WO2021047010A1 - 背光模块及显示设备 - Google Patents

背光模块及显示设备 Download PDF

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Publication number
WO2021047010A1
WO2021047010A1 PCT/CN2019/117220 CN2019117220W WO2021047010A1 WO 2021047010 A1 WO2021047010 A1 WO 2021047010A1 CN 2019117220 W CN2019117220 W CN 2019117220W WO 2021047010 A1 WO2021047010 A1 WO 2021047010A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
dot structures
nanostructures
board
display device
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2019/117220
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English (en)
French (fr)
Inventor
黄长治
侯志远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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Filing date
Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US16/772,840 priority Critical patent/US20210116626A1/en
Publication of WO2021047010A1 publication Critical patent/WO2021047010A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL 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
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/13—Devices 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device

Definitions

  • the present invention relates to the field of display technology, and particularly relates to a backlight module and a display device.
  • the liquid crystal display device has a backlight module, and the light guide plate installed in the backlight module mainly guides the light from the edge to the direction of the user's line of sight.
  • the main material of the light guide plate is plastic material, such as acrylic or polycarbonate, and the dot structure in the light guide plate mainly destroys the total reflection of the light in a single direction, and changes the path of the light so that the light can pass farther to reach the surface light source effect.
  • a backlight module includes a light guide plate, a plurality of nanostructures, a plurality of dot structures and a light source.
  • the light guide plate includes a plate body, and the material of the plate body includes glass.
  • the board body includes a first surface, a second surface, and a first side surface. The first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • a plurality of nanostructures are arranged on the first surface of the board body and a plurality of dot structures are arranged on the second surface of the board body.
  • the light source is arranged on the first side surface of the board.
  • the thickness of the plate body is between 0.4-1 mm.
  • the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • the width of the plurality of nanostructures is less than 60 nanometers, and the distance between the plurality of nanostructures is less than 120 nanometers.
  • the plurality of nanostructured materials includes one of aluminum, iron, copper, chromium, silver, and gold.
  • the shape of the multiple dot structures includes one of a circle, a square, a hexagon, an ellipse, and a polygon.
  • the width of the multiple dot structures is between 0.1-1 mm, and the distance between the multiple dot structures is between 0.1-10 mm.
  • a display device includes a backlight module and a display panel arranged on the backlight module.
  • the backlight module includes a light guide plate, a plurality of nanostructures, a plurality of dot structures and a light source.
  • the light guide plate includes a plate body, and the material of the plate body includes glass.
  • the board body includes a first surface, a second surface, and a first side surface. The first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • a plurality of nanostructures are arranged on the first surface of the board body and a plurality of dot structures are arranged on the second surface of the board body.
  • the light source is arranged on the first side surface of the board.
  • the width of the plurality of nanostructures is less than 60 nanometers, and the distance between the plurality of nanostructures is less than 120 nanometers.
  • the width of the multiple dot structures is between 0.1-1 mm, and the distance between the multiple dot structures is between 0.1-10 mm.
  • a display device includes a display panel and a backlight module.
  • the display panel is arranged on the backlight module.
  • the display panel includes a first substrate, a first polarizer, a thin film transistor array substrate, a liquid crystal layer, a color filter, a second polarizer, and a second substrate.
  • the first polarizer and the second polarizer include a plurality of nanostructures.
  • the backlight module includes a light guide plate, a plurality of dot structures and a light source.
  • the light guide plate includes a plate body.
  • the plate body includes a first surface, a second surface and a first side surface.
  • the first surface and the second surface are opposite to each other.
