WO2020034275A1 - 侧入式背光模组及显示装置 - Google Patents

侧入式背光模组及显示装置 Download PDF

Info

Publication number
WO2020034275A1
WO2020034275A1 PCT/CN2018/104258 CN2018104258W WO2020034275A1 WO 2020034275 A1 WO2020034275 A1 WO 2020034275A1 CN 2018104258 W CN2018104258 W CN 2018104258W WO 2020034275 A1 WO2020034275 A1 WO 2020034275A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light source
back plate
strips
backlight module
Prior art date
Application number
PCT/CN2018/104258
Other languages
English (en)
French (fr)
Inventor
向昌明
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Publication of WO2020034275A1 publication Critical patent/WO2020034275A1/zh

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side

Definitions

  • the invention relates to a display technology, in particular to a side-entry backlight module and a display device.
  • LED light focusing modules are divided into direct-type LED light focusing modules and side-type LED light focusing modules according to the position of the light source.
  • the light-concentrating module adopts an optical element such as a light guide plate, so it can be made very thin, which is conducive to the thin development of LCD displays.
  • the introduction of light guide plates has the following problems: First, the light efficiency is greatly reduced. A large amount of heat is generated during the lighting process, so the temperature in the narrow cavity of the side-entry condenser module will be too high, which will cause the warpage of the light guide plate, which will cause the light efficiency to further decrease. The aging of the material of the light guide plate will cause extinction of a specific light emission wavelength, which will further affect the display color. And because of the complicated optical structure, the production cost increases.
  • the present application discloses an edge-lit LED backlight module without a light guide plate to solve the above technical problems.
  • An embodiment of the present invention provides an edge-lit backlight module and a display device without a light guide plate; in order to solve the existing edge-lit backlight module and the display device, the light effect is poor due to the light guide plate, which further affects the display color. technical problem.
  • An embodiment of the present invention provides an edge-lit backlight module, which includes:
  • the reflective backplane includes a diffuse reflection surface, which is used to diffusely reflect part of the light emitted by the light source assembly and radiate to the double-sided prism diffuser;
  • the double-sided prism diffuser is configured to scatter the light reflected by the reflective back plate and a part of the light emitted by the light source component and emit light, and is arranged at the front end of the diffuse reflection surface of the reflective back plate;
  • the light source component is configured to provide a light source for the backlight module, and emit light to the reflective back plate and the double-sided prism diffusion plate, and is disposed on the reflective back plate and the double-sided prism diffusion plate. Between, and located on one side of the front end of the diffuse reflection surface of the reflective back plate, or the light source components are located on both sides of the front end of the diffuse reflection surface of the reflective back plate;
  • a brightness enhancement film disposed on a light emitting side of the double-sided prism diffuser plate.
  • a frame is disposed on a peripheral side of the reflective back plate, and the light source component is disposed on a side of the frame facing the reflective back plate;
  • the light source assembly includes a light source and a light condensing unit arranged in a light emitting direction of the light source;
  • the light source is a light emitting component emitting light of three colors of red / green / blue
  • the light condensing unit includes a light mixing cover covering the light emitting component and a light shielding device provided on an outer peripheral side of the light mixing cover for reducing A light-condensing component with a divergent angle of light from the light-emitting component.
  • the light-emitting component is a combination of a red LED light, a green-light LED light, and a blue-light LED light
  • the light-condensing component is a combination of a condenser cup and a condenser lens
  • the red light LED light, the green light LED light and the blue light LED light are arranged in a triangular shape, the condenser cup covers the outer peripheral side of the light mixing cover, and the condenser lens is disposed on the condenser cup. At the light exit.
  • the condenser lens includes a light-incident side and a light-exit side, and the light-incident side is provided with a plurality of semi-cylindrical first strips, and a plurality of the first The strips are arranged side by side and the adjacent first strips are in contact with each other; a plurality of semi-cylindrical second strips are arranged on the light emitting side, and the plurality of the second strips are arranged side by side and adjacent to each other The second strips are in contact with each other;
  • the width of the first strip is greater than the width of the second strip.
  • At least part of the second strip-shaped body is disposed at a boundary between the first strip-shaped bodies.
  • An embodiment of the present invention provides another side-type backlight module, which includes:
  • the reflective backplane includes a diffuse reflection surface, which is used to diffusely reflect part of the light emitted by the light source assembly and radiate to the double-sided prism diffuser;
  • the double-sided prism diffusion plate is configured to scatter and emit light reflected by the reflective back plate and part of the light emitted by the light source assembly, and is disposed at the front end of the diffuse reflection surface of the reflective back plate;
  • the light source component is configured to provide a light source for the backlight module, and emit light to the reflective back plate and the double-sided prism diffusion plate, and is disposed on the reflective back plate and the double-sided prism diffusion plate. Between, and located on one side of the front end of the diffuse reflection surface of the reflective back plate, or the light source components are located on both sides of the front end of the diffuse reflection surface of the reflective back plate;
  • the light source assembly includes a light source and a light condensing unit arranged in a light emitting direction of the light source.
  • the light source is a white light-emitting component
  • the light-concentrating unit includes a light-concentrating component for reducing a light divergence angle of the light-emitting component.
  • the light-emitting component is an LED lamp
  • the light-condensing component is a condenser lens, a condenser cup, or a combination of a condenser cup and a condenser lens.
  • the light-condensing cup cover is disposed on the LED lamp, and the light-condensing lens is disposed at a light exit of the light-concentrating cup.
  • the light source is a light-emitting component emitting light of three colors of red / green / blue
