WO2021248595A1 - 一种液晶显示面板及液晶显示装置 - Google Patents

一种液晶显示面板及液晶显示装置 Download PDF

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Publication number
WO2021248595A1
WO2021248595A1 PCT/CN2020/100047 CN2020100047W WO2021248595A1 WO 2021248595 A1 WO2021248595 A1 WO 2021248595A1 CN 2020100047 W CN2020100047 W CN 2020100047W WO 2021248595 A1 WO2021248595 A1 WO 2021248595A1
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WO
WIPO (PCT)
Prior art keywords
polarizer
liquid crystal
crystal display
display module
cover plate
Prior art date
Application number
PCT/CN2020/100047
Other languages
English (en)
French (fr)
Inventor
黄东晨
郑净远
Original Assignee
惠州市华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州市华星光电技术有限公司 filed Critical 惠州市华星光电技术有限公司
Priority to US16/961,686 priority Critical patent/US11868007B2/en
Publication of WO2021248595A1 publication Critical patent/WO2021248595A1/zh

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Classifications

    • 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
    • G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133531—Polarisers characterised by the arrangement of polariser or analyser axes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133541—Circular polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • 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
    • G02F1/133502—Antiglare, refractive index matching 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
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side

Definitions

  • This application relates to the field of display technology, and in particular to a liquid crystal display panel and a liquid crystal display device.
  • a traditional liquid crystal display generally includes a display screen body and a packaging cover plate arranged on the light-emitting side of the display screen body, and the display screen body is protected by the packaging cover plate.
  • the packaging cover plate After passing through the packaging cover plate, the high intensity ambient light will reflect multiple times between the packaging cover plate and the display body, and whitening will occur at the viewing angle of the specular reflection, which leads to a better user experience. Poor technical issues.
  • the present application provides a liquid crystal display panel, the liquid crystal display panel including:
  • a package cover plate arranged on the light emitting side of the display module
  • the package cover includes the cover body and a first polarizer, and the first polarizer is disposed on a side of the cover body close to the display module or/and the cover body is far away One side of the display module.
  • the package cover plate further includes a quarter wave plate disposed on a side of the first polarizer away from the cover plate body.
  • a first sealant is provided between the packaging cover and the display module, and the first sealant is bonded to the packaging cover and the display module.
  • a frame glue, the packaging cover plate and the display module form a cavity.
  • the display module includes a display screen body and a touch layer disposed on the light emitting side of the display screen body, and the first sealant is surrounded by the packaging cover plate and the touch layer. Synthesize the cavity.
  • the display module further includes a second polarizer disposed on a side of the display screen body close to the packaging cover plate, and a second polarizer disposed on the display screen body away from the packaging cover plate.
  • the third polarizer on the side.
  • the second polarizer includes a large viewing angle polarizer, and the viewing angle of the large viewing angle polarizer is larger than the viewing angle of the third polarizer.
  • the polarization direction of the first polarizer is parallel to the polarization direction of the second polarizer.
  • the second polarizer is disposed between the touch layer and the display screen body.
  • a plurality of protrusions are distributed on a side of the packaging cover plate away from the display module.
  • the present application also provides a liquid crystal display device, the liquid crystal display device includes a backlight module and a liquid crystal display panel, the backlight module is disposed on the back side of the liquid crystal display panel; the liquid crystal display panel includes:
  • a package cover plate arranged on the light emitting side of the display module
  • the package cover includes the cover body and a first polarizer, and the first polarizer is disposed on a side of the cover body close to the display module or/and the cover body is far away One side of the display module.
  • the package cover plate further includes a quarter wave plate disposed on a side of the first polarizer away from the cover plate body.
  • a first sealant is provided between the packaging cover and the display module, and the first sealant is bonded to the packaging cover and the display module.
  • a frame glue, the packaging cover plate and the display module form a cavity.
  • the display module includes a display screen body and a touch layer disposed on the light emitting side of the display screen body, and the first sealant is surrounded by the packaging cover plate and the touch layer. Synthesize the cavity.
  • the display module further includes a second polarizer disposed on a side of the display screen body close to the packaging cover plate, and a second polarizer disposed on the display screen body away from the packaging cover plate.
