公开(公告)号：US20210049974A1

公开(公告)日：2021-02-18

申请号：US17089487

申请日：2020-11-04

Applicant: LG Display Co., Ltd.

Inventor： Jin-Sung KIM ,  Gyeong-Hwan KIM

IPC: G09G3/36 ,  G09G3/3275 ,  G09G3/20

Abstract: A display interface device capable of reducing power consumption is disclosed. In the display interface device, a timing controller configured to compare input pixel data in horizontal line units and operate in a low power mode according to a result of comparison between an input time of horizontal lines having the same pixel data and a reference time in the horizontal line units. The timing controller operates in any one of a first low power mode for transmitting a training pattern and a second low power mode including a first duration during which data transmission and reception are stopped and a second duration during which the training pattern is transmitted, according to the result of comparison between the input time of horizontal lines having the same pixel data and the reference time.

公开(公告)号：US20190129564A1

公开(公告)日：2019-05-02

申请号：US16115497

申请日：2018-08-28

Applicant: LG Display Co., Ltd.

Inventor： Min-Ki KIM ,  Jin-Sung KIM

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/04166 ,  G06F3/044 ,  G06F3/0443 ,  G09G3/3611 ,  G09G3/3666 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2354/00

Abstract: The present disclosure relates to a touch display device capable of adaptively controlling a touch sensing period and a data writing period for each area according to whether touch has occurred. A timing controller in a touch display device time-divides each frame into a plurality of unit periods using a touch synchronization signal, time-divides each unit period into a data writing period in which one of a plurality of pixel blocks of a pixel array is scanned and a touch sensing period in which one of a plurality of touch blocks of a touch electrode array is scanned, receives touch coordinate information from an MCU, defines a panel as a touched area and an untouched area, and controls a first touch sensing period in which the touched area is scanned to increase to be longer than a second touch sensing period in which the untouched area is scanned.

公开(公告)号：US20190197979A1

公开(公告)日：2019-06-27

申请号：US16219304

申请日：2018-12-13

Applicant: LG Display Co., Ltd.

Inventor： Jin-Sung KIM ,  Gyeong-Hwan KIM

IPC: G09G3/36 ,  G09G3/3275

CPC classification number: G09G3/3685 ,  G09G3/3275 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0276 ,  G09G2320/0673 ,  G09G2330/021

Abstract: A display interface device capable of reducing power consumption is disclosed. In the display interface device, a timing controller configured to compare input pixel data in horizontal line units and operate in a low power mode according to a result of comparison between an input time of horizontal lines having the same pixel data and a reference time in the horizontal line units. The timing controller operates in any one of a first low power mode for transmitting a training pattern and a second low power mode including a first duration during which data transmission and reception are stopped and a second duration during which the training pattern is transmitted, according to the result of comparison between the input time of horizontal lines having the same pixel data and the reference time.