WO2023102982A1 - 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
WO2023102982A1
WO2023102982A1 PCT/CN2021/138476 CN2021138476W WO2023102982A1 WO 2023102982 A1 WO2023102982 A1 WO 2023102982A1 CN 2021138476 W CN2021138476 W CN 2021138476W WO 2023102982 A1 WO2023102982 A1 WO 2023102982A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
polarizer
viewing angle
mode
display panel
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PCT/CN2021/138476
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English (en)
French (fr)
Inventor
叶文龙
程薇
何瑞
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武汉华星光电技术有限公司
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Publication of WO2023102982A1 publication Critical patent/WO2023102982A1/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
    • 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
    • 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
    • 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

Definitions

  • the present application relates to the field of display technology, in particular to a display panel and a display device.
  • a liquid crystal dimming box is usually installed under the display panel to achieve this, but additional After the dimming box is installed, the brightness of the side viewing angle is relatively low in the wide viewing angle (non-peep prevention mode), that is, the display effect of the display device in the wide viewing angle is not good.
  • Embodiments of the present application provide a display panel and a display device, which can improve the display effect of the display panel under wide viewing angles.
  • An embodiment of the present application provides a display panel, wherein the display panel includes a first mode and a second mode, and the viewing angle of the display panel in the first mode is smaller than that of the display panel in the second mode viewing angle; the display panel includes:
  • a viewing angle adjusting liquid crystal cell is used to adjust the display viewing angle of the display panel, the viewing angle adjusting liquid crystal cell includes a first liquid crystal layer, the first liquid crystal layer includes a polymer network and is distributed on the polymer The first liquid crystal molecule in the IoT network;
  • a light-adjustable liquid crystal cell the light-adjustable liquid crystal cell is overlapped with the viewing angle adjustment liquid crystal cell; the light-adjustable liquid crystal cell includes a second liquid crystal layer, and the second liquid crystal layer includes a polymer and is distributed in the polymer the second liquid crystal molecule; in the second mode, the dimming liquid crystal cell is used to scatter incident light; and
  • a panel main body, the panel main body is arranged on the light emitting side of the viewing angle adjustment liquid crystal cell and the dimming liquid crystal cell.
  • the display panel further includes a first polarizer and a second polarizer, the optical axis direction of the first polarizer is different from the optical axis direction of the second polarizer Arranged in parallel; the first polarizer is arranged on the liquid crystal cell for adjusting the viewing angle, and the second polarizer is arranged on the side of the liquid crystal cell for adjusting the viewing angle away from the first polarizer;
  • the second liquid crystal molecules have a first refractive index and a second refractive index, the first refractive index is the refractive index of the second liquid crystal molecules in the long axis direction, and the second refractive index is the second refractive index of the second liquid crystal molecules
  • the long axis direction of the second liquid crystal molecules is arranged to cross the normal direction of the first polarizer.
  • the long axis direction of the second liquid crystal molecules is set parallel to the normal direction of the first polarizer.
  • the long axis direction of the second liquid crystal molecules is set perpendicular to the normal direction of the first polarizer.
  • the difference between the first refractive index and the second refractive index is greater than or equal to 0.07 and less than or equal to 0.5.
  • the polymer in the dimming liquid crystal cell, is a polymer network, the second liquid crystal molecules are negative liquid crystals, and the polymer is aligned along the first direction Arranged, the first direction is parallel to the normal direction of the first polarizer.
  • a hole structure is formed inside the polymer, the second liquid crystal molecules are dispersed in the hole structure, and the first The two liquid crystal molecules are positive liquid crystals.
  • the dimming liquid crystal cell further includes a first electrode layer and a second electrode layer, and the first electrode layer is arranged on the second liquid crystal layer close to the panel main body
  • the second electrode layer is disposed on a side of the second liquid crystal layer away from the first electrode layer.
  • the viewing angle adjustment liquid crystal cell further includes a third electrode layer and a fourth electrode layer, and the third electrode layer is arranged between the first polarizer and the first polarizer. Between the liquid crystal layers, the fourth electrode layer is disposed between the second polarizer and the first liquid crystal layer;
  • the polymer network is arranged along a second direction, and the second direction is inclined relative to the normal direction of the first polarizer;
  • the long axes of the first liquid crystal molecules are arranged along the second direction;
  • the long axes of the first liquid crystal molecules are arranged along a third direction, and the second direction is different from the third direction.
  • the display panel further includes a third polarizer, the third polarizer is arranged on the light exit side of the panel main body, and the optical axis direction of the third polarizer perpendicular to the optical axis direction of the first polarizer.
  • a brightness percentage corresponding to a viewing angle of 45 degrees is greater than 15%.
  • an embodiment of the present application further provides a display device, which includes a backlight module and a display panel as described in the above-mentioned embodiments arranged on the backlight module.
  • the display panel includes a first mode and a second mode, 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 display panel includes:
  • a viewing angle adjusting liquid crystal cell is used to adjust the display viewing angle of the display panel, the viewing angle adjusting liquid crystal cell includes a first liquid crystal layer, the first liquid crystal layer includes a polymer network and is distributed on the polymer The first liquid crystal molecule in the IoT network;
  • a light-adjustable liquid crystal cell the light-adjustable liquid crystal cell is overlapped with the viewing angle adjustment liquid crystal cell; the light-adjustable liquid crystal cell includes a second liquid crystal layer, and the second liquid crystal layer includes a polymer and is distributed in the polymer the second liquid crystal molecule; in the second mode, the dimming liquid crystal cell is used to scatter incident light; and
  • a panel main body, the panel main body is arranged on the light emitting side of the viewing angle adjustment liquid crystal cell and the dimming liquid crystal cell.
  • the display panel further includes a first polarizer and a second polarizer, the optical axis direction of the first polarizer is different from the optical axis direction of the second polarizer Arranged in parallel; the first polarizer is arranged on the liquid crystal cell for adjusting the viewing angle, and the second polarizer is arranged on the side of the liquid crystal cell for adjusting the viewing angle away from the first polarizer;
  • the second liquid crystal molecules have a first refractive index and a second refractive index, the first refractive index is the refractive index of the second liquid crystal molecules in the long axis direction, and the second refractive index is the second refractive index of the second liquid crystal molecules
  • the long axis direction of the second liquid crystal molecules is arranged to cross the normal direction of the first polarizer.
  • the long axis direction of the second liquid crystal molecules is set parallel to the normal direction of the first polarizer.
