CN112768616B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112768616B CN112768616B CN202011631349.7A CN202011631349A CN112768616B CN 112768616 B CN112768616 B CN 112768616B CN 202011631349 A CN202011631349 A CN 202011631349A CN 112768616 B CN112768616 B CN 112768616B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
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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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/311—Flexible OLED
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/549—Organic PV cells
Abstract
The application discloses a display panel and a display device, the display panel is provided with a first display area, a bending area, a second display area and a light transmission area adjacent to the bending area, the display panel comprises a substrate, a first pixel unit, a first light transmission part, a second light transmission part and a first signal line, the first pixel unit, the first light transmission part, the second light transmission part and the first signal line are formed on the substrate and are positioned in the light transmission area, the first pixel unit is arranged along the row direction, the first light transmission part is positioned between two adjacent rows of first pixel units and is positioned between two adjacent rows of first pixel units at the same time, along the first direction, and/or a second light-transmitting part is arranged between adjacent first pixel units along the second direction, the first signal line is used for connecting the first pixel units, in the direction perpendicular to the plane of the substrate, the first signal line is not overlapped with the first light-transmitting part and is at least partially overlapped with the second light-transmitting part, and the area of the first light-transmitting part is larger than that of the second light-transmitting part. The display panel not only has better light transmission performance, but also has good display effect.
Description
Technical Field
The application belongs to the technical field of display equipment, and particularly relates to a display panel and a display device.
Background
The current main technology is to adopt a pixel design different from an AA (active area) in a camera area under a screen opposite to a camera module in a folding screen, reduce the pixel density of the camera area under the screen and reduce the density design of lightproof metal routing at an array section to reduce the loss of incident light, so that the camera module obtains larger incident light brightness, namely, the camera module can obtain sufficient incident light brightness while normally emitting light, and better realize the camera function.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, wherein a light transmission area in the display panel not only has better light transmission performance, but also has good display effect.
In one aspect, the present application provides a display panel having a first display region, a bending region and a second display region, where the first display region and the second display region are respectively located at two sides of the bending region, the first display region includes a light-transmitting region, the light-transmitting region is adjacent to the bending region, the display panel includes a substrate, a first pixel unit, a first light-transmitting portion, a second light-transmitting portion and a first color line, where: the first pixel units are formed on the substrate and located in the light-transmitting area, and are arranged along a first direction and a second direction, and the first direction and the second direction are crossed; a first light-transmitting portion formed on the substrate and located in the light-transmitting region; the first light-transmitting part is positioned between the first pixel units in two adjacent rows along the first direction, and the first light-transmitting part is positioned between the first pixel units in two adjacent columns along the second direction; a second light-transmitting portion formed on the substrate; the second light-transmitting part is arranged between the adjacent first pixel units along the first direction, and/or the second light-transmitting part is arranged between the adjacent first pixel units along the second direction; the first signal line is formed on the substrate, positioned in the light-transmitting area and used for connecting the first pixel unit; in a direction perpendicular to the plane of the substrate, the first signal line is not overlapped with the first light-transmitting part, the first signal line is at least partially overlapped with the second light-transmitting part, and the area of the first light-transmitting part is larger than that of the second light-transmitting part.
On the other hand, the application also provides a display device, which comprises the display panel provided by the first aspect of the application.
Compared with the prior art, the foldable display panel provided by the embodiment of the application comprises a light transmission area adjacent to a bending area, the light transmission area has high light transmission performance, and the light transmission area adopts a design comprising a first light transmission part and a second light transmission part, wherein the first light transmission part is positioned at the intersection point of diagonal lines between four adjacent first pixel units which are arranged in a rectangular manner in the first pixel units which are arranged in rows and columns, so that the light transmission of the area between adjacent vertex angles of the four first pixel units which are arranged in a rectangular manner can be enhanced, each first light transmission part is not overlapped with a first signal line for connecting the first pixel units in a direction vertical to a substrate, so that the light transmission of the first light transmission part is better, the second light transmission part is positioned between the first pixel units in the adjacent rows, and/or is positioned between the first pixel units in the adjacent columns, thereby can strengthen the light transmissivity between the adjacent first pixel unit, because the display panel that this application provided is for can taking place the display panel of buckling in the bending region, and the light transmission region is adjacent with the bending region, thereby when buckling to display panel, stretch first printing opacity portion and second printing opacity portion at the effect of bending force, make the area increase of first printing opacity portion and second printing opacity portion, thereby make the light transmission area increase in this printing opacity region, the luminousness promotes, and then can make the sensitization module relative with the printing opacity region obtain better effect, after the bending recovers, the area of first printing opacity portion and second printing opacity portion resumes, thereby make the interval between each first pixel unit resume, in order to obtain better display effect, the display panel that this application provided not only has the light transmissivity of preferred and has good display effect simultaneously.
