CN112799532B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112799532B CN112799532B CN202110035241.XA CN202110035241A CN112799532B CN 112799532 B CN112799532 B CN 112799532B CN 202110035241 A CN202110035241 A CN 202110035241A CN 112799532 B CN112799532 B CN 112799532B
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- pressure sensing
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- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/40—OLEDs integrated with touch screens
Abstract
The application discloses display panel and display device, display panel include the flat display district and are located the frame display area of flat display district both sides, and display panel includes: the display device comprises a display functional layer and a touch functional layer arranged on the display functional layer; the touch control function layer comprises a plurality of touch control induction electrodes distributed in the plane display area in an array mode and a plurality of pressure induction electrodes distributed in the frame display area; the display function layer comprises a substrate, and a light emitting layer, a cathode layer and a thin film packaging layer which are sequentially arranged on the substrate, and the touch function layer is arranged on the thin film packaging layer; the film packaging layer is provided with a plurality of grooves in one-to-one correspondence with the pressure sensing electrodes, the display function layer further comprises a plurality of pressure sensing parts in one-to-one correspondence with the grooves, the pressure sensing parts are arranged in the grooves, and two ends of each pressure sensing part are electrically connected with the pressure sensing electrodes and the cathode layer respectively. The cathode layer is reused, so that the process flow is simplified, and the cost is reduced; meanwhile, the occurrence of edge false touch is avoided.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel and a display device.
Background
With the development of the full-screen mobile phone market, the waterfall screen becomes a competitive development direction for various large mobile phone manufacturers as a technology with great development potential, and compared with the traditional screen, the waterfall screen has a bending display area at the frame of the mobile phone, so that the visual influence of the black frame at the edge of the traditional OLED screen is greatly reduced, and the display is full and gorgeous. However, for such a waterfall screen, the original physical keys (start key/volume key) of the left and right frames do not have space.
In the prior art, the keys adopted on the left frame and the right frame are pressure sensing schemes, namely a linear motor and a pressure sensor inside the body are used, so that the functions of the keys can be triggered and vibration feedback can be given as long as corresponding pressing force is sensed, and the external pressure sensor occupies the internal space of the mobile phone and is not beneficial to integration development. Meanwhile, the waterfall screen also has the problem of edge mistouch, namely when holding the frame of the mobile phone, the edge of the screen may be missensed and identified, which affects the user experience.
Therefore, a display panel and a display device are urgently needed to solve the technical problems of low integration level and easy occurrence of edge false touch in the prior art.
Disclosure of Invention
The application provides a display panel and a display device, and aims to solve the technical problems that the integration level is not high and edge error touch is easy to occur in the prior art.
In a first aspect, the present application provides a display panel, including a planar display area and a frame display area located on two sides of the planar display area, the display panel includes: the display device comprises a display functional layer and a touch functional layer arranged on the display functional layer;
the touch control function layer comprises a plurality of touch control induction electrodes distributed in the plane display area in an array mode and a plurality of pressure induction electrodes distributed in the frame display area;
the display function layer comprises a substrate, and a light emitting layer, a cathode layer and a thin film packaging layer which are sequentially arranged on the substrate, and the touch function layer is arranged on the thin film packaging layer;
the film packaging layer is provided with a plurality of grooves which are in one-to-one correspondence with the plurality of pressure sensing electrodes,
the display function layer further comprises a plurality of pressure sensing parts which are in one-to-one correspondence with the grooves, the pressure sensing parts are arranged in the grooves, and two ends of each pressure sensing part are electrically connected to the pressure sensing electrode and the cathode layer respectively.
In some implementations of the present application, the touch sensing electrodes and the pressure sensing electrodes are disposed in the same layer.
