CN117479805A

CN117479805A - Display panel and manufacturing method thereof

Info

Publication number: CN117479805A
Application number: CN202310316988.1A
Authority: CN
Inventors: 王德祺
Original assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Current assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2024-01-30

Abstract

The application discloses a display panel and a manufacturing method of the display panel. The display panel includes: a glass substrate; a display panel main body including an organic layer provided on the glass substrate, and a thin film transistor layer provided on the organic layer, at least a portion of an outer edge of the organic layer exceeding an outer edge of the glass substrate; an optical adhesive layer arranged on the display panel main body; and the curved surface cover plate is arranged on the optical adhesive layer. The glass substrate and the display panel main body are flexible all around after being combined, the middle area is rigid, and the hardness of the module is improved while the solid curved product is realized.

Description

Display panel and manufacturing method thereof

Technical Field

The application relates to the technical field of display, in particular to a display panel and a manufacturing method of the display panel.

Background

Organic light-Emitting Diode (OLED) displays are currently the main display products in the market due to their flexibility, self-luminescence, wide viewing angle, etc., and are known as the most potential display technology after LCD (Liquid Crystal Display) displays. The OLED light-emitting device adopts a sandwich structure, electrons and holes are injected into an organic light-emitting layer after current is introduced into two ends, and different organic light-emitting materials emit light with different colors under exciton excitation, so that the OLED light-emitting device is applied to various display products.

Because the glass substrate is arranged below the panel, the screen strength of the Hybrid OLED (Hybrid OLED) is stronger than that of the flexible OLED, and the cost of the Hybrid OLED is lower than that of the flexible screen, so that the Hybrid OLED has great application potential, and all panel manufacturers have studied the technology. Compared with the flexible OLED, the Hybrid OLED has the greatest defect that a solid curved product cannot be made, such as double curved or four curved products can be realized only by using a flexible PI (Polyimide) substrate, and the application scene of the Hybrid OLED is limited.

Disclosure of Invention

The embodiment of the application provides a display panel and a manufacturing method of the display panel, wherein after a glass substrate and a display panel main body are combined, the periphery is flexible, the middle area is rigid, and the hardness of a module is improved while a solid curved product is realized.

In a first aspect, embodiments of the present application provide a display panel, including:

a glass substrate;

a display panel main body including an organic layer provided on the glass substrate, and a thin film transistor layer provided on the organic layer, at least a portion of an outer edge of the organic layer exceeding an outer edge of the glass substrate;

an optical adhesive layer arranged on the display panel main body;

and the curved surface cover plate is arranged on the optical adhesive layer.

In some embodiments, the outer edges of opposite sides of the organic layer extend beyond the outer edges of the glass substrate; or, the outer edges of the periphery of the organic layer exceed the outer edges of the glass substrate.

In some embodiments, the display panel further comprises:

the foaming layer is arranged on one side, far away from the display panel main body, of the glass substrate;

and the grid adhesive layer is arranged between the foaming layer and the glass substrate.

In some embodiments, the outer edges of the gridding layer and the foaming layer do not exceed the outer edges of the glass substrate.

In some embodiments, the display panel further includes a back plate, the back plate is disposed in a region of the display panel body not covered by the glass substrate, and the back plate and the glass substrate are disposed on the same side of the display panel body.

In some embodiments, the thickness of the back plate is smaller than the thickness of the glass substrate, and the thickness direction is a stacking direction of the glass substrate to the curved cover plate.

In some embodiments, a sealing adhesive connection part is arranged at the joint of the back plate and the glass substrate.

In some embodiments, the top of the sealant connection portion does not exceed an end surface of the glass substrate remote from the display panel body.

In a second aspect, the present application provides a method for manufacturing a display panel, including:

providing a glass substrate;

preparing the display panel main body on the glass substrate, wherein the display panel main body comprises an organic layer arranged on the glass substrate;

removing and stripping the glass substrate within a preset range of the outer edge, and completely reserving the organic layer;

and an optical adhesive layer and a curved cover plate are sequentially attached to one side, far away from the glass substrate, of the display panel main body.

In some embodiments, the removing and peeling the glass substrate within a preset range of the outer edge, after leaving the organic layer intact, further includes:

preparing a back plate on the display panel body in a region from which the glass substrate has been peeled off;

and sealing the joint of the backboard and the glass substrate.

According to the display panel and the manufacturing method of the display panel, at least part of the outer edge of the display panel body exceeds the outer edge of the glass substrate, and space is provided for bending of the outer edge of the display panel body when the curved cover plate is attached to the display panel body, so that a solid curved product is realized, and meanwhile, the hardness of a module is improved.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

FIG. 1 is a schematic view of a display panel according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 4 is a flow chart of a method for fabricating a display panel according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

fig. 6 is a flow chart illustrating a method for manufacturing a display panel according to an embodiment of the disclosure.

