A backlight source, a display device and a control method thereof

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

Active Publication Date: 2020-03-03
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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  • A backlight source, a display device and a control method thereof
  • A backlight source, a display device and a control method thereof
  • A backlight source, a display device and a 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 and 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 opaqu...

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PUM

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Abstract

Embodiments of the present invention provide a backlight source, a display device and a control method thereof, which relate to the field of display technology, and can achieve a privacy-proof display without carrying an anti-peep film, and have a wide range of applications. The backlight source includes a light guide plate and a light source arranged outside at least one side of the light guide plate; it also includes a plurality of light-limiting strips arranged in an array, and the light-limiting strips are arranged on the surface of the light-emitting surface of the light guide plate; The light-limiting strip includes two opposite electrodes, and a light-adjusting layer located between the electrodes; wherein, the light-adjusting layer is opaque or light-transmitting according to whether an electric field is formed between the electrodes. state. A switchable display device for anti-peeping and normal display.

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 Patents(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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