WO2017015988A1 - 一种液晶显示面板及偏光片的制作方法 - Google Patents
一种液晶显示面板及偏光片的制作方法 Download PDFInfo
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- WO2017015988A1 WO2017015988A1 PCT/CN2015/086379 CN2015086379W WO2017015988A1 WO 2017015988 A1 WO2017015988 A1 WO 2017015988A1 CN 2015086379 W CN2015086379 W CN 2015086379W WO 2017015988 A1 WO2017015988 A1 WO 2017015988A1
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- quantum rod
- light
- polarizer
- azo dye
- long axis
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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
-
- 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
- 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
-
- 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
- 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
- G02F2202/00—Materials and properties
- G02F2202/04—Materials and properties dye
-
- 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 liquid crystal display technologies, and in particular, to a liquid crystal display panel and a method for fabricating the polarizer.
- the polarizer is an important component in the liquid crystal display panel.
- the main function is to pass light vibrating in a certain fixed direction, and the light vibrating in other directions is blocked, thereby controlling the polarization direction of the light.
- the polarizer mainly has two types of dyes and iodine.
- the iodine-based polarizer has high transparency and high degree of polarization compared with the dye-based polarizer, but the iodine molecular structure is easily damaged at high temperature and high humidity. Iodine polarizers are less durable.
- the dye-based polarizer has better heat and moisture resistance than the iodine-based polarizer, but its light transmittance is inferior, and even the iodine-based polarizer has a maximum light transmittance of only about 42%.
- An object of the present invention is to provide a liquid crystal display panel and a method for fabricating the polarizer, which solve the technical problem of poor transmittance of the prior polarizer.
- the present invention constructs a method for fabricating a polarizer, which includes:
- the quantum rod comprises a red light quantum rod and a green light quantum rod;
- the surface-treated polarizing layer is immersed in the mixed solution for dyeing and stretching by a wet stretching process; wherein the stretching of the quantum rod and the stretching of the azo dye are performed in the same process;
- the long axis direction of the azo dye molecule and the long axis direction of the quantum rod are deflected to the direction of the tensile force;
- the polarizer comprises a polarizing layer, and the azo dye molecules and the quantum rod both have a long axis.
- the quantum rod further comprises a blue quantum rod
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase light transmittance of the polarizer; wherein the first direction and the quantum rod The long axis direction is parallel.
- a polarizer of the present invention when irradiated with a blue backlight source, light rays perpendicular to the first direction are absorbed by the azo dye molecules to convert the backlight source from unpolarized light to polarized light.
- the first direction is a long axis direction of the azo dye molecule;
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase light transmittance of the polarizer; wherein the first direction and the quantum rod The long axis direction is parallel.
- the red light quantum rod and the green light quantum rod respectively emit red light and green light having a polarization direction under excitation of the blue backlight source, and the blue light
- the color backlight is mixed to form a light source required for color display of the liquid crystal display panel.
- the present invention constructs a liquid crystal display panel, which includes:
- the polarizer on an outer side of the first substrate or the second substrate, the polarizer includes a polarizing layer, and a quantum rod is mixed in a raw material of the polarizing layer to form a mixed material; wherein the quantum rod It is used to increase the light transmittance of the polarizer.
- an azo dye is further mixed in the mixed material of the polarizing layer.
- the polarizer is obtained by dyeing and stretching a mixed material of the polarizing layer, wherein stretching of the quantum rod and stretching of the azo dye are In the same process.
- the color of the backlight source required for the polarizer is blue or white.
- the color of the backlight source required for the polarizer is blue.
- the invention also provides a method for manufacturing a polarizer, which comprises:
- the surface-treated polarizing layer is immersed in the mixed solution for dyeing and stretching by a wet stretching process
- the long axis direction of the azo dye molecule and the long axis direction of the quantum rod are deflected to the direction of the tensile force;
- the polarizer comprises a polarizing layer, and the azo dye molecules and the quantum rod both have a long axis.