  • the long axis direction of the second liquid crystal molecules is set perpendicular to the normal direction of the first polarizer.
  • the difference between the first refractive index and the second refractive index is greater than or equal to 0.07 and less than or equal to 0.5.
  • the polymer in the dimming liquid crystal cell, is a polymer network, the second liquid crystal molecules are negative liquid crystals, and the polymer is aligned along the first direction Arranged, the first direction is parallel to the normal direction of the first polarizer.
  • a hole structure is formed inside the polymer, the second liquid crystal molecules are dispersed in the hole structure, and the first The two liquid crystal molecules are positive liquid crystals.
  • the dimming liquid crystal cell further includes a first electrode layer and a second electrode layer, and the first electrode layer is arranged on the second liquid crystal layer close to the panel main body
  • the second electrode layer is disposed on a side of the second liquid crystal layer away from the first electrode layer.
  • the viewing angle adjustment liquid crystal cell further includes a third electrode layer and a fourth electrode layer, and the third electrode layer is arranged between the first polarizer and the first polarizer. Between the liquid crystal layers, the fourth electrode layer is disposed between the second polarizer and the first liquid crystal layer;
  • the polymer network is arranged along a second direction, and the second direction is inclined relative to the normal direction of the first polarizer;
  • the long axes of the first liquid crystal molecules are arranged along the second direction;
  • the long axes of the first liquid crystal molecules are arranged along a third direction, and the second direction is different from the third direction.
  • the display panel in the embodiment of the present application includes a first mode and a second mode, and the viewing angle of the display panel in the first mode is smaller than that of the display panel in the second mode.
  • the viewing angle adjustment liquid crystal cell is used to adjust the display viewing angle of the display panel.
  • the light-adjustable liquid crystal cell is used to scatter the incident light, which improves the brightness of the side view under the wide viewing angle, thereby improving the display effect of the wide viewing angle.
  • FIG. 1 is a first structural schematic diagram of a display panel in a first mode provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of the first structure of the display panel in the second mode provided by the embodiment of the present application;
  • Fig. 3 is a graph of brightness percentages of different liquid crystals under different viewing angles
  • FIG. 4 is a second structural schematic view of the display panel in the first mode provided by the embodiment of the present application.
  • Fig. 5 is a second structural schematic diagram of the display panel in the second mode provided by the embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • Embodiments of the present application provide a display panel and a display device, which will be described in detail below. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments.
  • the embodiment of the present application provides a display panel 100 .
  • the display panel 100 includes a first mode and a second mode.
  • the viewing angle of the display panel 100 in the first mode is smaller than that of the display panel 100 in the second mode.
  • the display panel 100 includes a viewing angle adjusting liquid crystal cell 10 , a dimming liquid crystal cell 20 and a panel main body 30 .
  • the viewing angle adjustment liquid crystal cell 10 is used to adjust the display viewing angle of the display panel 100 .
  • the viewing angle adjustment liquid crystal cell 10 includes a first liquid crystal layer 11 .
  • the first liquid crystal layer 11 includes a polymer network 111 and first liquid crystal molecules 112 distributed in the polymer network 111 .
  • the dimming liquid crystal cell 20 is overlapped with the viewing angle adjusting liquid crystal cell 10 .
  • the dimming liquid crystal cell 20 includes a second liquid crystal layer 21 .
  • the second liquid crystal layer 21 includes a polymer 211 and second liquid crystal molecules 212 distributed in the polymer 211 . In the second mode, the dimming liquid crystal cell 20 is used to scatter the incident light.
  • the panel main body 30 is disposed on the light emitting side of the viewing angle adjusting liquid crystal cell 10 and the dimming liquid crystal cell 20 .
  • the first mode of the display panel 100 may be an anti-peeping display mode, that is, a narrow viewing angle mode; the second mode of the display panel 100 may be a normal display mode, that is, a wide viewing angle mode .
  • the display panel 100 of the embodiment of the present application uses the dimmable liquid crystal cell 20 to scatter the incoming light, which improves the side view brightness at wide viewing angles, and further improves the display effect at wide viewing angles.
  • the light-adjustable liquid crystal cell 20 may be disposed on the light-emitting side or the light-incoming side of the viewing angle-adjusting liquid crystal cell 10 .
  • the light-adjusting liquid crystal cell 20 is disposed on the light-emitting side of the viewing angle-adjusting liquid crystal cell 10 as an example for illustration, but it is not limited thereto.
  • the first liquid crystal layer 11 in the viewing angle adjustment liquid crystal cell 10 is in the wide viewing angle mode, and when the light passes through the viewing angle adjustment liquid crystal cell 10, it will be scattered once, so that The propagation angle of the light expands; and when the scattered light passes through the dimming liquid crystal cell 20 again, due to the difference in the refractive index between the polymer 211 and the second liquid crystal molecule 212, refraction occurs continuously, and the light is scattered again, so that The brightness of the side viewing angle is further improved, thereby improving the display effect of the display panel 100 at a wide viewing angle.
  • the brightness curves in Figure 3 are common liquid crystal wide viewing angle (second mode), ordinary liquid crystal narrow viewing angle (first mode), polymer liquid crystal wide viewing angle (second mode) and polymer liquid crystal wide viewing angle (second mode).
  • first mode ordinary liquid crystal narrow viewing angle
  • second mode polymer liquid crystal wide viewing angle
  • second mode polymer liquid crystal wide viewing angle
  • second mode polymer liquid crystal wide viewing angle
  • the brightness percentage refers to the ratio of the brightness of each viewing angle to the brightness of a viewing angle of 0 degree.
  • the first liquid crystal layer 11 and the second liquid crystal layer 21 are both polymer liquid crystal layers.
  • the luminance percentage corresponding to a viewing angle of 45 degrees is greater than 15%.
  • the luminance percentage corresponding to a viewing angle of 45 degrees may be less than or equal to 60%.
  • the luminance percentage corresponding to a viewing angle of 45 degrees may be 18.66%, 25.77%, 40.56%, 48% or 56.2%.
  • FIG. 3 is an example for illustration, but is not limited thereto.
  • the brightness percentage corresponding to a viewing angle of 45 degrees is 25.77%; in the brightness curve of ordinary liquid crystals, the brightness percentage corresponding to 45 degrees is 6.99%.
  • the brightness percentage corresponding to 45 degrees is 3.3%; in the brightness curve of the second liquid crystal layer 21, the brightness percentage corresponding to the viewing angle of 45 degrees is 1.67%.
  • the display panel 100 further includes a first polarizer p1 and a second polarizer p2.
  • the optical axis direction of the first polarizer p1 is parallel to the optical axis direction of the second polarizer p2.
  • the first polarizer p1 is disposed on the viewing angle adjustment liquid crystal cell 10 .
  • the second polarizer p2 is disposed on a side of the viewing angle adjusting liquid crystal cell 10 away from the first polarizer p1.
  • the second liquid crystal molecules 212 have a first refractive index and a second refractive index.
  • the first refractive index is the refractive index of the second liquid crystal molecules 212 in the long axis direction.
  • the second refractive index is the refractive index of the second liquid crystal molecules 212 in the minor axis direction.
  • the first refractive index is greater than the second refractive index.
  • the polymer 211 has a refractive index equal to the second refractive index.
  • the long axis direction of the second liquid crystal molecules 212 is arranged to cross the normal direction z of the first polarizer p1.
  • the first polarizer p1 is located at the light incident side of the liquid crystal cell 10 for adjusting the viewing angle
  • the second polarizer p2 is located at the light output side of the liquid crystal cell 10 for adjusting the viewing angle.
  • the polarization direction of the polarized light is horizontal.
  • the polarized light can propagate along the long axis direction of the second liquid crystal molecule 212, and since the refractive index of the polymer 211 is smaller than the first refractive index, the light is scattered and a scattering effect is produced; therefore, the dimming liquid crystal Cassette 20 is in scatter mode.
  • the long axis direction of the second liquid crystal molecules 212 is set perpendicular to the normal direction z of the first polarizer p1. That is, the second liquid crystal molecules 212 are in a horizontal state.
  • the long axis direction of the second liquid crystal molecules 212 is set parallel to the normal direction z of the first polarizer p1, that is, the second liquid crystal molecules 212 are in a vertical state.
  • the polarized light can propagate along the short axis direction of the second liquid crystal molecules 212, and since the refractive index of the polymer 211 is equal to the second refractive index, the dimming liquid crystal cell 20 is in the transmissive mode.
  • the difference between the first refractive index and the second refractive index is greater than or equal to 0.07 and less than or equal to 0.5; for example, it may be 0.07, 0.1, 0.15, 0.2, 0.35 or 0.5.
  • the polymer 211 is a polymer network.
  • the second liquid crystal molecules 212 are negative liquid crystals.
  • the polymers 211 are arranged along the first direction. The first direction is parallel to the normal direction z of the first polarizer p1.
  • the polymer 211 is a polymer network that can provide an orientation for the second liquid crystal molecules 212, so that the long axis of the second liquid crystal molecules 212 is also parallel to the normal direction z of the first polarizer p1.
  • the dimming liquid crystal cell 20 further includes a first electrode layer 22 and a second electrode layer 23 .
  • the first electrode layer 22 is disposed on a side of the second liquid crystal layer 21 close to the panel main body 30 .
  • the second electrode layer 23 is disposed on a side of the second liquid crystal layer 21 away from the first electrode layer 22 .
  • the first electrode layer 22 and the second electrode layer 23 are used to apply a voltage to control the long axis of the second liquid crystal molecule 212 to switch between the transmission mode and the scattering mode, specifically, the first electrode layer 22
  • the first electrode layer 22 When the voltage difference between the second electrode layer 23 and the second electrode layer 23 is less than the threshold value, the long axes of the second liquid crystal molecules 212 are arranged along the normal direction z parallel to the first polarizer p1; the first electrode layer 22 and the second electrode layer
  • the threshold can be selected according to actual needs, which is not limited here.
  • the second liquid crystal molecules 212 are arranged along the normal direction z parallel to the first polarizer p1, so that the dimming liquid crystal cell 20 is in the transmission mode.
  • the second liquid crystal molecules 212 are arranged along the direction perpendicular to the normal direction z of the first polarizer p1, so that the dimming liquid crystal cell 20 is in a scattering state. model.
  • the viewing angle adjustment liquid crystal cell 10 further includes a third electrode layer 12 and a fourth electrode layer 13 .
  • the third electrode layer 12 is disposed between the first polarizer p1 and the first liquid crystal layer 11 .
  • the fourth electrode layer 13 is disposed between the second polarizer p2 and the first liquid crystal layer 11 .
  • the polymer network 111 is arranged along the second direction m.
  • the second direction m is inclined relative to the normal direction z of the first polarizer p1.
  • the long axes of the first liquid crystal molecules 112 are arranged along the second direction m.
  • the long axes of the first liquid crystal molecules 112 are arranged along the third direction n.
  • the second direction m is different from the third direction n.
  • the second direction m is inclined relative to the normal direction z (z coordinate axis), and is also inclined relative to the x coordinate axis.
  • the third direction n may be parallel to the x coordinate axis.
  • the polymer network 111 can provide an orientation function for the first liquid crystal molecules 112 .
  • the viewing angle adjustment liquid crystal cell 10 is used in the first mode, so that the light incident along the normal direction z of the first polarizer p1 passes through the second polarizer p2, and makes the light along the direction inclined to the first polarizer p2
  • the incident light in the normal direction z of p1 is blocked or partially blocked by the second polarizer p2; and in the second mode, the long axis of the first liquid crystal molecule 112 is different from the third direction, so that more light can be
  • the viewing angle range of the display panel 100 in the second mode is improved by the second polarizer p2, so that the viewing angle of the display panel 100 in the second mode is larger than the viewing angle of the display panel 100 in the first mode.
  • the third electrode layer 12 and the fourth electrode layer 13 are used to apply voltage to control the long axis of the first liquid crystal molecule 112 to switch between the first mode and the second mode, specifically, the third electrode layer 12 and the fourth
  • the third electrode layer 12 and the fourth When the voltage difference between the electrode layers 13 is smaller than the threshold value, the long axes of the first liquid crystal molecules 112 are arranged along the second direction m; when the voltage difference between the third electrode layer 12 and the fourth electrode layer 13 is larger than the threshold value, the first The long axes of the liquid crystal molecules 112 are arranged along the third direction n, and the threshold value can be selected according to actual needs, which is not limited here.
  • the display panel 100 when no voltage is applied to the third electrode layer 12 and the fourth electrode layer 13 , the display panel 100 is in the first mode.
  • the threshold voltage is applied to the third electrode layer 12 and the fourth electrode layer 13 , the display panel 100 is in the second mode.
  • the display panel 100 further includes a third polarizer p3.
  • the third polarizer p3 is disposed on the light emitting side of the panel body 30 .
  • the optical axis direction of the third polarizer p3 is perpendicular to the optical axis direction of the first polarizer p1.
  • the display panel 100 further includes a fourth polarizer p4, and the fourth polarizer p4 is disposed on a side of the panel body 30 close to the first polarizer p1.
  • the optical axis direction of the fourth polarizer p4 is parallel to the optical axis direction of the first polarizer p1.
  • the viewing angle adjusting liquid crystal cell 10 when the viewing angle adjusting liquid crystal cell 10 is located between the dimming liquid crystal cell 20 and the panel body 30 , the viewing angle adjusting liquid crystal cell 10 and the panel body 30 may pass through the second polarizer p2.
  • the display panel 200 of this embodiment includes a first mode and a second mode.
  • the viewing angle of the display panel 200 in the first mode is smaller than that of the display panel 200 in the second mode.
  • the display panel 200 includes a viewing angle adjusting liquid crystal cell 10 , a dimming liquid crystal cell 20 and a panel main body 30 .
  • the viewing angle adjustment liquid crystal cell 10 is used to adjust the display viewing angle of the display panel 200 .
  • the viewing angle adjustment liquid crystal cell 10 includes a first liquid crystal layer 11 .
  • the first liquid crystal layer 11 includes a polymer network 111 and first liquid crystal molecules 112 distributed in the polymer network 111 .
  • the dimming liquid crystal cell 20 is overlapped with the viewing angle adjusting liquid crystal cell 10 .
  • the dimming liquid crystal cell 20 includes a second liquid crystal layer 21 .
  • the second liquid crystal layer 21 includes a polymer 211 and second liquid crystal molecules 212 distributed in the polymer 211 . In the second mode, the dimming liquid crystal cell 20 is used to scatter the incident light.
  • the panel main body 30 is disposed on the light emitting side of the viewing angle adjusting liquid crystal cell 10 and the dimming liquid crystal cell 20 .
  • the difference between the display panel 200 of this embodiment and the display panel 100 of the above-mentioned embodiment lies in that: in the dimming liquid crystal cell 20 , a hole structure 21 a is formed inside the polymer 211 .
  • the second liquid crystal molecules 212 are dispersed in the hole structure 21a, and the second liquid crystal molecules 212 are positive liquid crystals.
  • the first electrode layer 22 and the second electrode layer 23 are used to apply a voltage to control the long axis of the second liquid crystal molecule 212 to switch between the transmission mode and the scattering mode, specifically, the first electrode layer 22 and the second electrode layer
  • the long axes of the second liquid crystal molecules 212 are arranged in a direction inclined to the normal direction z; when the voltage difference between the first electrode layer 22 and the second electrode layer 23 is greater than the threshold value, The long axes of the second liquid crystal molecules 212 are arranged along the normal direction z parallel to the first polarizer p1, and the threshold value can be selected according to actual needs, and is not limited here.
  • the second liquid crystal molecules 212 are arranged along a direction inclined to the normal direction z of the first polarizer p1, so that the dimming liquid crystal Cassette 20 is in scatter mode.
  • the first electrode layer 22 and the second electrode layer 23 apply a threshold voltage
  • the second liquid crystal molecules 212 are arranged along the normal direction z parallel to the first polarizer p1, so that the dimming liquid crystal cell 20 is in the transmissive mode.
  • the embodiment of the present application also provides a display device 1000 , which includes a backlight module BL and a display panel as in the above embodiment disposed on the backlight module BL.
  • the backlight module BL can be a direct-lit backlight, or a side-incidence backlight.
  • FIG. 6 takes the display panel 100 as an example for illustration, but it is not limited thereto.
  • the display panel please refer to the display panel 100/200 of the above-mentioned embodiment, which will not be repeated here.
  • the display panel in the embodiment of the present application includes a first mode and a second mode, and the viewing angle of the display panel in the first mode is smaller than that of the display panel in the second mode.
  • the viewing angle adjustment liquid crystal cell is used to adjust the display viewing angle of the display panel.
  • the light-adjustable liquid crystal cell is used to scatter the incident light, which improves the brightness of the side view under the wide viewing angle, thereby improving the display effect of the wide viewing angle.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Dispersion Chemistry (AREA)
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Abstract

一种显示面板（100）及显示装置（1000），显示面板（100）包括第一模式和第二模式，第一模式下的显示面板（100）的视角小于第二模式下的显示面板（100）的视角；调光液晶盒（20）与视角调节液晶盒（10）重叠设置；在第二模式下，调光液晶盒（20）用于对射入的光线散射处理；面板主体（30）设置于视角调节液晶盒（10）和调光液晶盒（20）的出光侧。

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，具体涉及一种显示面板及显示装置。
 背景技术
随着显示设备的普及和人们对个人隐私的愈渐重视，具有防窥功能的显示设备更受消费者青睐。传统的防窥功能多通过在显示设备表面加一层防窥膜来实现，但此方式无法在防窥与非防窥模式之间切换，不能满足消费者在不同场合的需求。
在对现有技术的研究和实践过程中，本申请的发明人发现，为了满足消费者进行防窥和非防窥模式的切换，通常会在显示面板下方设置液晶调光盒来实现，但是额外设置了调光盒后，在宽视角（非防窥模式）下，侧视角的亮度相对较低，也即显示装置在宽视角下的显示效果不佳。
 技术问题
本申请实施例提供一种显示面板及显示装置，可以提高显示面板在宽视角下的显示效果。
 技术解决方案
本申请实施例提供一种显示面板，其中，所述显示面板包括第一模式和第二模式，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；所述显示面板包括：
视角调节液晶盒，所述视角调节液晶盒用于调整所述显示面板的显示视角，所述视角调节液晶盒包括第一液晶层，所述第一液晶层包括聚合物网络以及分布于所述聚合物网络中的第一液晶分子；
调光液晶盒，所述调光液晶盒与所述视角调节液晶盒重叠设置；所述调光液晶盒包括第二液晶层，所述第二液晶层包括聚合物和分布于所述聚合物中的第二液晶分子；在所述第二模式下，所述调光液晶盒用于对射入的光线散射处理；以及
面板主体，所述面板主体设置于所述视角调节液晶盒和所述调光液晶盒的出光侧。
可选的，在本申请的一些实施例中，所述显示面板还包括第一偏光片和第二偏光片，所述第一偏光片的光轴方向与所述第二偏光片的光轴方向平行设置；所述第一偏光片设置在所述视角调节液晶盒上，所述第二偏光片设置在所述视角调节液晶盒远离所述第一偏光片的一侧；
所述第二液晶分子具有第一折射率和第二折射率，所述第一折射率为所述第二液晶分子在长轴方向的折射率，所述第二折射率为所述第二液晶分子在短轴方向的折射率，所述第一折射率大于所述第二折射率，所述聚合物的折射率等于所述第二折射率；
在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向交叉设置。
可选的，在本申请的一些实施例中，在所述第一模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向平行设置。
可选的，在本申请的一些实施例中，在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向垂直设置。
可选的，在本申请的一些实施例中，所述第一折射率和所述第二折射率的差值大于或等于0.07且小于或等于0.5。
可选的，在本申请的一些实施例中，在所述调光液晶盒中，所述聚合物为聚合物网络，所述第二液晶分子为负性液晶，所述聚合物沿第一方向排布，所述第一方向平行于所述第一偏光片的法线方向。
可选的，在本申请的一些实施例中，在所述调光液晶盒中，所述聚合物的内部形成有孔洞结构，所述第二液晶分子分散在所述孔洞结构内，所述第二液晶分子为正性液晶。
可选的，在本申请的一些实施例中，所述调光液晶盒还包括第一电极层和第二电极层，所述第一电极层设置在所述第二液晶层靠近所述面板主体的一侧，所述第二电极层设置在所述第二液晶层远离所述第一电极层的一侧。
可选的，在本申请的一些实施例中，所述视角调节液晶盒还包括第三电极层和第四电极层，所述第三电极层设置在所述第一偏光片和所述第一液晶层之间，所述第四电极层设置在所述第二偏光片和所述第一液晶层之间；
所述聚合物网络沿第二方向排布，所述第二方向相对于所述第一偏光片的法线方向倾斜；
