Touch screen, radio frequency interference control method and device
A technology of radio frequency interference and control method, applied in the direction of instrument, calculation, electrical digital data processing, etc., can solve the problems of high cost, high structural design requirements of the whole machine, low reliability, etc., to improve touch sensitivity and complete machine structure requirements Low, cost-reducing effect
Active Publication Date: 2020-08-07
BYD SEMICON CO LTD
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[0006] In view of this, the embodiment of the present invention provides a touch screen, radio frequency interference control method and device to solve the problems of low reliability, high cost and high structural design requirements of the whole machine existing in the existing radio frequency interference control method
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[0026] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments ...
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The invention is applicable to the technical field of displays, and provides a touch screen and a radio frequency interference control method and device, and the radio frequency interference control method comprises the steps: carrying out radio frequency interference monitoring and touch screen channel scanning on the touch screen if detecting that the touch screen is powered on and started; If it is monitored that the touch screen generates radio frequency interference, stopping scanning of the touch screen channel, and after it is monitored that the radio frequency interference disappears,scanning the touch screen channel again to obtain interference-free scanning data; And determining the touch position of the touch screen according to the interference-free scanning data. According tothe radio frequency interference control method, the touch sensitivity of the touch screen is greatly improved, the cost is reduced, and the requirement for the overall structure is low.
Description
technical field [0001] The invention belongs to the technical field of displays, and in particular relates to a touch screen and a radio frequency interference control method and device. Background technique [0002] In recent years, as a new display and input device, touch screen has been widely used in people's work and life. With the popularization of touch screen, anti-radio frequency interference has become an important issue in its application. [0003] At present, the existing technology mainly covers the flexible printed circuit (FPC) connecting the touch screen and the control chip and the FPC connecting the connector and the control chip by adding resistance between the channel of the touch screen and the control chip. Electromagnetic shielding film to achieve anti-radio frequency interference of the touch screen. [0004] However, after a large number of tests, it was found that the above-mentioned anti-radio frequency interference method of the touch screen has ...
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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044
Inventor 黄臣杨云
Owner BYD SEMICON CO LTD