公开(公告)号：US11545095B2

公开(公告)日：2023-01-03

申请号：US17112888

申请日：2020-12-04

申请人： LG Display Co., Ltd.

发明人： Junwoo Yun ,  Taegung Kim

IPC分类号： G09G3/3291 ,  G09G3/20 ,  G09G3/3233

摘要： One or more embodiments of the present disclosure provides a display device. The display device includes a display panel which includes a plurality of pixels; a threshold voltage sensing circuit which senses a threshold voltage of a light emitting diode included in the plurality of pixels, a data compensating circuit which corrects a data signal in accordance with a variation of the threshold voltage and accumulated data to generate a corrected data signal, and a data driver which generates a data voltage in accordance with the corrected data signal to output the data voltage to the display panel, in which the data compensating circuit periodically corrects the data signal in accordance with a look-up table in which a relationship of the variation of the threshold voltage and the accumulated data is described during an aging period to generate the corrected data signal. The display device according to the present disclosure improves an image quality of the display.

公开(公告)号：US20240249662A1

公开(公告)日：2024-07-25

申请号：US18542257

申请日：2023-12-15

申请人： LG Display Co., Ltd.

发明人： Suncheol Noh ,  Taegung Kim ,  Junwoo Yun

IPC分类号： G09G3/20 ,  G09G3/3233

CPC分类号： G09G3/2096 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0202 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247

摘要： A display device includes a display panel including a plurality of pixels, the plurality of pixels driven during a first frame with a first driving frequency and a second frame with a second driving frequency, a frequency generation unit configured to generate first frequency information indicative of the first driving frequency of the first frame after an end of the first frame, a gain generation unit configured to receive the first frequency information indicative of the first driving frequency generated by the frequency generation unit and generate a first gain value for the second frame based on the first driving frequency of the first frame indicated in the received first frequency information, and a video data output unit configured to output video data generated based on the first gain value to a data driving unit during the second frame.