WO2022206832A1 - Panneau d'affichage et dispositif électronique - Google Patents
Panneau d'affichage et dispositif électronique Download PDFInfo
- Publication number
- WO2022206832A1 WO2022206832A1 PCT/CN2022/084052 CN2022084052W WO2022206832A1 WO 2022206832 A1 WO2022206832 A1 WO 2022206832A1 CN 2022084052 W CN2022084052 W CN 2022084052W WO 2022206832 A1 WO2022206832 A1 WO 2022206832A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- display area
- light
- pixel
- display panel
- base substrate
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims description 9
- 229910044991 metal oxide Inorganic materials 0.000 claims description 9
- 150000004706 metal oxides Chemical class 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 238000002834 transmittance Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 4
- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
Images
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
- H10K59/50—OLEDs integrated with light modulating elements, e.g. with electrochromic elements, photochromic elements or liquid crystal elements
-
- 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
- H10K50/852—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
-
- 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
-
- 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
Definitions
- the present application belongs to the field of display technology, and in particular relates to a display panel and an electronic device.
- the screen-to-body ratio continues to increase, leaving more and more limited positions for cameras and other sensors on the front surface of electronic devices.
- the under-screen camera design is gradually being adopted.
- the existing organic light-emitting diode (OLED) display panel has low light transmittance due to the influence of the circuit in the panel, which leads to the poor photographing effect of the under-screen camera when taking pictures through the screen. .
- the purpose of the embodiments of the present application is to provide a display panel and an electronic device, which can solve the problem that the light transmittance of the existing display panel is not high, resulting in poor shooting effect of the under-screen camera.
- an embodiment of the present application provides a display panel, including:
- a base substrate comprising a first display area and a second display area, the first display area at least partially surrounds the second display area;
- a plurality of first pixels and a plurality of second pixels a plurality of the first pixels are located in the first display area, the second pixels include a second light-emitting device, and the second light-emitting device is located in the second display area Area;
- An electrochromic layer located between the second light-emitting device and the base substrate, and the electrochromic layer can be switched between a colored state and a transparent state to transmit or reflect light .
- the second pixel further includes a second pixel circuit, the second pixel circuit is connected to the second light-emitting device, the base substrate further includes a non-display area, and the second pixel circuit is located at the the non-display area.
- At least part of the wires in the second display area are made of transparent metal oxide material.
- the second light-emitting device includes an anode, a cathode, and an organic light-emitting layer located between the anode and the cathode, the anode is located in the second display area of the base substrate, and the electrochromic A layer is located between the anode and the base substrate.
- the anode is made of transparent metal oxide material.
- the first pixel includes a first pixel circuit and a first light-emitting device, the first pixel circuit is connected to the first light-emitting device, and the first pixel circuit is located on the first side of the base substrate.
- the first light emitting device is located on a side of the first pixel circuit away from the base substrate.
- a reflective layer is further disposed between the first pixel circuit and the base substrate.
- the pixel density of the first display area is greater than the pixel density of the second display area.
- the area of the opening area of at least part of the second pixel is smaller than the area of the opening area of the first pixel.
- an embodiment of the present application provides an electronic device, the electronic device includes the display panel according to the first aspect, and further includes a camera, where the camera is located in an area facing the second display area of the display panel .
- the light transmission in the second display area can be improved without affecting the microcavity effect of the display panel.
- the under-screen camera is set in the second display area facing the area, the imaging effect of the under-screen camera can be effectively improved.
- FIG. 1 is a schematic diagram of a stacked structure of a display panel according to an embodiment of the present application
- FIG. 2 is a schematic diagram of a pixel arrangement of a display panel according to an embodiment of the present application
- FIG. 3 is a schematic structural diagram of a first pixel and a second pixel according to an embodiment of the present application.
- first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and distinguish between “first”, “second”, etc.
- the objects are usually of one type, and the number of objects is not limited.
- the first object may be one or more than one.
