CN110928064A - Display panel, preparation method thereof and display device - Google Patents

Display panel, preparation method thereof and display device Download PDF

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Publication number
CN110928064A
CN110928064A CN201911275183.7A CN201911275183A CN110928064A CN 110928064 A CN110928064 A CN 110928064A CN 201911275183 A CN201911275183 A CN 201911275183A CN 110928064 A CN110928064 A CN 110928064A
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Prior art keywords
substrate
spacer
display panel
conversion structure
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CN201911275183.7A
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Chinese (zh)
Inventor
谢昌翰
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
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Priority to CN201911275183.7A priority Critical patent/CN110928064A/en
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    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13394—Gaskets; Spacers; Sealing of cells spacers regularly patterned on the cell subtrate, e.g. walls, pillars
    • 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
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13396—Spacers having different sizes
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties

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

Abstract

The invention provides a display panel, a preparation method thereof and a display device, belongs to the technical field of display, and can solve the problem that the box thickness of the existing flexible display panel is not easy to maintain. The display panel of the present invention includes: the first substrate and the second substrate are oppositely arranged, and the spacer is arranged on one side of the first substrate close to the second substrate; the spacer includes: the height of the first spacer is smaller than that of the second spacer; the display panel further comprises a bonding structure, wherein the bonding structure is positioned on one side, close to the second substrate, of the first spacer and is used for bonding the first spacer with the second substrate.

Description

Display panel, preparation method thereof and display device
Technical Field
The invention belongs to the technical field of display, and particularly relates to a display panel, a preparation method of the display panel and a display device.
Background
The flexible display panel mainly comprises a flexible OLED display panel and a flexible liquid crystal display panel. Similar to a common rigid display panel, a flexible liquid crystal display panel generally includes an array substrate and a color film substrate which are oppositely disposed, and a liquid crystal layer, a spacer and other structures which are disposed between the array substrate and the color film substrate. Wherein the spacer is used for maintaining the box thickness of the display panel.
The inventor finds that the existing flexible display panel has at least the following problems: the existing flexible display panel is easy to slide relatively between the array substrate and the color film substrate in the preparation process and the use process, and the box thickness of the flexible display panel is not easy to maintain.
Disclosure of Invention
The present invention is directed to solve at least one of the problems of the prior art and to provide a display panel having a uniform cell thickness.
The technical scheme adopted for solving the technical problem is that the display panel comprises a first substrate, a second substrate and a spacer, wherein the first substrate and the second substrate are oppositely arranged, and the spacer is arranged on one side of the first substrate, which is close to the second substrate; the spacer includes: the height of the first spacer is smaller than that of the second spacer;
the display panel board further comprises a bonding structure, wherein the bonding structure is positioned on one side, close to the second substrate, of the first spacer and used for bonding the first spacer with the second substrate.
Preferably, the material of the bonding structure comprises at least a photopolymer monomer; the photopolymer monomer is capable of curing under light conditions.
Preferably, the first spacer has a first surface adjacent to the first substrate, a second surface adjacent to the second substrate, and a side surface connecting the first surface and the second surface;
the area of the second surface is larger than the area of the side surface.
Preferably, the display panel includes a liquid crystal display panel.
The technical scheme adopted for solving the technical problem is that the display panel comprises a first substrate, a second substrate and a spacer, wherein the first substrate and the second substrate are oppositely arranged, and the spacer is arranged on one side of the first substrate, which is close to the second substrate; a photo-thermal conversion structure is arranged on the second substrate and corresponds to at least part of the shock insulator; the photothermal conversion structure is capable of converting light energy of a predetermined light wave into heat energy;
one surface of the spacer, which is close to the second substrate, can be melted under the action of the heat energy converted by the photo-thermal conversion structure correspondingly, and is bonded with the photo-thermal conversion structure after being solidified.
Preferably, the material of the photothermal conversion structure includes a metal;
the predetermined light waves include pulsed light waves.
