The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 15, 2017

Filed:

Sep. 09, 2015
Applicants:

Xiamen Tianma Micro-electronics Co., Ltd., Xiamen, CN;

Tianma Micro-electronics Co., Ltd., Shenzhen, CN;

Inventor:

Yizhi Yang, Xiamen, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/041 (2006.01); G06F 3/044 (2006.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0416 (2013.01); G06F 3/044 (2013.01); G06F 3/0412 (2013.01); G09G 3/20 (2013.01); G09G 2300/0426 (2013.01); G09G 2310/0297 (2013.01);
Abstract

A drive circuit of a touch panel includes a signal selection circuit and a de-multiplexing circuit, where in a display phase, the signal selection circuit is configured to forward a display signal to the de-multiplexing circuit, which is configured to de-multiplex the display signal and transmit signals resulting from the de-multiplexing of the display signal to the data lines; and in a touch phase, the signal selection circuit is configured to forward a touch driving signal to the de-multiplexing circuit, which is configured to de-multiplex the touch driving signal and transmit signals resulting from the de-multiplexing of the touch driving signal to the data lines, so that the pulse signals on the data lines are identical to the pulse signals on the touch driving signal lines and touch electrodes in the touch phase due to the signal selection circuit.


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