CN111638613A - 显示装置 - Google Patents

显示装置 Download PDF

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Publication number
CN111638613A
CN111638613A CN201910155060.3A CN201910155060A CN111638613A CN 111638613 A CN111638613 A CN 111638613A CN 201910155060 A CN201910155060 A CN 201910155060A CN 111638613 A CN111638613 A CN 111638613A
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China
Prior art keywords
light
display device
adjusting element
backlight module
blue light
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Pending
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CN201910155060.3A
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English (en)
Inventor
黄礼锹
黄建铭
周冠葳
赖郁玟
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Hongfujin Precision Industry Shenzhen Co Ltd
Hon Hai Precision Industry Co Ltd
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Application filed by Hongfujin Precision Industry Shenzhen Co Ltd, Hon Hai Precision Industry Co Ltd filed Critical Hongfujin Precision Industry Shenzhen Co Ltd
Priority to CN201910155060.3A priority Critical patent/CN111638613A/zh
Priority to US16/672,828 priority patent/US11036076B2/en
Publication of CN111638613A publication Critical patent/CN111638613A/zh
Pending legal-status Critical Current

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    • 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
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • 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
    • 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
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    • 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
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    • 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
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    • G—PHYSICS
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    • 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
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
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    • H01—ELECTRIC ELEMENTS
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    • H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/50—Wavelength conversion elements
    • H01L33/507—Wavelength conversion elements the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
    • 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
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
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    • 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
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    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
    • 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
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133567—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the back side
    • 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
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    • 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
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    • H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
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Abstract

一种显示装置包括显示面板与背光模组。该背光模组包括多个白光LED。每一个白光LED包括蓝光芯片以及封装在所述蓝光芯片上的黄色荧光材料。光线调整元件设置在该显示面板上或设置在该背光模组上。该光线调整元件对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％；该光线调整元件还用于减少波长在575nm至595nm之间的黄光的穿透。通过特定白光LED搭配一滤除特定波长蓝光与黄光的光线调整元件，能够有效减少从显示装置中射出的损害眼睛的光线，同时还能够提高显示画面的色彩饱和度。

