WO2023087369A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

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Publication number
WO2023087369A1
WO2023087369A1 PCT/CN2021/133580 CN2021133580W WO2023087369A1 WO 2023087369 A1 WO2023087369 A1 WO 2023087369A1 CN 2021133580 W CN2021133580 W CN 2021133580W WO 2023087369 A1 WO2023087369 A1 WO 2023087369A1
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WO
WIPO (PCT)
Prior art keywords
substrate
compensation film
liquid crystal
type compensation
polarizer
Prior art date
Application number
PCT/CN2021/133580
Other languages
English (en)
French (fr)
Inventor
何瑞
叶文龙
梅新东
程薇
Original Assignee
武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US17/620,714 priority Critical patent/US20240027800A1/en
Publication of WO2023087369A1 publication Critical patent/WO2023087369A1/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
    • G02F1/1323—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
    • G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
    • G02F1/13345—Network or three-dimensional gels
    • 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
    • G02F1/13363—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
    • 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
    • G02F1/133634—Birefringent elements, e.g. for optical compensation the refractive index Nz perpendicular to the element surface being different from in-plane refractive indices Nx and Ny, e.g. biaxial or with normal optical axis
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • 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
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • the dimming liquid crystal cell includes upper and lower substrates, a polymer network arranged between the upper and lower substrates, and dimming liquid crystal molecules distributed in the polymer network. Since the upper and lower substrates are glass substrates, the overall thickness and weight of the anti-peeping display Both increase, which is contrary to the current trend of thinner and lighter displays.
  • the embodiment of the present application provides a display panel and a display device to solve the problem that the upper and lower substrates in the dimming liquid crystal cell of the existing display panel are both glass substrates, resulting in an increase in its overall thickness and weight, which is not conducive to the realization of light and thin display panels. technical issues.
  • the application provides a display panel, including:
  • the first polarizer is arranged on one side of the display liquid crystal cell
  • the dimming liquid crystal cell is arranged on the side of the display liquid crystal cell away from the first polarizer, and the dimming liquid crystal cell includes:
  • the second substrate is arranged opposite to the first substrate, and the second substrate is arranged on a side of the first substrate close to the first polarizer;
  • the dimming liquid crystal layer disposed between the first substrate and the second substrate, the dimming liquid crystal layer comprising a polymer network and a plurality of dimming liquid crystal molecules distributed in the polymer network;
  • the first phase compensation film group is arranged between the display liquid crystal cell and the second polarizer, and the first phase compensation film group includes at least a first C-type compensation film group;
  • the second polarizer is arranged on the side of the dimming liquid crystal cell away from the first polarizer;
  • the third polarizer is arranged on the side of the display liquid crystal cell away from the first polarizer.
  • the first substrate and the second substrate are transparent flexible substrates, and the phase retardation of the first C-type compensation film group in the film thickness direction is the same as that of the first substrate and the second substrate in the film thickness direction.
  • the sum of the phase delays in the thickness direction ranges from -30 nm to 30 nm.
  • the first C-type compensation film group includes a first C-type compensation film, and the first C-type compensation film is disposed on a side of the first substrate away from the second substrate, Or, the first C-type compensation film is disposed on a side of the first substrate close to the second substrate.
  • the first C-type compensation film group includes a second C-type compensation film, and the second C-type compensation film is disposed on a side of the second substrate away from the first substrate, Or, the second C-type compensation film is disposed on a side of the second substrate close to the first substrate.
  • the first C-type compensation film group further includes a second C-type compensation film, and the second C-type compensation film is disposed on a side of the second substrate away from the first substrate, Or, the second C-type compensation film is disposed on a side of the second substrate close to the first substrate;
  • the range of the sum of the phase retardation of the first C-type compensation film in the film thickness direction and the phase retardation of the first substrate in the film thickness direction is -30 nanometers to 30 nanometers
  • the second The sum of the phase retardation of the C-type compensation film in the film thickness direction and the phase retardation of the second substrate in the film thickness direction ranges from -30 nanometers to 30 nanometers.
  • the thickness of the first C-type compensation film group ranges from 1 micron to 10 microns.
  • the materials of the first substrate and the second substrate include transparent polyimide, polyethylene terephthalate, polyethylene naphthalate and cycloolefin polymer any one or a combination of them.
  • the thickness of the first substrate and the second substrate ranges from 10 microns to 30 microns.
  • the first phase compensation film group further includes an A-type compensation film group, and the A-type compensation film group is located on a side of the first C-type compensation film group that is far away from the first polarizer. side.
  • the display liquid crystal box includes:
  • the fourth substrate is arranged opposite to the third substrate, and the fourth substrate is arranged on a side of the third substrate close to the first polarizer;
  • the display liquid crystal layer disposed between the third substrate and the fourth substrate, the display liquid crystal layer including a plurality of display liquid crystal molecules;
  • the second phase compensation film group is arranged between the light-adjustable liquid crystal cell and the first polarizer, and the second phase compensation film group includes at least a second C-type compensation film group;
  • the third substrate and the fourth substrate are transparent flexible substrates, and the phase retardation of the second C-type compensation film group in the film thickness direction is the same as that of the third substrate and the fourth substrate in the film thickness direction.
  • the sum of the phase delays in the thickness direction ranges from -30 nm to 30 nm.
  • the sum of the phase retardation of the first C-type compensation film group in the film thickness direction and the phase retardation of the first substrate and the second substrate in the film thickness direction is zero.
  • the application provides a display panel, including:
  • the first polarizer is arranged on one side of the display liquid crystal cell
  • the dimming liquid crystal cell is arranged on the side of the display liquid crystal cell away from the first polarizer, and the dimming liquid crystal cell includes:
  • the second substrate is arranged opposite to the first substrate, and the second substrate is arranged on a side of the first substrate close to the first polarizer;
  • the dimming liquid crystal layer disposed between the first substrate and the second substrate, the dimming liquid crystal layer comprising a polymer network and a plurality of dimming liquid crystal molecules distributed in the polymer network;
  • the first phase compensation film group is arranged between the display liquid crystal cell and the second polarizer, and the first phase compensation film group includes at least a first C-type compensation film group;
  • the second polarizer is arranged on the side of the dimming liquid crystal cell away from the first polarizer;
  • the first substrate and the second substrate are transparent flexible substrates, and the phase retardation of the first C-type compensation film group in the film thickness direction is the same as that of the first substrate and the second substrate in the film thickness direction.
  • the sum of the phase delays in the thickness direction ranges from -30 nm to 30 nm.
  • the first C-type compensation film group includes a first C-type compensation film, and the first C-type compensation film is disposed on a side of the first substrate away from the second substrate, Or, the first C-type compensation film is disposed on a side of the first substrate close to the second substrate.
  • the first C-type compensation film group includes a second C-type compensation film, and the second C-type compensation film is disposed on a side of the second substrate away from the first substrate, Or, the second C-type compensation film is disposed on a side of the second substrate close to the first substrate.
  • the first C-type compensation film group further includes a second C-type compensation film, and the second C-type compensation film is disposed on a side of the second substrate away from the first substrate , or, the second C-type compensation film is disposed on a side of the second substrate close to the first substrate;
  • the range of the sum of the phase retardation of the first C-type compensation film in the film thickness direction and the phase retardation of the first substrate in the film thickness direction is -30 nanometers to 30 nanometers
  • the second The sum of the phase retardation of the C-type compensation film in the film thickness direction and the phase retardation of the second substrate in the film thickness direction ranges from -30 nanometers to 30 nanometers.
  • the thickness of the first C-type compensation film group ranges from 1 micron to 10 microns.
  • the materials of the first substrate and the second substrate include transparent polyimide, polyethylene terephthalate, polyethylene naphthalate and cycloolefin polymer any one or a combination of them.
  • the thickness of the first substrate and the second substrate ranges from 10 microns to 30 microns.
  • the first phase compensation film group further includes an A-type compensation film group, and the A-type compensation film group is located on a side of the first C-type compensation film group that is far away from the first polarizer. side.
  • the display liquid crystal box includes:
  • the fourth substrate is arranged opposite to the third substrate, and the fourth substrate is arranged on a side of the third substrate close to the first polarizer;
  • the display liquid crystal layer disposed between the third substrate and the fourth substrate, the display liquid crystal layer including a plurality of display liquid crystal molecules;
  • the second phase compensation film group is arranged between the light-adjustable liquid crystal cell and the first polarizer, and the second phase compensation film group includes at least a second C-type compensation film group;
  • the third substrate and the fourth substrate are transparent flexible substrates, and the phase retardation of the second C-type compensation film group in the film thickness direction is the same as that of the third substrate and the fourth substrate in the film thickness direction.
  • the sum of the phase delays in the thickness direction ranges from -30 nm to 30 nm.
  • the present application provides a display device, including the above-mentioned display panel and a backlight module, and the backlight module is arranged on one side of the display panel;
  • the display panel includes:
  • the first polarizer is arranged on one side of the display liquid crystal cell
  • the dimming liquid crystal cell is arranged on the side of the display liquid crystal cell away from the first polarizer, and the dimming liquid crystal cell includes:
  • the second substrate is arranged opposite to the first substrate, and the second substrate is arranged on a side of the first substrate close to the first polarizer;
  • the dimming liquid crystal layer disposed between the first substrate and the second substrate, the dimming liquid crystal layer comprising a polymer network and a plurality of dimming liquid crystal molecules distributed in the polymer network;
  • the first phase compensation film group is arranged between the display liquid crystal cell and the second polarizer, and the first phase compensation film group includes at least a first C-type compensation film group;
  • the second polarizer is arranged on the side of the dimming liquid crystal cell away from the first polarizer;
  • the first substrate and the second substrate are transparent flexible substrates, and the phase retardation of the first C-type compensation film group in the film thickness direction is the same as that of the first substrate and the second substrate in the film thickness direction.
  • the sum of the phase delays in the thickness direction ranges from -30 nm to 30 nm.
  • the display panel and the display device provided by the present application replace the first substrate and the second substrate of the dimming liquid crystal cell with the glass substrate in the prior art with a transparent flexible substrate, and based on this
  • the first phase compensation film group is added on the top
  • the first phase compensation film group is arranged between the display liquid crystal cell and the second polarizer
  • the first phase compensation film group includes at least the first C-type compensation film group, which is used to compensate the polarized light passing through
  • the phase difference caused by the phase delay in the transparent flexible substrate can significantly reduce the thickness and weight of the display panel without affecting the anti-peeping effect, which is conducive to realizing light and thin.
  • FIG. 1 is a schematic cross-sectional structure diagram of a first display panel provided by an embodiment of the present application
  • Fig. 2 is a schematic cross-sectional structure diagram of a second display panel provided by an embodiment of the present application
  • FIG. 3 is a schematic cross-sectional structure diagram of a third display panel provided by an embodiment of the present application.
  • Fig. 4 is a schematic cross-sectional structure diagram of a fourth display panel provided by an embodiment of the present application.
  • FIG. 5 is a schematic cross-sectional structure diagram of a display liquid crystal cell provided in an embodiment of the present application.
  • Fig. 1 is a schematic cross-sectional structure diagram of the first display panel provided by the embodiment of the present application; the embodiment of the present application provides a display panel, the display panel includes a display liquid crystal cell 1, a first polarizer 2, The dimming liquid crystal cell 3 and the second polarizer 4, the first polarizer 2 is arranged on one side of the display liquid crystal cell 1, and the dimming liquid crystal cell 3 is arranged on the display liquid crystal cell 1 away from the second polarizer One side of the polarizer 2 , the second polarizer 4 is arranged on the side of the dimming liquid crystal cell 3 away from the first polarizer 2 .
  • the first polarizer 2 is arranged opposite to the second polarizer 4, the optical axis direction of the first polarizer 2 is parallel to the optical axis direction of the second polarizer 4, and the dimming liquid crystal cell 3 It is arranged between the first polarizer 2 and the second polarizer 4 .
  • the dimming liquid crystal cell 3 includes a first substrate 31, a second substrate 32, a dimming liquid crystal layer 33 and a first phase compensation module, the first substrate 31 is opposite to the second substrate 32, and the first The second substrate 32 is arranged on the side of the first substrate 31 close to the first polarizer 2, and the dimming liquid crystal layer 33 is arranged between the first substrate 31 and the second substrate 32.
  • the first phase compensation module is arranged between the display liquid crystal cell 1 and the second polarizer 4; wherein, the dimming liquid crystal layer 33 includes a polymer network 331 and a polymer network distributed in the polymer network 331 A plurality of dimming liquid crystal molecules 332 , wherein the polymer network 331 is arranged along a first direction w, and the first direction w is inclined relative to the normal of the first polarizer 2 .
  • the first mode may be an anti-peeping display mode
  • the second mode may be a normal display mode
  • the light-adjusting liquid crystal layer 33 is used to make the first light 61 incident along the normal direction z of the first polarizer 2 pass through the second polarizer 4 in the first mode, and make it
  • the second light 62 incident on the normal direction z of the first polarizer 2 is blocked or partially blocked by the second polarizer 4;
  • One direction is different, so that more light can pass through the second polarizer 4, so as to improve the viewing angle range of the display panel in the second mode, so that the display panel in the second mode
  • the viewing angle of the display panel is larger than the viewing angle of the display panel in the first mode.
  • the long axes of the dimming liquid crystal molecules 332 are arranged along the first direction w; in the second mode, the long axes of the dimming liquid crystal molecules 332 are arranged along the second direction, the second The two directions are different from the first direction w, and the viewing angle of the display panel in the first mode is smaller than the viewing angle of the display panel in the second mode.
  • the tilt direction of the dimming liquid crystal molecules 332 is in the yz plane, and the first light 61 and the second light 62 propagate in the xz plane.
  • the first light 61 since its polarization direction only passes through the long axis of the dimming liquid crystal molecule 332, no phase difference occurs after the first light 61 passes through the dimming liquid crystal molecule 332, that is, the polarization direction is different.
  • the polarization direction of the second light 62 is deflected by 90 degrees after passing through the dimming liquid crystal molecules 332, and the second light 62 is deflected into the third light 63, and the polarization direction changes, so that it cannot directly pass through
  • the second polarizer 4, the third light 63 will be blocked by the second polarizer 4, so that the purpose of reducing the brightness of the side viewing angle can be achieved.
  • the user can only watch the display panel from the front view angle , while for other viewing angles, the display panel
  • the first substrate 31 and the second substrate 32 are transparent and flexible substrates.
  • both the first substrate 31 and the second substrate 32 of the dimming liquid crystal cell 3 are made of glass in the prior art. Substituting the substrate with a transparent and flexible substrate can significantly reduce the thickness and weight of the display panel, which is beneficial to realize light and thin.
  • the transparent flexible substrate is a polymer film
  • phase difference occurs on the upper surface, resulting in a phase difference, that is to say, when the polarized light emitted from the display liquid crystal cell 1 passes through the first substrate 31 and the second substrate 32, birefringence will occur, resulting in a phase delay, A phase difference occurs.
  • the present application adds the first C-type compensation film group 34, and makes the phase retardation of the first C-type compensation film group 34 in the film thickness direction different from that of the first substrate 31 and the first substrate 31.
  • the sum of the phase retardation of the second substrate 32 in the film thickness direction ranges from -30 nanometers to 30 nanometers, which is used to compensate the phase difference caused by the phase delay when the polarized light passes through the transparent flexible substrate, without affecting the anti-peeping effect .
  • the sum of the phase retardation of the first C-type compensation film group 34 in the film thickness direction and the phase retardation of the first substrate 31 and the second substrate 32 in the film thickness direction is zero, To fully compensate the phase difference caused by the phase delay.
  • the first C-type compensation film group 34 includes a first C-type compensation film 341 , and the first C-type compensation film 341 is disposed away from the first substrate 31 One side of the second substrate 32, or, the first C-type compensation film 341 is disposed on the side of the first substrate 31 close to the second substrate 32; wherein, the first C-type compensation film
  • the range of the phase retardation of 341 in the film thickness direction and the phase retardation of the first substrate 31 and the second substrate 32 in the film thickness direction is -30 nanometers to 30 nanometers, so that the first substrate 31 A C-type compensation film 341 can simultaneously compensate the phase retardation in the film thickness direction of the first substrate 31 and the second substrate 32 .
  • FIG. 2 is a schematic cross-sectional structure diagram of a second display panel provided in an embodiment of the present application.
  • the difference between FIG. 2 and FIG. 1 is that the first C-type compensation film
  • the group 34 includes a second C-type compensation film 342, the second C-type compensation film 342 is disposed on the side of the second substrate 32 away from the first substrate 31, or, the second C-type compensation film 342 It is arranged on the side of the second substrate 32 close to the first substrate 31; wherein, the phase retardation of the second C-type compensation film 342 in the film thickness direction is the same as that of the first substrate 31 and the first substrate 342.
  • the range of the sum of phase retardation amounts of the two substrates 32 in the film thickness direction is -30 nanometers to 30 nanometers, so that the second C-type compensation film 342 can simultaneously compensate the first substrate 31 and the second substrate 32 Phase retardation in the film thickness direction.
  • FIG. 3 is a schematic cross-sectional structure diagram of a third display panel provided in an embodiment of the present application.
  • the difference between FIG. 3 and FIG. 1 is that the first C-type compensation film
  • the group 34 includes a first C-type compensation film 341 and a second C-type compensation film 342, and the phase retardation of the first C-type compensation film 341 in the film thickness direction is the same as that of the first substrate 31 in the film thickness direction.
  • the range of the sum of the phase delays is -30 nanometers to 30 nanometers, the difference between the phase delay of the second C-type compensation film 342 in the film thickness direction and the phase delay of the second substrate 32 in the film thickness direction and are in the range of -30 nanometers to 30 nanometers, so that the first C-type compensation film 341 can compensate the phase retardation of the first substrate 31 in the film thickness direction, and the second C-type compensation film 342 can The phase retardation of the second substrate 32 in the film thickness direction is compensated.
  • the thickness of the C-type compensation film group 34 makes the phase retardation of the first C-type compensation film group 34 in the film thickness direction and the phase retardation of the first substrate 31 and the second substrate 32 in the film thickness direction
  • the sum of the quantities ranges from -30 nm to 30 nm.
  • the thicknesses of the first C-type compensation film 341 and the second C-type compensation film 342 can be adjusted separately so that the phase retardation of the first C-type compensation film 341 in the film thickness direction is the same as the
  • the range of the sum of the phase retardation of the first substrate 31 in the film thickness direction is -30 nanometers to 30 nanometers
  • the phase retardation of the second C-type compensation film 342 in the film thickness direction is the same as that of the second substrate 32
  • the range of the sum of phase retardation in the film thickness direction is -30 nanometers to 30 nanometers.
  • the thickness of the first C-type compensation film group 34 ranges from 1 micrometer to 10 micrometers, so as to ensure that it will not cause a significant increase in the thickness and weight of the display panel, which is conducive to realizing light and thin.
  • the sum of the phase retardation of the first C-type compensation film 341 in the film thickness direction and the phase retardation of the first substrate 31 in the film thickness direction is zero, and the second C-type compensation film The sum of the phase retardation of 342 in the film thickness direction and the phase retardation of the second substrate 32 in the film thickness direction is zero.
  • the materials of the first substrate 31 and the second substrate 32 include transparent polyimide (CPI), polyethylene terephthalate (PET), polyethylene naphthalate (PEN) and cycloolefin polymer (COP), of course, the first substrate 31 and the second substrate 32 can also choose other materials, this application does not limited.
  • CPI transparent polyimide
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • COP cycloolefin polymer
  • the thickness range of the first substrate 31 and the second substrate 32 is 10 micrometers to 30 micrometers.
  • glass substrates its thickness is usually greater than 300 microns
  • the thickness of the first substrate 31 and the second substrate 32 are significantly reduced, and at the same time, the weight of the first substrate 31 and the second substrate 32 is also reduced is remarkably reduced, which is beneficial to realizing thinning of the display panel.
  • the display panel also includes a third polarizer 5 arranged on the side of the display liquid crystal cell 1 away from the first polarizer 2, and the optical axis direction of the third polarizer 5 is the same as that of the first polarizer 2.
  • the direction of the optical axis of a polarizer 2 is vertical.
  • the dimming liquid crystal cell 3 further includes a first electrode layer 35 and a second electrode layer 36, the first electrode layer 35 is disposed on the side of the first substrate 31 close to the second substrate 32, The second electrode layer 36 is disposed on the side of the second substrate 32 close to the first substrate 31, and the first electrode layer 35 and the second electrode layer 36 are used to apply voltage to control the liquid crystal The long axis of the molecule switches between the first orientation and the second orientation.
  • FIG. 4 is a schematic cross-sectional structure diagram of a fourth display panel provided in the embodiment of the present application; when the first C-type compensation film 341 is disposed on the first substrate 31 close to the On one side of the second substrate 32 , the first C-type compensation film 341 and the first electrode layer 35 can be sequentially stacked on the side of the first substrate 31 close to the second substrate 32 .
  • the second C-type compensation film 342 when the second C-type compensation film 342 is disposed on the side of the second substrate 32 close to the first substrate 31, the second C-type compensation film 342 and the second electrode layer 36 can be sequentially stacked on the side of the second substrate 32 close to the first substrate 31 .
  • the dimming liquid crystal cell 3 further includes a first alignment layer 37 and a second alignment layer 38, the first alignment layer 37 is disposed on the side of the first electrode layer 35 close to the second substrate 32 , the second alignment layer 38 is disposed on the side of the second electrode layer 36 close to the first substrate 31, the first alignment layer 37 and the second alignment layer 38 are used for dimming the light
  • the liquid crystal molecules 332 provide an alignment direction, wherein both the pre-tilt direction of the first alignment layer 37 and the pre-tilt direction of the second alignment layer 38 are parallel to the first direction.
  • the first phase compensation module further includes an A-type compensation film group, and the A-type compensation film group is located on the side of the first C-type compensation film group 34 away from the first polarizer 2, so
  • Re phase retardation may be generated in the direction of the film surface, and the A-type compensation film is used to perform phase compensation for the Re phase retardation that may exist in the transparent flexible substrate.
  • FIG. 5 is a schematic cross-sectional structure diagram of a display liquid crystal cell provided by an embodiment of the present application; the display liquid crystal cell 1 includes a third substrate 11, a fourth substrate 12, a display liquid crystal layer 13 and a first Two-phase compensation module.
  • the fourth substrate 12 is arranged opposite to the third substrate 11, the fourth substrate 12 is arranged on the side of the third substrate 11 close to the first polarizer 2, and the display liquid crystal layer 13 is arranged on Between the third substrate 11 and the fourth substrate 12, the display liquid crystal layer 13 includes a plurality of display liquid crystal molecules 131, and the second phase compensation film group is arranged on the dimming liquid crystal cell 3 and the Between the first polarizer 2.
  • the third substrate 11 and the fourth substrate 12 are transparent flexible substrates.
  • the third substrate 11 and the fourth substrate 12 of the display liquid crystal cell 1 are made of glass in the prior art. Replacing the substrate with a transparent flexible substrate can significantly reduce the thickness and weight of the display panel, which is conducive to realizing light and thin.
  • the second C-type compensation film group 14 is added, and the phase retardation of the second C-type compensation film group 14 in the film thickness direction is the same as that of the third substrate 11 and the fourth substrate. 12
  • the sum of the phase retardation in the film thickness direction ranges from -30nm to 30nm, which is used to compensate the phase difference caused by the phase delay when the polarized light passes through the transparent flexible substrate, without affecting the anti-peeping effect.
  • the principle can be Referring to the specific description of the phase compensation performed by the first C-type compensation film group 34 on the third substrate 11 and the fourth substrate 12 in the above embodiment, details will not be described here.
  • the sum of the phase retardation of the second C-type compensation film group 14 in the film thickness direction and the phase retardation of the third substrate 11 and the fourth substrate 12 in the film thickness direction range is zero.
  • the display liquid crystal cell 1 further includes a third electrode layer 15 and a fourth electrode layer 16, the third electrode layer 15 is arranged on the side of the third substrate 11 close to the fourth substrate 12, so The third electrode layer 15 is arranged on the side of the fourth substrate 12 close to the third substrate 11, the third electrode layer 15 and the fourth electrode layer 16 are used to apply voltage to control the display liquid crystal Molecules 131 are deflected.
  • the display liquid crystal cell 1 further includes a third alignment layer 17 and a fourth alignment layer 18, the third alignment layer 17 is disposed on the side of the third electrode layer 15 close to the fourth substrate 12, The fourth alignment layer 18 is disposed on the side of the fourth electrode layer 16 close to the third substrate 11, the third alignment layer 17 and the fourth alignment layer 18 are used for displaying liquid crystal molecules 131 provides an alignment direction.
  • An embodiment of the present application also provides a display device, which includes the display panel and a backlight module in the above-mentioned embodiments, and the backlight module is arranged on one side of the display panel to serve as the display panel for the display panel. Provide backlight.
  • the backlight module includes a collimated backlight source
  • the method along the first polarizer 2 can be increased.
  • the amount of light incident in the linear direction thereby increasing the display brightness at the front viewing angle in the first mode, so as to improve the display effect in the first mode, and when the display panel is in the second mode, Since the alignment direction of the light-adjusting liquid crystal molecules 332 is different from the inclination direction of the polymer network 331, it will scatter the light passing through the light-adjusting liquid crystal layer 33, so that the light of the collimated backlight source diverges.
  • the display device still has a good display effect at a wide viewing angle in the second mode.
  • the backlight module provided in the embodiment of the present application is not limited to a collimated backlight, but may also be other conventional backlights, such as side-type backlights, which are not limited here.
  • the display panel and the display device provided by the embodiment of the present application replace the first substrate and the second substrate of the dimming liquid crystal cell by the glass substrate in the prior art with a transparent flexible substrate, and on this basis
  • the first phase compensation film group is added.
  • the first phase compensation film group is arranged between the display liquid crystal cell and the second polarizer.
  • the first phase compensation film group includes at least the first C-type compensation film group for compensating polarized light passing through the transparent
  • the phase difference caused by the phase delay in the flexible substrate can significantly reduce the thickness and weight of the display panel without affecting the anti-peeping effect, which is conducive to realizing light and thin.

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Abstract

一种显示面板及显示装置，显示面板包括显示液晶盒（1）、第一偏光片（2）、调光液晶盒（3）和第二偏光片（4），将调光液晶盒（3）的第一基板（31）和第二基板（32）均由玻璃基板替换成透明柔性基板，并增设至少包括第一C型补偿膜组（34）的第一相位补偿膜组，用于补偿偏振光（61，62，63）经过透明柔性基板（31，32）时发生相位延迟而导致的相位差，降低了显示面板的厚度和重量。

Description

显示面板及显示装置 技术领域
本申请涉及显示技术领域，尤其涉及一种显示面板及显示装置。
 背景技术
在常规显示液晶盒的一侧增加一个用来控制视角的调光液晶盒，可使显示面板在窄视角的隐私模式和宽视角的共享模式之间自由切换。其中，调光液晶盒包括上下基板以及设置于上下基板之间的聚合物网络和分布于聚合物网络中的调光液晶分子，由于上下基板均为玻璃基板，导致防窥显示器的整体厚度和重量均增加，与目前显示器的轻薄化趋势相违背。
 技术问题
本申请实施例提供一种显示面板及显示装置，以解决现有的显示面板因调光液晶盒中的上下基板均为玻璃基板，导致其整体厚度和重量均增加，不利于实现显示面板轻薄化的技术问题。
 技术解决方案
为解决上述问题，本申请提供的技术方案如下：
本申请提供一种显示面板，包括：
显示液晶盒；
第一偏光片，设置于所述显示液晶盒的一侧；
调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
第一基板；
第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；
第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；以及
第三偏光片，设置于所述显示液晶盒远离所述第一偏光片的一侧。
其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
根据本申请提供的显示面板，所述第一C型补偿膜组包括第一C型补偿膜，所述第一C型补偿膜设置于所述第一基板远离所述第二基板的一侧，或，所述第一C型补偿膜设置于所述第一基板靠近所述第二基板的一侧。
根据本申请提供的显示面板，所述第一C型补偿膜组包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧。
根据本申请提供的显示面板，述第一C型补偿膜组还包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧；
其中，所述第一C型补偿膜在膜厚方向上的相位延迟量与所述第一基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜在膜厚方向上的相位延迟量与所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
根据本申请提供的显示面板，所述第一C型补偿膜组的厚度范围为1微米~10微米。
根据本申请提供的显示面板，所述第一基板和所述第二基板的材料包括透明聚酰亚胺、聚对苯二甲酸乙二醇酯、聚萘二甲酸乙二醇酯和环烯烃聚合物中的任意一种或多种的组合。
根据本申请提供的显示面板，所述第一基板和所述第二基板的厚度范围为10微米~30微米。
根据本申请提供的显示面板，所述第一相位补偿膜组还包括A型补偿膜组，所述A型补偿膜组位于所述第一C型补偿膜组远离所述第一偏光片的一侧。
根据本申请提供的显示面板，所述显示液晶盒包括：
第三基板；
第四基板，与所述第三基板相对设置，所述第四基板设置于所述第三基板靠近所述第一偏光片的一侧；
显示液晶层，设置于所述第三基板和所述第四基板之间，所述显示液晶层包括多个显示液晶分子；以及
第二相位补偿膜组，设置于所述调光液晶盒和所述第一偏光片之间，所述第二相位补偿膜组至少包括第二C型补偿膜组；
其中，所述第三基板和所述第四基板为透明柔性基板，所述第二C型补偿膜组在膜厚方向上的相位延迟量与所述第三基板和所述第四基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
根据本申请提供的显示面板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和为零。
本申请提供一种显示面板，包括：
显示液晶盒；
第一偏光片，设置于所述显示液晶盒的一侧；
调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
第一基板；
第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；以及
第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；
其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
根据本申请提供的显示面板，所述第一C型补偿膜组包括第一C型补偿膜，所述第一C型补偿膜设置于所述第一基板远离所述第二基板的一侧，或，所述第一C型补偿膜设置于所述第一基板靠近所述第二基板的一侧。
根据本申请提供的显示面板，所述第一C型补偿膜组包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧。
根据本申请提供的显示面板，所述第一C型补偿膜组还包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧；
其中，所述第一C型补偿膜在膜厚方向上的相位延迟量与所述第一基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜在膜厚方向上的相位延迟量与所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
根据本申请提供的显示面板，所述第一C型补偿膜组的厚度范围为1微米~10微米。
根据本申请提供的显示面板，所述第一基板和所述第二基板的材料包括透明聚酰亚胺、聚对苯二甲酸乙二醇酯、聚萘二甲酸乙二醇酯和环烯烃聚合物中的任意一种或多种的组合。
根据本申请提供的显示面板，所述第一基板和所述第二基板的厚度范围为10微米~30微米。
根据本申请提供的显示面板，所述第一相位补偿膜组还包括A型补偿膜组，所述A型补偿膜组位于所述第一C型补偿膜组远离所述第一偏光片的一侧。
根据本申请提供的显示面板，所述显示液晶盒包括：
第三基板；
第四基板，与所述第三基板相对设置，所述第四基板设置于所述第三基板靠近所述第一偏光片的一侧；
显示液晶层，设置于所述第三基板和所述第四基板之间，所述显示液晶层包括多个显示液晶分子；以及
第二相位补偿膜组，设置于所述调光液晶盒和所述第一偏光片之间，所述第二相位补偿膜组至少包括第二C型补偿膜组；
其中，所述第三基板和所述第四基板为透明柔性基板，所述第二C型补偿膜组在膜厚方向上的相位延迟量与所述第三基板和所述第四基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
本申请提供一种显示装置，包括上述显示面板和背光模组，所述背光模组设置于所述显示面板的一侧；
所述显示面板包括：
显示液晶盒；
第一偏光片，设置于所述显示液晶盒的一侧；
调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
第一基板；
第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；以及
第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；
其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
 有益效果
本申请的有益效果为：本申请提供的显示面板及显示装置，通过将调光液晶盒的第一基板和第二基板均由现有技术中的玻璃基板替换成透明柔性基板，并在此基础上增设第一相位补偿膜组，第一相位补偿膜组设置于显示液晶盒和第二偏光片之间，第一相位补偿膜组至少包括第一C型补偿膜组，用于补偿偏振光经过透明柔性基板时发生相位延迟而导致的相位差，从而在不影响防窥效果的同时，能够显著地降低显示面板的厚度和重量，有利于实现轻薄化。
