Application-based touch screen scanning method and device and touch screen

A scanning method and touch screen technology, applied in the input/output process of data processing, instruments, electrical and digital data processing, etc., can solve the problems of affecting the sense of touch, waste of power, and reduced efficiency, so as to improve the sense of touch and save scanning power. , the effect of increasing the number of scans

Inactive Publication Date: 2014-10-15
山东芯艺电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Application-based touch screen scanning method and device and touch screen
  • Application-based touch screen scanning method and device and touch screen

Examples

Experimental program
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Embodiment Construction

[0021] Such as figure 1 As shown, taking a certain application 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:

[0022] (1) Obtain the application currently displayed on the screen by the touch screen driver, read all event cells corresponding to the application and the touch probability of each cell, and download them to the touch screen control integrated circuit;

[0023] (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 scans the screen cell in full frame to scan all N*M cells Yuan;

[0024] (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 probabili...

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Abstract

The invention relates to the technical field of touch screen scanning, in particular to an application-based touch screen scanning method and device and a touch screen. An event cell, which is always touched, of each application and touch probability thereof are calculated in advance; the event cell and the touch probability of the application are called for each scan according to the opened application; after the screen is subjected to full-frame scanning, a scanning sequence which only aims at the event cell is established according to the touch probability, the event cell which responds to touch is scanned for multiple times, and the full-frame scanning and local scanning which aims at the event cell are periodically carried out. The method effectively reduces a total scanning amount and saves scanning power, and the scanning frequencies of the event cell are greatly increased, and touch motion sensing is obviously improved.

Description

technical field [0001] The invention relates to the technical field of touch screen scanning, in particular to an application-based touch screen scanning method, 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, all cells are...

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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