CN114815403B - Display panel and preparation method and repair method thereof - Google Patents
Display panel and preparation method and repair method thereof Download PDFInfo
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- CN114815403B CN114815403B CN202210358015.XA CN202210358015A CN114815403B CN 114815403 B CN114815403 B CN 114815403B CN 202210358015 A CN202210358015 A CN 202210358015A CN 114815403 B CN114815403 B CN 114815403B
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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
- G02F1/13398—Spacer materials; Spacer properties
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Abstract
本申请提供一种显示面板及其制备方法、修复方法，显示面板包括相对设置的第一基板和第二基板，以及设置于第一基板和第二基板之间的框胶，框胶与第一基板、第二基板形成一容置空间；显示面板还包括设置于容置空间内的隔垫物和液晶分子，隔垫物具有第一状态和第二状态，在第一状态下，隔垫物在第一基板上的正投影面积为a；在第二状态下，隔垫物在第一基板上的正投影面积为b；b＞a＞0。本申请通过在显示面板内设置能够在第二状态下于水平方向上发生膨胀的隔垫物，并通过隔垫物的膨胀，挤压液晶分子移动，消除显示面板中存在的气泡，解决气泡影响显示画质的问题，提高显示面板的显示质量和良率，降低显示面板的修复难度。
The present application provides a display panel, a preparation method and a repair method thereof. The display panel includes a first substrate and a second substrate arranged oppositely, and a sealant disposed between the first substrate and the second substrate. The sealant and the first substrate are The substrate and the second substrate form an accommodation space; the display panel also includes spacers and liquid crystal molecules arranged in the accommodation space. The spacers have a first state and a second state. In the first state, the spacers The orthographic projection area on the first substrate is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; b>a>0. This application provides a spacer that can expand in the horizontal direction in the second state in the display panel, and through the expansion of the spacer, the liquid crystal molecules are squeezed to move, thereby eliminating the bubbles existing in the display panel and solving the problem of bubbles. Display image quality problems, improve the display quality and yield of the display panel, and reduce the difficulty of repairing the display panel.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, a preparation method and a repair method thereof.
Background
Display is a process of converting an electric signal (data information) into visible light (visual information), a flat panel display (Flat Panel Display, FPD) is a currently mainstream display device, and a liquid crystal display (Liquid Crystal Display, LCD) is a popular type of display product that has been developed earlier in FPDs.
A liquid crystal display generally includes a backlight module and a display panel, which generally includes a liquid crystal cell structure composed of two opposite substrates and a liquid crystal layer between the substrates. Along with the increasing size of display panels, the requirements of users on the chemical resistance and reliability of the display panels are also increasing, but due to the limitation of materials or structural design, the adhesive strength between the film layers of the display panels often cannot meet the design requirements, and further the risk of peeling (peeling) between the film layers at the frame of the display panels is increasing. When peeling occurs to a certain extent between the film layers, bubbles (bubbles) are easily generated in the liquid crystal box, the reliability of the display panel can be greatly reduced by the bubbles, the display quality is seriously affected, and the display panel with the bubbles is high in repair difficulty and generally can only be scrapped, so that the production yield of the display panel is reduced, the manufacturing cost is increased, and the problem needs to be solved.
Disclosure of Invention
The application provides a display panel, a preparation method and a repairing method thereof, which can effectively eliminate bubbles in the display panel, improve the display quality, increase the product yield, and have simple repairing mode and lower cost.
In order to achieve the above purpose, the display panel, the preparation method and the repairing method thereof adopt the following technical scheme.
In one aspect, the application provides a display panel, which comprises a first substrate, a second substrate and frame glue, wherein the first substrate and the second substrate are oppositely arranged, the frame glue is arranged between the first substrate and the second substrate, and the frame glue, the first substrate and the second substrate form a containing space;
the display panel further comprises a spacer and liquid crystal molecules, wherein the spacer is arranged in the accommodating space and has a first state and a second state, and the orthographic projection area of the spacer on the first substrate in the first state is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; wherein b > a > 0.
Optionally, before ultraviolet irradiation treatment, the spacer is in the first state; after the ultraviolet irradiation treatment, the spacer is in the second state.
Optionally, the spacer comprises a substrate and a dopant mixed in the substrate, wherein the dopant is capable of generating volume expansion after the ultraviolet irradiation treatment.
