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Drive circuit, touch display device and electronic equipment

A driving circuit, touch display panel technology, applied in the direction of electrical digital data processing, instruments, calculations, etc., can solve the problems of signal interference, insufficient touch detection, large parasitic capacitance, etc., to improve the detection signal noise Ratio, reduce charge and discharge power, improve the effect of utilization

Inactive Publication Date: 2021-05-28
SHENZHEN XIHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the resolution of touch display devices increases gradually, the line gap and frame gap will be significantly compressed, and correspondingly, the time for touch detection will also be compressed, which will easily cause the problem of insufficient touch detection.
[0004] However, in the process of image display refresh, touch detection is performed at the same time, there are problems such as signal interference and large parasitic capacitance, which easily affects the signal-to-noise ratio of touch detection.

Method used

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  • Drive circuit, touch display device and electronic equipment
  • Drive circuit, touch display device and electronic equipment
  • Drive circuit, touch display device and electronic equipment

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Embodiment Construction

[0051] In order to make the above objects, features and advantages of the present application more obvious and understandable, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0052] Touch Display Panel Touch Display Panel Touch Display Panel In order to make the above purpose, features and advantages of the present application more obvious and understandable, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. For convenience or clarity, the thickness and size of each layer shown in the drawings and the number of re...

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Abstract

The invention provides a drive circuit, a touch display device and electronic equipment. The drive circuit comprises a control unit, a scanning line driving unit, a data line driving unit and a touch detection unit. The control unit is used for controlling the data line driving unit to provide the pixel voltage for the pixel points when the scanning line driving unit activates the pixel units, and is also used for controlling the touch detection unit to carry out touch detection based on an oscillation signal after the pixel points are charged by the pixel voltage; and the control unit generates the oscillation signal during touch detection, so that a signal on the touch display panel is a signal synchronous with the oscillation signal. The touch display device comprises the drive circuit. The electronic equipment comprises the touch display device.

Description

technical field [0001] The present application relates to the technical field of touch display, and in particular to a driving circuit, a touch display device and electronic equipment. Background technique [0002] Smart terminals (such as mobile phones) are becoming increasingly thinner and full-screen. In order to meet the requirements of trend development, In cell technology has gradually become the mainstream technology for display and touch. In the In cell technology, the common electrodes in the LCD display screen are also reused as self-capacitance sensing electrodes, so that the touch function can be realized while realizing image display. [0003] When the common electrode is also used as the touch detection electrode, in the prior art, the touch sensing is performed on the touch sensing electrodes in the row gap, so as to reduce the interference between the image display data and the touch detection. However, with the gradual improvement of the resolution of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/04166G06F3/0412G06F3/0446G06F3/0416
Inventor 王洁
Owner SHENZHEN XIHUA TECH CO LTD
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