WO2021003847A1 - 背光模块及其透光率的调控方法 - Google Patents

背光模块及其透光率的调控方法 Download PDF

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Publication number
WO2021003847A1
WO2021003847A1 PCT/CN2019/107185 CN2019107185W WO2021003847A1 WO 2021003847 A1 WO2021003847 A1 WO 2021003847A1 CN 2019107185 W CN2019107185 W CN 2019107185W WO 2021003847 A1 WO2021003847 A1 WO 2021003847A1
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Prior art keywords
liquid crystal
crystal layer
dispersed liquid
polymer dispersed
backlight module
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PCT/CN2019/107185
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English (en)
French (fr)
Inventor
池宝林
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Tcl华星光电技术有限公司
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Priority to US16/620,531 priority Critical patent/US20210294134A1/en
Publication of WO2021003847A1 publication Critical patent/WO2021003847A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals

Definitions

  • the present invention relates to the field of displays, in particular to a backlight module and its light transmittance control method and display.
  • the size of the TV display panel has been changed from the market demand of 32 inches and 55 inches to 43 inches and 65 inches, and the specifications are constantly upgraded. Terminal requirements for products have also been continuously improved.
  • Most of the existing displays have color shifts. The color shifts are mainly caused by different viewing angles when the backlight passes through a liquid crystal display (LCD) and the amount of light emitted is different under different viewing angles.
  • LCD liquid crystal display
  • the present invention provides a new backlight module and its light transmittance control method and display, using a polymer dispersed liquid crystal layer (PLCD) between the liquid crystal display (LCD) and the backlight (BL) The way to correct the difference in brightness and chromaticity between oblique viewing angle and vertical viewing angle. According to different viewing angles, the polymerization direction of the PDLC polymer is controlled, and then the correction direction is adjusted to improve the viewing taste of the oblique viewing angle.
  • PLCD polymer dispersed liquid crystal layer
  • the present invention provides a backlight module, including: a substrate; a backlight source disposed on the substrate; and a polymer dispersed liquid crystal layer disposed above the backlight source, wherein The polymer dispersed liquid crystal layer has at least two different polymerization directions, so as to narrow the gap between the light output of the oblique viewing angle and the light output of the vertical viewing angle.
  • the present invention also provides a display including a backlight module, wherein the backlight module includes: a substrate; a backlight source disposed on the substrate; and a polymer dispersed liquid crystal layer disposed on Above the backlight, the polymer dispersed liquid crystal layer has at least two different polymerization directions, so as to narrow the gap between the light output of the oblique viewing angle and the light output of the vertical viewing angle.
  • the present invention further provides a method for adjusting the light transmittance of a backlight module, which includes the following steps:
  • S10 provides polymer dispersed liquid crystal layer
  • S20 performs first UV irradiation on the polymer dispersed liquid crystal layer to polymerize part of the polymer in the polymer dispersed liquid crystal layer in the first direction;
  • S40 Prepare a backlight module, wherein the backlight module includes: a substrate; a backlight source disposed on the substrate; and the polymer dispersed liquid crystal layer disposed above the backlight source.
  • the present invention also provides a display including the above-mentioned backlight module.
  • the display further includes a liquid crystal layer disposed above the backlight module, wherein the polymer dispersed liquid crystal layer is disposed between the backlight source and the liquid crystal layer.
  • the polymer dispersed liquid crystal layer has a multi-layer structure or a single-layer structure.
  • the backlight module further includes an optical function layer disposed above the polymer dispersed liquid crystal layer, wherein the optical function layer has a multilayer structure or a single layer structure, and includes a brightness enhancement film.
  • the backlight source includes a single light source, multiple light emitting diodes, or multiple micro light emitting diodes.
  • the present invention provides a new backlight module and its light transmittance control method, which uses a method of adding a polymer dispersed liquid crystal layer (PLCD) between the liquid crystal display (LCD) and the backlight (BL) to correct the oblique The difference in brightness and chromaticity between viewing angle and vertical viewing angle. According to different viewing angles, the polymerization direction of the PDLC polymer is controlled, and then the correction direction is adjusted to improve the viewing taste of the oblique viewing angle.
