CN107976845B - Sealant, display panel and preparation method thereof - Google Patents
Sealant, display panel and preparation method thereof Download PDFInfo
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- CN107976845B CN107976845B CN201810002701.7A CN201810002701A CN107976845B CN 107976845 B CN107976845 B CN 107976845B CN 201810002701 A CN201810002701 A CN 201810002701A CN 107976845 B CN107976845 B CN 107976845B
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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
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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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- 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 relates to a sealant, a display panel and a preparation method thereof, and mainly solves the technical problems that the liquid crystal display panel frame sealing glue has poor waterproofness and is easy to enter water vapor to cause abnormal display. The main technical scheme adopted is as follows: the preparation method of the display panel comprises the following steps: arranging the sealant between the first substrate and the second substrate; irradiating the sealant for precuring; cutting the irradiated and pre-cured sealant to cut at least part of the shell of the capsule; and irradiating the cut sealant and curing. Wherein, the moisture permeability of the shadowless glue is less than that of the frame sealing glue, and the outflowing shadowless glue can form a moisture-proof film after being irradiated again; the moisture-proof film can improve the moisture-proof property of the display panel compared with the prior art.
Description
Technical Field
The invention relates to the technical field of display equipment, in particular to a sealant, a display panel and a preparation method thereof.
Background
A Liquid Crystal Display (LCD) is a common flat panel Display, and a Liquid Crystal panel is an important component of the LCD.
In the preparation of the liquid crystal panel, frame sealing glue with a fixing effect is coated on the periphery of an array substrate, liquid crystal is dripped in the center of the array substrate, then the array substrate and a color film substrate are subjected to box alignment in vacuum box alignment equipment to form the liquid crystal panel, then an ultraviolet curing process is carried out, the frame sealing glue is pre-cured, and then the liquid crystal panel is sent to a heating furnace to carry out heat curing on the frame sealing glue.
In order to meet the requirement of a narrow frame of a user, the thickness of the frame sealing glue is thin, and in a humid environment, water vapor molecules easily penetrate through the frame sealing glue to enter the liquid crystal panel, so that abnormal display of the liquid crystal panel is caused.
Disclosure of Invention
In view of the above, the invention provides a sealant, a display panel and a preparation method thereof, and mainly solves the technical problems that the liquid crystal display panel frame sealing glue has poor waterproofness and is easy to enter water vapor, so that abnormal display is caused.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, an embodiment of the present invention provides a sealant, including:
the capsule comprises a shell made of light-blocking materials and a shadowless adhesive arranged in the shell, wherein the shadowless adhesive has first moisture permeability;
the second mass part of the frame sealing glue of m2 has a second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Optionally, the sealant is provided, wherein the light blocking material includes plastic.
Optionally, the sealant includes a plastic material, and the plastic material includes polyethylene or polyvinyl chloride.
Optionally, the sealant includes a black coloring agent.
Optionally, the sealant is provided, wherein the outer diameter of the housing is between 0.1um and 20 um.
Optionally, the sealant is provided, wherein an outer diameter of the housing is between 0.5um and 0.8 um.
Optionally, the sealant, wherein the ratio of m1 to m2 is from 1 to 5 to 20.
In another aspect, an embodiment of the present invention provides a method for preparing a sealant, including:
depositing the light-blocking material on the outer surface of the shadowless glue through an in-situ polymerization process to prepare a shell of the light-blocking material, and forming a capsule;
uniformly mixing the capsules in the first mass part of m1 with the frame sealing glue in the second mass part of m2 to form the sealing glue, wherein the shadowless glue has a first moisture permeability, the frame sealing glue has a second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability.
In another aspect, an embodiment of the present invention provides a method for manufacturing a display panel, including:
arranging a sealant between the first substrate and the second substrate, wherein the sealant is the sealant;
irradiating the sealant for precuring;
cutting the irradiated and pre-cured sealant to cut at least part of the shell of the capsule;
and irradiating the cut sealant and curing.
In yet another aspect, an embodiment of the present invention provides a display panel, including:
a first substrate;
a second substrate;
the sealing glue is arranged between the first substrate and the second substrate, the sealing glue is the sealing glue, at least part of the shell of the capsule is cut at the side face of the sealing glue, and the shadowless glue forms a moisture-proof film at the side face of the sealing glue.
