Touch device and touch driving method

A technology of touch device and touch panel, which is applied in the directions of instruments, computing, electrical digital data processing, etc. It can solve problems such as high refresh rate, lower frame rate, and affect the display effect of the screen, and achieve high refresh rate and lower power consumption.

Inactive Publication Date: 2014-09-24
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When t is small, the scanning of Tx and Rx will not be completed, so it is necessary to increase t appropriately. At present, the direct way to increase t is to increase the scanning time of one frame, but this means reducing the frame rate and will affect the ...

Method used

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  • Touch device and touch driving method
  • Touch device and touch driving method

Examples

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Embodiment Construction

[0044]Embodiments of the present invention provide a touch device and a touch driving method, which are used to realize that the touch device works at a higher refresh rate when not being touched.

[0045] The touch device provided by the specific embodiments of the present invention and its specific working process will be described in detail below in conjunction with the accompanying drawings.

[0046] Such as Figure 4 As shown, a specific embodiment of the present invention provides a touch device, which includes a touch panel 40, a timing controller 41, a touch controller 42, a controller 43 and a sensor 44, wherein:

[0047] The sensor 44 is used to detect whether there is an object touching or approaching the touch panel 40, and when there is no object touching or approaching the touch panel 40, the first indication signal is output to the controller 43; or when approaching the touch panel 40, outputting a second indication signal to the controller 43;

[0048] The co...

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PUM

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Abstract

The invention discloses a touch device and a touch driving method which are used for realizing that the touch device works at a higher refresh rate in a non-touch state. The touch device comprises a touch panel, a time sequence controller, a touch control controller, a controller and a sensor, wherein the sensor is used for detecting whether an object which contacts with or is close to the touch panel exists or not; when the object which contacts with or is close to the touch panel does not exist, a first indication signal is output to the controller; when the object which contacts with or is close to the touch panel exists, a second indication signal is output to the controller; the controller is used for receiving the first indication signal so as to control the touch control controller not to work, and controlling the time sequence controller to output a first scanning signal; the controller is also used for receiving the second indication signal to control the time sequence controller to output a second scanning signal, and controlling the touch control controller to start working; the scanning frequency of the first scanning signal is higher than the scanning frequency of the second scanning signal; moreover, the first scanning signal and the second scanning signal are both display scanning signals of the touch panel.

Description

technical field [0001] The invention relates to the technical field of displays, in particular to a touch device and a touch driving method. Background technique [0002] Compared with the traditional external capacitive touch screen structure, the in-cell capacitive touch screen in the prior art can save a touch substrate and make the whole display module lighter and thinner. The schematic diagram of the structure of the liquid crystal display screen with in-cell touch technology is as follows: figure 1 As shown, the touch driving electrodes (Tx) and touch sensing electrodes (Rx) are fabricated on the glass substrate on the array substrate side of the liquid crystal display panel, wherein the Tx line is shared with the common electrode (Vcom) line, and the in-cell structure Various parasitic capacitances and coupling capacitances will be generated between the capacitive touch screen Tx and Rx and the thin film transistor (Thin Film Transistor, TFT) display device. Gate1, G...

Claims

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Application Information

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IPC IPC(8): G06F3/044G02F1/1333
CPCG06F3/0421G06F3/0436G06F3/0412G06F2203/04101G06F2203/04106G06F3/04166
Inventor 马韬张大宇
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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