  • PLCD polymer dispersed liquid crystal layer
  • FIG. 1 is a schematic diagram of a backlight module according to an embodiment of the invention.
  • FIG. 2 is a flowchart of a method for adjusting and controlling the light transmittance of a backlight module according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a display according to an embodiment of the invention.
  • the present invention provides a new backlight module and its light transmittance control method and display, which use a layer of polymer dispersed liquid crystal between the liquid crystal display (LCD) and the backlight (BL)
  • the PLCD method compensates the difference in brightness and chromaticity between the oblique viewing angle and the vertical viewing angle. According to different viewing angles, the polymerization direction of the PDLC polymer is controlled, and then the correction direction is adjusted to improve the viewing taste of the oblique viewing angle.
  • FIG. 1 is a schematic diagram of a backlight module according to an embodiment of the invention.
  • 2 is a flowchart of a method for adjusting and controlling the light transmittance of a backlight module according to an embodiment of the present invention.
  • the present invention provides a backlight module 100, including: a substrate 10; a backlight source 20 disposed on the substrate 10; and a polymer dispersed liquid crystal layer 30 disposed on Above the backlight source 20, the polymer dispersed liquid crystal layer 30 has at least two different polymerization directions, so as to reduce the difference between the amount of light emitted at an oblique viewing angle and that at a vertical viewing angle.
  • the 30 layer of the polymer dispersed liquid crystal layer has no effect on the light in the vertical direction, and can make the light in the oblique direction more uniform (shown by the arrow in FIG. 1) to achieve the same light as the vertical direction. If a special viewing angle is required, by adjusting the polymer arrangement direction of the polymer dispersed liquid crystal layer 302 and the direction of the liquid crystal layer of the polymer dispersed liquid crystal layer 302, the display brightness of the backlight source 20 can be adjusted to improve the viewing angle.
  • the present invention further provides a method for adjusting the light transmittance of the backlight module 100, including the following steps:
  • S10 provides a polymer dispersed liquid crystal layer 30
  • S20 performs first UV irradiation on the polymer dispersed liquid crystal layer 30 to polymerize part of the polymer in the polymer dispersed liquid crystal layer 30 in a first direction;
  • S30 Perform a second UV on the polymer dispersed liquid crystal layer 30 to polymerize part of the polymer in the polymer dispersed liquid crystal layer 30 in the second direction, so that the polymer dispersed liquid crystal layer 30 has at least two phases Different convergence directions to narrow the gap between the amount of light emitted from oblique viewing angles and the amount of light emitted from vertical viewing angles; and
  • the backlight module 100 includes: a substrate 10; a backlight source 20 disposed on the substrate 10; and the polymer dispersed liquid crystal layer 30 disposed above the backlight source 20.
  • FIG. 3 is a schematic diagram of a display according to an embodiment of the invention. Referring to FIG. 3, specifically, the present invention also provides a display 1 including the aforementioned backlight module 100.
  • the display 1 further includes a liquid crystal layer 40 disposed above the backlight module 100, wherein the polymer dispersed liquid crystal layer 30 is disposed on the backlight source 20 and Between the liquid crystal layer 40.
  • the polymer dispersed liquid crystal layer 30 has a multi-layer structure or a single-layer structure.
  • the backlight module 100 further includes an optical function layer 50 disposed above the polymer dispersed liquid crystal layer 30, wherein the optical function layer 50 has a multi-layer structure or a single-layer structure, including a Brightening film (not shown).
  • the backlight source 20 includes a single light source, multiple light emitting diodes, or multiple micro light emitting diodes, as shown in FIG. 2.
  • the present invention provides a new backlight module and its light transmittance control method, which uses a method of adding a polymer dispersed liquid crystal layer (PLCD) between the liquid crystal display (LCD) and the backlight (BL), Correct the difference in brightness and chromaticity between oblique viewing angle and vertical viewing angle. According to different viewing angles, the polymerization direction of the PDLC polymer is controlled, and then the correction direction is adjusted to improve the viewing taste of the oblique viewing angle.
  • PLCD polymer dispersed liquid crystal layer

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模块(100)及其透光率的调控方法和显示器(1)，背光模块(100)包括：基板(10)；背光源(20)，配置于基板(10)上；以及聚合物分散液晶层(30)，配置于背光源(20)上方，其中，聚合物分散液晶层(30)具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。

