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Photosensitive device, array substrate, display device and brightness adjusting method thereof

A technology of photosensitive devices and display devices, which is applied in the directions of instruments, optics, nonlinear optics, etc., can solve the problems of high cost and complicated process, and achieve the effect of reducing the cost of the whole machine

Pending Publication Date: 2020-02-11
NANJING CEC PANDA FPD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the light sensor inside the smart phone and smart wearable products must occupy a certain space in the frame. The basic principle is to use the light sensor to sense the change of light. The process is relatively complicated and the cost is high.

Method used

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  • Photosensitive device, array substrate, display device and brightness adjusting method thereof
  • Photosensitive device, array substrate, display device and brightness adjusting method thereof
  • Photosensitive device, array substrate, display device and brightness adjusting method thereof

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Embodiment Construction

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0025] In order to make the drawing concise, each drawing only schematically shows the parts related to the present invention, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked. Herein, "a" not only means "only one", but also means "more than one".

[0026] The existi...

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PUM

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Abstract

The invention discloses a photosensitive device. The photosensitive device comprises at least one photosensitive transistor, wherein the photosensitive transistor comprises a gate, a source, a drain and a channel photosensitive region which is in contact with the source and the drain; and a predetermined voltage is input into the gate of the photosensitive transistor, a detection voltage is inputinto the source of the photosensitive transistor, and the photosensitive transistor induces the brightness of external light rays by means of the channel photosensitive region to generate a corresponding drain current signal. The photosensitive device integrates a light sensor in a display device by utilizing the influence of light intensity on an off-state drain current of the photosensitive transistor, so that the light sensor is integrated on the periphery of the display device without occupying an effective display region, and the cost of the whole machine is reduced.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a photosensitive device, an array substrate, a display device and a brightness adjustment method thereof. Background technique [0002] With the development of display technology, TFT-LCD (Thin Film Transistor-Liquid Crystal Display, Thin Film Transistor-Liquid Crystal Display) occupies a dominant position in the display field with its absolute advantages (low cost, good picture quality, low power consumption, etc.), such as It can be applied to audio-visual equipment such as computers, TV sets, and smart phones. Among them, the structure of the liquid crystal display panel is usually composed of a color filter substrate (Color Filter, CF), an array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate referred to as TFT substrate), and a liquid crystal layer (Liquid Crystal Layer), its working principle is to control the rotation of liquid crystal molecules ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1368G02F1/1335G09G3/36
CPCG02F1/133512G02F1/133514G02F1/1368G09G3/36G09G2320/0626G02F1/136222
Inventor 贺强祝宏勋
Owner NANJING CEC PANDA FPD TECH CO LTD
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