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 of the present application will be briefly described below, and it is obvious that the drawings described below are only 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 structural diagram of an unfolded state of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a structural diagram of the display panel shown in FIG. 1 in a bent state;
FIG. 3 is a schematic view of a partial structure of a light-transmitting region of the display panel shown in FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along the line A-A in FIG. 3;
FIG. 5 is a schematic view of another partial structure of a light-transmitting region of the display panel shown in FIG. 1;
FIG. 6 is a schematic view of another partial structure of a light-transmitting region of the display panel shown in FIG. 1;
FIG. 7 is a schematic view of a partial structure of a light-transmitting region of the display panel shown in FIG. 1;
FIG. 8 is a cross-sectional view along B-B of FIG. 7;
fig. 9 is a schematic structural diagram of an unfolded state of a display device according to an embodiment of the present application.
In the drawings:
1-a first display area; 2-a light-transmitting region; 21-a first light-transmitting portion; 22-a first pixel cell; 221-subpixels; 23-a second light-transmitting portion; 3-a bending region; 4-a second display area; 5-a substrate; 6-an active layer; 7-a first insulating layer; 8-a grid; 9-a first polar plate; 10-a second insulating layer; 11-a second polar plate; 12-a third insulating layer; 13-a source electrode; 14-a drain electrode; 15-a planarization layer; 16-an anode layer, a light emitting layer and a cathode layer; 17-a pixel definition layer; 18-a first flexible light transmitting layer; 19-a second flexible light transmitting layer; 20-a first signal line; 21-a first frame; 22-a second frame; 23-a first housing; 24-a second housing; 25-hinge structure.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For better understanding of the present application, the following detailed description is made with reference to fig. 1 to 8 for a display panel and a display device according to an embodiment of the present application.
Referring to fig. 1 to 4 together, an embodiment of the present application provides a display panel, which includes a first display area 1, a bending area 3, and a second display area 4, wherein the first display area 1 and the second display area 4 are respectively located at two sides of the bending area 3, the first display area 1 includes a light-transmitting area 2, and the light-transmitting area 2 is adjacent to the bending area 3. The display panel comprises a substrate 5, a first pixel unit 22, a first light-transmitting part 21, a second light-transmitting part 23 and a first signal line 20, wherein the first pixel unit 22 is formed on the substrate 5 and located in the light-transmitting area 2, the first pixel unit 22 is arranged along a first direction x and a second direction y, and the first direction x and the second direction y are crossed; the first light transmission portion 21 is formed on the substrate 5 and located in the light transmission region 2; along the first direction x, the first light-transmitting portion 21 is located between two adjacent rows of first pixel units 22, and along the second direction y, the first light-transmitting portion 21 is located between two adjacent columns of first pixel units 22; the second light-transmitting portion 23 is formed on the substrate 5; second light-transmitting portions 23 are arranged between adjacent first pixel units 22 along the first direction x, and/or second light-transmitting portions 23 are arranged between adjacent first pixel units 22 along the second direction y; a first signal line 20 formed on the substrate 5 and located in the light-transmitting region 2 for connecting to a first pixel unit 22; in a direction perpendicular to the plane of the substrate 5, the first signal line 20 does not overlap the first light-transmitting portion 21, and the first signal line 20 at least partially overlaps the second light-transmitting portion 23, and the area of the first light-transmitting portion 21 is larger than that of the second light-transmitting portion 23.