在所述第一模式下，所述第一液晶分子的长轴沿所述第二方向排布；
在所述第二模式下，所述第一液晶分子的长轴沿第三方向排布，所述第二方向与所述第三方向不同。
可选的，在本申请的一些实施例中，所述显示面板还包括第三偏光片，所述第三偏光片设置在所述面板主体的出光侧，所述第三偏光片的光轴方向垂直于所述第一偏光片的光轴方向。
可选的，在本申请的一些实施例中，在所述第二模式下，所述第二液晶层的亮度曲线中，对应于45度视角的亮度百分比大于15%。
相应的，本申请实施例还提供一种显示装置，其包括背光模组和设置在所述背光模组上的如上述实施例所述的显示面板。
比如，所述显示面板包括第一模式和第二模式，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；所述显示面板包括：
视角调节液晶盒，所述视角调节液晶盒用于调整所述显示面板的显示视角，所述视角调节液晶盒包括第一液晶层，所述第一液晶层包括聚合物网络以及分布于所述聚合物网络中的第一液晶分子；
调光液晶盒，所述调光液晶盒与所述视角调节液晶盒重叠设置；所述调光液晶盒包括第二液晶层，所述第二液晶层包括聚合物和分布于所述聚合物中的第二液晶分子；在所述第二模式下，所述调光液晶盒用于对射入的光线散射处理；以及
面板主体，所述面板主体设置于所述视角调节液晶盒和所述调光液晶盒的出光侧。
可选的，在本申请的一些实施例中，所述显示面板还包括第一偏光片和第二偏光片，所述第一偏光片的光轴方向与所述第二偏光片的光轴方向平行设置；所述第一偏光片设置在所述视角调节液晶盒上，所述第二偏光片设置在所述视角调节液晶盒远离所述第一偏光片的一侧；
所述第二液晶分子具有第一折射率和第二折射率，所述第一折射率为所述第二液晶分子在长轴方向的折射率，所述第二折射率为所述第二液晶分子在短轴方向的折射率，所述第一折射率大于所述第二折射率，所述聚合物的折射率等于所述第二折射率；
在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向交叉设置。
可选的，在本申请的一些实施例中，在所述第一模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向平行设置。
可选的，在本申请的一些实施例中，在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向垂直设置。
可选的，在本申请的一些实施例中，所述第一折射率和所述第二折射率的差值大于或等于0.07且小于或等于0.5。
可选的，在本申请的一些实施例中，在所述调光液晶盒中，所述聚合物为聚合物网络，所述第二液晶分子为负性液晶，所述聚合物沿第一方向排布，所述第一方向平行于所述第一偏光片的法线方向。
可选的，在本申请的一些实施例中，在所述调光液晶盒中，所述聚合物的内部形成有孔洞结构，所述第二液晶分子分散在所述孔洞结构内，所述第二液晶分子为正性液晶。
可选的，在本申请的一些实施例中，所述调光液晶盒还包括第一电极层和第二电极层，所述第一电极层设置在所述第二液晶层靠近所述面板主体的一侧，所述第二电极层设置在所述第二液晶层远离所述第一电极层的一侧。
可选的，在本申请的一些实施例中，所述视角调节液晶盒还包括第三电极层和第四电极层，所述第三电极层设置在所述第一偏光片和所述第一液晶层之间，所述第四电极层设置在所述第二偏光片和所述第一液晶层之间；
所述聚合物网络沿第二方向排布，所述第二方向相对于所述第一偏光片的法线方向倾斜；
在所述第一模式下，所述第一液晶分子的长轴沿所述第二方向排布；
在所述第二模式下，所述第一液晶分子的长轴沿第三方向排布，所述第二方向与所述第三方向不同。
 有益效果
本申请实施例的显示面板包括第一模式和第二模式，第一模式下的显示面板的视角小于第二模式下的显示面板的视角。视角调节液晶盒用于调整所述显示面板的显示视角。显示面板在第二模式下，采用调光液晶盒对射入的光线进行散射处理，提高了宽视角下的侧视亮度，进而提高了宽视角的显示效果。
 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的显示面板的处于第一模式下的第一种结构示意图；
图2是本申请实施例提供的显示面板的处于第二模式下的第一种结构示意图；
图3是在不同视角下不同液晶的亮度百分比曲线图；
图4是本申请实施例提供的显示面板的处于第一模式下的第二种结构示意图；
图5是本申请实施例提供的显示面板的处于第二模式下的第二种结构示意图；
图6是本申请实施例提供的显示装置的结构示意图。
 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。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。
本申请实施例提供一种显示面板及显示装置，下文进行详细说明。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
请参照图1和图2，本申请实施例提供一种显示面板100。显示面板100包括第一模式和第二模式。第一模式下的显示面板100的视角小于第二模式下的显示面板100的视角。显示面板100包括视角调节液晶盒10、调光液晶盒20和面板主体30。
视角调节液晶盒10用于调整显示面板100的显示视角。视角调节液晶盒10包括第一液晶层11。第一液晶层11包括聚合物网络111以及分布于聚合物网络111中的第一液晶分子112。
调光液晶盒20与视角调节液晶盒10重叠设置。调光液晶盒20包括第二液晶层21。第二液晶层21包括聚合物211和分布于聚合物211中的第二液晶分子212。在第二模式下，调光液晶盒20用于对射入的光线散射处理。
面板主体30设置于视角调节液晶盒10和调光液晶盒20的出光侧。
需要说明的是，在本申请实施例中，显示面板100的第一模式可为防窥显示模式，也就是窄视角模式；显示面板100的第二模式可为常规显示模式，也就是宽视角模式。
本申请实施例的显示面板100在第二模式下，采用调光液晶盒20对射入的光线进行散射处理，提高了宽视角下的侧视亮度，进而提高了宽视角的显示效果。
可选的，调光液晶盒20可以设置在视角调节液晶盒10的出光侧或入光侧。其中本实施例以调光液晶盒20设置在视角调节液晶盒10的出光侧为例进行说明，但不限于于此。
在应用的过程中，当显示面板100处于第二模式时，视角调节液晶盒10中的第一液晶层11处于宽视角模式，光线穿过视角调节液晶盒10时，会被打散一次，使得光的传播角度扩大；而经过一次散射的光线再穿过调光液晶盒20时，由于聚合物211和第二液晶分子212的折射率存在差异而不断发生折射，光线再一次被打散，使得侧视角的光亮度进一步提高，进而提高了显示面板100的宽视角的显示效果。
请参照图3，图3中的亮度曲线是普通液晶宽视角（第二模式）、普通液晶窄视角（第一模式）、聚合物液晶宽视角（第二模式）和聚合物液晶宽视角（第一模式）的亮度百分比的曲线。
需要说明的是，亮度百分比是指各个视角的亮度与0度视角的亮度的比值。其中第一液晶层11和第二液晶层21均是聚合物液晶层。
根据图3可知，聚合物液晶在第二模式下的亮度百分比大于普通液晶在第二模式下的亮度百分比；聚合物液晶在第一模式下的亮度百分比几乎与普通液晶在第一模式下的亮度百分比相同。
可选的，在第二模式下，第二液晶层21的亮度曲线中，对应于45度视角的亮度百分比大于15%。
可选的，在第二模式下，第二液晶层21的亮度曲线中，对应于45度视角的亮度百分比还可以小于或等于60%。
例如，在第二模式下，第二液晶层21的亮度曲线中，对应于45度视角的亮度百分比可以为18.66%、25.77%、40.56%、48%或56.2%。
本申请以图3为例进行阐述，但不限于此。
在第二模式下，第二液晶层21的亮度曲线中，对应于45度视角的亮度百分比为25.77%；普通液晶的亮度曲线中，对应于45度的亮度百分比是6.99%。
在第一模式下，普通液晶的亮度曲线中，对应于45度的亮度百分比是3.3%；第二液晶层21的亮度曲线中，对应于45度视角的亮度百分比为1.67%。
