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Embedded touch screen and driving method thereof

A technology of embedded touch screen and driving method, which can be applied to instruments, computing, electrical digital data processing, etc., can solve problems such as increasing scanning time, and achieve the effect of reducing scanning time and reducing mutual interference.

Inactive Publication Date: 2015-02-25
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, in this way, the touch circuit needs to start scanning after the display circuit in the first display area scans, and the display circuit in the second display area needs to wait until the full screen scan of the touch circuit before starting to scan, which increases the Scan time

Method used

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  • Embedded touch screen and driving method thereof
  • Embedded touch screen and driving method thereof
  • Embedded touch screen and driving method thereof

Examples

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Embodiment Construction

[0022] The present invention will be described in detail below with reference to the drawings and embodiments.

[0023] In an embodiment of the method for driving an in-cell touch screen of the present invention, the in-cell touch screen is an in-cell touch screen, the display technology uses liquid crystal display technology, and the touch technology uses capacitive touch technology. Therefore, in The -cell touch display screen includes a display circuit for realizing a display function and a touch circuit for realizing a touch function. The display circuit includes scan lines, data lines, thin film transistors TFT, and pixel electrodes for driving the display of the liquid crystal panel, and the touch circuit includes touch drive electrodes and touch sensing electrodes for realizing touch functions. Certainly, the display technology of the embedded touch screen may also adopt other display technologies such as OLED display technology, and the touch technology may also adopt ...

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PUM

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Abstract

The invention discloses an embedded touch screen and a driving method thereof. The method comprises the steps of scanning a display circuit in one display region in a scanning cycle and meanwhile scanning a touch circuit in the other display region. In this way, the situation that a display circuit and a touch circuit in the same display region work simultaneously can be avoided, and therefore mutual interference between the display circuit and the touch circuit can be reduced, and touch accuracy is improved; besides, the different circuits in the two display regions can be scanned simultaneously so that scanning time can be shortened.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to an embedded touch screen and a driving method thereof. Background technique [0002] According to different structures, touch screens are generally divided into out-cell touch screens and in-cell / on-cell touch screens. Out-cell touch screens are formed by laminating an independent touch panel and an independent display panel. As a result, the embedded touch screen is to embed the touch circuit into the display panel to realize the integration of the touch panel and the display panel. Embedded touch screens are divided into in-cell touch screens and on-cell touch screens. In-cell touch screens are technologies that embed touch circuits into liquid crystal pixels, while on-cell touch screens are technologies that embed touch circuits into color filter elements and polarized light. between the boards. Compared with other touch screens, the embedded touch screen can make the whole p...

Claims

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Application Information

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IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 白宇杰杨翔纪飞林
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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