The technical scheme adopted for solving the technical problem of the invention is a display device which comprises any one of the display panels.
The technical scheme adopted for solving the technical problem of the invention is a preparation method of a display panel, which comprises the following steps:
providing a first substrate, and forming a spacer on the first substrate; the spacer includes: the height of the first spacer is smaller than that of the second spacer;
providing a second substrate disposed opposite the first substrate;
and aligning the first substrate and the second substrate to form a box, and forming an adhesive structure on one side of the first spacer close to the second substrate, wherein the adhesive structure is used for adhering the first spacer and the second substrate.
Preferably, after the first substrate and the second substrate are aligned with each other, a liquid crystal and a photopolymer monomer are filled between the first substrate and the second substrate;
the step of forming the bonded structure comprises: and illuminating the position corresponding to the first spacer to enable the photopolymer monomer corresponding to the position of the first spacer to be cured and then fixedly connecting the first spacer and the second substrate.
The technical scheme adopted for solving the technical problem of the invention is a preparation method of a display panel, which comprises the following steps: providing a first substrate, and forming a spacer on the first substrate;
providing a second substrate disposed opposite the first substrate; a photothermal conversion structure is arranged at the position of the second substrate corresponding to at least part of the spacer; the photothermal conversion structure is capable of converting light energy of a predetermined light wave into heat energy;
and the first substrate and the second substrate are aligned to the box, the photo-thermal conversion structure is irradiated by the preset light waves, so that one surface of the spacer, which is close to the second substrate, is melted under the action of the heat energy converted by the photo-thermal conversion structure, and is fixedly connected with the photo-thermal conversion structure after being solidified.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 3 is a schematic view of forming a first substrate in the manufacturing method provided in embodiment 4 of the present invention;
fig. 4 is a schematic view of forming a second substrate in the manufacturing method provided in embodiment 4 of the present invention;
FIG. 5 is a schematic view of the manufacturing method of the present invention provided in example 4 after the cartridge process;
FIG. 6 is a schematic view of the formation of a fixed structure in the manufacturing method provided in example 4 of the present invention;
fig. 7 is a schematic view of forming a first substrate in the manufacturing method provided in embodiment 5 of the present invention;
fig. 8 is a schematic view of forming a second substrate in the manufacturing method provided in embodiment 5 of the present invention;
fig. 9 is a schematic view of the completed pair of cartridges in the manufacturing method provided in example 5 of the present invention;
wherein the reference numerals are: 1. a first substrate; 2. a second substrate; 3. a spacer; 31. a first spacer; 32. a second spacer; 41. a bonding structure; 42. a photothermal conversion structure; 5. a liquid crystal; 6. sealing the frame glue; 7. a base substrate.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In a conventional display panel, particularly a flexible liquid crystal display panel, spacers are usually disposed on only one of a first substrate and a second substrate, and the other substrate is supported by the spacers, so that the spacers maintain the cell thickness of the display panel. However, since the first substrate and the second substrate are flexible structures, the shape and structure of the first substrate and the second substrate are more easily changed than those of a hard substrate. Therefore, in the preparation process and the use process of the flexible display panel, relative sliding is easy to occur between the first substrate and the second substrate, and the box thickness is not easy to maintain.
The display panel provided by the application comprises: the first substrate and the second substrate are arranged oppositely, and the spacer is arranged on one side of the first substrate close to the second substrate. Wherein at least part of the spacer is directly or indirectly bonded with the second substrate. By bonding at least part of the spacer with the second substrate, the spacer and the second substrate can be kept relatively fixed, and relative sliding between the spacer and the second substrate is avoided. Meanwhile, the first substrate and the second substrate are relatively fixed, so that the offset of the spacers is small in the deformation process and the like of the display panel, excessive flowing of liquid crystal can be effectively inhibited, and uneven box thickness caused by the fact that the liquid crystal is gathered at a certain position is avoided.