  • the third polarizer on the side.
  • the second polarizer includes a large viewing angle polarizer, and the viewing angle of the large viewing angle polarizer is larger than the viewing angle of the third polarizer.
  • the polarization direction of the first polarizer is parallel to the polarization direction of the second polarizer.
  • the second polarizer is disposed between the touch layer and the display screen body.
  • a plurality of protrusions are distributed on a side of the packaging cover plate away from the display module.
  • the first polarizer reduces the intensity and quantity of the ambient light reflected between the cover body and the display module, and at the same time, the quarter wave plate is combined with the first polarizer to make the cover body and the display module
  • the reflected ambient light can no longer be injected into human eyes. Even if the user looks at the liquid crystal display panel from the perspective of specular reflection, the user will not see the whitening phenomenon, which increases the visibility of the large viewing angle, and the first polarizer and the four The half-wave plate will not affect the normal display of the liquid crystal display panel, improving user experience.
  • FIG. 1 is a schematic diagram of the first structure of a liquid crystal display panel in this application.
  • FIG. 2 is a schematic diagram of the second structure of the liquid crystal display panel in this application.
  • FIG. 3 is a schematic diagram of a third structure of the liquid crystal display panel in this application.
  • FIG. 4 is a schematic diagram of the fourth structure of the liquid crystal display panel in this application.
  • FIG. 5 is a schematic diagram of the fifth structure of the liquid crystal display panel in this application.
  • FIG. 6 is a schematic structural diagram of a liquid crystal display device in an embodiment of the application.
  • Liquid crystal display panel 11.
  • Display module 111, display screen body; 111a, array substrate; 111b, color filter substrate; 111c, liquid crystal layer; 111d, second sealant; 112, touch layer; 113, first Second polarizer; 114, third polarizer; 12, package cover plate; 121, cover body; 122, first polarizer; 13, first sealant; 14, cavity; 15, quarter wave plate ; 16, raised; 20, backlight module.
  • This application is aimed at existing liquid crystal displays. After passing through the packaging cover, the high-intensity ambient light will cause multiple reflections between the packaging cover and the display body, and it will occur at the viewing angle of the specular reflection (such as a large viewing angle). The whitening phenomenon leads to technical problems with poor user experience.
  • the liquid crystal display panel 10 includes a display module 11 and a packaging cover 12 arranged on the light emitting side of the display module 11.
  • the display module 11 is a liquid crystal display module
  • the packaging cover 12 includes the cover body 121 and a first polarizer 122.
  • the cover body 121 is a transparent plate body, and the cover body 121 may be a transparent plastic plate body or a transparent glass plate body.
  • the orthographic projection of the display module 11 on the cover body 121 is located in the cover body 121, that is, the size of the cover body 121 is larger than the size of the display module 11, and the cover body 121 is used to protect the display module 11 to avoid display molds.
  • Group 11 is directly squeezed, bumped, and contacted with water vapor.
  • the first polarizer 122 is disposed on a side of the cover body 121 close to the display module 11 or/and a side of the cover body 121 away from the display module 11.
  • the first polarizer 122 is a linear polarizer, and the ambient light is generally similar to circularly polarized light.
  • the ambient light beam passes through the first polarizer 122, nearly half of the ambient light beam cannot pass through the first polarizer 122.
  • Only part of the ambient light passes through the first polarizer 122 and is reflected multiple times between the cover body 121 and the display module 11, and the amount of ambient light emitted between the cover body 121 and the display module 11 is The intensity is low, and even if the user views the liquid crystal display panel 10 at a specularly-reflected viewing angle (such as a large viewing angle), the whitening phenomenon will not be seen, thereby increasing the visibility of the large viewing angle and improving the user experience.
  • first polarizer 122 can be bonded and fixed to the cover body 121 through an optical adhesive layer in a fully bonded manner.
  • the first polarizer 122 is disposed on a side of the cover body 121 close to the display module 11 to protect the first polarizer 122 by the cover body 121.
  • the first polarizer 122 can also be arranged on the side of the cover body 121 away from the display module 11.
  • the intensity of the ambient light will be greatly reduced by the first polarizer 122.