- “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
- FIG. 1 is a schematic diagram of a stacked structure of a display panel provided by an embodiment of the present application
- FIG. 2 is a schematic diagram of a pixel arrangement of a display panel provided by an embodiment of the present application.
- the display panel provided in the embodiment of the present application is applied to an electronic device.
- the display panel includes a base substrate 101, and the base substrate 101 includes a first display area and a second display area. A display area at least partially surrounds the second display area, and the second display area may be disposed opposite to the camera 111 of the electronic device.
- the display panel further includes a plurality of first pixels 112 and a plurality of second pixels 113 , wherein, A plurality of the first pixels 112 are located in the first display area on the base substrate 101, the plurality of the first pixels 112 may be distributed in an array, the second pixels 113 include a second light emitting device, and a plurality of the first pixels 112 may be arranged in an array.
- the second light emitting devices of the two pixels 113 are located in the second display area on the base substrate 101 , and the second light emitting devices of a plurality of the second pixels 113 may be distributed in an array.
- the display panel further includes an electrochromic layer 107, the electrochromic layer 107 is disposed between the second light-emitting device and the base substrate 101 in the second display area, and the electrochromic layer 107 adopts an electrochromic layer.
- the optical properties (reflectivity, transmittance, absorptivity, etc.) of the electrochromic material will undergo a stable and reversible color change under the action of an external electric field.
- the electrochromic layer 107 in the embodiment of the present application can be Switching between the colored state and the transparent state, specifically, when the electrochromic layer 107 is in the colored state, the electrochromic layer 107 can reflect the light irradiated thereon, and when the electrochromic layer 107 is in the transparent state In this case, the electrochromic layer 107 can transmit light impinging thereon.
- the electrochromic layer 107 can be controlled to be in a colored state, and the first When the second light-emitting device in the second display area emits light, the light emitted to the side of the base substrate 101 will be reflected by the electrochromic layer 107 and then emitted from the front side of the display panel, thereby ensuring the display effect of the second display area;
- the electrochromic layer 107 can be controlled to be in a transparent state, and the ambient light incident from the display panel will pass through the electrochromic layer 107 and irradiate the camera 111, thereby increasing the transmittance of external light. , and then improve the camera effect of the under-screen camera.
- the second light-emitting device in the second display area emits light, a part of the light is emitted directly from the front of the display panel, and the other part of the light is emitted to the lining
- the side of the base substrate 101 is reflected by the electrochromic layer 107.
- the electrochromic layer disposed between the base substrate 101 and the second light-emitting device can also The light is reflected, so that the phenomenon of microcavity effect can be generated, so as to ensure the display effect of the display panel.
- the light transmission in the second display area can be improved without affecting the microcavity effect of the display panel.
- the under-screen camera is set in the second display area facing the area, the imaging effect of the under-screen camera can be effectively improved.
- FIG. 3 is a schematic structural diagram of a first pixel and a second pixel according to an embodiment of the present application.
- the second pixel 113 further includes a second pixel circuit 1131 , and the second pixel circuit 1131 is connected to the second light emitting device 1132 to drive the second light emitting device 1132 to emit light.
- the base substrate 101 also includes a non-display area.
- the second pixel circuit 1131 of the second pixel 113 in the second display area is separated from the second light emitting device 1132, that is, only
- the second light-emitting device 1132 is arranged in the second display area
- the second pixel circuit 1131 is arranged in the non-display area, so as to avoid the blocking and reflection of the light transmitted by the second pixel circuit 1131 to the second display area, so as to improve the compatibility with the second display area.
- the traces 108 in the second display area located on the base substrate 101 are made of transparent metal oxide material, compared with the traces made of metal alloy materials in the prior art
- transparent metal oxide materials can avoid the diffraction effect and increase the light transmitted through the second display area. It can be known that the more traces are made of transparent metal oxide materials, the light transmittance of the second display area will also be reduced. higher.
- the transparent metal oxide may be any one of indium tin oxide (Indium tin oxide, ITO) and indium zinc oxide (Indium Zinc Oxide, IZO).
