WO2017152446A1 - 一种液晶显示面板及装置 - Google Patents

一种液晶显示面板及装置 Download PDF

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Publication number
WO2017152446A1
WO2017152446A1 PCT/CN2016/078425 CN2016078425W WO2017152446A1 WO 2017152446 A1 WO2017152446 A1 WO 2017152446A1 CN 2016078425 W CN2016078425 W CN 2016078425W WO 2017152446 A1 WO2017152446 A1 WO 2017152446A1
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WIPO (PCT)
Prior art keywords
substrate
wave plate
liquid crystal
crystal display
display panel
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2016/078425
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English (en)
French (fr)
Inventor
钟新辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan China Star Optoelectronics Technology Co Ltd
Original Assignee
Wuhan China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Wuhan China Star Optoelectronics Technology Co Ltd filed Critical Wuhan China Star Optoelectronics Technology Co Ltd
Priority to US15/113,569 priority Critical patent/US20170371191A1/en
Publication of WO2017152446A1 publication Critical patent/WO2017152446A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
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    • G02F1/133502—Antiglare, refractive index matching layers
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    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
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    • 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
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    • 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
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    • G—PHYSICS
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    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • 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
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • 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
    • G02F1/133616—Front illuminating devices
    • 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
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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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a liquid crystal display panel and device.
  • LCD Liquid Crystal
  • the display characteristics of the LCD may be deteriorated due to the influence of ambient light, making it difficult for the user to see the contents of the screen.
  • equipment commonly used in life such as mobile phones, watches, other wearable devices, and outdoor equipment facilities, will inevitably be used in outdoor glare environments.
  • the LCD When the LCD is in a dark state, the LCD has a very low transmittance, and the backlight is illuminated by the LCD. Blocking, at the same time, ambient light can't penetrate the panel to reach the reflective diaphragm, so it will not affect the display effect.
  • the backlight can reach the human eye through the LCD, and the ambient light with higher brightness can also reach the reflective film through the panel and then enter the human eye through reflection. It can be seen that when the ambient light is strong, it will affect the original display effect of the LCD, making it difficult for the user to see the contents of the screen, resulting in poor display performance.
  • the present invention constructs a liquid crystal display panel, including:
  • the first substrate includes:
  • the second substrate is disposed opposite to the first substrate, and the second substrate includes:
  • the wave plate located below the lower polarizer; the wave plate is for reducing reflection of ambient light by the reflective film, the wave plate being a quarter wave plate or a half wave plate, or a quarter A combination of a wave plate and a half wave plate, wherein an angle between an absorption axis direction of the lower polarizer and a fast axis direction of the wave plate is 45 degrees or 135 degrees.
  • the first substrate is a color film substrate
  • the second substrate is an array substrate
  • the first substrate further includes a black matrix layer and a color resist layer, and a transparent conductive layer.
  • the material of the upper polarizer and the lower polarizer is polyvinyl alcohol.
  • the present invention constructs a liquid crystal display panel, including:
  • the first substrate includes:
  • the second substrate is disposed opposite to the first substrate, and the second substrate includes:
  • the wave plate located below the lower polarizer; the wave plate is for reducing reflection of ambient light by the reflective film.
  • the wave plate is a quarter wave plate or a half wave plate, or a combination of a quarter wave plate and a half wave plate.
  • an angle between an absorption axis direction of the lower polarizer and a fast axis direction of the wave plate is 45 degrees or 135 degrees.
  • the first substrate is a color film substrate
  • the second substrate is an array substrate
  • the material of the upper polarizer and the lower polarizer is polyvinyl alcohol.
  • the invention also provides a liquid crystal display device comprising:
  • a backlight module including a reflective film
  • a liquid crystal display panel comprising:
  • the first substrate includes:
  • the second substrate is disposed opposite to the first substrate, and the second substrate includes:
  • the wave plate located below the lower polarizer; the wave plate is for reducing reflection of ambient light by the reflective film.
  • the wave plate is a quarter wave plate or a half wave plate, or a combination of a quarter wave plate and a half wave plate.
  • an angle between an absorption axis direction of the lower polarizer and a fast axis direction of the wave plate is 45 degrees or 135 degrees.
  • the first substrate is a color filter substrate
  • the second substrate is an array substrate
  • the material of the upper polarizer and the lower polarizer is polyvinyl alcohol.
  • the liquid crystal display panel and device of the present invention can prevent the ambient light from entering the panel and being reflected by the reflective film by adding a wave plate under the lower polarizer of the existing panel, especially when used in an outdoor strong light environment, thereby improving the display effect. .
