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1. CN109962084 - Organic light emitting diode display substrate, display device and manufacturing method

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Office
China
Application Number 201711338884.1
Application Date 14.12.2017
Publication Number 109962084
Publication Date 02.07.2019
Grant Number 109962084
Grant Date 14.08.2020
Publication Kind B
IPC
H01L 27/32
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
H01L 51/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
52Details of devices
CPC
H01L 27/3211
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
3206Multi-colour light emission
3211using RGB sub-pixels
H01L 27/3272
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
3241Matrix-type displays
3244Active matrix displays
3272Shielding, e.g. of TFT
H01L 51/5262
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
52Details of devices
5262Arrangements for extracting light from the device
H01L 51/5281
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
52Details of devices
5281Arrangements for contrast improvement, e.g. preventing reflection of ambient light
H01L 27/124
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
02including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
12the substrate being other than a semiconductor body, e.g. an insulating body
1214comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
124with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
H01L 27/3213
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
28including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part
32with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes [OLED]
3206Multi-colour light emission
3211using RGB sub-pixels
3213using more than three sub-pixels, e.g. RGBW
Applicants BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventors WANG DONGFANG
王东方
SU TONGSHANG
苏同上
WANG MING
王明
ZHAO CE
赵策
ZHOU BIN
周斌
Agents 北京银龙知识产权代理有限公司 11243
北京银龙知识产权代理有限公司 11243
Title
(EN) Organic light emitting diode display substrate, display device and manufacturing method
(ZH) 有机发光二极管显示基板、显示装置及制作方法
front page image
Abstract
(EN) The invention provides an organic light emitting diode display substrate, a display device and a manufacturing method. The organic light emitting diode display substrate comprises an underlayment substrate and a plurality of pixel units arranged on the underlayment substrate. Each pixel unit comprises a plurality of sub-pixel units. Each sub-pixel unit comprises a switching thin film transistor and a bottom emitting organic light emitting diode. The organic light emitting diode display substrate further comprises a shading layer which is located between the organic light emitting diodes and the switching thin film transistors. The orthographic projection of the shading layer on the underlayment substrate completely covers the orthographic projections of the semiconductor regions of the switching thin film transistors on the substrate. In the invention, the shading layer at least blocks the semiconductor regions of the switching thin film transistors so that the semiconductor regions are not illuminated by the light emitted by the organic light emitting diodes. Therefore, improvement is made on the problem of negative drift caused by the illumination on the semiconductor regions ofthe switching thin film transistors, and the display effect is improved.
(ZH) 本发明提供一种有机发光二极管显示基板、显示装置及制作方法，该有机发光二极管显示基板包括：衬底基板以及设置在衬底基板上的多个像素单元，每一像素单元包括多个亚像素单元，每一亚像素单元包括开关薄膜晶体管和底发射型有机发光二极管，有机发光二极管显示基板还包括：遮光层，遮光层位于有机发光二极管与开关薄膜晶体管之间，遮光层在衬底基板上的正投影完全覆盖开关薄膜晶体管的半导体区域在衬底基板上的正投影。本发明中，遮光层至少将开关薄膜晶体管的半导体区域遮挡住，使其不被有机发光二极管发射的光照射到，改善了开关薄膜晶体管的半导体区域被光照射导致的负飘问题，提高了显示效果。
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