CN112799245B

CN112799245B - Display device and preparation method thereof

Info

Publication number: CN112799245B
Application number: CN201911115170.3A
Authority: CN
Inventors: 臧远生; 李慧子; 王春
Original assignee: BOE Technology Group Co Ltd; Hefei BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Hefei BOE Optoelectronics Technology Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2024-04-05
Anticipated expiration: 2039-11-14
Also published as: CN112799245A

Abstract

The invention discloses a display device and a preparation method of the display device. The display device includes a first substrate and a second substrate disposed opposite to the case, at least one of the first substrate and the second substrate employing a flexible base. According to the display device provided by the embodiment of the invention, at least one of the first substrate and the second substrate adopts the flexible substrate, so that the thickness and the weight of the display device can be reduced, and the light and thin display device can be realized. When the first substrate is a flexible substrate, the first binding area of the first substrate can be bent towards the direction deviating from the second substrate, so that the first control module is hidden on one side of the second substrate facing the first substrate, the frame size of the display device is effectively reduced, and the display device is facilitated to be narrow in frame and frame-free.

Description

Display device and preparation method thereof

Technical Field

The invention relates to the technical field of display, in particular to a display device and a preparation method of the display device.

Background

With the improvement of living standard, people have higher requirements on electronic products, and not only the performance of the products, but also the weight and the appearance of the products are gradually concerned. The thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, TFT-LCD) has the advantages of small volume, low power consumption, no radiation and the like, and becomes the main body of various electronic products. In order to respond to market demands, narrow-frame and full-screen liquid crystal displays rapidly develop into market mainstream, and various large liquid crystal display manufacturers begin full-screen development in a dispute.

In the prior art, the problems of wide frame, large thickness and heavy weight of the liquid crystal display exist, and the further development of the liquid crystal display is seriously influenced.

Disclosure of Invention

An object of an embodiment of the present invention is to provide a display device and a manufacturing method of the display device to reduce the thickness and weight of the display device.

In order to solve the technical problem, an embodiment of the present invention provides a display device, including a first panel, where the first panel includes a first substrate and a second substrate disposed opposite to each other, and at least one of the first substrate and the second substrate adopts a flexible substrate.

Optionally, the first substrate adopts the flexible basement, display device includes the display area and is located the frame district outside the display area, first substrate has first binding area in the frame district, first binding area binds and is connected with first control module, first binding area of first substrate is towards deviating from the direction of second substrate is buckled, makes first control module is hidden the second substrate towards one side of first substrate.

Optionally, the first panel further includes a first polarizer disposed on a side of the first substrate facing away from the second substrate, and a second polarizer disposed on a side of the second substrate facing away from the first substrate, and the display device further includes a backlight unit disposed on a side of the first panel facing toward the first substrate.

Optionally, the second polarizer includes a 6H polarizer or a 9H polarizer, and the display device further includes a back plate, where the back plate is disposed on a side of the backlight unit facing away from the first panel, and the second polarizer forms an outer surface of a light emitting side of the display device.

Optionally, the display device further includes a second panel, the second panel sets up the orientation of first panel one side of first base plate, the second panel includes third base plate and the fourth base plate to the box setting, the fourth base plate orientation first base plate, the third base plate adopts the flexible base, the third base plate has the second in the frame district and binds the region, the second binds the region and binds and be connected with the second control module, the second of third base plate binds the region orientation and deviates from the direction bending of fourth base plate, makes the second control module is hidden the fourth base plate orientation one side of third base plate.

Optionally, the second substrate or/and the fourth substrate adopts a flexible substrate.

Optionally, the first panel includes a display panel, the second panel includes a regional dimming panel, the second panel is provided with a plurality of dimming units, and a plurality of dimming units are in one-to-one correspondence with the pixel units of the first panel, and the dimming units are used for adjusting the brightness of light entering the corresponding pixel units.

Optionally, the first panel further includes a first polarizer disposed on a side of the first substrate facing away from the second substrate, and a second polarizer disposed on a side of the second substrate facing away from the first substrate, the second panel further includes a third polarizer disposed on a side of the third substrate facing away from the fourth substrate, and the first polarizer, the second polarizer, and the third polarizer each include a 6H polarizer or a 9H polarizer.

In order to solve the above technical problem, an embodiment of the present invention further provides a method for manufacturing a display device, including:

preparing a first substrate and a second substrate, wherein preparing the first substrate comprises forming a flexible base on a rigid substrate; preparing a control structure layer on the flexible substrate; forming an orientation layer on the control structure layer, wherein the first substrate is provided with a first binding area;

pairing the first substrate and the second substrate;

peeling at least a portion of the rigid substrate corresponding to the first binding region from the first substrate;

binding and connecting a first control module to the binding area;

and bending the first binding area of the first substrate towards the direction away from the second substrate, so that the first control module is hidden at one side of the second substrate towards the first substrate.

Alternatively, the process may be carried out in a single-stage,

before the first control module is bound and connected to the first binding area, the preparation method further comprises the following steps: attaching a first polaroid to one side of the first substrate, which is away from the second substrate, and attaching a second polaroid to one side of the second substrate, which is away from the first substrate;

before bending the first binding region toward a direction away from the second substrate, the preparation method further includes: and assembling a backlight unit on one side of the first polarizer, which is away from the first substrate.

Optionally, the preparation method further comprises,

and assembling a backboard on one side of the backlight unit, which is far away from the first substrate, so that the second polaroid forms the outer surface of the light emitting side of the display device, wherein the second polaroid comprises a 6H polaroid or a 9H polaroid.

preparing a first panel and a second panel, wherein the first panel comprises a first substrate and a second substrate which are arranged in a box, the second panel comprises a third substrate and a fourth substrate which are arranged in a box, the first substrate and the third substrate are flexible substrates, the first substrate is provided with a first binding area, the first binding area is bound and connected with a first control module, the third substrate is provided with a second binding area, and the second binding area is bound and connected with a second control module;

Attaching the first panel and the second panel such that the fourth substrate faces the first substrate;

bending the first binding region towards the direction deviating from the second substrate, so that the first control module is hidden at one side of the second substrate towards the first substrate, and bending the second binding region towards the direction deviating from the fourth substrate, so that the second control module is hidden at one side of the fourth substrate towards the third substrate.