  • FIG. 1 is a schematic structural view of a liquid crystal display panel of the present invention
  • FIG. 2 is a schematic view showing the optical path principle of the liquid crystal display panel of the present invention.
  • FIG. 1 is a schematic structural view of a liquid crystal display panel according to the present invention.
  • the liquid crystal display panel of the present invention includes a first substrate 10 and a second substrate 20, and a liquid crystal layer 30.
  • the first substrate 10 includes a first substrate 11 and an upper polarized light on the first substrate. a sheet 12; a liquid crystal layer 30 is disposed between the first substrate 10 and the second substrate 20; the second substrate 20 is disposed opposite to the first substrate 10;
  • the second substrate 20 includes a second substrate 21, a lower polarizer 22, and a wave plate 23; the lower polarizer 22 is located below the second substrate 21; and the wave plate 23 is located at the lower polarized light Below the sheet 22, the wave plate 23 serves to reduce the reflection of ambient light by the reflective diaphragm.
  • the wave plate 23 when ambient light is incident on the wave plate 23 from the lower polarizer 22, the wave plate 23 causes the ambient light to form a circularly polarized light a, which is reflected by the reflective film 40 and is circularly polarized b in the opposite direction, and is circularly polarized b.
  • the linearly polarized light c becomes, but since the angle of the linearly polarized light c is perpendicular to the absorption axis of the lower polarizer 22, the linearly polarized light processed by the wave plate 23 can no longer pass through the lower polarizer into the human eye. Therefore, the influence of the external environment light on the display effect of the display panel is eliminated, and the display effect is improved.
  • ambient light can also be used as a backlight, which reduces the power consumption of the backlight and improves the utilization of ambient light.
  • the wave plate 23 is a quarter wave plate or a half wave plate, or a combination of a quarter wave plate and a half wave plate.
  • the angle between the absorption axis direction of the lower polarizer 22 and the fast axis direction of the wave plate 23 may be 45 degrees or 135 degrees. Since the angle is too large or too small, the angle of the entire line polarized light after the treatment by the reflective film cannot be made 90 degrees from the absorption axis of the lower polarizer; therefore, when the above angle satisfies the above requirements, the angle can be better. Prevent ambient light from entering the panel and being reflected by the reflective diaphragm into the human eye.
  • the first substrate 10 may be a color film substrate, and the second substrate 20 may be an array substrate.
  • the second substrate 20 is an array substrate, a plurality of data lines and a plurality of scan lines, and a plurality of pixel units defined by the data lines and the scan lines may be further included.
  • the first substrate 10 is a color filter substrate, a black matrix layer and a color resist layer, and a transparent conductive layer may also be included.
  • the material of the upper polarizer 12 and the lower polarizer 22 is polyvinyl alcohol.
  • the wave plate is disposed under the lower polarizer, when it is used in an outdoor strong light environment, the ambient light entering the panel is prevented from being reflected by the reflective film, thereby improving the display effect.
  • the present invention also provides a liquid crystal display device including a backlight module and a liquid crystal display panel.
  • the backlight module includes a reflective film.
  • the liquid crystal display panel includes a first substrate 10 and a second substrate 20, a liquid crystal layer 30; the first substrate 10 includes a first substrate 11 and an upper polarizer 12 on the first substrate; the liquid crystal layer 30 is located between the first substrate 10 and the second substrate 20; 20 is disposed opposite to the first substrate 10;
  • the second substrate 20 includes a second substrate 21, a lower polarizer 22, and a wave plate 23; the lower polarizer 22 is located below the second substrate 21; and the wave plate 23 is located at the lower polarized light Below the sheet 22, the wave plate 23 serves to reduce the reflection of ambient light by the reflective diaphragm.
  • the wave plate 23 when ambient light is incident on the wave plate 23 from the lower polarizer 22, the wave plate 23 causes the ambient light to form a circularly polarized light a, which is reflected by the reflective film 40 and is circularly polarized b in the opposite direction, and is circularly polarized b.
  • the linearly polarized light c becomes, but since the angle of the linearly polarized light c is perpendicular to the absorption axis of the lower polarizer 22, the linearly polarized light processed by the wave plate 23 can no longer pass through the lower polarizer into the human eye. Therefore, the influence of the external environment light on the display effect of the display panel is eliminated, and the display effect is improved.
