CN114120815A - Stretchable display screen, manufacturing method thereof and electronic equipment - Google Patents
Stretchable display screen, manufacturing method thereof and electronic equipment Download PDFInfo
- Publication number
- CN114120815A CN114120815A CN202010880901.XA CN202010880901A CN114120815A CN 114120815 A CN114120815 A CN 114120815A CN 202010880901 A CN202010880901 A CN 202010880901A CN 114120815 A CN114120815 A CN 114120815A
- Authority
- CN
- China
- Prior art keywords
- substrate
- display screen
- stretchable display
- elastic
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 188
- 238000000034 method Methods 0.000 claims description 14
- 230000008602 contraction Effects 0.000 abstract description 14
- 239000000463 material Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 11
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 6
- 239000004205 dimethyl polysiloxane Substances 0.000 description 6
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 6
- 229920000431 shape-memory polymer Polymers 0.000 description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 6
- 239000013013 elastic material Substances 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- -1 Polydimethylsiloxane Polymers 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
Abstract
The application provides a stretchable display screen and a manufacturing method thereof, and an electronic device, wherein the stretchable display screen comprises an elastic substrate, the elastic substrate is provided with a first area and a second area, the first area is provided with openings distributed at intervals, the openings are provided with inner concave parts, the second area corresponds to the openings, and the elastic modulus of the elastic substrate in the first area is greater than that of the second area. The stretchable display screen provided by the application can overcome or weaken the contraction phenomenon when being stretched.
Description
Technical Field
The application relates to the technical field of display screens, in particular to a stretchable display screen, a manufacturing method of the stretchable display screen and electronic equipment.
Background
In the related art, the rigid display areas of the stretchable display screen are connected through the elastic lead areas, the rigid display areas do not bear stretching deformation, and the elastic lead areas connected with the rigid display areas can bear certain deformation, so that the whole display device is stretched. However, when the display screen is stretched in the longitudinal direction, a phenomenon of shrinkage (simply referred to as "shrinkage phenomenon") occurs in the transverse direction, which seriously affects the display appearance and the use experience.
Disclosure of Invention
The application provides a stretchable display screen, a manufacturing method thereof and electronic equipment.
The application provides a stretchable display screen, stretchable display screen includes the elastic substrate, the elastic substrate has first region and second region, the first region is provided with interval distribution's opening, the opening has interior recess, the second region corresponds to the opening, the elastic substrate is greater than at the elastic modulus of first region the elastic modulus of second region.
The application provides a stretchable display screen has set up the opening that has interior recess on elastic substrate, and when elastic substrate was stretched, the interior recess will disappear, perhaps sunken degree weakens to can offset or weaken elastic substrate's shrink deformation, and then make stretchable display screen stretched the time, can overcome or weaken the shrink phenomenon.
The application also provides a manufacturing method of the stretchable display screen, which comprises the following steps:
providing an elastic substrate, wherein the elastic substrate is provided with a first area and a second area, the first area is provided with openings distributed at intervals, the openings are provided with inner concave parts, the second area corresponds to the openings, and the elastic modulus of the elastic substrate in the first area is larger than that of the second area;
an electronic component is disposed on one side of the elastic substrate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of an electronic device provided in an embodiment of the present application.
Fig. 2 is a schematic view of a conventional stretchable display screen when it is not stretched.
Fig. 3 is a schematic view of the stretchable display screen shown in fig. 2 after being stretched.
Fig. 4 is a schematic view of a part of a stretchable display screen (when not stretched) according to an embodiment of the present application.
Fig. 5 is a schematic view of the stretchable display screen shown in fig. 4 in a sectional direction a-a.
Fig. 6 is a schematic view of an opening shape according to an embodiment of the present application.
Fig. 7 is a schematic view of an opening shape according to another embodiment of the present application.
Fig. 8 is a schematic view of the stretchable display screen shown in fig. 4 after being stretched in a first stretching direction.
Fig. 9 is a schematic view of a part of a stretchable display screen (when not stretched) according to another embodiment of the present application.
Fig. 10 is a schematic view of the stretchable display screen shown in fig. 9 in a B-B sectional direction.
Fig. 11 is a schematic view of the stretchable display screen shown in fig. 9 after being stretched in the X-axis direction.
Fig. 12 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 13 is a schematic view of the stretchable display panel shown in fig. 12 after being stretched.
Fig. 14 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 15 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 16 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 17 is a schematic view of the stretchable display screen shown in fig. 16 after being stretched.
Fig. 18 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 19 is a schematic view of the stretchable display screen shown in fig. 18 after being stretched.
Fig. 20 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 21 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 22 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 23 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application.
Fig. 24 is a schematic cross-sectional view of a stretchable display screen provided in an embodiment of the present application.
Fig. 25 is a schematic cross-sectional view of a stretchable display screen according to another embodiment of the present application.
