WO2021217760A1 - 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
WO2021217760A1
WO2021217760A1 PCT/CN2020/091483 CN2020091483W WO2021217760A1 WO 2021217760 A1 WO2021217760 A1 WO 2021217760A1 CN 2020091483 W CN2020091483 W CN 2020091483W WO 2021217760 A1 WO2021217760 A1 WO 2021217760A1
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Prior art keywords
degrees
liquid crystal
crystal layer
substrate
electrode
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PCT/CN2020/091483
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English (en)
French (fr)
Inventor
陈兴武
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Tcl华星光电技术有限公司
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Priority to US16/968,614 priority Critical patent/US11086162B1/en
Publication of WO2021217760A1 publication Critical patent/WO2021217760A1/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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133703—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by introducing organic surfactant additives into the liquid crystal material
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering

Definitions

  • This application relates to the field of display technology, in particular to a display panel and a display device.
  • PSVA Poly Stabilized Vertivally Aligned
  • the Chinese translation of polymer stable vertical alignment liquid crystal is a new type of liquid crystal display technology.
  • PSVA technology has the following advantages: 1High contrast, static contrast can reach 16000:1; 2Wide viewing angle, large viewing angle with low color shift less than 0.02, which meets the needs of TV multi-person viewing; 3Fast response, dynamic image response speed is less than 5ms 4Low power consumption: higher penetration rate (greater than 30%), can provide more energy-saving backlight module; 5Applicable to the development of all generations of factories, has been verified in the 8.5 generation line.
  • PSVA display mode needs to add ultraviolet light irradiation process in the panel manufacturing process, that is, UV light irradiation is carried out in the power-on condition, so that the liquid crystal molecules are reversed in a certain direction and then the polymerizable monomers in the liquid crystal are polymerized by ultraviolet light irradiation to form a certain Pretilt angle.
  • ultraviolet light irradiation process that is, UV light irradiation is carried out in the power-on condition, so that the liquid crystal molecules are reversed in a certain direction and then the polymerizable monomers in the liquid crystal are polymerized by ultraviolet light irradiation to form a certain Pretilt angle.
  • the embodiment of the present application provides a display panel and a display device, which can reduce the dark area around the pixel and improve the transmittance of the display panel.
  • the present application provides a display panel, wherein the display panel includes a first substrate and a second substrate disposed oppositely, and a liquid crystal layer is disposed between the first substrate and the second substrate.
  • the liquid crystal layer is doped with a chiral agent, the pitch of the liquid crystal layer is 8 ⁇ m to 60 ⁇ m, and the product of the birefringence coefficient of the liquid crystal layer and the thickness of the liquid crystal layer is 300 nm to 550 nm.
  • the first substrate is an array substrate
  • the second substrate is a color filter substrate
  • a first polarizer is provided on a side of the first substrate away from the liquid crystal layer
  • the first substrate is close to the liquid crystal.
  • a pixel electrode layer is provided on one side of the layer
  • a second polarizer is provided on the side of the second substrate away from the liquid crystal layer
  • the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer
  • the pixel electrode layer includes a plurality of pixel electrodes.
  • the present application provides a display panel.
  • the display panel includes a first substrate and a second substrate arranged opposite to each other.
  • a liquid crystal layer is provided between the first substrate and the second substrate, so The liquid crystal layer is doped with a chiral agent.
  • the pitch of the liquid crystal layer is 8 ⁇ m to 60 ⁇ m.
  • the product of the birefringence coefficient of the liquid crystal layer and the thickness of the liquid crystal layer is 300 nanometers to 550 nanometers.
  • the first substrate is an array substrate
  • the second substrate is a color filter substrate
  • a first polarizer is provided on a side of the first substrate away from the liquid crystal layer
  • the first substrate is close to the liquid crystal.
  • a pixel electrode layer is provided on one side of the layer
  • a second polarizer is provided on the side of the second substrate away from the liquid crystal layer
  • the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer
  • the pixel electrode layer includes a plurality of pixel electrodes.
  • the pixel electrode includes a first main electrode, a second main electrode, a third main electrode, and a fourth main electrode connected at one end.
  • the first main electrode, the second main electrode, the third main electrode, and the fourth main electrode are The first substrate is arranged in a clockwise order, two adjacent main electrodes are perpendicular, a plurality of first sub-electrodes are included between the first main electrode and the second main electrode, and the second main electrode A plurality of second partial electrodes are included between the electrode and the third main electrode, and a plurality of third partial electrodes are included between the third main electrode and the fourth main electrode. A plurality of fourth sub-electrodes are included between the first main electrodes.
  • the chiral agent is a levorotatory chiral agent.
  • the pixel electrode rotates counterclockwise by a first preset angle, and the first The polarization directions of the main electrode and the second polarizer are parallel, and the relationship between the first preset angle and the pitch of the liquid crystal layer satisfies the first condition, the second condition, the third condition, the fourth condition, and the fifth condition Any of them,
  • the first condition is: the pitch of the liquid crystal layer is not greater than 11 microns, and the first predetermined angle is 30 degrees to 50 degrees;
  • the second condition is: the pitch of the liquid crystal layer is 11 micrometers to 13.5 micrometers, and the first predetermined angle is 40 degrees to 60 degrees;
  • the third condition is: the pitch of the liquid crystal layer is 13.5 microns to 16 microns, and the first predetermined angle is 45 degrees to 65 degrees;
  • the fourth condition is: the pitch of the liquid crystal layer is 16 micrometers to 18.5 micrometers, and the first predetermined angle is 50 degrees to 70 degrees;
  • the fifth condition is: the pitch of the liquid crystal layer is not less than 18.5 microns, and the first predetermined angle is 55 degrees to 75 degrees.
  • the angle between the first sub-electrode and the first main electrode is 45 degrees, and/or the angle between the second sub-electrode and the second main electrode is 45 degrees, and/or the The angle between the third sub-electrode and the third main electrode is 45 degrees, and/or the angle between the fourth sub-electrode and the fourth main electrode is 45 degrees.
