WO2017096655A1 - 量子点偏光片 - Google Patents

量子点偏光片 Download PDF

Info

Publication number
WO2017096655A1
WO2017096655A1 PCT/CN2015/099281 CN2015099281W WO2017096655A1 WO 2017096655 A1 WO2017096655 A1 WO 2017096655A1 CN 2015099281 W CN2015099281 W CN 2015099281W WO 2017096655 A1 WO2017096655 A1 WO 2017096655A1
Authority
WO
WIPO (PCT)
Prior art keywords
quantum dot
polarizer
film
quantum
polarizing
Prior art date
Application number
PCT/CN2015/099281
Other languages
English (en)
French (fr)
Inventor
白柏
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/908,129 priority Critical patent/US20180031747A1/en
Publication of WO2017096655A1 publication Critical patent/WO2017096655A1/zh

Links

Images

Classifications

    • 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
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y20/00—Nanooptics, e.g. quantum optics or photonic crystals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
    • 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
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a quantum dot polarizer.
  • Quantum Dots are semiconductor nanocrystals with a radius less than or close to the Bohr radius, and most of the three-dimensional size nanomaterials composed of II-VI or III-V elements. Due to the quantum confinement effect, the transport of electrons and holes inside is limited, so that the continuous band structure becomes a separate energy level structure. When the size of quantum dots is different, the quantum confinement of electrons and holes is different, and the discrete energy levels are different. After being excited by external energy, quantum dots of different sizes emit light of different wavelengths, that is, light of various colors.
  • the advantage of the quantum dot is that by adjusting the size of the quantum dot, the wavelength range of the light can be covered to the infrared and the entire visible light band, and the emitted light band is narrow, the color saturation is high; the quantum dot material has high quantum conversion efficiency; the material property is stable; The method is simple and diverse, can be prepared from a solution, and is rich in resources.
  • the operating principle of the LCD (Liquid Crystal Display) display device is to use the optical rotation and birefringence of the liquid crystal to control the rotation of the liquid crystal by the voltage, so that the linearly polarized light passing through the lower polarizer rotates accordingly, from the upper polarizer (and The polarization direction of the lower polarizer is emitted vertically, so that the upper and lower polarizers plus the liquid crystal cell function as optical switches.
  • this kind of optical switch can not completely play the light emitted by the quantum dot.
  • the divergent light passing through the quantum dot passes through the liquid crystal, it can no longer control all the light of the corresponding pixel, and the LCD will occur. Light leakage.
  • a common polarizer is a combination of a plurality of layers.
  • the following polarizer is exemplified, and generally includes the following layers, from bottom to top: a surface protective film 110, a first protective layer 120, The polarizing layer 130, the second protective layer 140, the adhesive layer 150, and the peeling protective film 160.
  • the peeling protective film 160 is peeled off to expose the adhesive layer 150, and the polarizer is attached to the substrate to be attached 900 by the adhesive layer 150, and is usually torn off after being attached.
  • the surface protective film 110 is the polarizing layer 130, which is usually a polyvinyl alcohol (PVA) layer containing iodine molecules having a polarizing effect; and the first protective layer 120 and the second protective layer 140 are both Transparent
  • the cellulose triacetate (TAC) layer is mainly for maintaining the stretched state of the polarizer in the polarizing layer 130, preventing the loss of the photon moisture and protecting it from external influences.
