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CN104240608A - 一种显示装置 - Google Patents

一种显示装置 Download PDF

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Publication number
CN104240608A
CN104240608A CN201410515564.9A CN201410515564A CN104240608A CN 104240608 A CN104240608 A CN 104240608A CN 201410515564 A CN201410515564 A CN 201410515564A CN 104240608 A CN104240608 A CN 104240608A
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display device
display
module
layer
display module
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唐国富
萧宇均
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to CN201410515564.9A priority Critical patent/CN104240608A/zh
Priority to PCT/CN2014/088616 priority patent/WO2016049948A1/zh
Priority to US14/426,145 priority patent/US20160259105A1/en
Publication of CN104240608A publication Critical patent/CN104240608A/zh
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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
    • G02F1/133528—Polarisers
    • G02F1/133536—Reflective polarizers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • 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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    • 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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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/856—Arrangements for extracting light from the devices comprising reflective means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/878—Arrangements for extracting light from the devices comprising reflective means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
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    • H10K59/8793—Arrangements for polarized light emission
    • 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
    • G02F1/133302—Rigid substrates, e.g. inorganic substrates
    • 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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    • G02F1/133331—Cover glasses
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    • 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
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    • 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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Abstract

本发明公开了一种显示装置，包括：背光模组，用于提供显示装置的背光亮度；显示模组，用于显示画面；第一偏光片，位于所述背光模组和所述显示模组之间，并设置在所述显示模组下表面，用于将所述背光模组发出的光线转换成直线偏光；具有偏振功能的镜面偏光片，包括第一热敏胶层，所述镜面偏光片通过所述第一热敏胶层粘贴在所述显示模组外表面，用于透射所述背光模组发出的光线同时反射自然光。本发明的显示装置未明显增加显示屏厚度、重量和成本，并且可同时兼容液晶显示模组及OLED显示模组。