Fig. 26 is a flowchart of a method for manufacturing a stretchable display screen according to an embodiment of the present application.
Fig. 27 is a flowchart of a method for manufacturing a stretchable display screen according to another embodiment of the present application.
Fig. 28 is a flowchart of a method for manufacturing a stretchable display screen according to still another embodiment of the present application.
Fig. 29 is a flowchart of a method for manufacturing a stretchable display screen according to still another embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present disclosure.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein may be combined with other embodiments, in case at least two embodiments are combined together without contradiction.
Referring to fig. 1, fig. 1 is a schematic view of an electronic device according to an embodiment of the present disclosure. The application provides an electronic device 1, the electronic device 1 comprises a device body 10 and a stretchable display screen 20, wherein the stretchable display screen is described in any embodiment below. The apparatus body 10 is connected with the stretchable display screen 20.
The electronic device 1 may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, an ultra-mobile personal computer (UMPC), an Augmented Reality (AR) \ Virtual Reality (VR) device, an electronic book, a television, an electronic chest card, a watch, a bracelet, a toothbrush, or the like having the stretchable display screen 20.
The device body 10 is used for carrying the stretchable display screen 20. The device body 10 refers to at least a portion of the electronic device 1, or an electronic device or a mechanical component including at least a portion of the electronic device 1, for example, the device body 10 may include, but is not limited to, a power module, a fingerprint module, an antenna module, a housing, and the like.
The stretchable display screen 20 can display a picture and has a stretchable function. When the stretchable display screen 20 performs a display operation, it may be electrically connected to the apparatus body 10, for example, in an embodiment, the stretchable display screen 20 further has a touch function, and when a touch operation of a user is sensed, the stretchable display screen 20 feeds back the touch operation to the apparatus body 10, and the apparatus body 10 controls the stretchable display screen 20 to perform a corresponding operation.
The stretchable display screen 20 has stretchability, which means the ability of the stretchable display screen 20 to undergo an elongation deformation in a tensile direction. However, when the stretchable display panel 20 is stretched along a pulling force, it will be deformed in a direction perpendicular to the pulling force, as shown in fig. 2 to 3, wherein fig. 2 is a schematic view of the conventional stretchable display panel when it is not stretched, and fig. 3 is a schematic view of the stretchable display panel shown in fig. 2 after it is stretched. The poisson ratio defines how the transverse dimension of a material changes when the material is subjected to longitudinal tension when the material is under unidirectional tension or compression, that is, the poisson ratio of the material determines how the transverse dimension of the material changes when the material is subjected to longitudinal tension, wherein longitudinal means the direction of load and transverse means the direction perpendicular to the load. In the related art, the stretchable display screen 20 is made of a high molecular polymer material and a rubber-like material, and the poisson ratio is 0.3-0.5, so that the stretchable display screen 20 is inevitably stretchable and deformable in the longitudinal direction and also inevitably contracts and deforms in the transverse direction (hereinafter referred to as a "contraction phenomenon"), and the transverse deformation seriously affects the use appearance and the use experience of the screen and may cause damage to devices.
In view of the above, the present application provides a stretchable display panel 20 that can overcome or weaken a contraction deformation occurring in a transverse direction when the stretchable display panel 20 is stretched in a longitudinal direction. The stretchable display screen 20 in the electronic device 1 provided in the above-described embodiment will be described in detail with reference to the drawings.
Referring to fig. 4 to 5, fig. 4 is a schematic partial structural view of a stretchable display screen (when not stretched) according to an embodiment of the present application. Fig. 5 is a schematic view of the stretchable display screen shown in fig. 4 in a sectional direction a-a. The stretchable display screen 20 includes an elastic substrate 200. The elastic substrate 200 has a first region a1 and a second region a 2. The first area a1 is provided with openings 211 distributed at intervals. The opening 211 has an internal recess 2110. The second area a2 corresponds to the opening 211. The elastic substrate 200 has a modulus of elasticity in the first region a1 that is greater than the modulus of elasticity in the second region a 2.
The material of the elastic substrate 200 may be, but not limited to, Polydimethylsiloxane (PDMS), Thermoplastic polyurethane elastomer (TPU), Shape Memory Polymer (SMP), or the like, or a combination thereof.
Specifically, the elastic base 200 includes a first base 210, and the area where the first base 210 is located is a first area a 1. The first substrate 210 has an opening 211 formed on a surface thereof. The number of the openings 211 is multiple, where the number is greater than or equal to two, and the openings 211 are distributed at intervals on the first substrate 210 and arranged in an array. Accordingly, the opening 211 is located at the second area a 2.
