TOUCH READOUT CIRCUIT, TOUCH DISPLAY PANEL AND DISPLAY DEVICE

A touch readout circuit, a touch display panel and a display device are disclosed, the touch readout circuit includes a first gating circuit, configured to control a first current signal at a first electrode of the light-emitting component; a current mirror circuit, configured to provide the first c...

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Bibliographic Details
Main Authors LIU, Yingming, YANG, Shenji, DING, Xiaoliang, LU, Pengcheng, WANG, Pengpeng, WU, Chun Wei, WANG, Haisheng, LIU, Wei, CAO, Xueyou
Format Patent
LanguageEnglish
Published 21.11.2019
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:A touch readout circuit, a touch display panel and a display device are disclosed, the touch readout circuit includes a first gating circuit, configured to control a first current signal at a first electrode of the light-emitting component; a current mirror circuit, configured to provide the first current signal and a second current signal to a signal processing circuit, a current direction of the second current signal being opposite to a current direction of the first current signal; and a signal processing circuit, configured to: receive the first current signal, the second current signal and a touch scan signal, filter the second current signal to obtain a third current signal, provide a touch readout signal to an output end of the touch readout circuit according to the third current signal, the first current signal and the touch scan signal.
Bibliography:Application Number: US201816094658