  • a brightness enhancement film (Bright Enhance Film) 170 is usually attached to the protective layer 120/140 to prepare a polarizer having a brightness enhancement film;
  • a polarizer having a brightness enhancement film is usually attached to the protective layer 120/140 to prepare a polarizer having a brightness enhancement film;
  • 3M's most famous DEBF optical film has a good brightness enhancement effect and is more used in display devices.
  • the object of the present invention is to provide a quantum dot polarizer having a quantum dot brightness enhancement film, which can be used in a display device instead of the existing brightness enhancement film, thereby ensuring polarization and improving color gamut coverage of the display. , reducing the process in the preparation of polarizer.
  • the present invention provides a quantum dot polarizer comprising a polarizer and a quantum dot brightness enhancement film attached to the polarizer;
  • the polarizer includes a polarizing layer, a first protective layer respectively located on opposite sides of the polarizing layer, and a second protective layer; the quantum dot brightness enhancing film is attached on the second protective layer;
  • the point-enhancing film is a film containing quantum dots.
  • the quantum dots in the quantum dot brightness enhancement film are composed of a semiconductor material, two or more semiconductor materials, or a carbon quantum dot material, including a II-VI semiconductor material, and a III-V family. semiconductors.
  • the II-VI semiconductor material includes CdS, CdSe, CdTe, and ZnSe
  • the III-V semiconductor material includes InP, and InAs.
  • the quantum dots are quantum dots modified by a surface grafting method or a surface coating method.
  • the quantum dots are oil soluble or water soluble.
  • the quantum dots are nanoparticles having a diameter of 0 to 20 nm.
  • the film forming process of the quantum dot brightness enhancing film is spray coating, spin coating, printing, or slit coating.
  • the quantum dot polarizer is used as a lower polarizer of a liquid crystal display panel.
  • the polarizing layer is an iodine-based polarizing film or a dye-based polarizing film; and the material of the polarizing layer contains polyvinyl alcohol.
  • the material of the first protective layer and the second protective layer comprises cellulose triacetate.
  • the present invention also provides a quantum dot polarizer comprising a polarizer and a quantum dot brightness enhancement film attached to the polarizer;
  • the polarizer includes a polarizing layer, and first and second protective layers respectively located on opposite sides of the polarizing layer; the quantum dot brightness enhancing film is attached to the second protective layer; Increase The bright film is a film containing quantum dots;
  • the quantum dots are nanoparticles having a diameter of 0-20 nm;
  • the film forming process of the quantum dot brightness enhancing film is spraying, spin coating, printing, or slit coating;
  • the quantum dot polarizer is used as a lower polarizer of a liquid crystal display panel
  • the polarizing layer is an iodine-based polarizing film or a dye-based polarizing film; and the material of the polarizing layer comprises polyvinyl alcohol;
  • the material of the first protective layer and the second protective layer comprises cellulose triacetate.
  • the quantum dot polarizer of the present invention comprises a polarizer and a quantum dot brightness enhancement film attached to the polarizer, and is obtained by bonding a film-forming quantum dot brightness enhancement film to a polarizer.
  • FIG. 1 is a schematic cross-sectional structural view of a conventional polarizer
  • FIG. 2 is a schematic view showing a conventional polarizer applied to a liquid crystal panel
  • FIG. 3 is a schematic cross-sectional structural view of a quantum dot polarizer of the present invention.
