KR102740896B1 - Display device and manufacturing method of the same - Google Patents

Abstract

A display device includes a display panel having a pad portion into which a driving signal is input, a cover window bonded to the display panel and covering the display panel, a flexible printed circuit board bonded to the pad portion of the display panel and providing the driving signal toward the display panel, a bonding cover portion covering the pad portion bonded to the flexible printed circuit board, and an adhesive member disposed between the bonding cover portion and the cover window and bonded to the bonding cover portion and the cover window.

Description

DISPLAY DEVICE AND MANUFACTURING METHOD OF THE SAME

The present invention relates to a display device and a method for manufacturing the display device, and more specifically, to a display device having a structure with improved durability against external force and a method for manufacturing the same.

A display device is a device that displays an image, and types of display devices include liquid crystal displays and organic light-emitting displays. A liquid crystal display device displays an image by including a liquid crystal display panel and a backlight assembly, and an organic light-emitting display device displays an image by including an organic light-emitting display panel that includes organic light-emitting diodes.

Depending on the structure of the display panel and other components combined therewith within the display device, stress may be applied to a certain portion of the display panel. For example, the terminal portion of the display panel may generally be bonded to a component such as a flexible printed circuit board, and stress may be applied to the terminal portion of the display panel when the flexible printed circuit board is moved. In this case, if excessive stress is applied to the terminal portion of the display panel, cracks may occur in the terminal portion of the display panel.

One purpose of the present invention is to provide a display device with improved durability against external force.

Another object of the present invention is to provide a method for manufacturing a display device having improved durability against external force.

A display device for achieving the above-described object of the present invention comprises: a display panel having a pad portion into which a driving signal is input; a cover window bonded to the display panel and covering the display panel; a flexible printed circuit board bonded to the pad portion of the display panel and providing the driving signal toward the display panel; a bonding cover portion covering the pad portion bonded to the flexible printed circuit board; and an adhesive member disposed between the bonding cover portion and the cover window and bonded to the bonding cover portion and the cover window.

Another display device for achieving the above-described object of the present invention comprises: a display panel having a pad portion into which a driving signal is input; a cover window bonded to the display panel and covering the display panel; a flexible printed circuit board bonded to the pad portion of the display panel and providing the driving signal toward the display panel; a bonding cover portion covering the pad portion bonded to the flexible printed circuit board; an adhesive layer disposed between the cover window and the display panel and bonding the display panel to the cover window; and an adhesive barrier disposed between the cover window and the display panel and bonding the display panel to the cover window.

In addition, the adhesive barrier surrounds the adhesive layer to define an area where the adhesive layer is formed. The adhesive barrier has a linear shape arranged along an edge of the display panel. A portion of the adhesive barrier corresponding to the pad portion is arranged between the cover window and the bonding cover portion and is bonded to the cover window and the bonding cover portion.

Another method for manufacturing a display device for achieving another object of the present invention described above is as follows. A bonding cover portion covering a pad portion of a display panel bonded to a flexible printed circuit board is formed. An adhesive member is bonded to the back surface of a cover window. The cover window is bonded to the display panel.

Additionally, when the cover window is bonded to the display panel, the adhesive member is bonded to the bonding cover portion, thereby fixing the pad portion to the cover window.

According to an embodiment of the present invention, a bonding cover portion covering a pad portion of a display panel is formed, and an adhesive member is interposed between the bonding cover portion and the cover window. Accordingly, the pad portion of the display panel is fixed to the cover window by the structure of the bonding cover portion and the adhesive member, thereby preventing cracks from occurring in the pad portion due to external force.

In addition, in the case where a structure is applied that fixes the pad portion to the cover window using an adhesive member as described above, even if the width of the pad portion is small and it is not easy to form the bonding cover portion with a sufficient thickness, not only can the gap between the bonding cover portion and the cover window be easily filled using the adhesive member, but the rigidity of the pad portion can be supplemented by the structure composed of the adhesive member and the bonding cover portion.