The foldable display panel provided by the embodiment of the application comprises a light-transmitting area 2 adjacent to a bending area 3, the light-transmitting area 2 has high light-transmitting performance, and the light-transmitting area 2 adopts a design comprising a first light-transmitting portion 21 and a second light-transmitting portion 23, wherein the first light-transmitting portion 21 is located at an intersection point of diagonal lines between adjacent four first sub-pixels arranged in a rectangular manner in the first sub-pixels 22 arranged in rows and columns, so that the light-transmitting performance of the area between adjacent vertex angles of the four first sub-pixels 221 arranged in a rectangular manner can be enhanced, each first light-transmitting portion 21 is not overlapped with a first signal line 20 for connecting a first pixel unit 22 in a direction perpendicular to a substrate 5, so that the light-transmitting performance of the first light-transmitting portion 21 is better, the second light-transmitting portion 23 is located between the first sub-pixels 221 in adjacent rows, and/or located between the first sub-pixels 221 in adjacent columns, therefore, the light transmittance between the adjacent first sub-pixels 221 can be enhanced, since the display panel provided by the present application is a display panel that can be bent in the bending region 3, and the light-transmitting region 2 is adjacent to the bending region 3, when the display panel is bent, the first light transmission part 21 and the second light transmission part 23 are stretched by the bending force, so that the areas of the first light transmission part 21 and the second light transmission part 23 are increased, thereby increasing the light-transmitting area in the light-transmitting region 2 and improving the light transmittance, and further obtaining a better effect of the photosensitive module opposite to the light-transmitting region 2, after the restoration by bending, the areas of the first and second light transmission portions 21 and 23 are restored, so that the pitch between the respective first sub-pixels 221 is restored, in order to obtain better display effect, the display panel that this application provided not only has the light transmissivity of preferred and has good display effect simultaneously.
In one possible embodiment, as shown in fig. 3, the second light-transmitting portions 23 may be all disposed between the first sub-pixels 221 arranged along the first direction x.
The first display area 1 and the second display area 4 are arranged along the first direction x, the second light transmission part 23 is completely arranged between the first sub-pixels 221 arranged along the first direction x, the first light transmission part 21 and the second light transmission part 23 are not adjacent to each other in the first direction x, and in the bending process, the first light transmission part 21 and the second light transmission part 23 are not mutually interfered in stretching, so that the deformation of the first light transmission part 21 and the second light transmission part 23 can be maximized, and the light transmission effect of the display panel light transmission area 2 is better.
In another possible embodiment, as shown in fig. 5, the second light-transmitting portions 23 may be all disposed between the first sub-pixels 221 arranged along the second direction y.
The first display region 1 and the second display region 4 are arranged along the first direction x, the second light transmission portions 23 are all arranged between the first sub-pixels 221 arranged along the second direction y, and in the process of bending, under the action of bending force along the first direction x, the second light transmission portions 23 located between the first sub-pixels 221 are stretched along the first direction x, so that the light transmission area of each second light transmission portion 23 is increased, each first light transmission portion 21 is stretched along the first direction x, the light transmission area of each first light transmission portion 21 is increased, and the light transmission effect of the display panel light transmission region 2 is enhanced.
In another possible embodiment, as shown in fig. 6, a portion of the first sub-pixels 221 arranged along the first direction x may be disposed between the first sub-pixels 221 arranged along the second direction y, and the effect is similar to that of the above-mentioned solution, and the description of the present application is omitted.
In another possible embodiment, as shown in fig. 7, the second light-transmitting portions 23 are formed between the first sub-pixels 221 arranged along the first direction x and between the first sub-pixels 221 arranged along the second direction y, and since a space between adjacent first sub-pixels 221 is smaller than a space between adjacent vertex angles of the four first sub-pixels 221 in a rectangular distribution, an area of an orthogonal projection of the second light-transmitting portion 23 on the substrate 5 is smaller than an area of an orthogonal projection of the first light-transmitting portion 21 on the substrate 5, and the second light-transmitting portion 23 has an effect of auxiliary light transmission, which can further improve light transmittance of the display panel.