The display panel provided by the invention is suitable for a liquid crystal display panel, and is particularly suitable for a flexible liquid crystal display panel. One of the first substrate and the second substrate may be an array substrate, and the other may be a cassette substrate. Specifically, the cassette alignment substrate may be a color film substrate. When the display panel is a liquid crystal display panel, the substrates of the first substrate and the second substrate may be flexible substrates, and may be made of PI (polyimide) or other materials.
In the display panel that this application provided, spacer and second base plate can realize bonding, or fixed connection through multiple mode, specifically explain through several following embodiments in this application:
example 1:
as shown in fig. 1, the present embodiment provides a display panel, including: relative first base plate 1 and the second base plate 2 that sets up, set up in first base plate 1 and be close to spacer 3 of second base plate 2 one side wherein, spacer 3 includes: the first shock insulator 31 and the second shock insulator 32, wherein the height of the first shock insulator 31 is smaller than that of the second shock insulator 32; the bonding structure 4 is located on one side of the first spacer 31 close to the second substrate 2, and the first spacer 31 is bonded to the second substrate 2 through the bonding structure 4.
As shown in fig. 1, in the present embodiment, spacers 3 with different heights may be formed on the first substrate 1, the adhesive structures 4 may be formed above the spacers 3 with a relatively lower height (i.e., the first spacers 31), and the sum of the heights of the first spacers 31 and the adhesive structures 4 is substantially the same as the height of the second spacers 32.
The material of the adhesive structure 4 may be a light curable material or a heat curable material. Preferably, the material of the adhesive structure 4 comprises at least a photopolymer monomer; the photopolymer monomer is capable of curing under light conditions.
That is, in the display panel provided in the present embodiment, the spacer 3 and the second substrate 2 can be bonded using the property that the photopolymer monomer can be cured under the illumination condition. Specifically, in the preparation of the display panel, the first substrate 1 and the second substrate 2 on which the spacers 3 having different heights are formed may be aligned, and the liquid crystal 5 and the photopolymer monomer may be filled between the first substrate 1 and the second substrate 2. It can be understood that, after the first substrate 1 and the second substrate 2 are assembled into a box, due to the difference in height between the first spacers 31 and the second spacers 32, a space is formed between the first spacers 31 and the second substrate 2 having a lower height and supported by the second spacers 32 having a relatively higher height, and the space is filled with the liquid crystal 5 and the photopolymer monomer. After the first substrate 1 and the second substrate 2 are aligned to each other, light may be applied to the position corresponding to the first spacer 31 (i.e., the space between the first spacer 31 and the second substrate 2), so that the photopolymer monomer is cured at the position corresponding to the first spacer 31, thereby bonding the first spacer 31 and the second substrate 2.
Further preferably, the first spacer 31 has a first surface adjacent to the first substrate 1, a second surface adjacent to the second substrate 2, and a side surface connecting the first surface and the second surface; the area of the second surface is larger than the area of the side surface.
In this embodiment, the first spacer 31 is formed on the first substrate 1, and the first surface of the first spacer 31 is actually the contact surface with the first substrate 1; the second surface is the surface close to the second substrate 2, i.e. the surface in contact with the adhesive structure 4, or the surface for bonding with the adhesive structure 4. When the material of the bonding structure is a photopolymer monomer, the second surface is also the surface for forming the bonding structure. Since the adhesive structure 4 is formed by photo-curing the photopolymer monomer, the photopolymer monomer is cured and deposited on the surface of the carrier. In this embodiment, the bonding structure 4 is preferably formed between the second surface of the first spacer 31 and the second substrate 2 under light irradiation conditions to ensure the fixing strength of the first spacer 31 and the second substrate 2, and to prevent the photopolymer from being cured on the side surface of the first spacer 31 as much as possible, so as to avoid affecting the normal display of the display panel. Therefore, it is preferable that the area of the second surface of the first spacer 31 is larger than the area of the side surface, so as to ensure the fixing strength of the first spacer 31 and the second substrate 2 without affecting the normal display of the display panel.