In a state where the stretchable display screen 20 is not stretched, the openings 211 have an inner recess 2110, it should be noted that at least one of all the openings 211 has an inner recess 2110, in other words, in one embodiment, all the openings 211 have an inner recess 2110; in another embodiment, a portion of the opening 211 has an interior recess 2110 and another portion of the opening 211 does not have an interior recess 2110.
The recess direction of the inner recess 2110 is toward the inside of the opening 211, and the recess direction of the inner recess 2110 is parallel to the surface of the first substrate 210. For fig. 4, the direction of the depression is parallel to the Y-axis direction.
Referring to fig. 6 and 7, fig. 6 is a schematic view of an opening shape according to an embodiment of the present application. Fig. 7 is a schematic view of an opening shape according to another embodiment of the present application. The inner recess 2110 may have a zigzag shape (as shown in fig. 6), an arc shape (as shown in fig. 7), and the like, and the embodiment of the present application is only exemplified by the zigzag shape.
It is understood that when the elastic substrate 200 is not stretched, the inner recesses 2110 are located at positions corresponding to the positions of the corresponding protrusions on the first substrate 210, and the protruding direction of the protrusions is the same as the recessed direction of the corresponding inner recesses 2110.
In one embodiment, the stretchable display screen 20 has a first stretching direction perpendicular to the concave direction of the inner recess 2110. Illustratively depicted in fig. 4, the first stretch direction is parallel to the X-axis in fig. 4. Referring to fig. 4 and 8 together, fig. 8 is a schematic view of the stretchable display screen shown in fig. 4 after being stretched in a first stretching direction. When a tensile force is applied in the first stretching direction of the elastic substrate 200, the elastic substrate 200 will be elongated in the first stretching direction, the protrusions of the first substrate 210 will be straightened, or the protrusion degree will be reduced, and accordingly, the concave portions 2110 will disappear, or the depression degree will be reduced, during which the change of the concave portions 2110 and the protrusions can counteract or weaken the contraction deformation of the elastic substrate 200 in the transverse direction (perpendicular to the first stretching direction, i.e., the Y-axis direction in fig. 8), so that the contraction phenomenon can be overcome or weakened when the stretchable display panel 20 is stretched in the first stretching direction.
In another embodiment, the stretchable display screen 20 has a second stretching direction parallel to the concave direction of the inner recess 2110. Illustratively depicted in fig. 4, the second stretching direction is parallel to the Y-axis in fig. 4. When a pulling force is applied to the elastic substrate 200 in the second stretching direction, the elastic substrate 200 will be stretched in the second stretching direction, the protrusion degree of the protrusion part of the first substrate 210 is reduced, and the recession degree of the inner recess part 2110 is correspondingly reduced, during which the inner recess part 2110 and the protrusion part are changed to counteract or reduce the contraction deformation of the elastic substrate 200 in the transverse direction (perpendicular to the second stretching direction, i.e., the X-axis direction in fig. 4), so that the contraction phenomenon can be overcome or reduced when the stretchable display panel 20 is stretched in the second stretching direction.
In yet another embodiment, the stretchable display screen 20 may also have a third stretching direction that is different from the first stretching direction and the second stretching direction. It is understood that when a pulling force is applied to the elastic substrate 200 in the third stretching direction, the pulling force in the direction can be decomposed in the first stretching direction and the second stretching direction, and as can be seen from the above two embodiments, the application of the pulling force in the first stretching direction and the second stretching direction can counteract or weaken the contraction deformation of the elastic substrate 200 in the transverse direction, so that the contraction deformation of the elastic substrate 200 in the transverse direction can be counteracted or weakened by stretching the elastic substrate 200 in the third stretching direction, so that the stretchable display panel 20 can overcome or weaken the contraction phenomenon when being stretched in the third stretching direction.
The stretchable display panel 20 provided in the present application is provided with the opening 211 having the concave portion 2110 on the elastic substrate 200, and when the elastic substrate 200 is stretched, the concave portion 2110 disappears or becomes less concave, so that the contraction deformation of the elastic substrate 200 in the transverse direction (perpendicular to the pulling direction) can be counteracted or weakened, and thus the contraction phenomenon can be overcome or weakened when the stretchable display panel 20 is stretched.
Please refer to fig. 4 and 5 together. In one embodiment, the first substrate 210 has a receiving space 212 formed from the opening 211, the receiving space 212 is located in the second area a2, and the receiving space 212 penetrates through the elastic substrate 200, in other words, the second area a2 of the elastic substrate 200 is hollowed out. With this arrangement, the weight of the elastic base 200 can be reduced, so that the electronic apparatus 1 is light-weighted. The accommodating space 212 may be a through hole or a blind hole.