In some implementations of the present disclosure, the display panel further includes a first control chip, a second control chip, a plurality of touch sensing electrode leads corresponding to the plurality of touch sensing electrodes one to one, and a plurality of pressure sensing electrode leads corresponding to the plurality of pressure sensing electrodes one to one, where one end of each touch sensing electrode lead is electrically connected to the first control chip, and the other end of each touch sensing electrode lead is electrically connected to the corresponding touch sensing electrode; one end of the pressure sensing electrode lead is electrically connected to the second control chip, and the other end of the pressure sensing electrode lead is electrically connected to the corresponding pressure sensing electrode.
In some implementations of the present application, the pressure-sensing electrodes include a first pressure-sensing electrode and a second pressure-sensing electrode, the frame display area includes a first frame display area, and the first pressure-sensing electrode and the second pressure-sensing electrode are disposed in the first frame display area; along a first direction, a center line of the first pressure sensing electrode and a center line of the second pressure sensing electrode coincide.
In some implementations of the present disclosure, the pressure-sensing electrode further includes a third pressure-sensing electrode, the frame display area includes a second frame display area, and the third pressure-sensing electrode is disposed in the second frame display area; along a second direction, a center line of the third sensing electrode coincides with a symmetry axis of the first pressure sensing electrode and the second pressure sensing electrode.
In some implementations of the present application, the display function layer further includes an organic layer disposed between the light emitting layer and the cathode layer, the organic layer includes an organic layer body and two protruding portions disposed on one side of the pressure sensing electrode, and the two protruding portions are disposed on two sides of the groove.
In some implementations of the present application, the diameter of the protrusion is greater than 20 μm, the height of the protrusion is not less than 3 μm, and the taper angle of the protrusion is less than 45 °.
In some implementations of the present application, the light emitting layer includes a plurality of pixel defining grooves disposed at intervals, and pixels are disposed in the pixel defining grooves, and include first pixels adjacent to the grooves and second pixels not adjacent to the grooves, where an area of the first pixels is smaller than an area of the second pixels.
In some implementations of the present application, the first pixel is spaced apart from the recess by more than 10 μm.
In a second aspect, the present application further provides a display device, where the display device includes a display panel, a hardware portion, and an elastic member disposed between the display panel and the hardware portion, and the display panel is the display panel in any of the above implementation manners.
The two ends of the pressure sensing part are electrically connected to the pressure sensing electrode and the cathode layer respectively, the cathode layer is reused, the pressure sensing part is arranged in the groove formed in the thin film packaging layer, the pressure touch function can be integrated on the touch function layer, and the integration level of the display panel is improved; simultaneously, this application sets up a plurality of forced induction electrodes in the frame display area through setting up a plurality of touch-control induction electrodes in the plane display area, can avoid the marginal mistake to touch the emergence, improves user experience and feels.
Drawings
Fig. 1 is a top view of a display panel provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an organic layer provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of a touch functional layer according to an embodiment of the present disclosure;
fig. 5 is a schematic view illustrating a manufacturing process of a display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application.
The components in the figure are identified as follows: the display device includes a display panel 100, a flat display area 101, a frame display area 102, a first frame display area 1021, a second frame display area 1022, a display function layer 200, a light emitting layer 220, a pixel 221, a first pixel 222, a second pixel 223, a cathode layer 230, a thin film encapsulation layer 240, a groove 241, a first inorganic encapsulation layer 242, an organic encapsulation layer 243, a second inorganic encapsulation layer 244, a pressure sensing portion 250, an organic layer 260, an organic layer body 261, a protrusion portion 262, a touch function layer 300, a touch sensing electrode 310, a pressure sensing electrode 320, a first pressure sensing electrode 321, a second pressure sensing electrode 322, a third pressure sensing electrode 323, a first control chip 400, a second control chip 500, a touch sensing electrode lead 600, a pressure sensing electrode lead 700, a flat layer 800, a display device 10, a hardware portion 11, and an elastic element 12.
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.
The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The embodiment of the application provides a display panel and a display device. The details will be described below.
