OLED TOUCH CONTROL DRIVE CIRCUIT, METHOD, AND TOUCH CONTROL PANEL

WIPO Patent Application WO/2018/219021

A1

An organic light-emitting diode (OLED) touch control drive circuit, method, and a touch control panel. The touch control drive circuit comprises: a drive transistor (DT), wherein the control end thereof is used for receiving a digital signal (V DATA) and first end thereof is used for receiving a power supply signal (VDD); touch electrodes (TX&RX) used for transmitting a touch control signal (V T); a light emitting element (OLED), a first electrode thereof being connected to a second end of the drive transistor (DT) and a second electrode thereof forming a parasitic capacitor (C CT) together with the touch control electrodes (TX&RX); and a control unit used for responding to the control signal (V EN) so as to transmit a compensation signal (V MOD) to the second end of the drive transistor, wherein the power supply signal (VDD), the digital signal (V DATA), the touch control signal (V T) and the compensation signal (V MOD) are synchronous modulation signals at a touch control stage. The light emitting brightness of the light emitting element (OLED) is not affected at the same time that a load capacitance is eliminated.

CHENG CHIH JEN (CN)
DING XIAOLIANG (CN)
LI CHANGFENG (CN)
WANG PENGPENG (CN)
LIU WEI (CN)
HAN YANLING (CN)
CAO XUEYOU (CN)
ZHANG PING (CN)

PCT/CN2018/079669

December 06, 2018

March 20, 2018

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BOE TECHNOLOGY GROUP CO LTD (CN)

G09G3/3208

CN107016960A	2017-08-04
CN106448558A	2017-02-22
CN102968954A	2013-03-13
CN104835454A	2015-08-12
CN102346997A	2012-02-08
CN101587939A	2009-11-25
JP2005235496A	2005-09-02

BEIJING INTELLEGAL INTELLECTUAL PROPERTY AGENT LTD. (CN)

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