Referring to fig. 9 to 11, fig. 9 is a schematic partial structural view of a stretchable display screen (when not stretched) according to another embodiment of the present application. Fig. 10 is a schematic view of the stretchable display screen shown in fig. 9 in a B-B sectional direction. Fig. 11 is a schematic view of the stretchable display screen shown in fig. 9 after being stretched in the X-axis direction. In another embodiment, the first substrate 210 has a receiving space 212 formed from the opening 211, the receiving space 212 is located in the second area a2, a forming direction of the receiving space 212 is perpendicular to a plane of the opening 211, and the receiving space 212 may be a through hole or a blind hole. The elastic substrate 200 further includes a second substrate 220, the second substrate 220 is disposed in the accommodating space 212, an outer peripheral side of the second substrate 220 is connected to the first substrate 210, and an elastic modulus of the second substrate 220 is smaller than an elastic modulus of the first substrate 210.
It can be understood that the second substrate 220 is filled in the accommodating space 212, so that the overall strength of the elastic substrate 200 can be increased, and the stretching life of the stretchable display screen 20 can be prolonged. Optionally, the second substrate 220 fills the entire accommodating space 212.
It should be noted that the orthographic projection of the second substrate 220 on the XOY plane is not coincident with the orthographic projection of the first substrate 210 on the XOY plane, that is, the cross-sectional shape formed by any other plane parallel to the XOY plane and the second substrate 220 is the same as the shape of the opening 211, in other words, when the opening 211 has the inner recess 2110, the second substrate 220 is recessed, and the recessed direction is the same as the recessed direction of the inner recess 2110; when the opening 211 does not have the inner recess 2110, the second substrate 220 is not recessed.
It should be noted that, in the presence of the second substrate 220, the elastic modulus of the first substrate 210 is greater than the elastic modulus of the second substrate 220, in other words, the second substrate 220 is easier to deform than the first substrate 210, when the elastic substrate 200 is stretched, the first substrate 210 deforms, and the first substrate 210 can pull the second substrate 220 more easily, so that the second substrate 220 deforms along with the first substrate 210. Specifically, when the elastic substrate 200 is stretched, the first substrate 210 will transmit the stretching force to the second substrate 220, and since the elastic modulus of the second substrate 220 is smaller than that of the first substrate 210, the concave shape of the second substrate 220 will disappear or decrease in the process that the inner concave portion 2110 of the elastic substrate 200 disappears or decreases in the concave degree, and the contraction deformation of the elastic substrate 200 in the transverse direction (perpendicular to the stretching force direction) is counteracted or weakened as a whole, so that the contraction phenomenon can be overcome or weakened when the stretchable display panel 20 is stretched.
It should be noted that the following embodiments are all exemplified based on the presence of the second substrate 220.
For one opening 211, the recess direction of the inner recess 2110 of the opening 211 may have one or more. The plurality means a number greater than or equal to two, and may be, for example, 2, 4, 5, 6, 8, 9, or the like. It will be appreciated that when the inner recess 2110 has a plurality of recess directions, then there are a plurality of first draw directions perpendicular to the recess directions. Accordingly, each opening 211 may be in the shape of a concave pentagon, a concave hexagon (as shown in fig. 4 and 9), a quadrangle star (as shown in fig. 12 and 13), a pentagon, a hexagon, an octagon (as shown in fig. 14), and the like, which is not limited in this application.
For the plurality of openings 211, in one embodiment, each of the openings 211 has the same shape (as shown in fig. 4, 9, 12, 14, etc.), it being understood that the same shape facilitates a more consistent internal force when the elastic substrate 200 is stretched, thereby increasing the lifespan of the stretchable display screen 20. In another embodiment, the shapes of the openings 211 are not all the same (as shown in fig. 15, the thick line portion in fig. 15 is the first substrate 210, i.e., the first substrate 210 is located between the different second substrates 220), for example, a portion of the openings 211 has the inner recess 2110, another portion does not have the inner recess 2110, and for example, all of the openings 211 have the inner recess 2110, but the shapes are different. It is understood that different poisson's ratio may be required according to different product requirements, and different shapes of the openings 211 may be designed to be mixed and matched.
Alternatively, the plurality of openings 211 are uniformly arranged along a predetermined direction, for example, the plurality of openings 211 are arranged at the same intervals along the transverse direction, the longitudinal direction, the oblique direction, and the like of the elastic base 200. It will be appreciated that the uniform arrangement facilitates a more uniform internal force when the flexible substrate 200 is stretched, thereby increasing the useful life of the stretchable display screen 20.
Alternatively, all the openings 211 have the same shape, and the recessed direction of the inner recess 2110 at the corresponding position of each opening 211 is the same, such as the arrangement shown in fig. 4, 9, 12, 14, etc. So set up, can make the atress direction unanimous to improve the tensile life-span of tensile display screen 20.
Alternatively, all of the openings 211 are the same shape and the same size.
