US 12,340,760 B2
Display device and driving method of the same
Sung Wook Choi, Gyeonggi-do (KR); and Kil Hwan Oh, Gyeonggi-do (KR)
Assigned to LG Display Co., Ltd., (KR)
Filed by LG Display Co., Ltd, Seoul (KR)
Filed on Dec. 11, 2023, as Appl. No. 18/534,835.
Claims priority of application No. 10-2022-0189681 (KR), filed on Dec. 29, 2022.
Prior Publication US 2024/0221687 A1, Jul. 4, 2024
Int. Cl. G09G 3/3291 (2016.01); G09G 3/32 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 3/32 (2013.01); G09G 2310/0275 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including an active area and a non-active area;
a low voltage line configured to supply a low voltage to the display panel;
a timing controller configured to output a data signal for displaying an image on the display panel; and
a data driver configured to convert the data signal into a data voltage to be supplied to the display panel and output the converted data voltage,
wherein the data driver comprises a voltage compensator configured to prepare a compensation voltage for compensating for a rise of the low voltage, reflect the compensation voltage in the data voltage, and output the resultant voltage as a compensation data voltage,
wherein the voltage compensator comprises:
a compensator configured to store a voltage for compensating for the rise of the low voltage; and
a controller configured to control the compensator,
wherein the voltage compensator comprises a first switch located between the low voltage line and the compensator to sense the low voltage; and
wherein the first switch operates in response to a first switch signal output from the controller.