US 11,988,921 B1
Light boards, methods of manufacturing a light board, and spliced display devices
Bin Zhao, Guangdong (CN); Juncheng Xiao, Guangdong (CN); Hongyuan Xu, Guangdong (CN); Shi Tang, Guangdong (CN); Meinan Li, Guangdong (CN); Yu Liu, Guangdong (CN); Guangmiao Wan, Guangdong (CN); and Bizhang Zhu, Guangdong (CN)
Assigned to TCL China Star Optoelectronics Technology Co., Ltd., Shenzhen (CN)
Filed by TCL China Star Optoelectronics Technology Co., Ltd., Guangdong (CN)
Filed on Mar. 31, 2023, as Appl. No. 18/193,834.
Claims priority of application No. 202211740398.3 (CN), filed on Dec. 31, 2022.
Int. Cl. G02F 1/1335 (2006.01); G02F 1/1333 (2006.01); G02F 1/13357 (2006.01)
CPC G02F 1/133612 (2021.01) [G02F 1/13336 (2013.01); G02F 1/133603 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A light board, comprising:
a light-emitting unit array, comprising a plurality of light-emitting units arranged in an array; and
a driver backplane, disposed on a backlight side of the light-emitting unit array, electrically connected to the light-emitting units, and comprising a base, a trace layer, and an insulating protection layer stacked successively in a direction away from the light-emitting unit array; and wherein
the trace layer comprises a plurality of traces and one or more bonding terminals each electrically connected to one of the traces;
an orthographic projection of the insulating protection layer on the base overlaps the traces, and the insulating protection layer comprises one or more first openings each exposing one of the bonding terminals; and
the insulating protection layer is disposed on an outermost side of the driver backplane away from the light-emitting unit array.