DISPLAY SUBSTRATE AND DISPLAY DEVICE

WIPO Patent Application WO/2021/164645

A1

A display substrate, having a display region and a peripheral region surrounding the display region. The display substrate comprises a base, a cathode power line, a first insulating layer, a cathode layer, and a spacer block. The cathode power line is provided on the base and located in the peripheral region. The first insulating layer is located at the side, distant from the base, of a film layer where the cathode power line is located, and at least one first via hole is formed in the first insulating layer. The cathode layer is located at the side, distant from the base, of the first insulating layer, and the cathode layer is electrically connected to the cathode power line by means of the at least one first via hole. The spacer block is located at the side, close to the base, of the cathode layer, and at least covers the side wall of the first via hole; and along the side wall of the first via hole and in a direction from the end of the side wall close to the base to the end of the side wall distant from the base, the thickness of a portion of the spacer covering the side wall of the first via hole gradually decreases.

CHENG LEILEI (CN)
LI YONGQIAN (CN)
ZHANG DACHENG (CN)

PCT/CN2021/076205

August 26, 2021

February 09, 2021

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BOE TECHNOLOGY GROUP CO LTD (CN)
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO LTD (CN)

H01L27/32

CN103258968A	2013-08-21
CN103296033A	2013-09-11
CN107039486A	2017-08-11
CN106711156A	2017-05-24
CN109962078A	2019-07-02
US20050140279A1	2005-06-30

BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)

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