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Touch control system

A technology of touch control system and touch object, which is applied in the direction of instruments, electrical digital data processing, input/output process of data processing, etc., to achieve the effect of simple structure

Inactive Publication Date: 2011-01-26
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, surface acoustic waves will be absorbed by water, dust, oil, and even beverage liquids, so frequent cleaning and maintenance are required

Method used

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Experimental program
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Embodiment Construction

[0011] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] Please also refer to figure 1 and figure 2 As shown, the touch system 100 provided by the embodiment of the present invention includes a display panel 110, a first infrared sensor 121, a second infrared sensor 122, a third infrared sensor 123, a first infrared light source 131, a second An infrared light source 132 and a signal processor 140 .

[0013] The display panel 110 is rectangular, and the first and second infrared light sources 131 , 132 and the first, second and third infrared sensors 121 , 122 , 123 are located on the same side of the display panel 110 facing the user. The three infrared sensors 121 , 122 , 123 are respectively disposed along three sides of the display panel 110 . The light emitted by the infrared light sources 131 , 132 covers the entire display panel 110 and irradiates on the infrared sensors 121 , 1...

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PUM

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Abstract

The invention relates to a touch control system which comprises a display panel, N-1 infrared sensors, two infrared light sources and a signal processor, wherein the display panel is used for the touch control by a touch control object and displaying contents and provided with N edges; the N-1 infrared sensors are respectively arranged along the N-1 edges of the display panel; the two infrared light sources are respectively arranged at two end points at the edge of the panel without arranging the infrared sensors; infrared rays emitted out by the two infrared light sources all cover the display panel; the infrared rays emitted out by the two infrared light sources are blocked by the touch control object, and then, the infrared rays respectively form a dark spot on one of the N-1 infrared sensors; the signal processor is used for receiving the dark spot signals of the N-1 infrared sensors and judging the touch control position of the touch control object on the display panel according to the positions of the dark spot signals on the N-1 infrared sensors.

Description

technical field [0001] The invention relates to a touch control system, in particular to an optical touch control system. Background technique [0002] Many electronic products use a touch panel as an input method. The touch panels currently on the market mainly include resistive touch panels, capacitive touch panels and surface acoustic wave touch panels. [0003] The main part of the resistive touch panel is a resistive film screen that is very compatible with the display surface. This is a multi-layer composite film. Transparent conductive resistance) conductive layer, covered with a layer of outer surface hardened, smooth and anti-scratch plastic layer, its inner surface is also coated with a layer of coating, and there are many small (less than 1 / 1000 inch) between them ) The transparent isolation point separates and insulates the two conductive layers. When a finger touches the screen, the two conductive layers are in contact at the touch point, the resistance change...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/042
CPCG06F3/0428
Inventor 李俊佑
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD