WO2017190376A1 - 液晶显示器、液晶显示模组及其液晶单元 - Google Patents

液晶显示器、液晶显示模组及其液晶单元 Download PDF

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Publication number
WO2017190376A1
WO2017190376A1 PCT/CN2016/082810 CN2016082810W WO2017190376A1 WO 2017190376 A1 WO2017190376 A1 WO 2017190376A1 CN 2016082810 W CN2016082810 W CN 2016082810W WO 2017190376 A1 WO2017190376 A1 WO 2017190376A1
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Prior art keywords
liquid crystal
quantum dot
crystal display
dot material
display module
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English (en)
French (fr)
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李冬泽
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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 US15/109,639 priority Critical patent/US10531579B2/en
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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
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/133565—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements inside the LC elements, i.e. between the cell substrates

Definitions

  • the present invention relates to the technical field of liquid crystal displays, and in particular to a liquid crystal display, a liquid crystal display module, and a liquid crystal cell thereof.
  • Quantum Dot luminescent materials have the advantages of concentrated luminescence spectrum and high color purity. These advantages can greatly improve the color gamut of LCD displays and improve the color reproduction capability of LCD displays.
  • quantum dot TVs are commercially available. The best embodiment for the display field.
  • the prior art mainly focuses on mixing and packaging quantum dots of an R (red) G (green) B (blue) in an engineering plastic film (QD film) or a glass tube (QD tube), and placing the structure The position between the backlight and the display system is excited by the traditional white backlight to achieve the purpose of rich color gamut.
  • QD film engineering plastic film
  • QD tube glass tube
  • the use of quantum dot materials is relatively simple, and there is also a QD dosage. Larger, more expensive, and less material reliability, and the use of white light backlights to excite quantum dot materials can also cause a decline in light utilization.
  • the embodiment of the invention provides a liquid crystal display, a liquid crystal display module and a liquid crystal unit thereof, so as to solve the problem that the quantum dot material in the prior art has a large amount of backlight utilization and the structure of the liquid crystal cell is complicated due to the need to provide an alignment film. problem.
  • embodiments of the present invention provide a liquid crystal cell including an upper substrate, a lower substrate, and a mixture of a quantum dot material and a liquid crystal material disposed between the upper substrate and the lower substrate.
  • the quantum dot material comprises a red quantum dot material and a green quantum dot material.
  • the green quantum dot material comprises:
  • CdS, ZnSe, ZnCdS 2 , ZnS, ZnO as an inorganic protective shell layer; and one or more of R-COOH, R-NH 2 , R-SH as surface ligands, wherein R is a linear alkane or olefin molecule of 12 to 20 carbon atoms.
  • the red quantum dot material comprises:
  • CdS, ZnSe, ZnCdS 2 , ZnS, ZnO as an inorganic protective shell layer; and one or more of R-COOH, R-NH 2 , R-SH as surface ligands, wherein R is a linear alkane or olefin molecule of 12 to 20 carbon atoms.
  • the mass ratio of the total doping amount of the two quantum dot materials to the total mass of the mixture is 0.05 to 5 wt%.
  • the quantum dot material is mixed with the negative liquid crystal material at a temperature above the clearing point of the liquid crystal.
  • the present invention further provides a liquid crystal display module, which comprises the liquid crystal cell according to any one of the above embodiments.
  • the liquid crystal display module adopts a white light source backlight.
  • the liquid crystal display module adopts a blue light source backlight.
  • the present invention further provides a liquid crystal display comprising the liquid crystal display module according to any of the above embodiments.
  • the introduction of QD (quantum dot, Quantum Dot) material promotes the directional arrangement of the liquid crystal molecules and plays an alignment role. It can replace the traditional alignment film structure; on the other hand, the liquid crystal unit is matched with blue light (when the quantum dot material is doped with a large amount) or the backlight of the white LED to realize the color gamut improvement, and the color expression of the LCD display can be improved;
  • the combination of quantum dots and a liquid crystal system in a liquid crystal cell contributes to the effective use of QD materials, and saves material and process costs compared to conventional QD film and QD tube technology.
  • the liquid crystal display unit is equipped with a blue backlight, it is also possible to reduce the thickness of the CF film (color filter) without reducing the display effect.
  • FIG. 1 is a schematic view showing the structure of a preferred embodiment of the liquid crystal cell of the present invention in the case where the electrode plate is not energized;
  • Figure 2 is a schematic view showing the structure of the liquid crystal cell plate in the embodiment of Figure 1;
  • FIG. 3 is a schematic structural view of a preferred embodiment of a liquid crystal display module of the present invention.
  • Figure 4 is a schematic view showing the structure of a preferred embodiment of the liquid crystal display of the present invention.
  • FIG. 1 is a schematic structural diagram of a preferred embodiment of the liquid crystal cell of the present invention in the case where the electrode plate is not energized; and FIG. 2 is a structure of the liquid crystal cell plate in the embodiment of FIG. Schematic diagram.
  • the liquid crystal cell includes, but is not limited to, the following components: an upper substrate 100, a lower substrate 200, and a mixture of the quantum dot material 300 and the liquid crystal material 400 disposed between the upper substrate 100 and the lower substrate 200.
  • the quantum dot material 300 comprises a red quantum dot material and a green quantum dot material (not labeled in the figure).
  • the green quantum dot material comprises: one or more of ZnCdSe 2 , InP, Cd 2 SSe as a luminescent core; one of CdS, ZnSe, ZnCdS 2 , ZnS, ZnO as an inorganic protective shell layer or And a plurality of R-COOH, R-NH 2 , R-SH as a surface ligand, wherein R is a linear alkane or olefin molecule of 12 to 20 carbon atoms.
  • the red quantum dot material comprises: one or more of CdSe, Cd 2 SeTe, InAs as a luminescent core; one or more of CdS, ZnSe, ZnCdS 2 , ZnS, ZnO as an inorganic protective shell layer; And one or more of R-COOH, R-NH 2 , R-SH as a surface ligand, wherein R is a linear alkane or olefin molecule of 12 to 20 carbon atoms.
  • the above only exemplifies the composition of a part of the quantum dot material, and those skilled in the art can also obtain other components under the guidance of the above exemplary materials.
  • the total doping amount of the two quantum dot materials accounts for 0.05 to 5 by mass of the total mass of the mixture. Wt%.
  • the liquid crystal cell in this embodiment is mixed with R (red) and G (green) quantum dots having fluorescence characteristics, and exhibits a relatively fixed distribution under the action of the surface ligand of the quantum dot material, thereby realizing the quantum dot material.
  • the technical solution has dual functionality, and the introduction of the quantum dot material (hereinafter referred to as QD material) promotes the directional arrangement of the liquid crystal molecules, which serves as an alignment function and can replace the traditional alignment.
  • the film structure on the other hand, the structure is matched with the backlight of the blue or white LED, which can improve the color gamut and improve the color expression of the LCD display; the liquid crystal unit combines the quantum dot with the liquid crystal system to help realize the QD
  • the efficient use of materials saves material and process costs compared to conventional QD film and QD tube technology.
  • the alignment principle of QD in the technical solution proposed by the present invention is achieved by introducing the nanosphere quantum material and using the surface effect to make the van der Waals force between the liquid crystal molecules and the substrate to achieve the balance between the liquid crystal molecules.
  • the application of QD luminescent materials will intuitively improve the condition that the color of traditional LCD displays is relatively insufficient.
  • the structure of the liquid crystal material doped with quantum dot materials in the liquid crystal cell is high-gamut and high-saturation. The development of display devices has important implications.
  • the liquid crystal cell in the embodiment of the invention introduces the light-emitting QD material into the liquid crystal system, and the specific preparation process thereof is as follows: firstly, the temperature of the two light-emitting quantum dot materials of R and G and the negative liquid crystal above the clearing point of the liquid crystal (depending on the liquid crystal material) The mixing is usually carried out at a temperature of 75 ° C or higher, and the total doping amount of the two kinds of quantum dots accounts for 0.05 to 5 wt% of the total mass of the mixture.
  • the liquid crystal material doped with QD can be prepared by vacuum infusion or dropping.
  • the surface modification of the quantum dot material is mainly based on the coordination of polar molecules, and thus the liquid crystal molecules
  • the structure of the alkane and olefin in the ligand part is in contact with each other, and the non-polarity is similar to the polarity of the liquid crystal molecule. Therefore, due to the hydrophobic interaction, the quantum dot material will be close to the surface of the upper and lower substrates, so that the liquid crystal molecules can reach
  • the state of stress balance shows a uniform alignment. After the driving voltage is applied to the above structure, the liquid crystals are arranged in an irregular orientation horizontally, and appear in the arrangement form as shown in FIG. 2; after the electric field is cancelled, the vertical alignment is again returned under the dual action of the intermolecular force and the van der Waals force (eg, The liquid crystal molecular arrangement shown in Fig. 1).
  • FIG. 3 is a schematic structural diagram of a preferred embodiment of the liquid crystal display module of the present invention.
  • the display module includes a backlight unit 666 to And the liquid crystal cell 555 described in the above embodiment.
  • the liquid crystal display module adopts a white light source backlight; and the quantum dot material is doped.
  • the mass ratio of the total mass of the mixture is between 2 and 5 wt%
  • the liquid crystal display module can use a blue light source backlight.
  • the liquid crystal display module in the embodiment of the present invention has a different application ratio according to the ratio of doping of the quantum dot material, and the traditional white backlight is used when the doping amount is small, and the blue backlight can be matched when the doping amount is large.
  • the thickness of the color filter film (CF film) is reduced, and a balance is obtained between the color gamut and the transmittance, so that the same satisfactory display effect can be achieved.
  • the technical features of other parts of the liquid crystal module are within the understanding of those skilled in the art and will not be described in detail herein.
  • FIG. 4 is a schematic structural diagram of a preferred embodiment of the liquid crystal display of the present invention.
  • the liquid crystal display includes a housing 8 and a liquid crystal display module in the above embodiment provided inside the housing 8.
  • a liquid crystal display module in the above embodiment provided inside the housing 8.
  • the technical features of the liquid crystal display module please refer to the detailed description in the above embodiments, and other structural features of the liquid crystal display are within the scope of those skilled in the art, and are not described herein again.
  • the introduction of QD (quantum dot, Quantum Dot) material promotes the directional arrangement of the liquid crystal molecules and plays an alignment role. It can replace the traditional alignment film structure; on the other hand, the liquid crystal unit can be used with a blue light (when the quantum dot material is doped with a large amount of doping) or a white LED backlight to improve the color gamut and improve the color expression of the LCD display;
  • the combination of quantum dots and a liquid crystal system in a liquid crystal cell contributes to the effective use of QD materials, and saves material and process costs compared to conventional QD film and QD tube technology.
  • the liquid crystal display unit is equipped with a blue backlight, it is also possible to reduce the thickness of the CF film (color filter) without reducing the display effect.

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Abstract

一种液晶显示器、液晶显示模组及其液晶单元（555），该液晶单元（555）包括上基板（100）、下基板（200）以及设于上基板（100）和下基板（200）之间的量子点材料（300）和液晶材料（400）的混合物；其中，量子点材料（300）包括红色量子点材料和绿色量子点材料；两种量子点材料（300）的总掺杂量占混合物总质量的质量比为0.05～5wt％。该液晶单元（555），QD材料的引入一方面促成了液晶分子有方向性的排列，起到配向作用；另一方面该液晶单元（555）搭配蓝光或白光LED的背光源，实现色域的提升。

Description

液晶显示器、液晶显示模组及其液晶单元 【技术领域】
本发明涉及液晶显示器的技术领域，具体是涉及一种液晶显示器、液晶显示模组及其液晶单元。
【背景技术】
量子点(Quantum Dot)发光材料具有发光光谱集中，色纯度高等优点，利用这些优点可以大幅度提高目前LCD显示器的色域，提高LCD显示器的色彩还原能力，目前市售的量子点电视就是该材料应用于显示领域的最好体现。现有的技术主要集中于将发光波段在R(红)G(绿)B(蓝)的量子点混合封装于工程塑料薄膜(QD film)或玻璃管(QD tube)中，并将该结构置于背光与显示系统之间的位置，以传统白光背光激发，以达到丰富色域的目的，但无论是QD film还是QD tube结构，对于量子点材料的使用手段较为单一，同时也存在着QD用量较大、成本过高以及材料信赖度低等问题，而且采用白光背光源激发量子点材料，也会造成光利用率的下降。
【发明内容】
本发明实施例提供一种液晶显示器、液晶显示模组及其液晶单元，以解决现有技术中量子点材料的用量大背光利用率低以及液晶盒因需要设置配向膜等造成的结构复杂的技术问题。
为解决上述问题，本发明实施例提供了一种液晶单元，所述液晶单元包括上基板、下基板以及设于所述上基板和所述下基板之间的量子点材料和液晶材料的混合物。
根据本发明一优选实施例，所述量子点材料包括红色量子点材料和绿色量子点材料。
根据本发明一优选实施例，所述绿色量子点材料包括：
作为发光核的ZnCdSe2，InP，Cd2SSe中的一种或多种；
作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作 为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
根据本发明一优选实施例，所述红色量子点材料包括：
作为发光核的CdSe，Cd2SeTe，InAs中的一种或多种；
作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
根据本发明一优选实施例，两种量子点材料的总掺杂量占混合物总质量的质量比为0.05～5wt％。
根据本发明一优选实施例，所述量子点材料与负性液晶材料在液晶清亮点以上的温度进行混合。
为解决上述技术问题，本发明还提供一种液晶显示模组，所述液晶显示模组包括上述实施例中任一项所述的液晶单元。
根据本发明一优选实施例，所述量子点材料的掺杂量占混合物总质量的质量比在0.05～2wt％之间时，所述液晶显示模组采用白色光源背光。
根据本发明一优选实施例，所述量子点材料的掺杂量占混合物总质量的质量比在2～5wt％之间时，所述液晶显示模组采用蓝色光源背光。
为解决上述技术问题，本发明进一步提供一种液晶显示器，所述液晶显示器包括上述实施例任一项所述的液晶显示模组。
相对于现有技术，本发明提供的液晶显示器、液晶显示模组及其液晶单元，QD(量子点，Quantum Dot)材料的引入一方面促成了液晶分子有方向性的排列，起到配向作用，可以取代传统的配向膜结构；另一方面该液晶单元搭配蓝光(量子点材料掺杂量较大时)或白光LED的背光源，实现色域的提升，可以提高LCD显示器的色彩表现力；该液晶单元中将量子点与液晶体系相结合，有助于实现QD材料的有效利用，较之常规的QD film以及QD tube技术更为节省材料及制程成本。另外，当液晶显示单元搭配蓝光背光时，还可以达到在削减CF膜(Color Filter，彩色滤光膜)的厚度的同时不降低显示效果的目的。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明液晶单元一优选实施例极板未通电情况下的结构示意简图；
图2是图1实施例中液晶单元极板通电情况下的结构示意简图；
图3是本发明液晶显示模组一优选实施例的结构简图；以及
图4是本发明液晶显示器一优选实施例的结构示意简图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明的一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。