  • the chiral agent is a levorotatory chiral agent
  • the polarization directions of the first main electrode and the second polarizer are parallel
  • the angle between the fourth sub-electrode and the first main electrode is the first Two preset angles
  • the angle between the first sub-electrode and the first main electrode is a third preset angle
  • the second preset angle is a third preset angle
  • the pitch of the liquid crystal layer The relationship satisfies any one of the sixth condition, the seventh condition, the eighth condition, and the ninth condition,
  • the sixth condition is: the pitch of the liquid crystal layer is not greater than 13.5 microns, the second predetermined angle is 75 degrees to 90 degrees, and the third predetermined angle is 0 degrees to 15 degrees;
  • the seventh condition is: the pitch of the liquid crystal layer is 13.5 micrometers to 16 micrometers, the second predetermined angle is 70 degrees to 90 degrees, and the third predetermined angle is 0 degrees to 20 degrees;
  • the eighth condition is: the pitch of the liquid crystal layer is 16 micrometers to 18.5 micrometers, the second predetermined angle is 65 degrees to 90 degrees, and the third predetermined angle is 5 degrees to 25 degrees;
  • the ninth condition is: the pitch of the liquid crystal layer is not less than 18.5 microns, the second predetermined angle is 60 degrees to 90 degrees, and the third predetermined angle is 10 degrees to 30 degrees.
  • first sub-electrode is parallel to the third sub-electrode
  • second sub-electrode is parallel to the fourth sub-electrode
  • the present application provides a display device, the display device includes a display panel, the display panel includes a first substrate and a second substrate that are opposed to each other, the first substrate and the second substrate A liquid crystal layer is arranged in between, and a chiral agent is doped in the liquid crystal layer.
  • the pitch of the liquid crystal layer is 8 ⁇ m to 60 ⁇ m.
  • the product of the birefringence coefficient of the liquid crystal layer and the thickness of the liquid crystal layer is 300 nanometers to 550 nanometers.
  • the first substrate is an array substrate
  • the second substrate is a color filter substrate
  • a first polarizer is provided on a side of the first substrate away from the liquid crystal layer
  • the first substrate is close to the liquid crystal.
  • a pixel electrode layer is provided on one side of the layer
  • a second polarizer is provided on the side of the second substrate away from the liquid crystal layer
  • the polarization direction of the first polarizer is perpendicular to the polarization direction of the second polarizer
  • the pixel electrode layer includes a plurality of pixel electrodes.
  • the pixel electrode includes a first main electrode, a second main electrode, a third main electrode, and a fourth main electrode connected at one end.
  • the first main electrode, the second main electrode, the third main electrode, and the fourth main electrode are The first substrate is arranged in a clockwise order, two adjacent main electrodes are perpendicular, a plurality of first sub-electrodes are included between the first main electrode and the second main electrode, and the second main electrode A plurality of second partial electrodes are included between the electrode and the third main electrode, and a plurality of third partial electrodes are included between the third main electrode and the fourth main electrode. A plurality of fourth sub-electrodes are included between the first main electrodes.
  • the chiral agent is a levorotatory chiral agent.
  • the pixel electrode rotates counterclockwise by a first preset angle, and the first The polarization directions of the main electrode and the second polarizer are parallel, and the relationship between the first preset angle and the pitch of the liquid crystal layer satisfies the first condition, the second condition, the third condition, the fourth condition, and the fifth condition Any of them,
  • the first condition is: the pitch of the liquid crystal layer is not greater than 11 microns, and the first predetermined angle is 30 degrees to 50 degrees;
  • the second condition is: the pitch of the liquid crystal layer is 11 micrometers to 13.5 micrometers, and the first predetermined angle is 40 degrees to 60 degrees;
  • the third condition is: the pitch of the liquid crystal layer is 13.5 microns to 16 microns, and the first predetermined angle is 45 degrees to 65 degrees;
  • the fourth condition is: the pitch of the liquid crystal layer is 16 micrometers to 18.5 micrometers, and the first predetermined angle is 50 degrees to 70 degrees;
  • the fifth condition is: the pitch of the liquid crystal layer is not less than 18.5 microns, and the first predetermined angle is 55 degrees to 75 degrees.
  • the angle between the first sub-electrode and the first main electrode is 45 degrees, and/or the angle between the second sub-electrode and the second main electrode is 45 degrees, and/or the The angle between the third sub-electrode and the third main electrode is 45 degrees, and/or the angle between the fourth sub-electrode and the fourth main electrode is 45 degrees.
  • the chiral agent is a levorotatory chiral agent
  • the polarization directions of the first main electrode and the second polarizer are parallel
  • the angle between the fourth sub-electrode and the first main electrode is the first Two preset angles
  • the angle between the first sub-electrode and the first main electrode is a third preset angle
  • the second preset angle is a third preset angle
  • the pitch of the liquid crystal layer The relationship satisfies any one of the sixth condition, the seventh condition, the eighth condition, and the ninth condition,
  • the sixth condition is: the pitch of the liquid crystal layer is not greater than 13.5 microns, the second predetermined angle is 75 degrees to 90 degrees, and the third predetermined angle is 0 degrees to 15 degrees;
  • the seventh condition is: the pitch of the liquid crystal layer is 13.5 micrometers to 16 micrometers, the second predetermined angle is 70 degrees to 90 degrees, and the third predetermined angle is 0 degrees to 20 degrees;
  • the eighth condition is: the pitch of the liquid crystal layer is 16 micrometers to 18.5 micrometers, the second predetermined angle is 65 degrees to 90 degrees, and the third predetermined angle is 5 degrees to 25 degrees;
  • the ninth condition is: the pitch of the liquid crystal layer is not less than 18.5 microns, the second predetermined angle is 60 degrees to 90 degrees, and the third predetermined angle is 10 degrees to 30 degrees.
  • first sub-electrode is parallel to the third sub-electrode
  • second sub-electrode is parallel to the fourth sub-electrode
  • the present application provides a display panel.
  • the display panel includes a first substrate and a second substrate that are opposed to each other.
  • a liquid crystal layer is provided between the first substrate and the second substrate, and the liquid crystal layer is doped with hands.
  • Sex agent is doped in the liquid crystal layer of the display panel, and the spiral twisting force generated by the chiral agent drives the rotation of the liquid crystal molecules around the pixel, which can reduce the dark area around the pixel and improve the transmittance of the display panel.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display panel provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the arrangement of pixel electrodes in a specific embodiment of the display panel of FIG. 1 when the second substrate faces the first substrate;
  • FIG. 3 is a schematic diagram of the structure of the pixel electrode in a specific embodiment of the display panel of FIG. 1 when the second substrate faces the first substrate at a viewing angle F3;
  • FIG. 4 is a schematic diagram of the arrangement of pixel electrodes in another specific embodiment of the display panel of FIG. 1 at a viewing angle F3 from the second substrate to the first substrate;
  • FIG. 5 is a schematic diagram of the structure of the pixel electrode in another embodiment of the display panel of FIG. 1 when the second substrate is oriented toward the first substrate.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • features defined with “first” and “second” may explicitly or implicitly include one or more features.
