WO2021136135A1 - 显示屏及电子设备 - Google Patents

显示屏及电子设备 Download PDF

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Publication number
WO2021136135A1
WO2021136135A1 PCT/CN2020/139900 CN2020139900W WO2021136135A1 WO 2021136135 A1 WO2021136135 A1 WO 2021136135A1 CN 2020139900 W CN2020139900 W CN 2020139900W WO 2021136135 A1 WO2021136135 A1 WO 2021136135A1
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light
emitting
emitting portion
display screen
emitting part
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PCT/CN2020/139900
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English (en)
French (fr)
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文亮
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维沃移动通信有限公司
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Publication of WO2021136135A1 publication Critical patent/WO2021136135A1/zh

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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
    • 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

Definitions

  • the present invention relates to the technical field of communication equipment, in particular to a display screen and electronic equipment.
  • infrared lights and infrared sensors such as infrared fingerprint sensors, infrared face detection cameras, infrared distance detection sensors, etc.
  • infrared sensors such as infrared fingerprint sensors, infrared face detection cameras, infrared distance detection sensors, etc.
  • the infrared light emitted by the infrared lamp is projected out through the display screen, and then projected onto a blocking object (such as a human face).
  • the infrared light reflected by the blocking object is sensed by the infrared sensor again through the display screen.
  • infrared light can also be used for infrared fill light through the display screen.
  • the infrared lamp Since the infrared lamp is arranged under the display screen, the infrared lamp and the display screen are two independent components. In a specific work process, the infrared light emitted by the infrared lamp will penetrate the display screen.
  • the display screen manufactured by the existing manufacturing process will have the following problems when it is transmitted by infrared light: First, more infrared light is easily absorbed by the channel of the thin film transistor (TFT) layer of the display screen to generate photoelectricity. Effect, the light leakage of the TFT layer increases, which will eventually cause the pixel circuit to become unstable and display abnormalities; secondly, more infrared light is absorbed by the TFT layer, which will cause the function of the TFT layer to degrade, resulting in uneven display.
  • TFT thin film transistor
  • the metal of the display screen will block the penetration of infrared light, resulting in insufficient light emitted by the infrared light from the display screen, resulting in insufficient infrared light reflected, and ultimately more likely to cause detection problems due to insufficient infrared light received by the infrared sensor.
  • the present invention discloses a display screen and an electronic device to solve the problem that the infrared lamp in the current electronic device is arranged below the display screen, which will affect the display of the display screen and cause poor detection effect of the infrared sensor.
  • the present invention adopts the following technical solutions:
  • an embodiment of the present invention discloses a display screen, which includes a substrate and an organic light-emitting device disposed on the substrate.
  • the organic light-emitting device includes a first light-emitting portion and a second light-emitting portion, the second light-emitting portion Is an infrared light-emitting portion, the substrate is provided with a TFT layer, the first light-emitting portion and the second light-emitting portion are electrically connected to the TFT layer, and the first light-emitting portion and the second light-emitting portion are both provided On the side facing the TFT layer.
  • an embodiment of the present invention discloses an electronic device, and the disclosed electronic device includes the above-mentioned display screen.
  • the display screen disclosed by the present invention improves the structure of the display screen in the prior art, so that the display screen includes a second light-emitting portion, so that the second light-emitting portion and the original first light-emitting portion of the display screen are both provided with a TFT layer. , And then driven by the TFT layer, the first light-emitting portion and the second light-emitting portion are located on the same side of the TFT layer away from the substrate, so that the first light-emitting portion and the second light-emitting portion can both project light in the same direction, and the second light-emitting portion It is an infrared light-emitting part, which can be used to supplement light when the infrared sensor of an electronic device is working.