Further, please refer to fig. 16 to 19. Fig. 16 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application. Fig. 17 is a schematic view of the stretchable display screen shown in fig. 16 after being stretched. Fig. 18 is a schematic structural diagram of a stretchable display screen (when not stretched) according to yet another embodiment of the present application. Fig. 19 is a schematic view of the stretchable display screen shown in fig. 18 after being stretched. The stretchable display screen 20 further includes electronic components 300 and connection lines 520. The electronic component 300 is disposed on one side of the elastic substrate 200. The connecting wire 520 is electrically connected to the electronic component 300 and is used for supplying power and/or signals to the electronic component 300.
The number of the electronic components 300 is plural, the electronic components 300 may be arranged at intervals, the functions of the electronic components 300 may be the same or different, and the functions may be, but not limited to, displaying, calculating, storing, sensing, communicating, and the like, for example, the electronic components 300 are display units for displaying.
Wherein the connecting wire 520 has elasticity, i.e. has a stretchable ability. The connecting wires 520 also have a conductive capability, and the material thereof can be, but not limited to, nano silver wire, conductive silver paste, graphene, etc. The connection line 520 may be curved (as shown in fig. 16) or linear (as shown in fig. 20) in a relaxed state in which the connection line 520 is not stretched.
The stretchable display screen 20 provided by the present application may be configured in other forms, such as the structural forms shown in fig. 21 to 23, besides the structural forms shown in fig. 16 to 20.
Further, the electronic component 300 may be disposed at a distance from the elastic substrate 200, or may be disposed on the surface of the elastic substrate 200.
In the case where the electronic components 300 are spaced apart from the elastic substrate 200, an orthographic projection of at least one electronic component 300 on the elastic substrate 200 falls within the range of the second substrate 220; or, the orthographic projection of the at least one electronic element 300 on the elastic substrate 200 falls within the range of the first substrate 210 and the second substrate 220; alternatively, the orthographic projection of the at least one electronic component 300 on the elastic substrate 200 falls within the range of the first substrate 210.
In the case that the electronic component 300 is disposed on the surface of the elastic substrate 200, the electronic component 300 is disposed on the surface of the first substrate 210; alternatively, the electronic device 300 is disposed on the surface of the second substrate 220. Optionally, in a case that at least one electronic component 300 is disposed on the surface of the second substrate 220, the orthographic projection of the electronic component 300 on the second substrate 220 all falls within the range of the second substrate 220, i.e., the projection is not overlapped with the inner recess 2110 of the opening 211, so that when the stretchable display screen 20 is stretched, the electronic component 300 is not affected by the stretching as much as possible.
Further, the connection lines 520 may be disposed on the same layer as the elastic substrate 200, i.e., the connection lines 520 are embedded in the elastic substrate 200. The connecting lines 520 may also be different layers from the elastic substrate 200, i.e., the connecting lines 520 may be disposed on the surface of the elastic substrate 200 or spaced apart from the elastic substrate 200.
Alternatively, the extending direction of the connecting wire 520 is the same as the recessed direction of the inner recess 2110 of the opening 211, and an orthographic projection of the connecting wire 520 on the plane of the opening 211 is connected to the inner recess 2110, as shown in fig. 20 and 21. It is understood that the arrangement is such that the stretchable direction of the connection line 520 coincides with the recess direction of the inner recess 2110, so that the internal stress of the stretchable display screen 20 can be more uniform, thereby improving the stretch life of the stretchable display screen 20.
Optionally, the electronic components 300 are arranged in an array, the connecting lines 520 are disposed along the array direction of the electronic components 300, and the same connecting line 520 is connected to the electronic components 300 at the same time. Further alternatively, the orthographic projection of the same connecting line 520 on the plurality of electronic components 300 can simultaneously fall within the range of the plurality of electronic components 300. It can be understood that, the same connecting line 520 is connected to a plurality of electronic components 300 at the same time, so that the number of the connecting lines 520 can be reduced, which is beneficial to improving the processing efficiency. In another embodiment, one connecting wire 520 may be used to connect only two electronic components 300. Of course, in other embodiments, the same connecting line 520 may be connected to a plurality of electronic components 300 at the same time, and one connecting line 520 is only used for connecting two electronic components 300.
The electronic component 300 and the connection line 520 are arranged in the following manner, which is exemplified by the accompanying drawings:
referring to fig. 24, fig. 24 is a schematic cross-sectional view of a stretchable display screen according to an embodiment of the present application. In one embodiment, the stretchable display screen 20 further comprises an elastic layer 500 and a carrier layer 600. The elastic layer 500 is disposed on the surface of the elastic substrate 200, and the carrier layer 600 is disposed on a side of the elastic layer 500 away from the elastic substrate 200. The carrier layer 600 includes a rigid portion 610 and an elastic portion 620 connected. The rigid portion 610 is disposed opposite to the second substrate 220, and the electronic component 300 is disposed on the rigid portion 610. The elastic layer 500 includes an elastic base 510 and a connecting line 520. The connecting wires 520 are accommodated in the elastic base 510 and connected to the electronic component 300. The stretchable display screen 20 may further include an encapsulation layer 700, where the encapsulation layer 700 is disposed on a side of the carrier layer 600 facing away from the elastic substrate 200 and covers the electronic element 300.