Description

背光模块及其透光率的调控方法 技术领域
本发明涉及一种显示器领域，尤其涉及一种背光模块及其透光率的调控方法和显示器。
 背景技术
随着液晶面板的行业的发展，尺寸在不断变大，技术及规格要求也不断更新，电视显示面板尺寸已由32寸和55寸的市场需求变更为43寸和65寸，规格也不断升级，终端对产品的要求也不断提高。大部分现有的显示器存在色偏现象，色偏的发生主要是因为不同视角下，背光源透过液晶显示器(LCD)，在不同视角的出光量下不同导致的。
过去为了改善色偏问题，利用改善偏光片(POL)与LCD的搭配，以保证POL与LCD透过光的延迟量一致；以及减小LCD延迟量以减小光的传播差异，进而保证不同视角下的透光量一致等手段。然而针对色偏问题，由于不同厂家对规格的要求益发多样性且益趋严格，现有面板技术受到挑战。
 技术问题
据此，为更完美的避免色偏的发生，亟需一种背光模块及其透光率的调控方法和显示器，实现在不同视角下的透光量一致。
 技术解决方案
有鉴于此，本发明提供一种新的背光模块及其透光率的调控方法和显示器，利用在液晶显示器(LCD)与背光源(BL)之间增加一层聚合物分散液晶层(PLCD)的方式，补正斜向视角与垂直视角的亮度及色度的差异。依据不同的视角，控制PDLC的聚合物的聚合方向，进而调控补正的方向，以改善斜向视角的观赏品味。
据此，依据本发明的一实施例，本发明提供了一种背光模块，包括：基板；背光源，配置于所述基板上；以及聚合物分散液晶层，配置于所述背光源上方，其中，所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。
依据本发明的另一实施例，本发明还提供了一种显示器包括一背光模块，其中所述背光模块包括：基板；背光源，配置于所述基板上；以及聚合物分散液晶层，配置于所述背光源上方，其中，所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。
依据本发明的一实施例，本发明另提供一种背光模块透光率的调控方法，包括以下步骤：
S10 提供聚合物分散液晶层；
S20 对所述聚合物分散液晶层进行第一UV照射，使所述聚合物分散液晶层中的部分聚合物以第一方向聚合；
S30 对所述聚合物分散液晶层进行第二UV，使所述聚合物分散液晶层中的部分聚合物以第二方向聚合，进而使得所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距；以及
S40 制备一背光模块，其中所述背光模块包括：基板；背光源，配置于所述基板上；以及所述聚合物分散液晶层，配置于所述背光源上方。
依据本发明的一实施例，本发明还提供一种显示器，包括上述背光模块。
依据本发明的一实施例，所述显示器还包括一液晶层配置于所述背光模块上方，其中所述聚合物分散液晶层配置于所述背光源及所述液晶层之间。
依据本发明的一实施例，所述聚合物分散液晶层是多层结构或单层结构。
依据本发明的一实施例，所述背光模块更包括光学功能层，配置于所述聚合物分散液晶层上方，其中所述光学功能层是多层结构或单层结构，包括一增亮膜。
依据本发明的一实施例，所述背光源包括单一光源、多个发光二极管、或多个微型发光二极管。
 有益效果
本发明提供一种新的背光模块及其透光率的调控方法，利用在液晶显示器(LCD)与背光源(BL)之间增加一层聚合物分散液晶层(PLCD)的方式，补正斜向视角与垂直视角的亮度及色度的差异。依据不同的视角，控制PDLC的聚合物的聚合方向，进而调控补正的方向，以改善斜向视角的观赏品味。
 附图说明
为了更清楚地说明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单介绍，显而易见地，下面描述中的附图仅仅是发明的一些实施例，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为依据本发明一实施例的背光模块示意图。