  • the first side surface connects the first surface and the second surface, and the material of the plate body Including glass.
  • a plurality of dot structures are arranged on the second surface of the board body.
  • the light source is arranged on the first side surface of the board.
  • the plurality of nanostructures are a plurality of wire grid patterns.
  • the width of the plurality of wire grid patterns is less than 60 nanometers.
  • the distance between the multiple wire grid patterns is less than 120 nanometers.
  • the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • the plurality of nanostructured materials includes one of aluminum, iron, copper, chromium, silver, and gold.
  • the shape of the multiple dot structures includes one of a circle, a square, a hexagon, an ellipse, and a polygon.
  • the width of the multiple dot structures is between 0.1-1 mm, and the distance between the multiple dot structures is between 0.1-10 mm.
  • the light guide plate with multiple nanostructures and multiple dot structures in the backlight module of the present invention can make the thickness of the display device thinner and increase light penetration to improve screen brightness.
  • Fig. 1 is a schematic diagram of a backlight module according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a quantum dot display device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a quantum dot display device according to another embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a liquid crystal display device according to another embodiment of the present invention.
  • an embodiment of the present invention provides a backlight module 100 including a light guide plate 101, a plurality of nanostructures 102, a plurality of dot structures 103 and a light source 104.
  • the light guide plate 101 includes a plate body, and the material of the plate body includes alkali-free glass.
  • the board includes a first surface, a second surface, and a first side surface. The first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • the thickness of the plate body is between 0.4-1 mm, and the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • the plurality of nanostructures 102 are arranged on the first surface of the board, wherein the width of the plurality of nanostructures 102 is less than 60 nanometers, and the distance between the plurality of nanostructures 102 is less than 120 nanometers.
  • the material of the plurality of nanostructures 102 includes one of aluminum, iron, copper, chromium, silver, and gold. More preferably, the plurality of nanostructures 102 are wire grid polarizers.
  • a plurality of dot structures 103 are arranged on the second surface of the board.
  • the shape of the plurality of dot structures 103 includes one of a circle, a square, a hexagon, an ellipse, and a polygon, and the width of the plurality of dot structures 103 is between 0.1-1 mm, and the plurality of dot structures The distance between 103 and each other is between 0.1-10 mm.
  • the light source 104 is arranged on the first side surface of the board. Due to the light guide plate with multiple nanostructures and multiple dot structures in the backlight module, the thickness of the display device can be reduced, and the light penetration can be increased to improve the brightness of the screen.
  • the quantum dot display device 200 includes a backlight module 100 and a display panel 210 provided on the backlight module 100.
  • the display panel 210 includes a first glass substrate 211, a thin film transistor array substrate 212 disposed on the first glass substrate 211, a liquid crystal layer 213 disposed on the thin film transistor array substrate 212, and a polarizer disposed on the liquid crystal layer 213.
  • the backlight module 100 includes a light guide plate 101, a plurality of nanostructures 102, a plurality of dot structures 103, and a light source 104.
  • the light guide plate 101 includes a plate body, and the material of the plate body includes alkali-free glass.
  • the board body includes a first surface, a second surface, and a first side surface. The first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • the thickness of the plate body is between 0.4-1 mm, and the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • the plurality of nanostructures 102 are arranged on the first surface of the board, wherein the width of the plurality of nanostructures 102 is less than 60 nanometers, and the distance between the plurality of nanostructures 102 is less than 120 nanometers.
  • the material of the plurality of nanostructures 102 includes one of aluminum, iron, copper, chromium, silver, and gold. More preferably, the plurality of nanostructures 102 are wire grid polarizers.
  • a plurality of dot structures 103 are arranged on the second surface of the board, wherein the shape of the plurality of dot structures 103 includes one of a circle, a square, a hexagon, an ellipse and a polygon, and the width of the plurality of dot structures 103 is between It is between 0.1-1 mm, and the distance between the multiple dot structures 103 is between 0.1-10 mm.