可选的，显示面板100还包括第一偏光片p1和第二偏光片p2。第一偏光片p1的光轴方向与第二偏光片p2的光轴方向平行设置。第一偏光片p1设置在视角调节液晶盒10上。第二偏光片p2设置在视角调节液晶盒10远离第一偏光片p1的一侧。
第二液晶分子212具有第一折射率和第二折射率。第一折射率为第二液晶分子212在长轴方向的折射率。第二折射率为第二液晶分子212在短轴方向的折射率。第一折射率大于第二折射率。聚合物211的折射率等于第二折射率。
在第二模式下，第二液晶分子212的长轴方向与第一偏光片p1的法线方向z交叉设置。
可选的，第一偏光片p1位于视角调节液晶盒10的入光侧，第二偏光片p2位于视角调节液晶盒10的出光侧。
其中，偏振光的偏振方向是水平的。在第二模式下，偏振光可沿着第二液晶分子212的长轴方向传播，由于聚合物211的折射率小于第一折射率，进而使得光线被打散，产生散射效果；故调光液晶盒20处于散射模式。
可选的，在第二模式下，第二液晶分子212的长轴方向与第一偏光片p1的法线方向z垂直设置。也即第二液晶分子212呈水平状态。
可选的，在第一模式下，第二液晶分子212的长轴方向与第一偏光片p1的法线方向z平行设置，也即，第二液晶分子212呈竖直状态。在第一模式下，偏振光可沿着第二液晶分子212的短轴方向传播，由于聚合物211的折射率等于第二折射率，故调光液晶盒20处于透射模式。
可选的，第一折射率和第二折射率的差值大于或等于0.07且小于或等于0.5；比如可以是0.07、0.1、0.15、0.2、0.35或0.5。
可选的，在调光液晶盒20中，聚合物211为聚合物网络。第二液晶分子212为负性液晶。聚合物211沿第一方向排布。第一方向平行于第一偏光片p1的法线方向z。
其中，聚合物211为聚合物网络可以给第二液晶分子212提供一个定向作用，使得第二液晶分子212的长轴也平行于第一偏光片p1的法线方向z。
可选的，调光液晶盒20还包括第一电极层22和第二电极层23。第一电极层22设置在第二液晶层21靠近面板主体30的一侧。第二电极层23设置在第二液晶层21远离第一电极层22的一侧。
在本申请实施例中，第一电极层22与第二电极层23用于加载电压以控制第二液晶分子212的长轴在透射模式和散射模式之间切换，具体地，第一电极层22与第二电极层23之间的电压差小于阈值时，第二液晶分子212的长轴沿着平行于第一偏光片p1的法线方向z排布；第一电极层22与第二电极层23之间的电压差大于阈值时，第二液晶分子212的长轴沿垂直于法线方向z的方向排布，且该阈值可根据实际需求进行选择，在此不作限定。
也就是说，当第一电极层22与第二电极层23不施加电压时，第二液晶分子212沿平行于第一偏光片p1的法线方向z排布，以使得调光液晶盒20处于透射模式。当第一电极层22与第二电极层23施加阈值电压时，第二液晶分子212沿着垂直于第一偏光片p1的法线方向z的方向排布，以使得调光液晶盒20处于散射模式。
可选的，视角调节液晶盒10还包括第三电极层12和第四电极层13。第三电极层12设置在第一偏光片p1和第一液晶层11之间。第四电极层13设置在第二偏光片p2和第一液晶层11之间。
聚合物网络111沿第二方向m排布。第二方向m相对于第一偏光片p1的法线方向z倾斜。
在第一模式下，第一液晶分子112的长轴沿第二方向m排布。
在第二模式下，第一液晶分子112的长轴沿第三方向n排布。第二方向m与第三方向n不同。
需要说明的是，在空间坐标系中，第二方向m相对于法线方向z（z坐标轴）倾斜，也相对于x坐标轴倾斜。可选的，第三方向n可平行于x坐标轴。
其中，聚合物网络111可以给第一液晶分子112提供一个定向作用。在本实施例中，视角调节液晶盒10用于在第一模式下，使得沿第一偏光片p1的法线方向z入射的光线通过第二偏光片p2，且使得沿倾斜于第一偏光片p1的法线方向z入射的光线藉由第二偏光片p2阻挡或部分阻挡；而在第二模式下，第一液晶分子112的长轴与第三方向相异，以使得更多的光线可以通过第二偏光片p2，以提高显示面板100在第二模式下的视角范围，以使得显示面板100在第二模式下的视角大于显示面板100在第一模式下的视角。
另外，第三电极层12与第四电极层13用于加载电压以控制第一液晶分子112的长轴在第一模式和第二模式之间切换，具体地，第三电极层12与第四电极层13之间的电压差小于阈值时，第一液晶分子112的长轴沿第二方向m排布；第三电极层12与第四电极层13之间的电压差大于阈值时，第一液晶分子112的长轴沿第三方向n排布，且该阈值可根据实际需求进行选择，在此不作限定。也就是说，当第三电极层12与第四电极层13不施加电压时，显示面板100处于第一模式。当第三电极层12与第四电极层13施加阈值电压时，显示面板100处于第二模式。
可选的，显示面板100还包括第三偏光片p3。第三偏光片p3设置在面板主体30的出光侧。第三偏光片p3的光轴方向垂直于第一偏光片p1的光轴方向。
在本实施例的显示面板100中，显示面板100还包括第四偏光片p4，第四偏光片p4设置在面板主体30靠近第一偏光片p1的一侧。第四偏光片p4的光轴方向平行于第一偏光片p1的光轴方向。
在一些实施例中，当视角调节液晶盒10位于调光液晶盒20和面板主体30之间时，视角调节液晶盒10和面板主体30可通过第二偏光片p2。
请参照图4和图5，本实施例的显示面板200包括第一模式和第二模式。第一模式下的显示面板200的视角小于第二模式下的显示面板200的视角。显示面板200包括视角调节液晶盒10、调光液晶盒20和面板主体30。
视角调节液晶盒10用于调整显示面板200的显示视角。视角调节液晶盒10包括第一液晶层11。第一液晶层11包括聚合物网络111以及分布于聚合物网络111中的第一液晶分子112。
调光液晶盒20与视角调节液晶盒10重叠设置。调光液晶盒20包括第二液晶层21。第二液晶层21包括聚合物211和分布于聚合物211中的第二液晶分子212。在第二模式下，调光液晶盒20用于对射入的光线散射处理。
面板主体30设置于视角调节液晶盒10和调光液晶盒20的出光侧。
本实施例的显示面板200与上述实施例的显示面板100的不同之后在于：在调光液晶盒20中，聚合物211的内部形成有孔洞结构21a。第二液晶分子212分散在孔洞结构21a内，第二液晶分子212为正性液晶。
其中，第一电极层22与第二电极层23用于加载电压以控制第二液晶分子212的长轴在透射模式和散射模式之间切换，具体地，第一电极层22与第二电极层23之间的电压差小于阈值时，第二液晶分子212的长轴沿倾斜于法线方向z的方向排布；第一电极层22与第二电极层23之间的电压差大于阈值时，第二液晶分子212的长轴沿着平行于第一偏光片p1的法线方向z排布，且该阈值可根据实际需求进行选择，在此不作限定。
也就是说，当第一电极层22与第二电极层23不施加电压时，第二液晶分子212沿着倾斜于第一偏光片p1的法线方向z的方向排布，以使得调光液晶盒20处于散射模式。当第一电极层22与第二电极层23施加阈值电压时，第二液晶分子212沿平行于第一偏光片p1的法线方向z排布，以使得调光液晶盒20处于透射模式。
请参照图6，相应的，本申请实施例还提供一种显示装置1000，其包括背光模组BL和设置在背光模组BL上的如上述实施例显示面板。
可选的，背光模组BL可以是直下式背光，也可以是侧入射背光。
需要说明的是，图6以显示面板100为例作为示意，但并不限于此。其中显示面板的具体阐述请参照上述实施例的显示面板100/200，此处不再赘述。
本申请实施例的显示面板包括第一模式和第二模式，第一模式下的显示面板的视角小于第二模式下的显示面板的视角。视角调节液晶盒用于调整所述显示面板的显示视角。显示面板在第二模式下，采用调光液晶盒对射入的光线进行散射处理，提高了宽视角下的侧视亮度，进而提高了宽视角的显示效果。
