CN108398817A - Display device and method for manufacturing the same - Google Patents

Abstract

The invention relates to a display device, which comprises at least one first display panel and at least one second display panel. Each first display panel comprises a first display part and a first non-display part. The first display part comprises a plurality of first side faces, and the first side faces comprise first joint faces. The first non-display part is positioned on at least one of the first side surfaces except the first joint surface. Each second display panel includes a second display portion and a second non-display portion. The second display part comprises a plurality of second side surfaces, and the side surfaces comprise second joint surfaces. The second non-display part is positioned on at least one of the second side surfaces except the second joint surface. The second bonding surface of the second display portion is directly bonded to the first bonding surface of the first display portion. The invention further provides a manufacturing method of the display device.

Description

Display device and manufacturing method thereof

technical field

The present invention relates to a display device and a manufacturing method thereof, in particular to a display device spliced with multiple display panels and a manufacturing method thereof.

Background technique

With the rapid development of technology, large-size display devices have been widely used in various fields, such as large-scale billboards for playing advertising films. Generally, a large-sized display device can be completed by splicing multiple displays. Most of the traditional display splicing uses a liquid crystal display module (Liquid Crystal Module) as the basic unit of splicing. Since each liquid crystal display module has a frame, it leads to relative After splicing two adjacent liquid crystal display modules, the width of the frame will increase, and the frame with too large width will affect the viewing quality of the display device. Therefore, how to improve the above problems is actually the focus of attention of relevant people in the field.

The paragraph of "Background Technology" is only used to help understand the content of the present invention, so the content disclosed in "Background Technology" may contain some known technologies that do not constitute the knowledge of those skilled in the art. In addition, the content disclosed in the "Background Technology" does not represent the content or the problems to be solved by one or more embodiments of the present invention, nor does it represent that it has been known or recognized by those skilled in the art before the application of the present invention .

Contents of the invention

The present invention provides a display device, which is used to solve the problem of poor viewing quality caused by too large frame after splicing multiple display panels.

Another aspect of the present invention provides a method for manufacturing a display device, which is used to solve the problem of poor viewing quality caused by too large frames after splicing multiple display panels.

Other purposes and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve one or part or all of the above objectives or other objectives, the present invention provides a display device, including at least one first display panel and at least one second display panel. Each first display panel includes a first display portion and a first non-display portion. The first display portion includes a plurality of first side surfaces, and the first side surfaces include a first joint surface. The first non-display portion is located on at least one of the first side surfaces outside the first joint surface. Each second display panel includes a second display portion and a second non-display portion. The second display portion includes a plurality of second side surfaces, and the side surfaces include a second joint surface. The second non-display portion is located on at least one of the second side surfaces outside the second joint surface. The second bonding surface of the second display part is directly bonded to the first bonding surface of the first display part.

Another aspect of the present invention provides a method for manufacturing a display device. The method includes the following steps: providing at least one first display panel, each first display panel includes a first display portion and a first non-display portion, and the first display portion includes a plurality of first sides, the first non-display portion surrounds these first sides; the first non-display portion located on at least one of these first sides is cut off to form a first display portion on these first sides Joint surface: providing at least one second display panel, each second display panel includes a second display portion and a second non-display portion, the second display portion includes a plurality of second side surfaces, and the second non-display portion surrounds the second side surfaces ; cutting off the second non-display portion located at least one of the second side surfaces to form a second joint surface in these second side surfaces of the second display portion; directly bonding the first joint surface of the first display portion to the first joint surface The second bonding surface of the two display parts.

In the display device according to the embodiment of the present invention, the first display portion of the first display panel has a first bonding surface, the second display portion of the second display panel has a second bonding surface, and the first bonding surface of the first display portion is directly bonded to On the second bonding surface of the second display part, that is to say, there is no non-display part (such as sealant, light-shielding part) between the first display part and the second display part. Under such a structural design, when the user When viewing the image displayed by the display device, components such as frame glue and light-shielding parts that affect the viewing quality will not be seen, effectively solving the problem of poor viewing quality caused by excessively large frames after splicing multiple display panels.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic top view of a display device according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view along line AA shown in FIG. 1 .