In a possible embodiment, the orthographic projection shapes of the first light transmission part 21 and the second light transmission part 23 on the substrate 5 are one of a diamond shape, a circle shape, a rectangle shape and a rounded rectangle shape, the orthographic projection shapes of the first light transmission part 21 and the second light transmission part 23 on the substrate 5 can be the same or different, when the orthographic projection shapes of the first light transmission part 21 and/or the second light transmission part 23 on the substrate 1 are diamond shapes, one diagonal line of the diamond shape can be set to be parallel to the first direction x, so that the first light transmission part and/or the second light transmission part can be effectively stretched when the bending region 3 is bent, and the light transmittance of the display panel can be greatly improved; when the manufacturing conditions are satisfied, the shapes of the orthographic projections of first light transmission portion 21 and second light transmission portion 23 on substrate 3 may be other shapes, and the present invention is not particularly limited.
In one possible embodiment, as shown in fig. 4 and 8, the display panel further includes:
a drive circuit and an organic light emitting element; the drive circuit comprises a thin film transistor and a storage capacitor; the storage capacitor comprises a first plate 9 and a second plate 11; the thin film transistor includes a gate electrode 8, a source electrode 13, and a drain electrode 14; the organic light-emitting element includes an anode, a light-emitting layer, and a cathode;
in a direction away from the substrate 5, the display panel further comprises an active layer 6, a first metal layer, a second metal layer, a third metal layer, an anode layer 16, a light emitting layer, and a cathode layer (not shown); the first metal layer comprises a grid 8 of the thin film transistor and a first plate 9 of the storage capacitor; the second metal layer comprises the second plate 11 of the storage capacitor; the third metal layer includes a source electrode 13 and a drain electrode 14 of the thin film transistor;
and a first insulating layer 7 between the active layer 6 and the first metal layer, a second insulating layer 10 between the first metal layer and the second metal layer, a third insulating layer 12 between the second metal layer and the third metal layer, a planarization layer 15 between the third metal layer and the anode layer 16, and a pixel defining layer 17 on a side of the anode layer 16 remote from the substrate 5;
the first light-transmitting portion 21 penetrates at least one of the active layer 6, the first metal layer, the second metal layer, the third metal layer, the anode layer 16, the light-emitting layer, the cathode layer, the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15, and the pixel defining layer 17;
the second light-transmitting portion 23 penetrates at least one of the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15, and the pixel defining layer 17.
In a possible embodiment, as shown in fig. 4, the first light-transmitting portion 21 penetrates through the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15 and the pixel defining layer 17, so as to penetrate through all the film layers of the region where the first sub-pixel 221 is not disposed, so that the light-transmitting effect of the first light-transmitting portion 21 is better; in other possible embodiments, the first transparent portion 21 may further penetrate at least one of the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15, and the pixel defining layer 17, and when penetrating two or more film layers, may penetrate adjacent film layers for convenience of preparation.
In a possible embodiment, as shown in fig. 8, the second light-transmitting portion 23 penetrates through the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15 and the pixel defining layer 17, so as to penetrate through all the film layers of the region where the first sub-pixel 221 is not disposed, so that the light-transmitting effect of the second light-transmitting portion 23 is better; in other possible embodiments, the second light-transmitting portion 23 may also penetrate at least one of the first insulating layer 7, the second insulating layer 10, the third insulating layer 12, the planarization layer 15, and the pixel defining layer 17, and when penetrating two or more film layers, may penetrate adjacent film layers for convenience of preparation.
In one possible embodiment, as shown in fig. 4 and 8, first light-transmitting portion 21 is filled with first flexible light-transmitting layer 18, and/or second light-transmitting portion 23 is filled with second flexible light-transmitting layer 19.
In the above embodiment, the first light-transmitting portion 21 is filled with the first flexible light-transmitting layer 18, and the first flexible light-transmitting layer 18 can prevent water and oxygen from entering the display panel through the first light-transmitting portion 21, so that the sealing performance of the display panel can be ensured, and the corrosion of water and oxygen to each film layer in the display panel can be avoided, meanwhile, because the first flexible light-transmitting layer 18 has flexibility, when the bending region 3 of the display panel is bent, the first flexible light-transmitting layer 18 filled in the first light-transmitting portion 21 is stretched along with the deformation of the first light-transmitting portion 21 under the action of the bending force, and after the bending force disappears and the display panel is restored, the first flexible light-transmitting layer 18 automatically restores, so that the first light-transmitting portion 21 is effectively filled, and the bending effect is not affected.