  • the infrared light emitted by the second light-emitting part does not need to pass through the TFT layer, which can reduce the impact on the TFT layer, thereby alleviating the impact on the display of the display screen , Of course, it can also reduce the blocking of infrared light by the display.
  • Figures 1 to 3 are schematic diagrams of partial structures of three display screens disclosed in the embodiments of the present invention.
  • 200-organic light-emitting device 210-first light-emitting part, 211-red light-emitting part, 212-green light-emitting part, 213-blue light-emitting part, 220-second light-emitting part, 201-light-emitting layer, 202-electron transport layer, 300-TFT layer.
  • an embodiment of the present invention discloses a display screen, and the disclosed display screen is suitable for electronic equipment.
  • the display screen disclosed in the embodiment of the present invention includes a substrate 100, an organic light emitting device 200, and a TFT layer.
  • the organic light emitting device 200 is disposed on the substrate 100, and the organic light emitting device 200 includes a first light emitting part 210 and a second light emitting part 220.
  • the first light-emitting part 210 is a light-emitting device used by the display screen to provide light for its own display.
  • the first light-emitting part 210 is an RGB light-emitting body.
  • the second light-emitting part 220 is an infrared light-emitting part.
  • the infrared light-emitting part emits infrared light, and then performs infrared fingerprint recognition, face recognition, and infrared distance detection for electronic devices. Fill light in the process.
  • the second light-emitting part 220 may be an infrared organic diode.
  • a thin film transistor (TFT) layer 300 is disposed on the substrate 100, and the first light-emitting portion 210 and the second light-emitting portion 220 are both electrically connected to the TFT layer, and then driven by the TFT layer 300.
  • the first light-emitting portion 210 and the second light-emitting portion 220 are disposed on the side of the TFT layer 300 away from the substrate 100, so as to project light in the same direction.
  • the display screen disclosed in the embodiment of the present invention improves the structure of the display screen in the prior art, so that the display screen includes a second light-emitting portion 220, so that the second light-emitting portion 220 and the original first light-emitting portion 210 of the display screen are both It is provided on the TFT layer 300 and then driven by the TFT layer 300.
  • the first light-emitting portion 210 and the second light-emitting portion 220 are both located on the same side of the TFT layer 300 away from the substrate 100, so that the first light-emitting portion 210 and the second light-emitting portion can be 220 all project light toward the same direction, and the second light-emitting part 220 is an infrared light-emitting part, so that it can be used to supplement light when the infrared sensor of the electronic device works. Since the second light-emitting portion 220 is disposed on the side of the TFT layer 300 away from the substrate 100, the infrared light emitted by the second light-emitting portion 220 does not need to pass through the TFT layer 300, which can reduce the impact on the TFT layer 300. Of course, it can also Reduce the screen's blocking of infrared light.
  • the infrared light emitted from the display screen will not affect the positive display of the display screen.
  • the electronic device disclosed in the embodiment of the present invention includes an infrared sensor, which is arranged below the display screen.
  • the infrared light emitted by the second light-emitting part 220 is projected on the object to be detected, and the infrared light is reflected After passing through the display, it is sensed by the sensor, and the detection is finally completed.
  • the display screen disclosed in the embodiment of the present invention can reduce the influence on the display screen and the influence of the display screen when the infrared light is directed to the detected object.
  • the first light-emitting parts 210 and the second light-emitting parts 220 may be spaced apart to facilitate the layout, and at the same time, the mutual influence can be reduced.
  • the second light-emitting part 220 may be disposed on the edge of the TFT layer 300.
  • the display screen includes a corner area, and the second light-emitting part 220 is arranged in the corner area.
  • the second light-emitting part 220 is specifically arranged at a part of the TFT layer 300 opposite to the corner area. on.
  • the shape of the display screen is a structure similar to a rectangle or a square, and the display screen includes four corner regions, and the second light-emitting part 220 can be arranged in one corner region.