FIG. 3 is a schematic cross-sectional view of a display device according to another embodiment of the present invention.

FIG. 4 is a schematic top view of a display device according to another embodiment of the present invention.

FIG. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present invention.

FIG. 6 is a schematic top view of a display device according to another embodiment of the present invention.

7A to 7E are schematic flowcharts of a method for manufacturing a display device according to an embodiment of the present invention.

Detailed ways

The aforementioned and other technical content, features and effects of the present invention will be clearly presented in the following detailed description of a preferred embodiment with reference to the accompanying drawings. The directional terms mentioned in the following embodiments, such as: up, down, left, right, front or back, etc., are only referring to the directions of the drawings. Accordingly, the directional terms are used to illustrate and not to limit the invention.

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic top view of a display device according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view along line AA shown in FIG. 1 . As shown in FIGS. 1 and 2 , the display device 1 of this embodiment includes at least one first display panel 11 and at least one second display panel 12 . Each first display panel 11 includes a first display portion A1 and a first non-display portion A2. The first display portion A1 includes a plurality of first side surfaces S1, and the first side surfaces S1 include a first joint surface JS1. The first non-display portion A2 is located on at least one of the first side surfaces S1 outside the first joint surface JS1. In this embodiment, the first non-display portion A2 is, for example, at least two adjacent first on the side S1, but the present invention is not limited thereto. Each second display panel 12 includes a second display portion A3 and a second non-display portion A4. The second display portion A3 includes a plurality of second side surfaces S2, and the second side surfaces S2 include a second joint surface JS2. The second non-display portion A4 is located on at least one of the second side surfaces S2 outside the second joint surface JS2. In this embodiment, the second non-display portion A4 is, for example, at least two on the side S2, but the present invention is not limited thereto. The second bonding surface JS2 of the second display portion A3 is directly bonded to the first bonding surface JS1 of the first display portion A1. Wherein, the display parts A1 and A3 are, for example, liquid crystal display arrays, organic light emitting diode arrays, etc. in the display panels 11 and 12 for displaying an image. The non-display parts A2 and A4 respectively include frame glue and black matrix around the outside of the display part, peripheral traces and driving circuits connecting the display array in the display part, flexible printed circuit board (FPC), etc.

The detailed structure and different implementation manners of the display device 1 of this embodiment will be further described below.

As shown in FIG. 1 and FIG. 2, in this embodiment, the shape of the first display portion A1 is a first rectangle, and the first rectangle has two opposite first long sides and two opposite first short sides, The first joint surface JS1 of the first display portion A1 is one of the two first short sides of the first rectangle opposite to each other. The shape of the second display portion A3 is a second rectangle, the second rectangle has two opposite second long sides and two opposite second short sides, the second joint surface JS2 of the second display portion A3 is a second rectangle For one of the two second short sides, that is, when the first joint surface JS1 of the first display part A1 is directly joined to the second joint surface JS2 of the second display part A3, the first display part A1 One of the first short sides (that is, the first joint surface JS1) and one of the second short sides of the second display portion A3 (that is, the second joint surface JS2) are joined to each other to assemble a display device with a wider width. 1.

As shown in FIG. 2 , the first display panel 11 of this embodiment includes a first opposite substrate 111 and a first array substrate 112 disposed opposite to each other, and the first opposite substrate 111 has a first surface away from the first array substrate 112 F1, the first array substrate 112 has a second surface F2 away from the first counter substrate 111 , and the side surfaces S1 of the first display portion A1 are adjacent between the first surface F1 and the second surface F2 . The second display panel 12 includes a second opposite substrate 121 and a second array substrate 122 disposed opposite to each other. The second opposite substrate 121 has a third surface F3 away from the second array substrate 122. The second array substrate 122 has a third surface F3 away from the second array substrate 122. Two opposite to the fourth surface F4 of the substrate 121 , the second side surfaces S2 of the second display portion A3 are adjacent to the third surface F3 and the fourth surface F4 . In this embodiment, the first surface F1 of the first opposite substrate 111 and the third surface F3 of the second opposite substrate 121 are coplanar with each other, and the second surface F2 of the first array substrate 112 and the second surface F2 of the second array substrate 122 The fourth surfaces F4 are coplanar with each other.

