Touch unit, touch module, embedded touch screen and display device
A technology of touch unit and touch module, which is applied in the direction of instruments, computing, and electrical digital data processing, etc., and can solve problems such as inability to convert light into electrical signal transmission, inability to accurately detect touch and judge touch position, etc.
Active Publication Date: 2020-01-10
BOE TECH GRP CO LTD +1
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Problems solved by technology
[0003] The main purpose of the present invention is to provide a touch unit, a touch module, an embedded touch screen and a display device, which solve the problem of inability to accurately and quickly convert light into electrical signals and transmit them to touch reading lines in the prior art. , resulting in the inability to accurately detect the touch and judge the touch position
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[0048] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0049] Such as figure 1 As shown, the touch unit described in the embodiment of the present invention is respectively connected to the touch scanning line SL and the touch reading line TRL;
[0050] The touch control unit includes an electric bridge, and the first bridge arm, the second bridge arm, and the third bridge arm of the electric bridge are respectively provided with a first fixed resistance unit 11, a second fixed resistance unit 12, and a third fixe...
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The invention provides a kind of touch unit, touch module, embedded touch screen and display device. Touch unit electric bridge, the first bridge arm, the second bridge arm and the third bridge arm of the electric bridge are respectively arranged with the first fixed resistance unit, the second fixed resistance unit and the third fixed resistance unit. Another bridge arm of the electric arm is provided with light sensation control module.Light sensation control module includes controlling switch. The control end is connected with a touch-control scan line and the first end is connected with a high level output end. As well as photo conductive resistance unit, the first end is connected with the second end of the controlling switch and the second end is respectively with the second end of the third fixed resistance and touch-control read line. The invention solves the problem which illumination can not be quickly and accurately converted to electric signal, and transmitted to touch-control read line in the available technology, so as to causing to unfaithfully detect touch-control and judging the touch position.
Description
technical field [0001] The present invention relates to the field of touch technology, in particular to a touch unit, a touch module, an embedded touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screens have gradually spread in people's lives. Currently, touch screens are classified according to principles: resistive sensing touch screens, capacitive sensing touch screens, optical sensing touch screens, and the like. Among them, as the next-generation touch sensing technology, the optical sensor touch screen is not limited in the size of the screen, and the products produced have a long service life and are relatively stable, and can solve the problems of signal interference and signal delay. However, the existing optical sensing touch screens cannot accurately and quickly convert light into electrical signals and transmit them to the touch reading lines, resulting in the inability to accurately detect ...
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IPC IPC(8): G06F3/042
CPCG06F3/042
Inventor 张衎董殿正张斌张强王光兴陈鹏名解宇
Owner BOE TECH GRP CO LTD