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Reflective lens for ultrathin backlight module group

A backlight module and reflective technology, which is applied in the field of reflective lenses for ultra-thin backlight modules, can solve problems such as the inability to achieve mixed light heights, and achieve the effects of reduced thickness, large light output angle, and uniform light output

Pending Publication Date: 2018-11-23
ANHUI COREACH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this structure, it is impossible to make the light mixing height lower and the backlight module thinner

Method used

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  • Reflective lens for ultrathin backlight module group
  • Reflective lens for ultrathin backlight module group
  • Reflective lens for ultrathin backlight module group

Examples

Experimental program
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Embodiment Construction

[0022] The purpose of the present invention can be achieved through the following technical solutions:

[0023] A reflective lens for an ultra-thin backlight module, see Figure 1-5 , including a carrier edge 1, a support column 2, a transmission cylinder 5, a central cylinder 6, a first astigmatism groove 8, and a second astigmatism groove 9;

[0024] The shape of the lens is a double-layer cylindrical structure; the lower surface of the lens is provided with a light source cavity 3, and the lower surface of the lens around the light source cavity 3 is provided with a support column 2; An astigmatism groove 8, a second astigmatism groove 9 is arranged below the first astigmatism groove 8; an astigmatism diffusion groove 7 is arranged on the upper surface of the lens outside the first astigmatism groove 8;

[0025] The first astigmatism groove 8, the second astigmatism groove 9, and the astigmatism diffusion groove 7 divide the upper surface of the lens into a central cylinde...

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Abstract

The invention discloses a reflective lens for an ultrathin backlight module group, and the reflective lens comprises a loading edge, a support column, a transmission cylinder, a central cylinder, a first light scattering groove, and a second light scattering groove. The lens is of a double-layer cylindrical surface structure. The lower surface of the lens is provided with a light source cavity, and the lower surface of the lens around the light source cavity is provided with the support column. A side edge of the lens is provided with the loading edge. The upper surface of the lens is providedwith the first light scattering groove, and the second light scattering groove is disposed below the first light scattering groove. The upper surface of the lens at an outer side of the first light scattering groove is provided with a light scattering and diffusion groove. The first light scattering groove, the second light scattering groove and the light scattering and diffusion groove enable the upper surface of the lens to be segmented into the central cylinder and the transmission cylinder. The central cylinder is located at the center of the transmission cylinder, and a central axis of the central cylinder is coaxial with the central axis of the transmission cylinder. The lens is large in light outgoing angle, is uniform in outgoing light, and reduces the thickness of the backlight module group.

Description

technical field [0001] The invention relates to a reflective lens for an ultra-thin backlight module, in particular to a reflective lens for an ultra-thin backlight module with large light emitting angle, uniform light emission and reduced thickness of the backlight module. Background technique [0002] In the technical field of LED backlight modules, the LED backlight market presents a rapid development trend. In the LED backlight module, the height from the backlight circuit board PCB to the diffuser plate is the light mixing height. Currently on the market, backlight modules with low light mixing height usually use reflective lenses. The reflective lens evenly diffuses the light of the LED light source to increase the irradiation range of the light source, thereby effectively improving the lighting efficiency. [0003] At this stage, backlight modules can be divided into two types: side-type and direct-type. Compared with side-type backlight modules, direct-type backlig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B3/00G02B3/08G02B5/08G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133611G02B3/00G02B3/08G02B5/0808G02F1/133607
Inventor 熊骏彭友吴疆年靠江
Owner ANHUI COREACH TECH
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