Description

一种显示装置
技术领域
本发明涉及显示技术领域,尤其涉及一种显示装置。
背景技术
目前社会上一些高端的场所常常会有各类具有显示功能的仪容镜，兼顾有仪容镜及信息推送展示等功能，既能满足人们梳妆打扮的需求，又能起到广告牌的功能。
如图1a所示，其实现方法通常是在显示屏1的上方粘贴一块半透明半反射的玻璃层3，利用显示屏前框2将玻璃层3固定在显示屏1的上表面。此种方法存在损失穿透率及增加屏幕厚度和重量的问题。
市面上还有一种方法，如图1b所示，具体是在OLED(有机发光二级管)结构的显示屏1的结构中增加一层PDLC(聚合物分散液晶)4来实现镜面与非镜面显示的控制，此种方式成本高昂，实现技术困难，且在液晶显示模组中无法实现。
发明内容
本发明所要解决的技术问题在于提供一种未明显增加显示屏厚度、重量、成本的显示装置，可同时兼容液晶显示模组及OLED显示模组的显示装置。
为了实现上述目的，本发明采用了如下的技术方案：
一种显示装置，包括：
背光模组，用于提供显示装置的背光亮度；
显示模组，用于显示画面；
第一偏光片，位于所述背光模组和所述显示模组之间，并设置在所述显示模组下表面，用于将所述背光模组发出的光线转换成直线偏光；
具有偏振功能的镜面偏光片，包括第一热敏胶层，所述镜面偏光片通过所述第一热敏胶层粘贴在所述显示模组外表面，用于透射所述背光模组发出的光线同时反射自然光。
其中，所述镜面偏光片还包括依次位于所述第一热敏胶层前端的第一二向色层、第一增亮层、第二二向色层、第二增亮层，所述第一二向色层和第二二向色层吸收偏振，所述第一增亮层和所述第二增亮层对光线进行反射。
其中，所述镜面偏光片还包括位于所述第二增亮层前端的耐刮层。
其中，所述耐刮层为三醋酸纤维素材料。
其中，显示装置还包括具有偏振功能的第二偏光片，所述第二偏光片位于所述显示模组和所述镜面偏光片之间。
其中，所述显示模组包括TFT玻璃基板、液晶层和CF玻璃基板。
其中，所述显示模组为OLED显示模组
本发明的显示装置通过在显示装置前端设置具有偏振功能的第一偏光片，未明显增加显示屏厚度、重量和成本，并且可同时兼容液晶显示模组及OLED显示模组。
附图说明
图1a为一种现有技术的显示装置的结构示意图。
图1b为另一种现有技术的显示装置的结构示意图。
图2为本发明实施例1的显示装置的结构示意图。
图3为本发明实施例1的显示装置的镜面偏光片的结构示意图。
图4为本发明实施例1的显示装置的光路示意图。
图5为本发明实施例2的显示装置的结构示意图。
具体实施方式
为了便于理解本发明，下面将结合附图用实施例对本发明做进一步说明。
实施例1
请参阅图2和图3，本发明实施例1的显示装置包括背光模组100、显示模组200、第一偏光片300和镜面偏光片500，其中，背光模组100用于提供显示装置的背光亮度；显示模组200用于显示画面；第一偏光片300位于背光模组100和显示模组200之间，并设置在显示模组200下表面，用于将背光模组100发出的光线转换成直线偏光；镜面偏光片500具有偏振功能，设置在显示模组200上表面一侧，用于透射背光模组100发出的光线同时反射自然光。
通过在显示装置的前端设置镜面偏光片500，当背光模组100侧背光源亮度大于环境的自然光的时候，显示装置呈现显示模组200的显示画面；当环境光源强度大于背光模组100侧的背光侧强度的时候呈现镜面效果。本发明的显示装置未明显增加显示屏厚度、重量，且实现成本相对较低，可同时兼容液晶显示模组及OLED显示模组，技术通用性强。
具体地，镜面偏光片500至少包括第一热敏胶层510和功能层501，镜面偏光片500的功能层501通过第一热敏胶层510粘贴在显示模组200上表面。功能层501包括依次位于第一热敏胶层510前端的第一二向色层530、第一增亮层540、第二二向色层550、第二增亮层560，其中，第一二向色层530和第二二向色层550吸收偏振，第一增亮层540和第二增亮层560对光线进行反射。优选第一偏光片300通过第二热敏胶层310粘贴于显示模组200下表面。这里，第一热敏胶层510、第二热敏胶层310均为PSA(感压性黏着剂)。
本实施例中的第一二向色层530和第二二向色层550呈黑色，用于吸收多余的光振动，只让垂直于第一二向色层530、第二二向色层550的光振动通过；第一增亮层540和第二增亮层560呈镜面结构，用于对光线进行反射。如图4，为本实施例的显示装置的光路示意图，背光侧提供的光线经背光模组100和第一偏光片300后在显示模组200上形成图像。当背光模组100侧背光源亮度大于环境光的时候，显示模组200上发出的光线穿过镜面偏光片500进入观看者的视线范围，显示装置呈现显示模组200的显示画面；当液晶屏处于暗态画面或者关闭状态的时候，环境光强度大于背光模组100侧的背光侧强度，环境光被镜面偏光片500反射回来，显示装置呈现镜面效果。
为了防止显示装置由于长时间使用而被频繁触摸刮花，镜面偏光片500还包括覆盖于功能层501前端的耐刮层520。本实施例中，耐刮层520优选为高硬度的TAC(三醋酸纤维素)材料。
本实施例中，显示模组200包括TFT(薄膜晶体管)玻璃基板210、液晶层220和CF(彩色滤光片)玻璃基板230。具体地，镜面偏光片500通过第一热敏胶层510粘贴于CF玻璃基板230外表面，第一偏光片300通过第二热敏胶层310粘贴于TFT玻璃基板210外表面。
实施例2
本实施例的显示装置也包括背光模组100、显示模组200、第一偏光片300和镜面偏光片500，与实施例1不同的是，本实施例的显示装置还包括具有偏振功能的第二偏光片400，第二偏光片400位于显示模组200和镜面偏光片500之间。具体是通过第三热敏胶层410粘贴于显示模组200的外表面，镜面偏光片500通过第一热敏胶层510粘贴于第二偏光片400上，形成双重偏振结构。
可以理解的是，本发明的显示模组200也可以是OLED显示模组。与现有技术相比，本发明的显示装置并未明显增加显示屏厚度或重量，成本相对较低，并且可同时兼容液晶显示模组及OLED显示模组。
以上仅是本申请的几种实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (7)

1.一种显示装置，其特征在于，包括：
背光模组(100)，用于提供显示装置的背光亮度；
显示模组(200)，用于显示画面；
第一偏光片(300)，位于所述背光模组(100)和所述显示模组(200)之间，并设置在所述显示模组(200)下表面，用于将所述背光模组(100)发出的光线转换成直线偏光；
具有偏振功能的镜面偏光片(500)，包括第一热敏胶层(510)，所述镜面偏光片(500)通过所述第一热敏胶层(510)粘贴在所述显示模组(200)外表面，用于透射所述背光模组(100)发出的光线同时反射自然光。
2.根据权利要求1所述的显示装置，其特征在于，所述镜面偏光片(500)还包括依次位于所述第一热敏胶层(510)前端的第一二向色层(530)、第一增亮层(540)、第二二向色层(550)、第二增亮层(560)，所述第一二向色层(530)和第二二向色层(550)吸收偏振，所述第一增亮层(540)和所述第二增亮层(560)对光线进行反射。
3.根据权利要求2所述的显示装置，其特征在于，所述镜面偏光片(500)还包括位于所述第二增亮层(560)前端的耐刮层(520)。
4.根据权利要求3所述的显示装置，其特征在于，所述耐刮层(520)为三醋酸纤维素材料。
5.根据权利要求1所述的显示装置，其特征在于，还包括具有偏振功能的第二偏光片(400)，所述第二偏光片(400)位于所述显示模组(200)和所述镜面偏光片(500)之间。
6.根据权利要求1-5任一所述的显示装置，其特征在于，所述显示模组(200)包括TFT玻璃基板(210)、液晶层(220)和CF玻璃基板(230)。
7.根据权利要求1-5任一所述的显示装置，其特征在于，所述显示模组(200)为OLED显示模组。
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