  • the intensity of the ambient light is further reduced when the ambient light passes through the cover body 121, thereby further reducing the intensity and quantity of the ambient light reflected between the cover body 121 and the display module 11.
  • first polarizer 122 may also be provided on the side of the cover body 121 close to the display module 11 and the side far away from the display module 11. At this time, the polarization directions of the two first polarizers 122 parallel.
  • the package cover 12 further includes a quarter wave plate 15 disposed on a side of the first polarizer 122 away from the cover body 121.
  • the ambient light After the ambient light passes through the first polarizer 122, the ambient light becomes polarized light with the same polarization direction as that of the first polarizer 122, and then the ambient light passes through the quarter wave plate 15 and is The display module 11 is reflected back, and the reflected ambient light passes through the quarter-wave plate 15 again.
  • the polarization direction of the ambient light is orthogonal to the polarization direction of the first polarizer 122, and the ambient light cannot pass through the first polarizer 122.
  • a polarizer 122 enters the human eye, so the user will not see the whitening phenomenon, which further increases the visibility of the large viewing angle and improves the user experience.
  • a first sealant 13 is provided between the packaging cover 12 and the display module 11, and the first sealant 13 is bonded to the packaging cover 12 and the display module 11.
  • the first sealant 13, the packaging cover 12 and the display module 11 form a cavity 14.
  • the packaging cover 12 is glued to the display module 11 through the first sealant 13.
  • the first sealant 13 may be an ultraviolet curing adhesive. After the sealant material is applied to one of the packaging cover 12 and the display module 11, the packaging cover 12 is attached to the display module 11. The material is cured to form the first sealant 13 after being irradiated with ultraviolet light.
  • the first sealant 13 is arranged at the edge area of the display module 11 and surrounds the light-emitting area of the display module 11, and the first sealant 13 is combined with the packaging cover 12 and the display module 11 in the cavity 14 It can be filled with air to prevent the package cover 12 from sinking toward the cavity 14 under the action of atmospheric pressure.
  • the cavity 14 may also be a vacuum cavity.
  • the package cover 12 is attached to the display module 11 through the first sealant 13, and the cavity There is no optical adhesive layer in the body 14, which can improve the light transmittance of the liquid crystal display panel 10.
  • the first polarizer 122 it can reduce the mixing of ambient light in the cavity 14 with the light emitted by the display module 11 , So as to realize that the liquid crystal display panel still has better visibility under a large viewing angle.
  • the display module 11 includes a display screen body 111 and a touch layer 112 disposed on the light emitting side of the display screen body 111, the first sealant 13 and the packaging cover 12, and The touch layer 112 surrounds the cavity 14.
  • the touch layer 112 may include one or more of capacitive touch components, resistive touch components, acoustic touch components, mechanical touch components, and optical touch components;
  • the layer 112 can be pasted on the display screen body 111 through a sealant frame, and the touch layer 112 can also be fully pasted on the display screen body 111 through an optical glue.
  • the display module 11 further includes a second polarizer 113 arranged on the side of the display screen body 111 close to the packaging cover plate 12, and a second polarizer 113 arranged on the display screen body 111 away from the packaging cover plate 12 on one side of the third polarizer 114.
  • the third polarizer 114 is used to convert the light beam generated by the backlight of the liquid crystal display panel 10 into polarized light
  • the second polarizer 113 is used to analyze the polarized light that has been electrically modulated by the liquid crystal to produce contrast between light and dark.
  • the polarization direction of the second polarizer 113 may be the same as or different from the polarization direction of the third polarizer 114.
  • the second polarizer 113 includes a large viewing angle polarizer, and the viewing angle of the large viewing angle polarizer is larger than the viewing angle of the third polarizer 114.
  • the viewing angle of a general polarizer such as the third polarizer 114 is 30-60 degrees, while the viewing angle of the large viewing angle polarizer may be much greater than 60 degrees, thereby increasing the large viewing angle visibility of the liquid crystal display panel 10.
  • the polarization direction of the first polarizer 122 is parallel to the polarization direction of the second polarizer 113.