According to the display device provided by the embodiment of the invention, at least one of the first substrate and the second substrate adopts the flexible substrate, so that the thickness and the weight of the display device can be reduced, and the light and thin display device can be realized.

According to the display device provided by the embodiment of the invention, the first substrate is the flexible substrate, and the flexible substrate has flexibility and bending resistance, so that the first binding area of the first substrate can be bent towards the direction away from the second substrate, and the first control module is hidden at one side of the second substrate towards the first substrate. The structure is characterized in that the area where the chip, the flexible circuit board and the printed circuit board module are located does not occupy the dimension in the direction parallel to the second substrate, but is hidden at the lower side of the second substrate, so that the frame of the display device caused by the chip, the flexible circuit board and the printed circuit board module is prevented from being increased, the size of the lower frame of the display device is effectively reduced, and the narrow frame and the frame-free display device are facilitated to be realized. In addition, according to the display device provided by the embodiment of the invention, the first substrate adopts the flexible substrate, glass is not used as the substrate any more, the weight and the thickness of the display device are reduced, and the light and thin display device is facilitated to be realized.

The double-sided board display device provided by the embodiment of the invention effectively reduces the thickness and the weight of the double-sided board display device, easily realizes extremely ultrathin effect, effectively solves the defects of excessive thickness and excessive weight of the double-sided board display device, and in addition, effectively reduces the size of the lower frame of the display device, is beneficial to realizing the narrow frame and no frame of the display device, and greatly improves the application value and market competitiveness of the double-sided board display device.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate and do not limit the invention.

FIG. 1 is a schematic plan view of a display device;

FIG. 2 is a schematic diagram of a B-B structure of the display device shown in FIG. 1 in one embodiment;

FIG. 3 is a schematic view of a B-B structure of the display device shown in FIG. 1 in another embodiment;

FIG. 4 is a schematic diagram of a dual panel display device;

FIG. 5 is a schematic diagram of a display device according to a first embodiment of the present invention;

FIG. 6 is a schematic diagram of a display device according to a second embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating a structure of another frame area of a display device according to a second embodiment of the present invention;

FIG. 8 is a schematic diagram of a first substrate and a second substrate in a display device after alignment;

FIG. 9 is a schematic diagram showing a structure of the display device after the hard substrate is peeled off from the first substrate;

FIG. 10 is a schematic diagram of a display device with a first polarizer and a second polarizer attached;

FIG. 11 is a schematic diagram of a display device according to a fourth embodiment of the present invention;

FIG. 12 is a schematic diagram of a display device according to another embodiment of the invention;

FIG. 13 is a schematic diagram of a display device according to another embodiment of the invention;

fig. 14 is a schematic diagram of a structure of a dual panel display device.

Reference numerals illustrate:

10-a first panel; 11-a first substrate; 12-a second substrate;

13-a first liquid crystal layer; 20-a second panel; 21-a third substrate;

22-a fourth substrate; 23-a second liquid crystal layer; 41-a first control module;

42-a second control module; 51—a first polarizer; 52-a second polarizer;

53-a third polarizer; 60-a backlight unit; 71-a back plate;

81, soaking cotton; 82-adhesive tape; 91-a flexible circuit board;

92-chip; 93-a printed wiring board module.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.

Fig. 1 is a schematic plan view of a display device. The display device is an LCD display device, as shown in fig. 1, having an upper (Up) frame, a lower (Down) frame, a Left (Left) frame, and a Right (Right) frame. Along with the development of technology, the upper, left and right frames can be made into a narrow frame or even a frame-free frame, but the lower frame is made into a narrow frame or even a frame-free frame, and certain difficulties still exist.

FIG. 2 is a schematic diagram of a B-B structure of the display device shown in FIG. 1 in one embodiment. As shown in fig. 2, the display device includes a first substrate 11 (typically an array substrate) and a second substrate 12 (typically a color film substrate) disposed opposite to the first substrate. The display device further includes a first polarizer 51 disposed at the lower side of the first substrate 11, a backlight unit 60 disposed at the lower side of the first polarizer 51, a back plate 71 disposed at the lower side of the backlight unit 60, a second polarizer 52 disposed at the upper side of the second substrate 12, and a cover plate 72 disposed at the upper side of the second polarizer 52. An accommodating space is formed between the back plate 71 and the cover plate 72, and the first substrate 11, the second substrate 12, the first polarizer 51, the second polarizer 52, and the backlight unit 60 are all located in the accommodating space. Typically, the cover 72 side is the light exit side. Also shown in FIG. 2 are foam 81 located within back sheet 71, and tape 82 located between cover sheet 72 and second polarizer 52. In actual practice, the tape 82 may not be provided.

As shown in fig. 2, in order to bond the flexible wiring board (Flexible printed circuit, FPC) 91 and the chip (IC) 92, the first substrate 11 protrudes from the second substrate 12 at the lower frame area so as to form a bonding area for connecting the flexible wiring board 91 and the chip 92. The binding area is bound and connected with a chip 92 and a flexible circuit board 91, and the flexible circuit board is connected with a printed circuit board module (Printed Circuit Board Assembly, PCBA) 93. In general, the substrates of the first substrate 11 and the second substrate 12 are glass, and the rigid structure of the glass determines that the first substrate 11 cannot be bent, and the placement area of the chip 92, the flexible circuit board 91 and the printed circuit board module 93 occupies a position parallel to the first substrate, which eventually results in that the lower frame of the display device shown in fig. 2 cannot be effectively reduced, and cannot realize a narrow frame of the lower frame.

FIG. 3 is a schematic diagram of a B-B structure of the display device shown in FIG. 1 in another embodiment. Unlike the display device shown in fig. 2, in the display device shown in fig. 3, the first substrate 11 is reversed, that is, the first substrate 11 and the second substrate 12 are positioned opposite each other, and the first substrate 11 faces the light emitting side. In the display device shown in fig. 3, in order to further save costs, the second polarizer 52 may be a 6H polarizer or a 9H polarizer (it is easy to understand that the 6H polarizer is a polarizer with a hardness of 6H and the 9H polarizer is a polarizer with a hardness of 9H), so that the cover plate 72 in fig. 2 may be omitted, thereby achieving the purpose of saving costs. Meanwhile, the flexible circuit board 91 and the printed circuit board module 93 are bent towards the backlight unit 60, so that the occupied size of the flexible circuit board 91 and the printed circuit board module 93 in the width direction is reduced, the width of the lower frame of the display device can be reduced, and the narrow frame design of the lower frame is facilitated.

