CN112864217B - Display panel and electronic device - Google Patents
Display panel and electronic device Download PDFInfo
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- CN112864217B CN112864217B CN202110360818.4A CN202110360818A CN112864217B CN 112864217 B CN112864217 B CN 112864217B CN 202110360818 A CN202110360818 A CN 202110360818A CN 112864217 B CN112864217 B CN 112864217B
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- display area
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- 239000000758 substrate Substances 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims description 17
- 229910044991 metal oxide Inorganic materials 0.000 claims description 10
- 150000004706 metal oxides Chemical class 0.000 claims description 10
- 238000002834 transmittance Methods 0.000 abstract description 13
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
Classifications
-
- 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
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K59/65—OLEDs integrated with inorganic image sensors
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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
- H10K50/805—Electrodes
- H10K50/82—Cathodes
- H10K50/822—Cathodes characterised by their shape
-
- 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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
Abstract
The application discloses a display panel and electronic equipment belongs to and shows technical field. The display panel includes: the display device comprises a substrate, a display unit and a display unit, wherein the substrate comprises a first display area and a second display area; a plurality of first pixels and a plurality of second pixels, wherein the first pixels are positioned in the first display area, and the second pixels are positioned in the second display area; the second pixel comprises a second light-emitting device, the second light-emitting device comprises a second anode layer, a second organic light-emitting layer and a second cathode layer which are sequentially overlapped on the substrate, the second organic light-emitting layer comprises a plurality of organic light-emitting blocks, the second cathode layer comprises a plurality of cathode blocks, the cathode blocks are arranged at the same interval, and at least one adjacent cathode blocks in the second pixel are connected through transparent conductive connecting blocks. In the embodiment of the application, the second cathode layer of the second display area is divided into a plurality of cathode blocks and connected by the transparent conductive connecting blocks, so that the coverage area of the cathode can be reduced, and the light transmittance of the second display area is improved.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and electronic equipment.
Background
In recent years, with the popularization of full-face screens, the screen duty ratio is continuously improved, and the positions of the front surface of the electronic device for cameras and other sensors are more and more limited. In order to increase the screen duty cycle, an under-screen camera design is gradually adopted. However, the conventional organic light emitting diode (Organic Light Emitted Diode, OLED) display panel has low light transmittance due to the influence of pixels and the like, thereby resulting in poor photographing effect when the under-screen camera photographs through the screen.
Disclosure of Invention
The embodiment of the application aims to provide a display panel and electronic equipment, which can solve the problem that in the prior art, due to the fact that a camera is just opposite to the influence of blocking of pixels of an area, the light transmittance is not high, and therefore the photographing effect of the camera under a screen is poor.
In order to solve the technical problems, the application is realized as follows:
in a first aspect, embodiments of the present application provide a display panel, including:
a substrate comprising a first display region and a second display region, the first display region at least partially surrounding the second display region;
a plurality of first pixels and a plurality of second pixels, wherein the first pixels are positioned in the first display area, and the second pixels are positioned in the second display area;
the second pixel comprises a second light-emitting device, the second light-emitting device comprises a second anode layer, a second organic light-emitting layer and a second cathode layer which are sequentially overlapped on the substrate, the second organic light-emitting layer comprises a plurality of organic light-emitting blocks, the organic light-emitting blocks are arranged at the same interval, the second cathode layer comprises a plurality of cathode blocks, the cathode blocks are arranged at the same interval, the cathode blocks and the organic light-emitting blocks are correspondingly arranged, the orthographic projection of the organic light-emitting blocks on the substrate falls in the orthographic projection of the cathode blocks on the substrate, and at least adjacent cathode blocks in the same second pixel are connected through transparent conductive connecting blocks.
Optionally, adjacent cathode blocks in the same second pixel are connected through a transparent conductive connection block, and cathode blocks of all second pixels are connected through transparent conductive connection blocks.
Optionally, the transparent conductive connection block is made of a transparent metal oxide material, and the transparent metal oxide material is any one of an ITO material and an IZO material.
Optionally, the first pixel includes a first light emitting device, where the first light emitting device includes a first anode layer, a first organic light emitting layer, and a first cathode layer sequentially stacked on the substrate, and the first anode layer and the second anode layer are made of ITO materials.
Optionally, the substrate includes a substrate and a pixel circuit layer located on the substrate, where the pixel circuit layer includes a plurality of first pixel circuits and a plurality of second pixel circuits, the first pixel circuits include a first light emitting device, the first pixel circuits are connected with the first light emitting device, the second pixel circuits are connected with the second light emitting device, the substrate further includes a non-display area, and the second pixel circuits are located in the non-display area.