Figure 1 is an exploded perspective view of a display device according to one embodiment of the present invention.
Figure 2 is a cross-sectional view showing a surface cut along line II` illustrated in Figure 1.
FIG. 3 is a cross-sectional view of a display device according to another embodiment of the present invention.
Figure 4 is a cross-sectional view of a display device according to another embodiment of the present invention.
FIG. 5a is a plan view of a display device according to another embodiment of the present invention.
Fig. 5b is a cross-sectional view showing a surface cut along line II-II` shown in Fig. 5a.
FIGS. 6A, 6B, 6C, 6D, and 6E are drawings showing a method for manufacturing the display device illustrated in FIG. 1.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. The purpose, features, and effects of the present invention described above can be understood through embodiments related to the drawings. However, the present invention is not limited to the embodiments described herein, and may be applied and modified in various forms. Rather, the embodiments of the present invention described below are provided so that the technical idea disclosed by the present invention can be more clearly understood, and further, so that the technical idea of the present invention can be sufficiently conveyed to those skilled in the art having average knowledge in the field to which the present invention pertains. Therefore, the scope of the present invention should not be construed as being limited by the embodiments described below. Meanwhile, the same reference numbers in the following embodiments and the drawings represent the same components.

In addition, the terms "first" and "second" in this specification are not used in a restrictive sense, but are used for the purpose of distinguishing one component from another component. In addition, when a part such as a film, region, or component is said to be "over" or "on" another part, it includes not only the case where it is directly over the other part, but also the case where another film, region, component, etc. is interposed between them.

Fig. 1 is an exploded perspective view of a display device according to one embodiment of the present invention. Fig. 2 is a cross-sectional view showing a surface taken along line I-I` illustrated in Fig. 1.

Referring to FIGS. 1 and 2, the display device (200) includes a display panel (110), a backlight assembly (100), a cover window (CG), a touch sensing portion (TS), a flexible printed circuit board (120), a printed circuit board (130), a bonding cover portion (GF), an adhesive barrier (AW), an adhesive layer (AL), and an adhesive member (ST).

The display panel (110) displays an image. In this embodiment, the display panel (110) may be a liquid crystal display panel, and the display panel (110) displays an image using light output from the backlight assembly (100).

The display panel (110) includes an array substrate (101), a counter substrate (105), and a liquid crystal layer (not shown). The array substrate (101) is provided with a plurality of pixels, and each of the plurality of pixels may include a pixel electrode and a common electrode that controls the direction of liquid crystal molecules of the liquid crystal layer together with the pixel electrode. In addition, although not shown separately, a polarizing plate may be adhered to the back surface of the array substrate (101).

The counter substrate (105) is coupled to the array substrate (101), and the counter substrate (105) faces the array substrate (101) with the liquid crystal layer therebetween. In this embodiment, the counter substrate (105) may be provided with color filters, and thus, light output from the backlight assembly (100) and passing through the liquid crystal layer may be filtered into colored light by the color filters.

The present invention is not limited to the structure of the array substrate (101) and the counter substrate (105). For example, in another embodiment, color filters may be provided on the array substrate (101).

In addition, the present invention is not limited to the type of the display panel (110). For example, in another embodiment, the display panel (110) may be an organic light-emitting display panel, and in this case, the backlight assembly (100) may be omitted as a component of the display device (200).

The backlight assembly (100) outputs light toward the display panel (110). In this embodiment, the backlight assembly (100) may include a light source that generates light using power provided from an external source, a light guide plate that guides the light generated from the light source toward the display panel (110), and a plurality of optical sheets that control the direction of propagation of the light output from the light guide plate.

The cover window (CG) covers the display panel (110). In this embodiment, the cover window (CG) may be a cover glass, and the cover window (CG) is positioned at the uppermost side of the display device (200) to protect the display panel (110) from external impact. In another embodiment, the cover window (CG) may be formed of a plastic material having light-transmitting properties, such as an acrylic resin.

