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Scanning method of capacitive touch screen and capacitive touch screen

A technology of capacitive touch screen and scanning method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problem of low reporting rate, achieve the improvement of reporting rate and touch effect , the effect of reducing power consumption

Active Publication Date: 2017-09-15
INTERFACE TECH CHENGDU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a capacitive touch screen that can effectively reduce the power consumption of capacitive touch screen scanning and increase the reporting rate for the problems of high power consumption and low reporting rate of capacitive touch screen scanning. Screen scanning method and capacitive touch screen

Method used

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  • Scanning method of capacitive touch screen and capacitive touch screen
  • Scanning method of capacitive touch screen and capacitive touch screen
  • Scanning method of capacitive touch screen and capacitive touch screen

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Embodiment Construction

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0024] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom", "top" and similar expressions...

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Abstract

The invention relates to a scanning method of a capacitive touch screen and the capacitive touch screen. The scanning method of the capacitive touch screen comprises the steps as follows: performing global scanning to acquire at least one touch point; setting the route range of all the acquired touch points as a central area, and only scanning routes expanding for preset values from two adjacent ends of the central area to serve as point reporting routes. With the adoption of the scanning method, the number of times of global scanning can be reduced, so that the power consumption of the capacitive touch screen in the scanning process can be effectively reduced, meanwhile, the point reporting rate of touch points is effectively increased, and touch tracks can be reduced more actually. The touch effect of the capacitive touch screen can be improved while the touch experience of a user can be enhanced.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a scanning method of a capacitive touch screen and the capacitive touch screen. Background technique [0002] When the capacitive touch screen detects the touch signal, it detects the touch point by using the axis-coordinate sensing unit matrix formed on the display screen. For example, a capacitive touch screen includes Tx lines and Rx lines intersecting each other, wherein a single touch point corresponds to a node where the Tx lines and Rx lines intersect. Specifically, in the touch sensor and touch screen drive circuit formed between the Tx line and the Rx line, the touch screen drive circuit provides a drive signal to the Tx line, samples the voltage of the touch sensor received through the Rx line, and converts the sampled voltage to Digital data, through data analysis and calculation to determine the position of the touch point on the capacitive touch screen. [0003] How...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/044G06F2203/04111
Inventor 廖致霖管益章
Owner INTERFACE TECH CHENGDU CO LTD
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