Description

显示装置
技术领域
本发明涉及一种显示装置，尤其涉及一种具有护眼和高色彩饱和度的显示装置。
背景技术
目前，显示器通常是通过调节红、绿、蓝三种颜色光线的比例来显示彩色画面的。然而，其中的蓝光易穿过眼角膜的晶状体并接触到视网膜，加速视网膜光斑区的细胞氧化，使人体视网膜的光斑区产生病变，损伤视觉细胞，进而对眼睛的健康产生了不良的影响。
发明内容
鉴于此，有必要提供一种显示装置，其可实现护眼和高色彩饱和度。
一种显示装置，包括：
显示面板；
与所述显示面板层叠设置的背光模组，该背光模组包括多个白光LED，每一个白光LED包括蓝光芯片以及封装在所述蓝光芯片上的黄色荧光材料；以及
光线调整元件，其设置在该显示面板上或设置在该背光模组上，该光线调整元件对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％；该光线调整元件还用于减少波长在575nm至595nm之间的黄光的穿透。
一种显示装置，其包括：
显示面板；
与所述显示面板层叠设置的背光模组，该背光模组包括多个白光LED，每一个白光LED包括蓝光芯片以及封装在所述蓝光芯片上的红色荧光材料和绿色荧光材料；以及
光线调整元件，其设置在该显示面板上或设置在该背光模组上，该光线调整元件对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％。
本发明在显示装置中通过特定白光LED搭配一滤除特定波长蓝光与黄光或蓝光的光线调整元件，能够有效减少从显示装置中射出的损害眼睛的光线，从而实现保护眼睛的作用，同时还能够提高显示画面的色彩饱和度。
附图说明
图1是本发明第一实施例的显示装置的俯视示意图。
图2是本发明第二实施例的显示装置的俯视示意图。
图3是本发明第三实施例的显示装置的俯视示意图。
图4是本发明第四实施例的显示装置的俯视示意图。
图5是本发明第五实施例的显示装置的俯视示意图。
图6是本发明第六实施例的显示装置的俯视示意图。
图7是本发明第七实施例的显示装置的俯视示意图。
图8是一实施例的光线调整元件的光线透过率图表。
图9是另一实施例的光线调整元件的光线透过率图表。
主要元件符号说明
Figure BDA0001982640660000031
如下具体实施方式将结合上述附图进一步说明本发明。
具体实施方式
附图中示出了本发明的实施例，本发明可以通过多种不同形式实现，而并不应解释为仅局限于这里所阐述的实施例。相反，提供这些实施例是为了使本发明更为全面和完整的公开，并使本领域的技术人员更充分地了解本发明的范围。为了清晰可见，在图中，层和区域的尺寸被放大了。
蓝色光线(蓝光)的波长通常在400nm至500nm之间。经研究发现，415nm至455nm之间波长的蓝光对眼睛的伤害最严重。因此，本发明旨在通过减少从显示装置中发射出的415nm-455nm之间波长的蓝光，从而防止上述波段的蓝光对眼睛产生不良影响。
图1所示，本发明第一实施方式所提供的显示装置100a包括层叠的显示面板10以及背光模组30。其中，该显示面板10是液晶显示面板，用于通过液晶转动来控制光线的通过量。该背光模组30用于向该显示面板10的方向提供一面光源。
该显示面板10包括依次层叠的透明盖板20、上偏光片11、彩色滤光基板13、液晶层15、薄膜晶体管(TFT)基板17以及下偏光片19，其中下偏光片19靠近该背光模组30。所述彩色滤光基板13与TFT基板17相对设置。所述液晶层15夹设于所述彩色滤光基板13与TFT基板17之间。所述上偏光片11能够使偏振方向沿第一方向的光线穿过，而所述下偏光片19能够使偏振方向沿与所述第一方向垂直的第二方向的光线穿过。
所述背光模组30提供一面光源，其发出的光线依次穿过所述下偏光片19、TFT基板17、液晶层15、彩色滤光基板13、上偏光片11及透明盖板20，通过控制所述液晶层15中液晶分子的旋转带动光线的偏振方向改变，以实现画面显示。
所述背光模组30包括用以发光的多个白光LED31，图1中未示出白光LED31。白光LED31请参图6和图7所示，每一个白光LED31包括蓝光芯片311以及封装在所述蓝光芯片311上的荧光材料313。在一实施例中，所述荧光材料313包括红色荧光材料和绿色荧光材料。上述蓝光芯片发出的蓝光的波峰位于460-475nm。如图1所示，该显示装置100a中设置有一光线调整元件50a，该光线调整元件50a能够减少从所述显示装置100a出光面发出的光线中波长在415nm至455nm之间的蓝光，从而减少所述显示装置100a中对眼睛危害大的蓝光，进而保护观看者的视力。同时，由于此种白光LED发出的光中没有黄光，因此可保证显示装置100a显示的色彩饱和度和亮度。在本实施方式中，该光线调整元件50a对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％，且对波长由450nm至470nm之间的蓝光的穿透率随波长之增加而增加，如图8所示。
在另一实施例中，所述荧光材料313为黄色荧光材料。上述蓝光芯片发出的蓝光的波峰位于460-475nm。所述黄色荧光材料可为铝酸盐荧光材料或硅酸盐荧光材料。此时，白光LED31发出的光中含有黄色光线(黄光)。波长位于575nm～595nm左右的黃光对显示的色彩饱和度有影响，因此需减少从显示装置中发射出的575nm～595nm左右波长的黃光，从而提升显示装置100a显示的色彩饱和度。此种情况下，如图1所示，该显示装置100a中设置有一光线调整元件50b，该光线调整元件50b能够减少从所述显示装置100a出光面发出的光线中波长在415nm至455nm之间的蓝光以及波长在575nm至595nm之间的黄光。在本实施方式中，如图9所示，该光线调整元件50a对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％，且对波长由450nm至470nm之间的蓝光的穿透率随波长之增加而增加。通过该光线调整元件50b，黄光的透光率曲线呈现一个凹峰，凹峰的中心位于575nm至595nm之间，凹峰的宽度为15-30nm，其中黄光的透光率在凹峰的中心达到最小值约为60％。
该光线调整元件50a或该光线调整元件50b可以是设置在该显示面板10中任意膜层上，也可以是设置在该背光模组30上。
该光线调整元件50a为单一滤蓝光的，其可包括折射率不同的两种材料的交替排布的多层膜，所述两种材料可分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅等。
该光线调整元件50b能够滤蓝光和黄光，可包括层叠设置的蓝光滤膜和黄光滤膜的两种膜。蓝光滤膜可包括折射率不同的两种材料的交替排布的多层膜，所述两种材料可分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅中至少一种。黄光滤膜可包括折射率不同的两种材料的交替排布的多层膜，所述两种材料可分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅等。在其他实施例中，该光线调整元件50b为滤蓝光和黄光的复合膜。