Optionally, the material of the substrate is photoresist, and the material of the dopant is an elastic hydrogen bond crosslinked organic framework.
Optionally, in each spacer, the mass ratio of the dopant to the substrate is 1:1000-1:10.
Optionally, the frame glue has the first state and the second state, and in the first state, the orthographic projection area of the frame glue on the first substrate is c; in the second state, the orthographic projection area of the frame glue on the first substrate is d; wherein d > c > 0.
In another aspect, the present application also provides a method for manufacturing a display panel, the display panel including: the preparation method of the spacer, the display panel comprises the following steps:
s01, doping and mixing a doping material made of an elastic hydrogen bond crosslinking organic framework and a base material made of photoresist according to a preset proportion to form a mixture;
s02, providing a first substrate, and forming a patterned supporting layer on the first substrate by taking the mixture as a raw material, wherein the supporting layer comprises a plurality of spacer objects arranged at intervals;
s03, providing a second substrate, and assembling the first substrate provided with the spacer and the second substrate into a box through frame glue.
Optionally, in the step S01, the preset ratio is that the mass ratio of the dopant to the substrate is 1:1000-1:10.
In still another aspect, the present application further provides a method for repairing a display panel, including any one of the display panels described above, the display panel including a spacer in a first state, the method for repairing a display panel including the steps of:
performing ultraviolet irradiation treatment on the spacer in the display panel to enable the spacer to be converted from a first state to a second state, wherein in the first state, the orthographic projection area of the spacer on the first substrate is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; wherein b > a > 0.
Optionally, the wavelength of ultraviolet light adopted by the ultraviolet light irradiation treatment is 150-300 nm, and the duration of the ultraviolet light irradiation treatment is 30-600 seconds.
According to the application, the spacer which can expand in the horizontal direction in the second state is arranged in the display panel, and the liquid crystal molecules are extruded to move through the expansion of the spacer, so that the bubbles in the display panel are eliminated, the problem that the bubbles affect the display image quality is solved, the display quality and the yield of the display panel are improved, and the repair difficulty of the display panel is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application in a first state;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present application in a second state;
fig. 3 is a flowchart of a method for manufacturing a display panel according to a first embodiment of the present application;
fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present application when a sealant is in a first state;
fig. 5 is a schematic structural diagram of a display panel according to a second embodiment of the present application when a sealant is in a second state;
fig. 6 is a method for preparing a sealant in a display panel according to a second embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application. In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower positions of the device in actual use or operation, and specifically the orientation of the drawing figures; while "inner" and "outer" are for the outline of the device.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials. The following detailed description is given, respectively, to the description of the following embodiments, but the description of the embodiments is not to be taken as limiting the preferred embodiments.
Aiming at the problems that bubbles in the display panel affect the display quality, the product yield is reduced and the bubbles are difficult to eliminate in the prior art, the application provides the display panel, which can repair the display panel in a simpler mode when the bubble problem occurs, thereby eliminating the bubbles, improving the display quality of the display panel and improving the production yield of the display panel.
Example 1
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present application in a first state; fig. 2 is a schematic structural diagram of a spacer in a display panel according to an embodiment of the application in a second state. As shown in fig. 1 and 2, the present embodiment provides a display panel, for example, a liquid crystal display panel, where the display panel includes a first substrate 11 and a second substrate 12 disposed opposite to each other, and a sealant 13 disposed between the first substrate 11 and the second substrate 12, and the sealant 13 and the first substrate 11 and the second substrate 12 form a containing space 100; the display panel further includes a spacer 14 and liquid crystal molecules 15 disposed in the accommodating space 100, where the spacer 14 has a first state and a second state, and in the first state, a front projection area of the spacer 14 on the first substrate 11 is a; in the second state, the orthographic projection area of the spacer 14 on the first substrate 11 is b; wherein b > a > 0.
In this embodiment, the display panel is set to be horizontally placed on a horizontal plane, that is, in the display panel provided by the present application, when the spacer 14 is switched from the first state to the second state, the spacer 14 can expand in the horizontal direction (including the length direction and the width direction), so as to increase the orthographic projection area of the spacer 14 on the first substrate 11. When air bubbles appear in the display panel, the spacer 14 is switched from the first state to the second state, so that the spacer 14 can be expanded in the horizontal direction, the volume ratio of the spacer 14 in the accommodating space 100 is increased, and the liquid crystal molecules 15 are extruded, so that the liquid crystal molecules 15 flow and are filled in the area where the air bubbles exist, and the effects of eliminating the air bubbles and improving the display quality are achieved.