In this embodiment, the touch sensing unit (TS) is provided in the form of a touch screen panel and can be coupled to the cover window (CG) by a transparent adhesive layer (not shown). However, the present invention is not limited to the structure of the touch sensing unit (TS), and for example, in another embodiment, the touch sensing unit (TS) may be adhered to the display panel (110) by a transparent adhesive layer, or the touch sensing unit (TS) may be built into the interior of the display panel (110).

A flexible printed circuit board (120) is bonded to a pad portion (PD) of a display panel (110). The flexible printed circuit board (120) electrically connects the display panel (110) to a printed circuit board (130). In this embodiment, the flexible printed circuit board (120) includes a flexible base film and conductive wires printed on the base film. In addition, a driving chip (DC) may be mounted on the flexible printed circuit board (120) in a COF (chip on film) manner, and the driving chip (DC) may output data signals toward the display panel (110).

The printed circuit board (130) is electrically connected to the display panel (110) through the flexible printed circuit board (120). In this embodiment, electronic components such as a timing control unit may be mounted on the printed circuit board (130), and the printed circuit board (130) generates signals that control the operation of the display panel (110).

As described above, since the flexible printed circuit board (120) has a flexible characteristic, the flexible printed circuit board (120) can have a shape that is bent in a direction from the front of the display panel (110) toward the rear of the display panel (110). Accordingly, the printed circuit board (130) can be placed on the back surface of the display panel (110) by the bending structure of the flexible printed circuit board (120) described above.

The bonding cover portion (GF) covers the pad portion (PD) of the display panel (110) bonded to the flexible printed circuit board (120). Therefore, the bonding cover portion (GF) can protect the pad portion (PD) and the terminal portion of the flexible printed circuit board (120) bonded to the pad portion (PD). More specifically, the bonding cover portion (GF) can prevent moisture or contaminants from flowing into the pad portion (PD), and the bonding force between the terminal portion and the pad portion (PD) of the flexible printed circuit board (120) can be supplemented by the bonding cover portion (GF).

In this embodiment, the bonding cover part (GF) alleviates a step generated in the display panel (110) corresponding to the position of the pad part (PD), and the pad part (PD) is fixed to the cover window (CG) by the adhesive member (ST) adhered to the bonding cover part (GF), thereby preventing cracks from occurring in the pad part (PD) due to external force.

An adhesive partition (AW) is disposed between a cover window (CG) and a display panel (110) to adhere the display panel (110) to the cover window (CG). When viewed from a plan view, the adhesive partition (AW) is formed in a linear shape along an edge of the display panel (110). In addition, the adhesive partition (AW) is formed in a closed loop shape so as to surround the adhesive layer (AL) so as to have a height from a surface of the display panel (110). Accordingly, resins constituting the adhesive layer (AL) can be filled within a space surrounded by the adhesive partition (AW), so that the adhesive partition (AW) can define a region where the adhesive layer (AL) is formed.

An adhesive layer (AL) is disposed between a cover window (CG) and a display panel (110) to adhere the display panel (110) to the cover window (CG). In addition, the adhesive layer (AL) has a shape surrounded by an adhesive barrier (AW), and the adhesive layer (AL) can overlap a display area (DA) of the display panel (110).

In this embodiment, the adhesive layer (AL) and the adhesive barrier (AW) can be formed by curing a transparent resin that is cured by light or heat, and the display panel (110) can be firmly adhered and bonded to the cover window (CG) by the structure of the adhesive layer (AL) and the adhesive barrier (AW) described above.

An adhesive member (ST) is positioned between a bonding cover portion (GF) and a cover window (CG). More specifically, the adhesive member (ST) may be positioned at an edge (EG) corresponding to a pad portion (PD) among the edges of the cover window (CG).