- the quantum rod comprises a red light quantum rod, a green light quantum rod, and a blue light quantum rod;
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase light transmittance of the polarizer; wherein the first direction and the quantum rod The long axis direction is parallel.
- the quantum rod comprises a red light quantum rod and a green light quantum rod
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase light transmittance of the polarizer; wherein the first direction and the quantum rod The long axis direction is parallel.
- the red light quantum rod and the green light quantum rod respectively emit red light and green light having a polarization direction under excitation of the blue backlight source, and the blue light
- the color backlight is mixed to form a light source required for color display of the liquid crystal display panel.
- the stretching of the quantum rod and the stretching of the azo dye are carried out in the same process.
- the first substrate is a color filter substrate
- the second substrate is an array substrate
- the quantum rod is mixed in the material of the polarizing layer, and the optical anisotropy of the quantum rod is utilized to improve the transmittance of the polarizer and to improve the color saturation of the liquid crystal display panel. And color gamut.
- FIG. 1 is a schematic structural view of a polarizer of the present invention
- FIG. 2 is a schematic view showing the structure of an azo dye and a quantum rod in the stretching process of the present invention
- FIG. 3 is a schematic view of a conventional polarizer when it is illuminated by a backlight source
- FIG. 4 is a schematic view of a polarizer of the first structure of the present invention when illuminated by a backlight source;
- Fig. 5 is a schematic view showing the polarizer of the second structure of the present invention illuminated by a backlight source.
- FIG. 1 is a schematic structural view of a polarizer of the present invention.
- the liquid crystal display panel of the present invention includes: a first substrate, a second substrate, a liquid crystal layer, and a polarizer; the second substrate is disposed opposite to the first substrate; the liquid crystal layer is located on the first substrate and the first Between the two substrates; and the polarizer is located outside the first substrate or the second substrate (the side away from the liquid crystal layer).
- the first substrate is, for example, a color film substrate
- the second substrate is, for example, an array substrate.
- the polarizer of the present invention comprises a special film 11 , an adhesive layer 12 , a first supporting layer 13 , a polarizing layer 14 , The second support layer 15, the surface treatment layer 16, and the protective film 17.
- a quantum rod is mixed in the original material of the polarizing layer 14, wherein the original material of the polarizing layer 14 may be polyvinyl alcohol; the quantum rod forms a mixed material with polyvinyl alcohol; wherein the quantum rod is used for improving The light transmittance of the polarizer.
- a quantum rod is a nanomaterial composed of a finite number of semiconductor atoms.
- the difference from a quasi-zero-dimensional quantum dot material is that the quantum rod is much larger in one direction than the other two and belongs to a one-dimensional material.
- the anisotropy in the quantum rod structure causes the optical rod material to have optical anisotropy.
- Optical anisotropy refers to the absorption of light in the direction of the long axis of the quantum rod, and the emission intensity is greater than the absorption and emission intensity perpendicular to the direction perpendicular to the long axis of the quantum rod. Therefore, the quantum rod is added to the raw material of the polarizer, and the optical anisotropy of the quantum rod can effectively improve the transmittance of the liquid crystal display panel, thereby saving energy and cost.
- FIG. 4 is a schematic diagram of the polarizer of the first structure of the present invention when the backlight source is illuminated;
- the method for fabricating the polarizer of the first structure of the present invention is as follows:
- the quantum rod comprises a red light quantum rod 22, a blue light quantum rod 23, and a green light quantum rod 24;
- the azo dye molecules and the quantum rods have a long axis, as shown in FIG. 2, the direction of the tensile force is, for example, a transverse direction, and after the stretching, the azo dye molecules 21 and The long axes of the quantum rods 22-24 are arranged in a lateral direction.
- the backlight source 30 includes light 31 perpendicular to the long axis direction of the azo dye molecules 21, and rays 32 parallel to the long axis direction of the azo dye molecules 21;
- the light of the backlight source that is illuminated on the polarizer, the right side of Figure 3 shows the light after the polarizer treatment.