It should be noted that, in this embodiment, the first side surfaces S1 of the first display portion A1 include the side surfaces of the first counter substrate 111 and the side surfaces of the first array substrate 112, and the first side surfaces S1 of the second display portion A3 The two sides S2 include the side of the second opposite substrate 121 and the side of the second array substrate 122 . In addition, the first opposite substrate 111 and the second opposite substrate 121 in this embodiment are, for example, color filter substrates, transparent protection plates, etc., and the first array substrate 112 and the second array substrate 122 are, for example, thin film transistor array substrates. , but the present invention is not limited thereto.

As shown in FIG. 2 , the first non-display portion A2 of this embodiment includes a first sealant 113 . The first glue frame 113 is located between the first opposite substrate 111 and the first array substrate 112 , and two ends of the first glue frame 113 are bonded to the first opposite substrate 111 and the first array substrate 112 respectively. The second non-display portion A4 of this embodiment includes a second sealant 123 . The second sealant 123 is located between the second opposite substrate 121 and the second array substrate 122 , and two ends of the second sealant 123 are bonded to the second opposite substrate 121 and the second array substrate 122 respectively. The function of the above-mentioned first sealant 113 is applied in the liquid crystal display panel, and is used to seal the liquid crystal layer (not shown in this figure) of the first display panel 11 between the first opposite substrate 111 and the first array substrate 112 Similarly, the function of the second sealant 123 is to seal the liquid crystal layer (not shown in this figure) of the second display panel 12 between the second opposite substrate 121 and the second array substrate 122 . In other embodiments, such as applied to organic light emitting display panels, the first sealant 113 is used to seal the first opposite substrate 111 and the first array substrate 112 to prevent water and oxygen in the air from entering into the organic light emitting display panel. To increase the service life of the organic light-emitting layer, similarly, the second frame glue 123 has the same effect.

As shown in FIG. 2 , the first non-display portion A2 of this embodiment further includes a first light shielding portion 114 . The first light shielding portion 114 is disposed between the first opposite substrate 111 and the first array substrate 112 , and the first light shielding portion 114 is located between the first sealant 113 and the first side surfaces S1 of the first display portion A1 . The second non-display portion A4 of this embodiment further includes a second light shielding portion 124 . The second light shielding portion 124 is disposed between the second opposite substrate 121 and the second array substrate 122 , and the second light shielding portion 124 is located between the second sealant 123 and the second side surfaces S2 of the second display portion A3 . In addition to the above-mentioned first light-shielding portion 114 and first sealant 113, the first non-display portion A2 also includes peripheral wiring (not shown) and driving circuits (not shown). A frame glue 113, surrounding traces and driving circuits are unable to allow light to penetrate, so its configuration can clearly distinguish the first display part A1 from the first non-display part A2 on the first display panel 11. Similarly, except for the above The second light-shielding part 124 and the second sealant 123, the second non-display part A4 also includes peripheral wiring (not shown) and driving circuit (not shown), etc., because the second light-shielding part 124, the second frame The adhesive 123 , the peripheral traces and the driving circuit cannot allow light to penetrate, so their configuration can clearly distinguish the second display portion A3 from the second non-display portion A4 on the second display panel 12 .

As shown in FIG. 2 , the display device 1 of this embodiment further includes a first adhesive material 13 and a second adhesive material 14 . The first adhesive material 13 is disposed above the joint where the first joint surface JS1 of the first display part A1 and the second joint surface JS2 of the second display part A3 are directly joined to each other. The second adhesive material 14 is disposed below the joint where the first joint surface JS1 of the first display part A1 and the second joint surface JS2 of the second display part A3 are directly joined to each other. In this embodiment, the first adhesive material 13 is, for example, disposed on a portion of the first surface F1 of the first opposing substrate 111 and a portion of the third surface F3 of the second opposing substrate 121, that is, the first surface F1 and the second Around the junction of the three surfaces F3, the second adhesive material 14 is, for example, disposed on part of the second surface F2 of the first array substrate 112 and part of the fourth surface F4 of the second array substrate 122, that is, the second surface F2 and the second surface F2. The periphery of the junction of the four surfaces F4, but the present invention is not limited thereto. In other embodiments, the first adhesive material 13 is, for example, disposed on the entire first surface F1 of the first opposing substrate 111 and the second opposing substrate. On the entire third surface F3 of 121 , the second adhesive material 14 is, for example, disposed on the entire second surface F2 of the first array substrate 112 and the entire fourth surface F4 of the second array substrate 122 . In this embodiment, the first adhesive material 13 and the second adhesive material 14 are, for example, thermosetting adhesive or ultraviolet curing adhesive, but the present invention is not limited thereto. In other embodiments, the first adhesive material 13 and the The second adhesive material 14 includes, for example, a base material and an adhesive layer disposed on the base material. It should be noted that, in the case that the first display panel 11 and the second display panel 12 can be fixed to each other, the present invention does not limit the types of the first adhesive material 13 and the second adhesive material 14 .

It should be noted that the arrangement of the above-mentioned first adhesive material 13 and second adhesive material 14 is only one of the embodiments of the present invention, and the present invention is not limited thereto. The first adhesive material 13 is arranged above the joint where the first joint surface JS1 of the first display part A1 and the second joint surface JS2 of the second display part A3 are directly joined to each other or on the first joint surface JS1 and the second joint surface JS2 of the first display part A1. The second adhesive material 14 may be arranged below the junction where the second junction surfaces JS2 of the second display portion A3 are directly joined to each other.

As shown in FIG. 2 , the display device 1 of this embodiment further includes a backlight module 15 . The first display panel 11 and the second display panel 12 are disposed on the backlight module 15 . The backlight module 15 is mainly used to provide a light source with sufficient brightness and uniform distribution, so that the first display panel 11 and the second display surface 12 can normally display images. The detailed structure of the backlight module 15 is not the focus of the present invention, so it will not be described in detail. In addition, the display device 1 of this embodiment further includes an outer frame 16, the above-mentioned first display panel 11, second display panel 12 and backlight module 15 are disposed on the outer frame 16, specifically, the outer frame 16 has an accommodating space , the first display panel 11 , the second display panel 12 and the backlight module 15 are disposed in the accommodation space of the outer frame 16 , but the present invention does not limit the structure of the outer frame 16 .

Please refer to FIG. 3 , which is a schematic cross-sectional view of a display device according to another embodiment of the present invention. As shown in FIG. 3, the display device 1a of this embodiment is similar to the display device 1 shown in FIG. 1 and FIG. Two display panels 12 , the first display portion A1 of the first display panel 11 includes a third light shielding portion 134 , and the second display portion A3 of the second display panel 12 includes a fourth light shielding portion 144 . Specifically, the third light shielding portion 134 is located between the first opposing substrate 111 and the first array substrate 112 , and the third light shielding portion 134 is located on the first bonding surface JS1 , and the fourth light shielding portion 144 is located on the second opposing substrate 121 Between the second array substrate 122 and the fourth light shielding portion 144 is located on the second bonding surface JS2. It is worth mentioning that the third light shielding portion 134 located in the first display portion A1 is, for example, connected to the first light shielding portion 114 located in the first non-display portion A2. Similarly, the fourth light shielding portion 134 located in the second display portion A3 The light shielding portion 144 is, for example, connected to the second light shielding portion 124 located in the second non-display portion A4, but the present invention is not limited thereto. In other embodiments, between the third light shielding portion 134 and the first light shielding portion 114, for example If it is not connected, for example, the fourth light shielding portion 144 and the second light shielding portion 124 are not connected.