  • the light-concentrating unit includes a light-emitting component covering the light-emitting component.
  • a light mixing cover and a light condensing component provided on the outer peripheral side of the light mixing cover and used to reduce a light divergence angle of the light emitting component.
  • the light-emitting component is a combination of red LED light, green LED light, and blue LED light
  • the light-concentrating component is a light-condensing cup and Combination of condenser lenses
  • the red light LED light, the green light LED light and the blue light LED light are arranged in a triangular shape, the condenser cup covers the outer peripheral side of the light mixing cover, and the condenser lens is disposed on the condenser cup. At the light exit.
  • the condenser lens includes a light-incident side and a light-exit side, and the light-incident side is provided with a plurality of semi-cylindrical first strips, and a plurality of the The first strips are arranged side by side and the adjacent first strips are in contact with each other; the light emitting side is provided with a plurality of semi-cylindrical second strips, and the second strips are arranged side by side and Adjacent second strips are in contact with each other;
  • the width of the first strip is greater than the width of the second strip.
  • At least part of the second strip-shaped body is disposed at a boundary between the first strip-shaped bodies.
  • the side-type backlight module includes a brightness enhancement film provided on a light-emitting side of the double-sided prism diffuser plate and a frame provided on a peripheral side of the reflective back plate.
  • the light source component is disposed on a side of the frame facing the reflective back plate.
  • the invention also relates to a display device, which includes a display panel and an edge-lit backlight module.
  • the edge-lit backlight module includes:
  • the reflective backplane includes a diffuse reflection surface, which is used to diffusely reflect part of the light emitted by the light source assembly and radiate to the double-sided prism diffuser;
  • the double-sided prism diffusion plate is configured to scatter and emit light reflected by the reflective back plate and part of the light emitted by the light source assembly, and is disposed at the front end of the diffuse reflection surface of the reflective back plate;
  • the light source component is configured to provide a light source for the backlight module, and emit light to the reflective back plate and the double-sided prism diffusion plate, and is disposed on the reflective back plate and the double-sided prism diffusion plate. Between, and located on one side of the front end of the diffuse reflection surface of the reflective back plate, or the light source components are located on both sides of the front end of the diffuse reflection surface of the reflective back plate;
  • the light source assembly includes a light source and a light condensing unit arranged in a light emitting direction of the light source.
  • the light source is a white light-emitting component
  • the light-concentrating unit includes a light-concentrating component for reducing a light divergence angle of the light-emitting component.
  • the light-emitting component is an LED lamp
  • the light-condensing component is a condenser lens, a condenser cup, or a combination of a condenser cup and a condenser lens
  • the light-condensing cup cover is disposed on the LED lamp, and the light-condensing lens is disposed at a light exit of the light-concentrating cup.
  • the light source is a light-emitting component emitting three colors of red / green / blue light
  • the light-concentrating unit includes a mixed light cover and a cover covering the light-emitting component.
  • a light condensing component provided on an outer peripheral side of the light mixing cover and used to reduce a light divergence angle of the light emitting component.
  • the light-emitting component is a combination of a red light LED lamp, a green light LED lamp, and a blue light LED lamp
  • the light-condensing component is a combination of a condenser cup and a condenser lens
  • the red light LED light, the green light LED light and the blue light LED light are arranged in a triangular shape, the condenser cup covers the outer peripheral side of the light mixing cover, and the condenser lens is disposed on the condenser cup. At the light exit.
  • the condensing lens includes a light-incident side and a light-exit side, and the light-incident side is provided with a plurality of first semi-cylindrical strips, and the plurality of first strips are arranged side by side.
  • the first strips arranged and adjacent to each other are in contact with each other;
  • a plurality of semi-cylindrical second strips are arranged on the light emitting side, and the second strips are arranged next to each other and adjacent to the first strip. The two strips are in contact with each other;
  • the width of the first strip is greater than the width of the second strip.
  • At least a part of the second strips is disposed at a boundary between the first strips.
  • the side-type backlight module includes a brightness enhancement film provided on a light-emitting side of the double-sided prism diffuser plate and a frame provided on a peripheral side of the reflective back plate, and the light source assembly is provided. The side of the frame facing the reflective back plate.
  • the beneficial effect of the present invention is that the side-type backlight module and the display device of the present invention are provided by a combination of a light source component, a reflective back plate, and a double-sided prism diffuser plate, and the light reflected by the reflective back plate and the light source component Part of the emitted light is subjected to a scattering treatment to form a surface light source; the existing edge-lit backlight module and the display device have a technical problem that the light efficiency is poor due to the light guide plate, thereby affecting the display color.
  • FIG. 1 is a schematic structural diagram of a first preferred embodiment of a side-type backlight module according to the present invention
  • FIG. 2 is an enlarged view of A in FIG. 1;
  • FIG. 3 is a schematic structural diagram of a condenser lens of a first preferred embodiment of an edge-type backlight module of the present invention
  • FIG. 4 is a schematic structural diagram of a second preferred embodiment of a side-type backlight module according to the present invention.
  • FIG. 5 is an enlarged view of C in FIG. 4;
  • FIG. 6 is a schematic structural diagram of a light source and a PCB circuit board according to a second preferred embodiment of the edge-type backlight module of the present invention.
  • FIG. 1 is a schematic structural diagram of a first preferred embodiment of an edge-lit backlight module according to the present invention
  • FIG. 2 is an enlarged view of A in FIG. 1
  • the edge-lit backlight module of the first preferred embodiment includes a reflective back plate 11, a double-sided prism diffuser plate 12, a light source assembly, a brightness enhancement film 17, and a frame 18.