In the above embodiment, the second flexible light-transmitting layer 19 is filled in the second light-transmitting portion 23, and the second flexible light-transmitting layer 19 can prevent water and oxygen from entering the display panel through the second light-transmitting portion 23, so that the sealing performance of the display panel can be ensured, and the corrosion of water and oxygen to each film layer in the display panel can be avoided, meanwhile, because the second flexible light-transmitting layer 19 has flexibility, when the bending region 3 of the display panel is bent, the second flexible light-transmitting layer 19 filled in the second light-transmitting portion 23 is stretched along with the deformation of the second light-transmitting portion 23 under the effect of the bending force, and after the bending force disappears and the display panel is restored, the second flexible light-transmitting layer 19 automatically restores, so that the second light-transmitting portion 23 is effectively filled, and the bending effect is not affected. The first light transmission part 21 and the second light transmission part 23 can be completed in one process, so that the preparation process can be saved, the cost can be saved, and the practicability is greatly enhanced.
In one possible embodiment, as shown in fig. 8, the first signal line 20 is located between the second flexible transparent layer 19 and the substrate 5, and the first signal line 20 is located in at least one of the first metal layer, the second metal layer, and the third metal layer.
In the above embodiments, the first signal line 20 is disposed between the second flexible transparent layer 19 and the substrate 5, and the second flexible transparent layer 19 can effectively protect the first metal line from external force, and prevent the first metal line from being oxidized, thereby improving the service life of the display panel.
The first signal line 20 is located in at least one of the first metal layer, the second metal layer, and the third metal layer, and the first flexible light-transmitting layer 18 is located on a side of the first signal line 20 away from the substrate 5, specifically, the film layers on the side of the first signal line 20 away from the substrate 5 may be removed and filled in the second flexible light-transmitting layer 19, so that the second flexible light-transmitting layer 19 may directly contact with the first signal line 20, thereby achieving a better light-transmitting effect.
In a possible embodiment, when the first signal lines 20 are located in two or three of the first metal layer, the second metal layer, and the third metal layer, the film layer between each first signal line 20 and the substrate 5 may be removed, and each first signal line 20 is directly contacted with the substrate 5, the adjacent first signal lines 20 are spaced apart to be insulated from each other, and one side of each first signal line 20 away from the substrate 5 is directly contacted with the second flexible transparent layer 19, so that the position opposite to the second light-transmitting portion 23 only includes the substrate 5, the first signal line 20, and the second flexible transparent layer 19, thereby achieving a better light-transmitting effect. In a possible embodiment both the first and the second flexible light transmitting layer 18, 19 are of a telescopically deformable organic material.
Specifically, the material of the first flexible light-transmitting layer 18 and the second flexible light-transmitting layer 19 is at least one of siloxane, polysiloxane, epoxy acrylic resin, acrylate monomer, and a silicon-based organic film material.
First flexible euphotic layer 18 and the flexible euphotic layer 19 of second adopt above-mentioned material can guarantee the ability of scalable deformation on the one hand, and on the other hand can guarantee high light transmissivity to promote the luminousness of display panel printing opacity region 2, the material of first flexible euphotic layer 18 and the flexible euphotic layer 19 of second is not limited to above-mentioned material, can also adopt other materials that possess flexibility and high permeability, and this application does not limit. The other transparent material layers in the display panel, for example, the planarization layer 15, may be made of the above-mentioned material, and have high transparency and flexibility, thereby contributing to increase of the light transmittance of the light-transmitting region 2 and coping with the bending force when the bending region 3 is bent.
The substrate 5 in the embodiment of the present application may be formed of a polymer material such as glass, Polyimide (PI), Polycarbonate (PC), polyase sulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), Polyarylate (PAR), or glass Fiber Reinforced Plastic (FRP). Preferably, a transparent material is used.
