CN112994509A - Self-generating flexible display and preparation method and application thereof - Google Patents
Self-generating flexible display and preparation method and application thereof Download PDFInfo
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
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- H02N1/04—Friction generators
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The utility model relates to a flexible display technology field provides a flexible display from electricity generation, flexible display from electricity generation includes first display area, second display area to and be used for connecting first display area with the middle bending region in second display area, wherein, middle bending region includes a plurality of constitutional units, and constitutional unit contains the contact surface that can rub. This flexible display can produce friction charge at daily use deformation in-process, collects the charge through the electrode in display area, can accomplish self-charging, and the mechanical energy conversion in the middle bending region is the electric energy, reduces the dissipation of mechanical energy, solves mobile device's battery continuation of the journey problem. Meanwhile, the friction power generation material adopted by the middle bending area can relieve the generation of cracks, the bending stability is improved while the self-power generation is completed, the bending area is prevented from being damaged, and the service life of the self-power-generation flexible display is prolonged.
Description
Technical Field
The application belongs to the technical field of flexible display, and particularly relates to a self-generating flexible display and a preparation method and application thereof.
Background
At present, with the rapid development of the flexible display screen technology, the production and popularization of various types of flexible mobile electronic device technologies are greatly expanded based on the foldability of the flexible display screen. However, the existing flexible display screen still has many problems, such as poor folding performance of the flexible display screen, insufficient flatness in the process of multiple folding, low recovery performance, short reversible deformation time, large bending curvature and the like. Meanwhile, in life, the use frequency of the mobile intelligent device is greatly increased, so that the problem of electric quantity endurance of the mobile intelligent device draws wide attention.
Disclosure of Invention
The application aims to provide a self-generating flexible display and a preparation method and application thereof, and aims to solve the problems that the folding performance of the flexible display is poor and the electric quantity endurance is weak in the prior art.
In order to achieve the purpose of the application, the technical scheme adopted by the application is as follows:
in a first aspect, the application provides a flexible display from electricity generation, flexible display from electricity generation includes first display area, second display area, and is used for connecting first display area with the middle bending region in second display area, wherein, middle bending region includes a plurality of constitutional units, just constitutional unit contains can carry out frictional contact surface.
In a second aspect, the application provides a method for manufacturing a self-generating flexible display, which includes the following steps:
providing a first display area, a second display area and a middle bending area,
and sequentially connecting the first display area, the middle bending area and the second display area to obtain the self-generating flexible display.
In a third aspect, the application provides a self-generating flexible display device, which comprises the self-generating flexible display.
The utility model provides a from flexible display of electricity generation that this application first aspect provided, from flexible display of electricity generation includes first display area, second display area, and is used for connecting first display area with the middle bending region in second display area, wherein, middle bending region includes a plurality of constitutional units, just constitutional unit contains can carry out frictional contact surface. When the self-generating flexible display starts to be folded, the middle bending area is in an unfolded state; when the self-generating flexible display starts to be unfolded, the middle bending area is in a squeezing state; this flexible display is in daily use, along with the deformation of "folding-expansion" from flexible display of electricity generation, middle bending region also can be corresponding the deformation that "expansion-extrusion" appears, in deformation process, the constitutional unit of a plurality of middle bending region contains the contact surface that can rub, all can produce friction charge between the contact surface, collect the charge through the electrode in display area, can accomplish self-charging, the mechanical energy conversion in middle bending region is the electric energy, reduce the dissipation of mechanical energy, solve the battery continuation of the journey problem of mobile device. Meanwhile, the friction power generation material adopted by the middle bending area can relieve the generation of cracks, the bending stability is improved while the self-power generation is completed, the bending area is prevented from being damaged, and the service life of the self-power-generation flexible display is prolonged.
According to the preparation method of the self-generating flexible display, the first display area, the middle bending area and the second display area are sequentially connected, the self-generating flexible display can be obtained, the preparation method is simple and easy to operate, large-scale instruments and equipment are not needed, and the application is wide.