The elastic base 510 and the elastic portion 620 have elasticity, and the material of the elastic base 510 and the elastic portion 620 may be, but not limited to, Polydimethylsiloxane (PDMS), Thermoplastic polyurethane elastomer (TPU), or Shape Memory Polymer (SMP). The rigid portion 610 has a certain rigidity and is weaker in deformability than the elastic portion 620. The material of the rigid portion 610 may be, but is not limited to, Polyimide (PI), Polyethylene naphthalate (PEN), and the like.
Referring to fig. 25, fig. 25 is a schematic cross-sectional view of a stretchable display screen according to another embodiment of the present application. In another embodiment, at least one electronic component 300 is disposed on the second substrate 220, the projection of the electronic component 300 on the second substrate 220 falls within the range of the second substrate 220, and the connecting wires 520 are embedded in the first substrate 210 and the second substrate 220 and connected to the electronic component 300.
Referring to fig. 26, fig. 26 is a flowchart illustrating a method for manufacturing a stretchable display screen according to an embodiment of the present application. For a detailed description of the stretchable display screen 20, please refer to the drawings and the corresponding descriptions in the above related structural embodiments, and detailed descriptions thereof are omitted here. The manufacturing method of the stretchable display screen 20 may include, but is not limited to, steps S100 and S200, and the steps S100 and S200 are described in detail as follows.
S100: an elastomeric substrate 200 is provided.
S200: an electronic component 300 is disposed on one side of the elastic substrate 200.
The elastic substrate 200 has a first region a1 and a second region a2, the first region a1 is provided with spaced apart openings 211, the openings 211 have inner recesses 2110, the second region a2 corresponds to the openings 211, and the elastic modulus of the elastic substrate 200 in the first region a1 is greater than the elastic modulus in the second region a 2.
The material of the elastic substrate 200 may be, but is not limited to, Polydimethylsiloxane (PDMS), Thermoplastic polyurethane elastomer (TPU), Shape Memory Polymer (SMP), etc., or a combination thereof.
In one embodiment, the first substrate 210 has a through hole formed from the opening 211, the through hole is located in the second area a2, and the through hole penetrates through the elastic substrate 200, in other words, the second area a2 of the elastic substrate 200 is hollowed out. With this arrangement, the weight of the elastic base 200 can be reduced, so that the electronic apparatus 1 is light-weighted.
In another embodiment, the first substrate 210 has a receiving space formed from the opening 211, and the receiving space is located in the second area a2, and the forming direction of the receiving space is perpendicular to the plane of the opening 211. The elastic substrate 200 further includes a second substrate 220, the second substrate 220 is disposed in the accommodating space, an outer peripheral side of the second substrate 220 is connected to the first substrate 210, and an elastic modulus of the second substrate 220 is smaller than an elastic modulus of the first substrate 210. It is understood that the second substrate 220 is filled in the receiving space, which can increase the overall strength of the elastic substrate 200. Optionally, the second substrate 220 fills the receiving space. Wherein, the accommodating space can be a through hole or a blind hole.
Referring to fig. 27, fig. 27 is a flowchart of a stretchable display screen manufacturing method according to another embodiment of the present application. Further, in the above embodiment, the step S100 may include, but is not limited to, the steps S110 and S120, and the detailed description about the steps S110 and S120 is as follows.
S110: the modulus of elasticity of the elastic substrate 200 within the second region a2 is reduced.
Specifically, the elastic base 200 is formed of an elastic material. When the elastic substrate 200 is formed using the same material, it is necessary to make the elastic substrate 200 have an elastic modulus at the first region a1 greater than that of the second region a2, thereby forming the first substrate 210 located at the first region a1, and forming the second substrate 220 located at the second region a2, wherein the elastic modulus of the first substrate 210 is greater than that of the second substrate 220. The elastic modulus of the elastic substrate 200 in the second region a2 may be reduced by chemical, physical, or the like methods.
Referring to fig. 28, fig. 28 is a flowchart of a stretchable display screen manufacturing method according to another embodiment of the present application. In one embodiment, the step S110 may include, but is not limited to, step S111, and the description about step S111 is as follows:
s111: the thickness of the elastic substrate 200 in the second area a2 is reduced.
