Infrared multipoint touch television computer all-in-one machine

Abstract

The invention discloses an infrared multipoint touch television computer all-in-one machine, which consists of a touch screen, a display, a computer module and a television module, wherein the touch screen is connected with the computer module through a universal serial bus (USB) interface and is used for communication through a USB data line; audio / video data are transmitted between the computer module and the television module through audio / video connecting lines; the touch screen is provided with an infrared emission array and a corresponding infrared receiving array; the infrared emission array consists of a plurality of infrared emission tubes; and each infrared emission tube consists of an emission tube core and a lead. The machine is characterized in that: a small-sized convex lens is arranged in front of a luminous surface of the emission tube core in each infrared emission tube; and the emission tube core is positioned at the focus point of the convex lens. The infrared emission tubes capable of converging infrared rays emitted by the infrared emission tubes are adopted, so that the emitted energy loss of the infrared rays is effectively reduced, and the size of the touch screen of the infrared multipoint touch television computer all-in-one machine can be increased.

Description

technical field [0001] The invention relates to a touch TV computer integrated machine, in particular to an infrared multi-point touch TV computer integrated machine. Background technique [0002] Since the development of touch technology, various touch screens have emerged one after another, and their performance has been continuously improved. Compared with other touch screens, infrared touch screens have unique advantages, such as no wear, no interference from current, voltage and static electricity, long service life, and stability. Infrared touch screens are becoming more and more mainstream products in the touch screen market. The invention combines the infrared multi-touch screen technology with the mature TV-computer all-in-one machine technology to design an infrared multi-touch TV-computer all-in-one machine. [0003] At present, the computer and TV all-in-one machine technology has become more and more mature, and the display screen has become larger and larger, ...

AI Technical Summary

Problems solved by technology

The existing infrared touch technology can still support the small-sized display screen of the TV computer all-in-one machine. Once the display screen is enlarged, many problems will appear, such as inaccurate calibration points, offset contacts, and detection blind spots, etc.

Infrared emission tube is the key component of infrared touch screen. The infrared emission tube used in the existing infrared touch screen is a general-purpose infrared light-emitting tube, which is mainly used for infrared remote control and data transmission. The diffusion angle of the light is relatively large. When the axis deviation between the transmitting tube and the receiving tube is large, data can also be transmitted normally, but it is this characteristic of the infrared light-emitting tube that limits its application on large-sized infrared touch screens

Since the sensing matrix of the infrared touch screen is composed of dozens of pairs of infrared emitting tubes and infrared receiving tubes, each infrared emitting tube corresponds to an infrared receiving tube, and it is best that the infrared emitting tubes correspond to the infrared receiving tubes one by one. , and the general-purpose infrared emission tube has a relatively wide scattering angle, which will lead to uneven distribution of sensitivity when applied to a large-size touch screen, and the diffusion loss of infrared rays is large, which cannot reach the infrared receiving end

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