图2为依据本发明一实施例的背光模块的透光率的调控方法的流程图。
图3为依据本发明一实施例的显示器示意图。
 本发明的最佳实施方式
为让本发明的上述内容能更明显易懂，下文特举优选实施例，并配合所附图式作详细说明。
以下各实施例的说明是参考附加的图示，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[纵向]、[横向]、[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，结构相似的单元是用以相同标号表示。
为解决习知技术的问题，本发明提供一种新的背光模块及其透光率的调控方法和显示器，利用在液晶显示器(LCD)与背光源(BL)之间增加一层聚合物分散液晶层(PLCD)的方式，补正斜向视角与垂直视角的亮度及色度的差异。依据不同的视角，控制PDLC的聚合物的聚合方向，进而调控补正的方向，以改善斜向视角的观赏品味。
图1为依据本发明一实施例的背光模块示意图。图2为依据本发明一实施例的背光模块的透光率的调控方法的流程图。一并参见图1及图2，具体而言，本发明提供了一种背光模块100，包括：基板10；背光源20，配置于所述基板10上；以及聚合物分散液晶层30，配置于所述背光源20上方，其中，所述聚合物分散液晶层30具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。
聚合物分散液晶层30层对垂直方向的光无影响，可使斜向的光更加均匀(图1箭头所示)，达到与垂直方向的光一致。如对特殊视角有要求，可通过调整聚合物分散液晶层302聚合物排列方向，调整聚合物分散液晶层302的液晶层方向，调整背光源20显示亮度，达到改善视角的作用。
继续参见图1及图2，依据本发明的一实施例，本发明另提供一种背光模块100透光率的调控方法，包括以下步骤：
S10 提供聚合物分散液晶层30；
S20 对所述聚合物分散液晶层30进行第一UV照射，使所述聚合物分散液晶层30中的部分聚合物以第一方向聚合；
S30 对所述聚合物分散液晶层30进行第二UV，使所述聚合物分散液晶层30中的部分聚合物以第二方向聚合，进而使得所述聚合物分散液晶层30具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距；以及
S40 制备一背光模块100，其中所述背光模块100包括：基板10；背光源20，配置于所述基板10上；以及所述聚合物分散液晶层30，配置于所述背光源20上方。
图3为依据本发明一实施例的显示器示意图。参见图3，具体而言，本发明还提供一种显示器1，包括上述背光模块100。
如图3所示，依据本发明的一实施例，所述显示器1还包括一液晶层40配置于所述背光模块100上方，其中所述聚合物分散液晶层30配置于所述背光源20及所述液晶层40之间。
依据本发明的一实施例，所述聚合物分散液晶层30是多层结构或单层结构。
依据本发明的一实施例，所述背光模块100更包括光学功能层50，配置于所述聚合物分散液晶层30上方，其中所述光学功能层50是多层结构或单层结构，包括一增亮膜(图未示)。
依据本发明的一实施例，所述背光源20包括单一光源、多个发光二极管、或多个微型发光二极管，如图2所示。
据此，本发明提供一种新的背光模块及其透光率的调控方法，利用在液晶显示器(LCD)与背光源(BL)之间增加一层聚合物分散液晶层(PLCD)的方式，补正斜向视角与垂直视角的亮度及色度的差异。依据不同的视角，控制PDLC的聚合物的聚合方向，进而调控补正的方向，以改善斜向视角的观赏品味。
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 (13)