  • the light source 104 is arranged on the first side surface of the board.
  • the light source 104 is a light emitting diode.
  • the quantum dot display device 300 includes a backlight module 100 and a display panel 310 provided on the backlight module 100.
  • the display panel 310 includes a first glass substrate 311, a plurality of wire grid polarizing plates 312 disposed on the first glass substrate 311, a thin film transistor array substrate 313 disposed on the plurality of wire grid polarizing plates 312, and The liquid crystal layer 314 on the thin film transistor array substrate 313, the polarizer 315 with a plurality of wire grid patterns arranged on the liquid crystal layer 314, the quantum dot color filter 316 arranged on the polarizer 315, and the quantum dot color filter The second glass substrate 317 on the light sheet 316.
  • the width of the plurality of wire grid polarizers 312 is less than 60 nanometers, and the distance between the plurality of wire grid polarizers 312 is less than 120 nanometers.
  • the width of the wire grid pattern of the polarizer 315 is less than 60 nanometers, and the distance between the wire grid patterns is less than 120 nanometers.
  • the material of the plurality of wire grid polarizers 312 includes one of aluminum, iron, copper, chromium, silver, and gold.
  • the backlight module 100 includes a light guide plate 101, a plurality of dot structures 103, and a light source 104.
  • the light guide plate 101 includes a plate body, and the material of the plate body includes alkali-free glass.
  • the board body includes a first surface, a second surface, and a first side surface.
  • the first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • the thickness of the plate body is between 0.4-1 mm, and the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • a plurality of dot structures 103 are arranged on the second surface of the board, wherein the shape of the plurality of dot structures 103 includes one of a circle, a square, a hexagon, an ellipse and a polygon, and the width of the plurality of dot structures 103 is between It is between 0.1-1 mm, and the distance between the multiple dot structures 103 is between 0.1-10 mm.
  • the light source 104 is arranged on the first side surface of the board.
  • the light source 104 is a light emitting diode.
  • the liquid crystal display device 400 includes a backlight module 100 and a display panel 410 provided on the backlight module 100.
  • the display panel 410 includes a first glass substrate 411, a first polarizer 412 having a plurality of wire grid patterns disposed on the first glass substrate 411, and a thin film transistor array substrate 413 disposed on the first polarizer 412 ,
  • the liquid crystal layer 414 disposed on the thin film transistor array substrate 413, the color filter 415 disposed on the liquid crystal layer 414, the second polarizer 416 with multiple wire grid patterns disposed on the color filter 415, and the second polarizer 416 disposed on the color filter 415.
  • the width of the plurality of wire grid patterns of the first polarizer 412 is less than 60 nanometers, and the distance between the plurality of wire grid patterns is less than 120 nanometers.
  • the width of the wire grid patterns of the second polarizer 416 is less than 60 nanometers, and the distance between the wire grid patterns is less than 120 nanometers.
  • the material of the wire grid pattern of the first polarizer 412 and the second polarizer 416 includes one of aluminum, iron, copper, chromium, silver, and gold.
  • the backlight module 100 includes a light guide plate 101, a plurality of dot structures 103, and a light source 104.
  • the light guide plate 101 includes a plate body, and the material of the plate body includes alkali-free glass.
  • the board body includes a first surface, a second surface, and a first side surface. The first surface and the second surface are opposite to each other, and the first side surface connects the first surface and the second surface.
  • the thickness of the plate body is between 0.4-1 mm, and the shape of the plate body includes one of a flat plate shape, a wedge shape, a T shape, and a combination thereof.
  • a plurality of dot structures 103 are arranged on the second surface of the board, wherein the shape of the plurality of dot structures 103 includes one of a circle, a square, a hexagon, an ellipse and a polygon, and the width of the plurality of dot structures 103 is between It is between 0.1-1 mm, and the distance between the multiple dot structures 103 is between 0.1-10 mm.
  • the light source 104 is arranged on the first side surface of the board.
  • the light source 104 is a light emitting diode.