In the display device shown in fig. 3, although the width of the lower frame can be reduced to a certain extent compared with fig. 2, the binding area of the first substrate still protrudes from the second substrate, and occupies a dimension parallel to the second substrate. Meanwhile, the first substrate 11 (array substrate) is reversely arranged, and a plurality of metal wires are arranged on the first substrate 11, so that metal reflection can be caused by the metal wires in the display process, the reflectivity reaches more than 10%, and the visual effect of the display device is extremely poor. In order to improve the light reflection of the first substrate 11, a low reflection design is required, so that a MoOx material needs to be developed. Therefore, the process difficulty and the production cost of the display device are increased, the reflectivity is only improved to about 5%, the display effect of the display device shown in fig. 2 cannot be achieved, and the picture quality of the display device is affected.

In addition, with the continuous development of LCD technology, LCD technology encounters a bottleneck such as a Contrast Ratio (CR) problem. The contrast ratio of LCD display devices is too low relative to the million-level contrast ratio of organic light emitting diode (Organic Light Emitting Diode, OLED) display devices and Mini LED display devices. To improve the problem of the low CR of LCD display devices, which affects the visual perception, a dual panel technology has been developed.

Fig. 4 is a schematic structural diagram of a dual panel display device. As shown in fig. 4, the display device includes a first panel 10 and a second panel 20 which are stacked. The first panel 10 is typically a display panel and the second panel 20 is typically a local dimming panel. The first panel 10 includes a first substrate 11 (typically an array substrate) and a second substrate 12 (typically a color film substrate) disposed opposite to each other, and a first liquid crystal layer 13 between the first substrate 11 and the second substrate 12. The first panel 10 further comprises a first polarizer 51 arranged on the side of the first substrate 11 facing away from the second substrate 12, and a second polarizer 52 arranged on the side of the second substrate 12 facing away from the first substrate 11. The second panel 20 includes a third substrate 21 (typically an array substrate) and a fourth substrate 22 arranged in a pair of cells, and a second liquid crystal layer 23 between the third substrate 21 and the fourth substrate 22. The second panel is typically a local dimming panel, and thus the fourth substrate 22 is typically a color film substrate, but since the second panel is not used for displaying color, the fourth substrate 22 may not be provided with a color film. The second panel 20 further comprises a third polarizer 53 arranged on the side of the third substrate 21 facing away from the fourth substrate 22. The fourth substrate 22 is disposed toward the first substrate 11. The display device further comprises a backlight unit 60, the backlight unit 60 being arranged at a side of the second panel 20 facing away from the first panel 10. It is understood by those skilled in the art that the backlight unit 60 may include a lamp housing, a backlight, a reflection plate, a light guide plate, a diffusion plate, etc., which convert light emitted from the backlight into a uniform brightness surface light source, so that light emitted from the backlight unit 60 toward the second panel 20 is a uniform brightness surface light source. The dual panel display device subjects the light of the backlight unit 60 to a double layer of liquid crystal modulation before reaching the eyes of the user, improving the contrast of the display device. In fig. 4, the first substrate 11, the second substrate 12, the third substrate 21 and the fourth substrate 22 all use glass as a base, which results in that the thickness and the weight of the display device shown in fig. 4 are doubled as compared with those of the single panel display device, and the development of the double panel display device is seriously affected. In a display device having a structure as shown in fig. 4, the thickness of the display device is 1.1mm (0.5mm+0.6mm) and the thickness of the backlight unit 60 are added, and such thickness seriously affects the development of the double-sided board display device.

It is easy to understand that the display device shown in fig. 4 has a frame area, and the first substrate 11 has a first binding area in the frame area, and the first binding area is connected to the first control module 41 in a binding manner. The first control module may include a chip, a flexible circuit board, a printed circuit board module, and the like. The third substrate 21 has a second binding area in the frame area, and the second binding area is connected to the second control module 42 in a binding manner. The second control module 42 may include a chip, a flexible circuit board, a printed circuit board module, and the like.

In order to solve the problems of large thickness and heavy weight of a display device, the embodiment of the invention provides the display device. The display device provided by the embodiment of the invention comprises a first panel, wherein the first panel comprises a first substrate and a second substrate which are arranged in a box-to-box manner, and at least one of the first substrate and the second substrate adopts a flexible substrate.

The technical contents of the present invention will be described in detail by means of specific examples.

First embodiment:

fig. 5 is a schematic structural diagram of a display device according to a first embodiment of the present invention. As shown in fig. 5, the display device includes a first panel including a first substrate 11 (typically an array substrate) and a second substrate 12 (typically a color film substrate) disposed opposite to each other, and a backlight unit 60. The first panel further includes a first polarizer 51, a second polarizer 52. At least one of the first substrate 11 and the second substrate 12 adopts a flexible base. The backlight unit 60 is disposed at a side of the first substrate 11 facing away from the second substrate 12, the first polarizer 51 is disposed at a side of the first substrate 11 facing away from the second substrate 12, and the second polarizer 52 is disposed at a side of the second substrate 12 facing away from the first substrate 11. The second polarizer 52 includes a 6H polarizer or a 9H polarizer, and it is easily understood that the 6H polarizer is a polarizer having a hardness of 6H and the 9H polarizer is a polarizer having a hardness of 9H. In fig. 5, the first substrate 11 employs a flexible base, and the second polarizer employs a 6H polarizer or a 9H polarizer.

According to the display device provided by the embodiment of the invention, at least one substrate of the first substrate 11 and the second substrate 12 adopts the flexible substrate, so that the thickness and the weight of the display device can be reduced, and the light and thin display device can be realized. In addition, the second polarizer 52 includes a 6H polarizer or a 9H polarizer, which can increase the rigidity of the display device, and the 6H polarizer or the 9H polarizer can also be used as a cover plate of the display device, thereby further saving the cost of the display device.

Also shown in fig. 5 is tape 82 positioned between first substrate 12 and second polarizer 52. It will be readily appreciated that in actual practice, the tape 82 may not be provided.

Second embodiment:

based on the inventive concept of the foregoing embodiments, a second embodiment of the present invention proposes a display device.

