CN110964543A - Self-orientation liquid crystal material, preparation method of display panel and display panel - Google Patents

Self-orientation liquid crystal material, preparation method of display panel and display panel Download PDF

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CN110964543A
CN110964543A CN201911188585.3A CN201911188585A CN110964543A CN 110964543 A CN110964543 A CN 110964543A CN 201911188585 A CN201911188585 A CN 201911188585A CN 110964543 A CN110964543 A CN 110964543A
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liquid crystal
self
display panel
crystal material
array substrate
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王亚楠
兰松
陈兴武
曾德仁
谢忠憬
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TCL China Star Optoelectronics Technology Co Ltd
TCL Huaxing Photoelectric Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00Liquid crystal materials
    • C09K19/52Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
    • C09K19/54Additives having no specific mesophase characterised by their chemical composition
    • C09K19/56Aligning agents
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509Filters, e.g. light shielding masks
    • G02F1/133514Colour filters
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1339Gaskets; Spacers; Sealing of cells

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Abstract

The invention provides a self-oriented liquid crystal material, a preparation method of a display panel and the display panel, wherein the self-oriented liquid crystal material comprises a vertical orientation agent, a polymerizable monomer, a chiral monomer and negative liquid crystal; the alignment function is realized by adding the alignment active agent into the negative liquid crystal material, and the overall alignment performance of the liquid crystal is optimized by controlling the alignment of the chiral monomer to the negative liquid crystal molecules, so that the material cost of the liquid crystal display is saved, the preparation flow of the display panel is saved, and the overall optical performance can be optimized.

Description

Self-orientation liquid crystal material, preparation method of display panel and display panel
Technical Field
The invention relates to the technical field of display, in particular to a self-orientation liquid crystal material, a preparation method of a display panel and the display panel.
Background
A layer of thin film material is respectively disposed on a color film substrate and an array substrate of a Liquid Crystal Display (LCD), and the thin film material mainly functions to align Liquid Crystal molecules in a certain direction, which is called as an alignment film. Such alignment films are mainly classified into a rubbing type alignment film and a light type alignment film, but both of them have their own disadvantages. The process yield is reduced for the problems of dust particles, static residues, brush marks and the like easily caused by rubbing the alignment film; however, the photo-alignment film has poor heat resistance and aging resistance and weak ability of anchoring liquid crystal molecules. The method of forming alignment by reacting liquid crystal with ultraviolet light in photo-alignment is commonly used in the art, but the alignment film itself has high polarity and high water absorption, and is easily deteriorated to cause uneven alignment during storage and transportation, and the alignment film material is expensive, and the process of forming a film on the array substrate is complicated, resulting in an increase in the panel cost. If the alignment film in the liquid crystal display is omitted, the liquid crystal molecules cannot be vertically arranged, and on one hand, the panel has the problems of uneven brightness of the display, poor liquid crystal alignment and the like; on the other hand, the panel display afterimage is also serious.
Therefore, it is urgently needed to provide a new self-aligned liquid crystal material, a preparation method of a display panel and the display panel, which can ensure the optical performance of the display panel while reducing the preparation of a PI film.
Disclosure of Invention
The invention aims to provide a self-orientation liquid crystal material, a preparation method of a display panel and the display panel, which realize an orientation function by adding an orientation active agent into a negative liquid crystal material, optimize the overall orientation performance of liquid crystal by utilizing the orientation control of a chiral monomer on negative liquid crystal molecules, save the material cost of a liquid crystal display, save the preparation flow of the display panel and simultaneously optimize the overall optical performance.
To solve the above problems, the present invention provides a self-aligned liquid crystal material comprising: vertical alignment agents, polymerizable monomers, chiral monomers, and negative-type liquid crystals; wherein the end of the vertical orientation agent structure molecule contains hydroxyl or a group capable of forming a hydrogen bond, the rigid part of the side chain contains a reactive functional group, the mass ratio of the vertical orientation agent is 0.1-5%, and the mass ratio of the polymerizable monomer is 0.1-1%.
Further, the air conditioner is provided with a fan,
the molecular structural formula of the vertical alignment agent comprises any one of the following molecular structural formulas:
Figure BDA0002293003050000021
Figure BDA0002293003050000031
further, the polymerizable monomer comprises one or more combinations of acrylate and acrylate derivatives, methacrylate and methacrylate derivatives, styrene and styrene derivatives, epoxy resin and aliphatic amine epoxy curing agent.
Further, the molecular structural formula of the chiral monomer comprises one or more of the following structures:
Figure BDA0002293003050000032
the invention provides a preparation method of a display panel, which comprises the following steps: providing an array substrate, a color film substrate and the self-aligned liquid crystal material as claimed in any one of claims 1 to 4; coating a polyimide film on one side of the array substrate or the color film substrate to form an alignment film; dripping the self-orientation liquid crystal material to one side of the array substrate or the color film substrate, and coating frame glue to limit the self-orientation liquid crystal material; bonding the array substrate and the color film substrate together in a vacuum environment, and then curing the frame glue to form a liquid crystal box; applying a voltage of 7-25V to the liquid crystal box, enabling negative liquid crystal to deflect, irradiating the self-orientation liquid crystal material for the first time through ultraviolet light, enabling the vertical orientation agent and the polymerizable monomer to be polymerized in the illumination process, enabling the vertical orientation agent and the polymerizable monomer to be subjected to phase separation from the self-orientation liquid crystal material, depositing the vertical orientation agent and the polymerizable monomer on the opposite surfaces of the array substrate and the color film substrate, and forming a polymer orientation film; and after the voltage is removed, irradiating the liquid crystal box for the second time by using ultraviolet light again for second irradiation, so that the residual polymerizable monomer in the liquid crystal box and the vertical alignment agent are completely reacted to form a display panel.
Further, in the step of irradiating the self-aligned liquid crystal material with the ultraviolet light for the first time, the energy of the first irradiation is 2 to 100mW/cm2, the wavelength range of the effective light is 310 to 390nm, and the irradiation time is 10 to 120s, and in the step of irradiating the liquid crystal cell with the ultraviolet light again for the second time, the second irradiation time is 40 to 180min, and the wavelength range of the ultraviolet effective light is 310 to 390 nm.
The invention also provides a display panel prepared by the preparation method of the display panel.
