CN114675439A - Display panel, preparation method thereof and display device - Google Patents
Display panel, preparation method thereof and display device Download PDFInfo
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- CN114675439A CN114675439A CN202210333529.XA CN202210333529A CN114675439A CN 114675439 A CN114675439 A CN 114675439A CN 202210333529 A CN202210333529 A CN 202210333529A CN 114675439 A CN114675439 A CN 114675439A
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Images
Classifications
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
-
- 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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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel, a preparation method thereof and a display device, wherein the display panel comprises a display area and a frame area positioned on the peripheral side of the display area, and the display panel comprises: a first substrate; the second substrate is paired with the first substrate; the first substrate is arranged on the first side of the first substrate, and the second substrate is arranged on the second side of the first substrate; the frame adhesive layer is arranged between the two alignment layers and correspondingly arranged in the frame area; the display panel comprises a frame area, a frame glue layer and two alignment layers, wherein any alignment layer comprises a first alignment part and a second alignment part, the first alignment part covers the display area, the second alignment part is located in the frame area, the frame glue layer is respectively connected with the second alignment parts of the two alignment layers, the second alignment part is made of a material comprising a nanocrystal, the nanocrystal comprises a heavy metal element, and the nanocrystal is doped in the second alignment part, so that the reliability of the display panel is remarkably improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display panel, a preparation method thereof and a display device.
Background
Along with the requirement of people on the display effect is higher and higher, the high refresh rate, high resolution and extremely narrow frame have become the indispensable essential factor of high-end electronic display product in the market, wherein, to liquid crystal display panel, high refresh rate and high resolution can be constantly broken through thin film transistor driven design and pixel arrangement, and liquid crystal display panel need become the liquid crystal box to the pair, this makes the frame gum that needs occupy a part of area outside the display area, and in order to show the degree evenly, the alignment layer needs to be greater than the display area scope, this makes the frame gum further expand outward, it is great to lead to liquid crystal display panel to realize the degree of difficulty of narrow frame.
At present, in order to reduce the area occupied by the alignment layer and the frame glue outside the display area to narrow the frame, a coating mode of full coverage of the alignment layer is developed, in the process, on one hand, the frame glue directly contacts with the alignment layer and does not contact with the substrate, so that the bonding effect is reduced, and the bonding interface of the frame glue and the alignment layer is easy to peel; on the other hand, water vapor may enter the display panel along the edge of the alignment layer, resulting in poor display.
Disclosure of Invention
The invention provides a display panel, a preparation method thereof and a display device, which can solve the problem of poor reliability of the display panel caused by water vapor invasion and film layer stripping.
In order to solve the above problem, in a first aspect, the present invention provides a display panel, where the display panel includes a display area and a frame area located on a peripheral side of the display area, and the display panel includes:
a first substrate;
the second substrate is paired with the first substrate;
the alignment layer is arranged on one side of the first substrate close to the second substrate, and the other alignment layer is arranged on one side of the second substrate close to the first substrate;
the frame adhesive layer is arranged between the two alignment layers and correspondingly arranged in the frame area;
the alignment layer comprises a first alignment portion and a second alignment portion, the first alignment portion covers the display area, the second alignment portion is located in the frame area, the frame adhesive layer is connected with the second alignment portions of the two alignment layers respectively, the second alignment portion is made of a material including a nanocrystal, and the nanocrystal includes a heavy metal element.
In the display panel provided in the embodiment of the present invention, the nanocrystal includes the heavy metal element and an chalcogen element, and the heavy metal element is cadmium or lead.
In the display panel provided in the embodiment of the present invention, the nanocrystal includes a ligand, and the ligand is an oil phase ligand having 2 to 16 carbon atoms.
In one embodiment of the present invention, the ligand includes pyridine.
In a display panel provided by an embodiment of the present invention, the ligand includes a diamine compound.
In the display panel provided in the embodiment of the present invention, in the second alignment portion, the mass percentage of the nanocrystals is 2 wt% to 10 wt%.
In the display panel according to the embodiment of the invention, the second alignment portion has a square structure and is disposed around the display region.
In the display panel provided in the embodiment of the present invention, a distance from an edge of the second alignment portion close to the display region is greater than 1000 micrometers.
