公开(公告)号：US12002402B2

公开(公告)日：2024-06-04

申请号：US18084298

申请日：2022-12-19

申请人： LX Semicon Co., Ltd.

发明人： Gi Baek Choi ,  Jong Hwi Park ,  Yong Jung Kwon ,  Jung Bae Yun

IPC分类号： G09G3/20

CPC分类号： G09G3/2007 ,  G09G2310/027 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/02

摘要： An embodiment provides a latch circuit which outputs, to a digital analog converter (DAC), a digital signal including grayscale data, the latch circuit including a first latch configured to store the digital signal and a second latch configured to output the digital signal by controlling first timing at which a level of a first signal included in the digital signal becomes an enable level, based on a center grayscale. The grayscale data includes first grayscale data and second grayscale data.

公开(公告)号：US20220157244A1

公开(公告)日：2022-05-19

申请号：US17523809

申请日：2021-11-10

申请人： LX Semicon Co., Ltd.

发明人： Yong Jung Kwon ,  Sang Min Lee ,  Jong Hwi Park ,  Jung Bae Yun

IPC分类号： G09G3/3258 ,  G09G5/00

摘要： The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.

公开(公告)号：US11749167B2

公开(公告)日：2023-09-05

申请号：US17550664

申请日：2021-12-14

申请人： LX SEMICON CO., LTD.

发明人： Jong Hwi Park ,  Gi Baek Choi ,  Yong Jung Kwon ,  Jung Bae Yun

IPC分类号： G09G3/20

CPC分类号： G09G3/2092 ,  G09G2310/0275 ,  G09G2310/061 ,  G09G2310/08

摘要： The present disclosure relates to a data drive circuit capable of increasing clock and data recovery stability by generating a clock synchronized with input data, a clock recovery method thereof, and a display drive device having the same, and the data drive circuit according to an aspect includes a receiver including a clock and data recovery part configured to recover a test data pattern from input data using an internal clock, and a data comparator configured to compare the recovered test data pattern with a predetermined reference data pattern to generate a control signal according to a degree of asynchronicity between the recovered test data pattern and the reference data pattern, wherein the clock and data recovery part recovers a clock synchronized with the input data according to the control signal, and recovers control information and image data from the input data using the recovered clock.

公开(公告)号：US11532284B2

公开(公告)日：2022-12-20

申请号：US17523809

申请日：2021-11-10

申请人： LX Semicon Co., Ltd.

发明人： Yong Jung Kwon ,  Sang Min Lee ,  Jong Hwi Park ,  Jung Bae Yun

IPC分类号： G09G3/3291 ,  G09G5/00

摘要： The present embodiment relates to a technology for driving a display device, and provides a technology in which a pixel driving device determines whether or not an overcurrent flows through a driving voltage line, and, if it is determined that an overcurrent flows therethrough, controls pixel data or an analog voltage output to a pixel so as to reduce a driving current.