Three-edge infrared touch screen
An infrared touch screen and infrared touch technology, applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve the problems of poor precision, easy dust accumulation, inconvenient installation, etc., to improve monitoring accuracy , improve positioning accuracy, simple structure
Inactive Publication Date: 2018-05-11
上海优熠电子科技有限公司
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Problems solved by technology
[0003] The existing infrared touch screens are arranged with infrared emitting tubes and infrared receiving tubes on the four sides of the screen, which has defects such as complex structure, inconvenient installation, and high cost.
And the infrared receiving tube or infrared emitting tube located under the screen is easy to accumulate dust and cause occlusion, which is not easy to ensure measurement accuracy, and is not convenient for the layout under the screen
[0004] At present, there is a set of infrared emitting arrays and infrared receiving arrays arranged oppositely on the left and right sides of the touch area. This kind of bilateral infrared touch screen lacks the infrared emitting tubes and infrared receiving tubes that are opposite to each other at the top and bottom of the screen. Compared with the infrared emitting tubes and infrared receiving tubes arranged on four sides, there is a problem of poor accuracy
Method used
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[0065] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific diagrams.
[0066] refer to figure 1 , figure 2 , image 3 , a three-sided infrared touch screen, including an infrared touch system, the infrared touch system includes a microprocessor system and an infrared emitting array 1 and an infrared receiving array 2 respectively arranged on the left and right sides of the touch area, the infrared emitting array 1 and the infrared receiving array The array 2 is relatively arranged, and the infrared receiving array 2 receives the infrared light emitted by the infrared emitting array 1. The infrared touch system also includes an infrared sensing array 3 arranged above the touch area; the infrared sensing array 3 includes at least three infrared light emitting elements arranged laterally 4. At least three infrared recei...
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The invention relates to a touch system, in particular to a three-edge infrared touch screen. The three-edge infrared touch screen comprises an infrared touch system, wherein the infrared touch systemcomprises a microprocessor system and an infrared emitting array and an infrared receiving array which are oppositely and respectively arranged at left and right sides of a touch area; the infrared receiving array is used for receiving infrared light emitted by the infrared emitting array; the infrared touch system also comprises an infrared sensing array arranged above the touch area; the infrared sensing array comprises at least three horizontally-arranged infrared light emitting elements and at least three horizontally-arranged infrared receiving elements; the infrared light emitting elements are adjacent to the infrared receiving elements; the light emitting directions of the infrared light emitting elements are downward and the sensing directions of the infrared receiving elements are downward; and the microprocessor system is used for analyzing data monitored by the infrared receiving array and the infrared receiving elements in the infrared sensing array to obtain coordinates of touch points.
Description
technical field [0001] The invention relates to a touch system, in particular to an infrared touch system. Background technique [0002] The traditional infrared touch screen uses the dense infrared matrix in the X and Y directions to detect and locate the user's touch. Infrared touch screens generally install a protective glass in front of the display, and infrared emitting devices and infrared receiving devices are arranged on the four sides of the protective glass, corresponding to each other to form an infrared matrix that crosses horizontally and vertically. When the user touches the screen, the finger will block the horizontal and vertical infrared rays passing through the position, and then the position of the touch point on the screen can be judged. [0003] The existing infrared touch screen has infrared emitting tubes and infrared receiving tubes arranged on the four sides of the screen, which has defects such as complex structure, inconvenient installation, and h...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G06F3/041G06F3/042G06F3/0354
CPCG06F3/03547G06F3/0418G06F3/0428
Inventor 程抒一周爱国周全
Owner 上海优熠电子科技有限公司