  • FIG. 4 is a schematic view showing the application of the quantum dot polarizer of the present invention to a liquid crystal display device.
  • the present invention provides a quantum dot polarizer, comprising a polarizer 10, and a quantum dot brightness enhancement film 20 attached to the polarizer 10;
  • the polarizer 10 includes a polarizing layer 11 and a first protective layer 12 and a second protective layer 13 respectively located on opposite sides of the polarizing layer 11; the quantum dot brightness enhancing film 20 is attached to the second protection
  • the quantum dot brightness enhancement film 20 is a film material containing quantum dots 201, which may be a quantum dot film obtained by mixing a quantum dot with other materials and formed by a film forming process, or may be prepared by quantum dots alone. A quantum dot film.
  • the quantum dots 201 in the quantum dot brightness enhancement film 20 may be composed of a semiconductor material such as a II-VI semiconductor material (such as CdS, CdSe, CdTe, ZnSe, etc.) or a III-V semiconductor.
  • the material such as InP, InAs, etc.
  • the quantum dots 201 in the quantum dot brightness enhancement film 20 may be a mixture of one or more kinds.
  • the quantum dots 201 in the quantum dot brightness enhancement film 20 are a combination of a plurality of quantum dots. In order to achieve better color gamut improvement and mixing effect.
  • the quantum dot 201 may be a quantum dot modified by a surface grafting method or a surface coating method, thereby achieving a more uniform and stable mixing effect in a solvent.
  • the quantum dot 201 is oil-soluble or water-soluble.
  • the quantum dots 201 are nanoparticles having a diameter of 0-20 nm.
  • the film forming process of the quantum dot brightness enhancing film 20 is a process such as spraying, spin coating, printing, or slit coating.
  • the polarizing layer 11 is an iodine-based polarizing film or a dye-based polarizing film; and the material of the polarizing layer 11 contains polyvinyl alcohol.
  • the material of the first protective layer 12 and the second protective layer 13 comprises cellulose triacetate.
  • the quantum dot polarizer can be used as a lower polarizer of the liquid crystal display panel; since the quantum dots in the quantum dot brightness enhancement film 20 have luminescent characteristics, the gamut coverage can be increased;
  • the quantum dot polarizer of the present invention when used as a lower polarizer of a liquid crystal display panel, it is disposed between the liquid crystal display panel 200 and the backlight module 300, and the quantum dot brightness enhancement film 20 is attached to the polarized light.
  • the sheet 10 is adjacent to one side of the backlight module 300; and the upper polarizer is a conventional polarizer including the first protective layer 120, the polarizing layer 130, and the second protective layer 140.
  • the quantum dot polarizer of the present invention has a BOA (Black Matrix On Array, a black matrix on an array substrate), a COA (Color Filter On Array), and a GOA (Gate Driver on Array).
  • the gate drive can be used on an array substrate type liquid crystal panel.
  • the quantum dot polarizer of the present invention comprises a polarizer and a quantum dot brightness enhancement film bonded to the polarizer, and is obtained by bonding a film-forming quantum dot brightness enhancement film to the polarizer.
  • the process in the preparation of the quantum dot polarizer is reduced, and the quantum dot brightness enhancement film is a film containing quantum dots, which can be used in a display device instead of the existing brightness enhancement film, and the quantum dot polarizer is The polarization is ensured, and the color gamut coverage of the display can be effectively improved, and the preparation process is simple.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Biophysics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polarising Elements (AREA)

