公开(公告)号：US20240212576A1

公开(公告)日：2024-06-27

申请号：US18534387

申请日：2023-12-08

Applicant: LG DISPLAY CO., LTD.

Inventor： Dong Kyu LEE ,  Yong Won JO

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2096 ,  G09G3/2007 ,  G09G3/3233 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/028 ,  G09G2320/0673 ,  G09G2330/021

Abstract: The present disclosure relates to a display device. The display device includes: a first source driver IC configured to receive pixel data to be written into sub-pixels of a first display area and a gamma compensation voltage for each grayscale and output a data voltage to be supplied to data lines of the first display area; a second source driver IC configured to receive pixel data to be written into sub-pixels of a second display area and the gamma compensation voltage for each grayscale and output a data voltage to be supplied to data lines of the second display area; a first programmable gamma IC configured to supply a first gamma reference voltage set to the first and second source driver ICs; and a second programmable gamma IC configured to supply a second gamma reference voltage set to the first and second source driver ICs.

公开(公告)号：US20210366343A1

公开(公告)日：2021-11-25

申请号：US17319973

申请日：2021-05-13

Applicant: LG Display Co., Ltd.

Inventor： Dae Seok OH ,  Yong Won JO ,  Yong Woo YUN

IPC: G09G3/20 ,  G09G3/3291

Abstract: A data driving circuit includes a first voltage divider circuit configured to output a gamma compensation voltage for a first color, a second voltage divider circuit configured to output a gamma compensation voltage for a second color, a third voltage divider circuit configured to output a gamma compensation voltage for a third color, a first digital-to-analog converter (DAC) configured to convert input data for the first color using the gamma compensation voltage for the first color to output a data voltage of a first channel, a second DAC configured to convert input data for the second color using the gamma compensation voltage for the second color to output a data voltage of a second channel, and a third DAC configured to convert input data for the third color using the gamma compensation voltage for the third color to output a data voltage of a third channel.

公开(公告)号：US20240177651A1

公开(公告)日：2024-05-30

申请号：US18369038

申请日：2023-09-15

Applicant: LG Display Co., Ltd.

Inventor： Ki Tae KWON ,  Yong Won JO ,  Jong Wook JANG

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2320/0233 ,  G09G2330/04

Abstract: A display panel can include a plurality of first pixel circuits configured to receive a pixel driving voltage and a reference voltage for displaying an image; and a plurality of second pixel circuits including a power line supplied with the pixel driving voltage and a reference voltage line supplied with the reference voltage, the plurality of second pixel circuits being configured to short-circuit the power line to the reference voltage line for at least some amount of time within a vertical blank period. Also, the plurality of second pixel circuits can maintain uniform luminance of the plurality of first pixel circuits.