Optionally, the second organic light emitting layer includes three organic light emitting blocks for emitting red light, green light, and blue light, respectively.
Optionally, the first cathode layers of the first light emitting devices of the plurality of first pixels are connected as a whole.
Optionally, the pixel density of the first display area is greater than the pixel density of the second display area.
Optionally, at least part of the area of the opening area of the second pixel is smaller than the area of the opening area of the first pixel.
In a second aspect, an embodiment of the present application provides an electronic device, where the electronic device includes the display panel according to the first aspect, and further includes a camera, where the camera is located in a region opposite to a second display area of the display panel.
In the embodiment of the application, the second cathode layer of the second display area is divided into a plurality of cathode blocks and connected by the transparent conductive connecting blocks, so that the coverage area of the cathode can be reduced, and the light transmittance of the second display area is improved.
Drawings
Fig. 1 is a schematic diagram of a stacked structure of a second light emitting device according to an embodiment of the present application;
fig. 2 is a schematic diagram of a stacked structure of a display panel according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The display panel and the electronic device provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings by specific embodiments and application scenarios thereof.
Referring to fig. 1 to 2, fig. 1 is a schematic diagram of a stacked structure of a second light emitting device according to an embodiment of the present application, and fig. 2 is a schematic diagram of a stacked structure of a display panel according to an embodiment of the present application. As shown in fig. 1 and fig. 2, the embodiment of the present application provides a display panel, which may be applied to an electronic device, where the display panel includes a substrate 101, where the substrate 101 includes a first display area and a second display area, where the first display area at least partially surrounds the second display area, the second display area may be opposite to a camera 111 of the electronic device, and the display panel further includes a plurality of first pixels and a plurality of second pixels, where the plurality of first pixels are located in the first display area on the substrate 101, the plurality of first pixels may be distributed in an array, the plurality of second pixels are located in the second display area on the substrate 101, and the plurality of second pixels 113 may be distributed in an array. The second pixel includes a second light emitting device including a second anode layer 102, a second organic light emitting layer 103, and a second cathode layer sequentially stacked on the substrate 101; the second organic light emitting layer 103 includes a plurality of organic light emitting blocks 1031, the plurality of organic light emitting blocks 1031 are spaced apart from each other at the same interval, and the second cathode layer includes a plurality of cathode blocks 104, and the plurality of cathode blocks 104 are spaced apart from each other at the same interval; the organic light emitting blocks 1031 and the cathode blocks 104 are disposed correspondingly, and the orthographic projection of the organic light emitting blocks 1031 on the substrate 101 falls within the orthographic projection of the corresponding cathode blocks on the substrate 101, so as to ensure that the organic light emitting blocks 1031 can be normally driven to emit light. In addition, in the embodiment of the present application, at least adjacent cathode blocks 104 in the same second pixel are connected through the transparent conductive connection block 105, so that the cathode blocks 104 are connected into one piece, and remain electrically conductive.
Therefore, the second cathode layer of the second light emitting device in the second display area is patterned to form the plurality of cathode blocks 104, so that the area occupied by the second cathode layer can be reduced, the blocking of the second cathode layer to incident light is reduced, the light transmittance of the second display area is improved, the cathode blocks 104 are connected through the transparent conductive connecting blocks 105, the light transmittance is hardly affected, and all the cathode blocks in the second cathode layer can be connected into a whole to keep electrical conduction.
In some embodiments of the present application, adjacent cathode blocks 104 in the same second pixel are connected by a transparent conductive connection block 105, and the cathode blocks 104 of all second pixels in the second display area are connected by the transparent conductive connection block 105, that is, the cathode blocks 104 between adjacent second pixels are also connected integrally by the transparent conductive connection block 105, so as to be kept electrically conductive.
In other embodiments of the present application, the transparent conductive connection block 105 may be made of a transparent metal oxide material, and the transparent metal oxide material may be any one of Indium Tin Oxide (ITO) and Indium zinc oxide (Indium Zinc Oxide, IZO) to improve the light transmittance of the second display area.
In some embodiments, the first pixel includes a first light emitting device and a first pixel circuit connected to the first light emitting device for driving the first light emitting device to emit light. The first light emitting device is located in the first display area of the substrate 101, and specifically may include a first anode layer, a first organic light emitting layer, and a first cathode layer that are sequentially stacked on the substrate 101, where the first anode layer may be made of the same material as the second anode layer of the second light emitting device, for example, both are made of ITO materials.