- the stretched azo dye molecule 21 absorbs light 31 perpendicular to the long axis direction of the azo dye molecule 21, The light ray 32 parallel to the long axis direction of the azo dye molecule 21 is not absorbed.
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase a light transmittance of the polarizer; wherein the first direction is The long axis directions of the quantum rods are parallel.
- the polarizer 41 of the present invention is also mixed with quantum rods 22-24.
- the quantum rod converts a portion of the light 31 perpendicular to the long-axis direction of the azo dye molecule 21 into light parallel to the long-axis direction of the azo dye molecule 21, passing through the backlight source.
- the emitted light is as shown in the right part of FIG.
- the quantum rod of the present invention comprises quantum rods of three colors
- the color of the backlight source can be blue or white, and under the excitation of the backlight source, three colors of light can be generated, which can meet the requirements for color display of the liquid crystal display panel.
- Light source Due to the addition of a plurality of spectral quantum rods, the spectral distribution of the backlight source can be readjusted, thereby improving the color saturation and color gamut of the liquid crystal display panel.
- FIG. 5 is a schematic diagram of a polarizer of the second structure of the present invention when the backlight source is illuminated;
- the method for fabricating the polarizer of the second structure of the present invention is as follows:
- the quantum rod comprises a red light quantum rod 22, a green light quantum rod 24;
- the azo dye molecules and the quantum rods have a long axis, as shown in FIG. 2, the direction of the tensile force is, for example, a transverse direction, and after the stretching, the azo dye molecules 21 and The long axes of the quantum rods 22-24 are arranged in a lateral direction.
- the backlight source 30 includes light 31 perpendicular to the long axis direction of the azo dye molecules 21, and rays 32 parallel to the long axis direction of the azo dye molecules 21;
- the light of the backlight source that is illuminated on the polarizer, the right side of Figure 3 shows the light after the polarizer treatment.
- the azo dye has dichroism, and the stretched azo dye molecule 21 absorbs the long axis of the azo dye molecule 21.
- the light 31 is perpendicular to the direction, and the light 32 parallel to the long axis direction of the azo dye molecule 21 is not absorbed.
- the quantum rod converts a portion of the light perpendicular to the first direction into light parallel to the first direction to increase light transmittance of the polarizer; wherein the first direction is The long axis directions of the quantum rods are parallel.
- the polarizer 41 of the present invention is further mixed with quantum rods 22, 24.
- the quantum rod converts a portion of the light 31 perpendicular to the long-axis direction of the azo dye molecule 21 into light parallel to the long-axis direction of the azo dye molecule 21, passing through the backlight source.
- the emitted light is as shown in the right part of FIG.
- the color of the backlight source may be blue, and the red light quantum rod and the green light quantum rod respectively emit red with polarization directions under excitation of the blue backlight source.
- the light source and the green light are mixed with the blue backlight to form a light source required for color display of the liquid crystal display panel. Due to the addition of a plurality of spectral quantum rods, the spectral distribution of the backlight source can be readjusted, thereby improving the color saturation and color gamut of the liquid crystal display panel.
- an azo dye is further mixed in the mixed material of the polarizing layer.
- the azo dye enables the polarizer to convert a backlight source from unpolarized light to polarized light.
- the polarizer is obtained by dyeing and stretching a mixed material of the polarizing layer, wherein stretching of the quantum rod and stretching of the azo dye are performed in the same process.
- stretching of the existing quantum rods and the stretching of the azo dyes are carried out in different processes.
- the red light quantum rod, the green light quantum rod, and the blue light quantum rod are mixed in the original material of the polarizer; the color of the backlight source required for the polarizer is blue or white.
- the color of the backlight source required for the polarizer is blue.
- the transmittance of the polarizer is improved, and the color saturation of the liquid crystal display panel is improved.
