Light detection structure, light detection method, touch screen and display device

A light detection, touch screen technology, applied in measurement devices, photometry, optical radiation measurement, etc., can solve the problems of area reduction and affecting the display effect of liquid crystal panels, etc.

Active Publication Date: 2017-11-24
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, embedding touch sensors in LCD pixels will reduce the area available for display on the LCD panel; on the other hand, the presence of ambient light will also affect the display effect of the LCD panel.

Method used

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  • Light detection structure, light detection method, touch screen and display device
  • Light detection structure, light detection method, touch screen and display device
  • Light detection structure, light detection method, touch screen and display device

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Embodiment Construction

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0034] see figure 1 and figure 2 , the present invention provides a light detection structure 100 . The light detection structure 100 includes a detection circuit 30 and a plurality of touch sensors 10 . It should be noted that the "several" referred to here can be expressed as two or more than two. Any two adjacent touch sensors 10 are electrically connected through a photosensitive thin film transistor, wherein one touch sensor 10 is electrically connected to the drain of the photosensitive thin film transistor, and the other touch ...

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Abstract

The invention provides a light detection structure, comprising a detection circuit and a plurality of contact sensors arranged in sequence, wherein a photosensitive film transistor is arranged between any two adjacent contact sensors, and the photosensitive film transistor is electrically connected with the two adjacent contact sensors; the detection circuit comprises a plurality of integrators independent from each other, and the number of the integrators is equal to that of the contact sensors; the source and drain of the photosensitive film transistor are respectively electrically connected with the in-phase ends of the two integrators in the detection circuit, and the reference voltages selected for the in-phase ends of the two integrators are different. The light detection structure is used for detecting ambient light. Correspondingly, the invention further provides a light detection method for detecting ambient light. Moreover, the invention further provides a touch screen and a corresponding display device. After the ambient light is detected, the light detection structure is adjusted to reduce the adverse effect of the ambient light on the display effect.

Description

technical field [0001] The invention relates to the technical field of light detection and display, in particular to a light detection structure and method, and also to a touch screen and a display device. Background technique [0002] The touch screen is an inductive liquid crystal display device that can receive input signals such as contacts. It has the characteristics of transparency, touch detection and positioning. The touch screen gives multimedia a new look and is an attractive new multimedia interactive device. [0003] On this basis, if the original external touch screen components can be integrated with the liquid crystal panel, it is possible to achieve light weight and thinner panels. Therefore, the embedded touch screen emerges at the historic moment. An in-cell touch screen is realized by embedding a touch panel function into a liquid crystal pixel, specifically, this function is realized by embedding a touch sensor in a liquid crystal pixel. On the one han...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42G01J1/44G02F1/1333
CPCG01J1/4204G01J1/44G01J2001/4473G02F1/13338
Inventor 丁小梁王海生刘英明郑智仁王鹏鹏刘伟
Owner BOE TECH GRP CO LTD
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