  • “multiple” means two or more than two, unless otherwise specifically defined.
  • An embodiment of the present application provides a display panel.
  • the display panel includes a first substrate and a second substrate that are opposed to each other.
  • a liquid crystal layer is provided between the first substrate and the second substrate, and the liquid crystal layer is doped with a chiral agent.
  • a chiral agent is doped in the liquid crystal layer of the display panel, and the spiral twisting force generated by the chiral agent drives the rotation of the liquid crystal molecules around the pixel, which can reduce the dark area around the pixel and improve the transmittance of the display panel.
  • FIG. 1 is a schematic structural diagram of an embodiment of a display panel provided by an embodiment of the present application
  • FIG. 2 is a view of the pixel electrode in a specific embodiment of the display panel in FIG. Schematic diagram of the arrangement
  • FIG. 3 is a schematic diagram of the structure of the pixel electrode in a specific embodiment of the display panel of FIG. 1 when the second substrate is oriented toward the first substrate.
  • the display panel 10 includes a first substrate 16 and a second substrate 12 opposed to each other.
  • a liquid crystal layer 14 is provided between the first substrate 16 and the second substrate 12. Doped with chiral agents.
  • the liquid crystal in the liquid crystal layer 14 may be a cholesteric liquid crystal. Cholesteric liquid crystals get their name because they are first observed in cholesteric esters and halide liquid crystals.
  • the long-shaped molecules are flat, relying on the interaction of the end groups, and they are arranged in layers with each other equally, but their long axis is on the plane of the layer, and the molecules in the layer are similar to the nematic.
  • the orientation of the long axis of the molecule due to the action of the optically active groups protruding out of the plane of the ply, is sequentially and regularly twisted to a certain angle, and the layers are accumulated to form a spiral surface structure.
  • the distance at which the orientation direction of liquid crystal molecules in the liquid crystal layer 14 undergoes a 360° change is referred to as the pitch P of the liquid crystal layer 14.
  • the pitch P of the liquid crystal layer 14 can be changed. Adding a chiral agent to the liquid crystal layer 14 can use the twisting force generated by the chiral agent to drive the liquid crystal molecules around the pixel to rotate, effectively reducing the width of the peripheral dark stripe area.
  • the pitch P of the liquid crystal layer 14 is 8 ⁇ m to 60 ⁇ m.
  • the pitch P of the liquid crystal layer 14 can be adjusted to 8 ⁇ m to 60 ⁇ m by adjusting the concentration of the chiral agent. It can further reduce the dark area around the pixel electrode and improve the transmittance.
  • the product of the birefringence coefficient of the liquid crystal layer 14 and the thickness of the liquid crystal layer 14 is 300 nanometers to 550 nanometers. Can improve the penetration rate per unit area.
  • the thickness d of the liquid crystal layer 14 is between 2.5 ⁇ m and 4 ⁇ m.
  • the liquid crystal molecules in the liquid crystal layer 14 are negative liquid crystal molecules.
  • Negative liquid crystal molecules refer to a type of liquid crystal molecules whose dielectric constant in the long axis direction of the liquid crystal molecule is smaller than the node constant in the short axis direction of the molecule. Negative liquid crystals are arranged in the electric field perpendicular to the direction of the electric field. The use of negative liquid crystal molecules can further increase the transmittance of the display panel 10.
  • the first substrate 16 is an array substrate
  • the second substrate 12 is a color filter substrate
  • a first polarizer 17 is provided on the side of the first substrate 16 away from the liquid crystal layer 14, and the first substrate 16 is close to the liquid crystal layer 14.
  • a pixel electrode layer 15 is provided on one side of the second substrate 12, and a second polarizer 11 is provided on the side of the second substrate 12 away from the liquid crystal layer 14.
  • the polarization direction F2 of the first polarizer 17 is perpendicular to the polarization direction F1 of the second polarizer 11,
  • the pixel electrode layer 15 includes a plurality of pixel electrodes 18.
  • a common electrode layer 13 is provided on the side of the second substrate 12 close to the liquid crystal layer 14.
  • the display panel 10 may further include a red, green, and blue color filter layer for achieving color display, a black matrix layer for preventing light leakage, a support column for maintaining the thickness of the cell, and the like.
  • the first substrate 16 may be a flexible substrate or a common substrate
  • the second substrate 12 may be a flexible substrate or a common substrate.
  • a plurality of pixel electrodes 18 are arranged in an array on the first substrate 16.
  • the pixel electrode 18 includes a first main electrode 181, a second main electrode 182, a third main electrode 183, and a fourth main electrode 184 connected at one end.
  • the four main electrodes 184 are arranged clockwise on the first substrate 16, and the two adjacent main electrodes are perpendicular.
  • the first main electrode 181 and the second main electrode 182 include a plurality of first sub-electrodes 185, and the second main electrode 182 and the third main electrode 183 include a plurality of second sub-electrodes 186, between the third main electrode 183 and the fourth main electrode 184 include a plurality of third sub-electrodes 187, the fourth main electrode 184 and the first main electrode A plurality of fourth sub-electrodes 188 are included between 181.
  • One end of the first sub-electrode 185 is connected to the first main electrode 181 or the second main electrode 182, one end of the second sub-electrode 186 is connected to the second main electrode 182 or the third main electrode 183, and one end of the third sub-electrode 187 is connected to The third main electrode 183 or the fourth main electrode 184, and one end of the fourth sub-electrode 188 is connected to the first main electrode 181 or the fourth main electrode 184.
  • a plurality of first sub-electrodes 185 are arranged at equal intervals, a plurality of second sub-electrodes 186 are arranged at equal intervals, a plurality of third sub-electrodes 187 are arranged at equal intervals, and a plurality of fourth sub-electrodes 188 are arranged at equal intervals.
  • the chiral agent in the liquid crystal layer 14 is a levorotatory chiral agent.
  • Chiral agents can be divided into left-handed chiral agents and right-handed chiral agents. According to the direction of light-induced rotation of chiral molecules, clockwise rotation is left-handed chiral agent, and counterclockwise rotation is right-handed Sexual chiral agent.