  • the second light-emitting part 220 may have a variety of arrangements. In order to improve the effect of infrared supplementary light, in a more preferred solution, the second light-emitting parts 220 may be arranged in rows. In another specific embodiment, the second light-emitting parts 220 may be distributed in a ring shape. Specifically, the second light-emitting parts 220 may be arranged around the first light-emitting part 210 to achieve the purpose of multi-directional light supplementation.
  • the second light-emitting part 220 can have a variety of structures. As shown in FIG. 1, in an alternative solution, the second light-emitting part 220 can include a matrix and light-emitting particles doped in the matrix. Specifically, the matrix and the light-emitting particles doped in the matrix The luminescent particles in the body can form an infrared luminescent layer.
  • the substrate may be electrically connected to the TFT layer 300, so that the luminescent particles emit infrared light.
  • the material of the matrix may be 8-hydroxyquinoline aluminum, and the material of the light-emitting particles may be platinum azatriphenyltetrabenzoporphyrin.
  • 8-hydroxyquinoline aluminum and platinum azatriphenyl tetrabenzoporphyrin can be formed by vapor deposition together, and the mass ratio of platinum azatriphenyl tetrabenzoporphyrin can be Is 4%.
  • the thickness of the infrared light-emitting layer may be 15 nm.
  • the above-mentioned independent formation of the infrared light-emitting layer can prevent the second light-emitting part 220 and the first light-emitting part 210 from affecting each other, thereby reducing the influence on the display of the display screen.
  • the second light emitting part 220 may also be formed in other ways.
  • the second light-emitting portion 220 is doped and disposed in the electron transport layer 202 of the first light-emitting portion 210.
  • the second light-emitting portion 220 can be added to the first light-emitting portion 210 during the molding process of the first light-emitting portion 210, which can undoubtedly improve the manufacturing efficiency of the display screen.
  • the second light-emitting portion 220 The integration with the first light-emitting portion 210 can prevent the second light-emitting portion 220 from occupying the area of the light-emitting area alone, which is beneficial to improve the balance of display in various areas of the display screen.
  • the first light-emitting portion 210 may include an electron transport layer of at least one of a red light-emitting portion 211, a green light-emitting portion 212, and a blue light-emitting portion 213, and the red light-emitting portion 211, the green light-emitting portion 212, and the blue light-emitting portion 213
  • the second light emitting part 220 is doped in 202.
  • the electron transport layer 202 of one of the red light-emitting portion 211, the green light-emitting portion 212, and the blue light-emitting portion 213 may be doped with the second light-emitting portion 220, thereby reducing the light emission of the first light-emitting portion 210. Impact.
  • the second light-emitting part 220 may be doped and disposed in the light-emitting layer 201 of the first light-emitting part 210.
  • the first light-emitting portion 210 includes a red light-emitting portion 211, a green light-emitting portion 212, and a blue light-emitting portion 213. At least one of the red light-emitting portion 211, the green light-emitting portion 212, and the blue light-emitting portion 213 is doped with the light-emitting layer 201 The second light emitting part 220.
  • the light-emitting layer 201 of one of the red light-emitting portion 211, the green light-emitting portion 212, and the blue light-emitting portion 213 may be doped with the second light-emitting portion 220, so that the influence on the light emission of the first light-emitting portion 210 can be reduced.
  • the second light-emitting portion 220 may be the aforementioned light-emitting particles (for example, platinum azatriphenyl tetrabenzoporphyrin), and the light-emitting particles can emit infrared light during the process of the first light-emitting portion 210 emitting light.
  • the above-mentioned luminescent particles are arranged on the electron transport layer 202 or the luminescent layer 201 to emit infrared light.
  • the luminescence mechanism of platinum azatriphenyltetrabenzoporphyrin is a well-known technology.
  • the embodiment of the present invention discloses an electronic device, and the disclosed electronic device includes the display screen described in the above embodiment.
  • the electronic devices disclosed in the embodiments of the present invention may be mobile phones, tablet computers, e-book readers, game consoles, wearable devices (such as smart watches) and other devices.
  • the embodiments of the present invention do not limit the specific types of electronic devices.