Reference numerals:

1. a glass substrate; 2. a display panel main body; 21. an organic layer; 22. a thin film transistor layer; 23. a polarizer; 3. an optical adhesive layer; 4. a curved cover plate; 5. a grid glue layer; 6. a foaming layer; 7. a back plate; 8. a sealing adhesive connecting part; 9. an ink layer.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the following detailed description, certain embodiments of the invention are shown and described, simply by way of illustration. As will be appreciated by those skilled in the art, the embodiments described herein may be modified in numerous ways without departing from the spirit or scope of the present invention.

In the drawings, the thickness of layers, films, plates, regions, etc. may be exaggerated for clarity and for better understanding and ease of description. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present.

In addition, unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising" will be understood to imply the inclusion of stated elements but not the exclusion of other elements. Further, in the specification, the word "on … …" means placed above or below the object portion, and not necessarily placed on the upper side of the object portion based on the direction of gravity.

It will be understood that, although the terms "first," "second," etc. may be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another.

As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features or components, but do not preclude the presence or addition of one or more other features or components.

It will be understood that when a layer, region or element is referred to as being "formed on" another layer, region or element, it can be directly or indirectly formed on the other layer, region or element. For example, intervening layers, regions, or components may be present.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present 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 in 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 may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1, the embodiment of the present application provides a display panel, which includes a glass substrate 1, a display panel body 2, an optical adhesive layer 3 (OCA, optically Clear Adhesive) and a curved cover plate 4 (3D CG,3D Cover glass) sequentially disposed. The glass substrate 1 is used for bearing components such as the display panel main body 2 and the like, and provides rigid support for the components, and each film structure of the display panel main body 2 is sequentially prepared by taking the glass substrate 1 as a base.

The display panel body 2 is an OLED display module including an organic layer 21 provided on a glass substrate 1, and a thin film transistor layer 22 provided on the organic layer 21, the organic layer 21 having insulating properties and being flexible, for example, a single layer formed of polyimide or a plurality of layers formed by repeatedly stacking polyimide by coating and curing. The thin film transistor layer 22 includes, but is not limited to, a buffer layer, a semiconductor, a gate electrode, a source and drain electrode layer, and the display panel body 2 further includes a polarizer, a light emitting layer, and the like. The optical adhesive layer 3 is used for attaching the curved cover plate 4 to the display panel main body 2.

Wherein, because the edge of the curved cover plate 4 has a certain curvature, and the glass substrate 1 is a rigid support, the adhesion of the curved cover plate 4 is affected. Therefore, at least part of the outer edge of the organic layer 21 exceeds the outer edge of the glass substrate 1, and the module edge after the glass substrate 1 is attached to the display panel main body 2 is the flexible organic layer 21. When the curved cover plate 4 is attached to the display panel body 2, a space for bending the outer edge of the display panel body 2 toward the glass substrate 1 is provided, so that the Hybrid OLED of the rigid screen can also be a solid curved product.

In one embodiment, the display panel may be a hyperbolic or a tetra-curved product, so that if the curved cover plate 4 is hyperbolic, the outer edges of opposite sides of the organic layer 21 of the display panel body 2 are beyond the outer edges of the glass substrate 1, and the opposite sides correspond to the curved edges of the curved cover plate 4, based on the type of the curved cover plate 4.

If the curved cover plate 4 is four-curved, the outer edges of the periphery of the organic layer 21 of the display panel main body 2 exceed the outer edges of the glass substrate 1, that is, the periphery of the module after the glass substrate 1 is attached to the display panel main body 2 is the flexible organic layer 21, and the middle area is a rigid area.

In addition, the size of the outer edge of the corresponding organic layer 21 beyond the outer edge of the glass substrate 1 is determined according to the parameters of the curved edge of the curved cover plate 4, and the outer edge of the organic layer 21 is generally 1-2mm beyond the outer edge of the glass substrate 1.

In one embodiment, as shown in fig. 2, the display panel further includes a foaming layer 6Foam and a mesh adhesive layer 5Embo. The foaming layer 6 is disposed on one side of the glass substrate 1 away from the display panel body 2, that is, the display panel body 2 and the foaming layer 6 are disposed on two opposite sides of the glass substrate 1. The grid glue layer 5 is arranged between the foaming layer 6 and the glass substrate 1, and the grid glue layer 5 is used for adhering the foaming layer 6 and the glass substrate 1.