Preferably, the shape of the first spacer 31 in the present embodiment may include a cylindrical shape. Specifically, when the first spacer 31 is cylindrical in shape, it preferably has a radius of more than 5 micrometers (um) and a height of less than 30 micrometers (um).
It is understood that, in the present embodiment, when the material of the bonding structure 4 is a thermosetting material, the light irradiation process may be replaced by a heating process to form the bonding structure 4, and details thereof are not described herein.
In this embodiment, spacers 3 with different heights may be disposed between the first substrate 1 and the second substrate 2, so that the spacers 3 with different heights can make the display panel of the liquid crystal display 5 more suitable for receiving different external pressures.
It can be understood that, due to the different heights of the spacers 3, only the relatively high spacers 3 (i.e., the first spacers 31) need to be bonded to the second substrate 2 by the bonding structures 4.
Example 2:
as shown in fig. 2, the present embodiment provides a display panel, including: the display device comprises a first substrate 1, a second substrate 2 and a spacer 3, wherein the first substrate 1 and the second substrate 2 are arranged oppositely, and the spacer 3 is arranged on one side of the first substrate 1 close to the second substrate 2. Similarly to embodiment 1, in this embodiment, the spacer is fixedly connected to the second substrate 1. Specifically, the difference from embodiment 1 is that the spacer 3 and the second substrate 2 are connected by the photothermal conversion structure 42 in this embodiment. Specifically, in the present embodiment, the photothermal conversion structure 42 corresponds to the photothermal conversion structure 42 disposed at least in part of the spacer 3. The spacer 3 may be fixedly coupled to the second substrate 2 through the corresponding photothermal conversion structure 42.
As shown in fig. 2, in the display panel of the present embodiment, the photothermal conversion structure 42 is formed on the second substrate 2 and is disposed corresponding to at least a portion of the spacer 3; the photothermal conversion structure 42 is capable of converting light energy of a predetermined light wave into thermal energy; one surface of the spacer 3 adjacent to the second substrate 2 can be melted by the heat energy converted by the corresponding photothermal conversion structure 42, and is fixedly connected to the photothermal conversion structure 42 after being solidified.
Specifically, in this embodiment, the photothermal conversion structure 42 may be formed by using a special material (a material capable of converting light energy of a predetermined light wave into heat energy) based on a photon sintering technology, so that the photothermal conversion structure 42 serves as a light absorption layer, and when the photothermal conversion structure 42 receives the predetermined light wave, a high temperature may be generated on the surface thereof, so as to heat the spacer 3, so that one surface of the spacer 3 close to the second substrate 2 (i.e., one surface close to the photothermal conversion structure 42) is melted, and then the spacer 3 is bonded to the photothermal conversion structure 42 after subsequent cooling, so as to fixedly connect the spacer 3 and the second substrate 2.
Specifically, when the display panel of the embodiment is manufactured, the first substrate 1 on which the spacer 3 is formed and the second substrate 2 on which the photo-thermal conversion structure 42 is formed may be aligned with each other, and then light of a predetermined light wave is applied to a position corresponding to the photo-thermal conversion structure 42, so that the photo-thermal conversion structure 42 converts light energy of the predetermined light wave into heat energy, and thus one surface of the spacer 3 close to the second substrate 2 is melted under the effect of the converted heat energy converted by the photo-thermal conversion structure 42, and is then fixedly connected to the photo-thermal conversion structure 42 after being solidified, and finally, the spacer 3 and the second substrate 2 are fixedly connected.
Preferably, in the present embodiment, the material of the photothermal conversion structure 42 includes a metal. The metal has good photo-thermal conversion performance. Further preferably, the material of the photothermal conversion structure 42 may be tungsten. The predetermined light wave may include a pulse light wave, and particularly may be a high-energy pulse light wave, so as to be converted into sufficient heat energy by the photo-thermal conversion structure 42, thereby ensuring that the side of the spacer 3 close to the second substrate 2 can be melted, and thus ensuring the adhesion of the spacer 3 and the photo-thermal conversion structure 42.