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Abstract

一种显示屏，包括基板（100）以及设置在所述基板（100）上的有机发光器件（200），所述有机发光器件（200）包括第一发光部（210）和第二发光部（220），所述第二发光部（220）为红外发光部，所述基板（100）设置有TFT层（300），所述第一发光部（210）和所述第二发光部（220）均与所述TFT层（300）电连接，所述第一发光部（210）和所述第二发光部（220）均设置在所述TFT层（300）背离所述基板（100）的一侧。

Description

显示屏及电子设备
相关申请的交叉引用
本申请主张在2019年12月30日在中国提交的中国专利申请号No.201911394665.4的优先权，其全部内容通过引用包含于此。
技术领域
本发明涉及通信设备技术领域，尤其涉及一种显示屏及电子设备。
背景技术
随着用户需求的提升，电子设备的性能持续在优化。越来越多的电子设备在显示屏的下方配置有红外灯及红外传感器(例如红外指纹传感器、红外探测人脸用摄像头、红外距离探测传感器等)。在具体的工作过程中，红外灯发射的红外光通过显示屏后投射出，然后投射到阻挡物(例如人脸)上，经过阻挡物反射后的红外光再次通过显示屏被红外传感器感应，达到检测的目的。当然，红外光还可以通过显示屏进行红外补光。
由于红外灯设置在显示屏的下方，红外灯与显示屏为相互独立的两个构件，在具体的工作过程中，红外灯发射的红外光会穿透显示屏。通过现有的制造工艺制造的显示屏在被红外光透过时会存在以下问题：首先，较多的红外光容易被显示屏的薄膜晶体管(Thin Film Transistor，TFT)层的沟道吸收从而产生光电效应，TFT层的光漏流增大，最终会引起像素电路不稳定而发生显示异常；其次，较多的红外光被TFT层吸光进而会引起TFT层发生功能退化，从而出现显示不均的问题；再次，显示屏的金属会阻挡红外光线的穿透，导致红外光射出显示屏的光线不足，从而导致反射的红外光不足，最终较容易导致红外传感器由于接受到的红外光不足产生检测问题。
发明内容
本发明公开一种显示屏及电子设备，以解决目前的电子设备中红外灯设置在显示屏的下方会影响显示屏的显示及导致红外传感器的检测效果不佳的 问题。
为了解决上述问题，本发明采用下述技术方案：
第一方面，本发明实施例公开一种显示屏，包括基板以及设置在所述基板上的有机发光器件，所述有机发光器件包括第一发光部和第二发光部，所述第二发光部为红外发光部，所述基板设置有TFT层，所述第一发光部和所述第二发光部均与所述TFT层电连接，所述第一发光部和所述第二发光部均设置在所述TFT层朝向所述的一侧。
第二方面，本发明实施例公开一种电子设备，所公开的电子设备包括上文所述的显示屏。
本发明采用的技术方案能够达到以下有益效果：
本发明公开的显示屏通过对现有技术中的显示屏的结构进行改进，使得显示屏包括第二发光部，使得第二发光部和显示屏原有的第一发光部均设置有TFT层上，进而由TFT层驱动，第一发光部和第二发光部均位于TFT层背离基板的同一侧，从而能够使得第一发光部和第二发光部均朝向同一个方向投射光线，第二发光部为红外发光部，从而能够实现为电子设备的红外传感器工作时进行补光。由于第二发光部设置在TFT层背离基板的一侧，因此第二发光部发出的红外光无需穿过TFT层，也就能够减少对TFT层的影响，进而能够缓解对显示屏的显示的影响，当然，也能够减少显示屏对红外光的阻挡。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本发明的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1～图3分别为本发明实施例公开的三种显示屏的部分结构示意图。
附图标记说明：
100-基板、
200-有机发光器件、210-第一发光部、211-红色发光部、212-绿色发光部、213-蓝色发光部、220-第二发光部、201-发光层、202-电子传输层、 300-TFT层。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合本发明具体实施例及相应的附图对本发明技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
以下结合附图，详细说明本发明各个实施例公开的技术方案。
请参考图1～图3，本发明实施例公开一种显示屏，所公开的显示屏适用于电子设备。本发明实施例公开的显示屏包括基板100、有机发光器件200、TFT层。
有机发光器件200设置在基板100上，有机发光器件200包括第一发光部210和第二发光部220。第一发光部210为显示屏用来为自身的显示提供光线的发光装置，例如第一发光部210为RGB发光体。
在本发明实施例中，第二发光部220为红外发光部，在具体的工作过程中，红外发光部发出红外光，进而为电子设备在进行红外指纹识别、人脸识别、红外距离探测等工作过程中补光。一种具体的实施方式中，第二发光部220可以是红外有机二极管。
薄膜晶体管(Thin Film Transistor，TFT)层300设置在基板100上，第一发光部210和第二发光部220均与TFT层电连接，进而由TFT层300驱动。在本发明实施例中，第一发光部210和第二发光部220设置于TFT层300背离基板100的一侧，从而向同一个方向投射光线。