In a second aspect, an embodiment of the present invention provides a method for manufacturing a display panel, where the display panel includes a display area and a frame area located on a peripheral side of the display area, and the method includes the following steps:
s10: providing a first substrate and a second substrate, and forming an alignment layer on the first substrate and the second substrate, wherein the alignment layer comprises a first alignment part and a second alignment part, the first alignment part covers the display area, the second alignment part is located in the frame area, the material of the second alignment part comprises a nanocrystal, and the nanocrystal comprises a heavy metal element;
s20: and enabling the alignment layers on the first substrate to face the alignment layer pair groups on the second substrate and be attached through frame glue layers, wherein the frame glue layers are respectively connected with the second alignment parts of the two alignment layers.
In a third aspect, an embodiment of the present invention provides a display device, which includes the above display panel.
Has the beneficial effects that: the invention provides a display panel and a preparation method thereof and a display device, wherein the display panel comprises two alignment layers respectively arranged on a first substrate and a second substrate and a frame glue layer arranged between the two alignment layers, wherein the alignment layers are divided into two parts, a first alignment part covering a display area is used for carrying out conventional alignment, a second alignment part arranged in a frame area is used for being connected with a frame glue layer, and a nanocrystalline is doped in the second alignment part, the nanocrystalline comprises heavy metal elements, on one hand, heavy metal atoms in the nanocrystalline can form action with oxygen atoms in water vapor to adsorb the water vapor and prevent the water vapor in the environment from entering the display panel, on the other hand, the heavy metal atoms in the nanocrystalline can be combined with functional groups which are conventionally present in the frame glue layer, such as amino, carboxyl and the like, so that the bonding force between the frame glue layer and the alignment layers is improved, and then reduce the frame glue film and the risk that the interface that the alignment layer bondd takes place to peel off, promptly, through adulterating the nanocrystalline in second alignment portion, show the reliability that has promoted display panel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a display panel according to the prior art;
FIG. 2 is a schematic cross-sectional view of another display panel provided in the prior art;
fig. 3 is a schematic cross-sectional structure diagram of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic plan view illustrating a display panel according to an embodiment of the present invention;
fig. 5 is a schematic text flow chart of a method for manufacturing a display panel according to an embodiment of the present invention;
fig. 6A-6B are schematic structural flow diagrams of a method for manufacturing a display panel according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
First, please refer to fig. 1, which illustrates a conventional display panel in the prior art, including a first substrate 100 and a second substrate 200, an alignment layer 300 is disposed on each of the first substrate 100 and the second substrate 200, a frame glue layer 400 is disposed on the periphery of the alignment layer 300, and the first substrate 100 and the second substrate 200 are bonded by the frame glue layer 400, in the display panel, in order to ensure the uniformity of the alignment layer 300 in the display area, the setting range of the alignment layer 300 is slightly larger than the display area, the sum of the width of the alignment layer beyond the display area and the width of the frame glue layer 400 is the frame width of the display panel, and the width is wide, which is not beneficial to the realization of a very narrow frame of the display panel;
therefore, in the prior art, the alignment layer full-coverage technology is adopted to narrow the frame width of the display panel, specifically referring to fig. 2, the two alignment layers 300 completely cover the first substrate 100 and the second substrate 200, the frame adhesive layer 400 is directly connected with the edges of the two alignment layers 300, although the arrangement is favorable for realizing a narrow frame, disadvantages are also brought at the same time, the frame adhesive layer 400 directly contacts with the alignment layers 300 on one hand, the adhesive force between the frame adhesive layer 400 and the alignment layers 300 is usually smaller than that between the frame adhesive layer 400 and the substrates, and the bonded interface between the frame adhesive layer 400 and the alignment layers 300 is easy to peel off; on the other hand, water vapor may enter the display panel along the edge of the alignment layer 300, resulting in poor display.