  1. 一种背光模块，包括：
    基板；
    背光源，配置于所述基板上；以及
    聚合物分散液晶层，配置于所述背光源上方，其中，所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。
  2. 根据权利要求1所述的背光模块，其中所述聚合物分散液晶层是多层结构或单层结构。
  3. 根据权利要求1所述的背光模块，其中所述背光模块更包括光学功能层，配置于所述聚合物分散液晶层上方，其中所述光学功能层是多层结构或单层结构，包括一增亮膜。
  4. 根据权利要求3所述的背光模块，其中所述背光源包括单一光源、多个发光二极管、或多个微型发光二极管。
  5. 一种显示器，包括一背光模块，其中所述背光模块包括：
    基板；
    背光源，配置于所述基板上；以及
    聚合物分散液晶层，配置于所述背光源上方，其中，所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距。
  6. 根据权利要求5所述的显示器，其中所述聚合物分散液晶层是多层结构或单层结构。
  7. 根据权利要求5所述的显示器，其中所述背光模块更包括光学功能层，配置于所述聚合物分散液晶层上方，其中所述光学功能层是多层结构或单层结构，包括一增亮膜。
  8. 根据权利要求7所述的显示器，其中所述背光源包括单一光源、多个发光二极管、或多个微型发光二极管。
  9. 根据权利要求5所述的显示器，还包括一液晶层配置于所述背光模块上方，其中所述聚合物分散液晶层配置于所述背光源及所述液晶层之间。
  10. 一种背光模块透光率的调控方法，包括以下步骤：
    S10 提供聚合物分散液晶层；
    S20 对所述聚合物分散液晶层进行第一UV照射，使所述聚合物分散液晶层中的部分聚合物以第一方向聚合；
    S30 对所述聚合物分散液晶层进行第二UV，使所述聚合物分散液晶层中的部分聚合物以第二方向聚合，进而使得所述聚合物分散液晶层具有至少两种相异的聚合方向，以缩小斜向视角的出光量与垂直视角的出光量之间的差距；以及
    S40 制备一背光模块，其中所述背光模块包括：
    基板；
    背光源，配置于所述基板上；以及
    所述聚合物分散液晶层，配置于所述背光源上方。
  11. 根据权利要求10所述的背光模块透光率的调控方法，其中所述聚合物分散液晶层是多层结构或单层结构。
  12. 根据权利要求10所述的背光模块透光率的调控方法，其中所述背光模块更包括光学功能层，配置于所述聚合物分散液晶层上方，其中所述光学功能层是多层结构或单层结构，包括一增亮膜。
  13. 根据权利要求10所述的背光模块透光率的调控方法，其中所述背光源包括单一光源、多个发光二极管、或多个微型发光二极管。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070051471A (ko) * 2005-11-15 2007-05-18 (재)대구경북과학기술연구원 고분자 분산형 액정 모드를 채용한 액정 표시 장치
US20120262649A1 (en) * 2011-04-13 2012-10-18 Samsung Electronics Co., Ltd. Reflective display device including polymer-dispersed liquid crystals
CN102901047A (zh) * 2012-10-13 2013-01-30 江苏和成显示科技股份有限公司 光扩散薄膜、具有光扩散薄膜的背光模块及液晶显示器
CN105807485A (zh) * 2014-12-30 2016-07-27 上海冠显光电科技有限公司 液晶显示模组、装置及控制方法
CN106842737A (zh) * 2017-03-30 2017-06-13 惠科股份有限公司 液晶显示器及其视角色差改善方法
CN109164618A (zh) * 2018-11-09 2019-01-08 惠科股份有限公司 显示面板组件及显示装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3547712B2 (ja) * 2001-02-13 2004-07-28 ナノックス株式会社 反射型液晶表示装置とその製造方法
CN101187749A (zh) * 2006-11-15 2008-05-28 群康科技(深圳)有限公司 液晶显示装置
CN101241256B (zh) * 2008-03-11 2010-07-21 友达光电股份有限公司 像素单元、液晶显示面板、光电装置及其制造方法
US7837897B2 (en) * 2009-04-27 2010-11-23 Polytronix, Inc. Polymeric dispersed liquid crystal light shutter device
KR20120125859A (ko) * 2011-05-09 2012-11-19 삼성디스플레이 주식회사 액정 표시 장치 및 액정 표시 장치의 제조 방법
CN102866538B (zh) * 2012-09-24 2015-11-25 京东方科技集团股份有限公司 光学补偿膜及其制备方法、显示装置
TW201518820A (zh) * 2013-11-07 2015-05-16 Chunghwa Picture Tubes Ltd 高分子分散型液晶的製造方法
CN204855992U (zh) * 2014-12-30 2015-12-09 上海冠显光电科技有限公司 液晶显示模组及液晶显示装置
CN104977758A (zh) * 2015-07-31 2015-10-14 深圳市华星光电技术有限公司 一种适用于psva型液晶显示面板的配向方法
JP6764118B2 (ja) * 2016-02-01 2020-09-30 セントラル硝子株式会社 高分子分散型液晶ガラス構造体
CN105549238A (zh) * 2016-03-01 2016-05-04 京东方科技集团股份有限公司 可切换防窥显示装置及背光源
CN105954913B (zh) * 2016-06-24 2021-02-26 京东方科技集团股份有限公司 一种液晶显示器及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070051471A (ko) * 2005-11-15 2007-05-18 (재)대구경북과학기술연구원 고분자 분산형 액정 모드를 채용한 액정 표시 장치
US20120262649A1 (en) * 2011-04-13 2012-10-18 Samsung Electronics Co., Ltd. Reflective display device including polymer-dispersed liquid crystals
CN102901047A (zh) * 2012-10-13 2013-01-30 江苏和成显示科技股份有限公司 光扩散薄膜、具有光扩散薄膜的背光模块及液晶显示器
CN105807485A (zh) * 2014-12-30 2016-07-27 上海冠显光电科技有限公司 液晶显示模组、装置及控制方法
CN106842737A (zh) * 2017-03-30 2017-06-13 惠科股份有限公司 液晶显示器及其视角色差改善方法
CN109164618A (zh) * 2018-11-09 2019-01-08 惠科股份有限公司 显示面板组件及显示装置

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