The substrate 5 in the embodiment of the present application may also be a flexible substrate 5, which is formed of a polymer with a small thickness, such as polyimide. The substrate 5 may further include a buffer layer, which may include a multi-layered inorganic and organic layer stack structure to block oxygen and moisture, prevent moisture or impurities from diffusing through the substrate 5, and provide a flat surface on the upper surface of the substrate 5, and the detailed structure thereof is not described herein.
In a possible embodiment, the first display region 1 and the second display region 4 include a plurality of second pixel units, and the distribution density of the first pixel units 22 is the same as that of the second pixel units when the bending region 3 is in the non-bending state.
In the display panel provided in the embodiment of the application, the first display area 1 and the second display area 4 both include a plurality of second pixel units, the distribution density of the second pixel units in the first display area 1 is the same as the distribution density of the second pixel units in the second display area 4, the light-transmitting area 2 includes a plurality of first pixel units 22, and the densities of the first pixel units 22 and the second pixel units in the bending area 3 of the display panel are the same when the bending area is not bent, so that the display difference between the light-transmitting area 2 and the first display area 1 and the second display area 4 can be eliminated, the uniformity of the display effect of the display panel can be ensured, and the display quality can be improved; when the bending region 3 to display panel is bent, the first light transmission part 21 and the second light transmission part 23 of the light transmission region 2 are deformed under the effect of bending force, namely, the area of the light transmission part between the pixels in the light transmission region 2 is increased, and the distance between the first pixel units 22 is increased, so that the area of the light transmission part of the light transmission region 2 can be greatly increased, the light transmission of the light transmission region 2 is improved, and the effect of the photosensitive module which is positioned under the display panel and is opposite to the light transmission region 2 is better. Therefore, in the display panel that this application provided, show under the condition of not buckling, first display area 1, second display area 4, light transmission area 2's pixel distribution density is the same to can reach good display effect, when needs use the sensitization module, can buckle display panel's the regional 3 of buckling, thereby can promote light transmission area 2's luminousness, make the sensitization module reach good effect.
The sensitization module in this application can be for camera module or other sensitization modules for example fingerprint identification module etc. this application does not limit, when sensitization module is the camera module, the daylighting effect that the display panel who adopts this application to provide can promote the camera to promote the effect of making a video recording of camera, when sensitization module is fingerprint identification module, the display panel who adopts this application to provide can promote display panel's fingerprint identification sensitivity, thereby can reach better touch-control and experience.
The present application further provides a display device, as shown in fig. 9, including any one of the display panels provided in the above technical solutions.
The display device in the embodiment of the present application further includes a first frame 21 and a second frame 22, the first frame 21 is disposed on a side of the display panel where the first display area 1 deviates from the light-emitting surface, the second frame 22 is disposed on a side of the display panel where the second display area 2 deviates from the light-emitting surface, the display device further includes a first housing 23 for accommodating the first frame 21 and a second housing 24 for accommodating the second frame 22, the bending area 3 is provided with a hinge structure 25, the first housing 23 and the second housing 24 are connected by the hinge structure 25, a bending radius of the hinge structure 25 is 1mm to 10mm, that is, a bending radius of the bending area 3 is 1mm to 10mm, as shown in fig. 2 and fig. 9.
The display device can also adopt other structures to realize the fixation and bending of the display panel, and the application is not limited.
Above-mentioned display device can be used to among the mobile terminal, can expand in order to promote mobile terminal's display area when using, when carrying, collapsible so that carry, adopts the display panel that this application provided among this display device to can not influence the display effect when promoting the sensitization module effect.