Fig. 6 is a schematic structural diagram of a display device according to a second embodiment of the present invention. The schematic plan view of the display device of this embodiment is shown in fig. 1, and fig. 6 shows the schematic sectional view of the B-B section in fig. 1. As shown in fig. 1, the display device includes a display area and a bezel area. As shown in fig. 6, the display device includes a first panel, where the first panel includes a first substrate 11 and a second substrate 12 that are disposed opposite to each other, the first substrate 11 is a flexible substrate, the first substrate 11 has a first binding area in a frame area (in this embodiment, a lower frame area), the first binding area is bound and connected with a first control module, and the first binding area of the first substrate 11 is bent toward a direction away from the second substrate 12, so that the first control module is hidden at one side of the second substrate 12 facing the first substrate 11. The first control module may include a chip 92, a flexible circuit board 91, a printed circuit board module 93, and the like. The chip 92 and the flexible circuit board 91 are all bonded and connected in the first bonding area, and the flexible circuit board 91 is connected with the printed circuit board module 93. After the first binding area of the first substrate 11 is bent towards the direction away from the second substrate 12, the chip 92, the flexible circuit board 91 and the printed circuit board module 93 are curled and folded on one side of the second substrate 12 towards the first substrate 11.

In the display device of the embodiment of the invention, the first substrate 11 is a flexible substrate, and the flexible substrate has flexibility and bending resistance, so that the first binding area of the first substrate 11 can be bent towards the direction away from the second substrate 12, and the first control module is hidden at one side of the second substrate 12 towards the first substrate 11. By the structure, the area where the chip 92, the flexible circuit board 91 and the printed circuit board module 93 are located does not occupy the dimension in the direction parallel to the second substrate 12, but is hidden at the lower side of the second substrate 12, so that the frame of the display device caused by the chip 92, the flexible circuit board 91 and the printed circuit board module 93 is prevented from being enlarged, the size of the lower frame of the display device is effectively reduced, and the narrow frame and the frame-free display device are facilitated. In addition, in the display device of the embodiment of the invention, the first substrate 11 adopts the flexible substrate, and glass is not used as the substrate any more, so that the weight and thickness of the display device are reduced, and the light and thin display device is facilitated.

In the display device shown in fig. 3, the chip 92, the flexible circuit board 91 and the printed circuit board module 93 are all located in the area where the first substrate 11 is located, and although the size of the lower frame of the display device is reduced compared with that of fig. 2, the width of the first binding area of the first substrate still exists, the first binding area protrudes from the second substrate, and the first binding area still occupies the frame size of the display device. Compared with the display device shown in fig. 3, the first binding area of the first substrate 11 is bent towards the direction away from the second substrate 12, so that the chip 92, the flexible circuit board 91 and the printed circuit board module 93 are curled, folded and hidden on the side, facing the first substrate 11, of the second substrate 12, and no longer protrude from the second substrate, and therefore, the first binding area does not occupy the frame size of the display device, and compared with the display device shown in fig. 3, the frame size of the display device is further reduced, and the narrow frame and borderless design of the display device is facilitated.

As shown in fig. 6, the first panel further includes a first polarizer 51 and a second polarizer 52. The first polarizer 51 is disposed on a side of the first substrate 11 facing away from the second substrate 12, the second polarizer 52 is disposed on a side of the second substrate 12 facing away from the first substrate 11, and the backlight unit 60 is disposed on a side of the first panel facing toward the first substrate 11, i.e., the backlight unit 60 is disposed on a side of the first polarizer 51 facing away from the first substrate 11. In such a structure, the side of the second substrate 12 away from the first substrate 11 is the light emitting side, compared with the display device shown in fig. 3, the first substrate 11 is no longer located at the light emitting side, so that metal reflection is no longer caused by metal wires on the first substrate 11, the problem of reflection of pictures is effectively solved, the visual effect and the picture quality of the display device are improved, and meanwhile, the process difficulty and the production cost of the display device are reduced.

As shown in fig. 6, the display device may further include a back plate 71. The back plate 71 is disposed at a side of the backlight unit 60 facing away from the first polarizer 51. In one embodiment, the second polarizer 52 may include a hard polarizer, for example, a 6H polarizer or a 9H polarizer. Such a second polarizer 52 has better rigidity and rigidity, and can replace the cover plate in fig. 2, so that the second polarizer can form the outer surface of the light emitting side of the display device, that is, the second polarizer 52 and the back plate 71 form the frame structure of the display device, thereby omitting the use of the cover plate and reducing the cost of the display device.

Fig. 6 also shows foam 81 positioned within back plate 71, foam 81 may provide some support. As shown in fig. 6, after the binding area of the first substrate 11 is bent toward a direction away from the second substrate 12, foam 81 may be used to support the bent portion of the first substrate 11, so that the bent portion remains fixed.

Table 1 shows the comparison of the display devices of fig. 2, 3 and 6 in terms of weight, thickness and lower bezel width (for example, a 15.0FHB display device), and it can be seen from table 1 that the display device of the embodiment of the present invention has a weight reduction of about 50%, a thickness reduction of about 48% and a lower bezel width reduction of about 85% compared to the display device of fig. 2. Compared with the display device shown in fig. 3, the weight, thickness and width of the lower frame of the display device (as shown in fig. 6) of the embodiment of the invention are also reduced, and the display device is more beneficial to realizing the narrow frame and light weight.

Table 1 comparison of weight, thickness and lower bezel width of three display devices

Fig. 7 is a schematic structural diagram of another frame area of the display device according to the second embodiment of the present invention. As shown in fig. 7, in another frame area of the display device, the first substrate 11 may not be bent because the first substrate 11 does not have a binding area. In this embodiment, the lower frame structure of the display device is shown in fig. 6, and the upper frame, the left frame and the right frame may be as shown in fig. 7 because the upper frame, the left frame and the right frame are not provided with control components. It is easy to understand that when the other frame of the display device is also provided with a binding area for binding the connection control module, the corresponding binding area can also be bent towards the direction away from the second substrate 12, so that the control module does not occupy the dimension parallel to the second substrate 12, thereby avoiding the binding area from occupying the frame dimension of the display device.

