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Lens, light-emitting diode (LED) backlight module and display device

A technology of lens and light-emitting surface, which is applied in the field of optics, can solve the problems of insufficient uniformity and small light-emitting area of ​​LEDs, and achieve the effect of good uniformity and increased light-emitting area

Active Publication Date: 2013-05-08
SHENZHEN COOCAA NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiments of the present invention is to provide a lens, aiming to solve the problem that the light emitted by the LED has a small area and is not uniform enough after passing through the existing lens

Method used

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  • Lens, light-emitting diode (LED) backlight module and display device
  • Lens, light-emitting diode (LED) backlight module and display device
  • Lens, light-emitting diode (LED) backlight module and display device

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Embodiment Construction

[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] In the embodiment of the present invention, the light incident surface receives the light emitted by the light source. After the light emitted by the light source enters the lens, part of the light is directly refracted from a certain light exit surface, and the other part of the light is first reflected by a certain light exit surface to other light exit surfaces or The bottom surface is then reflected to another light-emitting surface by other light-emitting surfaces or the bottom surface, and finally refracted from another light-emitting surface. In this way, the light emitted by the light...

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Abstract

The invention provides a lens, a light-emitting diode backlight module and a display device, and is applied in the technical field of optics. The lens receives light rays radiated from a light source through a light-in surface, when the light rays radiated from the light source enter into the lens, a part of the light rays directly reflects out from a certain light-out surface, the other part of the light rays reflect to other light-out surfaces or bottom surfaces through a certain light-out surface, then reflect to other light-out surfaces through other light-out surfaces or bottom surfaces, and at last reflect out from the other light-out surface. Accordingly, the light rays radiated from the light source are scattered in the lens and are enabled to reflect out from different light-out surfaces, and thus light-out areas are enlarged and uniformity is good. Therefore, the lens is suitable for various LED backlight module and display devices.

Description

technical field [0001] The invention belongs to the field of optical technology, and in particular relates to a lens, an LED backlight module and a display device. Background technique [0002] Light-emitting diodes (LEDs) have a unidirectional light emission and a narrow range of light intensity distribution, so lenses are required for light distribution. However, the area of ​​the light emitted by the LED after passing through the existing lens is small and not uniform enough to meet application requirements. For this reason, it is necessary to use a large number of light-emitting diodes (LEDs) to be arranged collectively to achieve the same and uniform light intensity distribution at different positions on the same plane, which will lead to high cost and bulky backlight modules. group system. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a lens, aiming to solve the problem that the light emitted by the LED has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21S8/00F21Y101/02
Inventor 沈思宽阮世陈
Owner SHENZHEN COOCAA NETWORK TECH CO LTD
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