Further, the display panel includes: the array substrate is provided with a first transparent electrode; the liquid crystal box is arranged on one side of the transparent electrode of the array substrate; the color film substrate is provided with a second transparent electrode and is arranged on one side, away from the array substrate, of the liquid crystal box, and the first transparent electrode and the second transparent electrode are oppositely arranged; the alignment film is arranged between the array substrate and the liquid crystal box; or between the color film substrate and the liquid crystal box; the liquid crystal box comprises a self-orientation liquid crystal material and frame glue surrounding the self-orientation liquid crystal material, the self-orientation liquid crystal material comprises a vertical orientation agent, a polymerizable monomer, a chiral monomer and negative liquid crystal, and polymer alignment films are arranged on two sides of the liquid crystal box, which are close to the array substrate and the color film substrate.
Further, the materials of the polymer alignment film are a vertical alignment agent and a polymerizable monomer.
Further, the pitch of the liquid crystal box is 3-30 um; the refractive index of the negative-type liquid crystal is 300-600; the height of the liquid crystal box is 2.3-4.5 um.
The invention has the beneficial effects that: the invention provides a self-orientation liquid crystal material, a preparation method of a display panel and the display panel, which realize an orientation function by adding an orientation active agent into a negative liquid crystal material, optimize the overall orientation performance of liquid crystal by utilizing the orientation control of chiral monomers on negative liquid crystal molecules, save the material cost of a liquid crystal display, save the preparation flow of the display panel and simultaneously optimize the overall optical performance. According to the display panel prepared by the preparation method, the polymer alignment films are arranged on the two sides of the liquid crystal box close to the array substrate and the color film substrate, so that the alignment films on the single side (the array substrate side or the color film substrate side) of the traditional display panel are replaced, the manufacturing process is reduced, and the cost is saved. And the alignment degree of the polymer alignment film and the alignment film is increased, abnormal alignment areas are reduced, the optical performance of the product is improved, the penetration rate is improved, and the design complexity of the display panel is reduced.
Drawings
The invention is further described below with reference to the figures and examples.
FIG. 1 is a schematic structural diagram of a display panel according to the present invention when the display panel is not powered;
fig. 2 is a schematic structural diagram of an array substrate, a self-aligned liquid crystal material and a sealant according to the present invention;
fig. 3 is a schematic structural view of the frame glue curing provided by the present invention;
FIG. 4 is a schematic structural view of a display panel according to the present invention when powered on;
fig. 5 is a schematic structural diagram of a display panel according to the present invention after power is applied.
An array substrate 100; a color film substrate 200; a self-aligned liquid crystal material 104;
a vertical alignment agent 1042; a polymerizable monomer 1041; a chiral monomer 1043;
negative type liquid crystal 1044; a first transparent electrode 101; a second transparent electrode 201;
an alignment film 202; a polymer alignment film 110; ultraviolet light 301;
a mask plate 300; the frame glue 103; a liquid crystal cell 10.
Detailed Description
In order that the present invention may be better understood, the following examples are included to further illustrate the invention, but not to limit its scope.
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. The directional terms used in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc., refer to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention.
As shown in fig. 1, the present invention provides a self-aligned liquid crystal material 104 comprising: a vertical alignment agent 1042, a polymerizable monomer 1041, a chiral monomer 1043, and a negative-type liquid crystal 1044.
The end of the structural molecule of the vertical aligning agent 1042 contains a hydroxyl group or a group capable of forming a hydrogen bond, the rigid part of the side chain contains a reactive functional group, the mass ratio of the vertical aligning agent 1042 is 0.1-5%, and the mass ratio of the polymerizable monomer 1041 is 0.1-1%.
The molecular structural formula of the vertical alignment agent 1042 includes any one of the following molecular structural formulas.
Figure BDA0002293003050000071
The polymerizable monomer 1041 includes one or more of acrylate and acrylate derivatives, methacrylate and methacrylate derivatives, styrene and styrene derivatives, epoxy resin and aliphatic amine epoxy curing agent.
The molecular structural formula of the chiral monomer 1043 includes one or more of the following structures:
Figure BDA0002293003050000072
the invention realizes the alignment function by adding the alignment active agent into the negative-type liquid crystal 1044 material, and optimizes the overall alignment performance of the liquid crystal by controlling the alignment of the negative-type liquid crystal 1044 molecules by the chiral monomer 1043, thereby realizing the material cost saving and the process capability saving of the liquid crystal display and simultaneously optimizing the overall optical performance.
The invention provides a preparation method of a display panel, which comprises the following steps:
s1) as shown in fig. 1, providing an array substrate 100, a color filter substrate 200, and the self-aligned liquid crystal material 104.
The array substrate 100 has a first transparent electrode 101, and the color filter substrate 200 has a second transparent electrode 201.
The self-aligned liquid crystal material 104 comprises: a vertical alignment agent 1042, a polymerizable monomer 1041, a chiral monomer 1043, and a negative-type liquid crystal 1044.
S2) coating a polyimide film on one side of the color filter substrate 200 to form an alignment film 202.