Please refer to FIG. 4 , which is a schematic top view of a display device according to another embodiment of the present invention. As shown in FIG. 4, the display device 1b of this embodiment is similar to the display device 1 shown in FIGS. The surface JS1 is one of the two opposite first long sides of the first rectangle, and the second joint surface JS2 of the second display portion A3 of the second display panel 12 is one of the two opposite second long sides of the second rectangle. One, that is, when the first joint surface JS1 of the first display portion A1 is directly bonded to the second joint surface JS2 of the second display portion 121, one of the first long sides (also the first long side) of the first display portion A1 That is, the first joint surface JS1 ) is joined with one of the second long sides of the second display portion A3 (that is, the second joint surface JS2 ) to assemble a longer display device 1b.

Please refer to FIG. 5 , which is a schematic cross-sectional view of a display device according to another embodiment of the present invention. As shown in FIG. 5, the display device 1c of this embodiment is similar to the display device 1 shown in FIG. 1 and FIG. The surface F1 and the fourth surface F4 of the second array substrate 122 are coplanar with each other, and the second surface F2 of the first array substrate 112 and the third surface F3 of the second counter substrate 121 are coplanar with each other, that is, in the first When the first joint surface JS1 of the display unit A1 and the second joint surface JS2 of the second display unit A3 are directly joined to each other, the second display panel 12 is rotated by 180 degrees relative to the first display panel 11 .

Please refer to FIG. 6 , which is a schematic top view of a display device according to another embodiment of the present invention. The display device 1 d of this embodiment is similar to the display device 1 shown in FIGS. 1 and 2 , the difference lies in that the display device 1 d of this embodiment is formed by splicing four display panels. As shown in FIG. 6 , the number of first display panels 11 in this embodiment is, for example, two, and the number of second display panels 12 is, for example, two. One side S1 further includes a third joint surface JS3 adjacent to the first joint surface JS1, and these second side surfaces S2 of the second display portion A3 of each second display panel 12 further include a fourth joint surface JS2 adjacent to the second joint surface JS2. Joint surface JS4. In this embodiment, the first joint surfaces JS1 of the first display portions A1 of the first display panels 11 are respectively directly bonded to the second joint surfaces JS2 of the second display portions A3 of the second display panels 12, and these The third joint surface JS3 of the first display part A1 is respectively directly bonded to the fourth joint surfaces JS4 of the second display part A3 . It is worth mentioning that, in order to enable the first joint surfaces JS1 to be directly bonded to the second joint surfaces JS2 and the third joint surfaces JS3 to be directly bonded to the fourth joint surfaces JS4, the second display panels 12 are opposite to the first joint surfaces. A display panel 11 is rotated by 180 degrees, so that the spliced display device 1d, the first non-display parts A2 of the first display panels 11 and the second non-display parts A4 of the second display panels 12 can be located at at the periphery of the display device 1d.

Please refer to FIG. 7A to FIG. 7E , which are schematic flowcharts of a method for manufacturing a display device according to an embodiment of the present invention. The display device manufacturing method of this embodiment includes the following steps:

First, as shown in FIG. 7A, at least one first display panel 11 is provided, each first display panel 11 includes a first display portion A1 and a first non-display portion A2, and the first display portion A1 includes a plurality of first side surfaces S1, And the first non-display portion A2 surrounds the first side surfaces S1.

Next, as shown in FIG. 7B , the first non-display portion A2 located on at least one of the first side surfaces S1 is cut off to form a first joint surface JS1 in the first side surfaces S1 of the first display portion A1 .

Next, as shown in FIG. 7C , at least one second display panel 12 is provided, each second display panel 12 includes a second display portion A3 and a second non-display portion A4, the second display portion A2 includes a plurality of second side surfaces S2, And the second non-display portion A4 surrounds the second side surfaces S2.

Next, as shown in FIG. 7D , the second non-display portion A4 located on at least one of the second side surfaces S2 is cut off to form a second joint surface JS2 in the second side surfaces S2 of the second display portion A3 .