In this embodiment, the adhesive member (ST) may be a double-sided tape, and thus the adhesive member (ST) is bonded to the upper surface of the bonding cover portion (GF) and the back surface of the cover window (CG). As a result, not only is the gap between the bonding cover portion (GF) covering the pad portion (PD) and the cover window (CG) filled by the adhesive member (ST), but also the pad portion (PD) of the display panel (110) is fixed to the cover window (CG) by the adhesive member (ST).

Unlike the embodiment of the present invention, if a gap occurs between the bonding cover part (GF) and the cover window (CG), when the flexible printed circuit board (120) bonded to the pad part (PD) moves, an external force may be applied to the pad part (PD), and as a result, a crack may occur in the pad part (PD) of the display panel (110). However, in the embodiment of the present invention described above, even if an external force is applied to the pad part (PD), the external force applied to the pad part (PD) is distributed to the cover window (CG), so that cracks may be prevented from occurring in the pad part (PD) due to the external force.

Fig. 3 is a cross-sectional view of a display device according to another embodiment of the present invention. Meanwhile, in describing Fig. 3, reference numerals are given to components previously described, and redundant descriptions of the components are omitted.

Referring to FIG. 3, a display device (201) according to this embodiment includes an adhesive member (ST-1), and the adhesive member (ST-1) includes a first portion (P1) and a second portion (P2). The first portion (P1) of the adhesive member (ST-1) is positioned between a cover window (CG) and a bonding cover portion (GF), and the first portion (P1) is in contact with the cover window (CG) and the bonding cover portion (GF).

The second part (P2) of the adhesive member (ST-1) is connected to the first part (P1), and the second part (P2) is positioned closer to the adhesive barrier (AW) than the first part (P1). Accordingly, the second part (P2) of the adhesive member (ST-1) is positioned in the gap between a portion of the periphery of the pad part (PD) of the display panel (110) and the cover window (CG) and fills the gap.

According to the configuration of the adhesive member (ST-1) described above, the pad member (PD) is fixed to the cover window (CG) by the first part (P1) bonded to the bonding cover part (GF) of the adhesive member (ST-1) and the cover window (CG), thereby preventing the pad member (PD) from being cracked by an external force. In addition, the structure of the first part (P1) described above can be more firmly supported by the second part (P2) of the adhesive member (ST-1), and the edge of the display panel (110) corresponding to the pad member (PD) can be more firmly supported by the cover window (CG) by the second part (P2) of the adhesive member (ST-1).

In addition, some of the uncured resin among the resin forming the bonding cover portion (GF) is blocked from flowing between the display panel (110) and the cover window (CG) by the second part (P2) of the adhesive member (ST-1), thereby preventing the display quality of the display panel (110) from being deteriorated by the uncured resin.

Fig. 4 is a cross-sectional view of a display device according to another embodiment of the present invention. Meanwhile, in describing Fig. 4, reference numerals are given to components previously described, and redundant descriptions of the components are omitted.

Referring to FIG. 4, the display device (202) according to this embodiment includes an adhesive member (ST-2), and the adhesive member (ST-2) includes a first portion (P1-1), a second portion (P2-1), and a third portion (P3-1).

A first portion (P1-1) of the adhesive member (ST-2) is disposed between a cover window (CG) and a bonding cover portion (GF), and the first portion (P1) is in contact with the cover window (CG) and the bonding cover portion (GF). In addition, a second portion (P2-1) is connected to the first portion (P1-1) to cover one side of the bonding cover portion (GF), and a third portion (P3-1) is connected to the first portion (P1-1) to cover the other side of the bonding cover portion (GF). Therefore, the second portion (P2-1) of the adhesive member (ST-2) faces the third portion (P3-1) with the bonding cover portion (GF) interposed therebetween.

