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Backlight module and display device

A backlight module and backplane technology, which is applied in the directions of identification devices, optics, nonlinear optics, etc., can solve the problem of uneven brightness of the light-emitting surface, and achieve the effect of improving uneven lighting, improving the surrounding blue or darkening

Active Publication Date: 2019-04-02
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The LEDs of the direct-type backlight are arranged in a matrix and arranged directly under the display panel to directly form a surface light source, but the array arrangement of the LEDs in the direct-type backlight will cause uneven brightness on the light-emitting surface of the backlight module

Method used

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  • Backlight module and display device

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Embodiment Construction

[0024] 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 part of the embodiments of the present invention, not all of them. 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.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, and thus the present invention is not limited by the specific embodiments disclosed below.

[0026] In the field of display technology, direct-type backlights have been more and more widely used. In the course of research, the inventors found that since direct-type backlights use LEDs as light sources, a plurality o...

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Abstract

The invention discloses a backlight module and a display device. The backlight module comprises a backboard. The backboard comprises a base and a side frame connected with the base. The base and the side frame form an accommodating space. A plurality of LEDs and a reflective layer are provided in the accommodating space. Multiple LEDs are located on one side of the base facing the light emitting surface of the backlight module. Multiple LEDs are arranged in a matrix. The reflective layer is located on one side of the base facing the light emitting surface of the backlight module. The reflective surface of the reflective layer faces the light emitting surface of the backlight module. The backlight module comprises a light-emitting area and a non-light-emitting area. The non-light-emitting area surrounds the light-emitting area. The light-emitting area comprises a first area and a second area. The first area surrounds the second area. The first area comprises a plurality of LEDs. The second area comprises a plurality of LEDs. The reflectivity of the reflective layer located in the first area is greater than the reflectivity of the reflective layer located in the second area. The display device comprises the above backlight module. The backlight module and the display device provided by the invention can effectively improve the brightness unevenness of the backlight module.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a backlight module and a display device. Background technique [0002] Backlight modules have important applications in the field of display technology. Light Emitting Diodes (LEDs) are also very useful as light sources for backlight modules because of their advantages such as high luminous efficiency, low power consumption, wide color gamut, and long service life. Wide range of applications. [0003] At present, the backlight modules on the market can be roughly divided into two types: direct-type backlight and side-type backlight. The side-type backlight is to install the LED on the side of the light guide plate, convert the line light source into a surface light source through the light guide plate, and homogenize the light of the surface light source through a series of optical films. The LEDs of the direct-type backlight are arranged in a matrix and arranged directly unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G09F9/00
CPCG02F1/133603G02F1/133605
Inventor 刘远明
Owner XIAMEN TIANMA MICRO ELECTRONICS
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