By the technical scheme, the sealant, the display panel and the preparation method thereof provided by the technical scheme of the invention at least have the following advantages:
in the technical scheme provided by the embodiment of the invention, the sealant between the first substrate and the second substrate comprises a capsule and a sealant, the shell of the capsule is made of a light-blocking material, a shadowless adhesive is arranged in the shell, in the preparation of the display panel, after the sealant is irradiated and pre-cured, the sealant irradiated and pre-cured can be cut, so that at least part of the shell of the capsule is cut, the outer stream of the shadowless adhesive in the shell is coated on the side surface (cutting surface) of the sealant, wherein the moisture permeability of the shadowless adhesive is less than that of the sealant, and the outflowing shadowless adhesive can form a moisture-proof film after being irradiated again; the moisture-proof film can improve the moisture-proof property of the display panel compared with the prior art.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present invention;
FIG. 2 is a solid diagram of a cross-sectional structure of a pre-cured display panel prepared by a display panel preparation method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a cross-sectional structure of a display panel at a first time after being cut by a method for manufacturing a display panel according to an embodiment of the present invention;
fig. 4 is a solid diagram of a cross-sectional structure of the display panel at a second time after being cut by the method for manufacturing a display panel according to the embodiment of the invention;
fig. 5 is a solid diagram of a cross-sectional structure of the display panel at a third time after being cut by the method for manufacturing a display panel according to the embodiment of the invention;
fig. 6 is a schematic cross-sectional structural diagram of a display panel according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the sealant, the display panel and the preparation method thereof according to the present invention will be made with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the prior art, in order to realize a narrow frame, the frame sealing glue width of the liquid crystal display panel is reduced, so that water vapor molecules can more easily penetrate through the frame sealing glue to enter the liquid crystal display panel. Because the frame sealing glue has certain moisture permeability, even if the completely cured frame sealing glue enters partial water vapor in an environment with higher humidity, the Voltage Holding Ratio (VHR) of the position is reduced under the influence of high temperature and water vapor, the direct current Residue (RDC) of ion aggregation on the surface of the liquid crystal display panel is increased, drift occurs, and the phenomenon that the periphery of the display screen is whitened in a macroscopic view and the phenomenon that part of the display screen is greened also occur. This is because the moisture enters the inside of the liquid crystal display panel and carries ions into it, forming a vertical electric field, resulting in greenness. The root of the method is that water vapor of the liquid crystal display panel enters the liquid crystal display panel through the frame sealing glue under the high-temperature and high-humidity environment.
Therefore, the best method for solving the abnormal display of the existing liquid crystal display panel is to reduce the moisture permeability of the frame sealing glue and prevent water vapor from entering the liquid crystal display panel. However, the moisture permeability of the sealant has been 100 g.m2The moisture-proof requirement cannot be met every day.
The sealant provided by the embodiment comprises a capsule and frame sealing glue, wherein the moisture permeability of shadowless glue in a capsule shell is smaller than that of the frame sealing glue, in the preparation process of the display panel, after the sealant is irradiated and pre-cured, the sealant irradiated and pre-cured can be cut, so that at least part of the shell of the capsule is cut, the outer flow of the shadowless glue in the shell is coated on the side surface (cutting surface) of the sealant, and after the outer shadowless glue is irradiated again, a moisture-proof film can be formed, so that the moisture resistance of the display panel is improved.
One embodiment of the present invention provides a sealant, including: the sealant comprises a first mass part of m1 capsules and a second mass part of m2 sealant. The capsule comprises a shell made of light-blocking materials and a shadowless adhesive arranged in the shell, wherein the shadowless adhesive has first moisture permeability; the frame sealing glue has a second moisture permeability, and the first moisture permeability is less than the second moisture permeability.
The sealant can be used for sealing between the first substrate and the second substrate of the display panel, in the sealing process, after the sealant is irradiated and pre-cured, the sealant irradiated and pre-cured can be cut, at least part of the shell of the capsule is cut, the outer stream of the shadowless glue in the shell is coated on the side surface (cutting surface) of the sealant, wherein the moisture permeability of the shadowless glue is smaller than that of the frame sealing glue, the outer stream of the shadowless glue can form a moisture-proof film after being irradiated again, and the moisture resistance of the display panel can be improved.
The second moisture permeability of the sealant is usually 100 g.m2The first moisture permeability may be in the range of 5 to 10 gm in embodiments of the invention2Day, but not limited thereto. The first moisture permeability can be 5-10 g.m2Per day, 100 g.m compared with the second moisture permeability2The moisture-proof film is much smaller per day, and the formed moisture-proof film has better moisture-proof effect.