The flexible display device from electricity generation that this application third aspect provided, flexible display device from electricity generation include flexible display from electricity generation because flexible display from electricity generation is being can alleviate the production of crackle, promotes the stability of buckling, accomplishes simultaneously from electricity generation, has prolonged the duration and the life from flexible display from electricity generation, consequently, flexible display device from electricity generation including flexible display from electricity generation has better stability of buckling, and can accomplish the self-charging effect, has prolonged flexible display device's from electricity generation life.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic bending diagram of a flexible foldable display provided in an embodiment of the present application, where 1 is a display area and 2 is a middle bending area.
Fig. 2 is an expanded schematic view of a flexible foldable display provided in an embodiment of the present application, where 1 is a display area and 2 is an intermediate bending area.
Fig. 3 is a schematic diagram of a flexible folding display provided by an embodiment of the present application, in which 3 is a polymer layer, and a bending region is in frictional contact when the flexible folding display is unfolded.
Fig. 4 is a schematic diagram of a flexible folding display provided by an embodiment of the present application, showing a frictional contact when a bending region is pressed.
Fig. 5 is a schematic power generation diagram of a self-generating flexible display provided in an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application more clearly apparent, the present application is further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In this application, the term "and/or" describes an association relationship of associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a is present alone, A and B are present simultaneously, and B is present alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In the present application, "at least one" means one or more, "a plurality" means two or more. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, "at least one (a), b, or c", or "at least one (a), b, and c", may each represent: a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, and c may be single or plural, respectively.
It should be understood that, in various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, some or all of the steps may be executed in parallel or executed sequentially, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The weight of the related components mentioned in the description of the embodiments of the present application may not only refer to the specific content of each component, but also represent the proportional relationship of the weight among the components, and therefore, the content of the related components is scaled up or down within the scope disclosed in the description of the embodiments of the present application as long as it is scaled up or down according to the description of the embodiments of the present application. Specifically, the mass described in the specification of the embodiments of the present application may be a mass unit known in the chemical industry field such as μ g, mg, g, kg, etc.
The terms "first" and "second" are used for descriptive purposes only and are used for distinguishing purposes such as substances from one another, and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. For example, a first XX may also be referred to as a second XX, and similarly, a second XX may also be referred to as a first XX, without departing from the scope of embodiments of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
The first aspect of the embodiment of the application provides a flexible display from electricity generation, and flexible display from electricity generation includes first display area, second display area to and be used for connecting the middle bending region of first display area and second display area, wherein, middle bending region includes a plurality of constitutional units, and constitutional unit contains can carry out the frictional contact surface.
The utility model provides a flexible display from electricity generation that this application first aspect provided, flexible display from electricity generation includes first display area, second display area to and be used for connecting the middle bending region in first display area and second display area, wherein, middle bending region includes a plurality of constitutional units, and constitutional unit contains can carry out the frictional contact surface. When the self-generating flexible display starts to be folded, the middle bending area is in an unfolded state; when the self-generating flexible display starts to be unfolded, the middle bending area is in an extrusion state; this flexible display is in daily use, along with the deformation of "folding-expansion" from the flexible display of electricity generation, middle bending region also can the corresponding deformation that appears "expand-extrude", all can produce friction charge at the deformation in-process, collects the charge through the electrode in display area, can accomplish self-charging, and the mechanical energy conversion in middle bending region is the electric energy, reduces the dissipation of mechanical energy, solves the battery continuation of the journey problem of mobile device. Meanwhile, the friction power generation material adopted by the middle bending area can relieve the generation of cracks, the bending stability is improved while the self-power generation is completed, the bending area is prevented from being damaged, and the service life of the self-power-generation flexible display is prolonged.
Specifically, the self-generating flexible display adopts the middle bending region to connect the first display region and the second display region, and through the connection of the middle bending region, as shown in fig. 1, when the self-generating flexible display starts to be folded, the first display region 1 and the second display region 1 are separated, and the middle bending region 2 connecting the first display region and the second display region is in an unfolded state; as shown in fig. 2, when the self-generating flexible display starts to be unfolded, the first display area 1 is in contact with the second display area 1, the middle bending area 2 connecting the first display area and the second display area is in a squeezing state, friction charges can be generated by controlling the bending deformation of the middle bending area, the self-charging effect of the flexible display can be completed by electrode mobile phone charges of the display areas, and the cruising ability of the battery is improved; meanwhile, the bending stability can be improved, and the display area can not be damaged.