As shown in fig. 1 and fig. 2, the display panel 100 includes a planar display area 101 and a frame display area 102 located at two sides of the planar display area 101, wherein the display panel 100 includes: a display functional layer 200 and a touch functional layer 300 disposed on the display functional layer 200;
the touch function layer 300 includes a plurality of touch sensing electrodes 310 distributed in the planar display area 101 and a plurality of pressure sensing electrodes 320 distributed in the border display area 102 in an array;
the display function layer 200 comprises a substrate 210, and a light emitting layer 220, a cathode layer 230 and a thin film encapsulation layer 240 which are sequentially arranged on the substrate 210, wherein the touch function layer 300 is arranged on the thin film encapsulation layer 240;
the film encapsulation layer 240 is provided with a plurality of grooves 241 corresponding to the plurality of pressure-sensitive electrodes 320 one to one.
The film encapsulation layer 240 further includes a plurality of pressure sensing portions 250 corresponding to the plurality of grooves 241, the pressure sensing portions 250 are disposed in the grooves 241, and two ends of the pressure sensing portions 250 are electrically connected to the pressure sensing electrodes 320 and the cathode layer 230, respectively.
Here, the pressure-sensitive portion 250 in the embodiment of the present application is formed by using an Ink Jet Printer (IJP) technique. The piezoelectric material is an organic piezoelectric material or a composite piezoelectric material, such as polyvinylidene fluoride (PVDF), a polymer-piezoelectric ceramic composite material and the like.
In the embodiment of the application, the two ends of the pressure sensing part 250 are respectively electrically connected to the pressure sensing electrode 320 and the cathode layer 230, so that the cathode layer 230 is reused, the process flow is simplified, and the cost is reduced; meanwhile, the pressure sensing part 250 is arranged in the groove 241 formed in the thin film encapsulation layer 240, so that the pressure touch function can be integrated on the touch function layer 300, and the integration level of the display panel 100 is improved; further, in the embodiment of the application, the touch sensing electrodes 310 are disposed in the planar display area 101, and the pressure sensing electrodes 320 are disposed in the border display area 102, so that a situation of a wrong touch when a user holds the border display area 102 is avoided, and a user experience feeling is improved. Further, since the plurality of pressure-sensitive electrodes 320 are disposed in the frame display area 102, the display effect of the flat display area 101 is not affected, and the optical uniformity of the flat display area 101 can be ensured.
In the embodiment of the present application, the cathode layer 230 provides a reference potential, and the pressure sensing principle of the display panel 100 is as follows: when the user presses the pressure-sensitive electrode 320, the pressure-sensitive portion 250 deforms, and the deformation is converted into a voltage signal, and pressure sensing can be achieved by measuring a voltage difference between a voltage of the pressure-sensitive portion 250 and a reference potential of the cathode layer 230.
Further, in some embodiments of the present application, the touch sensing electrodes 310 and the pressure sensing electrodes 320 are disposed in the same layer. Through the above arrangement, in the manufacturing of the display panel 100, the touch sensing electrode 310 and the pressure sensing electrode 320 can be manufactured by patterning a layer of metal, so as to further simplify the manufacturing process and avoid the risk of the manufacturing process due to more manufacturing processes.
Further, as shown in fig. 1, in some embodiments of the present application, the display panel 100 further includes a first control chip 400, a second control chip 500, a plurality of touch sensing electrode leads 600 corresponding to the plurality of touch sensing electrodes 310 one to one, and a plurality of pressure sensing electrode leads 700 corresponding to the plurality of pressure sensing electrodes 320 one to one, one end of the touch sensing electrode lead 600 is electrically connected to the first control chip 400, and the other end of the touch sensing electrode lead 600 is electrically connected to the corresponding touch sensing electrode 310; one end of the pressure sensing electrode lead 700 is electrically connected to the second control chip 500, and the other end of the pressure sensing electrode lead 700 is electrically connected to the corresponding pressure sensing electrode 320.
Through the above arrangement, independence and irrelevance between the pressure sensing electrode 320 and the touch sensing electrode 310 can be realized, and the possibility of erroneous touch of the display panel 100 is further reduced.
