Infrared touch screen lamp tube receiving and transmitting method and infrared touch screen

Abstract

The embodiment of the invention discloses an infrared touch screen lamp tube receiving and transmitting method which is used for eliminating an inclined blind eliminating area of an infrared touch screen and improving the detection effect of the infrared touch screen. The infrared touch screen lamp tube receiving and transmitting method comprises the steps that at the two ends of a transmitting lamp tube and receiving lamp tube queue, a transmitting lamp tube transmits light rays, and multiple corresponding receiving lamp tubes receive the light rays and feed back the light rays to a processor; or one receiving lamp tube receives the light rays transmitted by multiple corresponding transmitting lamp tubes, and feeds back the light rays to the processor for processing. The embodiment of the invention further provides the infrared touch screen. According to the infrared touch screen lamp tube receiving and transmitting method and the infrared touch screen, the inclined blind eliminating area of the infrared touch screen can be eliminated, and the detection effect of the infrared touch screen can be improved.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to an infrared touch screen lamp tube sending and receiving method and an infrared touch screen. Background technique [0002] Infrared touch screen (Infrared Touch Screen Technology) is composed of infrared emitting and receiving sensing elements installed on the outer frame of the touch screen. On the surface of the screen, an infrared detection network is formed. Any touching object can change the infrared rays on the contacts to realize touch screen operation. [0003] At present, in order to achieve multi-touch, most infrared touch screens use oblique scanning for touch detection, such as Figure 9 as shown, Figure 9 It is the schematic diagram of oblique scanning of traditional infrared touch screen. Figure 9 Among them, the upper and lower rows are the transmitting lamp tube and the receiving lamp tube respectively, and the two rows of lamp tubes emit and receive light at a cert...

AI Technical Summary

Problems solved by technology

from Figure 9 It can be seen from the figure that due to the characteristics of oblique scanning, there are two areas A and B that cannot be scanned obliquely, that is, there are oblique scanning blind areas. When the touch object is touched in the oblique scanning blind area, it will not be recognized by the infrared touch screen. arrive

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