The glass substrate 1 is a rigid substrate, provides rigid support, the display panel main body 2 is of a flexible structure, the glass substrate 1 and the display panel main body 2 are combined to form a Hybrid OLED, at least part of the outer edge of the organic layer 21 of the display panel main body 2 exceeds the outer edge of the glass substrate 1, and the curved cover plate 4 is attached to form the curved Hybrid OLED. In this embodiment, the curved cover plate 4 is bonded, the glass substrate 1 is a rigid substrate, and in order to reduce the influence of the glass substrate 1 on the curved cover plate 4, and reduce the thickness of the product, the glass substrate 1 is thinned, i.e. the glass substrate 1 with smaller thickness is selected.

Although the glass substrate 1 and the display panel body 2 are described as separate components in the present embodiment, in the actual manufacturing process, the display panel body 2 is not a module that is packaged and integrated individually, and each functional film layer in the display panel body 2 is sequentially manufactured on the glass substrate 1.

In one embodiment, the outer edge of the organic layer 21 of the display panel main body 2 exceeds the outer edge of the glass substrate 1, and a space for bending avoidance is provided for the outer edge of the display panel main body 2 when the curved surface cover plate 4 is attached, in order to avoid overlarge volumes of the grid adhesive layer 5 and the foaming layer 6 which are arranged on one side of the glass substrate 1 far away from the display panel main body 2 and influence the attachment of the curved surface cover plate 4, the outer edges of the grid adhesive layer 5 and the foaming layer 6 do not exceed the outer edge of the glass substrate 1, and the outer edge of the grid adhesive layer 5 or the foaming layer 6 is prevented from interfering with the outer edge of the organic layer 21 of the display panel main body 2 when the curved surface cover plate 4 is attached, so that the defective rate of products is improved.

In one embodiment, in order to provide a space for bending avoidance for the outer edge of the display panel body 2 when the curved cover plate 4 is attached, the outer edge of the organic layer 21 of the display panel body 2 exceeds the outer edge of the glass substrate 1, but at the same time, the outer edge of the organic layer 21 is not protected by the glass substrate 1 and is easily damaged, so, as shown in fig. 3, the display panel further includes a back plate 7 (BP), the back plate 7 is disposed at a region where the organic layer 21 of the display panel body 2 does not cover the glass substrate 1, and the back plate 7 is disposed at the same side of the display panel body 2 as the glass substrate 1, that is, the back plate 7 is disposed at the outer periphery of the glass substrate 1, and the back plate 7 and the glass substrate 1 cooperatively support the display panel body 2, and the back plate 7 provides protection for the region where the display panel body 2 does not cover the glass substrate 1, so as to avoid damaging the respective film layers of the display panel body 2.

In addition, an ink layer 9 is further disposed between the optical adhesive layer 3 and the curved cover plate 4, and the ink layer 9 is used for covering the non-display area of the display panel main body 2.

In one embodiment, the thickness direction is the stacking direction of the glass substrate 1 to the curved cover plate 4 of the display panel, and since the back plate 7 has a certain strength, in order to avoid the back plate 7 being too thick, the outer edge of the display panel body 2 is prevented from being bent when the curved cover plate 4 is attached, and thus a proper thickness of the back plate 7 needs to be set. Wherein, if the thickness of the back plate 7 is equal to or equal to the thickness of the glass substrate 1, at least part of the outer edge of the organic layer 21 of the display panel body 2 described in the above embodiment exceeds the outer edge of the glass substrate 1, the space for bending provided for the outer edge of the display panel body 2 when the curved cover plate 4 is attached is occupied by the back plate 7 provided, resulting in that the curved cover plate 4 cannot be attached or the attaching effect is poor, and thus the thickness of the back plate 7 is smaller than the thickness of the glass substrate 1, so that the back plate 7 provided reserves a sufficient bending space while providing support for the outer edge of the display panel body 2.

In one embodiment, as shown in fig. 3, a sealing adhesive connection portion 8 is disposed at the junction of the back plate 7 and the glass substrate 1, so as to perform an adhesion function and prevent moisture intrusion. The sealing adhesive connection part 8 is UV adhesive (shadowless adhesive). It should be noted that, the sealing adhesive connecting portion 8 is only required to be disposed at the junction of the back plate 7 and the glass substrate 1, so that excessive coating on the back plate 7 is avoided, and the strength of the area where the back plate 7 is disposed is excessively improved, which affects the adhesion of the curved cover plate 4.