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Abstract
一种液晶显示面板及偏光片(41)的制作方法,所述面板包括:第一基板;第二基板;液晶层,位于所述第一基板和所述第二基板之间;以及偏光片(41),位于所述第一基板或所述第二基板的外侧,所述偏光片(41)包括偏光层(14),在所述偏光层(14)的原始材料中混合有量子棒(22,23,24),以形成混合材料;所述量子棒(22,23,24)用于提高所述偏光片(41)的光线穿透率。
Description
本发明涉及液晶显示器技术领域,特别是涉及一种液晶显示面板及偏光片的制作方法。
偏光片是液晶显示面板中的重要组成部分,主要作用是使沿某一固定方向振动的光通过,而使其他方向振动的光被阻拦,从而控制光线的偏振方向。偏光片主要有染料系和碘系两大类,碘系偏光片相比于染料系偏光片具有高透过、高偏振度等优点,但由于碘分子结构在高温高湿时易受破坏,致使碘系偏光片的耐用性较差。染料系偏光片相比碘系偏光片具有更好的耐热耐湿性,但同其光线透过率较差,即使是碘系偏光片得最高光线透过率也只有42%左右。
因此,有必要提供一种液晶显示面板及偏光片的制作方法,以解决现有技术所存在的问题。
本发明的目的在于提供一种液晶显示面板及偏光片的制作方法,以解决现有偏光片透光率较差的技术问题。
为解决上述技术问题,本发明构造了一种偏光片的制作方法,其包括:
将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;所述量子棒包括红光量子棒、绿光量子棒;
采用湿式延伸工艺将经过表面处理后的偏光层浸泡在所述混合溶液中进行染色与拉伸;其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的;
经过所述拉伸后,所述偶氮染料分子的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;
其中所述偏光片包括偏光层,所述偶氮染料分子与所述量子棒都具有长轴。
在本发明的偏光片的制作方法中,所述量子棒还包括蓝光量子棒;
使用蓝色或者白色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
在本发明的偏光片的制作方法中,使用蓝色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
在本发明的偏光片的制作方法中,所述红光量子棒、所述绿光量子棒在所述蓝色背光光源的激发下,分别发出具有偏振方向的红色光与绿色光,并与所述蓝色背光混合后形成所述液晶显示面板进行彩色显示所需的光源。
为解决上述技术问题,本发明构造了一种液晶显示面板,其包括:
第一基板;
第二基板,与所述第一基板相对设置;
液晶层,位于所述第一基板和所述第二基板之间;以及
偏光片,位于所述第一基板或所述第二基板的外侧,所述偏光片包括偏光层,在所述偏光层的原始材料中混合有量子棒,以形成混合材料;其中所述量子棒用于提高所述偏光片的光线穿透率。
在本发明的液晶显示面板中,所述偏光层的混合材料中还混合有偶氮染料。
在本发明的液晶显示面板中,所述偏光片是通过对所述偏光层的混合材料进行染色与拉伸得到的,其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的。
在本发明的液晶显示面板中,当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒、蓝光量子棒时;所述偏光片所需的背光光源的颜色为蓝色或者白色。
在本发明的液晶显示面板中,当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒时;所述偏光片所需的背光光源的颜色为蓝色。
本发明还提供一种偏光片的制作方法,其包括:
将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;
采用湿式延伸工艺将经过表面处理后的偏光层浸泡在所述混合溶液中进行染色与拉伸;
经过所述拉伸后,所述偶氮染料分子的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;
其中所述偏光片包括偏光层,所述偶氮染料分子与所述量子棒都具有长轴。
在本发明的偏光片的制作方法中,所述量子棒包括红光量子棒、绿光量子棒、蓝光量子棒;
使用蓝色或者白色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
在本发明的偏光片的制作方法中,所述量子棒包括红光量子棒、绿光量子棒;
使用蓝色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