It should be noted that, unlike the display panel provided in embodiment 1, the height of the spacers 3 is not particularly limited in the display panel in this embodiment, and the height difference between different spacers 3 is not limited. The photothermal conversion structure 42 may be disposed at a position of the second substrate 2 corresponding to the spacer 3 to be bonded to the second substrate 2 according to actual requirements.
Example 3:
the present embodiment provides a display device including any one of the display panels provided in embodiment 1 or 2.
The display device provided in this embodiment may preferably be any product or component with a display function, such as electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, and a navigator. Since the display device in this embodiment includes any one of the display panels provided in 1 to 3, the box thickness thereof is not easily changed, the display effect is good, and the display life is longer.
Example 4:
as shown in fig. 3 to 5, this embodiment provides a method for manufacturing a display panel, which can be used to manufacture the display panel provided in embodiment 1. In order to more clearly and clearly explain the preparation method provided in this embodiment, the following description is provided for preparing a flexible liquid crystal display panel. The preparation method comprises the following steps:
s11, as shown in fig. 3, a first substrate 1 is provided, and spacers 3 are formed on the first substrate 1.
Wherein the first substrate 1 comprises a flexible base. The flexible substrate can be provided with devices such as a thin film transistor and a signal wire.
It can be understood that, since the first substrate 1 is a flexible substrate, in the process of preparing the first substrate 1, a flexible substrate is formed on the substrate base 7, then the required structures such as a film layer, a display device, and a spacer 3 are sequentially formed, and after the first substrate 1 and the second substrate 2 are aligned, the substrate base 7 and the flexible substrate are peeled off.
In this embodiment, the spacer 3 includes: the first shock insulator 31 and the second shock insulator 32, the height of the first shock insulator 31 is smaller than that of the second shock insulator 32.
S12, providing a second substrate 2 disposed opposite the first substrate 1.
Preferably, the second substrate 2 also comprises a flexible base. The flexible substrate can be provided with structures such as a color film layer.
It can be understood that, since the second substrate 2 is a flexible substrate, in the process of preparing the second substrate 2, as shown in fig. 4, a flexible substrate is formed on the substrate 7, and then a desired structure is formed in sequence, and after the substrate 7 is aligned with the first substrate 1, the flexible substrate is peeled off.
It should be noted that, the steps S11 and S12 are two independent steps, and they do not have to be in sequence, that is, the first substrate 1 is prepared first, and then the second substrate 2 is prepared, or the second substrate 2 is prepared first, and then the first substrate 1 is prepared, or both of them are prepared at the same time, which is not limited in this embodiment.
S13, as shown in fig. 5, the first substrate 1 and the second substrate 2 are aligned and stacked.
Specifically, in this step, the first substrate 1 and the second substrate 2 may be aligned by a cell alignment process, the liquid crystal 5 and the photopolymer monomer are filled between the first substrate 1 and the second substrate 2, and then the frame sealing adhesive 6 is filled in the edge region between the first substrate 1 and the second substrate 2. The box aligning process of the display substrate is a mature technology in the prior art, and reference may be made to related data, which is not described herein again in this embodiment.
S14, as shown in fig. 6, forming an adhesive structure on the first spacer 31 near the second substrate, the adhesive structure being used to adhere the first spacer to the second substrate.
Preferably, the step may specifically include: the position corresponding to the first spacer 31 is irradiated with light, and the photopolymer monomer corresponding to the position of the first spacer 31 is cured to fixedly connect the first spacer 31 and the second substrate 2.
It can be understood that, because the spacers 3 in this embodiment have different heights, when the first substrate 1 and the second substrate 2 complete the cell, the second spacer 32 with a relatively high height mainly supports, and a certain space exists between the surface of the first spacer 31 close to the second substrate 2 and the second substrate 2, and the space is filled with the liquid crystal 5 and the photopolymer monomer. After illuminating the position of the substrate behind the cassette corresponding to the first spacer 31, the photopolymer monomer is cured to form the bonding structure 41, and at the same time, the first spacer 31 is bonded to the second substrate 2.