  • the first polarizer 122 is used to prevent ambient light from affecting the user experience, and the light emitted from the display screen 111 can smoothly pass through the first polarizer 122 and the second polarizer 113 to avoid the first polarizer 122 and the second polarizer 113.
  • the combination of the two polarizers 113 affects the normal display of the display module 11.
  • the second polarizer 113 is disposed between the touch layer 112 and the display screen 111 to prevent the second polarizer 113 from affecting the touch sensitivity of the touch layer 112.
  • a plurality of protrusions 16 are distributed on the side of the packaging cover 12 away from the display module 11.
  • the protrusion 16 can increase the surface roughness of the package cover 12 to reduce specular reflection of ambient light on the surface of the package cover 12 and improve user experience.
  • the protrusions 16 can be integrally formed with the packaging cover plate 12, or they can be formed on the packaging cover plate 12 by using a material different from the packaging cover plate 12; the protrusions 16 can be scattered or evenly distributed;
  • the shape of the vertical cross section can be semicircular, small semicircular, large semicircular, triangular, semi-elliptical, rectangular, etc., which are not listed here; the shapes of all protrusions 16 may be the same or different, and all convex The size from 16 can be the same or different.
  • the display screen 111 includes an array substrate 111a and a color filter substrate 111b that are arranged opposite to each other.
  • a second sealant 111d is provided between the array substrate 111a and the color filter substrate 111b.
  • 111d, the array substrate 111a and the color filter substrate 111b are enclosed to form an accommodating cavity, and a liquid crystal layer 111c is disposed in the accommodating cavity.
  • the touch layer 112 is disposed on the side of the color filter substrate 111b away from the array substrate 111a, and the third polarizer 114 is disposed on the side of the array substrate 111a away from the color filter substrate 111b .
