CN106772766A - 一种用于双面屏的背光源 - Google Patents

一种用于双面屏的背光源 Download PDF

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Publication number
CN106772766A
CN106772766A CN201611259010.2A CN201611259010A CN106772766A CN 106772766 A CN106772766 A CN 106772766A CN 201611259010 A CN201611259010 A CN 201611259010A CN 106772766 A CN106772766 A CN 106772766A
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guide plate
light guide
reflectance coating
face
double
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赵圣铭
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Yancheng Sanding Electronic Technology Co Ltd
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Yancheng Sanding Electronic Technology Co Ltd
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    • 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, sheet or layer
    • 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
    • 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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02B6/0055—Reflecting element, sheet or layer
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Abstract

本发明属于背光源技术领域，具体涉及一种用于双面屏的背光源，包括导光板一、导光板二、反射膜一、反射膜二和灯条，反射膜一和反射膜二夹在导光板一和导光板二之间，导光板一和导光板二外侧依次设有扩散膜、下增光膜、上增光膜和黑白胶；导光板一和导光板二的一端为四分之一圆柱面，导光板一的圆柱面和导光板二的圆柱面形成二分之一的圆柱面，灯条位于二分之一的圆柱面形成的空腔内；灯条外设有反射板；灯条设置在导光板形成的空腔内，能够使更多的光线进入导光板，从而实现更大的灯光使用效率，双面背光的设计满足双面屏的需求。

Description

一种用于双面屏的背光源
技术领域
本发明属于背光源技术领域，具体涉及一种用于双面屏的背光源。
背景技术
背光源是提供液晶显示器面板的光源，随着液晶显示技术的不断发展，液晶显示器特别是彩色液晶显示器的应用领域也在不断拓宽，液晶显示器为非发光性的显示装置，须藉助背光源才能达到显示的功能，背光源性能的好坏会直接影响液晶显示器的显像质量。
双面屏是液晶显示的一个发展方向，那么就需要一种更适合双面屏的背光源。
发明内容
本发明的发明目的是，提供一种灯光利用率高的用于双面屏的背光源。
为了实现以上发明目的，本发明提供了一种用于双面屏的背光源，包括导光板一、导光板二、反射膜一、反射膜二和灯条，反射膜一和反射膜二夹在导光板一和导光板二之间，导光板一和导光板二外侧依次设有扩散膜、下增光膜、上增光膜和黑白胶；导光板一和导光板二的一端为四分之一圆柱面，导光板一的圆柱面和导光板二的圆柱面形成二分之一的圆柱面，灯条位于二分之一的圆柱面形成的空腔内；灯条外设有反射板。
作为本发明的一种改进，所述反射板为中空半圆柱体，反射板的内面印刷有栅格形网点。
作为本发明的一种改进，导光板一与反射膜一接触的面上印刷有栅格型网点；导光板二与反射膜二接触的面上印刷有栅格型网点。
本发明公开了一种用于双面屏的背光源，灯条设置在导光板形成的空腔内，能够使更多的光线进入导光板，从而实现更大的灯光使用效率，双面背光的设计满足双面屏的需求。
附图说明
图1为本发明一种用于双面屏的背光源的结构示意图。
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细的说明。
图1所示的一种用于双面屏的背光源，包括导光板一1、导光板二2、反射膜一3、反射膜二4和灯条5，反射膜一3和反射膜二4夹在导光板一1和导光板二2之间，导光板一1和导光板二2外侧依次设有扩散膜7、下增光膜8、上增光膜9和黑白胶10；导光板一1和导光板二2的一端为四分之一圆柱面，导光板一的圆柱面和导光板二的圆柱面形成二分之一的圆柱面，灯条位于二分之一的圆柱面形成的空腔内；灯条5外设有反射板6；灯条5设置在导光板形成的空腔内，能够使更多的光线进入导光板，从而实现更大的灯光使用效率，双面背光的设计满足双面屏的需求。
作为本发明的一种改进，所述反射板6为中空半圆柱体，反射板6的内面印刷有栅格形网点。
作为本发明的一种改进，导光板一1与反射膜一3接触的面上印刷有栅格型网点；导光板二2与反射膜二4接触的面上印刷有栅格型网点。
以上所述仅为本发明的优选实施方式，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (3)

1.一种用于双面屏的背光源，其特征在于：包括导光板一、导光板二、反射膜一、反射膜二和灯条，反射膜一和反射膜二夹在导光板一和导光板二之间，导光板一和导光板二外侧依次设有扩散膜、下增光膜、上增光膜和黑白胶；导光板一和导光板二的一端为四分之一圆柱面，导光板一的圆柱面和导光板二的圆柱面形成二分之一的圆柱面，灯条位于二分之一的圆柱面形成的空腔内；灯条外设有反射板。
2.根据权利要求1所述的一种用于双面屏的背光源，其特征在于：所述反射板为中空半圆柱体，反射板的内面印刷有栅格形网点。
3.根据权利要求1所述的一种用于双面屏的背光源，其特征在于：导光板一与反射膜一接触的面上印刷有栅格型网点；导光板二与反射膜二接触的面上印刷有栅格型网点。
CN201611259010.2A 2016-12-30 2016-12-30 一种用于双面屏的背光源 Pending CN106772766A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110211488A (zh) * 2019-05-09 2019-09-06 安徽赛迈特光电股份有限公司 量子点背光源及具有它的车载显示屏
CN114371527A (zh) * 2021-12-03 2022-04-19 安徽康佳电子有限公司 一种玻璃导光板结构双面屏背光模组

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110211488A (zh) * 2019-05-09 2019-09-06 安徽赛迈特光电股份有限公司 量子点背光源及具有它的车载显示屏
CN110211488B (zh) * 2019-05-09 2021-08-13 安徽赛迈特光电股份有限公司 量子点背光源及具有它的车载显示屏
CN114371527A (zh) * 2021-12-03 2022-04-19 安徽康佳电子有限公司 一种玻璃导光板结构双面屏背光模组

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Application publication date: 20170531