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Light distribution type beam splitter, backlight module and method for improving light diffusion effect

A technology of backlight module and beam splitter, which is applied in the parts of lighting devices, identification devices, instruments, etc., can solve the problems of being difficult to meet the requirements of thinning and thinning, and the thickness of the backlight module is thick, so as to improve the divergence effect, uniform light, and extend the The effect of the illumination path

Pending Publication Date: 2022-07-29
FOUR SUN TECH (WUJIANG) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The distance between the lamp board and the beam splitter is the mixed light area. The larger the distance between the lamp board and the beam splitter, the longer the path of the light emitted by the lamp board in the mixed light area, and the lamp beads on the lamp board The larger the irradiation area on the beam splitter, the thicker the backlight module will be, making it difficult to meet the requirements of thinner and lighter

Method used

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  • Light distribution type beam splitter, backlight module and method for improving light diffusion effect
  • Light distribution type beam splitter, backlight module and method for improving light diffusion effect
  • Light distribution type beam splitter, backlight module and method for improving light diffusion effect

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 and figure 2 A light distribution type beam splitter plate comprises a plate body 1, a plurality of light reflection parts 2 are arranged on one side of the plate body 1, and the plurality of light reflection parts 2 are arranged at intervals. The light-reflecting portion 2 is formed by a plurality of bumps arranged at intervals, and the plurality of bumps are integrally formed on the surface of the plate body 1 . The reflective part 2 is formed with transparent reflective ink. After the light is irradiated on the beam splitter, the reflector 2 can reflect part of the light, and the other lights pass through the gap between the bumps and the gap between the reflectors 2, and form a surface light source under the atomization of the beam splitter. , and eliminates dark areas caused by bump reflections.

[0044] refer to figure 1 and image 3 , Embodiment 1 also discloses this kind of backlight module, including the above-mentioned light distributio...

Embodiment 2

[0056] refer to Figure 4 and Figure 5 The difference between Example 2 and Example 1 is that the reflective part 2 of the plate body 1 is formed by multiple depressions on the bottom surface of the plate body 1, and transparent reflective ink is sprayed in the depressions. By adopting the recessed structure, the light emitted by the lamp beads 32 is concentrated after the light is irradiated on the beam splitter, so that the light emitted by the lamp beads 32 has higher brightness and the backlight module emits higher brightness.

[0057] The reflective part 2 of the board body 1 can be formed by laser spotting, combined with reflective ink spraying.

Embodiment 3

[0059] refer to Image 6 The difference between Embodiment 3 and Embodiment 1 is that the light-reflecting portion 2 of the plate body 1 is formed by a plurality of light-reflecting points arranged at intervals. The reflective part 2 is formed by printing the transparent reflective ink on the surface of the plate body 1 . By printing the reflective ink on the surface of the board body 1 , the production and processing process is simpler, the setting efficiency of the reflective part 2 can be improved, and the production and processing efficiency of the board body 1 can be improved.

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Abstract

The invention relates to the field of optical elements, in particular to a light distribution type light splitting plate, a backlight module and a method for improving the light diffusion effect, the light distribution type light splitting plate comprises a plate body, and a plurality of light reflecting parts are arranged on one face of the plate body at intervals. The backlight module comprises a light distribution type light splitting plate, a mounting plate and a plurality of lamp beads, at least one face of the mounting plate can reflect light of the lamp beads, the lamp beads are arranged on the face, capable of reflecting light, of the mounting plate at intervals, the mounting plate is arranged on the side, provided with the light reflecting part, of the plate body, and the light reflecting part on the plate body reflects the light of the lamp beads to the mounting plate. The backlight module has the effects that the distance between the lamp panel and the light splitting plate is reduced, and the thickness of the backlight module is reduced.

Description

technical field [0001] The present application relates to the field of optical components, and in particular, to a light distribution type light splitter plate, a backlight module and a method for improving the light diffusion effect. Background technique [0002] With the gradual upgrade of office light weight, people put forward higher requirements for the light and thin performance of electronic products such as displays. The backlight module is an indispensable component in electronic products such as displays, and the thickness of the backlight module has a key relationship with the thickness of the final product. [0003] Backlight, the module includes a light board and a light splitter board, the light splitter board is arranged above the light board, the light emitted by the light board is directed to the light splitter board, and then further processed by the light splitter board. The distance between the light board and the beam splitter is the light mixing area. ...

Claims

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Application Information

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IPC IPC(8): F21V7/00G09F9/30
CPCF21V7/00F21V7/0083G09F9/30
Inventor 王钰鑫林炳腾
Owner FOUR SUN TECH (WUJIANG) CO LTD
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