  • the preparation material of the first sealant 13 may be the same as or different from the preparation material of the second sealant 111d, and the orthographic projection of the first sealant 13 on the second sealant 111d is located in the second frame.
  • the sealant 111d is used to prevent the second sealant 111d from affecting the normal display of the liquid crystal display panel 10.
  • the present application also provides a liquid crystal display device.
  • the backlight module 20 is disposed on the back side of the liquid crystal display panel 10, that is, the backlight module 20 is located on the side of the third polarizer 114 away from the array substrate 111 a to provide a light source for the liquid crystal display panel 10.
  • the beneficial effects of the present application are: the first polarizer 122 reduces the intensity and quantity of the ambient light reflected between the cover body 121 and the display module 11, and at the same time uses the quarter wave plate 15 and the first polarizer 122 is combined, so that the ambient light reflected between the cover body 121 and the display module 11 can no longer be injected into the human eyes, and the user will not see the whitening phenomenon even if the user looks at the liquid crystal display panel 10 from the perspective of the specular reflection. , Increase the visibility of the large viewing angle, and the first polarizer 122 and the quarter wave plate 15 will not affect the normal display of the liquid crystal display panel 10, which improves the user experience.

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Abstract

本申请公开了一种液晶显示面板及液晶显示装置，液晶显示面板包括显示模组以及设置于显示模组的出光侧的封装盖板；封装盖板包括所述盖板本体和第一偏光片，所述第一偏光片设置于所述盖板本体靠近所述显示模组的一侧或/和所述盖板本体远离所述显示模组的一侧。

Description

一种液晶显示面板及液晶显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种液晶显示面板及液晶显示装置。
 背景技术
随着大尺寸液晶显示的广泛应用，应用于商业显示的会议一体机以及电子白板等有着广泛的市场需求。传统的液晶显示器一般包括显示屏体和设置于显示屏体的出光侧的封装盖板，利用封装盖板对显示屏体进行保护。
然而，在传统的液晶显示器中，强度较大的环境光穿过封装盖板后会在封装盖板与显示屏体之间发生多次反射，在镜面反射的视角（如大视角）会发生泛白现象，导致用户体验较差。
 技术问题
现有的液晶显示器中，强度较大的环境光穿过封装盖板后会在封装盖板与显示屏体之间发生多次反射，在镜面反射的视角会发生泛白现象，导致用户体验较差的技术问题。
 技术解决方案
第一方面，本申请提供一种液晶显示面板，所述液晶显示面板包括：
显示模组；
设置于所述显示模组的出光侧的封装盖板；
其中，所述封装盖板包括所述盖板本体和第一偏光片，所述第一偏光片设置于所述盖板本体靠近所述显示模组的一侧或/和所述盖板本体远离所述显示模组的一侧。