  • the reflective back plate 11 includes a diffuse reflection surface for diffusely reflecting a part of the light emitted from the light source assembly and radiates the light to the double-sided prism diffuser plate 12; the double-sided prism diffuser plate 12 is used for the reflective back plate 11 The reflected light and a part of the light emitted by the light source component are scattered and emitted, and are arranged at the front of the diffuse reflection surface of the reflective back plate 11; the light source component is used to provide a light source for the backlight module and emit the light to the reflective back plate 11 And the double-sided prism expansion 12 diffuser plate, which is disposed between the reflective back plate 11 and the double-sided prism diffusion plate 12 and is located on the side of the front end of the diffuse reflection surface of the reflective back plate 11 or the light source component is located in front of the diffuse reflection of the reflective back plate 11 Sides of the end.
  • the brightness enhancement film 17 is disposed on the light-emitting side of the double-sided prism diffuser plate 12; the frame 18 is disposed on the
  • the light source assembly includes a PCB circuit board 13, a light source 14 disposed on the PCB circuit board 13, and a light collecting unit disposed in a light emitting direction of the light source 14.
  • the PCB circuit board 13 is disposed on a side of the frame 18 facing the reflective back plate 11.
  • the reflective back plate 11 is used for performing diffuse reflection processing on a part of the light emitted by the light source assembly, so that a uniform light spot can be obtained on the double-sided prism diffuser plate 12, and the diffuse reflection surface of the reflective back plate 11 is provided with a microstructure for diffuse reflection. For example, the bumps or pits of the mesh structure, or the V-shaped grooves arranged side by side.
  • the double-sided prism diffuser plate 12 is used to collect the light glancing at a large angle to avoid the severe Fresnel reflection phenomenon caused by the large angle glancing.
  • the side-type backlight module of this embodiment is provided by a combination of a light source component, a reflective back plate 11 and a double-sided prism diffuser plate 12 to scatter the light reflected by the reflective back plate 11 and a part of the light emitted by the light source component and form The surface light source emits light, thereby realizing the formation of a surface light source without a light guide plate.
  • two light source components are provided, and the two light source components are disposed on both sides of the front end of the diffuse reflection surface of the reflective back plate 11.
  • the arrangement of the two sets of light source components improves the uniformity of light emission of the entire embodiment, and avoids the problem of strong light on one side and weak light on the other side.
  • a group of light source components can also be arranged on the front side of the diffuse reflection surface of the reflective back plate.
  • the light source 14 is a light-emitting component that emits white light
  • the light-concentrating unit includes a light-concentrating component for reducing a light divergence angle of the light-emitting component.
  • the light-emitting component 14 is an LED lamp, and the light-condensing component is a condenser lens, a condenser cup, or a combination of a condenser cup and a condenser lens.
  • the LED lights emit 180 °.
  • the light-condensing component is a combination of the light-condensing cup 15 and the light-condensing lens 16
  • the light-condensing cup 15 is disposed on the LED lamp
  • the light-condensing lens 16 is disposed at the light exit of the light-condensing cup 15.
  • the condenser lens 16 focuses the light collected by the condenser cup 15 a second time to further reduce the divergence angle of the light. Expand the grazing area.
  • the condenser lens 16 includes a light-incident side and a light-exit side.
  • the light-incident side is provided with a plurality of semi-cylindrical first strip-shaped bodies 161, and the plurality of first strip-shaped bodies 161 are arranged side by side and adjacent to each other.
  • the shaped bodies 161 are in contact with each other;
  • a plurality of semi-cylindrical second strip bodies 162 are provided on the light emitting side, and the plurality of second strip bodies 162 are arranged side by side and adjacent second strip bodies 162 are in contact with each other;
  • the width of 161 is larger than the width of the second strip-shaped body 162.
  • the curved surface of the first strip-shaped body 161 is a light-incident surface
  • the curved surface of the second strip-shaped body 162 is a light-emitting surface, so that light enters from a large curved surface and small curved surfaces exit to realize the collection of light and reduce the emission of light angle.
  • the second strips 162 is disposed at a junction between the first strips 161. Improved the effect of light gathering.
  • the light source (light-emitting part 14) in the light source assembly emits light.
  • the light is focused for the first time through the condenser cup 15 to reduce the divergence angle of the light, and then the light focused for the first time is collected through the condenser lens 16 for the first time. Secondary focusing, further reducing the emission angle of the light;
  • the double-sided prism diffuser plate 12 a part of the light emitted from the light source assembly is directly radiated to the double-sided prism diffuser plate 12, and the other part of the light emitted from the light source assembly is radiated to the reflective back plate 11, and then the reflective back plate 11 is diffusely reflected, and the radiation is directed to the double-sided prism diffuser 12 ;
  • the light radiated to the double-sided prism diffusion plate 12 passes through the scattering effect of the double-sided prism diffusion plate 12 to form a surface light source and emits light.
  • the reflective back plate 21 includes a diffuse reflection surface for diffusely reflecting a part of the light emitted from the light source assembly and radiating the light to the double-sided prism diffusion plate 22.
  • the double-sided prism diffuser plate 22 is used to scatter the light reflected by the reflective back plate 21 and a part of the light emitted by the light source component and emit light, and is arranged at the front of the diffuse reflection surface of the reflective back plate 21; the light source component is used as a backlight
  • the module provides a light source and emits light to the reflective back plate 21 and the double-sided prism diffuser 22, which is located between the reflective back plate 21 and the double-sided prism diffuser 22 and located at the front of the diffuse reflection surface of the reflective back plate 21
  • One side, or the light source assembly is located on both sides of the front end of the diffuse reflection surface of the reflective back plate 11; the brightness enhancement film 28 is disposed on the light emitting side of the double-sided prism diffuser plate 22; and the