 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申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的第一种显示面板的截面结构示意图；
图2是本申请实施例提供的第二种显示面板的截面结构示意图；
图3是本申请实施例提供的第三种显示面板的截面结构示意图；
图4是本申请实施例提供的第四种显示面板的截面结构示意图；
图5是本申请实施例提供的一种显示液晶盒的截面结构示意图。
附图标记说明：
1、显示液晶盒；2、第一偏光片；3、调光液晶盒；4、第二偏光片；5、第三偏光片；
11、第三基板；12、第四基板；13、显示液晶层；131、显示液晶分子；14、第二C型补偿膜组；15、第三电极层；16、第四电极层；17、第三配向层；18、第四配向层；
31、第一基板；32、第二基板；33、调光液晶层；331、聚合物网络；332、调光液晶分子；34、第一C型补偿膜组；341、第一C型补偿膜；342、第二C型补偿膜；35、第一电极层；36、第二电极层；37、第一配向层；38、第二配向层；
61、第一光线；62、第二光线；63、第三光线。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
请参阅图1，图1是本申请实施例提供的第一种显示面板的截面结构示意图；本申请实施例提供一种显示面板，所述显示面板包括显示液晶盒1、第一偏光片2、调光液晶盒3和第二偏光片4，所述第一偏光片2设置于所述显示液晶盒1的一侧，所述调光液晶盒3设置于所述显示液晶盒1远离所述第一偏光片2的一侧，所述第二偏光片4设置于所述调光液晶盒3远离所述第一偏光片2的一侧。
所述第一偏光片2与所述第二偏光片4相对设置，所述第一偏光片2的光轴方向与所述第二偏光片4的光轴方向平行，所述调光液晶盒3设置于所述第一偏光片2与所述第二偏光片4之间。
所述调光液晶盒3包括第一基板31、第二基板32、调光液晶层33和第一相位补偿模组，所述第一基板31与所述第二基板32相对设置，所述第二基板32设置于所述第一基板31靠近所述第一偏光片2的一侧，所述调光液晶层33设置于所述第一基板31和所述第二基板32之间，所述第一相位补偿模组设置于所述显示液晶盒1和所述第二偏光片4之间；其中，所述调光液晶层33包括聚合物网络331以及分布于所述聚合物网络331中的多个调光液晶分子332，其中，所述聚合物网络331沿第一方向w排布，所述第一方向w相对于所述第一偏光片2的法线倾斜。
需要说明的是，在本申请实施例中，所述第一模式可为防窥显示模式，所述第二模式可为常规显示模式。另外，所述调光液晶层33用于在所述第一模式下，使得沿所述第一偏光片2的法线方向z入射的第一光线61通过第二偏光片4，且使得沿倾斜于第一偏光片2的法线方向z入射的第二光线62藉由第二偏光片4阻挡或部分阻挡；而在所述第二模式下，所述调光液晶分子332的长轴与第一方向相异，以使得更多的光线可以通过所述第二偏光片4，以提高所述显示面板在所述第二模式下的视角范围，以使得所述显示面板在所述第二模式下的视角大于所述显示面板在所述第一模式下的视角。
在所述第一模式下，所述调光液晶分子332的长轴沿第一方向w排布；在第二模式下，所述调光液晶分子332的长轴沿第二方向排布，第二方向与第一方向w相异，且所述第一模式下的所述显示面板的视角小于所述第二模式下的所述显示面板的视角。
可以理解的是，所述调光液晶分子332的倾斜方向在yz平面内，第一光线61和第二光线62在xz平面内传播。对于所述第一光线61，由于其偏振方向只通过所述调光液晶分子332的长轴，因此所述第一光线61经过所述调光液晶分子332后不发生相位差，即偏振方向不受改变；而对于所述第二光线62，由于其偏振方向与所述调光液晶分子332呈一定的角度，因此，所述第二光线62在所述调光液晶分子332的no和ne方向发生相位差，导致偏振方向发生改变，其中，当该相位差Re=λ/2+nλ（n为整数），且所述第二光线62的偏振方向与所述调光液晶分子332呈45度夹角时，所述第二光线62通过所述调光液晶分子332后偏振方向偏转90度，所述第二光线62偏转为所述第三光线63，且偏振方向发生改变，进而无法直接通过所述第二偏光片4，则所述第三光线63会被所述第二偏光片4遮挡，从而能够达到降低侧视角亮度的目的，此时，用户仅能从正视角度观看所述显示面板，而对于其他视角下，所述显示面板的并无显示画面，以起到防窥作用。
可以理解的是，所述第一基板31和所述第二基板32为透明柔性基板，本申请通过将调光液晶盒3的第一基板31和第二基板32均由现有技术中的玻璃基板替换成透明柔性基板，能够显著地降低所述显示面板的厚度和重量，有利于实现轻薄化。
与此同时，由于玻璃为各向同性无机物，不存在双折射特性，偏振光经过玻璃基板时不会产生相位差，相对地，由于透明柔性基板为高分子膜材，通常高分子膜材由于是线性分子，具有双折射特性：nx=ny<nz，其中nz为膜厚方向上的折射率，nx、ny为膜面方向的折射率，偏振光经过透明柔性基板时则会在膜厚方向上发生相位延迟，产生相位差，也就是说，从所述显示液晶盒1出射的偏振光经过所述第一基板31和所述第二基板32时均会发生双折射，导致发生相位延迟，产生相位差。
为了解决上述缺陷，本申请通过增设所述第一C型补偿膜组34，并使所述第一C型补偿膜组34在膜厚方向上的相位延迟量与所述第一基板31和所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，用于补偿偏振光经过透明柔性基板时发生相位延迟而导致的相位差，不影响防窥效果。
优选地，所述第一C型补偿膜组34在膜厚方向上的相位延迟量与所述第一基板31和所述第二基板32在膜厚方向上的相位延迟量之和为零，以完全补偿因相位延迟而导致的相位差。
具体地，所述第一C型补偿膜组34同样具有双折射特性：nx=ny<nz，其中nz为膜厚方向上的折射率，nx、ny为膜面方向的折射率，因此，所述第一C型补偿膜组34与所述第一基板31和所述第二基板32的双折射特性正好互补，因此能够补偿所述第一基板31和所述第二基板32膜厚方向上的相位延迟量Rth，最终使得所述第一基板31和所述第二基板32等效为各向同性基板，避免对防窥效果造成影响。
在一种实施例中，请继续参阅图1，所述第一C型补偿膜组34包括第一C型补偿膜341，所述第一C型补偿膜341设置于所述第一基板31远离所述第二基板32的一侧，或，所述第一C型补偿膜341设置于所述第一基板31靠近所述第二基板32的一侧；其中，所述第一C型补偿膜341在膜厚方向上的相位延迟量与所述第一基板31和所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，以使所述第一C型补偿膜341能够同时补偿所述第一基板31和所述第二基板32膜厚方向上的相位延迟量。在一种实施例中，请参阅图2，图2是本申请实施例提供的第二种显示面板的截面结构示意图，图2与图1的不同之处在于，所述第一C型补偿膜组34包括第二C型补偿膜342，所述第二C型补偿膜342设置于所述第二基板32远离所述第一基板31的一侧，或，所述第二C型补偿膜342设置于所述第二基板32靠近所述第一基板31的一侧；其中，所述第二C型补偿膜342在膜厚方向上的相位延迟量与所述第一基板31和所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，以使所述第二C型补偿膜342能够同时补偿所述第一基板31和所述第二基板32膜厚方向上的相位延迟量。
在一种实施例中，请参阅图3，图3是本申请实施例提供的第三种显示面板的截面结构示意图，图3与图1的不同之处在于，所述第一C型补偿膜组34包括第一C型补偿膜341和第二C型补偿膜342，所述第一C型补偿膜341在膜厚方向上的相位延迟量与所述第一基板31在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜342在膜厚方向上的相位延迟量与所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，以使所述第一C型补偿膜341能够补偿所述第一基板31在膜厚方向上的相位延迟量，所述第二C型补偿膜342能够补偿所述第二基板32在膜厚方向上的相位延迟量。
