US 12,347,352 B2
Driver chip, light-emitting substrate and testing method thereof, and display apparatus
Wei Hao, Beijing (CN); Junwei Zhang, Beijing (CN); Xiaoyu Zhang, Beijing (CN); and Lingyun Shi, Beijing (CN)
Assigned to BOE MLED Technology Co., Ltd., Beijing (CN); and ROE TECHNOLOGY GROUP CO., LTD, Beijing (CN)
Appl. No. 18/263,378
Filed by BOE MLED Technology Co., Ltd., Beijing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 14, 2022, PCT No. PCT/CN2022/105751
§ 371(c)(1), (2) Date Jul. 28, 2023,
PCT Pub. No. WO2024/011508, PCT Pub. Date Jan. 18, 2024.
Prior Publication US 2024/0428711 A1, Dec. 26, 2024
Int. Cl. G09G 3/36 (2006.01); G02F 1/133 (2006.01); G09G 3/00 (2006.01); G09G 3/32 (2016.01); H01L 25/16 (2023.01)
CPC G09G 3/006 (2013.01) [G02F 1/13306 (2013.01); G09G 3/32 (2013.01); G09G 2310/0272 (2013.01); G09G 2330/021 (2013.01); G09G 2330/12 (2013.01); H01L 25/167 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A driver chip, comprising:
a logic control module;
at least one output pin electrically connected to the logic control module; and
a first functional pin electrically connected to the logic control module, wherein the first functional pin is capable of receiving a test signal, and the logic control module is configured to generate, according to the test signal, a test current flowing through each output pin;
an address pin electrically connected to the logic control module, wherein the address pin is capable of receiving driving data, and the driving data includes address verification information and a plurality of pieces of driving information corresponding to a plurality of driver chips that are cascaded; and the logic control module is further configured to:
obtain, according to the address verification information, a piece of driving information corresponding to the driver chip;
update the address verification information; and
generate driving data including updated address verification information; and
a relay pin electrically connected to the logic control module, wherein the relay pin is capable of outputting the driving data including the updated address verification information.