本发明实施例公开的显示屏通过对现有技术中的显示屏的结构进行改进，使得显示屏包括第二发光部220，使得第二发光部220和显示屏原有的第一发光部210均设置有TFT层300上，进而由TFT层300驱动，第一发光部210和第二发光部220均位于TFT层300背离基板100的同一侧，从而能够使得第一发光部210和第二发光部220均朝向同一个方向投射光线，第二发光部220为红外发光部，从而能够实现为电子设备的红外传感器工作时进行 补光。由于第二发光部220设置在TFT层300背离基板100的一侧，因此第二发光部220发出的红外光无需穿过TFT层300，也就能够减少对TFT层300的影响，当然，也能够减少显示屏对红外光的阻挡。
与此同时，由于用户人眼看不到红外光，因此红外光从显示屏的射出也不会影响显示屏的正产显示。
本发明实施例公开的电子设备包括红外传感器，红外传感器设置于显示屏的下方，在具体的工作过程中，第二发光部220发出的红外光投射到被检测物上之后，被反射的红外光通过显示屏后被传感器感应，最终完成检测。本发明实施例公开的显示屏在红外光射向被检测物的过程中能够减少对显示屏的影响及被显示屏影响。
在本发明实施例中，第一发光部210与第二发光部220可以间隔分布，从而方便布设，与此同时，还能够减少相互之间的影响。
为了减少显示屏的显示的影响，在较为优选的方案中，第二发光部220可以设置在TFT层300的边缘。一种具体的实施方式中，显示屏包括角部区域，第二发光部220设置在角部区域，在此种情况下，第二发光部220具体设置在TFT层300与角部区域相对的部位上。在通常情况下，显示屏的形状为类似于长方形或正方形的结构，显示屏包括四个角部区域，第二发光部220可以设置在其中的一个角部区域即可。
当然，第二发光部220可以具有多种设置方式。为了提高红外补光效果，在较为优选的方案中，第二发光部220可以成排分布。另一种具体的实施方式中，第二发光部220可以为呈环状分布，具体的，第二发光部220可以环绕第一发光部210设置，从而实现多方位补光的目的。
第二发光部220可以有多种结构，如图1所示，可选的方案中，第二发光部220可以包括基体和掺杂在基体内的发光粒子，具体的，基体与掺杂在基体内的发光粒子能够形成红外发光层。基体可以与TFT层300电连接，进而实现发光粒子发出红外光。具体的，基体的材料可以为8-羟基喹啉铝，发光粒子的材料可以为铂氮杂三苯基四苯并卟啉。具体的，在制造的过程中，8-羟基喹啉铝和铂氮杂三苯基四苯并卟啉可以共同通过蒸镀成型，铂氮杂三苯基四苯并卟啉的质量占比可以为4％。红外发光层的厚度可以为15nm。
上述独立形成红外发光层，从而能够使得第二发光部220与第一发光部210之间相互不会影响，进而能够减少对显示屏的显示的影响。
当然，第二发光部220还可以通过其它的方式形成。可选的方案中，第二发光部220掺杂设置在第一发光部210的电子传输层202中。在此种情况下，第二发光部220可以通过在第一发光部210成型的过程中加入第一发光部210中，这无疑能够提高显示屏的制造效率，与此同时，第二发光部220与第一发光部210之间融合，能够避免第二发光部220单独占据发光区域的面积，有利于提升显示屏各个区域显示的均衡性。
具体的，第一发光部210可以包括红色发光部211、绿色发光部212和蓝色发光部213，红色发光部211、绿色发光部212和蓝色发光部213中的至少一者的电子传输层202中掺杂有第二发光部220。可选的方案中，红色发光部211、绿色发光部212和蓝色发光部213中的一者的电子传输层202中可以掺杂有第二发光部220，从而能够减少第一发光部210发光的影响。
可选的方案中，第二发光部220可以掺杂设置在第一发光部210的发光层201中。第一发光部210包括红色发光部211、绿色发光部212和蓝色发光部213，红色发光部211、绿色发光部212和蓝色发光部213中的至少一者的发光层201中掺杂有第二发光部220。具体的，红色发光部211、绿色发光部212和蓝色发光部213中的一者的发光层201中可以掺杂有第二发光部220，从而能够减少对第一发光部210发光的影响。
具体的，第二发光部220可以为上文所述的发光粒子(例如，铂氮杂三苯基四苯并卟啉)，在第一发光部210发光的过程中，发光粒子能够发出红外光，将上述发光粒子设置在电子传输层202或发光层201则能够发出红外光。铂氮杂三苯基四苯并卟啉的发光机理为公知技术。
基于本发明实施例公开的显示屏，本发明实施例公开一种电子设备，所公开的电子设备包括上文实施例所述的显示屏。
本发明实施例公开的电子设备可以是手机、平板电脑、电子书阅读器、游戏机、可穿戴设备(例如智能手表)等设备，本发明实施例不限制电子设备的具体种类。
本发明上文实施例中重点描述的是各个实施例之间的不同，各个实施例 之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本发明的实施例而已，并不用于限制本发明。对于本领域技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本发明的权利要求范围之内。