具体地，根据所述第一C型补偿膜组34膜厚方向上的相位延迟量的计算公式：Rth=[(nx+ny)/2-nz]*d，可以通过调整所述第一C型补偿膜组34的厚度，使得所述第一C型补偿膜组34在膜厚方向上的相位延迟量与所述第一基板31和所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
进一步地，可通过分别调整所述第一C型补偿膜341和所述第二C型补偿膜342的厚度，使得所述第一C型补偿膜341在膜厚方向上的相位延迟量与所述第一基板31在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜342在膜厚方向上的相位延迟量与所述第二基板32在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
具体地，所述第一C型补偿膜组34的厚度范围为1微米~10微米，以保证其不会造成所述显示面板的厚度和重量的显著增大，有利于实现轻薄化。
优选地，所述第一C型补偿膜341在膜厚方向上的相位延迟量与所述第一基板31在膜厚方向上的相位延迟量之和为零，所述第二C型补偿膜342在膜厚方向上的相位延迟量与所述第二基板32在膜厚方向上的相位延迟量之和为零。
可选地，所述第一基板31和所述第二基板32的材料包括透明聚酰亚胺（CPI）、聚对苯二甲酸乙二醇酯（PET）、聚萘二甲酸乙二醇酯（PEN）和环烯烃聚合物（COP）中的任意一种或多种的组合，当然地，所述第一基板31和所述第二基板32也可选用其它材料，本申请对此不做限定。
具体地，所述第一基板31和所述第二基板32的厚度范围为10微米~30微米，相较于现有技术中的所述第一基板31和所述第二基板32采用玻璃基板（其厚度通常大于300微米），所述第一基板31和所述第二基板32的厚度均得到显著减小，与此同时，所述第一基板31和所述第二基板32的重量也得到显著降低，从而有利于所述显示面板实现轻薄化。
进一步地，所述显示面板还包括设置于所述显示液晶盒1远离所述第一偏光片2一侧的第三偏光片5，且所述第三偏光片5的光轴方向与所述第一偏光片2的光轴方向垂直。
进一步地，所述调光液晶盒3还包括第一电极层35和第二电极层36，所述第一电极层35设置于所述第一基板31靠近所述第二基板32的一侧，所述第二电极层36设置于所述第二基板32靠近所述第一基板31的一侧，所述第一电极层35与所述第二电极层36用于加载电压以控制所述液晶分子的长轴在所述第一方向与所述第二方向之间切换。
可选地，请参阅图4，图4是本申请实施例提供的第四种显示面板的截面结构示意图；当所述第一C型补偿膜341设置于所述第一基板31靠近所述第二基板32的一侧时，所述第一C型补偿膜341和所述第一电极层35可依次层叠设置于所述第一基板31靠近所述第二基板32的一侧。
可选地，当所述第二C型补偿膜342设置于所述第二基板32靠近所述第一基板31的一侧时，所述第二C型补偿膜342和所述第二电极层36可依次层叠设置于所述第二基板32靠近所述第一基板31的一侧。
进一步地，所述调光液晶盒3还包括第一配向层37和第二配向层38，所述第一配向层37设置于所述第一电极层35靠近所述第二基板32的一侧，所述第二配向层38设置于所述第二电极层36靠近所述第一基板31的一侧，所述第一配向层37和所述第二配向层38用于为所述调光液晶分子332提供配向方向，其中，所述第一配向层37的预倾斜方向以及所述第二配向层38的预倾斜方向皆与所述第一方向平行。
进一步地，所述第一相位补偿模组还包括A型补偿膜组，所述A型补偿膜组位于所述第一C型补偿膜组34远离所述第一偏光片2的一侧，所述A型补偿模组包括A型补偿膜，所述A型补偿膜具有双折射特性：nz=ny<nx，其中，nz为膜厚方向上的折射率，nx、ny为膜面方向的折射率，偏振光经过所述透明柔性基板时则可能会在膜面方向上产生Re相位延迟，所述A型补偿膜用于对所述透明柔性基板可能存在的Re相位延迟进行相位补偿。
具体地，请参阅图5，图5是本申请实施例提供的一种显示液晶盒的截面结构示意图；所述显示液晶盒1包括第三基板11、第四基板12、显示液晶层13和第二相位补偿模组。
所述第四基板12与所述第三基板11相对设置，所述第四基板12设置于所述第三基板11靠近所述第一偏光片2的一侧，所述显示液晶层13设置于所述第三基板11和所述第四基板12之间，所述显示液晶层13包括多个显示液晶分子131，所述第二相位补偿膜组设置于所述调光液晶盒3和所述第一偏光片2之间。
所述第三基板11和所述第四基板12为透明柔性基板，本申请通过将所述显示液晶盒1的所述第三基板11和所述第四基板12均由现有技术中的玻璃基板替换成透明柔性基板，能够显著地降低显示面板的厚度和重量，有利于实现轻薄化。
与此同时，增设所述第二C型补偿膜组14，并使得所述第二C型补偿膜组14在膜厚方向上的相位延迟量与所述第三基板11和所述第四基板12在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，用于补偿偏振光经过透明柔性基板时发生相位延迟而导致的相位差，不影响防窥效果，其原理可参照上述实施例中的关于所述第一C型补偿膜组34对所述第三基板11和所述第四基板12进行相位补偿的具体说明，在此不再详述。
同理，优选地，所述第二C型补偿膜组14在膜厚方向上的相位延迟量与所述第三基板11和所述第四基板12在膜厚方向上的相位延迟量之和的范围为零。
进一步地，所述显示液晶盒1还包括第三电极层15和第四电极层16，所述第三电极层15设置于所述第三基板11靠近所述第四基板12的一侧，所述第三电极层15设置于所述第四基板12靠近所述第三基板11的一侧，所述第三电极层15与所述第四电极层16用于加载电压以控制所述显示液晶分子131偏转。
进一步地，所述显示液晶盒1还包括第三配向层17和第四配向层18，所述第三配向层17设置于所述第三电极层15靠近所述第四基板12的一侧，所述第四配向层18设置于所述第四电极层16靠近所述第三基板11的一侧，所述第三配向层17和所述第四配向层18用于为所述显示液晶分子131提供配向方向。
本申请实施例还提供一种显示装置，所述显示装置包括上述实施例中的所述显示面板以及背光模组，所述背光模组设置于所述显示面板的一侧，以为所述显示面板提供背光源。
优选地，所述背光模组包括准直式背光源，进而在本申请实施例提供的显示装置中，当所述显示面板处于第一模式时，可以增加沿所述第一偏光片2的法线方向入射的光线的量，进而增加了所述第一模式时正视角度下的显示亮度，以提高所述第一模式下的显示效果，而当所述显示面板处于所述第二模式时，由于所述调光液晶分子332的排列方向与所述聚合物网络331的倾斜方向不同，将会对通过所述调光液晶层33的光线产生散射作用，使得准直式背光源的光线发散，以提高所述第二模式下的大视角可视性，使得所述显示装置在所述第二模式下仍具有良好的广视角显示效果。
需要说明的是，本申请实施例提供的所述背光模组中并不限于准直式背光源，也可为其他常规背光源，例如侧入式等，在此不作限定。
有益效果为：本申请实施例提供的显示面板及显示装置，通过将调光液晶盒的第一基板和第二基板均由现有技术中的玻璃基板替换成透明柔性基板，并在此基础上增设第一相位补偿膜组，第一相位补偿膜组设置于显示液晶盒和第二偏光片之间，第一相位补偿膜组至少包括第一C型补偿膜组，用于补偿偏振光经过透明柔性基板时发生相位延迟而导致的相位差，从而在不影响防窥效果的同时，能够显著地降低显示面板的厚度和重量，有利于实现轻薄化。
综上所述，虽然本申请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申请，本领域的普通技术人员，在不脱离本申请的精神和范围内，均可作各种更动与润饰，因此本申请的保护范围以权利要求界定的范围为准。

Claims (20)

  1. 一种显示面板，包括：
    显示液晶盒；
    第一偏光片，设置于所述显示液晶盒的一侧；