Further, as shown in fig. 1, in some embodiments of the present application, the pressure sensing electrode 320 includes a first pressure sensing electrode 321, a second pressure sensing electrode 322, and a third pressure sensing electrode 323, the frame display area 102 includes a first frame display area 1021 and a second frame display area 1022, the first pressure sensing electrode 321 and the second pressure sensing electrode 322 are disposed in the first frame display area 1021, and the third pressure sensing electrode 323 is disposed in the second frame display area 1022; the center line of the first pressure-sensitive electrode 321 coincides with the center line of the second pressure-sensitive electrode 322 along the first direction X, and the center line of the third pressure-sensitive electrode 323 coincides with the symmetry axes of the first pressure-sensitive electrode 321 and the second pressure-sensitive electrode 322 along the second direction Y.
It should be noted that, the pressure-sensitive electrode 320 is disposed on the upper portion of the frame display area 102, and by the above arrangement, the user experience can be improved.
The first pressure sensing electrode 321, the second pressure sensing electrode 322, the volume up key and the volume down key, and the third pressure sensing electrode 323 are start keys.
It should be understood that: the pressure-sensitive electrodes 320 are not limited to the three pressure-sensitive electrodes, and the setting positions and functions of the pressure-sensitive electrodes 320 are not limited to the above description, and should be adjusted according to the actual application, which is not described herein.
Further, as shown in fig. 3, in some embodiments of the present application, the display function layer 200 further includes an organic layer 260 disposed between the light emitting layer 220 and the cathode layer 230, the organic layer 260 includes an organic layer body 261 and two protrusions 262 protruding along a side close to the pressure-sensitive electrode 320, and the two protrusions 262 are disposed at both sides of the groove 241.
This application embodiment sets up two bellying 252 through the both sides at recess 241, makes film packaging layer 240 climb at the bellying 252 corresponding position department, improves film packaging layer 240 to the encapsulated effect of luminescent layer 220, avoids piezoelectric material to flow to luminescent layer 220, causes the influence to luminescent layer 220, and then realizes improving the technical effect that display panel 100 shows the function.
Further, in order to improve the encapsulation effect of the thin film encapsulation layer 240, the diameter of the protrusion 252 is greater than 20 μm, the height of the protrusion 252 is not less than 3 μm, and the taper angle of the protrusion 252 is less than 45 °.
Further, in order to ensure the process feasibility and stability of the manufacturing process of the groove 241, the edge of the groove 241 is arc-shaped. Through the arrangement, the groove 241 can be filled with the pressure-sensitive material, and the accuracy of pressure touch control is improved.
Further, as shown in fig. 2 and 4, in the embodiment of the present application, the light emitting layer 220 includes a plurality of pixel defining grooves disposed at intervals, the pixels 221 are disposed in the pixel defining grooves, the pixels 221 include first pixels 222 adjacent to the grooves 241 and second pixels 223 not adjacent to the grooves 241, and an area of the first pixels 222 is smaller than an area of the second pixels 223. The pixels 221 are arranged in a matrix array. Since the grooves 241 are disposed between the pixels 221, a space can be provided for the disposition of the grooves 241 by the above-described disposition.
Note that, in the embodiment of the present application, the pixel 221 includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. It should be understood that the pixel 221 may also include other color sub-pixels, and is not limited herein.
Further, the distance of the first pixel 222 from the groove 241 is greater than 10 μm.
Further, as shown in fig. 2, the thin film encapsulation layer 240 is stacked by a first inorganic encapsulation layer 242, an organic encapsulation layer 243, and a second inorganic encapsulation layer 244. The material of the first inorganic encapsulation layer 242 is any one or a combination of more than one of silicon nitride, silicon dioxide, aluminum oxide, titanium dioxide, zirconium dioxide, and the like, and preferably silicon nitride; the thickness of the first inorganic encapsulation layer 242 is 0.5 to 1.5 micrometers, preferably 1 micrometer. The organic encapsulation layer 243 is made of acrylic, epoxy resin or organic silicon, preferably epoxy resin; the thickness of the organic encapsulation layer 243 is 4-20 micrometers, preferably 10 micrometers; the material of the second inorganic encapsulation layer 244 is the same as that of the first inorganic encapsulation layer 242, and is preferably silicon nitride; the thickness of the second inorganic layer 244 is the same as that of the first inorganic layer 242, and is preferably 1 μm.
