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Title:
ADDRESSING-BASED CAPACITIVE TOUCH SCREEN TOUCH DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/031207
Kind Code:
A1
Abstract:
An addressing-based capacitive touch screen touch detection method, comprising: an electrode group comprising M induction electrodes is provided in a touch region; a signal line and a gating circuit are provided in a peripheral region, a main body of the gating circuit is an M×N TFT array, each TFT row comprises N TFTs having source electrodes and drain electrodes connected in series end to end, and each induction electrode is connected to the signal line by means of one TFT row; each TFT column is provided with a first control line and a second control line; step (1), controlling an on/off state of each TFT by means of level inputs of the first control line and the second control line of each TFT column, so that a certain or some induction electrodes are in an input or output state; step (2), electrically connecting a capacitor principle-based external detection circuit to the signal line to detect a response of each induction electrode; and step (3), analyzing to obtain a touch position and a touch action of a finger. The method can realize flexible gating of different induction electrodes, thereby improving the detection sensitivity and the detection efficiency.

Inventors:
LYU YUEMIN (CN)
SHEN YI (CN)
YANG QIUQIANG (CN)
ZHENG QINGJIAO (CN)
Application Number:
PCT/CN2022/000125
Publication Date:
February 15, 2024
Filing Date:
August 26, 2022
Export Citation:
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Assignee:
SHANTOU GOWORLD DISPLAY TECH CO LTD (CN)
SHANTOU GOWORLD DISPLAY PLANT 2 CO LTD (CN)
SHANTOU GOWORLD DISPLAY CO LTD (CN)
International Classes:
G06F3/041
Foreign References:
CN106775098A2017-05-31
CN112835475A2021-05-25
CN113190136A2021-07-30
US20050162408A12005-07-28
Attorney, Agent or Firm:
SHANTOU CHAORUI PATENT CO., LTD. (CN)
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