Abstract

一种量子点偏光片，包括偏光片（10）、及贴合于偏光片（10）上的量子点增亮膜（20）；偏光片（10）包括偏光层（11）及分别位于偏光层（11）两侧的第一保护层（12）和第二保护层（13）；量子点增亮膜（20）贴覆于第二保护层（13）上；量子点增量膜（20）为含有量子点（201）的膜材；量子点偏光片由成膜后的量子点增亮膜（20）贴合于偏光片（10）上得到，减化了量子点偏光片成型制备中的工艺，保证了偏光性，能够有效提高显示器的色域覆盖率，实现显示器的广视角。

Description

量子点偏光片 技术领域
本发明涉及显示技术领域，尤其涉及一种量子点偏光片。
背景技术
随着科技的发展和社会的进步，人们对于信息交流和传递等方面的依赖程度日益增加。而显示器件作为信息交换和传递的主要载体和物质基础，现已成为众多从事信息光电研究的科学家争相抢占的热点和高地。
量子点(Quantum Dots，简称QDs)是半径小于或接近于波尔半径的半导体纳米晶体，大部分由Ⅱ-Ⅵ族或Ⅲ-Ⅴ族元素组成的三个维度尺寸纳米材料。由于量子限域效应，其内部的电子和空穴的运输受到限制，使得连续的能带结构变成分离的能级结构。当量子点的尺寸不同时，电子与空穴的量子限域程度不一样，分立的能级结构不同。在受到外来能量激发后，不同尺寸的量子点即发出不同波长的光，也就是各种颜色的光。
量子点的优势在于：通过调控量子点的尺寸，可以实现发光波长范围覆盖到红外及整个可见光波段，且发射光波段窄，色彩饱和度高；量子点材料量子转换效率高；材料性能稳定；制备方法简单多样，可以从溶液中制备，资源丰富。
但是光线经过量子点后，出射方向是随机的。而LCD(Liquid Crystal Display)显示器件的工作原理是利用液晶的旋光性和双折射，通过电压控制液晶的转动，使经过下偏光片后的线偏振光随之发生旋转，从上偏光片(与下偏光片的偏振方向垂直)射出，从而上、下偏光片加上液晶盒起到光开关的作用。显然，这种光学开关对量子点发出的光线无法完全起到作用，当经过量子点后的发散光线穿过液晶时，不再能很好的控制相应像素点位的所有光线，LCD就会发生漏光现象。
如图1所示，普通的偏光片是由多层膜组合而成的，以下偏光片为例，一般包含以下几层，从下到上依次为：表面保护膜110、第一保护层120、偏光层130、第二保护层140、黏着层150、及剥离保护膜160。在贴附时，如图2所示，将剥离保护膜160撕掉以露出黏着层150，所述偏光片以黏着层150贴附于待贴附基板900上，贴附后，通常会撕掉表面保护膜110；该偏光片结构中最核心的部分是偏光层130，通常为含有具有偏光作用的碘分子的聚乙烯醇(PVA)层；而第一保护层120、第二保护层140均为透明的 三醋酸纤维素(TAC)层，主要是为了维持偏光层130中偏光子的被拉伸状态，避免偏光子水分的流失，保护其不受外界影响。另外，为减少显示装置的厚度，并提升显示装置的光学特性，通常会将增亮膜(Bright Enhance Film)170贴合于保护层120/140上而制得含有增亮膜的偏光片；目前在增亮膜中，3M公司最著名的DEBF光学膜具有良好的增亮效果而较多的应用于显示装置中。
发明内容
本发明的目的在于提供一种量子点偏光片，具有量子点增亮膜，能够取代现有的增亮膜而应用于显示装置中，既保证了偏光性，又能够提高显示器的色域覆盖率，减化偏光片成型制备中的工艺。
为实现上述目的，本发明提供一种量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜；
所述偏光片包括偏光层、及分别位于所述偏光层两侧的第一保护层、和第二保护层；所述量子点增亮膜贴覆于所述第二保护层上；所述量子点增亮膜为含有量子点的膜材。
所述量子点增亮膜内的量子点由一种半导体材料、两种及以上的半导体材料、或碳量子点材料所组成，所述半导体材料包括Ⅱ-Ⅵ族半导体材料、及Ⅲ-Ⅴ族半导体材料。
所述Ⅱ-Ⅵ族半导体材料包括CdS、CdSe、CdTe、及ZnSe，所述Ⅲ-Ⅴ族半导体材料包括InP、及InAs。
所述量子点为经过表面接枝法、或表面包覆法进行改性处理后的量子点。
所述量子点为油溶性、或水溶性。
所述量子点为直径为0～20nm的纳米粒子。
所述量子点增亮膜的成膜工艺为喷涂、旋涂、打印、或狭缝涂布。
所述量子点偏光片用作液晶显示面板的下偏光片。
所述偏光层为碘系偏光膜、或染料系偏光膜；所述偏光层的材料包含聚乙烯醇。
所述第一保护层、第二保护层的材料包含三醋酸纤维素。