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

Abstract

一种背光模块及显示设备。背光模块（100）包括导光板（101）、多个纳米结构（102）多个网点结构（103）及光源（104）。导光板（101）包括板体，板体的材料包括玻璃。板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对。多个纳米结构（102）设置在板体的第一表面上以及多个网点结构（103）设置在板体的第二表面上。光源（104）设置在板体的第一侧表面。背光模块（100）中的具有多个纳米结构（102）及多个网点结构（103）的导光板（101）可以使显示设备的厚度变薄，并增加光线穿透性以提高屏幕亮度。

Description

背光模块及显示设备 技术领域
本发明是有关于一种显示技术领域，特别是有关于一种背光模块及显示设备。
 背景技术
液晶显示设备具有背光模块，在背光模块装的导光板主要是将光线由边缘导向用户的视线方向。一般导光板的主要材质为塑料材质，例如压克力或聚碳酸酯，且导光板内网点结构主要是破坏光单一方向的全反射，改变光线的行进路线，让光线可以传递更远达到面光源效果。
 技术问题
为了使液晶显示能够轻薄化，因此需要进一步改良导光板的材质与结构。
 技术解决方案
一种背光模块包括导光板、多个纳米结构、多个网点结构及光源。导光板包括板体，板体的材料包括玻璃。板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。多个纳米结构设置在板体的第一表面上以及多个网点结构设置在板体的第二表面上。光源设置在板体的第一侧表面。
在本发明的一实施例中，板体的厚度介于0.4-1毫米之间。
在本发明的一实施例中，板体的形状包括平板形、楔形、T形及其组合的其中之一。
在本发明的一实施例中，多个纳米结构的宽度小于60纳米，多个纳米结构之间的距离小于120纳米。
在本发明的一实施例中，多个纳米结构的材料包括铝、铁、铜、铬、银及金的其中之一。
在本发明的一实施例中，多个网点结构的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一。
在本发明的一实施例中，多个网点结构的宽度介于0.1-1毫米之间，多个网点结构之间的距离介于0.1-10毫米之间。
一种显示设备包括背光模块及设置在背光模块上的显示面板。背光模块包括导光板、多个纳米结构、多个网点结构及光源。导光板包括板体，板体的材料包括玻璃。板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。多个纳米结构设置在板体的第一表面上以及多个网点结构设置在板体的第二表面上。光源设置在板体的第一侧表面。
在本发明的一实施例中，多个纳米结构的宽度小于60纳米，多个纳米结构之间的距离小于120纳米。
在本发明的一实施例中，多个网点结构的宽度介于0.1-1毫米之间，多个网点结构之间的距离介于0.1-10毫米之间。
一种显示设备包括显示面板及背光模块。显示面板设置在背光模块上。显示面板包括第一基板、第一偏振片、薄膜晶体管数组基板、液晶层、彩色滤光片、第二偏振片及第二基板。第一偏振片和第二偏振片包括多个纳米结构。背光模块包括导光板、多个网点结构及光源。导光板包括板体，板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面，且板体的材料包括玻璃。多个网点结构设置在板体的第二表面上。光源设置在板体的第一侧表面。
在本发明的一实施例中，多个纳米结构是多个线栅图案。
在本发明的一实施例中，多个线栅图案的宽度小于60纳米。
在本发明的一实施例中，多个线栅图案彼此之间的距离小于120纳米。
在本发明的一实施例中，板体的形状包括平板形、楔形、T形及其组合的其中之一。
在本发明的一实施例中，多个纳米结构的材料包括铝、铁、铜、铬、银及金的其中之一。
在本发明的一实施例中，多个网点结构的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一。
在本发明的一实施例中，多个网点结构的宽度介于0.1-1毫米之间，多个网点结构之间的距离介于0.1-10毫米之间。
 有益效果
与现有技术相比较，在本发明的背光模块中的具有多个纳米结构及多个网点结构的导光板可以使显示设备的厚度变薄，并增加光线穿透性以提高屏幕亮度。
 附图说明
图1是本发明实施例的背光模块示意图；
图2是本发明实施例的量子点显示设备示意图；
图3是本发明另一实施例的量子点显示设备示意图；以及
图4是本发明另一实施例的液晶显示设备示意图。
 本发明的实施方式
根据图1，本发明实施例提供一种背光模块100包括导光板101、多个纳米结构102、多个网点结构103及光源104。导光板101包括板体，板体的材料包括无碱玻璃。具体而言，板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。板体的厚度介于0.4-1毫米之间，以及板体的形状包括平板形、楔形、T形及其组合的其中之一。多个纳米结构102设置在板体的第一表面上，其中多个纳米结构102的宽度小于60纳米，以及多个纳米结构102彼此之间的距离小于120纳米。优选地，多个纳米结构102的材料包括铝、铁、铜、铬、银及金的其中之一。更优选地，多个纳米结构102是线栅偏振片(wire grid polarizer)。多个网点结构103设置在板体的第二表面上。具体而言，多个网点结构103的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一，且多个网点结构103的宽度介于0.1-1毫米之间，多个网点结构103彼此之间的距离介于0.1-10毫米之间。光源104设置在板体的第一侧表面。由于背光模块中的具有多个纳米结构及多个网点结构的导光板，因此可以使显示设备的厚度变薄，并增加光线穿透性以提高屏幕亮度。