Specifically, when the elastic substrate 200 is formed by using the same elastic material, the elastic substrate 200 partially located in the second region a2 may be removed by physical or chemical means to reduce the thickness of the elastic substrate 200 in the second region a2, the elastic substrate 200 after thinning is the second substrate 220, and the remaining non-thinned portion is the first substrate 210. It is understood that the second substrate 220 formed after the processing is thinner than the first substrate 210, so that the second substrate 220 is more easily deformed than the first substrate 210, in other words, when the stretchable display screen 20 is stretched, the first substrate 210 is deformed, and the first substrate 210 can easily pull the second substrate 220, so that the second substrate 220 follows the first substrate 210 to be deformed.
Referring to fig. 29, fig. 29 is a flowchart of a stretchable display screen manufacturing method according to another embodiment of the present application. In another embodiment, the step S110 may include, but is not limited to, step S112, and the description about step S112 is as follows:
s112: softening the elastic substrate 200 in the second area a 2.
Specifically, when the elastic substrate 200 is formed of the same elastic material, the elastic substrate 200 located in the second region a2 may be softened by chemical means, the softened elastic substrate 200 is the second substrate 220, and the rest of the un-softened portion is the first substrate 210. It is understood that the second substrate 220 formed after the softening process is softer than the first substrate 210, so as to be more easily deformed, in other words, when the stretchable display screen 20 is stretched, the first substrate 210 is deformed, and the first substrate 210 can more easily pull the second substrate 220, so that the second substrate 220 follows the first substrate 210 to be deformed.
Of course, in the above step "S100: in providing the elastic substrate 200 ″, the elastic substrate 200 may also be composed of elastic materials with different elastic moduli, that is, the materials of the first substrate 210 and the second substrate 220 are different, and the elastic modulus of the first substrate 210 is greater than the elastic modulus of the second substrate 220. That is, the elastic substrate 200 is formed using elastic materials having different elastic moduli to obtain the first and second substrates 210 and 220 having different elastic moduli, and after the formation, the elastic modulus of the second region a2 is not required to be reduced by chemical, physical, or other means, so that the manufacturing efficiency can be improved.
Although embodiments of the present application have been shown and described, it is understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present application, and that such changes and modifications are also to be considered as within the scope of the present application.
Claims (10)
1. A stretchable display screen, comprising an elastic substrate, wherein the elastic substrate is provided with a first area and a second area, the first area is provided with openings distributed at intervals, the openings are provided with inner concave parts, the second area corresponds to the openings, and the elastic modulus of the elastic substrate in the first area is larger than that in the second area.
2. The stretchable display of claim 1, wherein the second region of the elastic substrate is hollowed out.
3. A stretchable display screen according to claim 1, wherein the stretchable display screen has a first stretching direction perpendicular to a direction of concavity of the interior recess.
4. A stretchable display screen according to claim 1, wherein the stretchable display screen has a second stretching direction that is parallel to a direction of concavity of the interior recess.
5. The stretchable display panel of claim 1, wherein the concave direction of the concave portion is plural.
6. A stretchable display screen according to claim 1, further comprising a connection line, wherein the connection line extends in the same direction as the concave direction of the concave portion of the opening, and an orthographic projection of the connection line on the plane of the opening is connected to the concave portion.
7. An electronic device, characterized in that the electronic device comprises a device body and a stretchable display screen according to any one of claims 1-6, wherein the device body is connected with the stretchable display screen.
8. A manufacturing method of a stretchable display screen is characterized by comprising the following steps:
providing an elastic substrate, wherein the elastic substrate is provided with a first area and a second area, the first area is provided with openings distributed at intervals, the openings are provided with inner concave parts, the second area corresponds to the openings, and the elastic modulus of the elastic substrate in the first area is larger than that of the second area;
an electronic component is disposed on one side of the elastic substrate.
9. The method of claim 8, wherein said providing an elastomeric substrate comprises:
reducing the modulus of elasticity of the elastic substrate in the second region.