本发明还提供一种量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜；
所述偏光片包括偏光层、及分别位于所述偏光层两侧的第一保护层和第二保护层；所述量子点增亮膜贴覆于所述第二保护层上；所述量子点增 亮膜为含有量子点的膜材；
其中，所述量子点为直径为0～20nm的纳米粒子；
其中，所述量子点增亮膜的成膜工艺为喷涂、旋涂、打印、或狭缝涂布；
其中，所述量子点偏光片用作液晶显示面板的下偏光片；
其中，所述偏光层为碘系偏光膜、或染料系偏光膜；所述偏光层的材料包含聚乙烯醇；
其中，所述第一保护层、第二保护层的材料包含三醋酸纤维素。
本发明的有益效果：本发明的量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜，由成膜后的量子点增亮膜贴合于偏光片上得到，从而减化了量子点偏光片成型制备中的工艺，所述量子点增亮膜为含有量子点的膜材能够取代现有的增亮膜而应用于显示装置中，所述量子点偏光片既保证了偏光性，还能够有效提高显示器的色域覆盖率，同时还能实现显示器的广视角，且制备工艺简单。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其他有益效果显而易见。
附图中，
图1为现有的偏光片的剖面结构示意图；
图2为现有的偏光片应用于液晶面板的示意图；
图3为本发明的量子点偏光片的剖面结构示意图；
图4为本发明的量子点偏光片应用于液晶显示装置中的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图3，本发明提供一种量子点偏光片，包括偏光片10、及贴合于所述偏光片10上的量子点增亮膜20；
所述偏光片10包括偏光层11、及分别位于所述偏光层11两侧的第一保护层12、和第二保护层13；所述量子点增亮膜20贴覆于所述第二保护层13上；所述量子点增亮膜20为含有量子点201的膜材，其可以是由量子点与其他材料混合后经成膜工艺得到的量子点膜，也可以是单独由量子点制备而成的量子点膜。
具体的，所述量子点增亮膜20内的量子点201可以由一种半导体材料组成，如由Ⅱ-Ⅵ族半导体材料(如CdS、CdSe、CdTe、ZnSe等)、或Ⅲ-Ⅴ族半导体材料(如InP、InAs等)所组成，也可以由两种或两种以上的半导体材料组成，也可以由碳量子点材料或其他元素的材料所组成。
具体的，所述量子点增亮膜20内的量子点201可以为一种或多种的混合，优选的，所述量子点增亮膜20中的量子点201为多种量子点的组合，以达到较好的色域提升效果和混合效果。
具体的，所述量子点201可以为经过表面接枝法、或表面包覆法进行改性处理后的量子点，从而可以使其在溶剂中达到更均匀更稳定的混合效果。
具体的，所述量子点201为油溶性、或水溶性。
优选的，所述量子点201为直径为0～20nm的纳米粒子。
具体的，所述量子点增亮膜20的成膜工艺为喷涂、旋涂、打印、或狭缝涂布等工艺。
具体的，所述偏光层11为碘系偏光膜、或染料系偏光膜；所述偏光层11的材料包含聚乙烯醇。
具体的，所述第一保护层12、第二保护层13的材料包含三醋酸纤维素。
具体的，所述量子点偏光片可用作液晶显示面板的下偏光片；由于量子点增亮膜20中的量子点具有发光特性，从而可以起到增加色域覆盖率的作用；
如图4所示，本发明的量子点偏光片用作液晶显示面板的下偏光片时，设置于液晶显示面板200与背光模组300之间，所述量子点增亮膜20贴附于偏光片10靠近所述背光模组300的一侧；而上偏光片采用现有的包含第一保护层120、偏光层130、第二保护层140的普通的偏光片。
具体的，本发明的量子点偏光片在BOA(Black matrix On Array，黑色矩阵设于阵列基板)、COA(Color filter On Array，彩色滤光片设于阵列基板)、GOA(Gate Driver on Array，栅极驱动设于阵列基板)型液晶面板上均可使用。
综上所述，本发明的量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜，由成膜后的量子点增亮膜贴合于偏光片上得到，从而减化了量子点偏光片成型制备中的工艺，所述量子点增亮膜为含有量子点的膜材，能够取代现有的增亮膜而应用于显示装置中，所述量子点偏光片既保证了偏光性，还能够有效提高显示器的色域覆盖率，且制备工艺简单。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (15)