在本发明的偏光片的制作方法中,所述红光量子棒、所述绿光量子棒在所述蓝色背光光源的激发下,分别发出具有偏振方向的红色光与绿色光,并与所述蓝色背光混合后形成所述液晶显示面板进行彩色显示所需的光源。
在本发明的偏光片的制作方法中,所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的。
在本发明的偏光片的制作方法中,所述第一基板为彩膜基板,所述第二基板为阵列基板。
本发明的液晶显示面板及偏光片的制作方法,通过在偏光层的材料中混合量子棒,并利用量子棒光学各向异性,提高偏光片的穿透率,以及提高液晶显示面板的色饱和度和色域。
图1为本发明的偏光片的结构示意图;
图2为本发明的偶氮染料与量子棒在拉伸过程中的结构示意图;
图3为现有偏光片在背光光源照射时的示意图;
图4为本发明第一种结构的偏光片的在背光光源照射时的示意图;
图5为本发明第二种结构的偏光片的在背光光源照射时的示意图。
以下各实施例的说明是参考附加的图式,用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语,例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本发明,而非用以限制本发明。在图中,结构相似的单元是以相同标号表示。
请参照图1,图1为本发明的偏光片的结构示意图。
本发明的液晶显示面板包括:第一基板、第二基板、液晶层、偏光片;所述第二基板与所述第一基板相对设置;所述液晶层位于所述第一基板和所述第二基板之间;以及所述偏光片位于所述第一基板或所述第二基板的外侧(远离液晶层的一侧)。
所述第一基板譬如为彩膜基板、第二基板譬如为阵列基板,如图1所示,本发明的偏光片包括异型胶膜11、粘着层12、第一支持层13、偏光层14、第二支持层15、表面处理层16、保护膜17。在所述偏光层14的原始材料中混合有量子棒,其中所述偏光层14的原始材料可为聚乙烯醇;所述量子棒与聚乙烯醇形成混合材料;其中所述量子棒用于提高所述偏光片的光线穿透率。
量子棒是一种由有限个半导体原子组成的纳米材料,与准零维量子点材料区别在于,量子棒在某一方向上的尺寸远大于其他两个方向,属于一维材料。量子棒结构上的各向异性造成了量子棒材料具有光学上的各向异性。光学各向异性是指量子棒的长轴方向对光的吸收、发射强度大于垂直于量子棒的长轴的方向的吸收、发射强度。因此在偏光片的原材料中加入量子棒,利用量子棒的光学各向异性特性,可有效提高液晶显示面板的穿透率,节省能源和成本。
请参照图4,图4为本发明第一种结构的偏光片的在背光光源照射时的示意图;
本发明第一种结构的偏光片的制作方法为以下:
S101、将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;所述量子棒包括红光量子棒22、蓝光量子棒23、绿光量子棒24;
S102、采用湿式延伸工艺将经过表面处理后的偏光层浸泡在所述混合溶液中进行染色与拉伸;
S103、经过所述拉伸后,所述偶氮染料的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;
其中所述偶氮染料分子与所述量子棒都具有长轴,譬如图2所示,所述拉伸作用力的方向譬如为横向,经过所述拉伸后,所述偶氮染料分子21和所述量子棒22-24的长轴与沿横向排列。
S104、使用蓝色或者背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
如图3所示,背光光源30包括与所述偶氮染料分子21的长轴方向垂直的光31,以及与所述偶氮染料分子21的长轴方向平行的光线32;图3左侧表示照射在偏光片上的背光光源的光线,图3右侧表示经过偏光片处理以后的光线。在偏光片20中只有偶氮染料时,由于偶氮染料具有二向色性,被拉伸后的偶氮染料分子21吸收了与所述偶氮染料分子21的长轴方向垂直的光31,而与所述偶氮染料分子21的长轴方向平行的光线32不被吸收。
S105、所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
如图4所示,而本发明的偏光片41还混合有量子棒22-24。在步骤S104的基础上,所述量子棒使得与所述偶氮染料分子21的长轴方向垂直的部分光31转换为与所述偶氮染料分子21的长轴方向平行的光线,经过背光光源的光线经过所述偏光片的处理后,出射的光线如图4右侧部分所示。
对比图3和图4,由于现有偏光片仅有所述偶氮染料,因此使得垂直方向的光被吸收,透过偏光层的光线强度会大幅减弱;而本发明的偏光片中,具体在所述偏光层中还加入有量子棒,使得原本被吸收的部分光线转换为可以透过偏光片的光线,光线强度增强,因此提高了面板的穿透率。
由于本发明的量子棒包括三种颜色的量子棒,因此背光光源的颜色可以为蓝色或者白色,在背光光源的激发下,可以产生3色光,能够满足所述液晶显示面板进行彩色显示所需的光源。由于多种光谱量子棒的加入,还能重新调整背光光源的频谱分布,从而提高液晶显示面板的色饱和度与色域。
