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An infrared touch screen, its touch detection method and display device

An infrared touch and touch position technology, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve problems such as restricting applications, increasing the overall volume of the infrared touch screen, and increasing manufacturing costs.

Active Publication Date: 2018-03-16
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the display device in the existing infrared touch screen adopts the specific structure of infrared emitters and infrared receivers arranged on four sides, each infrared emitter corresponds to an infrared receiver. To achieve higher resolution, it is necessary to increase the infrared emission In this way, the overall volume of the infrared touch screen is increased, so the volume of the existing infrared touch screen is limited by the number of infrared emitters and infrared receivers, which limits the size of the infrared touch screen. resolution, which increases the manufacturing cost and limits the application in larger size display devices

Method used

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  • An infrared touch screen, its touch detection method and display device
  • An infrared touch screen, its touch detection method and display device
  • An infrared touch screen, its touch detection method and display device

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Embodiment Construction

[0031] The specific implementations of the infrared touch screen provided by the embodiments of the present invention, its touch detection method and display device will be described in detail below with reference to the accompanying drawings.

[0032] Wherein, the size and shape of each device in the drawings do not reflect the real proportion of the infrared touch screen, and the purpose is only to schematically illustrate the content of the present invention.

[0033] An embodiment of the present invention provides an infrared touch screen, such as figure 1 and figure 2 As shown, it includes: a display device 100, a pair of infrared emitters 200 and a first infrared receiver 300 arranged on either side of the display device 100; Multiple infrared rays on the light emitting side, the first infrared receiver 300 detects the infrared rays emitted by the infrared emitter 200 and reflected by the touch position;

[0034] The infrared touch screen also includes: a second infra...

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Abstract

The invention discloses an infrared touch screen, a touch detection method thereof and a display device. The infrared touch screen includes a display device, a pair of infrared emitters and a first infrared emitter arranged on either side of the display device a receiver; wherein, the infrared transmitter emits a plurality of infrared rays in a scattered shape and covers the light-emitting side of the display device, and the first infrared receiver detects the infrared rays emitted by the infrared transmitter and reflected by the touch position; The second infrared receivers provided on the other sides of the display device except the infrared transmitters and corresponding to the infrared rays one-to-one. The positions irradiated on the corresponding sides are the same. The above-mentioned infrared touch screen provided by the embodiment of the present invention uses only one infrared transmitter, which can not only improve the resolution, realize accurate touch operation, but also effectively reduce the production cost, and can be applied for larger size display devices.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to an infrared touch screen, its touch detection method and a display device. Background technique [0002] At present, the types of touch screens can be divided into resistive, capacitive, sonic, infrared and optical according to the induction principle. advantages and are widely used. [0003] Existing infrared touch screens use the infrared matrix densely distributed in the X and Y directions to detect and locate the user's touch. The infrared touch screen includes a display device, and infrared emitters arranged on any adjacent two sides of the display device In addition to the infrared emitters, the infrared receivers arranged on adjacent sides and corresponding to the infrared emitters form a horizontal and vertical infrared matrix. When the user touches the display device, the finger will block the horizontal and vertical red lines passing through the touch position, so that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
CPCG06F3/0421G06F3/0428G06F3/0418G06F3/042G06F3/0412
Inventor 姚树林
Owner BOE TECH GRP CO LTD
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