  1. 一种量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜；
    所述偏光片包括偏光层、及分别位于所述偏光层两侧的第一保护层和第二保护层；所述量子点增亮膜贴覆于所述第二保护层上；所述量子点增亮膜为含有量子点的膜材。
  2. 如权利要求1所述的量子点偏光片，其中，所述量子点增亮膜内的量子点由一种半导体材料、两种以上的半导体材料、或碳量子点材料所组成，所述半导体材料包括Ⅱ-Ⅵ族半导体材料、及Ⅲ-Ⅴ族半导体材料。
  3. 如权利要求2所述的量子点偏光片，其中，所述Ⅱ-Ⅵ族半导体材料包括CdS、CdSe、CdTe、及ZnSe，所述Ⅲ-Ⅴ族半导体材料包括InP、及InAs。
  4. 如权利要求1所述的量子点偏光片，其中，所述量子点为经过表面接枝法、或表面包覆法进行改性处理后的量子点。
  5. 如权利要求4所述的量子点偏光片，其中，所述量子点为油溶性、或水溶性。
  6. 如权利要求1所述的量子点偏光片，其中，所述量子点为直径为0～20nm的纳米粒子。
  7. 如权利要求1所述的量子点偏光片，其中，所述量子点增亮膜的成膜工艺为喷涂、旋涂、打印、或狭缝涂布。
  8. 如权利要求1所述的量子点偏光片，其中，所述量子点偏光片用作液晶显示面板的下偏光片。
  9. 如权利要求1所述的量子点偏光片，其中，所述偏光层为碘系偏光膜、或染料系偏光膜；所述偏光层的材料包含聚乙烯醇。
  10. 如权利要求1所述的量子点偏光片，其中，所述第一保护层、第二保护层的材料包含三醋酸纤维素。
  11. 一种量子点偏光片，包括偏光片、及贴合于所述偏光片上的量子点增亮膜；
    所述偏光片包括偏光层、及分别位于所述偏光层两侧的第一保护层和第二保护层；所述量子点增亮膜贴覆于所述第二保护层上；所述量子点增亮膜为含有量子点的膜材；
    其中，所述量子点为直径为0～20nm的纳米粒子；
    其中，所述量子点增亮膜的成膜工艺为喷涂、旋涂、打印、或狭缝涂 布；
    其中，所述量子点偏光片用作液晶显示面板的下偏光片；
    其中，所述偏光层为碘系偏光膜、或染料系偏光膜；所述偏光层的材料包含聚乙烯醇；
    其中，所述第一保护层、第二保护层的材料包含三醋酸纤维素。
  12. 如权利要求11所述的量子点偏光片，其中，所述量子点增亮膜内的量子点由一种半导体材料、两种以上的半导体材料、或碳量子点材料所组成，所述半导体材料包括Ⅱ-Ⅵ族半导体材料、及Ⅲ-Ⅴ族半导体材料。
  13. 如权利要求12所述的量子点偏光片，其中，所述Ⅱ-Ⅵ族半导体材料包括CdS、CdSe、CdTe、及ZnSe，所述Ⅲ-Ⅴ族半导体材料包括InP、及InAs。
  14. 如权利要求11所述的量子点偏光片，其中，所述量子点为经过表面接枝法、或表面包覆法进行改性处理后的量子点。
  15. 如权利要求14所述的量子点偏光片，其中，所述量子点为油溶性、或水溶性。
PCT/CN2015/099281 2015-12-08 2015-12-28 量子点偏光片 WO2017096655A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/908,129 US20180031747A1 (en) 2015-12-08 2015-12-28 Quantum dot polarization plate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510898214.X 2015-12-08
CN201510898214.XA CN105334660A (zh) 2015-12-08 2015-12-08 量子点偏光片