Third embodiment:

a third embodiment of the present invention provides a method for manufacturing a display device, including:

pairing the first substrate and the second substrate;

binding and connecting a first control module to the first binding area;

In one embodiment of the present invention, in one embodiment,

the method of preparing may further include, prior to binding the first control module to the first binding region: attaching a first polaroid to one side of the first substrate, which is away from the second substrate, and attaching a second polaroid to one side of the second substrate, which is away from the first substrate;

Before bending the first binding region toward a direction away from the second substrate, the preparation method may further include: and assembling a backlight unit on one side of the first polarizer, which is away from the first substrate.

In one embodiment, the method of preparation may further comprise,

The technical scheme of the embodiment of the invention is described in detail below in connection with the preparation process of the display device. The patterning process may include photoresist coating, mask exposure, development, etching, photoresist stripping, etc., and is a well-known preparation process. The coating may be performed by a known coating process, and is not particularly limited herein.

S11: preparing a first substrate and a second substrate, wherein the first substrate is usually an array substrate, and the second substrate is usually a color film substrate.

The preparing of the first substrate may include: coating a layer of flexible material on the hard substrate, wherein the flexible material can be polyimide and other materials; curing the flexible material to form a film to form a flexible substrate, wherein the flexible material can be cured to form a film by adopting a hot disc vacuum drying device (HVCD), sintering or baking method; preparing a control structure layer on a flexible substrate; an orientation layer is formed on the control structure layer. Forming the alignment layer on the control structure layer may include: coating an orientation liquid (such as polyimide solution) on the control structure layer and curing the orientation liquid to form a film; the alignment film is subjected to an alignment treatment (e.g., rubbing) to form an alignment layer. It is to be readily understood that the control structure layer may include a thin film transistor, a gate line, a data line, a pixel electrode, etc., which may be formed using a patterning process. The hard substrate may be glass or the like.

The second substrate may be formed using a conventional method, and may include a glass base, a color film formed on the glass base, a black matrix, and the like. The structure and preparation method of the second substrate are conventional in the art, and will not be described herein. The second substrate is also provided with an alignment layer on a side facing the first substrate, and a method for forming the alignment layer on the second substrate may be the same as a method for forming the alignment layer on the first substrate, which is not described herein.

S12: as shown in fig. 8, fig. 8 is a schematic structural diagram of the display device after the first substrate and the second substrate are paired. As shown in fig. 8, the first substrate 11 is formed on the hard substrate 100, and the first substrate 11 is provided with a first binding region, and therefore, the first substrate 11 protrudes from the second substrate 12. In one embodiment, the first substrate 11 and the second substrate 12 may be paired in an ODF (bonding the first substrate and the second substrate by a glue frame) manner.

In actual production, a first substrate motherboard (with a hard substrate) and a second substrate motherboard are paired, wherein the first substrate motherboard comprises a plurality of first substrates, and the second substrate motherboard comprises a plurality of second substrates. After the first substrate mother board and the second substrate mother board are subjected to box alignment, cutting equipment (such as a cutter wheel) is required to cut the mother boards subjected to box alignment for the first time, and the mother boards are cut into Panel units (Q-Panel); the Q-Panel is then cut a second time using a cutting device (e.g., a knife wheel or laser cutting) to form a Single Panel (Single Cell). Since the first substrate is provided with the first bonding region, a portion of the second substrate covering the first bonding region is cut off during the second dicing, and thus the size of the first substrate and the size of the second substrate are different in a single panel, typically, the size of the first substrate is larger than the size of the second substrate, i.e., the first bonding region on the first substrate protrudes from the second substrate, as shown in fig. 8.

S13: at least the portion of the rigid substrate corresponding to the first binding region is peeled off the first substrate, and in one embodiment, the rigid substrate 100 is peeled off the first substrate 11 entirely, i.e., the rigid substrate 100 is separated from the flexible base. The hard substrate may be removed by separating the hard substrate from the flexible substrate using a laser lift-off (LLO) technique, as shown in fig. 9, fig. 9 is a schematic diagram of the structure of the display device after the hard substrate is lifted off the first substrate.

S14: the first polarizer and the second polarizer are attached, specifically, the first polarizer 51 is attached to a side of the first substrate 11 facing away from the second substrate 12, the second polarizer 52 is attached to a side of the second substrate 12 facing away from the first substrate 11, the second polarizer 52 may include a 6H polarizer or a 9H polarizer, as shown in fig. 10, and fig. 10 is a schematic structural diagram of the display device after the first polarizer and the second polarizer are attached. In order to prevent the second polarizer 52 from being attached weak, the second polarizer 52 may be attached on the side of the second substrate 12 facing away from the first substrate 11 using the adhesive layer 82.

S15: and binding and connecting the first control module to a first binding area of the first substrate, and coating a green oil protection layer to protect the binding pad. Specifically, performing soft binding on the chip, the flexible circuit board and the like and the first substrate, and binding and connecting the chip, the flexible circuit board and the like to the first binding area; and (3) coating a green oil protection layer on the first binding pad area to protect the binding pad.

S16: and assembling a backlight unit on one side of the first polarizer, which is away from the first substrate.

S17: the first binding area which is bound and connected with the first control module is bent towards the direction deviating from the second substrate, so that the first control module is hidden on one side, facing the first substrate, of the second substrate, and then the first control module is covered and protected by sticking adhesive tape.

S18: cutting the formed integral structure to enable edges of the second substrate, the first polaroid and the second polaroid to be flush, and then carrying out special-shaped cutting on the integral structure to enable the integral structure to be matched with the size of the back plate so as to realize the assembly of the back plate.

In practical implementation, in order to prevent light leakage, it is also necessary to print ink on the periphery of the light-emitting side of the display device to avoid light leakage. Finally, the back plate 71 is assembled on the side of the backlight unit 60 facing away from the first substrate 11, so that the second polarizer 52 forms the outer surface of the light emitting side of the display device, thereby completing the preparation of the display device.

In another embodiment, the manufacturing method of the display device is different from the previous embodiment in step S13, and in another embodiment, S13 may include: stripping the part of the hard substrate corresponding to the first binding area from the first substrate, namely, performing laser pre-cutting on the part of the hard substrate corresponding to the first binding area; and separating the part of the hard substrate corresponding to the first binding region from the flexible base by adopting a laser stripping technology so as to remove the part of the hard substrate corresponding to the first binding region, thereby exposing the first binding region of the first substrate. Since in another embodiment, the hard substrate corresponding to the unbound region of the first substrate remains, the second polarizer may be a common polarizer.