In view of the above problems, an embodiment of the present invention provides a display panel, which is described in detail with reference to fig. 3 and 4 as follows:
the display panel comprises a display area A1 and a frame area A2 located on the peripheral side of the display area A1, the frame area A2 is usually arranged around the display area A1, the display panel comprises a first substrate 100 and a second substrate 200 arranged in a pair with the first substrate 100, one of the first substrate 100 and the second substrate 200 is an array substrate, the other is a color film substrate, two alignment layers 300 are arranged between the first substrate 100 and the second substrate 200, the two alignment layers 300 have the same structure, one alignment layer 300 is arranged on the side of the first substrate 100 close to the second substrate 200, the other alignment layer 300 is arranged on the side of the second substrate 200 close to the first substrate 100, a frame glue layer 400 is arranged between the two alignment layers 300, and the frame glue layer 400 is correspondingly arranged in the frame area A2, the frame adhesive layer 400 and the two alignment layers 300 enclose a closed space, and a liquid crystal layer 500 is arranged in the closed space;
any of the alignment layers 300 includes a first alignment portion 310 and a second alignment portion 320, the first alignment portion 310 covers the display area a1, the first alignment portion 310 is the same as an alignment layer of a conventional display panel in the prior art, and is typically a polyimide film for aligning liquid crystal molecules in the liquid crystal layer 500, the second alignment portion 320 is located in the frame area a2, the second alignment portion 320 is similar to the first alignment portion 310 in material, except that a certain proportion of nanocrystals are doped in the second alignment portion 320, the nanocrystals include heavy metal elements, that is, the second alignment portion 320 is typically a polyimide film doped with nanocrystals, and the frame glue layer 400 is respectively connected to the second alignment portions 320 of the two alignment layers 300.
In the display panel provided in this embodiment, the alignment layer 300 is divided into two parts, the first alignment portion 310 covering the display area a1 is used for performing conventional alignment, the second alignment portion 320 disposed in the frame area a2 is used for connecting with the frame sealant layer 400, and a certain proportion of nanocrystals are doped in the second alignment portion 320, the nanocrystals include heavy metal elements, on one hand, heavy metal atoms in the nanocrystals can form an effect with oxygen atoms in water vapor to adsorb water vapor, thereby blocking water vapor in the environment from entering the display panel, and serving as a blocking barrier for resisting water vapor intrusion, thereby greatly reducing the probability of poor display due to water vapor intrusion, on the other hand, heavy metal atoms in the nanocrystals can form coordinate bonds with conventionally existing functional groups, such as amino groups, carboxyl groups, and the like, in the frame sealant layer 400, thereby improving the adhesive force between the frame sealant layer 400 and the second alignment portion 320, further, the risk of peeling off the interface between the frame adhesive layer 400 and the alignment layer 300 is reduced, that is, the second alignment portion 320 is doped with the nanocrystals, so that the reliability of the display panel is significantly improved.
It should be added that the nanocrystal in the embodiment of the present invention is a quantum dot, also referred to as a semiconductor nanocrystal, is a zero-dimensional nanostructure composed of a small number of atoms and having a three-dimensional size of usually 1 to 100nm, and is a conventional material in the display field, at present, a light emitting device is generally prepared by using a good light emitting characteristic of a nanocrystal material, so as to achieve a good display effect.
In some embodiments, the nanocrystal includes the heavy metal element and the chalcogen element, the heavy metal element is cadmium or lead, the chalcogen element is oxygen, sulfur, selenium or tellurium, and the nanocrystal may be cadmium selenide, cadmium telluride, cadmium sulfide, lead selenide, lead telluride or lead sulfide, for example.
In some embodiments, since the nanocrystal surface activation energy is large and aggregation is liable to occur, in order to uniformly disperse nanocrystals in the second alignment portions 320, the nanocrystals typically include ligands that form coordinate bonds with heavy metal atoms and are formed on the surface of the nanocrystals, thereby reducing the activation energy of the nanocrystals to be uniformly dispersed;
further, the main body structure of the second alignment portion 320 is usually a polyimide film, and is formed by solidifying an alignment liquid, and the alignment liquid usually includes carboxylic dianhydride, diamine, organic solvent, etc. in order to make the nanocrystal uniformly dispersed in the alignment liquid and then uniformly dispersed in the second alignment portion 320 after solidification, the ligand is an oil phase ligand, i.e. a lipophilic ligand, which is usually selected from alkane, arene, heteroarene, or alkane containing aryl, carboxyl, ester, ether, amine, amide, etc. groups, or arene or heteroarene containing carboxyl, ester, ether, amine, amide, etc., and the molecular weight of the ligand is not too large, and the number of carbon atoms is preferably 2 to 16.
In some embodiments, the main structure of the second alignment portion 320 is usually a polyimide film, and is formed by solidifying an alignment solution, and the solidifying process includes dehydrating and cyclizing (imidizing) a polyamic acid to form a polyimide, at this time, the ligand of the nanocrystal is set to include a certain amount of pyridine, and the cyclization reaction of the polyamic acid is promoted to proceed in a forward direction by utilizing the property that pyridine absorbs water easily, so as to increase the cyclization rate of the polyimide in the second alignment portion 320, thereby increasing the mechanical performance of the polyimide in the second alignment portion 320, further increasing the adhesion between the second alignment portion 320 and the first substrate 100 and the second substrate 200, and avoiding poor display caused by peeling between the second alignment portion 320 and the first substrate 100 or the second substrate 200.
