Light intensity detection unit and light intensity detector, as well as detection method and display device thereof

A light intensity detector and light intensity detection technology are applied in the direction of multi-detector devices, measuring devices, photometry, etc., which can solve the problems of reduced detection accuracy and poor amplitude anti-noise ability, and achieve anti-noise ability Strong, high data accuracy effect

Active Publication Date: 2016-12-14
BOE TECH GRP CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a light intensity detection unit, a light intensity detector and its detection method, and a display device, which solve problems caused by poor amplitude anti-noise ability in the process of collecting the amplitude of the photocurrent signal generated by the photosensitive device. The problem of reduced detection accuracy

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  • Light intensity detection unit and light intensity detector, as well as detection method and display device thereof
  • Light intensity detection unit and light intensity detector, as well as detection method and display device thereof
  • Light intensity detection unit and light intensity detector, as well as detection method and display device thereof

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Embodiment Construction

[0036] 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.

[0037] An embodiment of the present invention provides a light intensity detection unit U, such as Figure 1a As shown, it includes a first inverter 101 , a second inverter 102 , a third inverter 103 , a photosensitive device 104 (such as a CMOS device) and an energy storage module 105 .

[0038] Wherein, the first inverter 101 is connected to the signal input terminal VIN, the first voltage terminal VDD, the second voltage terminal VSS and the energy storage m...

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Abstract

The embodiment of the invention provides a light intensity detection unit and a light intensity detector, as well as a detection method and display device thereof, relates to the technical field of display, and aims to solve the problem of reduced detection accuracy due to poor amplitude noise resistance in the process of collecting the amplitude of a photoelectric current signal generated by a photosensitive device. The light intensity detection unit comprises a first reverser, a second reverser, a third reverser, a photosensitive device and an energy storage module, wherein the first reverser is used for respectively outputting voltage of a first voltage terminal and voltage of a second voltage terminal to the energy storage module under control of the signal input end of the light intensity detection unit; the second reverser and the third reverser are used for controlling the photo-current generated by the photosensitive device to output along the first direction and the second direction; and the energy storage module is used for controlling the voltage of the signal output end of the light intensity detection unit by voltage storage or voltage release.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light intensity detection unit, a light intensity detector and a detection method thereof, and a display device. Background technique [0002] Currently, display devices such as mobile phones and handheld computers have become one of the necessities of people's daily life. The user experience of the display device has also attracted more and more attention. For example, as the frequency of use of mobile phones increases, the power consumption of mobile phones also continues to rise. Most of the power consumption of mobile phones comes from the display screen. [0003] Therefore, in order to solve the problem of large power consumption, in the prior art, the brightness of the display screen can be automatically adjusted according to the intensity of external ambient light. For example, when the ambient light is strong, the brightness of the display screen can be increased, an...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01J1/42G01J1/46
CPCG01J1/4204G01J1/4228G01J1/46G01J2001/446G09G3/20G09G2360/144G01J1/44G01J2001/4426G09G5/10
Inventor 丁小梁董学吕敬王海生吴俊纬刘英明刘伟王鹏鹏韩艳玲曹学友
Owner BOE TECH GRP CO LTD
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