请参照图5,图5为本发明第二种结构的偏光片的在背光光源照射时的示意图;
本发明第二种结构的偏光片的制作方法为以下:
S201、将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;所述量子棒包括红光量子棒22、绿光量子棒24;
S202、采用湿式延伸工艺将经过表面处理后的偏光层42浸泡在所述混合溶液中进行染色与拉伸;
S203、经过所述拉伸后,所述偶氮染料的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;
其中所述偶氮染料分子与所述量子棒都具有长轴,譬如图2所示,所述拉伸作用力的方向譬如为横向,经过所述拉伸后,所述偶氮染料分子21和所述量子棒22-24的长轴与沿横向排列。
S204、使用蓝色或者背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;
如图3所示,背光光源30包括与所述偶氮染料分子21的长轴方向垂直的光31,以及与所述偶氮染料分子21的长轴方向平行的光线32;图3左侧表示照射在偏光片上的背光光源的光线,图3右侧表示经过偏光片处理以后的光线。如图3所示,在偏光片20中只有偶氮染料时,由偶氮染料具有二向色性,被拉伸后的偶氮染料分子21吸收了与所述偶氮染料分子21的长轴方向垂直的光31,而与所述偶氮染料分子21的长轴方向平行的光线32不被吸收。
S205、所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
如图5所示,而本发明的偏光片41还混合有量子棒22、24。在步骤S204的基础上,所述量子棒使得与所述偶氮染料分子21的长轴方向垂直的部分光31转换为与所述偶氮染料分子21的长轴方向平行的光线,经过背光光源的光线经过所述偏光片的处理后,出射的光线如图5右侧部分所示。
对比图3和图5,由于现有偏光片仅有所述偶氮染料,因此使得垂直方向的光被吸收,透过偏光层的光线强度会大幅减弱;而本发明的偏光片中,具体在所述偏光层中还加入有量子棒,使得原本被吸收的部分光线转换为可以透过偏光片的光线,光线强度增强,因此提高了面板的穿透率。
由于本发明的量子棒包括二种颜色的量子棒,因此背光光源的颜色可以为蓝色,所述红光量子棒、所述绿光量子棒在蓝色背光光源的激发下分别发出具有偏振方向的红色光与绿色光,并与所述蓝色背光混合后形成所述液晶显示面板进行彩色显示所需的光源。由于多种光谱量子棒的加入,还能重新调整背光光源的频谱分布,从而提高液晶显示面板的色饱和度与色域。
优选地,在所述偏光层的混合材料中还混合有偶氮染料。所述偶氮染料能够使得所述偏光片将背光光源由非偏振光转换为偏振光。
优选地,所述偏光片是通过对所述偏光层的混合材料进行染色与拉伸得到的,其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的。而现有的量子棒的拉伸与偶氮染料的拉伸是在不同的制程中进行的,本发明通过将上述过程在同一制程中进行,可以简化制程程序,节省生产成本。
优选地,当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒、蓝光量子棒时;所述偏光片所需的背光光源的颜色为蓝色或者白色。
优选地,当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒时;所述偏光片所需的背光光源的颜色为蓝色。
本发明的液晶显示面板及偏光片的制作方法,通过在偏光层的材料中混合量子棒,利用量子棒光学各向异性,提高偏光片的穿透率,以及提高液晶显示面板的色饱和度和色域。
综上所述,虽然本发明已以优选实施例揭露如上,但上述优选实施例并非用以限制本发明,本领域的普通技术人员,在不脱离本发明的精神和范围内,均可作各种更动与润饰,因此本发明的保护范围以权利要求界定的范围为准。
Claims (15)
- 一种偏光片的制作方法,其包括:将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;所述量子棒包括红光量子棒、绿光量子棒;采用湿式延伸工艺将经过表面处理后的偏光层浸泡在所述混合溶液中进行染色与拉伸;其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的;经过所述拉伸后,所述偶氮染料分子的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;其中所述偏光片包括偏光层,所述偶氮染料分子与所述量子棒都具有长轴。
- 根据权利要求1所述的偏光片的制作方法,其中所述量子棒还包括蓝光量子棒;使用蓝色或者白色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