As shown in fig. 2, in some embodiments of the present application, the substrate 101 includes a substrate 1011 and a pixel circuit layer on the substrate 1011, the pixel circuit layer including a plurality of first pixel circuits and a plurality of second pixel circuits 1012; the second pixel further includes a second pixel circuit 1012, where the second pixel circuit 1012 is connected to the second pixel circuit 1012 to drive the second pixel circuit to emit light normally, and the plurality of second pixel circuits 1012 are located in the second display area of the substrate 1011 and the second pixel circuit 1012 is located on a side of the second pixel circuit 1012 facing away from the substrate 1011.
In other embodiments of the present application, optionally, in order to further improve the light transmittance of the second display area, the second pixel circuit of the second pixel in the second display area may be separated from the second light emitting device, that is, only the second light emitting device is disposed in the second display area, and the second pixel circuit is disposed in the non-display area of the substrate 1011, so as to avoid the shielding and reflection of the light transmitted by the second pixel circuit to the second display area, so as to improve the photographing effect of the camera opposite to the second display area.
As shown in fig. 1, in some embodiments of the present application, the second organic light emitting layer 103 includes three organic light emitting blocks 1031, and the three organic light emitting blocks 1031 are respectively used to emit red light, green light, and blue light. That is, the second pixel may be composed of three sub-pixels corresponding to the red sub-pixel, the green sub-pixel, and the blue sub-pixel, respectively, and the division of the cathode block 104 in the second cathode layer is related to the organic light emitting block 1031, so that it is necessary to ensure that one organic light emitting block 1031 corresponds to one cathode block 104, so that one cathode block 104, one organic light emitting block 1031, and the second anode layer 102 constitute one sub-pixel, and the organic light emitting block 1031 emits light of a corresponding color by applying a driving voltage through the cathode block 104 and the second anode layer 102. Of course, the above-mentioned example of a classical RGB pixel arrangement in the display panel may actually adopt a pixel arrangement such as RGBG, and the number of the cathode blocks 104 in one second pixel is the same as the number of the sub-pixels in the second pixel, which is not described in one-to-one example.
In other embodiments of the present application, the first cathode layers of the first light emitting devices of the plurality of first pixels are connected together so as to facilitate uniform control; optionally, the first cathode layer of the first pixel and the second cathode layer of the second pixel are also connected into a whole, so as to realize electrical conduction, thereby facilitating uniform control.
In some embodiments, at least part of the traces in the second display area on the substrate 101 may be made of a transparent metal oxide material, so that compared with the traces made of a metal alloy material in the prior art, the use of the transparent metal oxide material can avoid diffraction effects, increase the light transmitted by the second display area, and it is known that the more traces use the transparent metal oxide material, the higher the light transmittance of the second display area will be. Alternatively, the transparent metal oxide may be any one of ITO and IZO. And the wiring in the second display region includes a connection line between the second pixel circuit and the second light emitting device, and may further include a data line and an initialization signal line, etc. passing through the second display region.
In other embodiments of the present application, the pixel density of the first display area is greater than the pixel density of the second display area, that is, the pixel density of the first pixels disposed in the first display area is greater than the pixel density of the second pixels disposed in the second display area. By reducing the pixel density of the second display area, the light transmittance of the second display area can be improved, so that the shooting effect of the camera which is opposite to the second display area is improved. Optionally, the area of the opening area of at least part of the second pixels is smaller than that of the first pixels, and the light transmittance of the second display area can be improved by reducing the design size of the second pixels in the second display area, so that the shooting effect of the camera is improved.
In the embodiment of the application, the second cathode layer of the second display area is divided into a plurality of cathode blocks and connected by the transparent conductive connecting blocks, so that the coverage area of the cathode can be reduced, and the light transmittance of the second display area is improved.
An embodiment of another aspect of the present application further provides an electronic device, where the electronic device includes the display panel according to any one of the embodiments of the present application, and further includes a camera, where the camera is located in a facing area of the second display area of the display panel. Because the second cathode layer of the second display area of the display panel is divided into a plurality of cathode blocks and connected by the transparent conductive connecting blocks, the coverage area of the cathode can be reduced, and the light transmittance of the second display area is improved, so that the shooting effect of the under-screen camera is effectively improved.
The electronic device in the embodiment of the application may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), and the like, and the non-mobile electronic device may be a personal computer (personal computer, PC), a Television (TV), a teller machine, a self-service machine, and the like, and the embodiments of the present application are not limited in particular.