在一些实施例中，所述封装盖板还包括设置于所述第一偏光片远离所述盖板本体的一侧的四分之一波片。
在一些实施例中，所述封装盖板与所述显示模组之间设置有第一框胶，所述第一框胶与所述封装盖板和所述显示模组粘接，所述第一框胶与所述封装盖板以及所述显示模组围合成一腔体。
在一些实施例中，所述显示模组包括显示屏体以及设置于所述显示屏体的出光侧的触控层，所述第一框胶与所述封装盖板以及所述触控层围合成所述腔体。
在一些实施例中，所述显示模组还包括设置于所述显示屏体靠近所述封装盖板的一侧的第二偏光片以及设置于所述显示屏体远离所述封装盖板的一侧的第三偏光片。
在一些实施例中，所述第二偏光片包括大视角偏光片，所述大视角偏光片的视角大于所述第三偏光片的视角。
在一些实施例中，所述第一偏光片的偏振方向与所述第二偏光片的偏振方向平行。
在一些实施例中，所述第二偏光片设置于所述触控层与所述显示屏体之间。
在一些实施例中，所述封装盖板远离所述显示模组的一侧上分布有多个凸起。
第二方面，本申请还提供一种液晶显示装置，所述液晶显示装置包括背光模块以及液晶显示面板，所述背光模块设置于所述液晶显示面板的背侧;所述液晶显示面板包括：
显示模组；
设置于所述显示模组的出光侧的封装盖板；
其中，所述封装盖板包括所述盖板本体和第一偏光片，所述第一偏光片设置于所述盖板本体靠近所述显示模组的一侧或/和所述盖板本体远离所述显示模组的一侧。
在一些实施例中，所述封装盖板还包括设置于所述第一偏光片远离所述盖板本体的一侧的四分之一波片。
在一些实施例中，所述封装盖板与所述显示模组之间设置有第一框胶，所述第一框胶与所述封装盖板和所述显示模组粘接，所述第一框胶与所述封装盖板以及所述显示模组围合成一腔体。
在一些实施例中，所述显示模组包括显示屏体以及设置于所述显示屏体的出光侧的触控层，所述第一框胶与所述封装盖板以及所述触控层围合成所述腔体。
在一些实施例中，所述显示模组还包括设置于所述显示屏体靠近所述封装盖板的一侧的第二偏光片以及设置于所述显示屏体远离所述封装盖板的一侧的第三偏光片。
在一些实施例中，所述第二偏光片包括大视角偏光片，所述大视角偏光片的视角大于所述第三偏光片的视角。
在一些实施例中，所述第一偏光片的偏振方向与所述第二偏光片的偏振方向平行。
在一些实施例中，所述第二偏光片设置于所述触控层与所述显示屏体之间。
在一些实施例中，所述封装盖板远离所述显示模组的一侧上分布有多个凸起。
 有益效果
通过第一偏光片降低在盖板本体与显示模组之间发生反射的环境光的强度和数量，同时利用四分之一波片与第一偏光片结合，使得在盖板本体与显示模组之间发生反射的环境光不能再射入到人眼中，用户即使在镜面反射的视角观看液晶显示面板也不会看到泛白现象产生，增加大视角可视性，并且第一偏光片与四分之一波片不会影响液晶显示面板的正常显示，提高用户体验。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请中液晶显示面板的第一种结构示意图；
图2为本申请中液晶显示面板的第二种结构示意图；
图3为本申请中液晶显示面板的第三种结构示意图；
图4为本申请中液晶显示面板的第四种结构示意图；
图5为本申请中液晶显示面板的第五种结构示意图；
图6为本申请一实施方式中液晶显示装置的结构示意图。
附图标记：
10、液晶显示面板；11、显示模组；111、显示屏体；111a、阵列基板；111b、彩膜基板；111c、液晶层；111d、第二框胶；112、触控层；113、第二偏光片；114、第三偏光片；12、封装盖板；121、盖板本体；122、第一偏光片；13、第一框胶；14、腔体；15、四分之一波片；16、凸起；20、背光模块。
 本发明的实施方式
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[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。
本申请针对现有的液晶显示器中，强度较大的环境光穿过封装盖板后会在封装盖板与显示屏体之间发生多次反射，在镜面反射的视角（如大视角）会发生泛白现象，导致用户体验较差的技术问题。
一种液晶显示面板，如图1所示，所述液晶显示面板10包括显示模组11以及设置于所述显示模组11的出光侧的封装盖板12。
具体的，所述显示模组11为液晶显示模组，所述封装盖板12包括所述盖板本体121和第一偏光片122。
其中，所述盖板本体121为透明板体，所述盖板本体121可以为透明塑料板体或透明玻璃板体。显示模组11在盖板本体121上的正投影位于盖板本体121内，即盖板本体121的尺寸大于显示模组11的尺寸，盖板本体121用于保护显示模组11以避免显示模组11直接受到挤压、碰撞以及与水汽接触。
具体的，所述第一偏光片122设置于所述盖板本体121靠近所述显示模组11的一侧或/和所述盖板本体121远离所述显示模组11的一侧。
需要说明的是，第一偏光片122为线偏光片，环境光一般近似于圆偏振光，环境光束穿过第一偏光片122时，环境光束中有接近一半的光不能通过第一偏光片122，仅有部分环境光穿过第一偏光片122后在盖板本体121与显示模组11之间发生多次反射，盖板本体121与显示模组11之间发生发射的环境光的数量和强度较小，用户即使在镜面反射的视角（如大视角）观看液晶显示面板10，也不会看到泛白现象产生，从而增加大视角可视性，提高用户体验。
