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Method for scanning 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 prolonged touch screen scanning time, reduced execution efficiency, and impact on reporting rate, etc., to achieve smooth user experience. , The effect of improving execution efficiency and fast reporting rate

Active Publication Date: 2013-01-16
SUZHOU PIXCIR MICROELECTRONICS
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  • Claims
  • Application Information

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Problems solved by technology

Since the above-mentioned scanning method is to scan all the sensing areas line by line, if the number of sensing areas is too large, the scanning time of the touch screen will be prolonged and the amount of calculation will also increase, resulting in a significant decrease in its execution efficiency and affecting the reporting points. Rate

Method used

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  • Method for scanning touch screen
  • Method for scanning touch screen

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] The touch screen of the present invention includes a capacitance matrix composed of several electrodes, which involves two scanning modes, one is a double-end scanning mode, and the other is a single-end scanning mode. The so-called double-ended scanning refers to scanning the rows and columns of the touch screen capacitance matrix respectively. When scanning the rows of the touch screen capacitance matrix, two rows or two columns are scanned at the same time at a time to obtain the capacitance difference between the two rows or two columns; The so-called single-ended scanning refers to scanning the rows and columns of the touch screen capacitance matrix respectively. When scanning the rows of the touch screen capacitance matrix, one row or one column is scanned at a time to obtain the capacitance difference between the row or column and the r...

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Abstract

The invention relates to a method for scanning a touch screen. The method is characterized in that a mode of combining double-end scanning with single-end scanning is adopted, a method for successively scanning regions of the touch screen one by one is adopted for single-end scanning, and whether the touch screen is scanned integrally or locally is discussed according to conditions. Accordingly, the scanning time is shortened, calculation is effectively reduced, the execution efficiency is improved to the great extent, the point reporting rate is high, and user experience is smooth.

Description

technical field [0001] The invention relates to a scanning method of a touch screen, in particular to a scanning method of a capacitive touch screen. Background technique [0002] With the development of science and technology, touch screens have gradually replaced mechanical button panels as new operating interfaces for electronic devices such as mobile phones and notebooks. Currently, touch screens mainly include resistive touch screens, infrared touch screens, and capacitive touch screens, all of which obtain coordinates in different ways. The capacitive touch screen uses conductive materials such as fingers and stylus to approach or touch the touch screen to change the capacitance value of the touch screen. Wait until the position of the touch screen is touched, and perform the touch operation corresponding to the touched position. [0003] Since the capacitive touch screen has the characteristics of multi-finger touch, which can provide humanized operation, it has bee...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 何丽金莉宋飞樊永召
Owner SUZHOU PIXCIR MICROELECTRONICS
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