US 12,140,832 B2
Display device and splicing screen comprising a flexible circuit board having a first part and a second part that extends outside of a liquid crystal display screen
Jiakun Qi, Beijing (CN); and Enliang Zhang, Beijing (CN)
Assigned to Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/415,253
Filed by Beijing BOE Display Technology Co., Ltd., Beijing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Dec. 28, 2020, PCT No. PCT/CN2020/140236
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2021/169554, PCT Pub. Date Sep. 2, 2021.
Claims priority of application No. 202010113719.1 (CN), filed on Feb. 24, 2020.
Prior Publication US 2022/0404659 A1, Dec. 22, 2022
Int. Cl. G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); H05K 1/02 (2006.01)
CPC G02F 1/13336 (2013.01) [G02F 1/133314 (2021.01); G02F 1/133528 (2013.01); G02F 1/1336 (2013.01); H05K 1/0277 (2013.01); H05K 2201/10106 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A splicing screen, which comprises at least two display devices spliced mutually, wherein each of at least one of the display devices comprises a liquid crystal display screen, a lamp board and a printed circuit board, wherein
the lamp board comprises a flexible circuit board and a plurality of light-emitting diodes, the flexible circuit board comprises a first part and a second part connected with each other; the light-emitting diodes are disposed on the first part, and the first part is disposed on an edge of a front surface of the liquid crystal display screen; the second part extends outside of the liquid crystal display screen to a rear surface of the liquid crystal display screen,
the printed circuit board is disposed on the rear surface, and the second part is detachably plugged into the printed circuit board; and
the second part comprises an attaching portion and an extending portion; the first part, the attaching portion and the extending portion are sequentially connected; a surface of the attaching portion close to the liquid crystal display screen is attached to the edge of the front surface; the first part is superimposed on a surface of the attaching portion away from the liquid crystal display screen; and the extending portion is connected to the attaching portion and is detachably plugged into the printed circuit board.