Further, the display panel 100 further includes a flat layer 800, and the flat layer 800 covers the touch functional layer 300.
Further, as shown in fig. 3 and 5, the manufacturing process of the display panel 100 includes:
step S100, providing a substrate 210;
step S200, sequentially disposing light emitting layers 220 on a substrate 210;
step S300, forming an organic layer 260 on the light emitting layer 220, where the organic layer 260 includes an organic layer body 261 and two protrusions 262 protruding along a side close to the pressure-sensitive electrode 320;
step S400, disposing a cathode layer 230 and a thin film encapsulation layer 240 on the organic layer 260;
step S500, etching the thin film encapsulation layer 240 by a yellow light and etching process to form a groove 241, where the groove 241 is disposed between the two protruding portions 252;
step S600, filling a pressure-sensitive material in the groove 241 by using an ink-jet printing process to form a pressure-sensitive part 250;
step S700, depositing a layer of metal on the pressure-sensitive portion 250, and patterning the metal to form a plurality of touch-sensitive electrodes 310 and a plurality of pressure-sensitive electrodes 320, where the plurality of touch-sensitive electrodes 310 and the plurality of pressure-sensitive electrodes 320 form a touch-sensitive functional layer 300;
step S800, forming a flat layer 800 on the touch functional layer 300 to form the display panel 100.
The embodiment of the present application further provides a display device 10, as shown in fig. 6, the display device 10 includes a display panel 100, a hardware portion 11, and an elastic member 12 disposed between the display panel 100 and the hardware portion 11, where the display panel 100 is the display panel 100 in any of the embodiments.
With the above arrangement, when pressure is applied to the display panel 100, the strain of the pressure sensitive portion 250 increases, and the sensitivity of the pressure sensitive electrode 320 is improved.
It should be noted that: the elastic member 12 may be an elastic material such as foam or rubber.
It should be noted that the display device 10 in the embodiment of the present application may include, but is not limited to, a Personal Computer (PC), a Personal Digital Assistant (PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, a smart watch, an in-vehicle display, and the like.
In summary, in the embodiment of the present application, the two ends of the pressure sensing part 250 are electrically connected to the pressure sensing electrode 320 and the cathode layer 230, respectively, so that the cathode layer 230 is reused, the process flow is simplified, and the cost is reduced; meanwhile, the pressure sensing part 250 is arranged in the groove 241 formed in the thin film encapsulation layer 240, so that the pressure touch function can be integrated on the touch function layer 300, and the integration level of the display panel 100 is improved; meanwhile, in the embodiment of the application, the plurality of touch sensing electrodes 310 are arranged in the planar display area 101, and the plurality of pressure sensing electrodes 320 are arranged in the border display area 102, so that the situation of mistaken touch when a user holds the border display area 102 is avoided, and the user experience is improved. Further, since the plurality of pressure-sensitive electrodes 320 are disposed in the frame display area 102, the display effect of the flat display area 101 is not affected, and the optical uniformity of the flat display area 101 can be ensured.
The display panel and the display device provided by the present application are described in detail above. It should be understood that the exemplary embodiments described herein should be considered merely descriptive to assist in understanding the core concepts of the present application and not limiting the present application. Descriptions of features or aspects in each exemplary embodiment should generally be considered as applicable to similar features or aspects in other exemplary embodiments. While the present application has been described with reference to exemplary embodiments, various changes and modifications may be suggested to one skilled in the art. The present application is intended to cover such changes and modifications as fall within the spirit and scope of the appended claims, and any changes, equivalents, and improvements made therein as fall within the true spirit and scope of the present application are intended to be covered thereby.