  • the first main electrode 181 and the second polarizer In the viewing angle from the second substrate 12 to the first substrate 16, that is, when the pixel electrode 18 is rotated counterclockwise by a first preset angle ⁇ 1, the first main electrode 181 and the second polarizer
  • the polarization direction F1 of 11 is parallel, and the relationship between the first preset angle ⁇ 1 and the pitch P of the liquid crystal layer 14 satisfies any one of the first condition, the second condition, the third condition, the fourth condition, and the fifth condition.
  • the first condition is: the pitch P of the liquid crystal layer 14 is not greater than 11 microns, and the first preset angle ⁇ 1 is 30 degrees to 50 degrees;
  • the second condition is: the pitch P of the liquid crystal layer 14 is 11 micrometers to 13.5 micrometers, and the first predetermined angle ⁇ 1 is 40 degrees to 60 degrees;
  • the third condition is: the pitch P of the liquid crystal layer 14 is 13.5 microns to 16 microns, and the first predetermined angle ⁇ 1 is 45 degrees to 65 degrees;
  • the fourth condition is: the pitch P of the liquid crystal layer 14 is 16 micrometers to 18.5 micrometers, and the first predetermined angle ⁇ 1 is 50 degrees to 70 degrees;
  • the fifth condition is: the pitch P of the liquid crystal layer 14 is not less than 18.5 microns, and the first predetermined angle ⁇ 1 is 55 degrees to 75 degrees.
  • the angle between the first sub-electrode 185 and the first main electrode 181 is 45 degrees
  • the angle between the second sub-electrode 186 and the second main electrode 182 is 45 degrees
  • the third sub-electrode 187 The included angle with the third main electrode 183 is 45 degrees
  • the included angle between the fourth sub-electrode 188 and the fourth main electrode 184 is 45 degrees.
  • FIG. 4 is a schematic diagram of the arrangement of the pixel electrodes in another embodiment of the display panel of FIG. 1 at a viewing angle from the second substrate to the first substrate;
  • FIG. 5 is another specific implementation of the display panel of FIG. 1 In the example, the structure diagram of the pixel electrode in the viewing angle from the second substrate to the first substrate.
  • a plurality of pixel electrodes 28 are arranged in an array on the first substrate 16.
  • the pixel electrode 28 includes a first main electrode 281, a second main electrode 282, a third main electrode 283, and a fourth main electrode 284 connected at one end.
  • the four main electrodes 284 are arranged clockwise on the first substrate 16, and the two adjacent main electrodes are perpendicular to each other.
  • the first main electrode 281 and the second main electrode 282 include a plurality of first sub-electrodes 285, and the second main electrode 282 and the third main electrode 283 include a plurality of second sub-electrodes 286, the third main electrode 283 and the fourth main electrode 284 include a plurality of third sub-electrodes 287, the fourth main electrode 284 and the first main electrode A plurality of fourth sub-electrodes 288 are included between 281.
  • One end of the first sub-electrode 285 is connected to the first main electrode 281 or the second main electrode 282
  • one end of the second sub-electrode 286 is connected to the second main electrode 282 or the third main electrode 283
  • one end of the third sub-electrode 287 is connected to The third main electrode 283 or the fourth main electrode 284
  • one end of the fourth sub-electrode 288 is connected to the first main electrode 281 or the fourth main electrode 284.
  • the plurality of first sub-electrodes 285 are arranged at equal intervals
  • the plurality of second sub-electrodes 286 are arranged at equal intervals
  • the plurality of third sub-electrodes 287 are arranged at equal intervals
  • the plurality of fourth sub-electrodes 288 are arranged at equal intervals.
  • the polarization directions F1 of the first main electrode 281 and the second polarizer 11 are parallel, the angle between the fourth sub-electrode 288 and the first main electrode 281 is a second preset angle ⁇ 2, and the distance between the first sub-electrode 285 and the first main electrode 281
  • the angle is the third preset angle ⁇ 3, the relationship between the second preset angle ⁇ 2, the third preset angle and the pitch P of the liquid crystal layer 14 satisfies any one of the sixth condition, the seventh condition, the eighth condition, and the ninth condition kind,
  • the sixth condition is: the pitch P of the liquid crystal layer 14 is not greater than 13.5 microns, the second preset angle ⁇ 2 is 75 degrees to 90 degrees, and the third preset angle ⁇ 3 is 0 degrees to 15 degrees;
  • the seventh condition is: the pitch P of the liquid crystal layer 14 is 13.5 ⁇ m to 16 ⁇ m, the second predetermined angle ⁇ 2 is 70 degrees to 90 degrees, and the third predetermined angle ⁇ 3 is 0 degrees to 20 degrees;
  • the eighth condition is: the pitch P of the liquid crystal layer 14 is 16 micrometers to 18.5 micrometers, the second predetermined angle ⁇ 2 is 65 degrees to 90 degrees, and the third predetermined angle ⁇ 3 is 5 degrees to 25 degrees;
  • the ninth condition is: the pitch P of the liquid crystal layer 14 is not less than 18.5 microns, the second preset angle ⁇ 2 is 60 degrees to 90 degrees, and the third preset angle ⁇ 3 is 10 degrees to 30 degrees.
  • first sub-electrode 285 is parallel to the third sub-electrode 287
  • second sub-electrode 286 is parallel to the fourth sub-electrode 288.
  • the present application provides a display panel.
  • the display panel includes a first substrate and a second substrate that are opposed to each other.
  • a liquid crystal layer is provided between the first substrate and the second substrate, and the liquid crystal layer is doped with hands.
  • Sex agent is doped in the liquid crystal layer of the display panel, and the spiral twisting force generated by the chiral agent drives the rotation of the liquid crystal molecules around the pixel, which can reduce the dark area around the pixel and improve the transmittance of the display panel.
  • the present application also provides a display device, which includes the above display panel 10.
  • the display panel in the embodiment of the present application may also include any other necessary structures, such as a substrate, as required.
  • the buffer layer, interlayer dielectric layer (ILD), etc. are not specifically limited here.
  • each of the above units or structures can be implemented as independent entities, or can be combined arbitrarily, and implemented as the same or several entities.
  • specific implementation of each of the above units or structures please refer to the previous method embodiments. No longer.