In some embodiments, the ligand of the nanocrystal is configured to include a certain amount of diamine compound, such as ethylene diamine, p-phenylene diamine, or m-phenylene diamine, and the diamine compound is used as the ligand of the nanocrystal, which is beneficial for the nanocrystal to be uniformly dispersed in the second alignment portion 320, and can participate in the cyclization reaction to the polyamic acid, so that display defects such as panel residual images caused by dissociation into the display panel are avoided.
In some embodiments, it is studied that, in the second alignment portion 320, the mass percentage of the nanocrystals is 2 wt% to 10 wt%, so that the second alignment portion 320 has a better effect of blocking water vapor from entering, and has a better adhesive force with the frame adhesive layer 400, while not affecting other properties of the second alignment portion 320.
In some embodiments, referring to fig. 4, the second alignment portion 320 is square-shaped and surrounds the display area a1, and the second alignment portion 320 is generally connected to the first alignment portion 310, i.e. the second alignment portion 320 is disposed around and at the outer edge of the first alignment portion 310.
Further, in order to ensure the uniformity of the first alignment portion 310 in the display area a1, the arrangement range of the first alignment portion 310 needs to exceed the boundary of the display area a1 by a certain distance, and accordingly, the inner boundary of the second alignment portion 320, i.e. the edge close to the display area a1, needs to be spaced from the display area a1 by a certain distance, generally, the distance d from the edge close to the display area a1 to the display area a1 of the second alignment portion 320 is greater than 1000 micrometers, and the edge of the second alignment portion 320 far from the display area a1 is flush with the edges of the color filter substrates in the first substrate 100 and the second substrate 200.
In some embodiments, an orthogonal projection of the frame adhesive layer 400 on the first substrate 100 coincides with an orthogonal projection of any one of the second alignment portions 320 on the first substrate 100, that is, the frame adhesive layer 400 and the second alignment portions 320 are disposed at the same position, so that a contact area between the frame adhesive layer 400 and the second alignment portions 320 is maximized, and a bonding force between the frame adhesive layer 400 and the second alignment portions 320 is further improved.
It should be noted that, in the above display panel embodiment, only the above structure is described, and it is understood that, in addition to the above structure, the display panel according to the embodiment of the present invention may further include any other necessary structure as needed, and the specific structure is not limited herein.
In a second aspect, an embodiment of the present invention provides a method for manufacturing a display panel in the foregoing embodiment, referring to fig. 5 and fig. 6A-6B, the display panel includes a display area a1 and a frame area a2 located on a peripheral side of the display area a1, and the method includes the following steps:
s10: referring to fig. 6A, a first substrate 100 and a second substrate 200 are provided, an alignment layer 300 is formed on the first substrate 100 and the second substrate 200, the alignment layer 300 includes a first alignment portion 310 and a second alignment portion 320, the first alignment portion 310 covers the display area a1, the second alignment portion is located in the frame area, a material of the second alignment portion includes a nanocrystal, and the nanocrystal includes a heavy metal element;
s20: referring to fig. 6B, the alignment layers 300 on the first substrate 100 are aligned with the alignment layer 300 on the second substrate 200 and bonded together through a frame adhesive layer 400, a liquid crystal layer 500 is formed in a space surrounded by the frame adhesive layer 400 and the two alignment layers 300, and the frame adhesive layer 400 is connected to the second alignment portions 320 of the two alignment layers 300 respectively.
Specifically, in S10, the forming step of the alignment layer 300 includes:
providing a first alignment liquid and a second alignment liquid, wherein the first alignment liquid is a conventional alignment liquid in the field, and the second alignment liquid is obtained by mixing the first alignment liquid and a nanocrystal;
coating alignment liquid layers on the first substrate and the second substrate, respectively, wherein the coating formation of the alignment liquid layers includes coating formation of a first alignment liquid portion using the first alignment liquid and coating formation of a second alignment liquid portion using the second alignment liquid, and here, the drawings are not given to illustrate the formation positions of the first alignment liquid portion and the second alignment liquid portion, and referring to fig. 6A, the formation position of the first alignment liquid portion is the same as that of the first alignment portion 310, and the formation position of the second alignment liquid portion is the same as that of the second alignment portion 320;
and passing the alignment liquid layer through a curing process to form the alignment layer 300, specifically, the first alignment liquid portion is cured to form the first alignment portion 310, the second alignment liquid portion is cured to form the second alignment portion 320, and the curing process is thermal curing or photo-curing.