Note that since the photopolymer monomers and the liquid crystal 5 are doped together, the liquid crystal 5 may be doped in the formed bonding structure 41 during the curing of the photopolymer monomers.
Preferably, in this embodiment, after the bonding structure 41 is formed, steps of peeling the substrate base 7 from the flexible base, attaching the support film, and the like may be further included to finally form the flexible display panel, which are common steps in the art and are not described herein again.
Example 5:
as shown in fig. 7 to 9, this embodiment provides a method for manufacturing a display panel, which can be used to manufacture the display panel provided in embodiment 2. In order to more clearly and clearly illustrate the preparation method provided in the examples, the following description is provided for preparing a flexible display panel. The preparation method comprises the following steps:
s21, as shown in fig. 7, a first substrate 1 is provided, and spacers 3 are formed on the first substrate 1.
Similarly as in embodiment 4, the first substrate 1 includes a flexible base. The flexible substrate can be provided with devices such as a thin film transistor and a signal wire.
Unlike embodiment 4, the height of the spacers 3 in this embodiment does not need to be particularly different from each other, and the height of the spacers 3 may be the same or different.
S22, as shown in fig. 8, a second substrate 2 is provided to be opposed to the first substrate 1.
Wherein, a photo-thermal conversion structure 42 is formed on the second substrate 2 at a position corresponding to at least a portion of the spacer 3, and the photo-thermal conversion structure 42 can convert light energy of a predetermined light wave into heat energy.
Among them, the material of the preferred photothermal conversion structure 42 includes a metal.
Specifically, in this step, the photothermal conversion structure 42 may be formed on the second substrate 2 at a position corresponding to at least a portion of the spacer 3 by deposition, exposure, development, etching, and the like. The photothermal conversion structure 42 may serve as the photothermal conversion structure 42 for converting light energy of a predetermined light wave into heat energy in a subsequent step.
It should be noted that, similar to embodiment 4, step S21 and step S22 are two independent steps, and they are not in sequence, that is, the first substrate 1 is prepared first, and then the second substrate 2 is prepared, or the second substrate 2 is prepared first, and then the first substrate 1 is prepared, or both are prepared at the same time, which is not limited in this embodiment.
S23, the first substrate 1 and the second substrate 2 are set in a pair, and the liquid crystal 5 is filled between the first substrate 1 and the second substrate 2.
This step can refer to step S13 in embodiment 4, and is not described herein again.
S24, as shown in fig. 9, the photothermal conversion structure 42 is irradiated with light of a predetermined light wave, so that the side of the spacer 3 adjacent to the second substrate 2 is melted by the heat energy converted by the photothermal conversion structure 42, and is fixedly connected to the photothermal conversion structure 42 after being solidified.
In this step, the light of the predetermined light wave may be applied to the position corresponding to the photothermal conversion structure 42, so that the photothermal conversion structure 42 converts the light energy of the predetermined light wave into heat energy, so that the surface of the spacer 3 corresponding to the photothermal conversion structure 42, which is close to the second substrate 2, is melted, and then is fixedly connected with the photothermal conversion structure 42 after subsequent solidification, and finally, the fixed connection between the spacer 3 and the second substrate 2 is realized.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (10)

1. A display panel is characterized by comprising a first substrate, a second substrate and a spacer, wherein the first substrate and the second substrate are arranged oppositely, and the spacer is arranged on one side of the first substrate, which is close to the second substrate; the spacer includes: the height of the first spacer is smaller than that of the second spacer;
the display panel further comprises a bonding structure, wherein the bonding structure is positioned on one side, close to the second substrate, of the first spacer and is used for bonding the first spacer with the second substrate.
2. The display panel of claim 1, wherein the material of the adhesive structure comprises at least a photopolymer monomer; the photopolymer monomer is capable of curing under light conditions.