Furthermore, the length of the middle bending area is 0.5-3 cm. The length of district of buckling in the middle of the control, and then guarantee that the connection in first display area and second display area is inseparable, makes the display area when folding, and middle buckle area is the state of expanding, can improve the stability of buckling, guarantees can not harm the material in display area, simultaneously, can be better at deformation in-process production friction charge, makes the flexible display accomplish the effect from charging. If the length of the middle bending area is too long, the first display area and the second display area are not tightly connected, and the normal use of the flexible display is influenced; if the length of the middle bending region is too short, the friction charge generated in the deformation process is less, and the self-charging function of the display cannot be well completed.
In some embodiments, the ratio of the lengths of the intermediate bending region and the display region is 1: (10-15), the proportion of the length of the middle bending area and the length of the display area are controlled, the size of the middle bending area can be well controlled, and the middle bending area is guaranteed not to influence the use of the self-generating flexible display. The length of the middle bending area is related to the length of the display area, and the length of the middle bending area is further determined according to the size of the display area; when the specification of the display area is great, the length of the middle bending area is long, if the specification of the display area is small, the length of the middle bending area is short, the first display area and the second display area can be connected well in the empty middle bending area and display area, the good bending effect is achieved, and meanwhile the self-charging effect of the display can be achieved.
Further, the constitutional unit is selected from "Z" style of calligraphy constitutional unit or "V" style of calligraphy constitutional unit, provides "Z" style of calligraphy constitutional unit or "V" style of calligraphy constitutional unit, can guarantee to rub each other between the contact surface, and can improve the deformation effect in middle bending zone, and then be favorable to improving bending stability, can not harm the display area simultaneously.
In some embodiments, the thickness of the extrusion state of the structural units is 100 micrometers-1 millimeter, the number of the structural units is 250-30000, the thickness and the number of the structural units are controlled, the length of the obtained middle bending area is further controlled, the deformation effect of the middle bending area can be improved, the bending stability is further improved, meanwhile, self-charging can be completed, and the battery endurance problem of the mobile device is improved.
Further, the constitutional unit includes the constitutional unit skeleton and sets up the polymeric layer on the surface of constitutional unit skeleton, sets up the constitutional unit, can improve the stability of buckling on the one hand, and what another important aspect is can increase polymer friction power generation's area of contact, makes the display produce friction charge at deformation in-process, makes the flexible display accomplish the effect from charging, has solved the problem of battery continuation of the journey.
In some embodiments, as shown in fig. 3, when the provided structural unit is a "Z" -shaped structural unit, and when the display is in a bent state, the "Z" -shaped structural unit is in an expanded state, the polymeric layer 3 disposed on the surface of the "Z" -shaped frame is in an expanded state; as shown in fig. 4, when the display is in the expanded state, the "Z" -shaped structural unit is in the compressed state, and the polymeric layer disposed on the surface of the "Z" -shaped frame is in the compressed state.
Furthermore, the structural unit skeleton is selected from any one of a polyimide skeleton, a polyethylene glycol terephthalate skeleton, a polycarbonate skeleton and a polystyrene skeleton, a polymer material with high Young modulus, namely, stronger deformation resistance is selected as a material of the structural unit skeleton, the stability of the obtained middle bending area in the deformation process is better, multiple bending can be realized, fracture cannot be caused, and the service life of the obtained self-generating flexible display can be longer.
Furthermore, the thickness of the skeleton of the structural unit is 40-300 microns, and if the skeleton is too thin, the stability of the middle bending area is poor, so that the skeleton is not beneficial to deformation for many times; if the skeleton is too thick, the deformation is not flexible, the normal use is affected, and the appearance is affected.
Further, a polymeric layer is arranged on the surface of the structural unit skeleton, wherein the polymeric layer is selected from any one of a polydimethylsiloxane polymeric layer and a polytetrafluoroethylene polymeric layer. The material that selects to have high elasticity, resistant buffering, antifriction is as the material of polymerization layer, and in the use, the polymerization layer can improve the frictional action between the constitutional unit skeleton because of contact and mutual friction effect, can produce contact charge and frictional charge, collects the charge through the electrode, forms the friction from the electricity generation subassembly, and along with the bending action of flexible display in the use, messenger's display produces frictional charge at deformation in-process, accomplishes the effect of self-charging.