- 根据权利要求1所述的偏光片的制作方法,其中使用蓝色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
- 根据权利要求3所述的偏光片的制作方法,其中所述红光量子棒、所述绿光量子棒在所述蓝色背光光源的激发下,分别发出具有偏振方向的红色光与绿色光,并与所述蓝色背光混合后形成所述液晶显示面板进行彩色显示所需的光源。
- 一种液晶显示面板,其包括:第一基板;第二基板,与所述第一基板相对设置;液晶层,位于所述第一基板和所述第二基板之间;以及偏光片,位于所述第一基板或所述第二基板的外侧,所述偏光片包括偏光层,在所述偏光层的原始材料中混合有量子棒,以形成混合材料;其中所述量子棒用于提高所述偏光片的光线穿透率。
- 根据权利要求5所述的液晶显示面板,其中所述偏光层的混合材料中还混合有偶氮染料。
- 根据权利要求6所述的液晶显示面板,其中所述偏光片是通过对所述偏光层的混合材料进行染色与拉伸得到的,其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的。
- 根据权利要求5所述的液晶显示面板,其中当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒、蓝光量子棒时;所述偏光片所需的背光光源的颜色为蓝色或者白色。
- 根据权利要求5所述的液晶显示面板,其中当所述偏光片的原始材料中混合有红光量子棒、绿光量子棒时;所述偏光片所需的背光光源的颜色为蓝色。
- 一种偏光片的制作方法,其包括:将量子棒与偶氮染料的溶液按预设比例混合,以形成混合溶液;采用湿式延伸工艺将经过表面处理后的偏光层浸泡在所述混合溶液中进行染色与拉伸;经过所述拉伸后,所述偶氮染料分子的长轴方向与所述量子棒的长轴方向偏转至所述拉伸作用力的方向上;其中所述偏光片包括偏光层,所述偶氮染料分子与所述量子棒都具有长轴。
- 根据权利要求10所述的偏光片的制作方法,其中所述量子棒包括红光量子棒、绿光量子棒、蓝光量子棒;使用蓝色或者白色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
- 根据权利要求10所述的偏光片的制作方法,其中所述量子棒包括红光量子棒、绿光量子棒;使用蓝色背光光源照射时,与第一方向垂直的光线被所述偶氮染料分子吸收,以使所述背光光源由非偏振光转换为偏振光,所述第一方向为所述偶氮染料分子的长轴方向;所述量子棒使得与所述第一方向垂直的部分光线转换为与所述第一方向平行的光,以提高所述偏光片的光线穿透率;其中所述第一方向与所述量子棒的长轴方向平行。
- 根据权利要求12所述的偏光片的制作方法,其中所述红光量子棒、所述绿光量子棒在所述蓝色背光光源的激发下,分别发出具有偏振方向的红色光与绿色光,并与所述蓝色背光混合后形成所述液晶显示面板进行彩色显示所需的光源。
- 根据权利要求10所述的偏光片的制作方法,其中所述量子棒的拉伸与所述偶氮染料的拉伸是在同一制程中进行的。
- 根据权利要求10所述的偏光片的制作方法,其中所述第一基板为彩膜基板,所述第二基板为阵列基板。
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| CN105093661B (zh) | 2015-09-09 | 2017-12-05 | 深圳市华星光电技术有限公司 | 一种偏光片 |
| CN105403946A (zh) * | 2016-01-04 | 2016-03-16 | 京东方科技集团股份有限公司 | 偏光片及其制备方法、显示面板和显示装置 |
| CN106842686A (zh) * | 2017-03-24 | 2017-06-13 | 惠科股份有限公司 | 显示面板和显示面板的制程 |
| CN107092138A (zh) * | 2017-06-28 | 2017-08-25 | 深圳Tcl新技术有限公司 | 液晶显示面板和液晶显示装置 |
| CN107861283A (zh) * | 2017-09-18 | 2018-03-30 | 合肥惠科金扬科技有限公司 | 一种量子点液晶显示装置的量子点偏光片组件 |
| CN107783338A (zh) * | 2017-09-18 | 2018-03-09 | 合肥惠科金扬科技有限公司 | 一种量子点液晶显示装置 |
| CN109917587B (zh) * | 2019-03-26 | 2020-10-30 | 深圳市华星光电技术有限公司 | 液晶显示装置及其制作方法 |
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| CN103091892A (zh) * | 2011-10-28 | 2013-05-08 | 乐金显示有限公司 | 液晶显示装置 |