请一并参阅图1和图2，图1是本发明液晶单元一优选实施例极板未通电情况下的结构示意简图；图2是图1实施例中液晶单元极板通电情况下的结构示意简图。该液晶单元包括但不限于以下元件：上基板100、下基板200以及设于上基板100和下基板200之间的量子点材料300和液晶材料400的混合物。
优选地，该量子点材料300包括红色量子点材料和绿色量子点材料(图中未标示区分)。进一步地，绿色量子点材料包括：作为发光核的ZnCdSe2，InP，Cd2SSe中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
而红色量子点材料包括：作为发光核的CdSe，Cd2SeTe，InAs中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。当然，以上仅仅举例出部分量子点材料的成分，本领域技术人员还可以在以上举例材料的引导下，得到其他成分。
优选地，两种量子点材料的总掺杂量占混合物总质量的质量比为0.05～5 wt％。
本实施例中的液晶单元，运用具有荧光特性的R(红)、G(绿)量子点与液晶相混合，在量子点材料表面配体的作用下呈现相对固定的分布，实现量子点材料在液晶盒(cell内)的应用，该技术方案具有双功能性，量子点材料(以下简称QD材料)的引入一方面促成了液晶分子有方向性的排列，起到配向作用，可以取代传统的配向膜结构；另一方面该结构搭配蓝光或白光LED的背光源，可实现色域的提升，提高LCD显示器的色彩表现力；该液晶单元中将量子点与液晶体系相结合，有助于实现QD材料的有效利用，较之常规的QD film以及QD tube技术更为节省材料及制程成本。
本发明所提出的技术方案中QD的配向原理，是通过纳米球体量子材料的引入，利用其表面效应使液晶分子与基板间的范德华力来达到液晶分子间的作用力形成平衡的目的，从而获得液晶分子向同一方向排列的现象和结果；在QD材料发挥配向作用的同时，由于其独特的光学性质，极窄的荧光峰促使其在色域三角中各颜色的坐标更靠近边缘位置，因此从色度学上，QD发光材料的应用，将直观的改善传统LCD显示器色彩相对不够丰富的状况，本发明提出的量子点材料掺杂在液晶盒内液晶材料的结构对于高色域、高色饱显示器件的开发，有着重要的意义。
本发明实施例中的液晶单元将发光QD材料引入液晶体系，其具体的制备过程如下：首先以R、G两种发光量子点材料与负性液晶在液晶清亮点以上的温度(视液晶材料而定，通常在75℃以上)进行混合，两种量子点的总掺杂量占混合物总质量的质量比为0.05～5wt％。
掺杂有QD的液晶材料，可以通过真空灌注或滴下的方式制备如图1所示的液晶盒结构，由于量子点材料表面修饰主要是以极性分子的配位作用为主，因此与液晶分子相接触的是配体部分中烷烃及烯烃的结构，总体呈非极性与液晶分子极性相近，因此由于亲疏水作用，量子点材料会处于贴近上、下基板表面的位置，使液晶分子达到受力平衡状态，呈现均一的配向排列。上述结构在施加驱动电压后，液晶呈现不规则导向水平排列，呈现如图2中的排布形式；撤销电场后，在分子间作用力与范德华力的双重作用下又再次回复到垂直排列(如图1所示的液晶分子排布形式)。
进一步地，本发明实施例还提供一种液晶显示模组，请参阅图3，图3是本发明液晶显示模组一优选实施例的结构简图。该显示模组包括背光单元666以 及上述实施例中所述的液晶单元555。
而在该液晶显示模组的液晶单元555中量子点材料的掺杂量占混合物总质量的质量比在0.05～2wt％之间时，液晶显示模组采用白色光源背光；而量子点材料的掺杂量占混合物总质量的质量比在2～5wt％之间时，液晶显示模组可以采用蓝色光源背光。本发明实施例中的液晶显示模组根据量子点材料掺杂的比例不同，也有着区别化的应用方案，掺杂量较少时搭配传统白背光，掺杂量较大时可搭配蓝色背光并削减彩色滤光膜(CF膜)厚度，在色域与穿透率间寻求平衡，可以达到同样的满足要求的显示效果。而关于液晶模组其他部分结构(包括偏光片、电极、彩色滤光膜等)的技术特征，在本领域技术人员的理解范围之内，此处不再进行详述。
另外，本发明实施例还提供一种液晶显示器，请参阅图4，图4是本发明液晶显示器一优选实施例的结构示意简图。其中，该液晶显示器包括壳体8以及设于壳体8内部的上述实施例中的液晶显示模组。关于液晶显示模组的技术特征请参阅上述实施例中的详细描述，而液晶显示器的其他部分结构技术特征，在本领域技术人员的理解范围内，此处亦不再赘述。
相对于现有技术，本发明提供的液晶显示器、液晶显示模组及其液晶单元，QD(量子点，Quantum Dot)材料的引入一方面促成了液晶分子有方向性的排列，起到配向作用，可以取代传统的配向膜结构；另一方面该液晶单元搭配蓝光(量子点材料掺杂量较大时)或白光LED的背光源，可以实现色域的提升，提高LCD显示器的色彩表现力；该液晶单元中将量子点与液晶体系相结合，有助于实现QD材料的有效利用，较之常规的QD film以及QD tube技术更为节省材料及制程成本。另外，当液晶显示单元搭配蓝光背光时，还可以达到在削减CF膜(Color Filter，彩色滤光膜)的厚度的同时不降低显示效果的目的。