The display device manufactured by the manufacturing method of the embodiment of the invention comprises a display area and a frame area outside the display area, and the cross-section structure of the display device in the frame area is shown in fig. 6 and fig. 7.

Fourth embodiment:

fig. 11 is a schematic structural diagram of a display device according to a fourth embodiment of the present invention. Based on the inventive concept of the foregoing embodiments, a fourth embodiment of the present invention proposes a display device, as shown in fig. 11, including a first panel 10 and a second panel 20 that are stacked. The first panel 10 is typically a display panel and the second panel 20 is typically a local dimming panel. The first panel 10 includes first and second substrates 11 and 12 disposed opposite to each other, and a first liquid crystal layer 13 disposed between the first and second substrates 11 and 12. The second panel 20 includes a third substrate 21 and a fourth substrate 22 disposed opposite to each other, and a second liquid crystal layer 23 between the third substrate 21 and the fourth substrate 22. The fourth substrate 22 is disposed toward the first substrate 11. In general, the first substrate may be an array substrate, the second substrate may be a color film substrate, the third substrate may also be an array substrate, and the fourth substrate may be a color film substrate.

In this embodiment, the first panel may be a display panel, the second panel may be a local dimming panel, and the second panel is provided with a plurality of dimming units, where the plurality of dimming units are in one-to-one correspondence with the pixel units of the first panel, and the dimming units are used for adjusting brightness of light entering the corresponding pixel units. Since the second panel is not used for displaying color, a color film is not generally disposed on the fourth substrate.

In order to reduce the thickness and weight of the dual panel display device, at least one of the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 employs a flexible base.

It is easy to understand that in the dual panel display device, generally, the first substrate 11, the second substrate 12, the third substrate 21 and the fourth substrate 22 all use glass as a base, which results in that the thickness and the weight of the dual panel display device are doubled as compared with those of the single panel display device, and the development of the dual panel display device is seriously affected. According to the double-sided board display device provided by the embodiment of the invention, at least one of the first substrate 11, the second substrate 12, the third substrate 21 and the fourth substrate 22 adopts the flexible substrate, the flexible substrate is thin and light in weight, the thickness and the weight of the double-sided board display device can be effectively reduced, the extremely ultrathin effect is easy to realize, the defects of excessive thickness and excessive weight of the double-sided board display device are effectively overcome, and the application value and the market competitiveness of the double-sided board display device are greatly improved.

To further increase the structural strength of the panel corresponding to the substrate employing the flexible substrate, in one embodiment, the panel corresponding to the substrate employing the flexible substrate further includes a 6H polarizer or a 9H polarizer. The structural strength of the panel can be increased by adopting the 6H polaroid or the 9H polaroid, and the mass production of the display device is easy to realize. For example, the first substrate or the second substrate adopts a flexible substrate, and then the panel corresponding to the first substrate or the second substrate, i.e. the first panel, further comprises a 6H polarizer or a 9H polarizer; the third substrate or the fourth substrate adopts a flexible substrate, and then the panel corresponding to the third substrate or the fourth substrate, namely the second panel, further comprises a 6H polaroid or a 9H polaroid. As shown in fig. 11, the display device according to the embodiment of the present invention further includes a first polarizer 51 and a second polarizer 52. The first polarizer is disposed on a side of the first substrate 11 facing away from the second substrate 12, and the second polarizer 52 is disposed on a side of the second substrate 12 facing away from the first substrate 11. The second panel 20 further comprises a third polarizer 53, the third polarizer 53 being arranged on a side of the third substrate 21 facing away from the fourth substrate 22.

In the present embodiment, as shown in fig. 11, the first substrate 11 and the second substrate 12 each use a flexible base, and the third substrate 21 and the fourth substrate 22 each use a hard base such as glass or the like. The first polarizer 51 may include a 6H polarizer or a 9H polarizer, and the second polarizer 52 may include a 6H polarizer or a 9H polarizer.

As shown in fig. 11, the display device may further include a backlight unit 60, the backlight unit 60 being disposed at a side of the second panel 20 facing away from the first panel 10. It is to be readily understood that the backlight unit 60 may include a lamp housing, a backlight, a reflection plate, a light guide plate, a diffusion plate, and the like.

Compared with the double-panel display device shown in fig. 4, the thickness of the first panel 10 (from the first polarizer to the second polarizer) is reduced from 0.6mm to 0.2mm in the display device shown in fig. 11, so that the thickness of the double-panel display device is greatly reduced, and the weight is greatly reduced.

Fig. 12 is a schematic structural diagram of a display device according to another embodiment of the invention. In the present embodiment, as shown in fig. 12, the third substrate 21 and the fourth substrate 22 each use a flexible base, and the first substrate 11 and the second substrate 12 each use a hard base such as glass or the like. The third polarizer 53 may include a 6H polarizer or a 9H polarizer, and the second polarizer 52 may include a 6H polarizer or a 9H polarizer. Compared with the double-sided board display device shown in fig. 4, the thickness of the second panel 20 (including the third polarizer 53, the third substrate 21, the second liquid crystal layer 23 and the fourth substrate 22) is reduced from 0.5mm to 0.1mm, so that the thickness of the double-sided board display device is greatly reduced, and the weight is greatly reduced.

Fig. 13 is a schematic structural diagram of a display device according to another embodiment of the invention. In this embodiment, as shown in fig. 13, the first substrate 11, the second substrate 12, the third substrate 21, and the fourth substrate 22 each use a flexible substrate, and the first polarizer 51, the second polarizer 52, and the third polarizer 53 may each include a 6H polarizer or a 9H polarizer. Compared with the double-sided board display device shown in fig. 4, the thickness of the first panel 10 (from the first polarizer to the second polarizer) is reduced from 0.6mm to 0.2mm, and the thickness of the second panel 20 (including the third polarizer 53, the third substrate 21, the second liquid crystal layer 23 and the fourth substrate 22) is reduced from 0.5mm to 0.1mm, so that the thickness of the double-sided board display device is reduced by 0.8mm, and thus, the thickness of the double-sided board display device is greatly reduced, and the weight is greatly reduced.