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Abstract

本申请实施例公开了一种显示面板及显示装置，该显示面板包括相对设置的第一基板、第二基板，第一基板和第二基板之间设置有液晶层，液晶层中掺杂有手性剂。本申请在显示面板中的液晶层中掺杂手性剂，利用手性剂产生的螺旋扭曲力带动像素周边的液晶分子转动，能够缩小像素周边暗纹区域，提升显示面板的穿透率。

Description

显示面板及显示装置
本申请要求于2020年4月26日提交中国专利局、申请号为202010338398.5、发明名称为“显示面板及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，具体涉及一种显示面板及显示装置。
 背景技术
PSVA(Polmer Stabilized Vertivally Aligned)，中文译名聚合物稳定的垂直排列液晶，是一种新型的液晶显示技术。PSVA技术具有以下优势：①高对比度，静态对比度可达到16000：1；②宽视角，大视角具备低色偏低于0.02，符合电视多人观看需求；③响应快，动态影像反应速度低于5ms；④低功耗：较高的穿透率（大于30%），可以提供更节能的背光模块；⑤适用于各世代厂房发展，已验证于8.5代线。
PSVA显示模式需要在面板制程增加紫外光照射制程，即在加电状况进行紫外光照射，使液晶分子沿着某一方向倒向后利用紫外光照射使液晶内可聚合单体聚合，形成一定的预倾角。然而，这种方式在现在像素设计框架下像素周边必然会有一定区域为非理想状况，即为暗纹区域。
也即，现有技术中，显示面板的像素周边存在较大面积的暗纹区域，降低了显示面板的穿透率。
 技术问题
本申请实施例提供一种显示面板及显示装置，能够缩小像素周边暗纹区域，提升显示面板的穿透率。
 技术解决方案
为解决上述问题，第一方面，本申请提供一种显示面板，其中，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂，所述液晶层的螺距为8微米至60微米，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
为解决上述问题，第二方面，本申请提供一种显示面板，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂。
其中，所述液晶层的螺距为8微米至60微米。
其中，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
其中，所述像素电极包括一端连接的第一主电极、第二主电极、第三主电极以及第四主电极，第一主电极、第二主电极、第三主电极以及第四主电极在所述第一基板上顺时针依次排布，相邻两个所述主电极垂直，所述第一主电极和所述第二主电极之间包括多个第一分电极，所述第二主电极和所述第三主电极之间包括多个第二分电极，所述第三主电极和所述第四主电极之间包括多个第三分电极，所述第四主电极和所述第一主电极之间包括多个第四分电极。
其中，所述手性剂为左旋性的手性剂，在所述第二基板朝向至所述第一基板的视角下，所述像素电极逆时针旋转第一预设角度后，所述第一主电极和所述第二偏光片的偏振方向平行，所述第一预设角度和所述液晶层的螺距的关系满足第一条件、第二条件、第三条件、第四条件以及第五条件中的任意一种，
其中，所述第一条件为：所述液晶层的螺距不大于11微米，所述第一预设角度为30度至50度；
所述第二条件为：所述液晶层的螺距为11微米至13.5微米，所述第一预设角度为40度至60度；
所述第三条件为：所述液晶层的螺距为13.5微米至16微米，所述第一预设角度为45度至65度；
所述第四条件为：所述液晶层的螺距为16微米至18.5微米，所述第一预设角度为50度至70度；
所述第五条件为：所述液晶层的螺距不小于18.5微米，所述第一预设角度为55度至75度。
其中，所述第一分电极与所述第一主电极的夹角为45度，和/或所述第二分电极与所述第二主电极的夹角为45度，和/或所述第三分电极与所述第三主电极的夹角为45度，和/或所述第四分电极与所述第四主电极的夹角为45度。
其中，所述手性剂为左旋性的手性剂，所述第一主电极和所述第二偏光片的偏振方向平行，所述第四分电极与所述第一主电极的角度为第二预设角度，所述第一分电极与所述第一主电极的角度为第三预设角度，所述第二预设角度，所述第三预设角度和所述液晶层的螺距的关系满足第六条件、第七条件、第八条件以及第九条件中的任意一种，
其中，所述第六条件为：所述液晶层的螺距不大于13.5微米，所述第二预设角度为75度至90度，所述第三预设角度为0度至15度；
所述第七条件为：所述液晶层的螺距为13.5微米至16微米，所述第二预设角度为70度至90度，所述第三预设角度为0度至20度；
所述第八条件为：所述液晶层的螺距为16微米至18.5微米，所述第二预设角度为65度至90度，所述第三预设角度为5度至25度；
所述第九条件为：所述液晶层的螺距不小于18.5微米，所述第二预设角度为60度至90度，所述第三预设角度为10度至30度。
其中，所述第一分电极与所述第三分电极平行，所述第二分电极与所述第四分电极平行。
为解决上述问题，第三方面，本申请提供一种显示装置，所述显示装置包括显示面板，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂。
其中，所述液晶层的螺距为8微米至60微米。
其中，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
其中，所述像素电极包括一端连接的第一主电极、第二主电极、第三主电极以及第四主电极，第一主电极、第二主电极、第三主电极以及第四主电极在所述第一基板上顺时针依次排布，相邻两个所述主电极垂直，所述第一主电极和所述第二主电极之间包括多个第一分电极，所述第二主电极和所述第三主电极之间包括多个第二分电极，所述第三主电极和所述第四主电极之间包括多个第三分电极，所述第四主电极和所述第一主电极之间包括多个第四分电极。
其中，所述手性剂为左旋性的手性剂，在所述第二基板朝向至所述第一基板的视角下，所述像素电极逆时针旋转第一预设角度后，所述第一主电极和所述第二偏光片的偏振方向平行，所述第一预设角度和所述液晶层的螺距的关系满足第一条件、第二条件、第三条件、第四条件以及第五条件中的任意一种，
其中，所述第一条件为：所述液晶层的螺距不大于11微米，所述第一预设角度为30度至50度；
所述第二条件为：所述液晶层的螺距为11微米至13.5微米，所述第一预设角度为40度至60度；
所述第三条件为：所述液晶层的螺距为13.5微米至16微米，所述第一预设角度为45度至65度；
所述第四条件为：所述液晶层的螺距为16微米至18.5微米，所述第一预设角度为50度至70度；