如图1所示，本发明第一实施方式中，该光线调整元件50a或50b设置在所述下偏光片19与所述背光模组30之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述下偏光片19靠近所述背光模组30的表面，或是形成在所述背光模组30靠近所述下偏光片19的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述下偏光片19与所述背光模组30之间。
如图2所示，本发明第二实施方式的显示装置100b的示意图。该显示装置100b与第一实施方式的显示装置100a相似，也就是说，对于该显示装置100a的描述基本上都可以用于该显示装置100b，特别是，显示装置100b中的透明盖板20、上偏光片11、彩色滤光基板13、液晶层15、TFT基板17、下偏光片19及背光模组30的结构与显示装置100a中的均相同，此处就不再赘述。然而，该显示装置100b与第一实施方式的显示装置100a的主要区别在于：在第二实施方式中，光线调整元件50a或50b设置在所述下偏光片19与所述TFT基板17之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述下偏光片19靠近所述TFT基板17的表面，或是形成在所述TFT基板17靠近所述下偏光片19的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述下偏光片19与所述TFT基板17之间。
如图3所示，本发明第三实施方式的显示装置100c的示意图。该显示装置100c与第一实施方式的显示装置100a相似，也就是说，对于该显示装置100a的描述基本上都可以用于该显示装置100c，特别是，显示装置100c中的透明盖板20、上偏光片11、彩色滤光基板13、液晶层15、TFT基板17、下偏光片19及背光模组30的结构与显示装置100a中的均相同，此处就不再赘述。然而，该显示装置100c与第一实施方式的显示装置100a的主要区别在于：在第三实施方式中，光线调整元件50a或50b设置在所述上偏光片11与所述彩色滤光基板13之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述彩色滤光基板13靠近所述上偏光片11的表面，或是形成在所述上偏光片11靠近所述彩色滤光基板13的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述上偏光片11与所述彩色滤光基板13之间。
如图4所示，本发明第四实施方式的显示装置100d的示意图。该显示装置100d与第一实施方式的显示装置100a相似，也就是说，对于该显示装置100a的描述基本上都可以用于该显示装置100d，特别是，显示装置100d中的透明盖板20、上偏光片11、彩色滤光基板13、液晶层15、TFT基板17、下偏光片19及背光模组30的结构与显示装置100a中的均相同，此处就不再赘述。然而，该显示装置100d与第一实施方式的显示装置100a的主要区别在于：在第四实施方式中，光线调整元件50a或50b设置在所述上偏光片11与所述透明盖板20之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述透明盖板20靠近所述上偏光片11的表面，或是形成在所述上偏光片11靠近所述透明盖板20的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述上偏光片11与所述透明盖板20之间。
如图5所示，本发明第五实施方式的显示装置100e的示意图。该显示装置100e与第一实施方式的显示装置100a相似，也就是说，对于该显示装置100a的描述基本上都可以用于该显示装置100e，特别是，显示装置100e中的透明盖板20、上偏光片11、彩色滤光基板13、液晶层15、TFT基板17、下偏光片19及背光模组30的结构与显示装置100a中的均相同，此处就不再赘述。然而，该显示装置100e与第一实施方式的显示装置100a的主要区别在于：在第五实施方式中，光线调整元件50a或50b设置在所述透明盖板20远离所述上偏光片11的一侧。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述透明盖板20远离所述上偏光片11的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述透明盖板20远离所述上偏光片11的一侧。
如图6所示，本发明第六实施方式的显示装置100f的示意图。实施方式中，光线调整元件50a或50b设置在所述背光模组30中。所述背光模组30为直下式的，其包括依次层叠的反射片32、扩散膜34、增亮膜36等，还包括多个白光LED31，其中反射片32与所述扩散膜34为间隔设置。所述多个白光LED31贯穿所述反射片32与所述扩散膜34相对且间隔设置。可以理解的，该反射片32上方还可设置与扩散膜34、增亮膜36层叠设置的颜色转换膜(图未示)等本领域常规使用的光学膜片。光线调整元件50a或50b可设置在位于多个白光LED远离反射片32一侧的任意膜层上，例如设置在扩散膜34上或增亮膜36上。本实施例中，光线调整元件50a或50b设置在扩散膜34与增亮膜36之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述增亮膜36靠近所述扩散膜34的表面，或是形成在所述扩散膜34靠近所述增亮膜36的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述扩散膜34与增亮膜36之间。
如图7所示，本发明第七实施方式的显示装置100g的示意图。实施方式中，光线调整元件50a或50b设置在所述背光模组30中。所述背光模组30为侧入式的，其包括依次层叠的反射片32、导光板33、扩散膜34、增亮膜36，还包括多个白光LED31。所述多个白光LED31设置在反射片32与扩散膜34之间，且正对导光板33的侧端。可以理解的，该导光板33上方还可设置与扩散膜34、增亮膜36层叠设置的颜色转换膜(图未示)等本领域常规使用的光学膜片。光线调整元件50a或50b可设置在位于导光板33远离反射片32一侧的任意膜层上，例如设置在扩散膜34上或增亮膜36上。本实施例中，光线调整元件50a或50b设置在扩散膜34与增亮膜36之间。该光线调整元件50a或50b为采用贴附、涂覆或镀膜等方式形成在所述增亮膜36靠近所述扩散膜34的表面，或是形成在所述扩散膜34靠近所述增亮膜36的表面；或者是将调整材料掺杂到一透明的基底材料上形成基底层，直接将该基底层设置在所述扩散膜34与增亮膜36之间。
本发明在显示装置中通过特定白光LED搭配一滤除特定波长蓝光与黄光或蓝光的光线调整元件，能够有效减少从显示装置中射出的损害眼睛的光线，从而实现保护眼睛的作用，同时还能够提高显示画面的色彩饱和度。
以上实施例仅用以说明本发明的技术方案而非限制，图示中出现的上、下、左及右方向仅为了方便理解，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或等同替换，而不脱离本发明技术方案的精神和范围。

