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Light collimation device, backlight module and display device

A light and collimation technology, applied in the direction of light guide, optics, optical components, etc., can solve the problems of large divergence angle of surface light source and ineffective use of light

Active Publication Date: 2019-06-25
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the divergence angle of the surface light source is relatively large, which prevents a part of the light from being effectively used

Method used

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  • Light collimation device, backlight module and display device
  • Light collimation device, backlight module and display device
  • Light collimation device, backlight module and display device

Examples

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Embodiment Construction

[0029] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is illustrative only, and in no way restricts the disclosure, its application or uses. The present disclosure can be implemented in many different forms and is not limited to the embodiments described here. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that relative arrangements of parts and steps, compositions of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as illustrative only and not as limiting, unless specifically stated otherwise.

[0030] "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distin...

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Abstract

The disclosure provides a light collimation device, a backlight module and a display device, and relates to the field of display technology. The light collimating device includes: a curved reflective part configured to reflect light from a light source disposed at a focal point of the curved reflective part into the light guide part; a light guide part configured to make the light incident on the guide light The light in the component is propagated through total reflection; and the light-taking structure is arranged on the light-guiding component and is configured to take out the light from the light-guiding component in a collimated manner.

Description

technical field [0001] The present disclosure relates to the field of display technology, in particular to a light collimation device, a backlight module and a display device. Background technique [0002] In the field of display technology, surface light sources have a wide range of applications. For example, a surface light source can be used as a backlight source. [0003] At present, the divergence angle of the surface light source is relatively large, which prevents a part of the light from being effectively utilized. Contents of the invention [0004] The inventor noticed that in a known light collimating device, the light source is located at the focal point of the curved reflector, and the light emitted by the light source can be emitted substantially in parallel after being reflected by the curved reflector. However, since the light source has a certain size, the light reflected by the curved reflector has a divergence angle. Also, the larger the size of the li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00G02F1/13357
CPCG02F1/133605G02B6/0031G02B6/005G02B6/0053G02B6/0028G02B6/0038G02B6/0026G02F1/133602
Inventor 谭纪风
Owner BOE TECH GRP CO LTD