In this embodiment, the spacer 14 may be disposed on one of the first substrate 11 or the second substrate 12. Preferably, the first substrate 11 is a Color Filter (Color Filter) substrate, and the spacer 14 is disposed on the first substrate 11; the second substrate 12 is an Array (Array) substrate, and a thin film transistor Array is disposed on the Array substrate.
In this embodiment, before the ultraviolet irradiation treatment, the spacer 14 is in the first state; after the ultraviolet irradiation treatment, the spacer 14 is in the second state. That is, the spacer 14 can expand in the length and width directions thereof under the irradiation of ultraviolet light, and increases the volume ratio thereof in the accommodating space 100, thereby squeezing the liquid crystal molecules 15 and eliminating bubbles in the accommodating space 100.
In this embodiment, the spacer 14 includes a substrate and a dopant mixed in the substrate, wherein the dopant is capable of generating volume expansion after the ultraviolet irradiation treatment. The application enables the spacer 14 to have the performance of morphological change while keeping the original function of supporting the first substrate 11 and the second substrate 12 by doping the substrate with the dopant capable of volume expansion after ultraviolet irradiation treatment.
In this embodiment, the length of the spacer 14 is 5-40 μm, the width of the spacer 14 is 5-40 μm, the height of the spacer 14 is 1-5 μm, the length of the spacer 14 is 5-40 times the height of the spacer 14, and the width of the spacer 14 is 5-40 times the height of the spacer 14. Since the spacers 14 have a "short" structure, when the dopant undergoes volumetric expansion after the ultraviolet irradiation treatment, the spacers 14 expand substantially only in the length and width directions, with little or no more than negligible expansion in the height direction.
In this embodiment, the expansion ratio of the spacer 14 in the length direction is 0-30%, the expansion ratio of the spacer 14 in the width direction is 0-30%, and the specific expansion ratio can be adjusted by adaptively selecting appropriate uv light treatment conditions according to the size of bubbles in the display panel when repairing the display panel.
In this embodiment, the substrate is made of photoresist. The photoresist is in a liquid state sensitive to light in an initial state, so that the dopant can be fully doped and mixed with the photoresist in the initial state to form a mixture composed of the dopant and the photoresist, and the spacer 14 prepared from the mixture in the subsequent step has excellent supporting performance and good expansion effect.
In this embodiment, the dopant is mixed in the substrate, and the material of the dopant is an elastic hydrogen bond crosslinked organic frameworks (HcOFs). Specifically, hcOFs are polymers which form a rigid structure through-H-bonds and linking groups before being subjected to ultraviolet irradiation treatment; when subjected to ultraviolet light, the rigid structure in HcOFs changes and the volume slightly increases. The HcOFs can change the volume of the spacer 14 without reducing the supporting performance of the spacer 14, and further can provide the spacer 14 with a function of eliminating bubbles in the display panel. Further, the supporting strength of the spacers 14 doped with HcOFs is greater than that of the spacers 14 formed by the substrate alone. Of course, the material of the dopant is not limited in the present application, and in other embodiments of the present application, the dopant may be other dopants that undergo volume change under other optical processing conditions.
In this embodiment, a plurality of spacers 14 are disposed in the accommodating space 100 at intervals, and each spacer 14 is provided with the dopant, which has the advantage that no matter where the display panel has a bubble problem at any position, the spacers 14 in the area near the bubble can be subjected to ultraviolet irradiation, so that bubbles can be accurately eliminated at fixed points. To achieve a more excellent expansion effect, the mass ratio of the dopant to the substrate in each spacer 14 is 1:1000 to 1:10.
On the other hand, the application also provides a preparation method of the display panel. Specifically, fig. 3 is a flowchart of a method for manufacturing a display panel according to a first embodiment of the present application, and with reference to fig. 1 and fig. 3, the display panel includes: the preparation method of the spacer 14, the display panel comprises the following steps:
s01, doping and mixing a doping material made of an elastic hydrogen bond crosslinking organic framework and a base material made of photoresist according to a preset proportion to form a mixture;
s02, providing a first substrate 11, and forming a patterned supporting layer on the first substrate 11 by taking the mixture as a raw material, wherein the supporting layer comprises a plurality of spacers 14 arranged at intervals.