Further, the thickness of the polymerization layer is 60-700 micrometers, if the thickness of the polymerization layer is too thin, the friction effect is affected, friction charges cannot be generated well in the deformation process, and the self-charging effect is affected; if the thickness of the polymeric layer is too thick, the overall structure is affected, and the normal use of the material is affected.
In some embodiments, the polymerization layer is disposed on each surface of the structural unit skeleton, and the polymerization layer is disposed on each surface, so that the friction effect can be improved, the display can generate friction charges well in the deformation process, and the flexible display can complete the self-charging function.
Further, the polymeric layer is obtained by rough treatment to form a polymeric layer with a rough microstructure. The polymerization layer with the rough microstructure is formed by rough treatment, so that the friction effect can be improved in the using process, the friction effect is improved, and further the display is ensured to generate friction charges well in the deformation process, so that the flexible display can complete the self-charging effect.
In some embodiments, the polymeric layer is subjected to acidification treatment, so that an acid solution can perform corrosion reaction on the polymeric layer material, a microporous structure is formed on the surface of the polymeric layer material, an uneven surface structure with roughness is obtained, the contact area of polymer friction power generation is increased, a display generates friction charges in the deformation process, the flexible display can complete the self-charging effect, and the battery endurance problem is solved. In the embodiment of the present invention, the acidification treatment mode can be selected from any one of the following treatment modes: and (3) providing acid liquor to coat the polymeric layer, mixing the acid liquor and the polymeric layer material to prepare the polymeric layer, and placing the polymeric layer in an acid liquor environment for treatment.
In some embodiments, during the acidizing of the polymeric layer, the acid solution includes, but is not limited to, a dilute hydrochloric acid solution, a dilute sulfuric acid solution, and a dilute nitric acid solution. Furthermore, the concentration of the acid solution is 0.5% -10%, the time of the acidification treatment is 0.5-10 hours, and the concentration of the acid solution and the time of the acidification treatment are determined according to the specific length of the middle bending area, so that the good roughness treatment effect of the middle bending area is ensured.
Furthermore, the roughness of the polymerization layer which is subjected to rough treatment and forms the roughness is 5-60 micrometers. If the roughness is too large, the surface structure of the middle bending area is affected, and normal use is not facilitated; if the roughness is too small, the concave-convex effect of the formed microstructure is not obvious, and the friction performance is not enhanced.
In some embodiments, the structures of the first display area and the second display area are the same, and the structures of the first display area and the second display area are not particularly required, and can be selected according to the requirements of actual use. The structure of the first display area and the structure of the second display area comprise electrode layers, contact charges and friction charges generated by the middle bending area based on contact and mutual friction are guaranteed to be collected through the electrode layers in the using process, self-charging is completed, mechanical energy of the middle bending area is converted into electric energy, dissipation of the mechanical energy is reduced, and the battery endurance problem of the mobile device is solved. In specific embodiments of the present invention, the electrode layer includes, but is not limited to, an ITO conductive layer, a metallic copper conductive layer, and a metallic silver conductive layer.
The second aspect of the embodiments of the present application provides a method for manufacturing a self-generating flexible display, including the following steps:
s01, providing a first display area, a second display area and a middle bending area,
and S02, sequentially connecting the first display area, the middle bending area and the second display area to obtain the self-generating flexible display.
According to the preparation method of the self-generating flexible display, the first display area, the middle bending area and the second display area are sequentially connected, the self-generating flexible display can be obtained, the preparation method is simple and easy to operate, large-scale instruments and equipment are not needed, and the application is wide.
In step S01, a first display area, a second display area, and a middle bending area are provided.
The middle bending area comprises a plurality of structural units, and the structural units comprise contact surfaces capable of rubbing. Further, the structural unit is selected from a Z-shaped structural unit or a V-shaped structural unit.
In some embodiments, the intermediate inflection regions are selected from a plurality of "zigzag" shaped structural elements. The Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer arranged on the surface of the Z-shaped framework.
In some implementations, a method of making a "zigzag" structural unit includes: providing a Z-shaped framework, and providing a polymer layer material solution for coating treatment to obtain a polymer layer arranged on the surface of the Z-shaped framework.