所述第五条件为：所述液晶层的螺距不小于18.5微米，所述第一预设角度为55度至75度。
其中，所述第一分电极与所述第一主电极的夹角为45度，和/或所述第二分电极与所述第二主电极的夹角为45度，和/或所述第三分电极与所述第三主电极的夹角为45度，和/或所述第四分电极与所述第四主电极的夹角为45度。
其中，所述手性剂为左旋性的手性剂，所述第一主电极和所述第二偏光片的偏振方向平行，所述第四分电极与所述第一主电极的角度为第二预设角度，所述第一分电极与所述第一主电极的角度为第三预设角度，所述第二预设角度，所述第三预设角度和所述液晶层的螺距的关系满足第六条件、第七条件、第八条件以及第九条件中的任意一种，
其中，所述第六条件为：所述液晶层的螺距不大于13.5微米，所述第二预设角度为75度至90度，所述第三预设角度为0度至15度；
所述第七条件为：所述液晶层的螺距为13.5微米至16微米，所述第二预设角度为70度至90度，所述第三预设角度为0度至20度；
所述第八条件为：所述液晶层的螺距为16微米至18.5微米，所述第二预设角度为65度至90度，所述第三预设角度为5度至25度；
所述第九条件为：所述液晶层的螺距不小于18.5微米，所述第二预设角度为60度至90度，所述第三预设角度为10度至30度。
其中，所述第一分电极与所述第三分电极平行，所述第二分电极与所述第四分电极平行。
 有益效果
区别于现有技术，本申请提供一种显示面板，该显示面板包括相对设置的第一基板、第二基板，第一基板和第二基板之间设置有液晶层，液晶层中掺杂有手性剂。本申请在显示面板中的液晶层中掺杂手性剂，利用手性剂产生的螺旋扭曲力带动像素周边的液晶分子转动，能够缩小像素周边暗纹区域，提升显示面板的穿透率。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，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一种显示面板的一个实施例结构示意图；
图2是图1显示面板一具体实施例中像素电极在第二基板朝向至第一基板的视角下的排布示意图；
图3是图1显示面板一具体实施例中像素电极在第二基板朝向至第一基板的视角F3下的结构示意图；
图4是图1显示面板另一具体实施例中像素电极在第二基板朝向至第一基板的视角F3下的排布示意图；
图5是图1显示面板另一具体实施例中像素电极在第二基板朝向至第一基板的视角下的结构示意图。
 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。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请中，“示例性”一词用来表示“用作例子、例证或说明”。本申请中被描述为“示例性”的任何实施例不一定被解释为比其它实施例更优选或更具优势。为了使本领域任何技术人员能够实现和使用本申请，给出了以下描述。在以下描述中，为了解释的目的而列出了细节。应当明白的是，本领域普通技术人员可以认识到，在不使用这些特定细节的情况下也可以实现本申请。在其它实例中，不会对公知的结构和过程进行详细阐述，以避免不必要的细节使本申请的描述变得晦涩。因此，本申请并非旨在限于所示的实施例，而是与符合本申请所公开的原理和特征的最广范围相一致。
本申请实施例提供一种显示面板，该显示面板包括相对设置的第一基板、第二基板，第一基板和第二基板之间设置有液晶层，液晶层中掺杂有手性剂。本申请在显示面板中的液晶层中掺杂手性剂，利用手性剂产生的螺旋扭曲力带动像素周边的液晶分子转动，能够缩小像素周边暗纹区域，提升显示面板的穿透率。以下分别进行详细说明。
参阅图1，图1是本申请实施例提供一种显示面板的一个实施例结构示意图；图2是图1显示面板一具体实施例中像素电极在第二基板朝向至第一基板的视角下的排布示意图；图3是图1显示面板一具体实施例中像素电极在第二基板朝向至第一基板的视角下的结构示意图。
结合图1-图3，本实施例中，显示面板10包括相对设置的第一基板16、第二基板12，第一基板16和第二基板12之间设置有液晶层14，液晶层14中掺杂有手性剂。液晶层14中液晶可以是胆甾相液晶。胆甾相液晶由于首先在胆甾醇的酯和卤化物的液晶中观察到，故得其名。在这类液晶中，长形分子是扁平的，依靠端基的相互作用，彼此平等排列成层状，但是他们的长轴是在层片平面上的，层内分子与向列型相似，而相邻两层间，分子长轴的取向，由于伸出层片平面外的光学活性基团的作用，依次规则地扭转一定角度，层层累加而形成螺旋面结构。液晶层14中液晶分子取向方向经历360°变化的距离称作液晶层14的螺距P。在液晶层14加入手性剂后，可以改变液晶层14的螺距P。在液晶层14中添加手性剂，可以利用手性剂产生的螺旋扭曲力带动像素周边的液晶分子转动，有效的缩小周边暗纹区域的宽度。
在一个优选的实施例中，液晶层14的螺距P为8微米至60微米。具体的，可通过调节手性剂的浓度调节液晶层14的螺距P至8微米至60微米。能够进一步缩小像素电极周边暗纹区域，提升穿透率。
进一步的，液晶层14的双折射系数和液晶层14的厚度之积为300纳米至550纳米。能够提高单位面积的穿透率。其中，液晶层14的厚度d在2.5微米到4微米之间。
进一步的，液晶层14中的液晶分子为负性液晶分子。负性液晶分子是指液晶分子长轴方向的介电常数小于分子短轴方向的节点常数的一类液晶分子。负性液晶在电场中垂直电场方向排列。采用负性液晶分子能够进一步提高显示面板10的穿透率。
本申请实施例中，第一基板16为阵列基板，第二基板12为彩膜基板，第一基板16远离液晶层14的一侧设有第一偏光片17，第一基板16靠近液晶层14的一侧设有像素电极层15，第二基板12远离液晶层14的一侧设有第二偏光片11，第一偏光片17的偏振方向F2与第二偏光片11的偏振方向F1垂直，像素电极层15包括多个像素电极18。第二基板12靠近液晶层14的一侧设有公共电极层13。
需要说明的是，显示面板10还可以包括用于实现彩色显示的红绿蓝彩色滤光层、用于防止漏光的黑色矩阵层、用于维持盒厚的支撑柱等。第一基板16可以为柔性基板或者普通基板，第二基板12可以为柔性基板或者普通基板。
在一个具体的实施例中，多个像素电极18在第一基板16上阵列排布。像素电极18包括一端连接的第一主电极181、第二主电极182、第三主电极183以及第四主电极184，第一主电极181、第二主电极182、第三主电极183以及第四主电极184在第一基板16上顺时针依次排布，相邻两个主电极垂直，第一主电极181和第二主电极182之间包括多个第一分电极185，第二主电极182和第三主电极183之间包括多个第二分电极186，第三主电极183和第四主电极184之间包括多个第三分电极187，第四主电极184和第一主电极181之间包括多个第四分电极188。其中，第一分电极185一端连接于第一主电极181或者第二主电极182，第二分电极186一端连接于第二主电极182或者第三主电极183，第三分电极187一端连接于第三主电极183或者第四主电极184，第四分电极188一端连接于第一主电极181或者第四主电极184。多个第一分电极185等间隔设置，多个第二分电极186等间隔设置，多个第三分电极187等间隔设置，多个第四分电极188等间隔设置。
