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Scanning method and device of infrared touch screen

A technology of infrared touch screen and scanning method, which is applied in the input/output process of data processing, instruments, electrical digital data processing, etc., and can solve the problems of reduced scanning efficiency, long response time, and slow touch response speed

Active Publication Date: 2017-01-25
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the case of a large infrared touch screen, because the scanning area is too large, the scanning time is longer and the response to touch is slower
And as the size of the infrared touch screen increases, the response time will become longer, greatly reducing the scanning efficiency

Method used

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  • Scanning method and device of infrared touch screen
  • Scanning method and device of infrared touch screen
  • Scanning method and device of infrared touch screen

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Embodiment Construction

[0035] Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0036] figure 1 It is a flow chart of a method for scanning an infrared touch screen according to an exemplary embodiment. Such as figure 1 As shown, the scanning method of the infrared touch screen may include the following steps.

[0037] In step S110, during the operation of the infrared touch screen, a user detection is performed in front of the infrared touch screen, and a detection result i...

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Abstract

The invention discloses a scanning method and device of an infrared touch screen. The method includes the steps that during running of the infrared touch screen, user detection is carried out on the portion in front of the infrared touch screen, and the detection result that a user exists in front of the infrared touch screen is obtained; positioning of the position of the user relative to the infrared touch screen is triggered according to the detection result that the user exists in front of the infrared touch screen, a scanning region, below a preset scanning direction, of the infrared touch screen is determined according to the position and the preset scanning direction, and subjected to infrared scanning, and a touch point in the infrared touch screen is tracked and determined. According to the scanning method and device of the infrared touch screen, a certain scanning region can be selected according to the position of the user relative to the infrared touch screen, the area of the infrared scanning region is reduced, infrared scanning delays in various scanning directions are shortened accordingly, and the infrared scanning efficiency in the infrared touch screen is improved.

Description

technical field [0001] The present disclosure relates to the field of infrared touch screens, in particular to a scanning method and device for an infrared touch screen. Background technique [0002] A touch screen is an inductive display device that can receive input signals, and provides a simple, convenient and natural user-computer interaction method for current electronic products. Among various types of touch screens, infrared touch screens have been widely used due to their advantages such as strong environmental adaptability, longer life, and more identifiable touch points. [0003] In the infrared touch screen, whether the infrared light path is blocked is detected by infrared scanning, so as to determine the touch point in the infrared touch screen. At present, the infrared scanning methods for the infrared touch screen are mainly global scanning and tracking scanning. [0004] Global scanning means that all infrared lamps scan the entire touch area of ​​the infr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/042
CPCG06F3/0416G06F3/0421
Inventor 王稳仲李新王武军曹建伟
Owner HISENSE VISUAL TECH CO LTD
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