  • the light source assembly includes a PCB circuit board 23, a light source 24 disposed on the PCB circuit board 23, and a light collecting unit disposed in a light emitting direction of the light source 24.
  • the PCB circuit board 23 is disposed on a side of the frame 29 facing the reflective back plate 21.
  • the light source 24 is a light-emitting component 24 that emits light of three colors of red / green / blue
  • the light-concentrating unit includes a light-mixing cover 25 covering the light-emitting component 24 and a light-shielding component 25 A light condensing unit on the outer peripheral side of the photomask 25 for reducing a light divergence angle of the light emitting unit 24.
  • the light-emitting component 24 is a combination of a red LED lamp 241, a green-light LED lamp 242, and a blue-light LED lamp 243, and the light-condensing component is a combination of a condenser cup 26 and a condenser lens 27.
  • the red LED lights 241, the green LED lights 242, and the blue LED lights 243 are arranged in a triangular shape.
  • the condenser cup 26 covers the outer peripheral side of the hybrid cover 25, and the condenser lens 27 is provided at the light exit of the condenser cup 26. .
  • the second preferred embodiment uses a three-color color light source, which can generate a variety of color outputs.
  • the three-color LED lights are calculated by the color sequence method, and the characteristics of human vision persistence are used to achieve the effect of full color. This improves the displayed color.
  • the function of the light mixing cover 25 is to uniformly mix the three colors of light, thereby obtaining uniformly mixed white light.
  • the surface of the light mixing cover 25 is provided with a large number of microstructures for light mixing.
  • the structure of the condenser lens 27 in the second preferred embodiment is the same as the structure of the condenser lens of the first preferred embodiment.
  • the light source (light-emitting component 24) in the light source assembly emits three-color light, and after mixing by the light mixing cover 25, it emits uniform white light.
  • the light is collected for the first time by the condenser cup 26 to reduce the divergence angle of the light.
  • the light that has been collected for the first time is collected for the second time by the condenser lens 27 to further reduce the emission angle of the light;
  • the double-sided prism diffuser plate 22 a part of the light emitted from the light source component is directly radiated to the double-sided prism diffuser plate 22, and the other part of the light emitted from the light source component is radiated to the reflective back plate 21, and then the reflective back plate 21 is diffusely reflected, and the radiation is directed to the double-sided prism diffuser 22 ;
  • the light radiated to the double-sided prism diffuser plate 22 is diffused by the double-sided prism diffuser plate 22 to form a surface light source and emit light.
  • the present invention also relates to a display device, which includes a display panel and the above-mentioned side-type backlight module.
  • the side-type backlight module includes:
  • the reflective backplane includes a diffuse reflection surface, which is used to diffusely reflect part of the light emitted by the light source assembly and radiate to the double-sided prism diffuser;
  • the double-sided prism diffusion plate is configured to scatter and emit light reflected by the reflective back plate and part of the light emitted by the light source assembly, and is disposed at the front end of the diffuse reflection surface of the reflective back plate;
  • the light source component is configured to provide a light source for the backlight module, and emit light to the reflective back plate and the double-sided prism diffusion plate, and is disposed on the reflective back plate and the double-sided prism diffusion plate. Between, and located on one side of the front end of the diffuse reflection surface of the reflective back plate, or the light source components are located on both sides of the front end of the diffuse reflection surface of the reflective back plate;
  • the light source assembly includes a light source and a light condensing unit arranged in a light emitting direction of the light source.
  • the light source is a white light-emitting component
  • the light-concentrating unit includes a light-concentrating component for reducing a light divergence angle of the light-emitting component.
  • the light-emitting component is an LED lamp
  • the light-condensing component is a condenser lens, a condenser cup, or a combination of a condenser cup and a condenser lens
  • the light-condensing cup cover is disposed on the LED lamp, and the light-condensing lens is disposed at a light exit of the light-concentrating cup .
  • the light source is a light-emitting component emitting three colors of red / green / blue light
  • the light-concentrating unit includes a mixed light cover and a cover covering the light-emitting component.
  • a light condensing component provided on an outer peripheral side of the light mixing cover and used to reduce a light divergence angle of the light emitting component.
  • the light-emitting component is a combination of a red light LED lamp, a green-light LED lamp, and a blue-light LED lamp
  • the light-condensing component is a combination of a condenser cup and a condenser lens
  • the red light LED light, the green light LED light and the blue light LED light are arranged in a triangular shape, the condenser cup covers the outer peripheral side of the light mixing cover, and the condenser lens is disposed on the condenser cup. At the light exit.
  • the condensing lens includes a light-incident side and a light-exit side, and the light-incident side is provided with a plurality of first semi-cylindrical strips, and the plurality of first strips are arranged side by side.
  • the first strips arranged and adjacent to each other are in contact with each other;
  • a plurality of semi-cylindrical second strips are arranged on the light emitting side, and the second strips are arranged next to each other and adjacent to the first strip. The two strips are in contact with each other;
  • the width of the first strip is greater than the width of the second strip.
  • At least a part of the second strips is disposed at a boundary between the first strips.
  • the side-type backlight module includes a brightness enhancement film provided on a light-emitting side of the double-sided prism diffuser plate and a frame provided on a peripheral side of the reflective back plate, and the light source assembly is provided. The side of the frame facing the reflective back plate.
  • the side-type backlight module and the display device of the present invention are provided by a combination of a light source component, a reflective back plate, and a double-sided prism diffuser plate. Part of the light emitted by the light source component is subjected to a scattering treatment to form a surface light source; the existing edge-lit backlight module and the display device have a technical problem that the light efficiency is poor due to the light guide plate, thereby affecting the display color.