Claims (9)

1.一种显示装置，其特征在于，其包括：
显示面板；
与所述显示面板层叠设置的背光模组，该背光模组包括多个白光LED，每一个白光LED包括蓝光芯片以及封装在所述蓝光芯片上的黄色荧光材料；以及
光线调整元件，其设置在该显示面板上或设置在该背光模组上，该光线调整元件对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％；该光线调整元件还用于减少波长在575nm至595nm之间的黄光的穿透。
2.如权利要求1所述的显示装置，其特征在于，该光线调整元件包括层叠设置的蓝光滤膜和黄光滤膜两种膜；蓝光滤膜包括两种不同材料的交替排布的多层膜，两种不同材料分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅中的至少一种；黄光滤膜包括两种不同材料的交替排布的多层膜，所述两种材料分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅中的至少一种。
3.如权利要求1所述的显示装置，其特征在于，该光线调整元件对黄光的透光率曲线呈现一个凹峰，其中透光率曲线的横坐标为波长，纵坐标为透过率，凹峰的中心位于575nm至595nm之间，凹峰的宽度为15-30nm，其中黄光的透光率在凹峰的中心达到最小值为60％。
4.如权利要求1所述的显示装置，其特征在于，该显示面板包括依次层叠的透明盖板、上偏光片、彩色滤光基板、液晶层、TFT基板以及下偏光片，其中下偏光片靠近该背光模组，该光线调整元件设置在所述下偏光片与所述背光模组之间；或所述下偏光片与所述TFT基板之间；或在所述上偏光片与所述彩色滤光基板之间；或在所述上偏光片与所述透明盖板之间；或所述透明盖板远离所述上偏光片的一侧。
5.如权利要求1所述的显示装置，其特征在于，该光线调整元件设置在所述背光模组中。
6.一种显示装置，其特征在于，包括：
显示面板；
与所述显示面板层叠设置的背光模组，该背光模组包括多个白光LED，每一个白光LED包括蓝光芯片以及封装在所述蓝光芯片上的红色荧光材料和绿色荧光材料；以及
光线调整元件，其设置在该显示面板上或设置在该背光模组上，该光线调整元件对波长在450nm以下的蓝光穿透率不超过10％，对波长在470nm以上的蓝光穿透率不低于90％。
7.如权利要求6所述的显示装置，其特征在于，该光线调整元件包括两种不同材料的交替排布的多层膜，所述两种不同材料分别选自氮化镓、氧化钛、氧化铝、铟锡氧化物、氧化硅、氮化硅。
8.如权利要求6所述的显示装置，其特征在于，该显示面板包括依次层叠的透明盖板、上偏光片、彩色滤光基板、液晶层、TFT基板以及下偏光片，其中下偏光片靠近该背光模组，该光线调整元件设置在所述下偏光片与所述背光模组之间；或所述下偏光片与所述TFT基板之间；或在所述上偏光片与所述彩色滤光基板之间；或在所述上偏光片与所述透明盖板之间；或所述透明盖板远离所述上偏光片的一侧。
9.如权利要求6所述的显示装置，其特征在于，该光线调整元件设置在所述背光模组中。
CN201910155060.3A 2019-03-01 2019-03-01 显示装置 Pending CN111638613A (zh)

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