As will be apparent to those skilled in the art, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, the present application is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
Claims (10)
1. A display panel having a first display region, a bending region and a second display region, the first display region and the second display region being respectively located at two sides of the bending region, the first display region including a light-transmitting region, wherein the light-transmitting region is adjacent to the bending region, the display panel comprising:
a substrate;
the first pixel units are formed on the substrate and located in the light-transmitting area, and are arranged along a first direction and a second direction, and the first direction and the second direction are crossed;
a first light-transmitting portion formed on the substrate and located in the light-transmitting region; the first light-transmitting part is positioned between the first pixel units in two adjacent rows along the first direction, and the first light-transmitting part is positioned between the first pixel units in two adjacent columns along the second direction;
a second light-transmitting portion formed on the substrate; the second light-transmitting part is arranged between the adjacent first pixel units along the first direction, and/or the second light-transmitting part is arranged between the adjacent first pixel units along the second direction;
the first signal line is formed on the substrate, is positioned in the light-transmitting area and is used for connecting the first pixel unit; in a direction perpendicular to the plane of the substrate, the first signal line is not overlapped with the first light-transmitting part, and the first signal line is at least partially overlapped with the second light-transmitting part, and the area of the first light-transmitting part is larger than that of the second light-transmitting part;
when the display panel is bent, the first light transmission part and the second light transmission part are stretched under the action of the bending force, so that the areas of the first light transmission part and the second light transmission part are increased, the light transmission area in the light transmission area is increased, the light transmission rate is improved, and after the display panel is bent and restored, the areas of the first light transmission part and the second light transmission part are restored, so that the space between the first sub-pixels is restored, and a better display effect is obtained.
2. The display panel according to claim 1, wherein the display panel further comprises:
a drive circuit and an organic light emitting element; the drive circuit comprises a thin film transistor and a storage capacitor; the storage capacitor comprises a first polar plate and a second polar plate; the thin film transistor comprises a grid electrode, a source electrode and a drain electrode; the organic light emitting element includes an anode, a light emitting layer, and a cathode;
the display panel further comprises an active layer, a first metal layer, a second metal layer, a third metal layer, an anode layer, a light emitting layer and a cathode layer along the direction far away from the substrate; the first metal layer comprises a grid electrode of the thin film transistor and a first plate electrode of the storage capacitor; the second metal layer comprises a second plate of the storage capacitor; the third metal layer comprises a source electrode and a drain electrode of the thin film transistor;
the first insulating layer is positioned between the active layer and the first metal layer, the second insulating layer is positioned between the first metal layer and the second metal layer, the third insulating layer is positioned between the second metal layer and the third metal layer, the planarization layer is positioned between the third metal layer and the anode layer, and the pixel defining layer is positioned on one side, far away from the substrate, of the anode layer;
the first light-transmitting portion penetrates at least one of the active layer, the first metal layer, the second metal layer, the third metal layer, the anode layer, the light-emitting layer, the cathode layer, a first insulating layer, the second insulating layer, the third insulating layer, the planarization layer, and the pixel defining layer;
the second light-transmitting portion penetrates at least one of the first insulating layer, the second insulating layer, the third insulating layer, the planarization layer, and the pixel defining layer.
3. The display panel according to claim 2, wherein the first light-transmitting portion is filled with a first flexible light-transmitting layer, and/or wherein the second light-transmitting portion is filled with a second flexible light-transmitting layer.
4. The display panel according to claim 3, wherein the first signal line is located between the second flexible light-transmissive layer and the substrate, and wherein the first signal line is located in at least one of the first metal layer, the second metal layer, and the third metal layer.
5. The display panel according to claim 3, wherein the first and second flexible light-transmitting layers are made of an organic material capable of being deformed telescopically.
6. The display panel according to claim 5, wherein the first and second flexible light-transmitting layers are made of at least one of siloxane, polysiloxane, epoxy acrylic resin, acrylate monomer, and silicon-based organic film.
7. The display panel according to claim 1, wherein the first display region and the second display region include a plurality of second pixel units, and when the bent region is in an unfolded state, a distribution density of the first pixel units is the same as a distribution density of the second pixel units.
8. The display panel according to claim 1, wherein the bending radius of the bending region is 1mm to 10 mm.
9. The display panel according to claim 1, wherein the first display region and the second display region are arranged in the first direction, and the second light-transmitting portions are provided between the first pixel units adjacent in the first direction and between the first light-transmitting portions adjacent in the second direction.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
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| CN113540192B (en) * | 2021-06-30 | 2023-02-24 | 武汉天马微电子有限公司 | Display panel and display device |
| CN113780179B (en) * | 2021-09-13 | 2023-08-29 | 武汉华星光电半导体显示技术有限公司 | Flexible display module and display terminal |
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