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Device and method for realizing approach switch function by utilizing capacitive touch screen

A capacitive touch screen and proximity switch technology, applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., can solve the problems of performance damage and high cost, and achieve the effect of stable performance and low cost

Inactive Publication Date: 2013-05-15
SUZHOU PIXCIR MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The proximity switch widely used in touch screen mobile phones, as an independent component, is controlled by the CPU, the cost is relatively high, and it is easily affected by the external environment to cause performance damage. Therefore, it is necessary to provide users with a new type of proximity switch. switch to solve the above problem

Method used

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  • Device and method for realizing approach switch function by utilizing capacitive touch screen

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Embodiment Construction

[0012] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0013] see figure 1 , the embodiment of the present invention includes:

[0014] A device utilizing a capacitive touch screen to realize a proximity switch, comprising: a capacitive touch screen 1, a display screen positioned below the capacitive touch screen 1, a touch chip and a CPU, the capacitive touch screen 1 is provided with an analog proximity switch 2, the Both the capacitive touch screen 1 and the analog proximity switch 2 are connected to the corresponding pins of the touch chip, and the display screen and the touch chip are connected to the CPU. Taking the touch-sensitive mobile phone as an example, the handset 3, camera 4 and other ...

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Abstract

The invention discloses a device for realizing an approach switch function by utilizing a capacitive touch screen, and further discloses a method for realizing the approach switch function by utilizing the capacitive touch screen. The device and the method for realizing the proximity switch function by utilizing the capacitive touch screen comprise a touch control chip, the capacitive touch screen, a display screen and a central processing unit (CPU), wherein the display screen is arranged below the capacitive touch screen, and the CPU is connected with the touch control chip and the display screen; and the capacitive touch screen is provided with an analog approach switch which is connected with corresponding pins of the touch control chip. Because the prior capacitive touch screen is improved, and an analog approach switch device is provided, the approach switch function is realized, and the device for realizing the proximity switch function by utilizing the capacitive touch screen is low in cost and stable in performance.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a device and method for realizing a proximity switch function by using a capacitive touch screen. Background technique [0002] Touch screens, especially capacitive touch screens that can realize multi-touch, have been recognized by the society and have begun to be popularized on electronic devices such as personal digital processing (PDA), mobile phones, handheld computers, and tablet computers. In touch screen mobile phones, the application of proximity switches is relatively common, mainly in the process of answering calls. Proximity switches are divided into capacitive proximity switches, inductive proximity switches, etc. Capacitive proximity switches are sensors with switching output and no mechanical contact with the detected object, which are composed of high-frequency oscillators and amplifiers. A capacitor is formed between the detection surface of the sensor and the groun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 杨坤
Owner SUZHOU PIXCIR MICROELECTRONICS
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