According to the display device provided by the embodiment of the invention, any substrate of the first substrate, the second substrate, the third substrate or the third substrate can be selectively set as the flexible substrate, so that different thicknesses and weights of the display device can be achieved, and different market demands can be met.

Fig. 14 is a schematic diagram of a structure of a dual panel display device. It is easy to understand that the dual panel display device includes a display area and a frame area outside the display area, where the first substrate 11 has a first bonding area in the frame area, and the first bonding area is bonded and connected with the first control module 41. The first control module may include a chip, a flexible circuit board, a printed circuit board module, and the like. The chip and the flexible circuit board are all bound and connected in the first binding area, and the flexible circuit board is connected with a printed circuit board module. Since the first substrate 11 adopts a flexible substrate, in order to reduce the width of the border area of the dual panel display device, as shown in fig. 14, the first binding area may be bent toward a direction away from the second substrate 12, so that the first control module is hidden at a side of the second substrate 12 facing the first substrate 11.

Similarly, in the frame area, the third substrate 21 has a second binding area in the frame area, and the second binding area is connected to the second control module 42 in a binding manner. The second control module 42 may include a chip, a flexible circuit board, a printed circuit board module, and the like. The chip and the flexible circuit board are all bound and connected in the second binding area, and the flexible circuit board is connected with a printed circuit board module. Since the third substrate 21 adopts a flexible substrate, in order to reduce the width of the border area of the dual panel display device, as shown in fig. 14, the second binding area may be bent toward a direction away from the fourth substrate 12, so that the second control module is hidden at a side of the fourth substrate 22 facing the third substrate 21.

Therefore, as shown in fig. 14, the first binding area and the second binding area do not occupy the dimension parallel to the substrate, which effectively reduces the width of the frame area of the display device, and is beneficial to realizing the narrow frame and no frame of the dual panel display device.

As shown in fig. 14, the dual panel display device further includes a back plate 71, and the back plate 71 is disposed at a side of the backlight unit 60 facing away from the third polarizer 53. In fig. 14, the second polarizer 52 may include a 6H polarizer or a 9H polarizer. The 6H polaroid or the 9H polaroid has better hardness and rigidity and can replace a cover plate of the display device, so that the second polaroid 52 and the back plate 71 form a frame structure of the display device, the use of the cover plate is omitted, and the cost of the display device is reduced.

It is easy to understand that, as long as the first substrate and the third substrate both adopt flexible substrates, bending of the first binding area towards the direction away from the second substrate 12 can be achieved, so that the first control module is hidden at the side of the second substrate 12 towards the first substrate 11, and bending of the second binding area towards the direction away from the fourth substrate 12, so that the second control module is hidden at the side of the fourth substrate 22 towards the third substrate 21. Therefore, the design of the narrow frame of the display device is realized, and the light and thin structure, the narrow frame and even no frame of the double-panel display device are realized.

It is to be readily understood that the display device according to the embodiment of the present invention may employ a high-multidimensional electric field type (High Advanced Super Dimension Switch, HADS) liquid crystal panel as the first panel. The second panel may be a high-multidimensional electric field (High Advanced Super Dimension Switch, HADS) liquid crystal panel, or a Twisted Nematic (TN) liquid crystal panel.

The following describes a method for manufacturing a display device according to an embodiment of the present invention with reference to fig. 14.

S100: preparing a first panel and a second panel, specifically comprising:

s101: preparing a first panel comprising:

S:1011: preparing a first substrate and a second substrate, wherein the first substrate is usually an array substrate, and the second substrate is usually a color film substrate.

The method for preparing the first substrate is the same as that of the third embodiment, and will not be described here.

Preparing the second substrate may include: coating a layer of flexible material on the hard substrate, wherein the flexible material can be polyimide and other materials; curing the flexible material into a film to form a flexible substrate, and curing the flexible material into a film by a hot disc vacuum drying device (HVCD) and a sintering or baking method; preparing a color film structure layer on a flexible substrate, wherein the color film structure layer can comprise a color film and a black matrix; and forming an orientation layer on the color film structure layer. The process of forming the alignment layer may include: coating an orientation liquid (such as polyimide solution) on the color film structural layer and curing to form a film; the alignment film is subjected to an alignment treatment (e.g., a rubber or OA process) to form an alignment layer.

S1012: the first substrate and the second substrate are paired. The process of aligning the first substrate and the second substrate is the same as S12 in the third embodiment, and will not be described here again.

It is easy to understand that the first substrate and the second substrate are respectively disposed on the corresponding hard substrates during the aligning process.

S1013: and stripping the hard substrate corresponding to the first substrate from the first substrate, and stripping the hard substrate corresponding to the second substrate from the first substrate. The rigid substrate may be separated from the substrate using a laser lift-off technique to remove the rigid substrate.

S1014: the first polarizer and the second polarizer are attached, specifically, the first polarizer 51 is attached on a side of the first substrate 11 facing away from the second substrate 12, and the second polarizer 52 is attached on a side of the second substrate 12 facing away from the first substrate 11, where the first polarizer and the second polarizer may each include a 6H polarizer and a 9H polarizer.

S1015: and binding and connecting the first control module to a first binding area of the first substrate, and coating a green oil protection layer to protect the binding pad. Specifically, performing soft binding on the chip, the flexible circuit board and the like and the first substrate, and binding and connecting the chip, the flexible circuit board and the like to the first binding area; and (3) coating a green oil protection layer on the first binding pad area to protect the binding pad.

S102: preparing a second panel comprising:

s1021: a third substrate, typically an array substrate, and a fourth substrate, typically a transparent substrate, are prepared.

The method for preparing the third substrate is the same as the method for preparing the first substrate in S1011, and will not be described again.

The preparing of the fourth substrate may include: coating a layer of flexible material on the hard substrate, wherein the flexible material can be polyimide and other materials; curing the flexible material into a film to form a flexible substrate, and curing the flexible material into a film by a hot disc vacuum drying device (HVCD) and a sintering or baking method; an alignment layer is formed on the flexible substrate.

S1022: the third substrate and the fourth substrate are paired. The process of aligning the third substrate and the fourth substrate is the same as S1012, and will not be described here again.

It is easy to understand that the third substrate and the fourth substrate are respectively disposed on the corresponding hard substrates during the aligning process.