Further, the preparation method of the Z-shaped structural unit comprises the following steps: providing a Z-shaped framework, and providing a polymer layer material solution for coating treatment and acidification treatment to obtain a polymer layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
In some embodiments of the present invention, the method of preparing the "zigzag" structural unit comprises:
providing a Z-shaped framework;
preparing a polymeric layer material solution according to the mixing requirement of the polymeric layer material solution, adding an acid solution into the polymeric layer material solution, uniformly mixing to obtain a first mixed solution, coating the first mixed solution on each surface of the Z-shaped framework, and drying and curing to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
In other embodiments of the present invention, a method for preparing a zigzag structural unit includes:
providing a Z-shaped framework;
preparing a polymeric layer material solution according to the mixing requirement of the polymeric layer material solution, coating the polymeric layer material solution on each surface of the Z-shaped framework, and drying and curing to form a polymeric layer arranged on the Z-shaped framework;
providing an acid solution, coating the acid solution on the surface of the polymerization layer for treatment to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
In still other embodiments of the present invention, a method for preparing a zigzag structural unit includes:
providing a Z-shaped framework;
preparing a polymeric layer material solution according to the mixing requirement of the polymeric layer material solution, coating the polymeric layer material solution on each surface of the Z-shaped framework, and drying and curing to form a polymeric layer arranged on the Z-shaped framework to obtain a Z-shaped coarse framework;
providing an acid solution, placing the Z-shaped framework in the acid solution for treatment, volatilizing the acid solution to corrode the polymerization layer to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
In step S02, the first display area, the middle bending area, and the second display area are sequentially connected to obtain the self-generating flexible display. The connection is carried out by adopting a conventional connection mode of the device assembly, and the connection of each component is ensured.
When the self-generating flexible display obtained through preparation is used, the power generation schematic diagram is shown in fig. 5, when the self-generating flexible display is used, the self-generating flexible display forms a power generation assembly, the folding-unfolding deformation of the self-generating flexible display is realized, the unfolding-extrusion deformation can correspondingly occur in the middle bending area, in the deformation process, the middle bending area can generate friction charges, the charges are collected through electrodes in the display area, the self-charging can be completed, the mechanical energy in the middle bending area is converted into electric energy, the dissipation of the mechanical energy is reduced, and the power generation assembly is formed to complete the self-charging. The third aspect of the embodiment of the application provides a self-generating flexible display device, which comprises a self-generating flexible display.
The flexible display device from electricity generation that this application third aspect provided, the flexible display device from electricity generation that the flexible display device from electricity generation includes, because the flexible display from electricity generation is being can alleviate the production of crackle, promote the stability of buckling, accomplish simultaneously from electricity generation, the duration and the life of the flexible display from electricity generation have been prolonged, consequently, the flexible display device from electricity generation including the flexible display from electricity generation has better stability of buckling, and can accomplish the self-charging effect, the life from the flexible display device of electricity generation has been prolonged.
The following description will be given with reference to specific examples.
Example 1
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 3 cm, the length of the second display area is 3 cm, the length of the middle bending area is 0.3 cm, the middle bending area comprises 300Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 1 mm;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polyimide frameworks, and the polymeric layer is selected from polydimethylsiloxane polymeric layers; the thickness of the Z-shaped framework is 40 microns, and the thickness of the polymerization layer is 60 microns;
the polymerized layer is obtained by rough treatment and has the roughness of 5 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 1;
uniformly mixing a main agent component and a curing agent component of the polydimethylsiloxane polymeric layer material according to the mixing requirement of the polydimethylsiloxane polymeric layer material solution in a mass ratio of 10:1, adding a dilute hydrochloric acid solution with the mass percentage of 0.5-2.0 wt%, and uniformly mixing to obtain a first mixed solution;
coating the first mixed solution on each surface of the Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 2