  • ambient light can also be used as a backlight, which reduces the power consumption of the backlight and improves the utilization of ambient light.
  • the wave plate 23 is a quarter wave plate or a half wave plate, or a combination of a quarter wave plate and a half wave plate.
  • the angle between the absorption axis direction of the lower polarizer 22 and the fast axis direction of the wave plate 23 may be 45 degrees or 135 degrees. Since the angle is too large or too small, the angle of the entire line polarized light after the treatment by the reflective film cannot be made 90 degrees from the absorption axis of the lower polarizer; therefore, when the above angle satisfies the above requirements, the angle can be better. Prevent ambient light from entering the panel and being reflected by the reflective diaphragm into the human eye.
  • the first substrate 10 may be a color film substrate, and the second substrate 20 may be an array substrate.
  • the second substrate 20 is an array substrate, a plurality of data lines and a plurality of scan lines, and a plurality of pixel units defined by the data lines and the scan lines may be further included.
  • the first substrate 10 is a color filter substrate, a black matrix layer and a color resist layer, and a transparent conductive layer may also be included.
  • the material of the upper polarizer 12 and the lower polarizer 22 is polyvinyl alcohol.
  • the wave plate is disposed under the lower polarizer, when it is used in an outdoor strong light environment, the ambient light entering the panel is prevented from being reflected by the reflective film, thereby improving the display effect.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Geometry (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

一种液晶显示面板及装置，所述液晶显示面板包括：第一基板（10）、液晶层（30），位于所述第一基板（10）和第二基板（20）之间；所述第二基板（20），与所述第一基板（10）相对设置，所述第二基板（20）包括：第二衬底（21）；下偏光片（22），位于所述第二衬底（21）的下方；波片（23），位于所述下偏光片（22）的下方；所述波片（23）用于降低反射膜片（40）对环境光的反射。

Description

一种液晶显示面板及装置 技术领域
本发明涉及显示器技术领域，特别是涉及一种液晶显示面板及装置。
 背景技术
随着液晶显示器LCD（Liquid Crystal Display）的不断发展，使得LCD的对比度、亮度、色域等特性也相应地提升，在绝大多数情况下，现有的LCD已能满足人们对信息显示的需求。
但是，在室外强光环境下，LCD的显示特性会因环境光线的影响变差，导致用户很难看得清屏幕的内容。然而生活中常用的设备，比如手机、手表、其他穿戴设备、以及户外设备设施等，不可避免地会在室外强光环境下使用。当LCD为暗态时，LCD具有极低的穿透率，此时背光被LCD 阻挡，同时，环境光也无法穿透面板到达反射膜片，因而不会对显示效果造成影响。
但是当LCD为亮态时，背光可以透过LCD到达人眼，同时亮度较高的环境光也可透过面板到达反射膜片，再经反射进入人眼。可见，当环境光线较强时，则会影响LCD原本的显示效果，使用户很难看得清屏幕的内容，导致显示效果较差。