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

本发明提供一种侧入式背光模组及显示装置,包括光源组件、反光背板和双面棱镜扩散板,双面棱镜扩散板设置在反光背板漫反射面的前端;光源组件设置在反光背板和双面棱镜扩散板之间,且位于反光背板漫反射面前端的一侧或两侧。本发明通过光源组件、反光背板和双面棱镜扩散板的组合设置,实现无导光板的面光源出光。

Description

侧入式背光模组及显示装置 技术领域
本发明涉及一种显示技术,特别涉及一种侧入式背光模组及显示装置。
背景技术
现有LCD多采用LED聚光模组以获得更好的显示色彩,传统LED聚光模组根据光源的位置分为直下式LED聚光模组和侧入式LED聚光模组,侧入式聚光模组由于采用了导光板这种光学元件因此可以制做得非常薄,利于LCD显示器的薄型化发展,导光板的引入,存在以下问题:一是,光效大幅度下降,并且由于LED在照明过程中产生大量的热量,因此在侧入式聚光模组狭小的腔体内会造成温度过高,进而引发导光板的翘曲问题,从而引起光效的进一步下降;二是,随着导光板材料的老化,会对特定的发光波长产生消光,这一问题将进一步影响显示色彩。并且由于复杂的光学结构,使得生产成本增加。
基于上述问题, 本申请公开了一种无导光板的侧入式LED背光模组, 以解决上述技术问题。
技术问题
本发明实施例提供一种无导光板的侧入式背光模组和显示装置;以解决现有的侧入式背光模组和显示装置因导光板而存在光效不佳,进而影响显示色彩的技术问题。
技术解决方案
本发明实施例提供一种侧入式背光模组,其包括:
反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;
所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
增亮膜,设置在所述双面棱镜扩散板出光一侧;以及
边框,设置在所述反光背板周侧,所述光源组件设置在所述边框面向所述反光背板的一侧;
所述光源组件包括光源和设置在所述光源出光方向的聚光单元;
所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
在本发明的侧入式背光模组中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的侧入式背光模组中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
所述第一条状体的宽度大于所述第二条状体的宽度。
在本发明的侧入式背光模组中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
本发明实施例提供另一种侧入式背光模组,其包括:
反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;以及
所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
所述光源组件包括光源和设置在所述光源出光方向的聚光单元。
在本发明的另一侧入式背光模组的第一技术方案中,所述光源为白色发光部件,所述聚光单元包括一用于缩小所述发光部件的光线发散角度的聚光部件。
在本发明的另一侧入式背光模组的第一技术方案中,所述发光部件为LED灯,所述聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合,
当所述聚光部件为所述聚光杯和聚光透镜的组合时,所述聚光杯罩设在所述LED灯上,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的另一侧入式背光模组的第二技术方案中,所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
在本发明的另一侧入式背光模组的第二技术方案中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的另一侧入式背光模组中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
所述第一条状体的宽度大于所述第二条状体的宽度。
在本发明的另一侧入式背光模组中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
在本发明的另一侧入式背光模组,所述侧入式背光模组包括设置在所述双面棱镜扩散板出光一侧的增亮膜和设置在所述反光背板周侧的边框,所述光源组件设置在所述边框面向所述反光背板的一侧。
本发明还涉及一种显示装置,包括显示面板和侧入式背光模组,所述侧入式背光模组包括:
反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;以及
所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
所述光源组件包括光源和设置在所述光源出光方向的聚光单元。
在本发明的显示装置的第一技术方案中,所述光源为白色发光部件,所述聚光单元包括一用于缩小所述发光部件的光线发散角度的聚光部件。
在本发明的显示装置的第一技术方案中,所述发光部件为LED灯,所述聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合,
当所述聚光部件为所述聚光杯和聚光透镜的组合时,所述聚光杯罩设在所述LED灯上,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的显示装置的第二技术方案中,所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
在本发明的显示装置的第二技术方案中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的显示装置中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
所述第一条状体的宽度大于所述第二条状体的宽度。
在本发明的显示装置中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
在本发明的显示装置,所述侧入式背光模组包括设置在所述双面棱镜扩散板出光一侧的增亮膜和设置在所述反光背板周侧的边框,所述光源组件设置在所述边框面向所述反光背板的一侧。
有益效果
本发明的有益效果为:本发明的侧入式背光模组和显示装置通过光源组件、反光背板和双面棱镜扩散板的组合设置,将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并形成面光源出光;解决了现有的侧入式背光模组和显示装置因导光板而存在光效不佳,进而影响显示色彩的技术问题。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面对实施例中所需要使用的附图作简单的介绍。下面描述中的附图仅为本发明的部分实施例,对于本领域普通技术人员而言,在不付出创造性劳动的前提下,还可以根据这些附图获取其他的附图。
图1为本发明的侧入式背光模组的第一优选实施例的结构示意图;
图2为图1中A的放大图;
图3为本发明的侧入式背光模组的第一优选实施例的聚光透镜的结构示意图;
图4为本发明的侧入式背光模组的第二优选实施例的结构示意图;
图5为图4中C的放大图;
图6为本发明的侧入式背光模组的第二优选实施例的光源和PCB电路板的结构示意图。
本发明的最佳实施方式
请参照附图中的图式,其中相同的组件符号代表相同的组件。以下的说明是基于所例示的本发明具体实施例,其不应被视为限制本发明未在此详述的其它具体实施例。
请参照图1至图3,图1为本发明的侧入式背光模组的第一优选实施例的结构示意图;图2为图1中A的放大图;图3为本发明的侧入式背光模组的第一优选实施例的聚光透镜的结构示意图。
本第一优选实施例的侧入式背光模组,其包括反光背板11、双面棱镜扩散板12、光源组件、增亮膜17和边框18。
