Title:
CAPACITIVE TOUCH CONTROL SENSING DEVICE CONTROLLED USING LOGIC CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2017/132781
Kind Code:
A1
Abstract:
A capacitive touch control sensing device controlled using a logic circuit. The device comprises a cover plate (1) provided with several key regions, and a capacitive sensing layer (2), a line layer (3) and a touch key circuit are successively stacked under the key regions; the touch key circuit contains a capacitive measurement circuit (4) and a logic control circuit (5); and a ground line (8) and a signal line (7) capacitively drawn from the capacitive sensing layer (2) are respectively connected to a ground line and a respective signal line of the line layer (3), the corresponding signal line and a parallel identification line of the line layer (3) are connected to an input pin of a chip TCH of the capacitive measurement circuit (4), a signal output pin of the chip TCH and an identification line output pin of the capacitive measurement circuit (4) are connected to a signal output pin and an identification line input pin of a logic module chip of the logic control circuit (5), and the signal output pin of the logic module chip of the logic control circuit (5) is connected to a central processor of the line layer (3). The touch control sensing device can filter an incorrect sensing state by means of sensing states of a logic circuit processing signal line and an identification line thereof so as to increase contact intensity.
Inventors:
ZHENG JIANQING (CN)
HU JICHENG (CN)
HU JICHENG (CN)
Application Number:
PCT/CN2016/000106
Publication Date:
August 10, 2017
Filing Date:
March 04, 2016
Export Citation:
Assignee:
ZHENG JIANQING (CN)
International Classes:
G06F3/041; H03K17/96
Foreign References:
| CN102782626A | 2012-11-14 | |||
| CN203057104U | 2013-07-10 | |||
| CN201898497U | 2011-07-13 | |||
| US20120160657A1 | 2012-06-28 | |||
| CN201571037U | 2010-09-01 |
Attorney, Agent or Firm:
SHANGHAI JINGHU PATENT FIRM (CN)
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