- the second display area wiring 108 includes a connection line between the second pixel circuit 1131 and the second light emitting device 1132, and may also include a data line and an initialization signal line passing through the second display area.
- the second light-emitting device 1132 includes a second anode 109 , a cathode 105 and a second organic light-emitting layer 110 located between the second anode 109 and the cathode 105 , wherein the second The anode 109 is located in the second display area of the base substrate 101 , and the electrochromic layer 107 is located between the second anode 109 and the base substrate 101 .
- the second anode 109 is made of a transparent metal oxide material, and specifically, any one of indium tin oxide (Indium tin oxide, ITO) and indium zinc oxide (Indium Zinc Oxide, IZO) can be selected.
- the second pixel may include a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel, the second red sub-pixel, the second green sub-pixel and the second blue sub-pixel
- the sub-pixels can share the cathode 105
- the second organic light-emitting layer 110 includes a second red organic light-emitting layer 1101, a second green organic light-emitting layer 1102, and a second blue organic light-emitting layer 1103, and the second red sub-pixel is composed of a second anode 109.
- the second red organic light-emitting layer 1101 and the cathode 105 are composed
- the second green sub-pixel is composed of the second anode 109
- the second blue sub-pixel is composed of the second anode 109
- the second The blue organic light-emitting layer 1103 and the cathode 105 are constituted.
- the electrochromic layer 107 can also be patterned to form a plurality of electrochromic blocks separated from each other corresponding to the second red sub-pixel, the second green sub-pixel and the second blue sub-pixel.
- the first pixel 112 includes a first pixel circuit 1121 and a first light-emitting device 1122, and the first pixel circuit 1121 is connected to the first light-emitting device 1122 to drive the first light-emitting device 1122 to emit light.
- Both the pixel circuit 1121 and the first light-emitting device 1122 are located in the first display area of the base substrate 101.
- the first pixel circuit 1121 is located in the first display area of the base substrate, and the first light-emitting device 1122 is located in the first pixel The side of the circuit 1121 facing away from the base substrate 101 .
- the first light emitting device 1122 includes a first anode 103 , a cathode 105 and a first organic light emitting layer 104 located between the first anode 103 and the cathode 105 .
- the first pixel 112 may include a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel, and the first red sub-pixel, the first green sub-pixel and the first blue sub-pixel may share a cathode 105, and the first organic light-emitting layer 104 includes a first red organic light-emitting layer 1041, a first green organic light-emitting layer 1042 and a first blue organic light-emitting layer 1043, and the first red sub-pixel consists of the first anode 103, the first red organic light-emitting layer
- the light-emitting layer 1041 and the cathode 105 are formed, the first green sub-pixel is formed by the first anode 103, the first green organic light-emitting layer 1042 and the cathode 105, the first blue sub-pixel is formed by the first anode 103, the first blue organic light-emitting layer 1043 and the cathode 105 constitute.
- a pixel circuit layer 1120 is provided on the side of the first anode 103 close to the base substrate 101 .
- the pixel circuit layer 1120 includes a plurality of first pixel circuits 1121 and is further provided between the first pixel circuits 1121 and the base substrate 101 There is a reflective layer 102.
- the first pixel 112 emits light, a part of the light is emitted directly from the front of the display panel, while another part of the light is emitted to the side of the base substrate 101 and is reflected by the reflective layer 102.
- the resonant frequencies of the two parts of the light are the same. When matched, it can produce light that is about 1.5 to 2 times stronger than the original emitted light and will be emitted from the front of the display panel. This phenomenon is called the micro-cavity effect of the display panel, which can significantly improve the light efficiency.
- the reflection Layer 102 is a silver metal layer.
- the pixel density of the first display area is greater than the pixel density of the second display area, that is, the first pixels arranged in the first display area
- the pixel density of 112 is greater than the pixel density of the second pixels 113 arranged in the second display area.
- the area of the opening area of at least some of the second pixels 113 is smaller than the area of the opening area of the first pixel 112.
- the light transmission in the second display area can be improved without affecting the microcavity effect of the display panel.