S3), as shown in fig. 2, the self-aligned liquid crystal material 104 is dropped on one side of the array substrate 100 by means of ink jet printing, and the self-aligned liquid crystal material 104 is defined by coating the sealant 103.
S4), as shown in fig. 3, bonding the array substrate 100 and the color filter substrate 200 together in a vacuum environment, and then curing the sealant 103 to form a liquid crystal cell 10; when the array substrate 100 is attached to the color filter substrate 200, attention should be paid to matching one side of the self-aligned liquid crystal material 104 of the array substrate 100 with one side of the alignment layer 202 of the color filter substrate 200.
The frame sealant 103 is cured by irradiating the region of the frame sealant 103 with ultraviolet rays 301, and the mask plate 300 is disposed above the non-frame sealant region of the liquid crystal cell 10 for shielding.
S5) as shown in fig. 4, applying a voltage of 7-25V to the liquid crystal cell 10, mainly by connecting the first transparent electrode 101 and the second transparent electrode 201, at this time, the negative liquid crystal 1044 deflects, the self-aligned liquid crystal material 104 is irradiated for the first time by the ultraviolet light 301, during the irradiation process, the vertical alignment agent 1042 polymerizes with the polymerizable monomer 1041, and phase separates from the self-aligned liquid crystal material 104, and deposits on the surface of the array substrate 100 opposite to the color filter substrate 200 to form a polymer alignment film 110.
The energy of the first irradiation is 2-100 mW/cm2, the wave band range of the effective light is 310-390 nm, the irradiation time is 10-120 s,
s6) as shown in fig. 5, after the voltage is removed, the liquid crystal cell 10 is irradiated with the ultraviolet rays 301 again for the second irradiation, so that the residual polymerizable monomer 1041 in the liquid crystal cell 10 and the vertical alignment agent 1042 are all reacted to form a liquid crystal display panel.
The second irradiation time is 40-180 min, and the wave band range of the ultraviolet 301 effective light is 310-390 nm.
In another embodiment, the alignment film 202 in the step S2) may be formed on one side of the array substrate 100; in step S3), the self-aligned liquid crystal material 104 may be dropped on one side of the color filter substrate 200 by inkjet printing.
The invention provides a preparation method of a display panel, in particular to a preparation method of a liquid crystal display panel, wherein the self-orientation liquid crystal material 104 is applied to the display panel, in the illumination process, the vertical orientation agent 1042 is polymerized with the polymerizable monomer 1041, phase separation occurs from the self-orientation liquid crystal material 104, the polymerization occurs on the opposite surfaces of the array substrate 100 and the color film substrate 200, a polymer alignment film 110 is formed, and the polymer alignment film 110 replaces the alignment film on the array substrate 100 side or the color film substrate 200 side, so that the manufacturing process is reduced, and the cost is saved.
With continued reference to fig. 5, the invention further provides a display panel prepared by the preparation method of the display panel.
The display panel includes: the liquid crystal display device comprises an array substrate 100, a liquid crystal cell 10, a color film substrate 200 and an alignment film 202.
The array substrate 100 has a first transparent electrode 101. The liquid crystal cell 10 is disposed on one side of the first transparent electrode 101 of the array substrate 100.
The color film substrate 200 is provided with a second transparent electrode 201, and is disposed on one side of the liquid crystal cell 10 away from the array substrate 100, and the first transparent electrode 101 is disposed opposite to the second transparent electrode 201.
The alignment film 202 is disposed between the array substrate 100 and the liquid crystal cell 10; in other embodiments, the alignment film 202 may also be disposed between the color film substrate 200 and the liquid crystal cell 10.
The liquid crystal cell 10 includes a self-aligned liquid crystal material 104 and a sealant 103 surrounding the self-aligned liquid crystal material 104, the self-aligned liquid crystal material 104 includes a vertical alignment agent 1042, a polymerizable monomer 1041, a chiral monomer 1043, and a negative liquid crystal 1044, and both sides of the liquid crystal cell 10 near the array substrate 100 and the color film substrate 200 are provided with polymer alignment films 110.
The materials of the polymer alignment film 110 are a vertical alignment agent 1042 and a polymerizable monomer 1041.
The pitch of the liquid crystal box 10 is 3-30 um; since the structure of the chiral monomer 1043 affects the arrangement of the negative-type liquid crystal 1044, different chiral monomers 1043 affect the twisted arrangement of the negative-type liquid crystal 1044 to different degrees.
The refractive index of the negative-type liquid crystal 1044 is 300-600; the height of the liquid crystal box 10 is 2.3-4.5 um.
The invention provides a display panel, which is prepared by the preparation method of the display panel, wherein polymer alignment films 110 are arranged on the two sides of the liquid crystal box 10 close to the array substrate 100 and the color film substrate 200, so that the alignment films on one side (the array substrate 100 side or the color film substrate 200 side) of the traditional display panel are replaced, the manufacturing process is reduced, and the cost is saved. And the alignment order of the polymer alignment film 110 and the alignment film 202 is increased, the abnormal alignment region is reduced, the optical performance of the product is improved, the penetration rate is improved, and the design complexity of the display panel is reduced.
It should be noted that many variations and modifications of the embodiments of the present invention fully described are possible and are not to be considered as limited to the specific examples of the above embodiments. The above examples are given by way of illustration of the invention and are not intended to limit the invention. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.