Claims (10)

  1. 一种显示屏，包括基板(100)以及设置在所述基板(100)上的有机发光器件(200)，所述有机发光器件(200)包括第一发光部(210)和第二发光部(220)，所述第二发光部(220)为红外发光部，所述基板(100)设置有薄膜晶体管TFT层(300)，所述第一发光部(210)和所述第二发光部(220)均与所述TFT层(300)电连接，所述第一发光部(210)和所述第二发光部(220)均设置在所述TFT层(300)背离所述基板(100)的一侧。
  2. 根据权利要求1所述的显示屏，其中，所述第一发光部(210)与所述第二发光部(220)间隔分布。
  3. 根据权利要求2所述的显示屏，其中，所述显示屏包括角部区域，所述第二发光部(220)设置在所述角部区域。
  4. 根据权利要求2所述的显示屏，其中，所述第二发光部(220)成排分布，或者，所述第二发光部(220)呈环形分布。
  5. 根据权利要求2所述的显示屏，其中，所述第二发光部(220)包括基体和掺杂在所述基体内的发光粒子。
  6. 根据权利要求1所述的显示屏，其中，所述第二发光部(220)掺杂设置在所述第一发光部(210)的电子传输层(202)中。
  7. 根据权利要求6所述的显示屏，其中，所述第一发光部(210)包括红色发光部(211)、绿色发光部(212)和蓝色发光部(213)，所述红色发光部(211)、所述绿色发光部(212)和蓝色发光部(213)中的至少一者的所述电子传输层(202)中掺杂有所述第二发光部(220)。
  8. 根据权利要求1所述的显示屏，其中，所述第二发光部(220)掺杂设置在所述第一发光部(210)的发光层(201)中。
  9. 根据权利要求8所述的显示屏，其中，所述第一发光部(210)包括红色发光部(211)、绿色发光部(212)和蓝色发光部(213)，所述红色发光部(211)、所述绿色发光部(212)和蓝色发光部(213)中的至少一者的所述发光层(201)中掺杂有所述第二发光部(220)。
  10. 一种电子设备，包括权利要求1至9中任一项所述的显示屏。
PCT/CN2020/139900 2019-12-30 2020-12-28 显示屏及电子设备 WO2021136135A1 (zh)

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