Backlight module and display device

A backlight module and light source technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems affecting the display effect of the uniform white screen of the backlight module, and achieve the improvement of the display effect of the uniform white screen on the whole surface, the uniform light, and the increase of the brightness. The effect of a large beam angle

Active Publication Date: 2021-09-17
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the actual display of the mini LED surface light source has the problem of bright and dark stars all over the sky, which affects the uniform white screen display effect on the entire surface of the backlight module.

Method used

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  • Backlight module and display device
  • Backlight module and display device
  • Backlight module and display device

Examples

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Embodiment Construction

[0036] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses.

[0038] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0039] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may...

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Abstract

The invention discloses a backlight module and a display device. The backlight module includes: a substrate layer; a light source layer located on the substrate, and the light source layer includes a plurality of mini LEDs distributed in an array; a light mixing layer, located on the side of the light source layer away from the substrate layer, and the light mixing layer includes a first light mixing layer Layer, the first light mixing layer includes a plurality of light mixing structures, each mini LED corresponds to a plurality of light mixing structures; wherein, the light mixing structure includes a first surface on the side close to the light source layer and a second surface on the side away from the light source layer , in the light mixing structure, the first surface protrudes in a direction away from the light source layer, and / or the second surface protrudes in a direction close to the light source layer. The invention can improve the uniformity of the brightness of the entire backlight, so as to improve the problem that the backlight module is full of stars.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a backlight module and a display device. Background technique [0002] Mini LED (mini Light Emitting Diode, mini light-emitting diode, ie mini LED) is a small-sized LED. In recent years, it has been actively developed by major manufacturers because it can realize the local backlight driving function and has the advantages of high contrast and high brightness. The mini LED can be used as a surface light source in the backlight module without the need for structures such as light guide plates and reflectors, which is conducive to reducing the thickness of the backlight module. [0003] When mini LEDs are used as surface light sources, there will be gaps between adjacent mini LEDs due to the limitation of manufacturing cost and process. When the mini LED emits light, the front side of the mini LED has a strong light intensity, showing a bright area, while the gap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133611
Inventor 林宗伟郑泽源张军周荣生郑剑平
Owner XIAMEN TIANMA MICRO ELECTRONICS
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