因此，有必要提供一种液晶显示面板及装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板及装置，以解决现有技术的液晶显示面板及装置，在室外强光环境下使用时，显示效果较差的技术问题。
 技术解决方案
为解决上述技术问题，本发明构造了一种液晶显示面板，包括：
第一基板，包括：
第一衬底；
上偏光片，位于所述第一衬底上；
液晶层，位于所述第一基板和第二基板之间；
所述第二基板，与所述第一基板相对设置，所述第二基板包括：
第二衬底；
下偏光片，位于所述第二衬底的下方；
波片，位于所述下偏光片的下方；所述波片用于降低反射膜片对环境光的反射，所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合，其中所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
在本发明的所述液晶显示面板中，所述第一基板为彩膜基板、所述第二基板为阵列基板。
在本发明的所述液晶显示面板中，所述第一基板还包括黑色矩阵层和色阻层、以及透明导电层。
在本发明的所述液晶显示面板中，所述上偏光片和所述下偏光片的材料为聚乙烯醇。
为解决上述技术问题，本发明构造了一种液晶显示面板，包括：
第一基板，包括：
第一衬底；
上偏光片，位于所述第一衬底上；
液晶层，位于所述第一基板和第二基板之间；
所述第二基板，与所述第一基板相对设置，所述第二基板包括：
第二衬底；
下偏光片，位于所述第二衬底的下方；
波片，位于所述下偏光片的下方；所述波片用于降低反射膜片对环境光的反射。
在本发明的所述液晶显示面板中，所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
在本发明的所述液晶显示面板中，所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
在本发明的所述液晶显示面板中，所述第一基板为彩膜基板、所述第二基板为阵列基板。
在本发明的所述液晶显示面板中，所述上偏光片和所述下偏光片的材料为聚乙烯醇。
本发明还提供一种液晶显示装置，其包括：
背光模块，其包括反射膜片；以及
液晶显示面板，其包括：
第一基板，包括：
第一衬底；
上偏光片，位于所述第一衬底上；
液晶层，位于所述第一基板和第二基板之间；
所述第二基板，与所述第一基板相对设置，所述第二基板包括：
第二衬底；
下偏光片，位于所述第二衬底的下方；
波片，位于所述下偏光片的下方；所述波片用于降低所述反射膜片对环境光的反射。
在本发明的液晶显示装置中，所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
在本发明的液晶显示装置中，所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
在本发明的液晶显示装置中，所述第一基板为彩膜基板、所述第二基板为阵列基板。
在本发明的液晶显示装置中，所述上偏光片和所述下偏光片的材料为聚乙烯醇。
 有益效果
本发明的液晶显示面板及装置，通过在现有面板的下偏光片下方增加波片，从而防止环境光进入面板被反射膜片反射，特别是在室外强光环境下使用时，提高了显示效果。
附图说明
图1为本发明的液晶显示面板的结构示意图；
图2为本发明的液晶显示面板的光路原理示意图。
 本发明的最佳实施方式
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为本发明的液晶显示面板的结构示意图；
如图1所示，本发明的液晶显示面板，包括第一基板10和第二基板20、液晶层30；第一基板10包括第一衬底11和位于所述第一衬底上的上偏光片12；液晶层30位于第一基板10和第二基板20之间；所述第二基板20与所述第一基板10相对设置；
所述第二基板20包括第二衬底21、下偏光片22、以及波片23；所述下偏光片22位于所述第二衬底21的下方；所述波片23位于所述下偏光片22的下方，所述波片23用于降低反射膜片对环境光的反射。
如图2所示，当环境光从下偏光片22入射到波片23时，波片23使环境光形成圆偏光a，经反射膜片40反射后呈逆方向圆偏光b，圆偏光b再经波片23后，变成线偏光c，但是由于线偏光c的角度与下偏光片22的吸收轴垂直，因此经过波片23处理后的线偏光不能再透过下偏光片进入人眼。从而消除了外界环境光较强时，对显示面板的显示效果造成的影响，提高了显示效果。
此外，由于环境光进入到背光模块，还可以将环境光作为背光使用，降低了背光的功耗，且提高了环境光的利用率。
优选地，所述波片23为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
为了更好地防止环境光进入面板被反射膜片反射进入人眼，所述下偏光片22的吸收轴方向与所述波片23的快轴方向之间的夹角可以为45度或135度，由于角度太大或者太小，不能使得经过反射膜片处理后的全部线偏光的角度与下偏光片的吸收轴的角度为90度；因此当上述夹角满足上述要求时，能更好地防止环境光进入面板被反射膜片反射进入人眼。
所述第一基板10可以为彩膜基板、所述第二基板20可以为阵列基板。当第二基板20为阵列基板时，还可包括多条数据线和多条扫描线，以及由所述数据线和所述扫描线限定的多个像素单元。当第一基板10为彩膜基板时，还可包括黑色矩阵层和色阻层、以及透明导电层。
优选地，所述上偏光片12和所述下偏光片22的材料为聚乙烯醇。
本发明的液晶显示面板，由于在下偏光片下方设置波片，从而在室外强光环境下使用时，防止环境光进入面板被反射膜片反射，从而提高了显示效果。
