Double-sided infrared touch screen
An infrared touch screen, bilateral technology, applied in the direction of instrument, electrical digital data processing, data processing input/output process, etc., can solve problems such as unfavorable stable work, inconvenient installation, complex structure, etc., to achieve simple structure, cost saving, Wide range of effects
Active Publication Date: 2016-12-14
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.
Especially in a wide screen, the optical signal between the infrared emitting tube and the infrared receiving tube that are far away from each other may have a large attenuation, which is not conducive to stable work.
Method used
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[0043] 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.
[0044] refer to figure 1, a double-sided infrared touch screen, including an infrared emitting array and an infrared receiving array arranged on the side of the touch area 1, and also includes an auxiliary circuit for controlling the opening of the infrared emitting tube 2 and the infrared receiving tube 3 in the infrared emitting array and the infrared receiving array. It includes a microprocessor system that controls the auxiliary circuit and stores, calculates, and transmits the detected data. One side of the touch area 1 is provided with a group of infrared emitting arrays, and the other side of the touch area 1 is provided with a group of infrared receiving arrays. The emitting array is arranged opposite to the infrared receiving array, and the ...
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The double-sided infrared touch screen relates to the field of touch screens. The double-sided infrared touch screen includes an infrared emitting array and an infrared receiving array, as well as an auxiliary circuit and a microprocessor system. A set of infrared emitting arrays is arranged on one side of the touch area. A group of infrared receiving arrays is arranged on the other side of the side, and the infrared emitting array is arranged opposite to the infrared receiving array, and the infrared receiving array receives the infrared light emitted by the infrared emitting array. The microprocessor system determines the position of the touch point in the touch area through an axis-shifting scanning algorithm. Due to the adoption of the above technical solution, the present invention has the advantages of simple structure, low cost and the like.
Description
technical field [0001] The invention relates to the field of touch screens, in particular to the field of infrared touch screens. Background technique [0002] As a branch of touch screen, infrared touch screen is gradually widely used in various fields due to its advantages of convenient installation, maintenance-free, high reliability and so on. Infrared touch screens usually use a dense infrared matrix in the X and Y directions to detect and locate the user's touch. Infrared emitting tubes and infrared receiving tubes are arranged on four sides of the screen of the infrared touch screen, corresponding to each other to form an infrared matrix that crosses horizontally and vertically. When the user touches the screen, the touch point of the touch element will block the two infrared rays passing through the position, so 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...
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IPC IPC(8): G06F3/042
Inventor 程抒一
Owner 上海优熠电子科技有限公司