S03, providing a second substrate 12, and assembling the first substrate 11 provided with the spacer 14 and the second substrate 12 into a box through the frame glue 13.
In the step S01, the preset ratio is that the mass ratio of the dopant to the substrate is 1:1000-1:10.
In the step S02, the first substrate 11 is, for example, a color film substrate, and the step of forming a patterned supporting layer on the first substrate 11 includes: the uniformly mixed mixture is coated on the first substrate 11, and sequentially subjected to exposure, development, and cleaning processes, thereby preparing the patterned support layer. Further, the spacers 14 in the supporting layer are distributed in the display area and the non-display area of the display panel.
In the step S03, the second substrate 12 is, for example, an array substrate, and the array substrate is provided with a thin film transistor array; the first substrate 11 and the second substrate 12 are connected and fixed by the frame glue 13 to form a sealed accommodating space 100.
In this embodiment, the display panel further includes liquid crystal molecules 15, and the drip irrigation process of the liquid crystal molecules 15 is performed in the step S02 or the step S03.
In this embodiment, the spacer 14 in the display panel prepared by the above-mentioned preparation method is not yet subjected to the ultraviolet irradiation treatment, so the spacer 14 still maintains the first state.
In still another aspect, the present application further provides a method for repairing a display panel, including any one of the display panels described above, the display panel including a spacer 14 in a first state, the method for repairing a display panel including the steps of:
performing ultraviolet irradiation treatment on the spacer 14 in the display panel to convert the spacer 14 from a first state to a second state, wherein in the first state, the orthographic projection area of the spacer 14 on the first substrate 11 is a; in the second state, the orthographic projection area of the spacer 14 on the first substrate 11 is b; wherein b > a > 0.
According to the repairing method of the display panel, as the spacer 14 with expansion performance is arranged in the display panel, in the repairing process, part or all of the spacer 14 can be controlled to expand in an ultraviolet irradiation treatment mode, so that the liquid crystal molecules 15 are extruded, the liquid crystal molecules 15 are enabled to move, bubbles in a bad display panel are eliminated, the problem that the bubbles affect the display image quality is solved, the display quality and the yield of the display panel are improved, and the repairing method has the characteristics of simple repairing process and low cost.
In this embodiment, the wavelength of the ultraviolet light used for the ultraviolet irradiation treatment is 150-300 nm, and the duration of the ultraviolet irradiation treatment is 30-600 seconds.
Example two
The second embodiment of the application provides a display panel, a preparation method and a repair method thereof. Fig. 4 is a schematic structural diagram of a display panel according to a second embodiment of the present application when a sealant is in a first state; fig. 5 is a schematic structural diagram of a second state of a sealant in a display panel according to a second embodiment of the present application. As shown in fig. 4 and fig. 5, the display panel includes a first substrate 11 and a second substrate 12 disposed opposite to each other, and a sealant 13 disposed between the first substrate 11 and the second substrate 12, where the sealant 13 and the first substrate 11 and the second substrate 12 form a receiving space 100; the display panel further includes a spacer 14 and liquid crystal molecules 15 disposed in the accommodating space 100, where the spacer 14 has a first state and a second state, and in the first state, a front projection area of the spacer 14 on the first substrate 11 is a; in the second state, the orthographic projection area of the spacer 14 on the first substrate 11 is b; wherein b > a > 0.
The display panel provided in the second embodiment of the present application is similar to the display panel in the first embodiment, and the second embodiment is not repeated for the same parts.
In the present embodiment, the sealant 13 has the first state and the second state, and in the first state, the orthographic projection area of the sealant 13 on the first substrate 11 is c; in the second state, the orthographic projection area of the frame glue 13 on the first substrate 11 is d; wherein d > c > 0. As mentioned above, due to the limitation of materials or structural design, the adhesive strength between the film layers of the display panel often cannot meet the design requirement, so that the risk of peeling between the film layers at the frame of the display panel is higher and higher, and when the frame glue 13 has peeling risk, the sealing performance of the display panel is greatly reduced, and the problem of water vapor invasion is easily caused.