    调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
    第一基板；
    第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
    调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
    第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；
    第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；以及
    第三偏光片，设置于所述显示液晶盒远离所述第一偏光片的一侧；
    其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  2. 根据权利要求1所述的显示面板，其中，所述第一C型补偿膜组包括第一C型补偿膜，所述第一C型补偿膜设置于所述第一基板远离所述第二基板的一侧，或，所述第一C型补偿膜设置于所述第一基板靠近所述第二基板的一侧。
  3. 根据权利要求1所述的显示面板，其中，所述第一C型补偿膜组包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧。
  4. 根据权利要求2所述的显示面板，其中，所述第一C型补偿膜组还包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧；
    其中，所述第一C型补偿膜在膜厚方向上的相位延迟量与所述第一基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜在膜厚方向上的相位延迟量与所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  5. 根据权利要求1所述的显示面板，其中，所述第一C型补偿膜组的厚度范围为1微米~10微米。
  6. 根据权利要求1所述的显示面板，其中，所述第一基板和所述第二基板的材料包括透明聚酰亚胺、聚对苯二甲酸乙二醇酯、聚萘二甲酸乙二醇酯和环烯烃聚合物中的任意一种或多种的组合。
  7. 根据权利要求1所述的显示面板，其中，所述第一基板和所述第二基板的厚度范围为10微米~30微米。
  8. 根据权利要求1所述的显示面板，其中，所述第一相位补偿膜组还包括A型补偿膜组，所述A型补偿膜组位于所述第一C型补偿膜组远离所述第一偏光片的一侧。
  9. 根据权利要求1所述的显示面板，其中，所述显示液晶盒包括：
    第三基板；
    第四基板，与所述第三基板相对设置，所述第四基板设置于所述第三基板靠近所述第一偏光片的一侧；
    显示液晶层，设置于所述第三基板和所述第四基板之间，所述显示液晶层包括多个显示液晶分子；以及
    第二相位补偿膜组，设置于所述调光液晶盒和所述第一偏光片之间，所述第二相位补偿膜组至少包括第二C型补偿膜组；
    其中，所述第三基板和所述第四基板为透明柔性基板，所述第二C型补偿膜组在膜厚方向上的相位延迟量与所述第三基板和所述第四基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  10. 根据权利要求1所述的显示面板，其中，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和为零。
  11. 一种显示面板，包括：
    显示液晶盒；
    第一偏光片，设置于所述显示液晶盒的一侧；
    调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
    第一基板；
    第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
    调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
    第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；以及
    第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；
    其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  12. 根据权利要求11所述的显示面板，其中，所述第一C型补偿膜组包括第一C型补偿膜，所述第一C型补偿膜设置于所述第一基板远离所述第二基板的一侧，或，所述第一C型补偿膜设置于所述第一基板靠近所述第二基板的一侧。
  13. 根据权利要求11所述的显示面板，其中，所述第一C型补偿膜组包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧。
  14. 根据权利要求12所述的显示面板，其中，所述第一C型补偿膜组还包括第二C型补偿膜，所述第二C型补偿膜设置于所述第二基板远离所述第一基板的一侧，或，所述第二C型补偿膜设置于所述第二基板靠近所述第一基板的一侧；
    其中，所述第一C型补偿膜在膜厚方向上的相位延迟量与所述第一基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米，所述第二C型补偿膜在膜厚方向上的相位延迟量与所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  15. 根据权利要求11所述的显示面板，其中，所述第一C型补偿膜组的厚度范围为1微米~10微米。
  16. 根据权利要求11所述的显示面板，其中，所述第一基板和所述第二基板的材料包括透明聚酰亚胺、聚对苯二甲酸乙二醇酯、聚萘二甲酸乙二醇酯和环烯烃聚合物中的任意一种或多种的组合。
  17. 根据权利要求11所述的显示面板，其中，所述第一基板和所述第二基板的厚度范围为10微米~30微米。
  18. 根据权利要求11所述的显示面板，其中，所述第一相位补偿膜组还包括A型补偿膜组，所述A型补偿膜组位于所述第一C型补偿膜组远离所述第一偏光片的一侧。
  19. 根据权利要求11所述的显示面板，其中，所述显示液晶盒包括：
    第三基板；
    第四基板，与所述第三基板相对设置，所述第四基板设置于所述第三基板靠近所述第一偏光片的一侧；
    显示液晶层，设置于所述第三基板和所述第四基板之间，所述显示液晶层包括多个显示液晶分子；以及
    第二相位补偿膜组，设置于所述调光液晶盒和所述第一偏光片之间，所述第二相位补偿膜组至少包括第二C型补偿膜组；
    其中，所述第三基板和所述第四基板为透明柔性基板，所述第二C型补偿膜组在膜厚方向上的相位延迟量与所述第三基板和所述第四基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
  20. 一种显示装置，包括显示面板和背光模组，所述背光模组设置于所述显示面板的一侧；
    其中，所述显示面板包括：
    显示液晶盒；
    第一偏光片，设置于所述显示液晶盒的一侧；
    调光液晶盒，设置于所述显示液晶盒远离所述第一偏光片的一侧，所述调光液晶盒包括：
    第一基板；
    第二基板，与所述第一基板相对设置，所述第二基板设置于所述第一基板靠近所述第一偏光片的一侧；
    调光液晶层，设置于所述第一基板和所述第二基板之间，所述调光液晶层包括聚合物网络以及分布于所述聚合物网络中的多个调光液晶分子；以及
    第一相位补偿膜组，设置于所述显示液晶盒和所述第二偏光片之间，所述第一相位补偿膜组至少包括第一C型补偿膜组；以及
    第二偏光片，设置于所述调光液晶盒远离所述第一偏光片的一侧；
    其中，所述第一基板和所述第二基板为透明柔性基板，所述第一C型补偿膜组在膜厚方向上的相位延迟量与所述第一基板和所述第二基板在膜厚方向上的相位延迟量之和的范围为-30纳米~30纳米。
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