It should be noted that, in this document, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (8)
1. A display panel, comprising:
a substrate comprising a first display region and a second display region, the first display region at least partially surrounding the second display region;
a plurality of first pixels and a plurality of second pixels, wherein the first pixels are positioned in the first display area, and the second pixels are positioned in the second display area;
the second pixel comprises a second light-emitting device, the second light-emitting device comprises a second anode layer, a second organic light-emitting layer and a second cathode layer which are sequentially overlapped on the substrate, the second organic light-emitting layer comprises a plurality of organic light-emitting blocks, the organic light-emitting blocks are arranged at intervals at the same intervals, the second cathode layer comprises a plurality of cathode blocks which are arranged at intervals at the same intervals, the cathode blocks are arranged corresponding to the organic light-emitting blocks, the orthographic projection of the organic light-emitting blocks on the substrate falls in the orthographic projection of the cathode blocks on the substrate, and at least adjacent cathode blocks in the same second pixel are connected through transparent conductive connecting blocks; adjacent cathode blocks in the same second pixel are connected through transparent conductive connecting blocks, and the cathode blocks of all the second pixels are connected through transparent conductive connecting blocks;
the substrate comprises a substrate base plate and a pixel circuit layer positioned on the substrate base plate, wherein the pixel circuit layer comprises a plurality of first pixel circuits and a plurality of second pixel circuits, the first pixel circuits comprise first light emitting devices, the first pixel circuits are connected with the first light emitting devices, the second pixel circuits are connected with the second light emitting devices, the substrate further comprises a non-display area, and the second pixel circuits are positioned in the non-display area.
2. The display panel according to claim 1, wherein the transparent conductive connection block is made of a transparent metal oxide material, and the transparent metal oxide material is any one of an ITO material and an IZO material.
3. The display panel of claim 1, wherein the first pixel comprises a first light emitting device comprising a first anode layer, a first organic light emitting layer, and a first cathode layer sequentially stacked on the substrate, the first anode layer and the second anode layer being made of ITO material.
4. The display panel according to claim 1, wherein the second organic light emitting layer includes three organic light emitting blocks for emitting red light, green light, and blue light, respectively.
5. The display panel of claim 2, wherein the first cathode layers of the first light emitting devices of the plurality of first pixels are integrally connected.
6. The display panel of claim 1, wherein a pixel density of the first display area is greater than a pixel density of the second display area.
7. The display panel of claim 1, wherein at least a portion of the second pixels have an open area that is smaller than an open area of the first pixels.
8. An electronic device comprising the display panel of any one of claims 1-7, further comprising a camera positioned in a region directly opposite a second display region of the display panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110360818.4A CN112864217B (en) | 2021-04-02 | 2021-04-02 | Display panel and electronic device |
| PCT/CN2022/084056 WO2022206835A1 (en) | 2021-04-02 | 2022-03-30 | Display panel and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110360818.4A CN112864217B (en) | 2021-04-02 | 2021-04-02 | Display panel and electronic device |
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| Publication Number | Publication Date |
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| CN112864217A CN112864217A (en) | 2021-05-28 |
| CN112864217B true CN112864217B (en) | 2024-01-16 |
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| CN202110360818.4A Active CN112864217B (en) | 2021-04-02 | 2021-04-02 | Display panel and electronic device |
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| CN (1) | CN112864217B (en) |
| WO (1) | WO2022206835A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112864217B (en) * | 2021-04-02 | 2024-01-16 | 维沃移动通信有限公司 | Display panel and electronic device |
| CN113629207B (en) * | 2021-07-20 | 2023-04-07 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
| CN113809135B (en) * | 2021-09-13 | 2024-03-05 | 武汉天马微电子有限公司 | Display panel and display device |
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| CN112864217B (en) * | 2021-04-02 | 2024-01-16 | 维沃移动通信有限公司 | Display panel and electronic device |
| CN113629207B (en) * | 2021-07-20 | 2023-04-07 | 武汉华星光电半导体显示技术有限公司 | Display panel and display device |
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- 2021-04-02 CN CN202110360818.4A patent/CN112864217B/en active Active
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| CN109801950A (en) * | 2019-01-31 | 2019-05-24 | 厦门天马微电子有限公司 | The production method of display panel, display device and display panel |
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| CN112864217A (en) | 2021-05-28 |
| WO2022206835A1 (en) | 2022-10-06 |
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