3. The display panel according to claim 1, wherein the first spacer has a first surface adjacent to the first substrate, a second surface adjacent to the second substrate, and a side surface connecting the first surface and the second surface;
the area of the second surface is larger than the area of the side surface.
4. The display panel according to claim 1, wherein the display panel comprises a liquid crystal display panel.
5. A display panel, comprising: the device comprises a first substrate, a second substrate and a spacer, wherein the first substrate and the second substrate are oppositely arranged, and the spacer is arranged on one side of the first substrate close to the second substrate;
a photo-thermal conversion structure is arranged on the second substrate and corresponds to at least part of the shock insulator; the photothermal conversion structure is capable of converting light energy of a predetermined light wave into heat energy;
the spacer is close to one side of the second substrate can be melted under the action of heat energy converted by the corresponding photo-thermal conversion structure, and is fixedly connected with the photo-thermal conversion structure after being solidified.
6. The display panel according to claim 5, wherein the material of the photothermal conversion structure comprises a metal;
the predetermined light waves include pulsed light waves.
7. A display device characterized by comprising the display panel according to any one of claims 1 to 6.
8. A method for manufacturing a display panel, comprising:
providing a first substrate, and forming a spacer on the first substrate; the spacer includes: the height of the first spacer is smaller than that of the second spacer;
providing a second substrate disposed opposite the first substrate;
and aligning the first substrate and the second substrate to form a box, and forming an adhesive structure on one side of the first spacer close to the second substrate, wherein the adhesive structure is used for adhering the first spacer and the second substrate.
9. The manufacturing method of a display panel according to claim 8, wherein after the first substrate and the second substrate are aligned in a cell, a liquid crystal and a photopolymer monomer are filled between the first substrate and the second substrate;
the step of forming the bonded structure includes: and irradiating the position corresponding to the first spacer with light, so that the photopolymer monomer corresponding to the position of the first spacer is cured, and then the first spacer is bonded with the second substrate.
10. A method for manufacturing a display panel, comprising:
providing a first substrate, and forming a spacer on the first substrate;
providing a second substrate disposed opposite the first substrate; a photothermal conversion structure is arranged at the position of the second substrate corresponding to at least part of the spacer; the photothermal conversion structure is capable of converting light energy of a predetermined light wave into heat energy;
and the first substrate and the second substrate are aligned with each other, the fixing structure is irradiated by the preset light wave, so that one surface of the spacer, which is close to the second substrate, is melted under the action of the heat energy converted by the fixing structure, and the spacer is fixedly connected with the fixing structure after being solidified.
CN201911275183.7A 2019-12-12 2019-12-12 Display panel, preparation method thereof and display device Pending CN110928064A (en)

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CN102929032A (en) * 2012-11-05 2013-02-13 京东方科技集团股份有限公司 Flexible liquid crystal lens and three-dimensional (3D) glasses
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CN104749827A (en) * 2015-04-22 2015-07-01 京东方科技集团股份有限公司 Liquid crystal display panel and manufacturing method thereof
CN105182629A (en) * 2015-11-03 2015-12-23 京东方科技集团股份有限公司 Display panel, preparation method thereof and display device
CN105629594A (en) * 2016-04-07 2016-06-01 京东方科技集团股份有限公司 Display panel and box alignment method thereof as well as display device
CN105694440A (en) * 2016-04-20 2016-06-22 中国科学院宁波材料技术与工程研究所 Welding method of thermoplastic composites and doped resin used in welding method

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Publication number Priority date Publication date Assignee Title
JP2004029487A (en) * 2002-06-27 2004-01-29 Sharp Corp Curved surface-like liquid crystal display
CN101348696A (en) * 2007-07-20 2009-01-21 三星电子株式会社 Adhesion composition, making method of adhesion composition, display device and making method of display device
CN102929032A (en) * 2012-11-05 2013-02-13 京东方科技集团股份有限公司 Flexible liquid crystal lens and three-dimensional (3D) glasses
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