以上所述仅为本发明的部分实施例，并非因此限制本发明的保护范围，凡是利用本发明说明书及附图内容所作的等效装置或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (19)

  1. 一种液晶单元，其特征在于，所述液晶单元包括上基板、下基板以及设于所述上基板和所述下基板之间的量子点材料和液晶材料的混合物，所述量子点材料包括红色量子点材料和绿色量子点材料；所述绿色量子点材料包括：作为发光核的ZnCdSe2，InP，Cd2SSe中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子；所述红色量子点材料包括：作为发光核的CdSe，Cd2SeTe，InAs中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
  2. 根据权利要求1所述的液晶单元，其特征在于，两种量子点材料的总掺杂量占混合物总质量的质量比为0.05～5wt％。
  3. 根据权利要求1所述的液晶单元，其特征在于，所述量子点材料与负性液晶材料在液晶清亮点以上的温度进行混合。
  4. 一种液晶显示模组，其特征在于，所述液晶显示模组包括液晶单元，所述液晶单元包括上基板、下基板以及设于所述上基板和所述下基板之间的量子点材料和液晶材料的混合物。
  5. 根据权利要求4所述的液晶显示模组，其特征在于，所述量子点材料包括红色量子点材料和绿色量子点材料。
  6. 根据权利要求5所述的液晶显示模组，其特征在于，所述绿色量子点材料包括：作为发光核的ZnCdSe2，InP，Cd2SSe中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
  7. 根据权利要求5所述的液晶显示模组，其特征在于，所述红色量子点材料包括：作为发光核的CdSe，Cd2SeTe，InAs中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
  8. 根据权利要求5所述的液晶显示模组，其特征在于，两种量子点材料的总掺杂量占混合物总质量的质量比为0.05～5wt％。
  9. 根据权利要求4所述的液晶显示模组，其特征在于，所述量子点材料与负性液晶材料在液晶清亮点以上的温度进行混合。
  10. 根据权利要求8所述的液晶显示模组，其特征在于，所述量子点材料的掺杂量占混合物总质量的质量比在0.05～2wt％之间时，所述液晶显示模组采用白色光源背光。
  11. 根据权利要求8所述的液晶显示模组，其特征在于，所述量子点材料的掺杂量占混合物总质量的质量比在2～5wt％之间时，所述液晶显示模组采用蓝色光源背光。
  12. 一种液晶显示器，其特征在于，所述液晶显示器包括液晶显示模组，所述液晶显示模组包括液晶单元，所述液晶单元包括上基板、下基板以及设于所述上基板和所述下基板之间的量子点材料和液晶材料的混合物。
  13. 根据权利要求12所述的液晶显示器，其特征在于，所述量子点材料包括红色量子点材料和绿色量子点材料。
  14. 根据权利要求13所述的液晶显示器，其特征在于，所述绿色量子点材料包括：作为发光核的ZnCdSe2，InP，Cd2SSe中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
  15. 根据权利要求13所述的液晶显示器，其特征在于，所述红色量子点材料包括：作为发光核的CdSe，Cd2SeTe，InAs中的一种或多种；作为无机保护壳层的CdS，ZnSe，ZnCdS2，ZnS，ZnO中的一种或多种；以及作为表面配体的R-COOH，R-NH2，R-SH中的一种或多种，其中，R为12～20个碳原子的直链烷烃或烯烃分子。
  16. 根据权利要求13所述的液晶显示器，其特征在于，两种量子点材料的总掺杂量占混合物总质量的质量比为0.05～5wt％。
  17. 根据权利要求12所述的液晶显示器，其特征在于，所述量子点材料与 负性液晶材料在液晶清亮点以上的温度进行混合。
  18. 根据权利要求16所述的液晶显示器，其特征在于，所述量子点材料的掺杂量占混合物总质量的质量比在0.05～2wt％之间时，所述液晶显示模组采用白色光源背光。
  19. 根据权利要求16所述的液晶显示器，其特征在于，所述量子点材料的掺杂量占混合物总质量的质量比在2～5wt％之间时，所述液晶显示模组采用蓝色光源背光。
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Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106226943B (zh) * 2016-10-11 2021-08-31 京东方科技集团股份有限公司 用于制造量子点显示器件的方法以及对应的量子点显示器件
