US 12,336,158 B2
Vehicle-mounted display apparatus
Chengte Lai, Beijing (CN); and Qiang Li, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/016,281
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Feb. 25, 2022, PCT No. PCT/CN2022/078019
§ 371(c)(1), (2) Date Jan. 13, 2023,
PCT Pub. No. WO2023/159490, PCT Pub. Date Aug. 31, 2023.
Prior Publication US 2024/0414899 A1, Dec. 12, 2024
Int. Cl. H05K 9/00 (2006.01); H05K 5/00 (2006.01)
CPC H05K 9/0054 (2013.01) [H05K 5/0026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A vehicle-mounted display apparatus, comprising:
a display panel, comprising a display surface and a non-display surface facing away from the display surface;
a metal backboard, arranged on a side at which the non-display surface is located, wherein the metal backboard is grounded; and
a circuit board assembly, comprising a first circuit board arranged on a side of the metal backboard away from the display panel; wherein the first circuit board is in signal connection with the display panel through a first flexible printed circuit, the first circuit board comprises a first front surface facing away from the metal backboard, and a first back surface facing to the metal backboard; wherein the first front surface is provided with circuit patterns, at least one surface of the first circuit board is provided with a first copper leakage region, and the first copper leakage region is electrically connected with the metal backboard through a first conductive mechanism;
wherein the first front surface has a plurality of first copper leakage regions, the plurality of first copper leakage regions of the first front surface do not overlap the circuit patterns of the first front surface, the first conductive mechanism comprises conductive adhesive tape, and the plurality of first copper leakage regions of the first front surface are electrically connected with the metal backboard through the conductive adhesive tape.