US 12,236,837 B2
Power supply circuit, driving method thereof, printed circuit board, display module, and display apparatus
Ying Zhang, Beijing (CN); Jin Sha, Beijing (CN); Can Shen, Beijing (CN); Xiang Fang, Beijing (CN); Bo Ran, Beijing (CN); Chao Gao, Beijing (CN); Yao Chen, Beijing (CN); Yiming Cheng, Beijing (CN); Jinxiang Li, Beijing (CN); Shifei Huang, Beijing (CN); Shengjie Yin, Beijing (CN); Pan Chen, Beijing (CN); Jun Tao, Beijing (CN); Wendi Zhang, Beijing (CN); Zhou Zhang, Beijing (CN); Qiuju Xie, Beijing (CN); Jun Wei, Beijing (CN); and Hongchao Su, Beijing (CN)
Assigned to CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 18/014,440
Filed by CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN)
PCT Filed May 20, 2022, PCT No. PCT/CN2022/094148
§ 371(c)(1), (2) Date Jan. 4, 2023,
PCT Pub. No. WO2023/221101, PCT Pub. Date Nov. 23, 2023.
Prior Publication US 2024/0242656 A1, Jul. 18, 2024
Int. Cl. G09G 3/20 (2006.01); H05K 1/02 (2006.01)
CPC G09G 3/2092 (2013.01) [H05K 1/0277 (2013.01); G09G 2330/028 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A power supply circuit, comprising a first power management chip and a second power management chip configured to be connected with a display panel, respectively, and provide different driving signals to the display panel,
the driving signals being configured for driving the display panel to display,
the power supply circuit further comprising a control circuit connected with a control signal input terminal, a programming signal input terminal, the first power management chip and the second power management chip,
the control signal input terminal being configured for providing a target control signal,
the programming signal input terminal being configured for providing a target programming signal,
the control circuit being configured for, according to the target control signal, causing the programming signal input terminal to be connected with a target power management chip and not to be connected with a non-target power management chip, to write the target programming signal into the target power management chip,
the target power management chip being any one of the first power management chip and the second power management chip, and
the non-target power management chip being a power management chip, different from the target power management chip, among the first power management chip and the second power management chip.