Next, as shown in FIG. 7E , the first bonding surface JS1 of the first display portion A1 of the first display panel 11 is directly bonded to the second bonding surface JS2 of the second display portion A3 of the second display panel 12 . Specifically, after the first joint surface JS1 of the first display portion A1 is bonded to the second joint surface JS2 of the second display portion A3, an adhesive material such as thermosetting adhesive or ultraviolet light curing adhesive (such as the above-mentioned The first adhesive material 13 and the second adhesive material 14) cover the junction of the first joint surface JS1 and the second joint surface JS2 to directly join the first joint surface JS1 to the second joint surface JS2. In this embodiment, the glue The material covers, for example, above and below the junction of the first joint surface JS1 and the second joint surface JS2 respectively.

It is worth mentioning that, in the above-mentioned steps in FIG. 7B and FIG. 7D , the first non-display portion A2 located on at least one of the first side surfaces S1 of the first display portion A1 is completely cut off and the second non-display portion A2 located on the second The second non-display portion A4 of at least one of the second side surfaces S2 of the display portion A3 is completely cut off, but the present invention is not limited thereto. In other embodiments, the first display panel 11 may only cut The first sealant 113 of at least one of the first non-display parts A2 of one side S1 retains the first light shielding part 114, so that the first light shielding part 114 is located on the first joint surface JS1. Similarly, the second display panel 12 can Only the second sealant 123 of the second non-display portion A4 on at least one of the second side surfaces S2 is cut off and the second light shielding portion 124 is retained, so that the second light shielding portion 124 is located on the second joint surface JS2. In this embodiment In FIG. 3 , the structure after the first bonding surface JS1 of the first display portion A1 is bonded to the second bonding surface JS2 of the second display portion A32 is shown in FIG. 3 .

It is worth mentioning that, in the above-mentioned steps in FIG. 7B and FIG. 7D , the first non-display portion A2 located on at least one of the first side surfaces S1 of the first display portion A1 is cut away to form the first joint surface JS1 and Cutting off the second non-display portion A4 on at least one of the second side surfaces S2 of the second display portion A3 to form the second joint surface JS2 is respectively carried out in a low-temperature freezing environment, the purpose of which is to freeze the opposing substrate and the array. The liquid crystal layer between the substrates is used to prevent the liquid crystal layer from leaking out from between the substrates after the first non-display portion A2 or the second non-display portion A4 is removed. In this embodiment, the way to form a low-temperature freezing environment is, for example, to spray liquid nitrogen along the cutting route in advance during the process of cutting the first non-display part A2 or the second non-display part A4, so that the liquid crystal adjacent to the part to be cut The layer is in a cryogenically frozen state, but the invention is not limited thereto.

It is worth mentioning that, in the above-mentioned steps in FIG. 7E , in other embodiments, for example, the first bonding surface JS1 of the first display portion A1 is directly bonded to the second display portion A3 by means of laser welding or high-temperature welding. The second joint surface JS2.

To sum up, in the display device according to the embodiment of the present invention, the first display portion of the first display panel has a first bonding surface, the second display portion of the second display panel has a second bonding surface, and the first display portion of the first display portion has a second bonding surface. One bonding surface is directly bonded to the second bonding surface of the second display part, that is to say, there is no non-display part (such as sealant, light-shielding part) between the first display part and the second display part. Next, when the user watches the image displayed on the display device, he will not see components that affect the viewing quality, such as frame glue, light-shielding parts, etc., effectively solving the problem of poor viewing quality caused by too large borders after multiple display panels are spliced. question.

The above description is only a preferred embodiment of the present invention, when the scope of implementation of the present invention cannot be limited with this, that is, all simple equivalent changes and modifications made according to the claims of the present invention and the content of the description of the invention still belong to the present invention covered by the patent. In addition, any embodiment or claim of the present invention does not need to achieve all the objects or advantages or features disclosed in the present invention. In addition, the abstract and the title of the invention are only used to assist in the search of patent documents, and are not used to limit the scope of rights of the present invention. In addition, terms such as "first" and "second" mentioned in the specification or claims are only used to name elements or to distinguish different embodiments or ranges, and are not used to limit the upper limit of the number of elements. or lower limit.

