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Direct back light and display device

A backlight and direct-type technology, which is applied in the field of direct-type backlight and display devices, can solve the problem that direct-type backlight cannot be applied to display products with narrow viewing angle requirements, and achieve the effect of reducing the divergence angle

Active Publication Date: 2018-12-07
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a direct-type backlight and a display device, which can solve the problem that the related art direct-type backlight cannot be applied to the field of display products with narrow viewing angle requirements

Method used

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  • Direct back light and display device

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Experimental program
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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] figure 1 It is a schematic structural diagram of a direct-lit backlight provided by an embodiment of the present invention, as shown in figure 1 As shown, the direct type backlight includes:

[0040] The light emitting module 10 and the lens film layer 20 located on the light emitting side of the light emitting module 10 .

[0041] The light-emitting module 10 includes a base substrate 101 and a plurality of light-emitting units 102 arranged in an array on the base substrate 101. The side of the lens film layer 20 away from the base substrate 101 is provided with a plurality of collimation structures M arranged in an array. The collimating structure M comprises at least one convexly curved structure m.

[0042] Wherein, a plu...

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PUM

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Abstract

The invention discloses a direct back light and a display device, and belongs to the technical field of display. The direct back light comprises a light emitting module and a lens membrane layer located on the light outlet side of the light emitting module; the light emitting module comprises a substrate and multiple light emitting unit which are arrayed on the substrate, and multiple arrayed collimation structures are arranged on the face, away from the substrate, of the lens membrane layer and each comprises one or more protruding curve surface structures. The collimation structures which are each composed of one or more protruding curve surface structures are provided in the direct back light and can converge light emitted from the lens membrane layer to decrease the divergence angle ofthe emitted light, accordingly, the divergence angle of emitted light of the direct back light is decreased, and the direct back light can be applied to display products with a narrow-view angle demand.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a direct-lit backlight source and a display device. Background technique [0002] A liquid crystal display (Liquid Crystal Display, LCD) includes a liquid crystal display panel and a backlight arranged on the back of the liquid crystal display panel. The backlight is divided into a direct type backlight and an edge type backlight. The direct-lit backlight includes a light source, and a diffusion sheet and a prism film layer stacked along a direction away from the light source. [0003] In the direct-lit backlight provided by the related art, an array of light-emitting diodes (Light-Emitting Diode, LED) is usually used as a light source. The light emitted by the LED array is transmitted to the liquid crystal display panel after being transmitted through the diffusion sheet and the prism film layer. [0004] However, due to the large divergence angle of the outgoing light of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133603G02F1/133606G02F1/133607G02B19/0014G02B19/0066G02B27/0955G02B27/0972G02B27/30
Inventor 高露张冰高亮揭景斌汤海
Owner HEFEI BOE OPTOELECTRONICS TECH