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Light mixing optical film, backlight module and display device

A backlight module and display device technology, applied in optics, optical components, nonlinear optics, etc., can solve the problems of increasing the thickness of the backlight module, increasing the film, etc., to solve the contradiction between the uniformity of the backlight and the light effect, and the production cost. The effect of reducing and increasing thickness

Inactive Publication Date: 2020-04-17
SHENZHEN DREAM & HOPE DISPLAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a light-mixing optical film, a backlight module and a display device. Chips, technical issues of increasing the thickness of the backlight module

Method used

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  • Light mixing optical film, backlight module and display device
  • Light mixing optical film, backlight module and display device
  • Light mixing optical film, backlight module and display device

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Embodiment Construction

[0036] 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.

[0037] It should be noted that when a component is referred to as being “fixed on” or “disposed on” another component, it may be directly or indirectly located on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, and is only for convenience of description, and should...

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Abstract

The invention relates to a light mixing optical film, a backlight module and a display device. The light mixing optical film comprises an optical base film layer and a light mixing structure layer, wherein the light mixing structure layer comprises at least two light mixing sub-structure layers, the at least two light mixing sub-structure layers are arranged on the surface and / or inside the optical base film layer, and projections of the at least two light mixing sub-structure layers on the lower surface of the optical base film are partially overlapped, so that the total thicknesses of the light mixing structure layers in different areas are different. When the illumination intensity of the Mini LED in each region is different, the illumination intensity of the Mini LED is adjusted; the total thickness of the light mixing structure layer in each region with different illumination intensities is set to be different; furthermore, the light transmissivity of each region with different illumination intensities is different; according to the mixed light optical film, the brightness of the mixed light optical film is basically similar after light passes through each area, so that brightspots and dark spots on a backlight module provided with the mixed light optical film are eliminated, the thickness of the backlight module is not increased, and the problem of contradiction betweenbacklight uniformity and lighting effect of a Mini backlight module is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light-mixing optical film, a backlight module and a display device. Background technique [0002] Mini LED, also known as submillimeter light-emitting diode, is a surface LED composed of a large number of LED chips with a single size of 100-300 microns. Mini LED technology is a kind of technology between traditional LED technology and micro LED (Micro LED) technology. transition technology between. [0003] Most of the existing Mini LED backlight modules adopt the bottom emission method, and in order to achieve a better light mixing effect, a light mixing structure is used to achieve uniform light mixing. The mixed light structure is usually achieved by printing, coating, spraying, spot coating or mold. The mold method cannot match the design of many differentiated Mini LED light sources due to cost issues. The mixed light structure produced by other methods is a parallel str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B5/08G02B5/02
CPCG02F1/133606G02F1/133605G02B5/0808G02B5/0284
Inventor 潘业琥曹庆刘瀚
Owner SHENZHEN DREAM & HOPE DISPLAY TECH CO LTD
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