10. The method of claim 9, wherein said reducing the modulus of elasticity of the elastic substrate in the second region comprises:
reducing the thickness of the elastic substrate in the second region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880901.XA CN114120815A (en) | 2020-08-27 | 2020-08-27 | Stretchable display screen, manufacturing method thereof and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010880901.XA CN114120815A (en) | 2020-08-27 | 2020-08-27 | Stretchable display screen, manufacturing method thereof and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114120815A true CN114120815A (en) | 2022-03-01 |
Family
ID=80374790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010880901.XA Pending CN114120815A (en) | 2020-08-27 | 2020-08-27 | Stretchable display screen, manufacturing method thereof and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114120815A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240547A (en) * | 2022-06-15 | 2022-10-25 | 昆山国显光电有限公司 | Display device and method for manufacturing the same |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177656A (en) * | 2013-03-26 | 2013-06-26 | 哈尔滨工业大学 | Flexible back plate for flexible display |
| CN105514115A (en) * | 2014-10-08 | 2016-04-20 | 三星显示有限公司 | Stretchable film, methods of manufacturing the same and display devices including the same |
| CN105895662A (en) * | 2015-02-17 | 2016-08-24 | 三星显示有限公司 | Stretchable Display Device And Manufacturing Method Thereof |
| US20180061743A1 (en) * | 2016-08-30 | 2018-03-01 | Apple Inc. | Flexible Circuit Substrate With Temporary Supports and Equalized Lateral Expansion |
| CN109599402A (en) * | 2018-12-03 | 2019-04-09 | 京东方科技集团股份有限公司 | Display base plate and display device |
| CN110065267A (en) * | 2019-04-26 | 2019-07-30 | 京东方科技集团股份有限公司 | It can shape-changing material, deformation structure, Micro-LED display device, strain transducer |
| CN110945674A (en) * | 2017-06-15 | 2020-03-31 | 高丽大学校世宗产学协力团 | Stretchable substrate structure and method for manufacturing same, stretchable display and method for manufacturing same, and method for using stretchable display |
| KR20200082370A (en) * | 2018-12-28 | 2020-07-08 | 서울대학교산학협력단 | Stretchable wiring board device, method of manufacturing the stretchable wiring board device, Electronic device including the stretchable wiring board device |
-
2020
- 2020-08-27 CN CN202010880901.XA patent/CN114120815A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103177656A (en) * | 2013-03-26 | 2013-06-26 | 哈尔滨工业大学 | Flexible back plate for flexible display |
| CN105514115A (en) * | 2014-10-08 | 2016-04-20 | 三星显示有限公司 | Stretchable film, methods of manufacturing the same and display devices including the same |
| CN105895662A (en) * | 2015-02-17 | 2016-08-24 | 三星显示有限公司 | Stretchable Display Device And Manufacturing Method Thereof |
| US20180061743A1 (en) * | 2016-08-30 | 2018-03-01 | Apple Inc. | Flexible Circuit Substrate With Temporary Supports and Equalized Lateral Expansion |
| CN110945674A (en) * | 2017-06-15 | 2020-03-31 | 高丽大学校世宗产学协力团 | Stretchable substrate structure and method for manufacturing same, stretchable display and method for manufacturing same, and method for using stretchable display |
| CN109599402A (en) * | 2018-12-03 | 2019-04-09 | 京东方科技集团股份有限公司 | Display base plate and display device |
| KR20200082370A (en) * | 2018-12-28 | 2020-07-08 | 서울대학교산학협력단 | Stretchable wiring board device, method of manufacturing the stretchable wiring board device, Electronic device including the stretchable wiring board device |
| CN110065267A (en) * | 2019-04-26 | 2019-07-30 | 京东方科技集团股份有限公司 | It can shape-changing material, deformation structure, Micro-LED display device, strain transducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115240547A (en) * | 2022-06-15 | 2022-10-25 | 昆山国显光电有限公司 | Display device and method for manufacturing the same |
| CN115240547B (en) * | 2022-06-15 | 2023-06-23 | 昆山国显光电有限公司 | Display device and method for manufacturing the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10410962B2 (en) | Encapsulated conformal electronic systems and devices, and methods of making and using the same | |
| EP3412444B1 (en) | Electronic device and method of manufacturing the same | |
| CN211455156U (en) | Display module and electronic equipment | |
| WO2021218999A1 (en) | Support member, display module, and electronic device | |
| CN106919223B (en) | Elastic device and deformable equipment | |
| CN109690273B (en) | Sensor, belt, electronic device and watch type electronic device | |
| CN111816082A (en) | Display assembly, assembling method thereof and display device | |
| CN112750363B (en) | Display assembly, display module, manufacturing method and electronic equipment | |
| CN113167663B (en) | Pressure sensor and electronic device | |
| US4993958A (en) | High density planar interconnect | |
| US10615794B1 (en) | Capacitive sensor | |
| CN114120815A (en) | Stretchable display screen, manufacturing method thereof and electronic equipment | |
| CN210986143U (en) | Mobile terminal | |
| CN114729844A (en) | Three-axis sensor, sensor module, and electronic device | |
| CN111430437B (en) | Flexible display screen, electronic equipment and method for manufacturing flexible display screen | |
| US11846993B2 (en) | Mobile device with flexible display and housing | |
| CN115428165A (en) | Electronic device with curved display | |
| CN113936550B (en) | Inward folding screen electronic equipment | |
| CN210405431U (en) | Key structure and mobile terminal | |
| CN220569197U (en) | Fingerprint sensor and electronic device comprising same | |
| CN111970812B (en) | Fingerprint key module and electronic equipment | |
| CN108957891B (en) | Array substrate | |
| CN116963389A (en) | Flexible circuit board with elasticity and elastomer using same | |
| CN116548088A (en) | Display device | |
| CN116954407A (en) | Flexible touch sensing module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20220301 |