The proportion of the first mass part m1 and the second mass part m2 can be determined according to the requirement of moisture resistance. The ratio of m1 to m2 may be in the range of 1 to (5 to 20) in terms of mass parts of m1 and 5 to 20 in terms of mass parts of m2, corresponding to a conventional liquid crystal display panel. Preferably, the ratio of m1 to m2 may be in the range of 1 to (9 to 11), e.g., 1 part by mass of m1 and 10 parts by mass of m 2.
The preparation method of the sealant provided by the embodiment can be used for preparing the sealant in the embodiment, wherein the prepared sealant comprises a capsule and a frame sealing adhesive, the capsule is small in diameter, and the preparation method can realize mass production by adopting an in-situ polymerization process.
The preparation method of the sealant provided by one embodiment of the invention comprises the following steps:
depositing the light-blocking material on the outer surface of the shadowless glue through an in-situ polymerization process to prepare a shell of the light-blocking material, and forming a capsule;
the light-blocking material can be prepared from a single material or a mixed material, and in order to improve the light-blocking effect of the shell, the light-blocking material can contain a black coloring agent, namely, the black coloring agent is mixed with the body material to form the light-blocking material. Of course, if the light-blocking effect of the body material meets the process requirements, the black coloring agent may not be added. The material of the body can be plastic material, such as polyethylene or polyvinyl chloride. Capsules of the required size can be prepared by regulating and controlling the process parameters of the in-situ polymerization process.
Uniformly mixing the capsules in the first mass part of m1 with the frame sealing glue in the second mass part of m2 to form the sealing glue, wherein the shadowless glue has a first moisture permeability, the frame sealing glue has a second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability.
The second moisture permeability of the sealant is usually 100 g.m2The first moisture permeability may be in the range of 5 to 10 gm in embodiments of the invention2Day, but not limited thereto. The first moisture permeability can be 5-10 g.m2Per day, 100 g.m compared with the second moisture permeability2The moisture-proof film is much smaller per day, and the formed moisture-proof film has better moisture-proof effect. The proportion of the first mass part m1 and the second mass part m2 can be determined according to the requirement of moisture resistance. The ratio of m1 to m2 may be in the range of 1 to (5 to 20) in terms of mass parts of m1 and 5 to 20 in terms of mass parts of m2, corresponding to a conventional liquid crystal display panel. Preferably, the ratio of m1 to m2 may be in the range of 1 to (9 to 11), e.g., 1 part by mass of m1 and 10 parts by mass of m 2.
In the preparation method of the sealant, the capsule is prepared by adopting an in-situ polymerization process, the process is easy to realize, and the sealant is suitable for batch production.
The embodiment provides a method for manufacturing a display panel, wherein a sealant between a first substrate and a second substrate includes a capsule and a frame sealing adhesive, moisture permeability of a shadowless adhesive in a capsule shell is smaller than moisture permeability of the frame sealing adhesive, after the sealant is irradiated and pre-cured, the sealant irradiated and pre-cured can be cut, so that at least part of the capsule shell is cut, the shadowless adhesive in the shell flows out and coats the side surface (cutting surface) of the sealant, and after the shadowless adhesive flowing out is irradiated again, a moisture-proof film can be formed, so that moisture resistance of the display panel is improved.
Fig. 1 to 5 show an embodiment of a method for manufacturing a display panel according to the present invention, and referring to fig. 1 to 5, the method for manufacturing a display panel according to an embodiment of the present invention includes:
s10 disposing the sealant between the first substrate 10 and the second substrate 20; a sealant, comprising: the sealant comprises a first mass part of m1 capsule 31 and a second mass part of m2 frame sealing glue 32; the capsule comprises a shell made of light-blocking materials and a shadowless adhesive arranged in the shell, wherein the shadowless adhesive has first moisture permeability; the frame sealing glue has a second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability;
the first substrate may be a color film substrate, the second substrate may be an array substrate, but not limited thereto, in the preparation of the liquid crystal display panel, liquid crystal is dripped on the color film substrate, and the sealant is located around the liquid crystal. In order to ensure a better moisture-proof effect of the sealant, the sealant capsule and the sealant can be arranged between the first substrate and the second substrate after being fully mixed.
