US 12,488,738 B2
LED driving circuit and driving method, LED display system
Riyi Chen, Hangzhou (CN); Hong Bao, Hangzhou (CN); and Liang Wang, Hangzhou (CN)
Assigned to HANGZHOU SHIXIN TECHNOLOGY CO., LTD, Hangzhou (CN)
Appl. No. 18/700,375
Filed by HANGZHOU SHIXIN TECHNOLOGY CO., LTD, Hangzhou (CN)
PCT Filed Mar. 25, 2022, PCT No. PCT/CN2022/083002
§ 371(c)(1), (2) Date Apr. 11, 2024,
PCT Pub. No. WO2023/060845, PCT Pub. Date Apr. 20, 2023.
Claims priority of application No. 202111182998.8 (CN), filed on Oct. 11, 2021.
Prior Publication US 2024/0412683 A1, Dec. 12, 2024
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0426 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0272 (2013.01); G09G 2320/04 (2013.01); G09G 2320/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An LED driving circuit, comprising: a main input terminal, at least one backup input terminal and an output terminal;
wherein the LED driving circuit receives a configuration signal and a data signal from a preceding LED driving circuit via the main input terminal, or from any of previous LED driving circuits via the backup input terminal, with at least one LED driving circuit spaced between the previous LED driving circuits and the current LED driving circuit;
the LED driving circuit forwards the configuration signal and the data signal of LED driving circuits that are cascaded after the current LED driving circuit to a next LED driving circuit and/or to a following LED driving circuit that is connected to the current LED driving circuit across the next LED driving circuit via the output terminal, with at least one LED driving circuit spaced between the following LED driving circuit and the current LED driving circuit,
wherein when the LED driving circuit receives the configuration signal and the data signal from the backup input terminal, a display data of the LED driving circuit is selected from a plurality of display data included in the data signal received from the backup input terminal according to the configuration signal received from the backup input terminal.