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 2.4 centimeters, the length of the second display area is 2.4 centimeters, the length of the middle bending area is 0.24 centimeter, the middle bending area comprises 300Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 0.8 millimeter;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polyethylene terephthalate framework, and the polymeric layer is selected from polydimethylsiloxane polymeric layer; the thickness of the Z-shaped framework is 50 microns, and the thickness of the polymeric layer is 80 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 10 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 2;
uniformly mixing a main agent component and a curing agent component of the polydimethylsiloxane polymeric layer material according to the mixing requirement of the polydimethylsiloxane polymeric layer material solution in a mass ratio of 10:1, adding a dilute hydrochloric acid solution with the mass percentage of 0.5-2.0 wt%, and uniformly mixing to obtain a first mixed solution;
coating the first mixed solution on each surface of the Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 3
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 1.5 cm, the length of the second display area is 1.5 cm, the length of the middle bending area is 0.15 cm, the middle bending area comprises 300Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 0.5 mm;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polycarbonate frameworks, and the polymeric layer is selected from polydimethylsiloxane polymeric layers; the thickness of the Z-shaped framework is 60 microns, and the thickness of the polymerization layer is 90 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 15 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 3;
uniformly mixing a main agent component and a curing agent component of the polydimethylsiloxane polymeric layer material according to the mixing requirement of the polydimethylsiloxane polymeric layer material solution in a mass ratio of 10:1, adding a dilute hydrochloric acid solution with the mass percentage of 0.5-2.0 wt%, and uniformly mixing to obtain a first mixed solution;
coating the first mixed solution on each surface of the Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing to obtain a Z-shaped structural unit; the Z-shaped structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 4
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 10 cm, the length of the second display area is 10 cm, the length of the middle bending area is 1 cm, the middle bending area comprises 1000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 1 mm;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polystyrene frameworks, and the polymeric layer is selected from polydimethylsiloxane polymeric layers; the thickness of the Z-shaped framework is 90 microns, and the thickness of the polymeric layer is 60 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 20 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 4;
uniformly mixing a main agent component and a curing agent component of a polydimethylsiloxane polymeric layer material according to the mixing requirement of the polydimethylsiloxane polymeric layer material solution at a mass ratio of 10:1, coating the polydimethylsiloxane polymeric layer material solution on each surface of a Z-shaped framework, and curing at 40-80 ℃ for 3-6 h for drying and curing to obtain a Z-shaped coarse structural unit;
providing a dilute hydrochloric acid solution with the mass percentage of 0.5-2.0 wt%, coating the dilute hydrochloric acid solution on a polymerization layer of a Z-shaped coarse structural unit for 10-15 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 5
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 5 cm, the length of the second display area is 5 cm, the length of the middle bending area is 0.5 cm, the middle bending area comprises 1000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 0.5 mm;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polyimide frameworks, and the polymeric layer is selected from polytetrafluoroethylene polymeric layers; the thickness of the Z-shaped framework is 300 microns, and the thickness of the polymeric layer is 200 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 50 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 5;
uniformly mixing a main agent component and a curing agent component of a polytetrafluoroethylene polymer layer material according to the mixing requirement of the polytetrafluoroethylene polymer layer material solution according to the mass ratio of 10:1, coating the polytetrafluoroethylene polymer layer material solution on each surface of a Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing treatment to obtain a Z-shaped coarse structural unit;
providing a dilute nitric acid solution with the mass percentage of 0.5-2.0 wt%, coating the dilute hydrochloric acid solution on a polymerization layer of a Z-shaped coarse structural unit for 10-15 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 6
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 2.5 cm, the length of the second display area is 2.5 cm, the length of the middle bending area is 0.25 cm, the middle bending area comprises 1000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extrusion state is 0.25 mm;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from a polyethylene terephthalate framework, and the polymeric layer is selected from a polytetrafluoroethylene polymeric layer; the thickness of the Z-shaped framework is 200 microns, and the thickness of the polymeric layer is 250 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 20 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 6;
uniformly mixing a main agent component and a curing agent component of a polytetrafluoroethylene polymer layer material according to the mixing requirement of the polytetrafluoroethylene polymer layer material solution according to the mass ratio of 10:1, coating the polytetrafluoroethylene polymer layer material solution on each surface of a Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing treatment to obtain a Z-shaped coarse structural unit;
