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Dimming diaphragm, backlight module and display equipment

A technology of backlight module and dimming film, which is applied in optics, nonlinear optics, identification devices, etc., and can solve problems such as light mixing and chromatic aberration

Pending Publication Date: 2021-02-02
RADIANT OPTO ELECTRONICS NANJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the object of the present invention is to provide a dimming film, a backlight module and a display device, hoping to improve the problem of chromatic aberration caused by uneven light mixing at the periphery of the current backlight module.

Method used

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  • Dimming diaphragm, backlight module and display equipment
  • Dimming diaphragm, backlight module and display equipment
  • Dimming diaphragm, backlight module and display equipment

Examples

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Embodiment Construction

[0040] refer to Figure 1 to Figure 10 , are several preferred embodiments of the dimming film 10 of the present invention, which is arranged between the color conversion layer 23 and the display panel 31 of the direct type backlight module 20, and the dimming film 10 includes a substrate 11 and at least one There are light-adjusting layers 12 a - 12 e with colorants. The substrate 11 defines a central area 13 and a peripheral area 14 , and the central area 13 is surrounded by the peripheral area 14 . For example, the light-adjusting layers 12a-12d with coloring material can be coated on the substrate 11 with a gel containing coloring material (such as UV glue), and then the light-adjusting layers 12a-12d are shaped with a suitable mold. Outside on this substrate 11; Can also be as Figure 8 As shown, the method of color printing is selected, and the light-adjusting layer 12e is printed on the substrate 11 in a color gradient method.

[0041] Wherein, the substrate 11 has tw...

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Abstract

The invention provides a dimming diaphragm, a backlight module and display equipment, the dimming diaphragm is arranged on the front side of a color conversion layer of the backlight module and located on the rear side of a display panel of the display equipment, the dimming diaphragm comprises a substrate and at least one dimming layer with pigment, the dimming layer is arranged on the substrate,and a central area and a peripheral area are defined on the dimming layer. The pigment content of the dimming layer decreases progressively from the peripheral area to the central area. According tothe dimming diaphragm, the dimming layer containing the pigment is mainly arranged on the substrate, and the structural change of the dimming layer is utilized so that the pigment content of the dimming layer is decreased progressively from the peripheral area to the central area, when light emitted by the light source can pass through the dimming layer of the dimming diaphragm, the dimming effectcan be achieved by utilizing the pigment in the dimming layer, the light mixing uniformity at the periphery of the backlight module can be further improved, and the overall optical taste of the backlight module is improved.

Description

technical field [0001] The invention relates to a dimming component, in particular to a dimming film applied to a direct-type backlight module and a display device and an application thereof. Background technique [0002] In existing display devices, a backlight module is mainly used to provide a backlight source for a display panel. Current backlight modules of display devices can be classified into direct type and side type according to their light incident modes. Among them, the direct-type backlight module provides the backlight required by the display panel by providing a light source in the casing and combining optical films such as prism sheets and diffusion sheets. [0003] The following methods can be used to select the light source of the direct-lit backlight module. Red, green and blue monochromatic light-emitting diodes (RGB LED) are used as light sources, and by allowing the light to diffuse, reflect or refract when passing through the optical film, to complet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13357G09F9/30
CPCG02F1/1335G02F1/133609G09F9/30
Inventor 钟元振陈蔚轩陈瑞麟李品勋黄瑞琳苏益楠
Owner RADIANT OPTO ELECTRONICS NANJING
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