Backlight source, display device and control method thereof

A display device and backlight technology, which is applied in light guides, optics, optical components, etc., can solve problems such as inconvenient use and narrowed viewing angles

Active Publication Date: 2016-08-31
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this anti-peeping method can only narrow the viewing angle. If you want to expand the viewing angle, you can only remove the anti-peeping film, which is very inconvenient to use.

Method used

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  • Backlight source, display device and control method thereof
  • Backlight source, display device and control method thereof
  • Backlight source, display device and control method 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] The embodiment of the present invention provides a backlight source 10, such as figure 1 with figure 2 As shown, it includes a light guide plate 11 and a light source 12 arranged outside at least one side of the light guide plate 11;

[0038] Wherein, the light-limiting strip 13 includes two electrodes 131 disposed opposite to each other, and a light-adjusting layer 132 located between the electrodes 131; wherein, the light-adjusting layer 132 is opaq...

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PUM

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Abstract

The embodiment of the invention provides a backlight source, a display device and a control method thereof, and relates to the field of display technology. While peep-proof display is achieved, a user does not need to carry about a peep-proof film, and the application range is wide. The backlight source comprises a light guide plate and a light source arranged at the outer side of at least one side face of the light guide plate. The backlight source further comprises multiple light limiting strips arranged in an array mode, the light limiting strips are arranged on the surface of a light outlet face of the light guide plate, each light limiting strip comprises two electrodes arranged oppositely and a dimming layer located between the electrodes, and the dimming layers are in a opaque and nonopaque state according to the situation whether an electric field is formed between the electrodes. The backlight source is used for the display device with the peep-proof function and the normal display function switchable.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight source, a display device and a control method thereof. Background technique [0002] With the development of society and the enrichment of material conditions, the combination of electronic equipment and people's life and work has become more and more close. Nowadays, there are more and more types of electronic devices, such as desktop computers, laptop computers, mobile phones, e-book readers, etc. However, while electronic devices provide people with many conveniences, they may also cause the leakage of personal information. [0003] For example, users often use the above-mentioned electronic devices in some public places, such as Internet cafes, subways, buses, etc., and the display screens of ordinary electronic devices have a relatively large viewing angle, which is very important for the confidentiality of personal information security. Adverse. [0004] The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334G02F1/1347G02F1/13G09G3/34G02B26/00
CPCG02B26/005G02F1/1323G02F1/1334G02F1/1347G02F1/13476G09G3/3406G02B6/0041G02B6/0048G02B6/0055G09G3/348
Inventor 李鑫
Owner BOE TECH GRP CO LTD
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