根据图2，本发明另一实施例提供一种量子点显示设备200。量子点显示设备200包括背光模块100以及设置在背光模块100上的显示面板210。具体而言，显示面板210包括第一玻璃基板211、设置在第一玻璃基板211上的薄膜晶体管阵列基板212、设置在薄膜晶体管阵列基板212上的液晶层213、设置在液晶层213上的偏振片214、设置在偏振片214上的量子点彩色滤光片215以及设置在量子点彩色滤光片215上的第二玻璃基板216。另外，背光模块100包括导光板101、多个纳米结构102、多个网点结构103及光源104，导光板101包括板体，板体的材料包括无碱玻璃。进一步而言，板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。板体的厚度介于0.4-1毫米之间，以及板体的形状包括平板形、楔形、T形及其组合的其中之一。多个纳米结构102设置在板体的第一表面上，其中多个纳米结构102的宽度小于60纳米，以及多个纳米结构102彼此之间的距离小于120纳米。优选地，多个纳米结构102的材料包括铝、铁、铜、铬、银及金的其中之一。更优选地，多个纳米结构102是线栅偏振片。多个网点结构103设置在板体的第二表面上，其中多个网点结构103的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一，且多个网点结构103的宽度介于0.1-1毫米之间，以及多个网点结构103彼此之间的距离介于0.1-10毫米之间。光源104设置在板体的第一侧表面。优选地，光源104是发光二极管。
根据图3，本发明另一实施例提供一种量子点显示设备300。量子点显示设备300包括背光模块100以及设置在背光模块100上的显示面板310。具体而言，显示面板310包括第一玻璃基板311、设置在第一玻璃基板311上的多个线栅偏振片312、设置在多个线栅偏振片312上的薄膜晶体管阵列基板313、设置在薄膜晶体管阵列基板313上的液晶层314、设置在液晶层314上的具有多个线栅图案的偏振片315、设置在偏振片315上的量子点彩色滤光片316以及设置在量子点彩色滤光片316上的第二玻璃基板317。进一步而言，多个线栅偏振片312的宽度小于60纳米，以及多个线栅偏振片312彼此之间的距离小于120纳米。同样地，偏振片315的线栅图案的宽度小于60纳米，且线栅图案彼此之间的距离小于120纳米。优选地，多个线栅偏振片312的材料包括铝、铁、铜、铬、银及金的其中之一。另外，背光模块100包括导光板101、多个网点结构103及光源104，导光板101包括板体，板体的材料包括无碱玻璃。板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。板体的厚度介于0.4-1毫米之间，以及板体的形状包括平板形、楔形、T形及其组合的其中之一。多个网点结构103设置在板体的第二表面上，其中多个网点结构103的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一，且多个网点结构103的宽度介于0.1-1毫米之间，以及多个网点结构103彼此之间的距离介于0.1-10毫米之间。光源104设置在板体的第一侧表面。优选地，光源104是发光二极管。
根据图4，本发明另一实施例提供一种液晶显示设备400。液晶显示设备400包括背光模块100以及设置在背光模块100上的显示面板410。具体而言，显示面板410包括第一玻璃基板411、设置在第一玻璃基板411上的具有多个线栅图案的第一偏振片412、设置在第一偏振片412上的薄膜晶体管阵列基板413、设置在薄膜晶体管阵列基板413上的液晶层414、设置液晶层414上的彩色滤光片415、设置在彩色滤光片415上的具有多个线栅图案的第二偏振片416以及设置在第二偏振片416上的第二玻璃基板417。进一步而言，第一偏振片412的多个线栅图案的宽度小于60纳米，以及多个线栅图案彼此之间的距离小于120纳米。同样地，第二偏振片416的线栅图案的宽度小于60纳米，且线栅图案彼此之间的距离小于120纳米。优选地，第一偏振片412和第二偏振片416的线栅图案的材料包括铝、铁、铜、铬、银及金的其中之一。另外，背光模块100包括导光板101、多个网点结构103及光源104，导光板101包括板体，板体的材料包括无碱玻璃。板体包括第一表面、第二表面及第一侧表面，第一表面与第二表面彼此相对，第一侧表面连接第一表面和第二表面。板体的厚度介于0.4-1毫米之间，以及板体的形状包括平板形、楔形、T形及其组合的其中之一。多个网点结构103设置在板体的第二表面上，其中多个网点结构103的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一，且多个网点结构103的宽度介于0.1-1毫米之间，以及多个网点结构103彼此之间的距离介于0.1-10毫米之间。光源104设置在板体的第一侧表面。优选地，光源104是发光二极管。
虽然本发明结合其具体实施例而被描述，应该理解的是，许多替代、修改及变化对于那些本领域的技术人员将是显而易见的。因此，其意在包含落入所附权利要求书的范围内的所有替代、修改及变化。

