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Touch screen scanning method and device based on display content and touch screen

A technology for displaying content and scanning methods, which is applied in the input/output process of data processing, instruments, and electrical digital data processing, etc., and can solve problems such as reduced efficiency, affecting touch body sensation, and power waste, and increases the number of scans and improves touch. Somatosensory, scanning power saving effect

Inactive Publication Date: 2014-10-08
山东芯艺电子科技有限公司
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AI Technical Summary

Problems solved by technology

Therefore, the scanning of these blank cells is invalid, resulting in a waste of power and a reduction in efficiency, which seriously affects the touch sensation

Method used

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  • Touch screen scanning method and device based on display content and touch screen
  • Touch screen scanning method and device based on display content and touch screen

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] Such as figure 1 As shown, taking a display screen as an example to illustrate the scanning process and effect of the present invention, the touch screen is divided into N*M cells (N and M are positive integers), and the specific scanning steps are as follows:

[0021] (1) Obtain the content currently displayed on the screen by the touch screen driver, read all event cells corresponding to the display content and the touch probability of each cell, and download them to the touch screen control integrated circuit;

[0022] (2) The touch screen control integrated circuit dynamically counts the touch probability of each cell, adds it to the downloaded event cell probability to obtain the latest event cell probability, and then performs full-frame scanning on the touch screen to scan all N*M cells;

[0023] (3) Divide all event cells into K subsets according to the touch probability, the touch probability is the same as a subset, and the Ith subset contains L i The probabi...

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Abstract

The invention relates to the technical field of touch screen scanning, in particular to a touch screen scanning method and device based on display content and a touch screen. Event grid units usually touched in each display frame are counted in advance, the touch probability of the event grid units is counted, the event grid units and the touch probability are called according to the display content of the screen, after full-frame scanning is carried out on the screen, a scanning sequence special for the event grid units is established according to the touch probability, the event grid units responding to touch are scanned many times, and the full-frame scanning and local scanning for the event grid units are periodically carried out. According to the method, the total scanning amount is effectively reduced, the scanning power is saved, the number of scanning times of the event grid units is greatly increased and the touch body feeling is obviously enhanced.

Description

technical field [0001] The invention relates to the technical field of touch screen scanning, in particular to a touch screen scanning method based on screen display content, a scanning device and a touch screen. Background technique [0002] The application of touch screens is becoming more and more popular, and a large number of touch screens are used in mobile phones, tablet computers (PADs), laptop computers, desktop computer displays, and vehicle display screens. In the touch screen application, the recognition of the position of the touch point and the number of touch points is to firstly divide the screen into several cells, and then scan each cell in a certain order or method to identify whether the position of each cell is is touched, and finally the process of counting the total number of touched cells is completed. Scanning all cells once is called scanning a frame. In the existing touch screen control integrated circuit, every time a frame is scanned, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 董传友周艳
Owner 山东芯艺电子科技有限公司
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