providing a dilute nitric acid solution with the mass percentage of 0.5-2.0 wt%, coating the dilute hydrochloric acid solution on a polymerization layer of a Z-shaped coarse structural unit for 10-15 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 7
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 30 cm, the length of the second display area is 30 cm, the length of the middle bending area is 3 cm, the middle bending area comprises 30000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extruded state is 100 micrometers;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from a polyethylene terephthalate framework, and the polymeric layer is selected from a polytetrafluoroethylene polymeric layer; the thickness of the Z-shaped framework is 200 microns, and the thickness of the polymeric layer is 250 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 20 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 7;
uniformly mixing a main agent component and a curing agent component of a polytetrafluoroethylene polymer layer material according to the mixing requirement of the polytetrafluoroethylene polymer layer material solution according to the mass ratio of 10:1, coating the polytetrafluoroethylene polymer layer material solution on each surface of a Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing treatment to obtain a Z-shaped coarse structural unit;
providing a dilute nitric acid solution with the mass percentage content of 0.5-2.0 wt%, and placing the Z-shaped coarse structural unit and the dilute nitric acid solution in a closed environment for treatment for 20-25 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 8
Self-generating flexible display and preparation method thereof
Self-generating flexibleDisplay device
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 30 cm, the length of the second display area is 30 cm, the length of the middle bending area is 3 cm, the middle bending area comprises 30000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extruded state is 100 micrometers;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polycarbonate frameworks, and the polymeric layer is selected from polytetrafluoroethylene polymeric layers; the thickness of the Z-shaped framework is 200 microns, and the thickness of the polymeric layer is 250 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 30 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 8;
uniformly mixing a main agent component and a curing agent component of a polytetrafluoroethylene polymer layer material according to the mixing requirement of the polytetrafluoroethylene polymer layer material solution according to the mass ratio of 10:1, coating the polytetrafluoroethylene polymer layer material solution on each surface of a Z-shaped framework, and curing for 3-6 h at 40-80 ℃ for drying and curing treatment to obtain a Z-shaped coarse structural unit;
providing a dilute nitric acid solution with the mass percentage content of 0.5-2.0 wt%, and placing the Z-shaped coarse structural unit and the dilute nitric acid solution in a closed environment for treatment for 20-25 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Example 9
Self-generating flexible display and preparation method thereof
Self-generating flexible display
The self-generating flexible display comprises a first display area, a second display area and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area comprises a plurality of structural units, the structural units comprise contact surfaces capable of being rubbed, and the structural units are Z-shaped structural units;
the length of the first display area is 30 cm, the length of the second display area is 30 cm, the length of the middle bending area is 3 cm, the middle bending area comprises 30000Z-shaped structural units, and the thickness of the Z-shaped structural units in an extruded state is 100 micrometers;
the Z-shaped structural unit comprises a Z-shaped framework and a polymeric layer arranged on each surface of the Z-shaped framework, the Z-shaped framework is selected from polystyrene frameworks, and the polymeric layer is selected from polydimethylsiloxane polymeric layers; the thickness of the Z-shaped framework is 200 microns, and the thickness of the polymeric layer is 250 microns;
the polymerized layer is obtained by rough treatment and has a roughness of 30 microns.
Preparation method of self-generating flexible display
Providing the Z-shaped framework provided by the embodiment 9;
uniformly mixing a main agent component and a curing agent component of a polydimethylsiloxane polymeric layer material according to the mixing requirement of the polydimethylsiloxane polymeric layer material solution at a mass ratio of 10:1, coating the polydimethylsiloxane polymeric layer material solution on each surface of a Z-shaped framework, and curing at 40-80 ℃ for 3-6 h for drying and curing to obtain a Z-shaped coarse structural unit;
providing a dilute nitric acid solution with the mass percentage content of 0.5-2.0 wt%, and placing the Z-shaped coarse structural unit and the dilute nitric acid solution in a closed environment for treatment for 20-25 minutes to obtain the Z-shaped coarse structural unit, wherein the Z-shaped coarse structural unit comprises a Z-shaped framework and a polymerization layer which is arranged on the surface of the Z-shaped framework and forms a rough microstructure surface.
Performance testing and analysis
The self-generating flexible display prepared in the embodiment 1-9 is bent, charges are collected through electrodes at the bending frequency of 10 Hz-50 Hz, and corresponding generating voltage is measured.
