DISPLAY SUBSTRATE, ITS MANUFACTURING METHOD AND DISPLAY DEVICE Russian patent published in 2022 - IPC H01L27/32 

FIELD: display technology.

SUBSTANCE: display substrate, the method for its manufacture and the display device are disclosed. In the display substrate (100), each sub-pixel includes: a conductive light-shielding structure (122); a buffer layer (130) located on the side of the conductive light-shielding structure (122) facing away from the base substrate (110); a semiconductor layer (140) located on the side of the buffer layer (130) facing away from conductive light-shielding structure (122); interlayer insulating layer (170) located on the side of the semiconductor layer (140) facing away from the buffer layer (130); and a conductive layer (180) located on the side of the interlayer insulating layer (170) facing away from the semiconductor layer (140), and including a conductive structure (181). The conductive light-shielding structure (122) includes the first section (1220) of the main body and the first recessed section (1224), the average thickness of the first recessed section (1224) in the direction perpendicular to the base substrate (110) is less than the average thickness of the first section (1220) of the main body in the direction perpendicular to the base substrate (110). The display substrate (100) additionally includes the first contact hole (251), and the first contact hole (251) penetrates both through the interlayer insulating layer (170) and through the buffer layer (130), the conductive structure (181) is electrically connected to the first recessed section (1224) through the first contact hole (251).

EFFECT: invention makes it possible to increase the efficiency of the electrical connection between the conductive structure and the conductive light-shielding structure.

96 cl, 15 dwg