Claims (10)
1. The utility model provides a display panel, includes the plane display district and is located the frame display area of plane display district both sides, its characterized in that, display panel includes: the display device comprises a display functional layer and a touch functional layer arranged on the display functional layer;
the touch control function layer comprises a plurality of touch control induction electrodes distributed in the plane display area in an array mode and a plurality of pressure induction electrodes distributed in the frame display area;
the display function layer comprises a substrate, and a light emitting layer, a cathode layer and a thin film packaging layer which are sequentially arranged on the substrate, and the touch function layer is arranged on the thin film packaging layer;
the film packaging layer is provided with a plurality of grooves which are in one-to-one correspondence with the plurality of pressure sensing electrodes,
the display function layer further comprises a plurality of pressure sensing parts which are in one-to-one correspondence with the grooves, the pressure sensing parts are arranged in the grooves, and two ends of each pressure sensing part are electrically connected to the pressure sensing electrode and the cathode layer respectively.
2. The display panel of claim 1, wherein the touch sensing electrodes and the pressure sensing electrodes are disposed in the same layer.
3. The display panel according to claim 1, wherein the display panel further comprises a first control chip, a second control chip, a plurality of touch sensing electrode leads corresponding to the plurality of touch sensing electrodes one to one, and a plurality of pressure sensing electrode leads corresponding to the plurality of pressure sensing electrodes one to one, and both ends of the touch sensing electrode leads are electrically connected to the first control chip and the touch sensing electrodes, respectively; two ends of the pressure sensing electrode lead are respectively and electrically connected with the second control chip and the pressure sensing electrode.
4. The display panel according to claim 1, wherein the pressure-sensitive electrodes include a first pressure-sensitive electrode and a second pressure-sensitive electrode, the bezel display area includes a first bezel display area, and the first pressure-sensitive electrode and the second pressure-sensitive electrode are disposed in the first bezel display area; along a first direction, a center line of the first pressure sensing electrode and a center line of the second pressure sensing electrode coincide.
5. The display panel according to claim 4, wherein the pressure-sensitive electrode further comprises a third pressure-sensitive electrode, the frame display area comprises a second frame display area, and the third pressure-sensitive electrode is disposed in the second frame display area; along a second direction, a center line of the third pressure sensing electrode coincides with a symmetry axis of the first pressure sensing electrode and the second pressure sensing electrode.
6. The display panel according to claim 1, wherein the display function layer further comprises an organic layer disposed between the light emitting layer and the cathode layer, the organic layer comprising an organic layer body and two protrusions protruding along a side close to the pressure-sensitive electrode, the two protrusions being disposed on both sides of the groove.
7. The display panel according to claim 6, wherein the diameter of the convex portion is larger than 20 μm, the height of the convex portion is not smaller than 3 μm, and the taper angle of the convex portion is smaller than 45 °.
8. The display panel according to claim 1, wherein the light emitting layer includes a plurality of pixel defining grooves arranged at intervals, pixels are arranged in the pixel defining grooves, the pixels include a first pixel adjacent to the groove and a second pixel not adjacent to the groove, and an area of the first pixel is smaller than an area of the second pixel.
9. The display panel according to claim 8, wherein the first pixel is more than 10 μm away from the groove.
10. A display device, comprising a display panel, a hardware portion, and an elastic member disposed between the display panel and the hardware portion, wherein the display panel is the display panel according to any one of claims 1 to 9.
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| CN202110035241.XA CN112799532B (en) | 2021-01-12 | 2021-01-12 | Display panel and display device |
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| CN202110035241.XA CN112799532B (en) | 2021-01-12 | 2021-01-12 | Display panel and display device |
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| CN113745291A (en) * | 2021-08-25 | 2021-12-03 | 武汉华星光电半导体显示技术有限公司 | Display panel and mobile terminal |
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