具体的,反光背板11包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板12;双面棱镜扩散板12用于将反光背板11反射的光线和光源组件发射出的部分光线进行散射处理并出光,其设置在反光背板11漫反射面的前端;光源组件用于为背光模组提供光源,并将光线发射至反光背板11和双面棱镜扩12散板,其设置在反光背板11和双面棱镜扩散板12之间,且位于反光背板11漫反射面前端的一侧,或光源组件位于反光背板11漫反射面前端的两侧。增亮膜17设置在双面棱镜扩散板12出光一侧的;边框18设置在反光背板11周侧。
光源组件包括PCB电路板13、设置在PCB电路板13上的光源14和设置在光源14出光方向的聚光单元。PCB电路板13设置在边框18面向反光背板11的一侧。
反光背板11用于对光源组件发出的部分光线进行漫反射处理,进而可以在双面棱镜扩散板12上获得均匀的光斑,反光背板11的漫反射面设置有用于漫反射的微结构,比如网状结构的凸点或凹点、亦或者是并排设置的V型槽等。双面棱镜扩散板12用于对大角度掠射的光线进行收集,以避免大角度掠射产生严重的菲涅尔反射现象。
本实施例的侧入式背光模组通过光源组件、反光背板11和双面棱镜扩散板12的组合设置,将反光背板11反射的光线和光源组件发射出的部分光线进行散射处理并形成面光源出光,从而实现在无导光板的条件下,形成面光源。
在本第一优选实施例中,光源组件设置两个,两个光源组件设置在反光背板11漫反射面前端的两侧。两组光源组件的设置,提高了整个实施例的发光的均匀性,避免了一侧光线较强,另一侧光线较弱的问题。当然,如果背光模组的宽度较小的话,也可以采用一组光源组件设置在反光背板漫反射面前端的一侧。
在第一优选实施例的侧入式背光模组中,光源14为发白色光的发光部件,聚光单元包括一用于缩小发光部件的光线发散角度的聚光部件。
可选的,发光部件14为LED灯,聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合。LED灯180°发光。
优选的,聚光部件为聚光杯15和聚光透镜16的组合时,聚光杯15罩设在LED灯上,聚光透镜16设置在聚光杯15的出光口处。其中,通过聚光杯15的第一次聚光,以缩小LED灯的光线发散角度,聚光透镜16将聚光杯15汇集的光线进行第二次聚光,以进一步缩小光线的发散角度,扩大掠射面积。
具体的,聚光透镜16包括一入光侧和出光侧,入光侧设置有多个半圆柱状的第一条状体161,多个第一条状体161并排设置且相邻的第一条状体161相互接触;出光侧设置有多个半圆柱状的第二条状体162,多个第二条状体162并排设置且相邻的第二条状体162相互接触;第一条状体161的宽度大于第二条状体162的宽度。
其中,第一条状体161的曲面为入光面,第二条状体162的曲面为出光面,使得光线从大的曲面进入,小的曲面出,以实现光线的汇集,缩小光线的发射角度。
进一步的,至少部分162第二条状体设置在161第一条状体之间的交界处。提高了光线汇集的效果。
本第一优选实施的工作原理是:
首先,光源组件中的光源(发光部件14)发出光线,光线经过聚光杯15进行第一次聚光,缩小光线的发散角度,随后经过第一次聚光的光线经过聚光透镜16进行第二次聚光,进一步缩小光线的发射角度;
然后,从光源组件发出光线的一部分直接辐射向双面棱镜扩散板12,光源组件发出光线的另一部分辐射向反光背板11,后进反光背板11漫反射处理,辐射向双面棱镜扩散板12;
最后,辐射向双面棱镜扩散板12的光线经过双面棱镜扩散板12的散射作用,形成面光源并出光。
这样便完成了本第一优选实施例的工作过程。
请参照图3至图5,在本第二优选实施例中,反光背板21包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板22;双面棱镜扩散板22用于将反光背板21反射的光线和光源组件发射出的部分光线进行散射处理并出光,其设置在反光背板21漫反射面的前端;光源组件用于为背光模组提供光源,并将光线发射至反光背板21和双面棱镜扩22散板,其设置在反光背板21和双面棱镜扩散板22之间,且位于反光背板21漫反射面前端的一侧,或光源组件位于反光背板11漫反射面前端的两侧;增亮膜28设置在双面棱镜扩散板22出光一侧的;边框29设置在反光背板21周侧。
光源组件包括PCB电路板23、设置在PCB电路板23上的光源24和设置在光源24出光方向的聚光单元。PCB电路板23设置在边框29面向反光背板21的一侧。
与第一优选实施例的不同之处在于:光源24为发出红/绿/蓝三种颜色光线的发光组件24,聚光单元包括一罩设发光组件24的混光罩25和罩设在混光罩25外周侧的用于缩小发光组件24的光线发散角度的聚光组件。
发光组件24为红光LED灯241、绿光LED灯242和蓝光LED灯243的组合,聚光组件为聚光杯26和聚光透镜27的组合。
红光LED灯241、绿光LED灯242和蓝光LED灯243呈三角形状分布设置,聚光杯26罩设混光罩25的外周侧,聚光透镜27设置在聚光杯26的出光口处。
本第二优选实施例采用三色色彩光源,可以产生多样化色彩输出,以三色LED灯采用色序法计算,利用人类视觉暂留的特性,达到全彩的效果。进而提高显示的色彩。
混光罩25的作用在于将三色光线进行均匀混合,进而得到混合均匀的白色光。其中混光罩25的表面设置有大量用于混光的微结构。
本第二优选实施例中的聚光透镜27的结构和第一优选实施例的聚光透镜的结构一致。
本第二优选实施例的工作过程是:
首先,光源组件中的光源(发光部件24)发出三色光线,经混光罩25进行混合后,射出均匀的白色光线,光线经过聚光杯26进行第一次聚光,缩小光线的发散角度,随后经过第一次聚光的光线经过聚光透镜27进行第二次聚光,进一步缩小光线的发射角度;
然后,从光源组件发出光线的一部分直接辐射向双面棱镜扩散板22,光源组件发出光线的另一部分辐射向反光背板21,后进反光背板21漫反射处理,辐射向双面棱镜扩散板22;
最后,辐射向双面棱镜扩散板22的光线经过双面棱镜扩散板22的散射作用,形成面光源并出光。
这样便完成了本第二优选实施例的工作过程。
本发明还涉及一种显示装置,包括显示面板和上述的侧入式背光模组,所述侧入式背光模组包括:
反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;以及
所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
所述光源组件包括光源和设置在所述光源出光方向的聚光单元。
在本发明的显示装置的第一技术方案中,所述光源为白色发光部件,所述聚光单元包括一用于缩小所述发光部件的光线发散角度的聚光部件。
在本发明的显示装置的第一技术方案中,所述发光部件为LED灯,所述聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合,
当所述聚光部件为所述聚光杯和聚光透镜的组合时,所述聚光杯罩设在所述LED灯上,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的显示装置的第二技术方案中,所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
在本发明的显示装置的第二技术方案中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
在本发明的显示装置中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
所述第一条状体的宽度大于所述第二条状体的宽度。
在本发明的显示装置中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
在本发明的显示装置,所述侧入式背光模组包括设置在所述双面棱镜扩散板出光一侧的增亮膜和设置在所述反光背板周侧的边框,所述光源组件设置在所述边框面向所述反光背板的一侧。
