WO2016049948A1 - 一种显示装置 - Google Patents

一种显示装置 Download PDF

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Publication number
WO2016049948A1
WO2016049948A1 PCT/CN2014/088616 CN2014088616W WO2016049948A1 WO 2016049948 A1 WO2016049948 A1 WO 2016049948A1 CN 2014088616 W CN2014088616 W CN 2014088616W WO 2016049948 A1 WO2016049948 A1 WO 2016049948A1
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Prior art keywords
display device
layer
display module
module
display
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PCT/CN2014/088616
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English (en)
French (fr)
Inventor
唐国富
萧宇均
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深圳市华星光电技术有限公司
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Priority to US14/426,145 priority Critical patent/US20160259105A1/en
Publication of WO2016049948A1 publication Critical patent/WO2016049948A1/zh

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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
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • 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
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • 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
    • G02F1/133553—Reflecting elements
    • 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
    • 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
    • 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
    • H10K50/868—Arrangements for polarized light emission
    • 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
    • H10K59/80—Constructional details
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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
    • G02F1/133553—Reflecting elements
    • G02F1/133555—Transflectors
    • G02F1/133557—Half-mirrors
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a display device.
  • the implementation method is generally to affix a translucent and semi-reflective glass layer 3 on the upper side of the display screen 1, and fix the glass layer 3 on the upper surface of the display screen 1 by using the display front frame 2. This method suffers from loss of penetration and increased screen thickness and weight.
  • FIG. 1b There is also a method on the market, as shown in FIG. 1b, specifically adding a layer of PDLC (Polymer Dispersed Liquid Crystal) 4 in the structure of the display screen 1 of the OLED (Organic Light Emitting Diode) structure to realize mirror and non-mirror display.
  • PDLC Polymer Dispersed Liquid Crystal
  • OLED Organic Light Emitting Diode
  • the technical problem to be solved by the present invention is to provide a display device that does not significantly increase the thickness, weight, and cost of the display screen, and is compatible with the display device of the liquid crystal display module and the OLED display module.
  • a display device comprising:
  • a backlight module for providing backlight brightness of the display device
  • Display module for displaying a picture
  • a first polarizer is disposed between the backlight module and the display module, and is disposed on a lower surface of the display module for converting light emitted by the backlight module into linear polarized light;
  • a mirror polarizer having a polarization function comprising a first thermosensitive adhesive layer, the mirror polarizer passing through The first thermal adhesive layer is adhered to the outer surface of the display module for transmitting light emitted by the backlight module while reflecting natural light.
  • the mirror polarizer further includes a first dichroic layer, a first brightening layer, a second dichroic layer, and a second brightening layer, which are sequentially located at the front end of the first thermal adhesive layer.
  • the dichroic layer and the second dichroic layer absorb polarization, and the first brightness enhancement layer and the second brightness enhancement layer reflect light.
  • the specular polarizer further comprises a scratch-resistant layer at the front end of the second brightness-increasing layer.
  • the scratch resistant layer is a cellulose triacetate material.
  • the display device further includes a second polarizer having a polarization function, and the second polarizer is located between the display module and the mirror polarizer.
  • the display module includes a TFT glass substrate, a liquid crystal layer, and a CF glass substrate.
  • the display module is an OLED display module.
  • the display device of the present invention does not significantly increase the thickness, weight and cost of the display screen by providing a first polarizer having a polarization function at the front end of the display device, and is compatible with both the liquid crystal display module and the OLED display module.
  • FIG. 1a is a schematic structural view of a prior art display device.
  • FIG. 1b is a schematic structural view of another prior art display device.
  • FIG. 2 is a schematic structural view of a display device according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic structural view of a mirror-side polarizer of a display device according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic view showing an optical path of a display device according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of a display device according to Embodiment 2 of the present invention.
  • the display device of the first embodiment of the present invention includes a backlight module 100 , a display module 200 , a first polarizer 300 , and a mirror polarizer 500 .
  • the backlight module 100 is configured to provide a display.
  • the backlight module is used to display the screen;
  • the first polarizer 300 is disposed between the backlight module 100 and the display module 200, and is disposed on the lower surface of the display module 200 for emitting the backlight module 100.
