US 12,361,882 B2
Electroluminescent display apparatus and method of driving the same
Ho Seong Hwang, Paju-si (KR); Hyun Woo Cho, Paju-si (KR); and Seung Yeon Kim, Paju-si (KR)
Assigned to LG Display Co., Ltd., Seoul (KR)
Filed by LG Display Co., Ltd., Seoul (KR)
Filed on Nov. 28, 2023, as Appl. No. 18/521,498.
Claims priority of application No. 10-2022-0187711 (KR), filed on Dec. 28, 2022.
Prior Publication US 2024/0221657 A1, Jul. 4, 2024
Int. Cl. G09G 3/00 (2006.01); G09G 3/3208 (2016.01); G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0257 (2013.01); G09G 2320/045 (2013.01); G09G 2320/048 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electroluminescent display apparatus, comprising:
a display panel including a plurality of pixels, each of the pixels including a light emitting device; and
a controller configured to:
receive an input image data for a corresponding pixel among the pixels;
determine accumulated stress data applied to the light emitting device in the corresponding pixel due to an accumulation of image implemented in the corresponding pixel while being driven;
determine a stress compensation gain corresponding to the accumulated stress data;
determine a target compensation gain based on the stress compensation gain and at least one of a lower limit compensation gain and an upper limit compensation gain; and
output a corrected input image data based on the input image data and the target compensation gain for driving the corresponding pixel,
wherein a set range of the target compensation gain comprises a timer lower limit representing the lower limit compensation gain, a timer upper limit representing the upper limit compensation gain, and a gain region surrounded by the timer lower limit and the timer upper limit in a target compensation gain graph.