S20, irradiating the sealant for precuring;
in the ultraviolet irradiation, the frame sealing glue is pre-cured, wherein the shell of the capsule is made of light-blocking material, so that the curing failure of the shadowless glue in the shell can be prevented.
S30, cutting the irradiated and pre-cured sealant to cut at least part of the shell of the capsule;
during cutting, the shell of the capsule is cut open, so that the shadowless glue 311 can seep out of the shell and can flow on the cutting surface of the frame sealing glue under the action of surface tension.
In the prior art, the spacing between the first and second substrates is typically 3.2um, and the outer diameter of the housing can be between 0.1um and 20um, preferably between 0.5um and 0.8 um. The ratio of m1 to m2 can be 1: 5 to 20, so that 2-6 capsules are distributed in the thickness direction of the cut surface of the product. The capacity of the capsule can be ensured, and the shadowless glue in the capsule can be uniformly distributed as far as possible. The specific analysis is as follows:
the capsule is evenly mixed in the frame sealing glue, the diameter of the capsule is 0.8um as an example, the radius R is 0.4um, the wetting radius after the cutting and the breaking is R, the wetting thickness d is 0.1um, the density of the capsule and the density of the frame sealing glue can be neglected and considered to be rho, and the following can be obtained:
4/3πr3＝dπR2
r is 0.924 so that the wetting radius of the capsule with the radius of 0.4um is 0.924um
r＝0.4
r/R＝0.4/0.924
From the mass formula: m is1/2＝(ρ4/3πr3)/(ρ4/3πR3)＝1/12
To ensure that the cut surface is completely wetted by the shadowless glue, the ratio of m1 to m2 can be 1 to (5 to 20), i.e. 1 part by mass of m1 and 5 to 20 parts by mass of m2 can be adopted. Preferably, the ratio of m1 to m2 may be in the range of 1 to (9 to 11), e.g., 1 part by mass of m1 and 10 parts by mass of m 2. In practice, the capsules cannot be uniformly distributed on the cutting surface theoretically, and the probability that the shadowless glue completely wets the cutting surface can be improved by increasing the mass ratio of the capsules.
S40 irradiating the cut sealant for curing.
And in the ultraviolet irradiation, the shadowless glue flowing on the cutting surface of the frame sealing glue is cured by the ultraviolet rays to form the moisture-proof film.
The second moisture permeability of the sealant is usually 100 g.m2The first moisture permeability may be in the range of 5 to 10 gm in embodiments of the invention2In one day, the moisture permeability of the shadowless glue is far less than that of the frame sealing glue, so that the moisture-proof film can form a better moisture-proof effect. The moisture entering the display panel is reduced, the moisture resistance of the display panel can be improved, and the occurrence rate of abnormal display of the display panel is reduced. The embodiment provided by the invention has the advantages of simple process, easiness in implementation, obvious effect and capability of realizing a better moisture-proof effect. In addition, the embodiment provided by the invention is suitable for display panels with various sizes, does not need complex process change and has lower production cost.
The sealant provided in the above embodiments can be directly used as the sealant in this embodiment, and the specific implementation structure can refer to the related contents described in the above embodiments, which is not described herein again.
In addition, in step s30, if the hardness of the outer shell is large, it is difficult to cut all the capsules, resulting in waste. In some embodiments of the present invention, the light-blocking material of the capsule shell may include plastic which is easily brittle, cracked and cracked under the irradiation of ultraviolet rays at a high temperature, and the plastic is usually polyethylene or polyvinyl chloride; for example, the housing may be made of polyethylene or polyvinyl chloride. In step s20, the plastic shell is easily weakened in hardness by irradiation with ultraviolet rays or curing at a high temperature, and the capsule shell is easily cut in step s 30.
In the display panel provided by the embodiment, the sealant between the first substrate and the second substrate includes a capsule and a frame sealing adhesive, the moisture permeability of the shadowless adhesive in the capsule shell is less than that of the frame sealing adhesive, and the shadowless adhesive flowing out of the cut side surface of the sealant can form a moisture-proof film, so that the moisture resistance of the display panel is improved.
Fig. 6 is a schematic diagram of a display panel according to an embodiment of the present invention, and referring to fig. 6, the display panel according to an embodiment of the present invention includes:
At least a portion of the capsule shell is cut at the sealant side 30a, and the shadowless adhesive forms a moisture barrier at the sealant side 30 a.
The first substrate can be a color film substrate, the second substrate can be an array substrate, liquid crystal is arranged between the color film substrate and the array substrate, and the sealant is located around the liquid crystal.