- the under-screen camera is set in the second display area facing the area, the imaging effect of the under-screen camera can be effectively improved.
- Another embodiment of the present application further provides an electronic device, the electronic device includes the display panel according to any one of the above embodiments, and further includes a camera, and the camera is located in the front of the second display area of the display panel. to the area. Since the electrochromic layer is arranged between the light-emitting device in the second display area of the display panel and the base substrate, the light transmittance of the second display area can be improved without affecting the microcavity effect of the display panel, and the light transmittance of the second display area can be improved. Effectively improve the imaging effect of the under-screen camera.
- the electronic device in this embodiment of the present application may be a mobile electronic device or a non-mobile electronic device.
- the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a personal digital assistant (Personal Digital Assistant).
- UMPC Ultra-Mobile Personal Computer
- PDA Personal Digital Assistant
- the non-mobile electronic device may be a personal computer (Personal Computer, PC), a television (Television, TV), a teller machine or a self-service machine, etc., which are not specifically limited in the embodiments of the present application.
- the electronic devices in the embodiments of the present application include the aforementioned mobile electronic devices and non-mobile electronic devices.
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Abstract
La présente demande se rapporte au domaine technique de l'affichage, et concerne un panneau d'affichage et un dispositif électronique. Le panneau d'affichage comprend : un substrat de base comprenant une première zone d'affichage et une seconde zone d'affichage ; une pluralité de premiers pixels et une pluralité de seconds pixels, la pluralité de premiers pixels étant située dans la première zone d'affichage, le second pixel comprenant un second dispositif électroluminescent, et le second dispositif électroluminescent étant situé dans la seconde zone d'affichage ; et une couche électrochromique située entre le second dispositif électroluminescent et le substrat de base. La couche électrochromique peut être commutée entre un état coloré et un état transparent pour transmettre ou réfléchir la lumière.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN202110360851.7 | 2021-04-02 | ||
CN202110360851.7A CN112928149A (zh) | 2021-04-02 | 2021-04-02 | 显示面板和电子设备 |
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WO2022206832A1 true WO2022206832A1 (fr) | 2022-10-06 |
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PCT/CN2022/084052 WO2022206832A1 (fr) | 2021-04-02 | 2022-03-30 | Panneau d'affichage et dispositif électronique |
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CN (1) | CN112928149A (fr) |
WO (1) | WO2022206832A1 (fr) |
Families Citing this family (6)
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US11985841B2 (en) | 2020-12-07 | 2024-05-14 | Oti Lumionics Inc. | Patterning a conductive deposited layer using a nucleation inhibiting coating and an underlying metallic coating |
CN112928149A (zh) * | 2021-04-02 | 2021-06-08 | 维沃移动通信有限公司 | 显示面板和电子设备 |
CN113487999B (zh) * | 2021-07-26 | 2023-08-25 | 京东方科技集团股份有限公司 | 显示面板、电子设备和显示控制方法 |
CN113791511B (zh) * | 2021-09-01 | 2023-09-15 | 维沃移动通信有限公司 | 电子设备 |
CN117356192A (zh) * | 2022-04-27 | 2024-01-05 | 京东方科技集团股份有限公司 | 显示基板和显示装置 |
CN116052529A (zh) * | 2022-05-13 | 2023-05-02 | 荣耀终端有限公司 | 一种折叠显示装置 |
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CN110649074B (zh) * | 2019-09-25 | 2021-10-01 | 上海天马有机发光显示技术有限公司 | 一种显示面板和显示装置 |
CN112435586B (zh) * | 2020-11-30 | 2022-09-27 | 武汉天马微电子有限公司 | 一种显示面板及显示装置 |
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- 2021-04-02 CN CN202110360851.7A patent/CN112928149A/zh active Pending
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- 2022-03-30 WO PCT/CN2022/084052 patent/WO2022206832A1/fr active Application Filing
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WO2007004759A1 (fr) * | 2005-07-06 | 2007-01-11 | Lg Innotek Co., Ltd | Afficheur polyvalent |
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