Explanation of reference signs

1, 1a, 1b, 1c, 1d: display device

11: The first display panel

12: Second display panel

13: The first glue material

14: Second rubber material

15: Backlight module

16: Outer frame

111: first counter substrate

112: first array substrate

113: First frame glue

114: The first shading part

121: Second opposing substrate

122: second array substrate

123: Second frame glue

124: Second shading part

134: The third shading part

144: The fourth shading part

A1: The first display part

A2: The first non-display part

A3: Second display part

A4: The second non-display part

F1: first surface

F2: second surface

F3: third surface

F4: fourth surface

JS1: first joint surface

JS2: Second joint surface

JS3: Third joint surface

JS4: fourth joint surface

S1: first side

S2: second side

Claims (22)

1. A display device, characterized in that, comprising: At least one first display panel, each of the at least one first display panel includes a first display portion and a first non-display portion, the first display portion includes a plurality of first sides, and the plurality of first sides include a first joint surface, the first non-display portion is located on at least one of the plurality of first side surfaces outside the first joint surface; and At least one second display panel, each of the at least one second display panel includes a second display portion and a second non-display portion, the second display portion includes a plurality of second sides, and the plurality of second sides include a second joint surface, the second non-display portion is located on at least one of the plurality of second side surfaces outside the second joint surface, Wherein the second bonding surface of the second display part is directly bonded to the first bonding surface of the first display part. 2. The display device according to claim 1, wherein the shape of the first display portion is a first rectangle, the first joint surface is a first long side of the first rectangle, and the first The shape of the two display parts is a second rectangle, the second joint surface is the second long side of the second rectangle, and the second long side of the second rectangle is connected to the second long side of the first rectangle. first long side. 3. The display device according to claim 1, wherein the shape of the first display portion is a first rectangle, the first bonding surface is a first short side of the first rectangle, and the first The shape of the two display parts is a second rectangle, the second joint surface is the second short side of the second rectangle, and the second short side of the second rectangle is connected to the second short side of the first rectangle. First short side. 4. The display device according to claim 1, wherein the first display panel comprises a first opposing substrate and a first array substrate disposed opposite to each other, and the first opposing substrate has a A first surface of an array substrate, the first array substrate has a second surface far away from the first counter substrate, the plurality of first side surfaces of the first display part are adjacent to the first surface and Between the second surfaces, the second display panel includes a second opposite substrate and a second array substrate disposed opposite to each other, the second opposite substrate has a third surface away from the second array substrate, The second array substrate has a fourth surface away from the second opposite substrate, and the plurality of second side surfaces of the second display part are adjacent to the third surface and the fourth surface. 5. The display device according to claim 4, wherein the first surface of the first opposite substrate and the third surface of the second opposite substrate are coplanar with each other, and the first The second surface of an array substrate and the fourth surface of the second array substrate are coplanar with each other. 6. The display device according to claim 4, wherein the first surface of the first opposing substrate and the fourth surface of the second array substrate are coplanar with each other, and the first The second surface of the array substrate and the third surface of the second opposite substrate are coplanar with each other. 7. The display device according to claim 4, further comprising a first adhesive material and a second adhesive material, the first adhesive material being arranged on the first bonding surface and the second adhesive material. Above the joint of the two joint surfaces, the second adhesive material is disposed below the joint of the first joint surface and the second joint surface. 8. The display device according to claim 4, wherein the plurality of first side surfaces of the first display portion further include a third joint surface adjacent to the first joint surface, and the second joint surface The multiple second side surfaces of the display portion further include a fourth joint surface adjacent to the second joint surface, the number of the at least one first display panel is two, and the number of the at least one second display panel is There are two, the first bonding surface of the first display portion of the first display panel is respectively directly bonded to the second bonding surface of the second display portion of the second display panel, so The third bonding surfaces of the first display portion are respectively directly bonded to the fourth bonding surfaces of the second display portion. 9. The display device according to claim 4, wherein the first non-display portion comprises a first sealant, and the first sealant is located between the first opposite substrate and the first array substrate. The two ends of the first sealant are respectively bonded to the first opposite substrate and the first array substrate, the second non-display part includes a second sealant, and the second sealant is located on the Between the second opposite substrate and the second array substrate and both ends of the second sealant are respectively bonded to the second opposite substrate and the second array substrate. 