具体的，液晶层14中的手性剂为左旋性的手性剂。手性剂可以分为左旋性的手性剂和右旋性的手性剂，根据手性分子对光的诱导旋转方向不同，顺时针旋转为左旋性的手性剂，逆时针旋转为右旋性的手性剂。
在第二基板12朝向至第一基板16的视角下，也即沿图1中F3方向看过去，像素电极18逆时针旋转第一预设角度φ1后，第一主电极181和第二偏光片11的偏振方向F1平行，第一预设角度φ1和液晶层14的螺距P的关系满足第一条件、第二条件、第三条件、第四条件以及第五条件中的任意一种。
其中，第一条件为：液晶层14的螺距P不大于11微米，第一预设角度φ1为30度至50度；
第二条件为：液晶层14的螺距P为11微米至13.5微米，第一预设角度φ1为40度至60度；
第三条件为：液晶层14的螺距P为13.5微米至16微米，第一预设角度φ1为45度至65度；
第四条件为：液晶层14的螺距P为16微米至18.5微米，第一预设角度φ1为50度至70度；
第五条件为：液晶层14的螺距P不小于18.5微米，第一预设角度φ1为55度至75度。
进一步的，第一分电极185与第一主电极181的夹角为45度，和/或第二分电极186与第二主电极182的夹角为45度，和/或第三分电极187与第三主电极183的夹角为45度，和/或第四分电极188与第四主电极184的夹角为45度。
参阅图4和图5，图4是图1显示面板另一具体实施例中像素电极在第二基板朝向至第一基板的视角下的排布示意图；图5是图1显示面板另一具体实施例中像素电极在第二基板朝向至第一基板的视角下的结构示意图。
在另一个具体的实施例中，多个像素电极28在第一基板16上阵列排布。像素电极28包括一端连接的第一主电极281、第二主电极282、第三主电极283以及第四主电极284，第一主电极281、第二主电极282、第三主电极283以及第四主电极284在第一基板16上顺时针依次排布，相邻两个主电极垂直，第一主电极281和第二主电极282之间包括多个第一分电极285，第二主电极282和第三主电极283之间包括多个第二分电极286，第三主电极283和第四主电极284之间包括多个第三分电极287，第四主电极284和第一主电极281之间包括多个第四分电极288。其中，第一分电极285一端连接于第一主电极281或者第二主电极282，第二分电极286一端连接于第二主电极282或者第三主电极283，第三分电极287一端连接于第三主电极283或者第四主电极284，第四分电极288一端连接于第一主电极281或者第四主电极284。多个第一分电极285等间隔设置，多个第二分电极286等间隔设置，多个第三分电极287等间隔设置，多个第四分电极288等间隔设置。
第一主电极281和第二偏光片11的偏振方向F1平行，第四分电极288与第一主电极281的角度为第二预设角度φ2，第一分电极285与第一主电极281的角度为第三预设角度φ3，第二预设角度φ2、第三预设角度和液晶层14的螺距P的关系满足第六条件、第七条件、第八条件以及第九条件中的任意一种，
其中，第六条件为：液晶层14的螺距P不大于13.5微米，第二预设角度φ2为75度至90度，第三预设角度φ3为0度至15度；
第七条件为：液晶层14的螺距P为13.5微米至16微米，第二预设角度φ2为70度至90度，第三预设角度φ3为0度至20度；
第八条件为：液晶层14的螺距P为16微米至18.5微米，第二预设角度φ2为65度至90度，第三预设角度φ3为5度至25度；
第九条件为：液晶层14的螺距P不小于18.5微米，第二预设角度φ2为60度至90度，第三预设角度φ3为10度至30度。
进一步的，第一分电极285与第三分电极287平行，第二分电极286与第四分电极288平行。
区别于现有技术，本申请提供一种显示面板，该显示面板包括相对设置的第一基板、第二基板，第一基板和第二基板之间设置有液晶层，液晶层中掺杂有手性剂。本申请在显示面板中的液晶层中掺杂手性剂，利用手性剂产生的螺旋扭曲力带动像素周边的液晶分子转动，能够缩小像素周边暗纹区域，提升显示面板的穿透率。
本申请还提供一种显示装置，显示装置包括以上的显示面板10。
需要说明的是，上述显示面板实施例中仅描述了上述结构，可以理解的是，除了上述结构之外，本申请实施例显示面板中，还可以根据需要包括任何其他的必要结构，例如基板，缓冲层，层间介质层（ILD）等，具体此处不作限定。
具体实施时，以上各个单元或结构可以作为独立的实体来实现，也可以进行任意组合，作为同一或若干个实体来实现，以上各个单元或结构的具体实施可参见前面的方法实施例，在此不再赘述。
以上对本申请实施例所提供的一种显示面板及显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施例进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施例及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (20)

  1. 一种显示面板，其中，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂，所述液晶层的螺距为8微米至60微米，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
  2. 根据权利要求1所述的显示面板，其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
  3. 一种显示面板，其中，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂。
  4. 根据权利要求3所述的显示面板，其中，所述液晶层的螺距为8微米至60微米。
  5. 根据权利要求3所述的显示面板，其中，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
  6. 根据权利要求4所述的显示面板，其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
  7. 根据权利要求6所述的显示面板，其中，所述像素电极包括一端连接的第一主电极、第二主电极、第三主电极以及第四主电极，所述第一主电极、所述第二主电极、所述第三主电极以及所述第四主电极在所述第一基板上顺时针依次排布，相邻两个所述主电极垂直，所述第一主电极和所述第二主电极之间包括多个第一分电极，所述第二主电极和所述第三主电极之间包括多个第二分电极，所述第三主电极和所述第四主电极之间包括多个第三分电极，所述第四主电极和所述第一主电极之间包括多个第四分电极。
