US 12,223,865 B2
Display driving circuit and method for testing drivers thereof
Chung-Hsin Su, Hsinchu County (TW)
Assigned to SITRONIX TECHNOLOGY CORP., Hsinchu County (TW)
Filed by SITRONIX TECHNOLOGY CORP., Hsinchu County (TW)
Filed on Jul. 25, 2023, as Appl. No. 18/225,880.
Claims priority of provisional application 63/358,315, filed on Jul. 25, 2022.
Prior Publication US 2024/0029603 A1, Jan. 25, 2024
Int. Cl. G09G 3/00 (2006.01); G09G 3/3208 (2016.01)
CPC G09G 3/006 (2013.01) [G09G 3/3208 (2013.01); G09G 2330/12 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display driving circuit, comprising:
a control circuit, including a first preset parameter, a second preset parameter, and a first testing module;
a first driver, coupled to said control circuit, receiving at least one of a first voltage level and/or a second voltage level to said first driver from said first test module and returning at least one of a first returned voltage level and/or a second returned voltage level to said first testing module, said first testing module comparing said first returned voltage level with to said first preset parameter while said first test module receives said first returned voltage level, and said first testing module comparing said second returned voltage level with said second preset parameter while said first test module receives said second returned voltage level; and
a second driver, coupled to said first testing module and connected in series with said first driver;
where said first testing module transmits an enable signal to said first driver for testing said first driver and said second driver sequentially; and when said first returned voltage level is not equal to said first preset parameter or said second returned voltage level is not equal to said second preset parameter, said control circuit stops testing said second driver, when said first returned voltage level is equal to said first preset parameter and said second returned voltage level is equal to said second preset parameter, said first driver transmits said enable signal to said second driver.