10. The display device according to claim 9, wherein the first non-display portion further comprises a first light-shielding portion, and the first light-shielding portion is arranged between the first opposite substrate and the first Between the array substrates and between the first sealant and the first side, the second non-display portion further includes a second light shielding portion configured on the second opposite substrate between the second array substrate and between the second sealant and the second side. 11. The display device according to claim 9, wherein the first display part further comprises a third light-shielding part, and the third light-shielding part is arranged between the first opposite substrate and the first array. Between the substrates and located on the first bonding surface, the second display part further includes a fourth light shielding part, the fourth light shielding part is arranged between the second opposite substrate and the second array substrate and on the second joint surface. 12. The display device according to claim 1, further comprising a first glue material, the first glue material is arranged at the junction of the first joint surface and the second joint surface at the top. 13. The display device according to claim 1, further comprising a backlight module, the at least one first display panel and the at least one second display panel are disposed on the backlight module. 14. A manufacturing method of a display device, characterized in that the manufacturing method comprises the following steps: At least one first display panel is provided, each of the at least one first display panel includes a first display portion and a first non-display portion, the first display portion includes a plurality of first sides, and the first non-display portion surrounds on the plurality of first sides; cutting off the first non-display portion located on at least one of the plurality of first side surfaces to form a first bonding surface in the plurality of first side surfaces of the first display portion; At least one second display panel is provided, each of the at least one second display panel includes a second display portion and a second non-display portion, the second display portion includes a plurality of second side surfaces, and the second non-display portion surrounds on the plurality of second sides; cutting off the second non-display portion on at least one of the plurality of second side surfaces to form a second bonding surface in the plurality of second side surfaces of the second display portion; and The first bonding surface of the first display portion is directly bonded to the second bonding surface of the second display portion. 15. The method for manufacturing a display device according to claim 14, wherein the first non-display portion comprises a first sealant, and the second non-display portion comprises a second sealant. 16. The method for manufacturing a display device according to claim 15, wherein the first non-display portion further comprises a first light-shielding portion, and the first light-shielding portion is located between the first sealant and the first light-shielding portion. Between the side surfaces, the second non-display portion includes a second light-shielding portion, and the second light-shielding portion is located between the second sealant and the second side surface. 17. The manufacturing method of a display device according to claim 15, wherein the first display part further comprises a third light-shielding part, the third light-shielding part is located on the first bonding surface, and the second display part The part further includes a fourth light-shielding part, and the fourth light-shielding part is located on the second bonding surface. 18. The method of manufacturing a display device according to claim 14, wherein the first non-display portion located on at least one of the plurality of first side surfaces is cut off to replace all the first display portions. The step of forming the first bonding surface among the plurality of first side surfaces and cutting off the second non-display portion located on at least one of the plurality of second side surfaces so as to match the second display portion The step of forming the second bonding surface on the plurality of second side surfaces is respectively carried out in a low-temperature freezing environment. 19. The method of manufacturing a display device according to claim 14, wherein the step of directly bonding the first bonding surface of the first display portion to the second bonding surface of the second display portion The first bonding surface of the first display part is directly bonded to the second bonding surface of the second display part by means of laser welding or high temperature welding. 20. The method of manufacturing a display device according to claim 14, wherein the step of directly bonding the first bonding surface of the first display portion to the second bonding surface of the second display portion Include the following steps: Provide glue; directly bonding the first bonding surface of the first display portion to the second bonding surface of the second display portion; and Covering the adhesive material on the junction of the first joint surface and the second joint surface to directly join the first joint surface to the second joint surface. 21. The method for manufacturing a display device according to claim 20, wherein the glue material comprises thermosetting glue or ultraviolet light curing glue. 22 . The manufacturing method of a display device according to claim 20 , wherein the adhesive material comprises a base material and an adhesive layer disposed on the base material.