Publications (1)

Publication Number Publication Date
WO2017096655A1 true WO2017096655A1 (zh) 2017-06-15

Family

ID=55285282

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/099281 WO2017096655A1 (zh) 2015-12-08 2015-12-28 量子点偏光片

Country Status (3)

Country Link
US (1) US20180031747A1 (zh)
CN (1) CN105334660A (zh)
WO (1) WO2017096655A1 (zh)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105925215B (zh) * 2016-05-03 2017-11-07 深圳市华星光电技术有限公司 量子点胶水的制作方法、量子点胶水及量子点偏光片
JP2018200413A (ja) * 2017-05-29 2018-12-20 住友化学株式会社 偏光板のセットおよび液晶パネル
CN107315218A (zh) * 2017-08-31 2017-11-03 深圳市华星光电技术有限公司 量子点偏光片
CN107436503A (zh) * 2017-09-04 2017-12-05 深圳市华星光电技术有限公司 液晶显示组件
CN107656399A (zh) * 2017-11-01 2018-02-02 惠州市华星光电技术有限公司 液晶显示器
CN107807471A (zh) * 2017-11-13 2018-03-16 深圳市华星光电技术有限公司 量子点偏光片与液晶显示器
CN107991806A (zh) * 2017-11-24 2018-05-04 深圳市华星光电技术有限公司 背光模组及液晶显示装置
CN107976735A (zh) * 2017-12-28 2018-05-01 南京联信自动化科技有限公司 一种柔性oled偏光片
CN107894626A (zh) * 2017-12-28 2018-04-10 南京联信自动化科技有限公司 一种量子点偏光片
CN108169837A (zh) * 2018-01-16 2018-06-15 惠州市华星光电技术有限公司 液晶显示器及其偏光片
CN108333829B (zh) * 2018-02-01 2021-11-09 惠州市华星光电技术有限公司 一种液晶显示面板和液晶显示装置
CN109212653B (zh) * 2018-10-09 2020-03-24 深圳市华星光电技术有限公司 一种量子点偏光片
CN109375421B (zh) * 2018-12-19 2021-08-24 惠州市华星光电技术有限公司 液晶显示器
CN111443407A (zh) * 2019-01-17 2020-07-24 惠州市凯帝智光电科技有限公司 一种多功能复合板
CN112965287B (zh) * 2020-05-08 2022-11-29 重庆康佳光电技术研究院有限公司 一种彩膜基板的制备方法、显示装置与显示背板
CN111679355A (zh) * 2020-06-10 2020-09-18 Tcl华星光电技术有限公司 量子点偏光片、显示基板及显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102854558A (zh) * 2012-09-27 2013-01-02 京东方科技集团股份有限公司 偏光片及显示装置
CN103091892A (zh) * 2011-10-28 2013-05-08 乐金显示有限公司 液晶显示装置
US20150331278A1 (en) * 2014-05-14 2015-11-19 Japan Display Inc. Display device
CN105093381A (zh) * 2015-09-24 2015-11-25 深圳市华星光电技术有限公司 量子点偏光片及其制作方法
CN105093382A (zh) * 2015-09-25 2015-11-25 深圳市华星光电技术有限公司 一种偏光片

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103091892A (zh) * 2011-10-28 2013-05-08 乐金显示有限公司 液晶显示装置
CN102854558A (zh) * 2012-09-27 2013-01-02 京东方科技集团股份有限公司 偏光片及显示装置
US20150331278A1 (en) * 2014-05-14 2015-11-19 Japan Display Inc. Display device
CN105093381A (zh) * 2015-09-24 2015-11-25 深圳市华星光电技术有限公司 量子点偏光片及其制作方法
CN105093382A (zh) * 2015-09-25 2015-11-25 深圳市华星光电技术有限公司 一种偏光片

Also Published As

Publication number Publication date
US20180031747A1 (en) 2018-02-01
CN105334660A (zh) 2016-02-17

Similar Documents

Publication Publication Date Title
WO2017096655A1 (zh) 量子点偏光片
WO2017080026A1 (zh) 量子点偏光片
US20170269274A1 (en) Method for manufacturing quantum dot polarization plate
WO2017049678A1 (zh) 一种偏光片
US11022836B2 (en) Polarizer and display device
CN105182594B (zh) 显示基板
WO2016155091A1 (zh) 液晶显示器
CN102842271B (zh) 有机发光显示装置
US9442343B2 (en) Electronic paper display device
KR101243828B1 (ko) 유기 발광 표시 장치
US10534232B2 (en) Array substrate and manufacturing method thereof
CN105182601B (zh) 一种阵列基板、显示面板、显示装置及制作方法
CN206757245U (zh) 显示面板及显示装置
US10782551B2 (en) Display device
US20180231834A1 (en) Display panels and liquid crystal display devices
WO2017041323A1 (zh) 一种偏光片
WO2015078026A1 (zh) 彩色液晶显示面板
CN106896568A (zh) 液晶显示装置
WO2011136072A1 (ja) 表示装置
WO2016169069A1 (zh) 偏光片、基于量子效应的显示面板及显示装置
KR20110119486A (ko) 양면표시장치 및 그의 제조방법
CN113991036A (zh) 一种oled显示面板
CN203337949U (zh) 透光基板、显示面板和显示装置
WO2015078027A1 (zh) 彩色液晶显示面板
US10663781B2 (en) Display device and manufacturing method thereof

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15910129

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15910129

Country of ref document: EP

Kind code of ref document: A1