CN106833679A (zh) * 2016-12-08 2017-06-13 上海大学 硒化镉量子点掺杂液晶材料的全息3d显示屏的制备方法
CN107643641A (zh) * 2017-10-31 2018-01-30 武汉华星光电技术有限公司 液晶透镜以及3d显示装置
CN108192418A (zh) * 2017-12-27 2018-06-22 深圳市华星光电技术有限公司 一种量子点墨水制备方法、量子点彩膜基板及其制备方法
CN108203561A (zh) * 2017-12-27 2018-06-26 深圳市华星光电技术有限公司 一种导光板涂层、制备方法及背光模组结构
CN110426890B (zh) * 2019-07-29 2023-03-24 昆山龙腾光电股份有限公司 液晶显示面板以及液晶显示装置
CN113267922A (zh) * 2020-02-17 2021-08-17 广东普加福光电科技有限公司 一种量子点彩色滤光片及其制备方法
CN111458930A (zh) * 2020-03-06 2020-07-28 Tcl华星光电技术有限公司 发光复合膜层、背光模组及显示装置
CN113867041B (zh) * 2021-09-30 2024-08-13 闽都创新实验室 液晶与量子点结合的彩色滤光片显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100208172A1 (en) * 2009-02-17 2010-08-19 Jang Jae-Eun Polymer dispersed display panels including quantum dots and display apparatuses including the same
US20110281388A1 (en) * 2008-11-13 2011-11-17 Hcf Partners, Lp Cross-Linked Quantum Dots and Methods for Producing and Using the Same
CN104662123A (zh) * 2012-07-25 2015-05-27 Qd视光有限公司 制造包括量子点的组分的方法、方法以及产品
CN104698682A (zh) * 2015-03-20 2015-06-10 青岛海信电器股份有限公司 一种模组及液晶显示装置
CN105068296A (zh) * 2015-09-14 2015-11-18 深圳市华星光电技术有限公司 液晶显示装置
CN105097879A (zh) * 2015-07-22 2015-11-25 深圳市华星光电技术有限公司 一种显示面板
CN105242441A (zh) * 2015-11-09 2016-01-13 深圳市华星光电技术有限公司 Pdlc显示装置的制作方法及pdlc显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110281388A1 (en) * 2008-11-13 2011-11-17 Hcf Partners, Lp Cross-Linked Quantum Dots and Methods for Producing and Using the Same
US20100208172A1 (en) * 2009-02-17 2010-08-19 Jang Jae-Eun Polymer dispersed display panels including quantum dots and display apparatuses including the same
CN104662123A (zh) * 2012-07-25 2015-05-27 Qd视光有限公司 制造包括量子点的组分的方法、方法以及产品
CN104698682A (zh) * 2015-03-20 2015-06-10 青岛海信电器股份有限公司 一种模组及液晶显示装置
CN105097879A (zh) * 2015-07-22 2015-11-25 深圳市华星光电技术有限公司 一种显示面板
CN105068296A (zh) * 2015-09-14 2015-11-18 深圳市华星光电技术有限公司 液晶显示装置
CN105242441A (zh) * 2015-11-09 2016-01-13 深圳市华星光电技术有限公司 Pdlc显示装置的制作方法及pdlc显示装置

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