Claims (18)

  1. 一种背光模块，包括：
    导光板，所述导光板包括板体，所述板体包括第一表面、第二表面及第一侧表面，所述第一表面与所述第二表面彼此相对，所述第一侧表面连接所述第一表面和所述第二表面，其中所述板体的材料包括玻璃；
    多个纳米结构，所述多个纳米结构设置在所述板体的所述第一表面上；
    多个网点结构，所述多个网点结构设置在所述板体的所述第二表面上；以及
    光源，所述光源设置在所述板体的所述第一侧表面。
  2. 如权利要求1所述的背光模块，其中，所述板体的厚度介于0.4-1毫米之间。
  3. 如权利要求1所述的背光模块，其中，所述板体的形状包括平板形、楔形、T形及其组合的其中之一。
  4. 如权利要求1所述的背光模块，其中，所述多个纳米结构的宽度小于60纳米，所述多个纳米结构之间的距离小于120纳米。
  5. 如权利要求1所述的背光模块，其中，所述多个纳米结构的材料包括铝、铁、铜、铬、银及金的其中之一。
  6. 如权利要求1所述的背光模块，其中，所述多个网点结构的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一。
  7. 如权利要求1所述的背光模块，其中，所述多个网点结构的宽度介于0.1-1毫米之间，所述多个网点结构之间的距离介于0.1-10毫米之间。
  8. 一种显示设备，包括：
    显示面板；以及
    背光模块，所述显示面板设置在所述背光模块上；
    其中所述背光模块包括：
    导光板，所述导光板包括板体，所述板体包括第一表面、第二表面及第一侧表面，所述第一表面与所述第二表面彼此相对，所述第一侧表面连接所述第一表面和所述第二表面，其中所述板体的材料包括玻璃；
    多个纳米结构，所述多个纳米结构设置在所述板体的所述第一表面上；
    多个网点结构，所述多个网点结构设置在所述板体的所述第二表面上；以及
    光源，所述光源设置在所述板体的所述第一侧表面。
  9. 如权利要求8所述的显示设备，其中，所述多个纳米结构的宽度小于60纳米，所述多个纳米结构之间的距离小于120纳米。
  10. 如权利要求8所述的显示设备，其中，所述多个网点结构的宽度介于0.1-1毫米之间，所述多个网点结构之间的距离介于0.1-10毫米之间。
  11. 一种显示设备，包括：
    显示面板；以及
    背光模块，所述显示面板设置在所述背光模块上；
    其中所述显示面板包括：
    第一基板、第一偏振片、薄膜晶体管数组基板、液晶层、彩色滤光片、第二偏振片及第二基板，所述第一偏振片和所述第二偏振片包括多个纳米结构；以及
    其中所述背光模块包括：
    导光板，所述导光板包括板体，所述板体包括第一表面、第二表面及第一侧表面，所述第一表面与所述第二表面彼此相对，所述第一侧表面连接所述第一表面和所述第二表面，其中所述板体的材料包括玻璃；
    多个网点结构，所述多个网点结构设置在所述板体的所述第二表面上；以及
    光源，所述光源设置在所述板体的所述第一侧表面。
  12. 如权利要求11所述的显示设备，其中，所述多个纳米结构是多个线栅图案。
  13. 如权利要求12所述的显示设备，其中，所述多个线栅图案的宽度小于60纳米。
  14. 如权利要求13所述的显示设备，其中，所述多个线栅图案彼此之间的距离小于120纳米。
  15. 如权利要求11所述的显示设备，其中，所述板体的形状包括平板形、楔形、T形及其组合的其中之一。
  16. 如权利要求11所述的显示设备，其中，所述多个纳米结构的材料包括铝、铁、铜、铬、银及金的其中之一。
  17. 如权利要求11所述的显示设备，其中，所述多个网点结构的形状包括圆形、方形、六角形、椭圆形及多边形的其中之一。
  18. 如权利要求11所述的显示设备，其中，所述多个网点结构的宽度介于0.1-1毫米之间，所述多个网点结构之间的距离介于0.1-10毫米之间。
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CN110133789A (zh) * 2019-06-28 2019-08-16 京东方科技集团股份有限公司 偏振片、显示装置

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