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1. CN109887961 - Array substrate and preparation method thereof, display panel and display device

Office
Chine
Numéro de la demande 201910117700.1
Date de la demande 15.02.2019
Numéro de publication 109887961
Date de publication 14.06.2019
Type de publication A
CIB
H01L 27/32
HÉLECTRICITÉ
01ÉLÉMENTS ÉLECTRIQUES FONDAMENTAUX
LDISPOSITIFS À SEMI-CONDUCTEURS; DISPOSITIFS ÉLECTRIQUES À L'ÉTAT SOLIDE NON PRÉVUS AILLEURS
27Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun
28comprenant des composants qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux
32avec des composants spécialement adaptés pour l'émission de lumière, p.ex. panneaux d'affichage plats utilisant des diodes émettrices de lumière organiques
CPC
H01L 27/3246
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
3246Pixel defining structures, e.g. banks
H01L 51/0005
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
0001Processes specially adapted for the manufacture or treatment of devices or of parts thereof
0002Deposition of organic semiconductor materials on a substrate
0003using liquid deposition, e.g. spin coating
0004using printing techniques, e.g. ink-jet printing, screen printing
0005ink-jet printing
H01L 2227/323
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2227Indexing scheme for devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate covered by group H01L27/00
32Devices including an organic light emitting device [OLED], e.g. OLED display
323Multistep processes for AMOLED
H01L 51/56
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]
56Processes or apparatus specially adapted for the manufacture or treatment of such devices or of parts thereof
H01L 2251/558
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
2251Indexing scheme relating to organic semiconductor devices covered by group H01L51/00
50Organic light emitting devices
55characterised by parameters
558Thickness
Déposants BOE TECHNOLOGY GROUP CO., LTD.
京东方科技集团股份有限公司
Inventeurs CUI YING
崔颖
Mandataires 北京律智知识产权代理有限公司 11438
北京律智知识产权代理有限公司 11438
Titre
(EN) Array substrate and preparation method thereof, display panel and display device
(ZH) 阵列基板及其制备方法、显示面板和显示装置
Abrégé
(EN)
The invention provides an array substrate. The array substrate comprises a substrate; a flattening layer formed on the substrate; multiple pixel electrodes formed on the flattening layer; and a pixeldefining layer which comprises a first pixel defining layer and a second pixel defining layer, wherein the first pixel defining layer is covered at the periphery of the pixel electrode and a pixel electrode center region is exposed, the second pixel defining layer is formed on the flattening layer between adjacent pixel electrodes, and is provided with multiple openings for limiting various sub-pixel units; the predetermined distance is spaced between the bottom of a dike part of the second pixel defining layer and the bottom of the dike part of the adjacent first pixel defining layer, and thethickness of the second pixel defining layer is greater than that of the first pixel defining layer. The invention further provides a preparation method of the array substrate and a display device containing the array substrate. The array substrate provided by the invention can form a more uniform organic luminescent layer, and the edge of the organic luminescent layer is free from the corresponding pixel electrode, and the luminescence uniformity in the pixel is improved.

(ZH)
提供一种阵列基板,包括:衬底基板;形成于所述衬底基板的平坦化层;形成在所述平坦化层上的多个像素电极;及像素界定层,包括第一像素界定层和第二像素界定层,所述第一像素界定层覆盖所述像素电极外周并露出所述像素电极中央区域,所述第二像素界定层形成于相邻所述像素电极之间的所述平坦化层上、并具有限定各个子像素单元的多个开口;所述第二像素界定层堤部的底部与其相邻的所述第一像素界定层堤部的底部间隔预定距离,且所述第二像素界定层的厚度大于所述第一像素界定层的厚度。还提供该阵列基板的制备方法及包含该阵列基板的显示装置。本发明的阵列基板可以形成更均匀的有机发光层,且有机发光层的边缘没有对应的像素电极,提高了像素内的发光均匀性。

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