  • the light is converted into a linearly polarized light;
  • the mirror polarizer 500 has a polarization function and is disposed on the upper surface side of the display module 200 for transmitting light emitted by the backlight module 100 while reflecting natural light.
  • the display device When the mirror polarizer 500 is disposed at the front end of the display device, when the brightness of the backlight of the backlight module 100 is greater than the natural light of the environment, the display device displays the display screen of the display module 200; when the ambient light source intensity is greater than that of the backlight module 100 The mirror side effect is exhibited when the backlight side is strong.
  • the display device of the invention does not significantly increase the thickness and weight of the display screen, and has a relatively low implementation cost, and is compatible with the liquid crystal display module and the OLED display module at the same time, and has high technical versatility.
  • the mirror polarizer 500 includes at least a first thermal adhesive layer 510 and a functional layer 501.
  • the functional layer 501 of the mirror polarizer 500 is pasted on the upper surface of the display module 200 through the first thermal adhesive layer 510.
  • the functional layer 501 includes a first dichroic layer 530, a first brightening layer 540, a second dichroic layer 550, and a second brightness enhancing layer 560, which are sequentially located at the front end of the first thermosensitive adhesive layer 510, wherein the first two The polarization is absorbed by the color layer 530 and the second dichroic layer 550, and the first brightness enhancement layer 540 and the second brightness enhancement layer 560 reflect the light.
  • the first polarizer 300 is pasted on the lower surface of the display module 200 through the second thermal adhesive layer 310.
  • the first thermosensitive adhesive layer 510 and the second thermal adhesive layer 310 are both PSA (pressure-sensitive adhesive).
  • the first dichroic layer 530 and the second dichroic layer 550 in this embodiment are black for absorbing excessive light vibration, and are only perpendicular to the first dichroic layer 530 and the second dichroic layer 550.
  • the light is vibrated; the first brightness enhancing layer 540 and the second brightness enhancing layer 560 are in a specular structure for reflecting light.
  • 4 is a schematic diagram of an optical path of the display device of the present embodiment.
  • the light provided on the backlight side forms an image on the display module 200 after passing through the backlight module 100 and the first polarizer 300.
  • the display device When the backlight of the backlight module 100 is greater than the ambient light, the light emitted from the display module 200 passes through the mirror polarizer 500 to enter the viewer's line of sight, and the display device displays the display screen of the display module 200; When the screen is in the dark state or in the off state, the ambient light intensity is greater than the backlight side intensity on the backlight module 100 side, and the ambient light is reflected back by the mirror polarizer 500, and the display device exhibits a mirror effect.
  • the mirror polarizer 500 further includes a scratch-resistant layer 520 covering the front end of the functional layer 501.
  • the scratch-resistant layer 520 is a high hardness TAC (triacetate) material.
  • the display module 200 includes a TFT (Thin Film Transistor) glass substrate 210, a liquid crystal layer 220, and a CF (Color Filter) glass substrate 230.
  • TFT Thin Film Transistor
  • the mirror polarizer 500 is adhered to the outer surface of the CF glass substrate 230 through the first thermal adhesive layer 510, and the first polarizer 300 passes through the second thermal adhesive layer 310. Paste on the outer surface of the TFT glass substrate 210.
  • the display device of the present embodiment also includes a backlight module 100, a display module 200, a first polarizer 300, and a mirror polarizer 500.
  • the difference from the first embodiment is that the display device of the embodiment further includes a polarization function.
  • the second polarizer 400 is disposed between the display module 200 and the mirror polarizer 500.
  • the third thermal adhesive layer 410 is adhered to the outer surface of the display module 200.
  • the mirror polarizer 500 is adhered to the second polarizer 400 through the first thermal adhesive layer 510 to form a dual polarization structure.
  • the display module 200 of the present invention can also be an OLED display module.
  • the display device of the present invention does not significantly increase the thickness or weight of the display screen, and the cost is relatively low, and can be compatible with both the liquid crystal display module and the OLED display module.

Abstract

一种显示装置，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。该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。其中第一偏光片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 (11)

  1. 一种显示装置，其中，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。
  2. 根据权利要求1所述的显示装置，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。
  3. 根据权利要求2所述的显示装置，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。
  4. 根据权利要求3所述的显示装置，其中，所述耐刮层为三醋酸纤维素材料。
  5. 根据权利要求1所述的显示装置，其中，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。
  6. 根据权利要求1所述的显示装置，其中，所述显示模组包括TFT玻璃基板、液晶层和CF玻璃基板。
  7. 根据权利要求2所述的显示装置，其中，所述显示模组包括TFT玻璃基板、液晶层和CF玻璃基板。
  8. 根据权利要求3所述的显示装置，其中，所述显示模组包括TFT玻璃基板、液晶层和CF玻璃基板。
  9. 根据权利要求1所述的显示装置，其中，所述显示模组为OLED显示模组。
  10. 根据权利要求2所述的显示装置，其中，所述显示模组为OLED显示模组。
  11. 根据权利要求3所述的显示装置，其中，所述显示模组为OLED显示模组。
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