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Backlight source, backlight module and display device

A technology of backlight and light output side, which is applied in the field of backlight, backlight module and display device, which can solve the problems of obvious seams between lamp shadows and lamp intervals, which affect the display effect, etc., achieve uniform light mixing, prevent adverse effects, and improve display effect of effect

Pending Publication Date: 2022-01-28
HEFEI BOE OPTOELECTRONICS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the working process of the backlight source in the related art, there is a common problem that the light shadow and the seams between the light areas are obvious, which seriously affects the display effect.

Method used

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  • Backlight source, backlight module and display device
  • Backlight source, backlight module and display device
  • Backlight source, backlight module and display device

Examples

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application shall have the usual meanings understood by those skilled in the art to which the present application belongs. "First", "second" and similar words used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not ...

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Abstract

The invention provides a backlight source, a backlight module and a display device. The backlight source comprises a substrate, wherein a plurality of light-emitting unit groups are arranged on the substrate, each light-emitting unit group comprises at least one light-emitting unit, a first diffusion film corresponding to an area within the light-emitting angle of the light-emitting unit is arranged on the light-emitting side of the light-emitting unit, the reflectivity of the first diffusion film is greater than the transmissivity, for at least part of the light-emitting units, the substrate is further provided with a first reflection structure surrounding the light-emitting units, and the first reflection structure is used for reflecting light reflected by the first diffusion film in the direction of the area except the light-emitting angles of the light-emitting units. According to the scheme, the brightness difference between the light-emitting unit and the peripheral area can be effectively eliminated, the bad effect of lamp shadow is prevented, and the display effect is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a backlight source, a backlight module and a display device. Background technique [0002] Backlight sources for liquid crystal displays are classified into side-type and direct-type, among which, in the direct-type backlight, LEDs directly form a surface light source in an array. The current direct-lit backlight mainly adopts Mini LED. Based on its characteristics of miniaturization, high brightness, high color gamut, and partition control, it has the advantage of realizing high-dynamic range display (High-Dynamic Range, HDR). Display devices have a wide range of applications. [0003] In the related art, the backlight can be divided into multiple lamp areas, and each lamp area can be controlled independently. However, in the working process of the backlight source in the related art, there is generally a problem that the light shadow and the seams between the light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133606G02F1/133605G02F1/133603G02F1/133611
Inventor 赵雪梅李虎谢登玲雷阳阳张勇汪张宝
Owner HEFEI BOE OPTOELECTRONICS TECH
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