The sealant provided in the above embodiments can be directly used as the sealant in this embodiment, and the specific implementation structure can refer to the related contents described in the above embodiments, which is not described herein again.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The invention may be implemented by means of an apparatus comprising several distinct elements. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention are still within the scope of the technical solution of the present invention.
Claims (10)
1. A sealant is applied to a liquid crystal display panel and is characterized by comprising:
the capsule comprises a shell made of light-blocking materials and a shadowless adhesive arranged in the shell, wherein the shadowless adhesive has first moisture permeability;
the second mass part of the frame sealing glue of m2 has second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability;
the seal gum is used for being irradiated and pre-cured, then the seal gum after being irradiated and pre-cured is cut, at least part of the shell of the capsule is cut, the outer stream of the shadowless gum in the shell is coated on the side face of the seal gum, and the exposed shadowless gum forms a moisture-proof film after being irradiated again.
2. The sealant according to claim 1,
the light blocking material comprises plastic.
3. The sealant according to claim 2,
the plastic comprises polyethylene or polyvinyl chloride.
4. The sealant according to claim 1,
the light blocking material includes a black colorant.
5. The sealant according to claim 1,
the outer diameter of the shell is between 0.1um and 20 um.
6. The sealant according to claim 1,
the outer diameter of the shell is between 0.5um and 0.8 um.
7. The sealant according to any one of claims 1 to 6,
the ratio of m1 to m2 is 1 to 5 to 20.
8. A preparation method of sealant is applied to a liquid crystal display panel and is characterized by comprising the following steps:
depositing the light-blocking material on the outer surface of the shadowless glue through an in-situ polymerization process to prepare a shell of the light-blocking material, and forming a capsule;
uniformly mixing a first mass part of m1 capsules and a second mass part of m2 frame sealing glue to form a sealing glue, wherein the shadowless glue has a first moisture permeability, the frame sealing glue has a second moisture permeability, and the first moisture permeability is smaller than the second moisture permeability;
after the sealant is irradiated and pre-cured, cutting the sealant after the irradiation and pre-curing to cut at least part of the shell of the capsule, coating the outflow shadowless glue in the shell on the side surface of the sealant, and irradiating the outflow shadowless glue again to form a moisture-proof film to form the moisture-proof film.
9. A method for manufacturing a display panel, comprising:
disposing a sealant between the first substrate and the second substrate, the sealant being as described in any of claims 1-7 above;
irradiating the sealant for precuring;
cutting the irradiated and pre-cured sealant to cut at least part of the shell of the capsule;
and irradiating the cut sealant and curing.
10. A display panel, comprising:
a first substrate;
a second substrate;
a sealant disposed between the first substrate and the second substrate, wherein the sealant is the sealant according to any one of claims 1 to 7, at least a part of the outer shell of the capsule is cut at the side of the sealant, and the shadowless glue forms a moisture-proof film at the side of the sealant.
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| CN110007527B (en) * | 2019-04-22 | 2022-11-18 | 京东方科技集团股份有限公司 | Frame sealing glue, display panel, manufacturing method of display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105785666A (en) * | 2016-05-19 | 2016-07-20 | 京东方科技集团股份有限公司 | Frame-sealing glue composition, opposite assembling method and display panel |
| CN107045231A (en) * | 2016-12-29 | 2017-08-15 | 惠科股份有限公司 | Display panel and display device |
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| TWI223783B (en) * | 2003-07-31 | 2004-11-11 | Ritdisplay Corp | Dual display device |
| KR102237786B1 (en) * | 2014-01-02 | 2021-04-09 | 삼성디스플레이 주식회사 | Sealant compositions, methods of preparing sealant compositions and display panel including sealants |
| CN105549272A (en) * | 2016-01-29 | 2016-05-04 | 武汉华星光电技术有限公司 | Packaging structure and method of display panel |
| CN105885722B (en) * | 2016-06-24 | 2018-07-13 | 京东方科技集团股份有限公司 | Sealant and preparation method thereof, display panel, display device |
| CN106773362B (en) * | 2017-03-09 | 2020-02-11 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105785666A (en) * | 2016-05-19 | 2016-07-20 | 京东方科技集团股份有限公司 | Frame-sealing glue composition, opposite assembling method and display panel |
| CN107045231A (en) * | 2016-12-29 | 2017-08-15 | 惠科股份有限公司 | Display panel and display device |
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