相较于现有技术的背光模组,本发明的侧入式背光模组和显示装置通过光源组件、反光背板和双面棱镜扩散板的组合设置,将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并形成面光源出光;解决了现有的侧入式背光模组和显示装置因导光板而存在光效不佳,进而影响显示色彩的技术问题。
本发明尽管已经相对于一个或多个实现方式示出并描述了本公开,但是本领域技术人员基于对本说明书和附图的阅读和理解将会想到等价变型和修改。本公开包括所有这样的修改和变型,并且仅由所附权利要求的范围限制。此外,尽管本公开的特定特征已经相对于若干实现方式中的仅一个被公开,但是这种特征可以与如可以对给定或特定应用而言是期望和有利的其他实现方式的一个或多个其他特征组合。而且,就术语“包括”、“具有”、“含有”或其变形被用在具体实施方式或权利要求中而言,这样的术语旨在以与术语“包含”相似的方式包括。
综上所述,虽然本发明已以实施例揭露如上,实施例前的序号,如“第一”、“第二”等仅为描述方便而使用,对本发明各实施例的顺序不造成限制。并且,上述实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种侧入式背光模组,其包括:
    反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
    所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;
    所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
    增亮膜,设置在所述双面棱镜扩散板出光一侧;以及
    边框,设置在所述反光背板周侧,所述光源组件设置在所述边框面向所述反光背板的一侧;
    所述光源组件包括光源和设置在所述光源出光方向的聚光单元;
    所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
  2. 根据权利要求1所述的侧入式背光模组,其中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
    所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
  3. 根据权利要求2所述的侧入式背光模组,其中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
    所述第一条状体的宽度大于所述第二条状体的宽度。
  4. 根据权利要求3所述的侧入式背光模组,其中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
  5. 一种侧入式背光模组,其包括:
    反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
    所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;以及
    所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
    所述光源组件包括光源和设置在所述光源出光方向的聚光单元。
  6. 根据权利要求5所述的侧入式背光模组,其中,所述光源为白色发光部件,所述聚光单元包括一用于缩小所述发光部件的光线发散角度的聚光部件。
  7. 根据权利要求6所述的侧入式背光模组,其中,所述发光部件为LED灯,所述聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合,
    当所述聚光部件为所述聚光杯和聚光透镜的组合时,所述聚光杯罩设在所述LED灯上,所述聚光透镜设置在所述聚光杯的出光口处。
  8. 根据权利要求7所述的侧入式背光模组,其中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
    所述第一条状体的宽度大于所述第二条状体的宽度。
  9. 根据权利要求8所述的侧入式背光模组,其中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
  10. 根据权利要求5所述的侧入式背光模组,其中,所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
  11. 根据权利要求10所述的侧入式背光模组,其中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
    所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
  12. 根据权利要求11所述的侧入式背光模组,其中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
    所述第一条状体的宽度大于所述第二条状体的宽度。
  13. 根据权利要求12所述的侧入式背光模组,其中,至少部分所述第二条状体设置在所述第一条状体之间的交界处。
  14. 根据权利要求5所述的侧入式背光模组,其中,所述侧入式背光模组包括设置在所述双面棱镜扩散板出光一侧的增亮膜和设置在所述反光背板周侧的边框,所述光源组件设置在所述边框面向所述反光背板的一侧。
  15. 一种显示装置,包括显示面板,其中,所述显示装置还包括一侧入式背光模组,所述侧入式背光模组包括:
    反光背板,包括一漫反射面,用于将光源组件发出的部分光线进行漫反射处理,并辐射至双面棱镜扩散板;
    所述双面棱镜扩散板,用于将所述反光背板反射的光线和所述光源组件发射出的部分光线进行散射处理并出光,设置在所述反光背板漫反射面的前端;以及
    所述光源组件,用于为所述背光模组提供光源,并将光线发射至所述反光背板和所述双面棱镜扩散板,设置在所述反光背板和所述双面棱镜扩散板之间,且位于所述反光背板漫反射面前端的一侧,或所述光源组件位于所述反光背板漫反射面前端的两侧;
    所述光源组件包括光源和设置在所述光源出光方向的聚光单元。
  16. 根据权利要求15所述的显示装置,其中,所述光源为白色发光部件,所述聚光单元包括一用于缩小所述发光部件的光线发散角度的聚光部件。
  17. 根据权利要求16所述的显示装置,其中,所述发光部件为LED灯,所述聚光部件为聚光透镜、聚光杯或聚光杯和聚光透镜的组合,
    当所述聚光部件为所述聚光杯和聚光透镜的组合时,所述聚光杯罩设在所述LED灯上,所述聚光透镜设置在所述聚光杯的出光口处。
  18. 根据权利要求15所述的显示装置,其中,所述光源为发出红/绿/蓝三种颜色光线的发光组件,所述聚光单元包括一罩设所述发光组件的混光罩和罩设在所述混光罩外周侧的用于缩小所述发光组件的光线发散角度的聚光组件。
  19. 根据权利要求18所述的显示装置,其中,所述发光组件为红光LED灯、绿光LED灯和蓝光LED灯的组合,所述聚光组件为聚光杯和聚光透镜的组合;
    所述红光LED灯、绿光LED灯和蓝光LED灯呈三角形状分布设置,所述聚光杯罩设所述混光罩的外周侧,所述聚光透镜设置在所述聚光杯的出光口处。
  20. 根据权利要求19所述的显示装置,其中,所述聚光透镜包括一入光侧和出光侧,所述入光侧设置有多个半圆柱状的第一条状体,多个所述第一条状体并排设置且相邻的所述第一条状体相互接触;所述出光侧设置有多个半圆柱状的第二条状体,多个所述第二条状体并排设置且相邻的所述第二条状体相互接触;
    所述第一条状体的宽度大于所述第二条状体的宽度。
PCT/CN2018/104258 2018-08-15 2018-09-06 侧入式背光模组及显示装置 WO2020034275A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810928655.3 2018-08-15
CN201810928655.3A CN109061942B (zh) 2018-08-15 2018-08-15 侧入式背光模组及显示装置