本发明还提供一种液晶显示装置，其包括背光模组和液晶显示面板，所述背光模组包括反射膜片，如图1所示，液晶显示面板包括第一基板10和第二基板20、液晶层30；第一基板10包括第一衬底11和位于所述第一衬底上的上偏光片12；液晶层30位于第一基板10和第二基板20之间；所述第二基板20与所述第一基板10相对设置；
所述第二基板20包括第二衬底21、下偏光片22、以及波片23；所述下偏光片22位于所述第二衬底21的下方；所述波片23位于所述下偏光片22的下方，所述波片23用于降低反射膜片对环境光的反射。
如图2所示，当环境光从下偏光片22入射到波片23时，波片23使环境光形成圆偏光a，经反射膜片40反射后呈逆方向圆偏光b，圆偏光b再经波片23后，变成线偏光c，但是由于线偏光c的角度与下偏光片22的吸收轴垂直，因此经过波片23处理后的线偏光不能再透过下偏光片进入人眼。从而消除了外界环境光较强时，对显示面板的显示效果造成的影响，提高了显示效果。
此外，由于环境光进入到背光模块，还可以将环境光作为背光使用，降低了背光的功耗，且提高了环境光的利用率。
优选地，所述波片23为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
为了更好地防止环境光进入面板被反射膜片反射进入人眼，所述下偏光片22的吸收轴方向与所述波片23的快轴方向之间的夹角可以为45度或135度，由于角度太大或者太小，不能使得经过反射膜片处理后的全部线偏光的角度与下偏光片的吸收轴的角度为90度；因此当上述夹角满足上述要求时，能更好地防止环境光进入面板被反射膜片反射进入人眼。
所述第一基板10可以为彩膜基板、所述第二基板20可以为阵列基板。当第二基板20为阵列基板时，还可包括多条数据线和多条扫描线，以及由所述数据线和所述扫描线限定的多个像素单元。当第一基板10为彩膜基板时，还可包括黑色矩阵层和色阻层、以及透明导电层。
优选地，所述上偏光片12和所述下偏光片22的材料为聚乙烯醇。
本发明的液晶显示装置，由于在下偏光片下方设置波片，从而在室外强光环境下使用时，防止环境光进入面板被反射膜片进行反射，从而提高了显示效果。
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 (14)

  1. 一种液晶显示面板，其包括：
    第一基板，包括：
    第一衬底；
    上偏光片，位于所述第一衬底上；
    液晶层，位于所述第一基板和第二基板之间；
    所述第二基板，与所述第一基板相对设置，所述第二基板包括：
    第二衬底；
    下偏光片，位于所述第二衬底的下方；
    波片，位于所述下偏光片的下方；所述波片用于降低反射膜片对环境光的反射，所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合，其中所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
  2. 根据权利要求1所述的液晶显示面板，其中
    所述第一基板为彩膜基板、所述第二基板为阵列基板。
  3. 根据权利要求2所述的液晶显示面板，其中
    所述第一基板还包括黑色矩阵层和色阻层、以及透明导电层。
  4. 根据权利要求1所述的液晶显示面板，其中
    所述上偏光片和所述下偏光片的材料为聚乙烯醇。
  5. 一种液晶显示面板，其包括：
    第一基板，包括：
    第一衬底；
    上偏光片，位于所述第一衬底上；
    液晶层，位于所述第一基板和第二基板之间；
    所述第二基板，与所述第一基板相对设置，所述第二基板包括：
    第二衬底；
    下偏光片，位于所述第二衬底的下方；
    波片，位于所述下偏光片的下方；所述波片用于降低反射膜片对环境光的反射。
  6. 根据权利要求5所述的液晶显示面板，其中
    所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
  7. 根据权利要求5所述的液晶显示面板，其中
    所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
  8. 根据权利要求5所述的液晶显示面板，其中
    所述第一基板为彩膜基板、所述第二基板为阵列基板。
  9. 根据权利要求5所述的液晶显示面板，其中
    所述上偏光片和所述下偏光片的材料为聚乙烯醇。
  10. 一种液晶显示装置，其包括：
    背光模块，其包括反射膜片；以及
    液晶显示面板，其包括：
    第一基板，包括：
    第一衬底；
    上偏光片，位于所述第一衬底上；
    液晶层，位于所述第一基板和第二基板之间；
    所述第二基板，与所述第一基板相对设置，所述第二基板包括：
    第二衬底；
    下偏光片，位于所述第二衬底的下方；
    波片，位于所述下偏光片的下方；所述波片用于降低所述反射膜片对环境光的反射。
  11. 根据权利要求10所述的液晶显示装置，其中
    所述波片为四分之一波片或二分之一波片，或者四分之一波片和二分之一波片的组合。
  12. 根据权利要求10所述的液晶显示装置，其中
    所述下偏光片的吸收轴方向与所述波片的快轴方向之间的夹角为45度或135度。
  13. 根据权利要求10所述的液晶显示装置，其中
    所述第一基板为彩膜基板、所述第二基板为阵列基板。
  14. 根据权利要求10所述的液晶显示装置，其中
    所述上偏光片和所述下偏光片的材料为聚乙烯醇。
PCT/CN2016/078425 2016-03-11 2016-04-05 一种液晶显示面板及装置 Ceased WO2017152446A1 (zh)

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