In this embodiment, before the ultraviolet irradiation treatment, the frame glue 13 is in the first state; after the ultraviolet irradiation treatment, the sealant 13 is in the second state. That is, the sealant 13 can expand in the length and width directions under the effect of ultraviolet irradiation, so as to increase the contact area between the sealant and other film layers, and squeeze the film layer structure which is warped due to the peeling problem, so as to improve the adhesion between the sealant 13 and other film layers.
In this embodiment, the sealant 13 includes a sealant body and a dopant mixed in the sealant body, and the dopant can generate volume expansion after the ultraviolet irradiation treatment. Preferably, the dopants in the frame glue body are the same as the dopants in the spacer 14, and are all elastic hydrogen bond crosslinked organic frames, so that the materials can be simplified, the manufacturing process is unified, and the production and repair costs are reduced.
On the other hand, the present application also provides a method for manufacturing a display panel, which is similar to the method for manufacturing a display panel in the first embodiment, and includes steps S01 to S03 described in the first embodiment. Different, the preparation method of the display panel further includes a preparation method of the sealant 13 in the first state, fig. 6 is a preparation method of the sealant in the display panel provided in the second embodiment of the present application, and, with reference to fig. 4 and fig. 6, the preparation method of the sealant 13 includes the following steps:
s11, doping and mixing the elastic hydrogen bond crosslinked organic frame and the frame adhesive material according to a preset proportion to form a frame adhesive mixture;
s12, providing a first substrate 11 or a second substrate 12, and forming patterned frame glue 13 on the first substrate 11 or the second substrate 12 by taking the frame glue mixture as a raw material, wherein the frame glue 13 is in a shape of a Chinese character kou.
In still another aspect, the present application further provides a method for repairing a display panel, which is similar to the method for repairing a display panel in the first embodiment of the present application, except that the display panel further includes a sealant 13 in a first state, the method for repairing the display panel further includes a method for repairing the sealant 13 in the first state, and the method for repairing the sealant 13 includes the following steps:
performing ultraviolet irradiation treatment on the frame glue 13 in the display panel to enable the frame glue 13 to be converted into a second state from a first state, wherein in the first state, the orthographic projection area of the frame glue 13 on the first substrate 11 is c; in the second state, the orthographic projection area of the frame glue 13 on the first substrate 11 is d; wherein d > c > 0.
According to the repairing method of the display panel, the frame glue 13 with expansion performance is arranged in the display panel, so that in the repairing process, the frame glue 13 with peeling risk can be irradiated in an ultraviolet irradiation treatment mode, and therefore, part or all of the frame glue 13 is controlled to expand, so that the adjacent uneven film layers are transversely extruded, the contact area of the frame glue 13 and other film layers is increased, the adhesive force between the frame glue 13 and other film layers is improved, the sealing performance of the frame glue is guaranteed, and the repairing method has the characteristics of simple repairing process and low cost.
In summary, the present application provides a display panel, a method for manufacturing the same, and a method for repairing the same, wherein the display panel includes a first substrate and a second substrate disposed opposite to each other, and a sealant disposed between the first substrate and the second substrate, and the sealant, the first substrate and the second substrate form a receiving space; the display panel further comprises a spacer and liquid crystal molecules, wherein the spacer is arranged in the accommodating space and has a first state and a second state, and the orthographic projection area of the spacer on the first substrate in the first state is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; wherein b > a > 0. According to the application, the spacer which can expand in the horizontal direction in the second state is arranged in the display panel, and the liquid crystal molecules are extruded to move through the expansion of the spacer, so that the bubbles in the display panel are eliminated, the problem that the bubbles affect the display image quality is solved, the display quality and the yield of the display panel are improved, and the repair difficulty of the display panel is reduced.