需要说明的是，第一偏光片122可以通过光学胶层并以全贴合的方式贴合固定于盖板本体121上。
在一实施方式中，所述第一偏光片122设置于盖板本体121靠近显示模组11的一侧，以通过盖板本体121对第一偏光片122进行保护。
如图2，第一偏光片122也可以设置于盖板本体121远离显示模组11的一侧，环境光经过第一偏光片122时，环境光的强度会被第一偏光片122大幅度降低，随后环境光通过盖板本体121的过程中环境光的强度被进一步降低，从而进一步减小在盖板本体121与显示模组11之间发生反射的环境光的强度和数量。
需要说明的是，还可以在盖板本体121靠近显示模组11的一侧以及远离显示模组11的一侧上均设置第一偏光片122，此时两个第一偏光片122的偏振方向平行。
如图3所示，在一实施方式中，所述封装盖板12还包括设置于所述第一偏光片122远离所述盖板本体121的一侧的四分之一波片15。
需要说明的是，环境光穿过第一偏光片122后，环境光变为偏振方向与第一偏光片122的偏振方向相同的偏振光，随后环境光穿过四分之一波片15并被显示模组11反射回来，被反射的环境光再次穿过四分之一波片15后，此时，环境光的偏振方向与第一偏光片122的偏振方向正交，环境光不能穿过第一偏光片122进入到人眼中，因此用户也不会看到泛白现象，进一步增加大视角可视性，提高用户体验。
具体的，所述封装盖板12与所述显示模组11之间设置有第一框胶13，所述第一框胶13与所述封装盖板12和所述显示模组11粘接，所述第一框胶13与所述封装盖板12以及所述显示模组11围合成一腔体14。
需要说明的是，封装盖板12通过第一框胶13胶贴于显示模组11上。第一框胶13可以为紫外固化胶，通过在封装盖板12和显示模组11中的一者上涂布框胶材料，将封装盖板12贴合于显示模组11上后，框胶材料经过紫外光照射后固化形成第一框胶13。
具体的，第一框胶13设置于显示模组11的边缘区域且围绕显示模组11的发光区域设置，第一框胶13与封装盖板12以及显示模组11围合成的腔体14中可以充满空气，以防止在大气压的作用下导致封装盖板12向腔体14方向下陷。实际实施中，腔体14也可以为真空腔体。
需要说明的是，与封装盖板12采用光学胶层整面贴合于显示模组11上的方式相比，封装盖板12通过第一框胶13贴合于显示模组11上，且腔体14中无光学胶层，可以提高液晶显示面板10的光穿透率，同时结合第一偏光片122的设置，可以减少环境光在腔体14中与显示模组11发出的光线的混光，从而实现液晶显示面板在大视角下仍然有较好的可视性。
如图4所示，所述显示模组11包括显示屏体111以及设置于所述显示屏体111的出光侧的触控层112，所述第一框胶13与所述封装盖板12以及所述触控层112围合成所述腔体14。
需要说明的是，触控层112可以包括电容式触控组件、电阻式触控组件、声学式触控组件、力学式触控组件和光学式触控组件中的一种或多种；触控层112可以通过框胶框贴于显示屏体111上，触控层112还可以通过光学胶全面贴于显示屏体111上。
具体的，所述显示模组11还包括设置于所述显示屏体111靠近所述封装盖板12的一侧的第二偏光片113以及设置于所述显示屏体111远离所述封装盖板12的一侧的第三偏光片114。
需要说明的是，第三偏光片114用于将液晶显示面板10的背光源产生的光束转换为偏振光，第二偏光片113用于解析经液晶电调制后的偏振光，以产生明暗对比，从而产生显示画面，第二偏光片113的偏振方向可以与第三偏光片114的偏振方向相同或不同。
具体的，所述第二偏光片113包括大视角偏光片，所述大视角偏光片的视角大于所述第三偏光片114的视角。
需要说明的是，一般偏光片，如第三偏光片114的视角为30～60度，而大视角偏光片的视角可以远大于60度，从而增加液晶显示面板10的大视角可视性。
具体的，所述第一偏光片122的偏振方向与所述第二偏光片113的偏振方向平行。
需要说明的是，利用第一偏光片122防止环境光影响用户体验，同时显示屏体111发出的光线可以顺利通过第一偏光片122和第二偏光片113，以避免第一偏光片122和第二偏光片113的结合影响显示模组11的正常显示。
具体的，所述第二偏光片113设置于所述触控层112与所述显示屏体111之间，以避免第二偏光片113影响触控层112的触控灵敏性。
在一实施方式中，如图5，所述封装盖板12远离所述显示模组11的一侧上分布有多个凸起16。利用凸起16可以增加封装盖板12的表面粗糙度，以降低环境光在封装盖板12的表面的镜面反射，提高用户体验。
需要说明的是，凸起16可以与封装盖板12一体成型，也可以采用与封装盖板12不同的材料形成于封装盖板12上；凸起16可以零散分布或均匀分布；凸起16的竖向截面的形状可以为半圆形、小半圆形、大半圆形、三角性、半椭圆形、矩形等，在此不一一列举；所有凸起16的形状可以均相同或不同，所有凸起16的大小可以相同或不同。
