Unlock instant, AI-driven research and patent intelligence for your innovation.

Image residue eliminating alleviating method for embedded touch display device, and mobile device

A technology for touch display devices and image retention, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve problems such as image retention and charge accumulation, and achieve the effect of offsetting the effect of charge accumulation

Active Publication Date: 2017-12-26
FOCALTECH ELECTRONICS
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Over a long period of time, parasitic charges will accumulate between the adjacent first touch sensing electrodes 201 and second touch sensing electrodes 202 , resulting in charge accumulation between the first touch sensing electrodes 201 and the second touch sensing electrodes 202 . cause image retention

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image residue eliminating alleviating method for embedded touch display device, and mobile device
  • Image residue eliminating alleviating method for embedded touch display device, and mobile device
  • Image residue eliminating alleviating method for embedded touch display device, and mobile device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0060] Figure 4 It is a circuit block diagram of a mobile device according to a preferred embodiment of the present invention. Please refer to Figure 4 , the mobile device 40 includes a control circuit 400 , an embedded touch display device 401 and a display drive and touch integrated circuit 402 . The control circuit 400 is, for example, the central processing unit of the mobile device or the operating system software and hardware coordinating with the central processing unit. The in-cell touch display device 401 includes a plurality of touch sensing electrodes 403 . The above-mentioned plurality of touch sensing electrodes 403 are used to provide a display common voltage to serve as a reference voltage for each pixel during the display period. Each touch sensing electrode 403 is electrically connected to a corresponding pin of the touch integration circuit 402 through a corresponding charging and discharging path (described later in detail). In this embodiment, there a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an image residue eliminating alleviating method for an embedded touch display device, and a mobile device. The image residue eliminating alleviating method for the embedded touch display device includes the following steps: allowing the embedded touch display device to provide at least one first co-jointing electrode and one second co-jointing electrode so as to perform touch detection, wherein the first co-jointing electrode is electrically connected to a first pin of a touch control circuit through a first charging-discharging path, and the second co-jointing electrode is electrically to a second pin of the touch control circuit through a second charging-discharging path; controlling the first pin and the second pin during time except for displaying time so as to allow the voltage of the first pin to be greater than the voltage of the second pin for at least one first time period, controlling the first pin and the second pin so as to allow the voltage of the second pin to be greater than the voltage of the first pin for at least one second time period.

Description

technical field [0001] The present invention relates to a technology of an in-cell touch display device. More specifically, the present invention relates to a method for eliminating and reducing image sticking of an in-cell touch display device and a mobile device using the same. Background technique [0002] Conventional liquid crystal displays usually consist of a plurality of color or monochrome pixels filled with liquid crystal molecules and placed in front of a light source (such as a backlight) or a light reflector. Each addressable pixel of the display includes a liquid crystal cell placed closest to the two electrodes. By setting a voltage between two electrodes, the electric field strength between the electrodes is changed. The strength of this electric field is such that the molecules within the liquid crystal cell assume a particular orientation relative to the strength of the electric field (ie, either parallel or perpendicular to the electric field, or some ang...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/0416
Inventor 黄圣嘉杨鹤年
Owner FOCALTECH ELECTRONICS