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方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式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，所述显示面板包括第一模式和第二模式，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；所述显示面板包括：
    视角调节液晶盒，所述视角调节液晶盒用于调整所述显示面板的显示视角，所述视角调节液晶盒包括第一液晶层，所述第一液晶层包括聚合物网络以及分布于所述聚合物网络中的第一液晶分子；
    调光液晶盒，所述调光液晶盒与所述视角调节液晶盒重叠设置；所述调光液晶盒包括第二液晶层，所述第二液晶层包括聚合物和分布于所述聚合物中的第二液晶分子；在所述第二模式下，所述调光液晶盒用于对射入的光线散射处理；以及
    面板主体，所述面板主体设置于所述视角调节液晶盒和所述调光液晶盒的出光侧。
  2. 根据权利要求1所述的显示面板，其中，所述显示面板还包括第一偏光片和第二偏光片，所述第一偏光片的光轴方向与所述第二偏光片的光轴方向平行设置；所述第一偏光片设置在所述视角调节液晶盒上，所述第二偏光片设置在所述视角调节液晶盒远离所述第一偏光片的一侧；
    所述第二液晶分子具有第一折射率和第二折射率，所述第一折射率为所述第二液晶分子在长轴方向的折射率，所述第二折射率为所述第二液晶分子在短轴方向的折射率，所述第一折射率大于所述第二折射率，所述聚合物的折射率等于所述第二折射率；
    在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向交叉设置。
  3. 根据权利要求2所述的显示面板，其中，在所述第一模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向平行设置。
  4. 根据权利要求2所述的显示面板，其中，在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向垂直设置。
  5. 根据权利要求2所述的显示面板，其中，所述第一折射率和所述第二折射率的差值大于或等于0.07且小于或等于0.5。
  6. 根据权利要求2所述的显示面板，其中，在所述调光液晶盒中，所述聚合物为聚合物网络，所述第二液晶分子为负性液晶，所述聚合物沿第一方向排布，所述第一方向平行于所述第一偏光片的法线方向。
  7. 根据权利要求3所述的显示面板，其中，在所述调光液晶盒中，所述聚合物的内部形成有孔洞结构，所述第二液晶分子分散在所述孔洞结构内，所述第二液晶分子为正性液晶。
  8. 根据权利要求2所述的显示面板，其中，所述调光液晶盒还包括第一电极层和第二电极层，所述第一电极层设置在所述第二液晶层靠近所述面板主体的一侧，所述第二电极层设置在所述第二液晶层远离所述第一电极层的一侧。
  9. 根据权利要求2所述的显示面板，其中，所述视角调节液晶盒还包括第三电极层和第四电极层，所述第三电极层设置在所述第一偏光片和所述第一液晶层之间，所述第四电极层设置在所述第二偏光片和所述第一液晶层之间；
    所述聚合物网络沿第二方向排布，所述第二方向相对于所述第一偏光片的法线方向倾斜；
    在所述第一模式下，所述第一液晶分子的长轴沿所述第二方向排布；
    在所述第二模式下，所述第一液晶分子的长轴沿第三方向排布，所述第二方向与所述第三方向不同。
  10. 根据权利要求2所述的显示面板，其中，所述显示面板还包括第三偏光片，所述第三偏光片设置在所述面板主体的出光侧，所述第三偏光片的光轴方向垂直于所述第一偏光片的光轴方向。
  11. 根据权利要求1所述的显示面板，其中，在所述第二模式下，所述第二液晶层的亮度曲线中，对应于45度视角的亮度百分比大于15%。
  12. 一种显示装置，其包括背光模组和设置在所述背光模组上的显示面板；
    所述显示面板包括第一模式和第二模式，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；所述显示面板包括：
    视角调节液晶盒，所述视角调节液晶盒用于调整所述显示面板的显示视角，所述视角调节液晶盒包括第一液晶层，所述第一液晶层包括聚合物网络以及分布于所述聚合物网络中的第一液晶分子；
    调光液晶盒，所述调光液晶盒与所述视角调节液晶盒重叠设置；所述调光液晶盒包括第二液晶层，所述第二液晶层包括聚合物和分布于所述聚合物中的第二液晶分子；在所述第二模式下，所述调光液晶盒用于对射入的光线散射处理；以及
    面板主体，所述面板主体设置于所述视角调节液晶盒和所述调光液晶盒的出光侧。
  13. 根据权利要求12所述的显示装置，其中，所述显示面板还包括第一偏光片和第二偏光片，所述第一偏光片的光轴方向与所述第二偏光片的光轴方向平行设置；所述第一偏光片设置在所述视角调节液晶盒上，所述第二偏光片设置在所述视角调节液晶盒远离所述第一偏光片的一侧；
    所述第二液晶分子具有第一折射率和第二折射率，所述第一折射率为所述第二液晶分子在长轴方向的折射率，所述第二折射率为所述第二液晶分子在短轴方向的折射率，所述第一折射率大于所述第二折射率，所述聚合物的折射率等于所述第二折射率；
    在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向交叉设置。
  14. 根据权利要求13所述的显示装置，其中，在所述第一模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向平行设置。
  15. 根据权利要求13所述的显示装置，其中，在所述第二模式下，所述第二液晶分子的长轴方向与所述第一偏光片的法线方向垂直设置。
  16. 根据权利要求13所述的显示装置，其中，所述第一折射率和所述第二折射率的差值大于或等于0.07且小于或等于0.5。
  17. 根据权利要求13所述的显示装置，其中，在所述调光液晶盒中，所述聚合物为聚合物网络，所述第二液晶分子为负性液晶，所述聚合物沿第一方向排布，所述第一方向平行于所述第一偏光片的法线方向。
  18. 根据权利要求13所述的显示装置，其中，在所述调光液晶盒中，所述聚合物的内部形成有孔洞结构，所述第二液晶分子分散在所述孔洞结构内，所述第二液晶分子为正性液晶。
  19. 根据权利要求13所述的显示装置，其中，所述调光液晶盒还包括第一电极层和第二电极层，所述第一电极层设置在所述第二液晶层靠近所述面板主体的一侧，所述第二电极层设置在所述第二液晶层远离所述第一电极层的一侧。
  20. 根据权利要求13所述的显示装置，其中，所述视角调节液晶盒还包括第三电极层和第四电极层，所述第三电极层设置在所述第一偏光片和所述第一液晶层之间，所述第四电极层设置在所述第二偏光片和所述第一液晶层之间；
    所述聚合物网络沿第二方向排布，所述第二方向相对于所述第一偏光片的法线方向倾斜；
    在所述第一模式下，所述第一液晶分子的长轴沿所述第二方向排布；
    在所述第二模式下，所述第一液晶分子的长轴沿第三方向排布，所述第二方向与所述第三方向不同。
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CN111427203A (zh) * 2020-04-08 2020-07-17 深圳市华星光电半导体显示技术有限公司 显示装置及其制作方法
CN113625373A (zh) * 2020-05-06 2021-11-09 中强光电股份有限公司 显示装置、视角限制器及其制造方法
CN111929943A (zh) * 2020-08-21 2020-11-13 昆山龙腾光电股份有限公司 显示面板及显示装置
CN112711152A (zh) * 2020-12-31 2021-04-27 武汉华星光电技术有限公司 一种液晶显示面板和液晶显示装置
CN113552741A (zh) * 2021-08-13 2021-10-26 武汉华星光电技术有限公司 防窥膜、显示面板及显示装置

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