具体的，所述显示屏体111包括相对设置的阵列基板111a和彩膜基板111b，所述阵列基板111a与所述彩膜基板111b之间设置有第二框胶111d，所述第二框胶111d与所述阵列基板111a以及所述彩膜基板111b围合成一容纳腔，所述容纳腔中设置有液晶层111c。
其中，所述触控层112设置于所述彩膜基板111b远离所述阵列基板111a的一侧，所述第三偏光片114设置于所述阵列基板111a远离所述彩膜基板111b的一侧。
具体的，所述第一框胶13的制备材料可以与第二框胶111d的制备材料相同或不同，所述第一框胶13在所述第二框胶111d上的正投影位于第二框胶111d内，以防止第二框胶111d影响液晶显示面板10的正常显示。
基于上述液晶显示面板10，本申请还提供一种液晶显示装置，如图6所示，所述液晶显示装置包括背光模块20以及如上述任一实施方式中所述的液晶显示面板10，所述背光模块20设置于所述液晶显示面板10的背侧，即所述背光模块20位于第三偏光片114远离阵列基板111a的一侧，以用于为所述液晶显示面板10提供光源。
本申请的有益效果为：通过第一偏光片122降低在盖板本体121与显示模组11之间发生反射的环境光的强度和数量，同时利用四分之一波片15与第一偏光片122结合，使得在盖板本体121与显示模组11之间发生反射的环境光不能再射入到人眼中，用户即使在镜面反射的视角观看液晶显示面板10也不会看到泛白现象产生，增加大视角可视性，并且第一偏光片122与四分之一波片15不会影响液晶显示面板10的正常显示，提高用户体验。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (18)

  1. 一种液晶显示面板，其中，所述液晶显示面板包括：
    显示模组；
    设置于所述显示模组的出光侧的封装盖板；
    其中，所述封装盖板包括所述盖板本体和第一偏光片，所述第一偏光片设置于所述盖板本体靠近所述显示模组的一侧或/和所述盖板本体远离所述显示模组的一侧。
  2. 根据权利要求1所述的液晶显示面板，其中，所述封装盖板还包括设置于所述第一偏光片远离所述盖板本体的一侧的四分之一波片。
  3. 根据权利要求1所述的液晶显示面板，其中，所述封装盖板与所述显示模组之间设置有第一框胶，所述第一框胶与所述封装盖板和所述显示模组粘接，所述第一框胶与所述封装盖板以及所述显示模组围合成一腔体。
  4. 根据权利要求3所述的液晶显示面板，其中，所述显示模组包括显示屏体以及设置于所述显示屏体的出光侧的触控层，所述第一框胶与所述封装盖板以及所述触控层围合成所述腔体。
  5. 根据权利要求4所述的液晶显示面板，其中，所述显示模组还包括设置于所述显示屏体靠近所述封装盖板的一侧的第二偏光片以及设置于所述显示屏体远离所述封装盖板的一侧的第三偏光片。
  6. 根据权利要求5所述的液晶显示面板，其中，所述第二偏光片包括大视角偏光片，所述大视角偏光片的视角大于所述第三偏光片的视角。
  7. 根据权利要求5所述的液晶显示面板，其中，所述第一偏光片的偏振方向与所述第二偏光片的偏振方向平行。
  8. 根据权利要求5所述的液晶显示面板，其中，所述第二偏光片设置于所述触控层与所述显示屏体之间。
  9. 根据权利要求1所述的液晶显示面板，其中，所述封装盖板远离所述显示模组的一侧上分布有多个凸起。
  10. 一种液晶显示装置，其中，所述液晶显示装置包括背光模块以及液晶显示面板，所述背光模块设置于所述液晶显示面板的背侧；所述液晶显示面板包括：
    显示模组；
    设置于所述显示模组的出光侧的封装盖板；
    其中，所述封装盖板包括所述盖板本体和第一偏光片，所述第一偏光片设置于所述盖板本体靠近所述显示模组的一侧或/和所述盖板本体远离所述显示模组的一侧。
  11. 根据权利要求10所述的液晶显示装置，其中，所述封装盖板还包括设置于所述第一偏光片远离所述盖板本体的一侧的四分之一波片。
  12. 根据权利要求10所述的液晶显示装置，其中，所述封装盖板与所述显示模组之间设置有第一框胶，所述第一框胶与所述封装盖板和所述显示模组粘接，所述第一框胶与所述封装盖板以及所述显示模组围合成一腔体。
  13. 根据权利要求12所述的液晶显示装置，其中，所述显示模组包括显示屏体以及设置于所述显示屏体的出光侧的触控层，所述第一框胶与所述封装盖板以及所述触控层围合成所述腔体。
  14. 根据权利要求13所述的液晶显示装置，其中，所述显示模组还包括设置于所述显示屏体靠近所述封装盖板的一侧的第二偏光片以及设置于所述显示屏体远离所述封装盖板的一侧的第三偏光片。
  15. 根据权利要求14所述的液晶显示装置，其中，所述第二偏光片包括大视角偏光片，所述大视角偏光片的视角大于所述第三偏光片的视角。
  16. 根据权利要求14所述的液晶显示面板，其中，所述第一偏光片的偏振方向与所述第二偏光片的偏振方向平行。
  17. 根据权利要求14所述的液晶显示装置，其中，所述第二偏光片设置于所述触控层与所述显示屏体之间。
  18. 根据权利要求10所述的液晶显示装置，其中，所述封装盖板远离所述显示模组的一侧上分布有多个凸起。
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