Claims (10)

1. A self-aligned liquid crystal material, comprising:
vertical alignment agents, polymerizable monomers, chiral monomers, and negative-type liquid crystals;
wherein the end of the vertical orientation agent structure molecule contains hydroxyl or a group capable of forming a hydrogen bond, the rigid part of the side chain contains a reactive functional group, the mass ratio of the vertical orientation agent is 0.1-5%, and the mass ratio of the polymerizable monomer is 0.1-1%.
2. The self-aligned liquid crystal material according to claim 1,
the molecular structural formula of the vertical alignment agent comprises any one of the following molecular structural formulas:
Figure FDA0002293003040000011
3. the self-aligned liquid crystal material according to claim 1,
the polymerizable monomer comprises one or more of acrylate and acrylate derivatives, methacrylate and methacrylate derivatives, styrene and styrene derivatives, epoxy resin and aliphatic amine epoxy curing agent.
4. The self-aligned liquid crystal material according to claim 1,
the molecular structural formula of the chiral monomer comprises one or more of the following structures:
Figure FDA0002293003040000021
5. a preparation method of a display panel is characterized by comprising the following steps:
providing an array substrate, a color film substrate and any one of the self-aligned liquid crystal materials of claim 1;
coating a polyimide film on one side of the array substrate or the color film substrate to form an alignment film;
dripping the self-orientation liquid crystal material to one side of the array substrate or the color film substrate, and coating frame glue to limit the self-orientation liquid crystal material;
bonding the array substrate and the color film substrate together in a vacuum environment, and then curing the frame glue to form a liquid crystal box;
applying a voltage of 7-25V to the liquid crystal box, enabling negative liquid crystal to deflect, irradiating the self-orientation liquid crystal material for the first time through ultraviolet light, enabling the vertical orientation agent and the polymerizable monomer to be polymerized in the illumination process, enabling the vertical orientation agent and the polymerizable monomer to be subjected to phase separation from the self-orientation liquid crystal material, depositing the vertical orientation agent and the polymerizable monomer on the opposite surfaces of the array substrate and the color film substrate, and forming a polymer orientation film;
after the voltage is removed, the liquid crystal box is irradiated by ultraviolet light again for the second irradiation, so that the residual polymerizable monomer in the liquid crystal box and the vertical alignment agent are completely reacted to form a display panel.
6. The method for manufacturing a display panel according to claim 5, wherein in the step of irradiating the self-aligned liquid crystal material with ultraviolet light for the first time,
the energy of the first irradiation is 2-100 mW/cm2, the wave band range of the effective light is 310-390 nm, the irradiation time is 10-120 s,
in the step of irradiating the liquid crystal cell with ultraviolet light again for the second time,
the second irradiation time is 40-180 min, and the wave band range of the ultraviolet effective light is 310-390 nm.
7. A display panel prepared by the method for manufacturing a display panel according to claim 5.
8. The display panel according to claim 7, characterized by comprising:
the array substrate is provided with a first transparent electrode;
the liquid crystal box is arranged on one side of the first transparent electrode of the array substrate;
the color film substrate is provided with a second transparent electrode and is arranged on one side, away from the array substrate, of the liquid crystal box, and the first transparent electrode and the second transparent electrode are oppositely arranged;
the alignment film is arranged between the array substrate and the liquid crystal box; or between the color film substrate and the liquid crystal box;
the liquid crystal box comprises a self-orientation liquid crystal material and frame glue surrounding the self-orientation liquid crystal material, the self-orientation liquid crystal material comprises a vertical orientation agent, a polymerizable monomer, a chiral monomer and negative liquid crystal, and polymer alignment films are arranged on two sides of the liquid crystal box, which are close to the array substrate and the color film substrate.
9. The display panel according to claim 8,
the material of the polymer alignment film is a vertical alignment agent and a polymerizable monomer.
10. The display panel according to claim 8,
the pitch of the liquid crystal box is 3-30 um;
the refractive index of the negative-type liquid crystal is 300-600;
the height of the liquid crystal box is 2.3-4.5 um.
CN201911188585.3A 2019-11-28 2019-11-28 Self-orientation liquid crystal material, preparation method of display panel and display panel Pending CN110964543A (en)

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CN113589577A (en) * 2021-07-21 2021-11-02 Tcl华星光电技术有限公司 Display panel and mobile terminal
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CN108919566A (en) * 2018-07-18 2018-11-30 深圳市华星光电技术有限公司 Layer of liquid crystal molecule and liquid crystal display for liquid crystal display
CN108897173A (en) * 2018-08-14 2018-11-27 深圳市华星光电技术有限公司 The production method and liquid crystal display panel of liquid crystal display panel

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CN112558361A (en) * 2020-12-30 2021-03-26 深圳市华星光电半导体显示技术有限公司 Liquid crystal display panel and preparation method thereof
CN112558361B (en) * 2020-12-30 2022-11-08 深圳市华星光电半导体显示技术有限公司 Liquid crystal display panel and preparation method thereof
CN113589577A (en) * 2021-07-21 2021-11-02 Tcl华星光电技术有限公司 Display panel and mobile terminal
US12025884B2 (en) 2022-04-18 2024-07-02 AUO Corporation Display device and manufacturing method thereof

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