In one embodiment, since the side of the glass substrate 1 away from the display panel main body 2 is further required to be provided with the film layers such as the grid glue layer 5 and the foaming layer 6, in order to avoid the influence of the sealing glue connection portion 8 on the manufacturing procedure thereof, the top of the sealing glue connection portion 8 does not exceed the end surface of the glass substrate 1 away from the display panel main body 2, i.e. the sealing glue connection portion 8 is not contacted with the grid glue layer 5.

In this embodiment, on the premise of ensuring the integrity of the organic layer 21 of the display panel main body 2, the outer edge of the glass substrate 1 is peeled off, the flexible organic layer 21 is arranged around after the glass substrate 1 and the display panel main body 2 are combined, and the middle area is rigid, so that the solid curved product can be realized, the material cost can be reduced, the hardness of the module can be improved, and the screen taste can be improved.

The embodiment of the application provides a manufacturing method of a display panel, which comprises the following steps:

s10, providing a glass substrate 1;

s20, preparing the display panel body 2 on the glass substrate 1, wherein the display panel body 2 comprises an organic layer 21 arranged on the glass substrate 1;

s30, removing and stripping the glass substrate 1 within a preset range of the outer edge, and completely retaining the organic layer 21;

and S40, sequentially attaching an optical adhesive layer 3 and a curved cover plate 4 on one side, away from the glass substrate 1, of the display panel main body 2.

Specifically, as shown in fig. 4, a glass substrate 1 is provided, and each functional film layer of a display panel body 2 is sequentially prepared on the glass substrate 1, the display panel body 2 includes an organic layer 21 provided on the glass substrate 1, and a thin film transistor layer 22 provided on the organic layer 21, the organic layer 21 has insulating properties and is flexible, for example, a single layer formed of polyimide or a plurality of layers formed by repeatedly stacking polyimide by coating and curing. The thin film transistor layer 22 includes, but is not limited to, a buffer layer, a semiconductor, a gate electrode, a source and drain electrode layer, and the display panel body 2 further includes a polarizer 23, a light emitting layer, and the like. It should be noted that, based on different process designs, the display panel main body 2 may be manufactured in step S20 with all the film layers being completed, then the outer edge of the glass substrate 1 may be peeled off, or may be manufactured in step S20 with part of the film layers being peeled off, then the display panel main body 2 is manufactured with part of the film layers being peeled off after the outer edge of the glass substrate 1, for example, as shown in fig. 5, the lamination of the polarizer 23 is set to a separate process, and thus the polarizer 23 is manufactured after the other film layers of the glass substrate 1 and the outer edge of the display panel main body 2 are peeled off.

After the preparation of the display panel body 2 is completed, the outer edge of the glass substrate 1 is partially cut within a predetermined range using a Laser half cut (Laser cut) process without damaging the organic layer 21 of the display panel body 2. The display panel may be a hyperbolic or a tetra-curved product, and thus, based on the type of the curved cover plate 4, if the curved cover plate 4 is a hyperbolic, the outer edges of the opposite sides of the organic layer 21 of the display panel body 2 are beyond the outer edges of the glass substrate 1, and the opposite sides correspond to the curved edges of the curved cover plate 4. If the curved cover plate 4 is four-curved, the outer edges of the periphery of the organic layer 21 of the display panel main body 2 exceed the outer edges of the glass substrate 1, that is, the periphery of the module after the glass substrate 1 is attached to the display panel main body 2 is the flexible organic layer 21, and the middle area is a rigid area. In addition, the size of the outer edge of the corresponding organic layer 21 beyond the outer edge of the glass substrate 1 is determined according to the parameters of the curved edge of the curved cover plate 4, and the outer edge of the organic layer 21 is generally 1-2mm beyond the outer edge of the glass substrate 1.

The outer edge region of the cut glass substrate 1 (i.e., the glass substrate 1 of 1-2mm at the edge) is irradiated using LLO (laser lift-off) technology, so that a portion of the outer edge preset range of the glass substrate 1 is separated from the organic layer 21 of the display panel main body 2, and then the glass substrate 1 is peeled. Then, according to the normal module process flow, the module components are bonded, for example, the curved cover plate 4 is bonded on one side of the display panel main body 2 far away from the glass substrate 1 through the optical adhesive layer 3, and the hyperbolic or quadric CG is bonded. The foam layer 6 is attached to the glass substrate 1 at a side away from the display panel main body 2 through the mesh adhesive layer 5.

The glass substrate 1 is a rigid substrate, provides rigid support, and the display panel main body 2 is of a flexible structure, and combines the glass substrate 1 and the display panel main body 2 to form a Hybrid OLED, and simultaneously cuts and peels off the outer edge of the glass substrate 1 within a certain distance range, so that a bending avoidance space is provided for the outer edge of the display panel main body 2 when the curved cover plate 4 is attached.

