Invention Grant
- Patent Title: In-cell touch type liquid crystal display device and method for driving the same
-
Application No.: US13727780Application Date: 2012-12-27
-
Publication No.: US10429967B2Publication Date: 2019-10-01
- Inventor: SeongHo Cho , CheonKee Shin , KyungSeok Kim
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2012-0055657 20120524
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G02F1/1333

Abstract:
The present disclosure relates to a liquid crystal display (LCD) device, and particularly, to an in-cell touch type LCD device, and a method for driving capable of preventing deterioration of picture quality and enhancing touch sensitivity, by dividing a touch block in a spatial manner, not in a time manner.The in-cell touch type liquid crystal display (LCD) device, includes: an LCD panel including a first touch block and a second touch block having a plurality of gate lines and common lines; a gate driver for applying high-potential gate driving signals to the gate lines of the first touch block; a common voltage generator for supplying common voltages (Vcom) of first and second waveforms, to the common lines of the first and second touch blocks, respectively; and a touch detection circuit for detecting a touched position on the LCD panel through the second waveform common voltages.
Public/Granted literature
- US20130314343A1 IN-CELL TOUCH TYPE LIQUID CRYSTAL DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME Public/Granted day:2013-11-28
Information query