  8. 根据权利要求7所述的显示面板，其中，所述手性剂为左旋性的手性剂，在所述第二基板朝向至所述第一基板的视角下，所述像素电极逆时针旋转第一预设角度后，所述第一主电极和所述第二偏光片的偏振方向平行，所述第一预设角度和所述液晶层的螺距的关系满足第一条件、第二条件、第三条件、第四条件以及第五条件中的任意一种，
    其中，所述第一条件为：所述液晶层的螺距不大于11微米，所述第一预设角度为30度至50度；
    所述第二条件为：所述液晶层的螺距为11微米至13.5微米，所述第一预设角度为40度至60度；
    所述第三条件为：所述液晶层的螺距为13.5微米至16微米，所述第一预设角度为45度至65度；
    所述第四条件为：所述液晶层的螺距为16微米至18.5微米，所述第一预设角度为50度至70度；
    所述第五条件为：所述液晶层的螺距不小于18.5微米，所述第一预设角度为55度至75度。
  9. 根据权利要求8所述的显示面板，其中，所述第一分电极与所述第一主电极的夹角为45度，和/或所述第二分电极与所述第二主电极182的夹角为45度，和/或所述第三分电极与所述第三主电极的夹角为45度，和/或所述第四分电极与所述第四主电极的夹角为45度。
  10. 根据权利要求7所述的显示面板，其中，所述手性剂为左旋性的手性剂，所述第一主电极和所述第二偏光片的偏振方向平行，所述第四分电极与所述第一主电极的角度为第二预设角度，所述第一分电极与所述第一主电极的角度为第三预设角度，所述第二预设角度、所述第三预设角度和所述液晶层的螺距的关系满足第六条件、第七条件、第八条件以及第九条件中的任意一种，
    其中，所述第六条件为：所述液晶层的螺距不大于13.5微米，所述第二预设角度为75度至90度，所述第三预设角度为0度至15度；
    所述第七条件为：所述液晶层的螺距为13.5微米至16微米，所述第二预设角度为70度至90度，所述第三预设角度为0度至20度；
    所述第八条件为：所述液晶层的螺距为16微米至18.5微米，所述第二预设角度为65度至90度，所述第三预设角度为5度至25度；
    所述第九条件为：所述液晶层的螺距不小于18.5微米，所述第二预设角度为60度至90度，所述第三预设角度为10度至30度。
  11. 根据权利要求10所述的显示面板，其中，所述第一分电极与所述第三分电极平行，所述第二分电极与所述第四分电极平行。
  12. 一种显示装置，其中，所述显示装置包括显示面板，所述显示面板包括相对设置的第一基板、第二基板，所述第一基板和第二基板之间设置有液晶层，所述液晶层中掺杂有手性剂。
  13. 根据权利要求12所述的显示装置，其中，所述液晶层的螺距为8微米至60微米。
  14. 根据权利要求12所述的显示装置，其中，所述液晶层的双折射系数和所述液晶层的厚度之积为300纳米至550纳米。
  15. 根据权利要求13所述的显示装置，其中，所述第一基板为阵列基板，所述第二基板为彩膜基板，所述第一基板远离所述液晶层的一侧设有第一偏光片，所述第一基板靠近所述液晶层的一侧设有像素电极层，所述第二基板远离所述液晶层的一侧设有第二偏光片，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垂直，所述像素电极层包括多个像素电极。
  16. 根据权利要求15所述的显示装置，其中，所述像素电极包括一端连接的第一主电极、第二主电极、第三主电极以及第四主电极，所述第一主电极、所述第二主电极、所述第三主电极以及所述第四主电极在所述第一基板上顺时针依次排布，相邻两个所述主电极垂直，所述第一主电极和所述第二主电极之间包括多个第一分电极，所述第二主电极和所述第三主电极之间包括多个第二分电极，所述第三主电极和所述第四主电极之间包括多个第三分电极，所述第四主电极和所述第一主电极之间包括多个第四分电极。
  17. 根据权利要求16所述的显示装置，其中，所述手性剂为左旋性的手性剂，在所述第二基板朝向至所述第一基板的视角下，所述像素电极逆时针旋转第一预设角度后，所述第一主电极和所述第二偏光片的偏振方向平行，所述第一预设角度和所述液晶层的螺距的关系满足第一条件、第二条件、第三条件、第四条件以及第五条件中的任意一种，
    其中，所述第一条件为：所述液晶层的螺距不大于11微米，所述第一预设角度为30度至50度；
    所述第二条件为：所述液晶层的螺距为11微米至13.5微米，所述第一预设角度为40度至60度；
    所述第三条件为：所述液晶层的螺距为13.5微米至16微米，所述第一预设角度为45度至65度；
    所述第四条件为：所述液晶层的螺距为16微米至18.5微米，所述第一预设角度为50度至70度；
    所述第五条件为：所述液晶层的螺距不小于18.5微米，所述第一预设角度为55度至75度。
  18. 根据权利要求17所述的显示装置，其中，所述第一分电极与所述第一主电极的夹角为45度，和/或所述第二分电极与所述第二主电极182的夹角为45度，和/或所述第三分电极与所述第三主电极的夹角为45度，和/或所述第四分电极与所述第四主电极的夹角为45度。
  19. 根据权利要求16所述的显示装置，其中，所述手性剂为左旋性的手性剂，所述第一主电极和所述第二偏光片的偏振方向平行，所述第四分电极与所述第一主电极的角度为第二预设角度，所述第一分电极与所述第一主电极的角度为第三预设角度，所述第二预设角度、所述第三预设角度和所述液晶层的螺距的关系满足第六条件、第七条件、第八条件以及第九条件中的任意一种，
    其中，所述第六条件为：所述液晶层的螺距不大于13.5微米，所述第二预设角度为75度至90度，所述第三预设角度为0度至15度；
    所述第七条件为：所述液晶层的螺距为13.5微米至16微米，所述第二预设角度为70度至90度，所述第三预设角度为0度至20度；
    所述第八条件为：所述液晶层的螺距为16微米至18.5微米，所述第二预设角度为65度至90度，所述第三预设角度为5度至25度；
    所述第九条件为：所述液晶层的螺距不小于18.5微米，所述第二预设角度为60度至90度，所述第三预设角度为10度至30度。
  20. 根据权利要求19所述的显示装置，其中，所述第一分电极与所述第三分电极平行，所述第二分电极与所述第四分电极平行。
PCT/CN2020/091483 2020-04-26 2020-05-21 显示面板及显示装置 WO2021217760A1 (zh)

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