Further, the alignment liquid layer may be formed by coating through an inkjet printing process, and in actual production, two types of printing nozzles may be disposed in an inkjet printing device, including a first printing nozzle and a second printing nozzle, where the first printing nozzle is configured to print the first alignment liquid to form the first alignment liquid portion, and the second printing nozzle is configured to print the second alignment liquid to form the second alignment liquid portion.
In some embodiments, the content of the nanocrystals in the second alignment liquid is 1-5 mg/ml, which is specifically set according to actual process requirements.
Another embodiment of the present invention provides a display device, which includes the display panel provided in the above embodiments, and the display device includes, but is not limited to, a mobile phone, a smart watch, a tablet computer, a notebook computer, a television, and the like.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
The display panel, the manufacturing method thereof and the display device provided by the embodiment of the invention are described in detail above, a specific example is applied in the description to explain the principle and the embodiment of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. The display panel, characterized in that, the display panel includes a display area and a frame area located on the periphery of the display area, the display panel includes:
a first substrate;
the second substrate is paired with the first substrate;
the alignment layer is arranged on one side of the first substrate close to the second substrate, and the other alignment layer is arranged on one side of the second substrate close to the first substrate;
the frame adhesive layer is arranged between the two alignment layers and correspondingly arranged in the frame area;
the alignment layer comprises a first alignment portion and a second alignment portion, the first alignment portion covers the display area, the second alignment portion is located in the frame area, the frame adhesive layer is connected with the second alignment portions of the two alignment layers respectively, the second alignment portion is made of a material including a nanocrystal, and the nanocrystal includes a heavy metal element.
2. The display panel according to claim 1, wherein the nanocrystals comprise the heavy metal element and an chalcogen element, and wherein the heavy metal element is cadmium or lead.
3. The display panel according to claim 2, wherein the nanocrystals comprise a ligand, and the ligand is an oil phase ligand having 2 to 16 carbon atoms.
4. The display panel of claim 3, wherein the ligand comprises pyridine.
5. The display panel according to claim 3, wherein the ligand comprises a diamine compound.
6. The display panel according to claim 1, wherein the mass percentage of the nanocrystals in the second alignment portion is 2 wt% to 10 wt%.
7. The display panel according to claim 1, wherein the second alignment portion has a square-shaped configuration and is disposed around the display region.
8. The display panel according to claim 7, wherein the distance from the edge of the second alignment portion close to the display region is greater than 1000 μm.
9. A preparation method of a display panel is characterized in that the display panel comprises a display area and a frame area located on the periphery of the display area, and the preparation method comprises the following steps:
s10: providing a first substrate and a second substrate, and forming an alignment layer on the first substrate and the second substrate, wherein the alignment layer comprises a first alignment part and a second alignment part, the first alignment part covers the display area, the second alignment part is located in the frame area, the material of the second alignment part comprises a nanocrystal, and the nanocrystal comprises a heavy metal element;
s20: and enabling the alignment layers on the first substrate to face the alignment layer pair groups on the second substrate and be attached through frame glue layers, wherein the frame glue layers are respectively connected with the second alignment parts of the two alignment layers.
10. A display device characterized in that it comprises a display panel according to any one of claims 1 to 8.
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| CN104297990A (en) * | 2014-10-22 | 2015-01-21 | 合肥鑫晟光电科技有限公司 | Colored film substrate and manufacturing method thereof, display panel and manufacturing method thereof, and display device |
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| CN108780244A (en) * | 2016-03-10 | 2018-11-09 | 夏普株式会社 | Liquid crystal display device and alignment films |
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| CN104297990A (en) * | 2014-10-22 | 2015-01-21 | 合肥鑫晟光电科技有限公司 | Colored film substrate and manufacturing method thereof, display panel and manufacturing method thereof, and display device |
| CN108780244A (en) * | 2016-03-10 | 2018-11-09 | 夏普株式会社 | Liquid crystal display device and alignment films |
| US20170276854A1 (en) * | 2016-03-24 | 2017-09-28 | Samsung Display Co., Ltd. | Display device and method for fabricating the same |
| CN106206474A (en) * | 2016-08-31 | 2016-12-07 | 昆山国显光电有限公司 | A kind of encapsulating structure improving Frit packaging machinery intensity and method for packing thereof |
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