The specific analysis is as follows:
collecting charges through electrodes under the bending frequency of 10Hz of the self-generating flexible display prepared in the embodiment 1, and determining the corresponding generating voltage to be 60 mV;
collecting charges through electrodes under the bending frequency of 10Hz of the self-generating flexible display prepared in the embodiment 2, and determining the corresponding generating voltage to be 60 mV;
collecting charges through electrodes under the bending frequency of 10Hz of the self-generating flexible display prepared in the embodiment 3, and determining the corresponding generating voltage to be 60 mV;
collecting charges through electrodes under the bending frequency of 20Hz of the self-generating flexible display prepared in the embodiment 4, and determining the corresponding generating voltage to be 200 mV;
collecting charges through electrodes under the bending frequency of 20Hz of the self-generating flexible display prepared in the embodiment 5, and determining the corresponding generating voltage to be 200 mV;
collecting charges through electrodes under the bending frequency of 20Hz of the self-generating flexible display prepared in the embodiment 6, and determining the corresponding generating voltage to be 200 mV;
collecting charges through electrodes under the bending frequency of 50Hz of the self-generating flexible display prepared in the embodiment 7, and determining the corresponding generating voltage to be 1200 mV;
collecting charges through electrodes under the bending frequency of 50Hz of the self-generating flexible display prepared in the embodiment 8, and determining the corresponding generating voltage to be 1200 mV;
the self-generating flexible display prepared in example 9 was subjected to charge collection by electrodes at a 50Hz bending frequency, and the corresponding generating voltage was measured to be 1200 mV.
In summary, the self-generating flexible display provided by the application includes a first display area, a second display area, and a middle bending area for connecting the first display area and the second display area, wherein the middle bending area includes a plurality of structural units, and the structural units include contact surfaces capable of rubbing. When the self-generating flexible display starts to be folded, the middle bending area is in an unfolded state; when the self-generating flexible display starts to be unfolded, the middle bending area is in an extrusion state; this flexible display is in daily use, along with the deformation of "folding-expansion" from the flexible display of electricity generation, middle bending region also can the corresponding deformation that appears "expand-extrude", all can produce friction charge at the deformation in-process, collects the charge through the electrode in display area, can accomplish self-charging, and the mechanical energy conversion in middle bending region is the electric energy, reduces the dissipation of mechanical energy, solves the battery continuation of the journey problem of mobile device. Meanwhile, the friction power generation material adopted by the middle bending area can relieve the generation of cracks, the bending stability is improved while the self-power generation is completed, the bending area is prevented from being damaged, and the service life of the self-power-generation flexible display is prolonged.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The self-generating flexible display is characterized by comprising a first display area, a second display area and a middle bending area, wherein the middle bending area is used for connecting the first display area and the second display area, the middle bending area comprises a plurality of structural units, and the structural units contain contact surfaces capable of being rubbed.
2. The self-generating flexible display device according to claim 1, wherein the length of the middle bending region is 0.5-3 cm; and the structural unit is selected from a Z-shaped structural unit or a V-shaped structural unit.
3. The self-generating flexible display according to claim 2, wherein the thickness of the structural unit in the extruded state is 100 micrometers to 1 millimeter; and/or the presence of a gas in the gas,
the number of the structural units is 250-30000.
4. The self-generating flexible display according to any one of claims 1 to 3, wherein the structural unit comprises a structural unit skeleton and a polymeric layer disposed on the surface of the structural unit skeleton.
5. The self-generating flexible display according to claim 4, wherein the structural unit skeleton is selected from any one of a polyimide skeleton, a polyethylene terephthalate skeleton, a polycarbonate skeleton, and a polystyrene skeleton; and/or the presence of a gas in the gas,
the polymeric layer is selected from one of polydimethylsiloxane polymeric layer and polytetrafluoroethylene polymeric layer.
6. The self-generating flexible display according to claim 4, wherein the thickness of the structural unit skeleton is 40-300 micrometers; and/or the presence of a gas in the gas,
the thickness of the polymerization layer is 60-700 microns.
7. The self-generating flexible display according to claim 4, wherein the polymer layer is a roughness-forming polymer layer obtained by a roughening treatment.
8. The self-generating flexible display according to claim 7, wherein the roughness is 5-60 microns.
9. The preparation method of the self-generating flexible display is characterized by comprising the following steps of:
providing a first display area, a second display area and a middle bending area,
and sequentially connecting the first display area, the middle bending area and the second display area to obtain the self-generating flexible display.
10. A self-generating flexible display device is characterized by comprising the self-generating flexible display according to any one of claims 1 to 8.
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