| CN103135281A (zh) * | 2011-11-28 | 2013-06-05 | 乐金显示有限公司 | 液晶显示装置 |
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| JP4411078B2 (ja) * | 2001-10-24 | 2010-02-10 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | 半導体液晶組成物及びその製造方法 |
| KR100745751B1 (ko) * | 2005-04-20 | 2007-08-02 | 삼성전자주식회사 | 자발광 lcd |
| KR20070107498A (ko) * | 2006-05-03 | 2007-11-07 | 삼성전자주식회사 | 단일 편광기를 사용하는 자발광형 액정표시장치 |
| US20100279125A1 (en) * | 2009-04-29 | 2010-11-04 | Kent State University | Film comprising substrate-free polymer dispersed liquid crystal; fiber, fabric, and device thereof; and methods thereof |
| US11421046B2 (en) * | 2011-10-26 | 2022-08-23 | Brandeis University | Aligned arrays of nanorods, and methods of making and using them |
| KR102081603B1 (ko) * | 2013-11-28 | 2020-02-26 | 엘지디스플레이 주식회사 | 양자막대 및 이를 포함하는 액정표시장치 |
| US9719639B2 (en) * | 2013-12-20 | 2017-08-01 | Apple Inc. | Display having backlight with narrowband collimated light sources |
| JP6683632B2 (ja) * | 2014-06-26 | 2020-04-22 | イッサム リサーチ ディベロップメント カンパニー オブ ザ ヘブライ ユニバーシティー オブ エルサレム リミテッドYissum Research Development Company Of The Hebrew Universty Of Jerusalem Ltd. | 改善された光アウトカップリングを具備する放出膜 |
| TWI581017B (zh) * | 2014-09-30 | 2017-05-01 | 鴻海精密工業股份有限公司 | 顏色轉換膜、使用顏色轉換膜的顯示裝置及製造該顏色轉換膜的方法 |
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2015
- 2015-07-24 CN CN201510442819.8A patent/CN105158960B/zh active Active
- 2015-08-07 US US14/778,748 patent/US20170219878A1/en not_active Abandoned
- 2015-08-07 WO PCT/CN2015/086379 patent/WO2017015988A1/zh not_active Ceased
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| CN103091892A (zh) * | 2011-10-28 | 2013-05-08 | 乐金显示有限公司 | 液晶显示装置 |
| CN103135281A (zh) * | 2011-11-28 | 2013-06-05 | 乐金显示有限公司 | 液晶显示装置 |
| US20150009440A1 (en) * | 2013-07-02 | 2015-01-08 | Samsung Display Co., Ltd. | Display device |
| CN104749680A (zh) * | 2015-03-19 | 2015-07-01 | 明基材料有限公司 | 偏光板 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105158960B (zh) | 2018-06-29 |
| US20170219878A1 (en) | 2017-08-03 |
| CN105158960A (zh) | 2015-12-16 |
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