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Touch display device and touch and display scanning method thereof

A technology of touch display device and display scanning, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc. It can solve problems such as horizontal line interference on the display screen, and achieve the effect of improving work efficiency and increasing execution frequency

Inactive Publication Date: 2019-03-26
ILI TECH HLDG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Such a mode can effectively increase the frequency of touch detection, but it is prone to the interference of horizontal lines (H-line) on the display screen
Moreover, such a mode needs to set up a buffer to temporarily store the display data of the display screen

Method used

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  • Touch display device and touch and display scanning method thereof
  • Touch display device and touch and display scanning method thereof
  • Touch display device and touch and display scanning method thereof

Examples

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Embodiment Construction

[0035] Please refer to figure 1 , figure 1 A flowchart showing the operation of the touch and display scanning method according to an embodiment of the present invention. figure 1 The method flow is applicable to a touch display device. Wherein, in step S110, a picture frame time period is distinguished as a first sub-time period and a second sub-time period, and, in step S120, multiple display scan lines in the first sub-time period are A part of the scanning lines perform a display scanning operation, and perform a touch detection operation on the touch display device. Next, in step S130, a display scan operation is performed on a plurality of second partial scan lines other than the first partial scan line among the plurality of display scan lines in the second sub-time period, and a touch detection is performed on the touch display device action.

[0036] To illustrate in detail, in step S120 , by performing a display scan operation on the plurality of first partial sc...

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Abstract

The invention provides a touch display device and a touch and display scanning method thereof. The touch and display scanning method includes: distinguishing the frame time period from the first sub-period and the second sub-period; performing a display scanning action on the plurality of display scan lines in the plurality of display scan lines in the first sub-period, and Performing a touch detection operation on the touch display device; performing a display scan operation on the plurality of second partial scan lines in the display scan line in the second sub-period, and performing a touchdetection operation on the touch display device .

Description

technical field [0001] The present invention relates to a touch display device and its touch and display scanning method, in particular to a touch display device capable of increasing the scanning frequency of touch detection and its touch and display scanning method. Background technique [0002] With the advancement of electronic technology, providing a touch interface on a display panel has become a common human-machine interface for electronic devices today. [0003] In an integrated touch display device, the actions of touch detection and display scanning need to be respectively performed within a set time interval. In the existing technical field, there are common long vertical mode (long V mode) and long horizontal mode (long H mode). [0004] In the long vertical mode, the touch detection is concentrated in the non-display time interval (vertical blank time interval) when the display scan is not performed. In this mode, the interference phenomenon of the horizontal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/0416
Inventor 黄宇志廖国助徐暐豪陈怡帆柯宗杰
Owner ILI TECH HLDG CORP
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