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Light uniformizing lens and backlight module

A backlight module and lens technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of inability to achieve, poor uniform light effect, etc., and achieve the effect of uniform light output

Pending Publication Date: 2022-01-28
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a uniform light lens and a backlight module for the above-mentioned defects of the prior art, aiming at solving the problem that the lens in the prior art can only control the angular distribution or spatial distribution of the outgoing light , it is impossible to achieve both, which leads to the problem of poor dodging effect

Method used

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  • Light uniformizing lens and backlight module
  • Light uniformizing lens and backlight module
  • Light uniformizing lens and backlight module

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Embodiment Construction

[0026] In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] In the liquid crystal display, because the transmittance of the liquid crystal panel to the incident light at a large angle is not high, it is necessary to control the divergence angle of the backlight source in order to improve the energy utilization rate. To do this, lenses are needed to achieve a dodging effect. However, the existing lens has only one free-form surface, which can only control the angular distribution or spatial distribution of the outgoing light, and cannot achieve both, resulting in poor light uniformity.

[0028] In order to solve the above problems, this embodi...

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Abstract

The invention discloses a light uniformizing lens and a backlight module. The light uniformizing lens comprises a lens body, a light inlet surface and light outlet structures. The light inlet surface is arranged on the bottom surface of the lens body. The light outlet structures are arranged on the top face and the side face of the lens body. When light enters the lens body from the light inlet surface, the light deflects through the light outlet structures arranged on the top surface and the side surface of the lens body, so that the light is emitted in a dispersed manner, the angle distribution and the space distribution of the emergent light are controlled, and the emergent light is uniform.

Description

technical field [0001] The invention relates to the technical field of optical elements, in particular to a uniform light lens and a backlight module. Background technique [0002] In the field of liquid crystal TV display, LED lights have a very wide range of applications. LED, as a new generation of light source, has small size, long life, good color rendering, low power consumption, and high luminous efficiency. It has shown greater application prospects in the fields of large-area flat panel displays and portable displays. However, the outgoing light of the LED light source has a certain angular distribution and spatial distribution. Therefore, in all current practical applications, corresponding optical light distribution components, such as lenses, need to be provided. [0003] However, the current lens can only control the angular distribution or spatial distribution of the outgoing light, and cannot achieve both, resulting in poor light uniformity. [0004] Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133607G02F1/133611G02F1/133603
Inventor 张双双尤君平陈伟雄
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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