US 11,990,099 B2
Source driver integrated circuit and display driving device
Seung Hwan Ji, Daejeon (KR); Ho Sung Hong, Daejeon (KR); Ye Ji Lee, Daejeon (KR); and Jung Bae Yun, Daejeon (KR)
Assigned to LX SEMICON CO., LTD., Daejeon (KR)
Filed by LX Semicon Co., Ltd., Daejeon (KR)
Filed on Jun. 16, 2023, as Appl. No. 18/336,576.
Application 18/336,576 is a continuation of application No. 17/544,864, filed on Dec. 7, 2021, granted, now 11,721,293.
Claims priority of application No. 10-2020-0176088 (KR), filed on Dec. 16, 2020.
Prior Publication US 2023/0335067 A1, Oct. 19, 2023
Int. Cl. G09G 3/3291 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 2300/0408 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels; and
a source driver integrated circuit sensing an electrical characteristic of the display panel,
wherein the source driver integrated circuit comprises:
an internal ground;
a first switch circuit including a first node that is electrically connected with the internal ground and a third node that is electrically connected with a sensing line of the display panel;
a driving reference voltage terminal to which a driving reference voltage is supplied;
a second switch circuit including a second node that is electrically connected with the driving reference voltage terminal and a fourth node that is electrically connected with the sensing line; and
a sensing channel circuit electrically connected with the internal ground and configured to receive a signal corresponding to an electrical characteristic of a pixel included in the display panel through the sensing line.