In addition, for the space that the outward flange of display panel main part 2 was provided to buckle and dodge when laminating curved surface apron 4, in order to avoid locating the glass substrate 1 and keep away from the volume of the net glue film 5 and the foaming layer 6 of display panel main part 2 one side too big, influence the laminating of curved surface apron 4, the outward flange of net glue film 5 and foaming layer 6 does not surpass the outward flange of glass substrate 1, avoids the outward flange of net glue film 5 or foaming layer 6 to interfere with the organic layer 21 outward flange of display panel main part 2 when laminating curved surface apron 4, leads to the product defective rate to promote.

In one embodiment, step S30, after removing and peeling the glass substrate 1 within the preset range of the outer edge and completely leaving the organic layer 21, further includes:

s60, preparing a backboard 7 on the display panel main body 2 in the area where the glass substrate 1 is peeled off;

and S70, sealing the joint of the backboard 7 and the glass substrate 1.

Specifically, as shown in fig. 6, the outer edge of the cut glass substrate 1 is irradiated using LLO technology, so that the outer edge of the preset range of the glass substrate 1 is separated from the organic layer 21 of the display panel main body 2, and then the glass substrate 1 is peeled off. In order to solve the problem of damage to the organic layer 21 and other panels caused by no rigid support protection on the outer edge of the LLO rear display panel body 2, the back plate 7 is attached to the area of the display panel body 2 where the glass substrate 1 is peeled off, i.e., the organic layer 21 of the bare display panel body 2 is attached to the back plate 7. The thickness direction is the stacking direction of the glass substrate 1 to the curved cover plate 4 of the display panel, and since the back plate 7 has a certain strength, in order to avoid the back plate 7 being too thick, the back plate 7 has a thickness smaller than the thickness of the glass substrate 1, so that the back plate 7 can provide a support for the outer edge of the display panel body 2 while keeping enough bending space, so as to prevent the outer edge of the display panel body 2 from being bent when the curved cover plate 4 is attached.

The junction of the backboard 7 and the glass substrate 1 is subjected to UV (ultraviolet) sealing to form a sealing connection part 8, so that the sealing connection part plays a role in adhesion and prevents water vapor invasion, and as the glass substrate 1 is far away from the side of the display panel main body 2, film layers such as the grid glue layer 5 and the foaming layer 6 are required to be prepared, in order to avoid the influence on the manufacturing process of the glass substrate, the top of the sealing connection part 8 does not exceed the end surface of the glass substrate 1 far away from the display panel main body 2, namely, the sealing connection part 8 is not contacted with the grid glue layer 5. According to normal module process flow, the module components are attached, the curved cover plate 4 is attached to one side, far away from the glass substrate 1, of the display panel main body 2 through the optical adhesive layer 3, and the hyperbolic or quadric CG is attached.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing has described in detail a display panel and a method for manufacturing the display panel provided in the embodiments of the present application, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, where the foregoing examples are provided to assist in understanding the method and core idea of the present invention; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present invention, the present description should not be construed as limiting the present invention in summary.

Claims

1. A display panel, comprising:

a glass substrate;

an optical adhesive layer arranged on the display panel main body;

and the curved surface cover plate is arranged on the optical adhesive layer.

2. The display panel of claim 1, wherein the outer edges of opposite sides of the organic layer extend beyond the outer edges of the glass substrate; or, the outer edges of the periphery of the organic layer exceed the outer edges of the glass substrate.

3. The display panel of claim 1, wherein the display panel further comprises:

4. The display panel of claim 3, wherein the outer edges of the mesh adhesive layer and the foam layer do not exceed the outer edge of the glass substrate.

5. The display panel of claim 1, further comprising a back plate disposed on a region of the display panel body not covered by the glass substrate, and disposed on a same side of the display panel body as the glass substrate.

6. The display panel of claim 5, wherein the back plate has a thickness less than a thickness of the glass substrate, the thickness direction being a stacking direction of the glass substrate to the curved cover plate.

7. The display panel of claim 6, wherein a sealant connection portion is provided at a junction of the back plate and the glass substrate.

8. The display panel of claim 7, wherein a top of the sealant connection does not exceed an end surface of the glass substrate remote from the display panel body.

9. A method for manufacturing a display panel, comprising:

providing a glass substrate;

10. The method for manufacturing a display panel according to claim 9, wherein the step of removing and peeling the glass substrate within a predetermined range of the outer edge to completely retain the organic layer, further comprises:

and sealing the joint of the backboard and the glass substrate.