Publications (1)

Publication Number Publication Date
WO2020034275A1 true WO2020034275A1 (zh) 2020-02-20

Family

ID=64686990

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/104258 WO2020034275A1 (zh) 2018-08-15 2018-09-06 侧入式背光模组及显示装置

Country Status (2)

Country Link
CN (1) CN109061942B (zh)
WO (1) WO2020034275A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109976037B (zh) * 2019-04-04 2021-12-03 Tcl华星光电技术有限公司 一种侧入式背光源及其显示装置
CN110432024A (zh) * 2019-07-22 2019-11-12 华南理工大学 一种带有聚光器的无导光板侧入式红绿蓝cob光源装置
CN110515236A (zh) * 2019-08-20 2019-11-29 深圳市华星光电技术有限公司 背光模组及显示装置
CN113219730A (zh) * 2021-05-17 2021-08-06 嘉兴追光智能科技有限公司 白光led照明灯具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5887964A (en) * 1995-08-01 1999-03-30 Nitto Jushi Kogyo Kabushiki Kaisha Surface light source device and liquid crystal display
CN104776344A (zh) * 2015-05-05 2015-07-15 合肥鑫晟光电科技有限公司 Led灯条、背光源及显示装置
CN205979348U (zh) * 2016-06-28 2017-02-22 金华斯玛特信息科技有限公司 一种侧入式led背光模组
CN106842701A (zh) * 2017-01-11 2017-06-13 深圳市华星光电技术有限公司 一种背光模组和液晶显示器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000284105A (ja) * 1999-03-30 2000-10-13 Hitachi Ltd 光学素子、光学素子を備えた映像装置、及び光学素子の製造方法
TWI255924B (en) * 2005-03-16 2006-06-01 Au Optronics Corp Backlight module and brightness enhancement film thereof
CN203309555U (zh) * 2013-03-01 2013-11-27 佛山市顺德区兰晶照明电器有限公司 防逸散光led照明灯具
CN103994367A (zh) * 2014-05-08 2014-08-20 杭州杭科光电股份有限公司 侧入式led背光源模组
CN104864314A (zh) * 2015-05-29 2015-08-26 厦门迈信电子科技有限公司 一种侧发光无导光板led面板灯
CN108361603A (zh) * 2018-05-11 2018-08-03 北京创格致通科技有限公司 一种聚光探照灯及其照明方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5887964A (en) * 1995-08-01 1999-03-30 Nitto Jushi Kogyo Kabushiki Kaisha Surface light source device and liquid crystal display
CN104776344A (zh) * 2015-05-05 2015-07-15 合肥鑫晟光电科技有限公司 Led灯条、背光源及显示装置
CN205979348U (zh) * 2016-06-28 2017-02-22 金华斯玛特信息科技有限公司 一种侧入式led背光模组
CN106842701A (zh) * 2017-01-11 2017-06-13 深圳市华星光电技术有限公司 一种背光模组和液晶显示器

Also Published As

Publication number Publication date
CN109061942A (zh) 2018-12-21
CN109061942B (zh) 2021-03-23

Similar Documents

Publication Publication Date Title
US7175330B1 (en) Light mixing backlight module
US7507011B2 (en) Surface light source equipment and apparatus using the same
EP1693700A1 (en) Light emitting diode unit for a backlight device
CN106842701B (zh) 一种背光模组和液晶显示器
JP5528885B2 (ja) 回折格子を利用した導光板及び液晶テレビ用直下型バックライト装置
WO2020034275A1 (zh) 侧入式背光模组及显示装置
KR20040063385A (ko) 백라이트 유닛
JP2010114073A (ja) 導光板及びこれを有するバックライトアセンブリ並びに表示装置
CN109164638B (zh) 发光模组及其制造方法、直下式背光源
JP2012529670A (ja) 高い制御出力を備えたフラットパネル光学ディスプレイシステム
WO2020042525A1 (zh) 背光模组及液晶显示装置
CN109407405B (zh) 背光模组及显示装置
JPWO2009044584A1 (ja) 照明装置および液晶表示装置
JP2008258146A (ja) 高輝度拡散板
CN109976037B (zh) 一种侧入式背光源及其显示装置
KR100705737B1 (ko) 다중 반사면의 반사판을 구비한 백라이트 유닛
CN107085260A (zh) 侧入式led灯的背光结构及led灯
CN100501525C (zh) 直下式背光模块
KR20010046581A (ko) 표시 장치용 백라이트 장치
CN202472127U (zh) 合光装置和光源
WO2013088594A1 (ja) バックライト装置および液晶表示装置
TWI417586B (zh) 導光板及其製造方法,以及採用該導光板之背光模組
JP6298986B2 (ja) 照明装置
CN208172452U (zh) 具有光调节作用的背光模组及对应的液晶显示装置
JP2011198479A (ja) 面光源および液晶ディスプレイ装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18930239

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18930239

Country of ref document: EP

Kind code of ref document: A1