S1023: and stripping the hard substrate corresponding to the third substrate from the third substrate, and stripping the hard substrate corresponding to the fourth substrate from the fourth substrate. The rigid substrate may be separated from the substrate using a laser lift-off technique to remove the rigid substrate.

S1024: and attaching a third polaroid, namely attaching the third polaroid on one side of the third substrate, which is far away from the fourth substrate, wherein the third polaroid comprises a 6H polaroid and a 9H polaroid.

S200: the first panel and the second panel are attached such that the fourth substrate 22 faces the first polarizer 51, and in particular, the first panel and the second panel may be attached using an optical cement (OCA, optically Clear Adhesive) process such that the fourth substrate 22 faces the first polarizer 51, as shown in fig. 11.

S300: assembling the backlight unit, and arranging the backlight unit on one side of the second panel away from the first panel.

S400: bending the first binding area bound and connected with the first control module 41 towards the direction away from the second substrate 12, so that the first control module 41 is hidden on one side of the second substrate 12 towards the first substrate 11, and then masking and protecting the first control module 41 by sticking adhesive tape; the second binding area bound and connected with the second control module 42 is bent towards the direction away from the fourth substrate 22, so that the second control module 42 is hidden on one side of the fourth substrate 22 towards the third substrate 21, and then the second control module 42 is covered and protected by adhesive tape.

S500: cutting the formed integral structure to enable the edges of the first panel and the second panel to be flush, and then carrying out special-shaped cutting on the integral structure to enable the integral structure to be matched with the size of the back plate so as to realize the assembly of the back plate.

In practical implementation, in order to prevent light leakage, it is also necessary to print ink on the periphery of the light emitting side of the display device to avoid light leakage, and finally, assemble the back plate 71 on the side of the backlight unit 60 facing away from the second panel 20, so that the second polarizer 52 forms the outer surface of the light emitting side of the display device, and complete the preparation of the display device, as shown in fig. 14.

In the description of the embodiments of the present invention, it should be understood that the terms "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

Although the embodiments of the present invention are described above, the embodiments are only used for facilitating understanding of the present invention, and are not intended to limit the present invention. Any person skilled in the art can make any modification and variation in form and detail without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is to be determined by the appended claims.

Claims

1. A display device comprising a first panel comprising a first substrate and a second substrate arranged in a pair of cells, at least one of the first substrate and the second substrate being a flexible substrate; the display device comprises a first substrate, a second substrate, a first control module and a second control module, wherein the first substrate adopts a flexible substrate, the display device comprises a display area and a frame area positioned outside the display area, the first substrate is provided with a first binding area in the frame area, the first binding area is connected with the first control module in a binding mode, and the first binding area of the first substrate is bent towards the direction deviating from the second substrate, so that the first control module is curled and folded and hidden on one side of the second substrate towards the first substrate; the first control module comprises a chip, a flexible circuit board and a printed circuit board module, wherein the flexible circuit board is connected with the printed circuit board module; the first binding area of the first substrate comprises an extension area, a first bending area and a second bending area, the first end of the extension area is connected with the first substrate of the display area, the second end of the extension area extends towards the direction far away from the display area, the first end of the first bending area is connected with the second end of the extension area, the second end of the first bending area extends towards the direction far away from the second substrate, the first end of the second bending area is connected with the second end of the first bending area, the second end of the second bending area extends towards the direction far away from the display area, the chip is arranged on one side, far away from the display area, of the first bending area, and the flexible circuit board is arranged on one side, close to the second substrate, of the second bending area.

2. The display device of claim 1, wherein the first panel further comprises a first polarizer disposed on a side of the first substrate facing away from the second substrate, and a second polarizer disposed on a side of the second substrate facing away from the first substrate, the display device further comprising a backlight unit disposed on a side of the first panel facing the first substrate.

3. The display device of claim 2, wherein the second polarizer comprises a 6H polarizer or a 9H polarizer, the display device further comprising a back plate disposed on a side of the backlight unit facing away from the first panel, the second polarizer forming an outer surface of a light-emitting side of the display device.

4. A display device according to any one of claims 1 to 3, further comprising a second panel, the second panel being arranged on a side of the first panel facing the first substrate, the second panel comprising a third substrate and a fourth substrate arranged opposite the case, the fourth substrate facing the first substrate, the third substrate being a flexible substrate, the third substrate having a second binding area in a border area, the second binding area being bound to a second control module, the second binding area of the third substrate being folded in a direction facing away from the fourth substrate, such that the second control module is hidden on a side of the fourth substrate facing the third substrate.

5. The display device according to claim 4, wherein the second substrate or/and the fourth substrate is a flexible substrate.

6. The display device according to claim 4, wherein the first panel includes a display panel, the second panel includes a regional dimming panel, the second panel is provided with a plurality of dimming units, the plurality of dimming units are in one-to-one correspondence with the pixel units of the first panel, and the dimming units are used for adjusting brightness of light entering the corresponding pixel units.

7. The display device of claim 4, wherein the first panel further comprises a first polarizer disposed on a side of the first substrate facing away from the second substrate, and a second polarizer disposed on a side of the second substrate facing away from the first substrate, the second panel further comprises a third polarizer disposed on a side of the third substrate facing away from the fourth substrate, and the first polarizer, the second polarizer, and the third polarizer each comprise a 6H polarizer or a 9H polarizer.

8. A method of manufacturing a display device, comprising:

Pairing the first substrate and the second substrate;

binding and connecting a first control module to the binding area; the first control module comprises a chip, a flexible circuit board and a printed circuit board module, wherein the flexible circuit board is connected with the printed circuit board module;

bending the first binding region of the first substrate towards a direction away from the second substrate, so that the first control module is curled and folded and hidden at one side of the second substrate towards the first substrate; the first binding area of the first substrate comprises an extension area, a first bending area and a second bending area, wherein the first end of the extension area is connected with the first substrate of the display area, the second end of the extension area extends far away from the display area, the first end of the first bending area is connected with the second end of the extension area, the second end of the first bending area extends far away from the second substrate, the first end of the second bending area is connected with the second end of the first bending area, the second end of the second bending area extends far away from the display area, the chip is arranged on one side of the first bending area far away from the display area, and the flexible circuit board is arranged on one side of the second bending area close to the second substrate.

9. The method according to claim 8, wherein,

10. The method of manufacturing according to claim 9, further comprising,