The display panel, the preparation method and the repairing method thereof provided by the embodiment of the application are described in detail, and specific examples are applied to illustrate the principle and the implementation mode of the application, and the description of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (8)
1. The display panel is characterized by comprising a first substrate, a second substrate and frame glue, wherein the first substrate and the second substrate are oppositely arranged, the frame glue is arranged between the first substrate and the second substrate, and the frame glue, the first substrate and the second substrate form a containing space;
the display panel further comprises a spacer and liquid crystal molecules, wherein the spacer is arranged in the accommodating space and has a first state and a second state, and the orthographic projection area of the spacer on the first substrate in the first state is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; wherein b > a > 0;
the spacer comprises a base material and a dopant mixed in the base material, wherein the dopant can generate volume expansion after ultraviolet irradiation treatment, the length of the spacer is 5-40 times of the height of the spacer, the width of the spacer is 5-40 times of the height of the spacer, the expansion ratio of the spacer in the length direction is 0-30%, and the expansion ratio of the spacer in the width direction is 0-30%;
the frame glue also has a first state and a second state, and in the first state, the orthographic projection area of the frame glue on the first substrate is c; in a second state, the orthographic projection area of the frame glue on the first substrate is d; wherein d > c > 0;
before ultraviolet irradiation treatment, the frame glue is in a first state; after the ultraviolet irradiation treatment, the frame glue is in a second state.
2. The display panel of claim 1, wherein the spacer is in the first state before being subjected to ultraviolet irradiation; after the ultraviolet irradiation treatment, the spacer is in the second state.
3. The display panel of claim 2, wherein the substrate is a photoresist and the dopant is an elastic hydrogen bond crosslinked organic framework.
4. The display panel of claim 3, wherein a mass ratio of the dopant to the substrate in each spacer is 1:1000 to 1:10.
5. A method of manufacturing a display panel, the display panel comprising: the preparation method of the spacer, the display panel comprises the following steps:
s01, doping and mixing a doping material made of an elastic hydrogen bond crosslinking organic framework and a base material made of photoresist according to a preset proportion to form a mixture;
s02, providing a first substrate, and forming a patterned supporting layer on the first substrate by taking the mixture as a raw material, wherein the supporting layer comprises a plurality of spacer objects arranged at intervals;
s03, providing a second substrate, and assembling the first substrate provided with the spacer and the second substrate into a box through frame glue;
the spacer comprises a base material and a dopant mixed in the base material, wherein the dopant can generate volume expansion after ultraviolet irradiation treatment, the length of the spacer is 5-40 times of the height of the spacer, the width of the spacer is 5-40 times of the height of the spacer, the expansion ratio of the spacer in the length direction is 0-30%, and the expansion ratio of the spacer in the width direction is 0-30%;
the frame glue comprises a frame glue body and a doping agent mixed in the frame glue body, wherein the doping agent can generate volume expansion after ultraviolet irradiation treatment, and the doping agent in the frame glue body is the same as the doping agent in the spacer.
6. The method according to claim 5, wherein in the step S01, the predetermined ratio is that the mass ratio of the dopant to the substrate is 1:1000 to 1:10.
7. A method for repairing a display panel, comprising the display panel according to any one of claims 1 to 4, wherein the display panel comprises a spacer in a first state, the method comprising the steps of:
performing ultraviolet irradiation treatment on the spacer in the display panel to enable the spacer to be converted from a first state to a second state, wherein in the first state, the orthographic projection area of the spacer on the first substrate is a; in the second state, the orthographic projection area of the spacer on the first substrate is b; wherein b > a > 0;
performing ultraviolet irradiation treatment on the frame glue in the display panel to enable the frame glue to be converted into a second state from a first state, wherein in the first state, the orthographic projection area of the frame glue on the first substrate is c; in the second state, the orthographic projection area of the frame glue on the first substrate is d; wherein d > c > 0;
the spacer comprises a base material and a dopant mixed in the base material, wherein the dopant can generate volume expansion after ultraviolet irradiation treatment, the length of the spacer is 5-40 times of the height of the spacer, the width of the spacer is 5-40 times of the height of the spacer, the expansion ratio of the spacer in the length direction is 0-30%, and the expansion ratio of the spacer in the width direction is 0-30%.
8. The method for repairing a display panel according to claim 7, wherein the ultraviolet light used in the ultraviolet irradiation treatment has a wavelength of 150 to 300nm, and the ultraviolet irradiation treatment has a duration of 30 to 600 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358015.XA CN114815403B (en) | 2022-04-06 | 2022-04-06 | Display panel and preparation method and repair method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210358015.XA CN114815403B (en) | 2022-04-06 | 2022-04-06 | Display panel and preparation method and repair method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114815403A CN114815403A (en) | 2022-07-29 |
| CN114815403B true CN114815403B (en) | 2023-10-13 |
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