According to the structure of the adhesive member (ST-2) described above, the pad member (PD) is fixed to the cover window (CG) by the first portion (P1-1) that is adhered to the bonding cover part (GF) and the cover window (CG) of the adhesive member (ST-2), so that the pad member (PD) can be prevented from being cracked by an external force. In addition, since the adhesive member (ST-2) has a shape that surrounds the bonding cover part (GF), the area in contact with the bonding cover part (GF) increases in size, so that the bonding structure by the adhesive force between the adhesive member (ST-2) and the bonding cover part (GF) can be made more solid. As a result, the effect of fixing the pad member (PD) of the display panel (110) to the cover window (CG) by the bonding cover part (GF) and the adhesive member (ST-2) can be further improved.

FIG. 5a is a plan view of a display device (203) according to another embodiment of the present invention, and FIG. 5b is a cross-sectional view showing a surface cut along line II-II` illustrated in FIG. 5a. Meanwhile, in describing FIGS. 5a and 5b, reference numerals are given to components described above, and redundant descriptions of the components are omitted.

Referring to FIGS. 5a and 5b, the display device (203) includes a display panel (110), a cover window (CG), a touch sensing portion (TS), a flexible printed circuit board (120), a bonding cover portion (GF), an adhesive layer (AL), and an adhesive barrier (AW-1).

In the embodiment illustrated in FIG. 1 above, the adhesive partition (AW of FIG. 1) is formed in a linear closed loop shape along the edge of the display panel between the cover window (CG of FIG. 1) and the display panel (110 of FIG. 1), and when viewed in a plan view, the adhesive partition (AW of FIG. 1) has substantially the same width regardless of the position at which it is formed.

In contrast, in the embodiments illustrated in FIGS. 5A and 5B, the adhesive partition (AW-1) is formed in a linear closed loop shape along the edge of the display panel (110) or the cover window (CG) between the cover window (CG) and the display panel (110), but the adhesive partition (AW-1) may have different widths depending on the position at which the adhesive partition (AW-1) is formed when viewed in a plan view.

More specifically, in a case where each of the display panel (110) and the cover window (CG) has a rectangular shape as in this embodiment, the adhesive partition (AW-1) is formed in a closed loop shape along two long sides and two short sides of the cover window (CG), and the first width (W1) of the first portion (A1) that overlaps the pad portion (PD) of the adhesive partition (AW-1) is larger than the second width (W2) of the second portion (A2) that does not overlap the pad portion (PD) of the adhesive partition (AW-1).

That is, the first part (A1) of the adhesive barrier (AW-1) has a wider width than the second part (A2) so as to overlap the pad part (PD), and accordingly, the adhesive barrier (AW-1) is positioned between the bonding cover part (GF) and the cover window (CG) and can be bonded to the bonding cover part (GF) and the cover window (CG).

According to the structure of the adhesive barrier wall (AW-1) described above, the gap between the bonding cover part (GF) and the cover window (CG) can be filled instead of the adhesive member (ST of FIG. 1) described with reference to FIG. 1 in the display device (203), and furthermore, the adhesive barrier wall (AW-1) can fix the pad part (PD) to the cover window (CG). Accordingly, cracks in the pad part (PD) can be prevented from occurring due to an external force applied to the pad part (PD).

FIGS. 6A, 6B, 6C, 6D, and 6E are drawings showing a method of manufacturing the display device illustrated in FIG. 1. Meanwhile, in describing FIGS. 6A to 6E, drawing reference numerals are given for components previously described, and redundant descriptions of the components are omitted.

Referring to FIGS. 6A and 6B, FIG. 6A is a plan view illustrating a method of forming a preliminary adhesive barrier (P-AW) on a display panel (110), and FIG. 6B is a cross-sectional view of a display panel (110) on which the preliminary adhesive barrier (P-AW) illustrated in FIG. 6A is formed.

A display panel (110) including an array substrate (101) and a counter substrate (105) is prepared, and a pre-adhesive barrier wall (P-AW) is formed on the surface of the display panel (110). A method for forming a pre-adhesive barrier wall (P-AW) according to this embodiment is as follows.

First, an adhesive resin is provided on the upper surface of the display panel (110) using a dispenser (not shown). The adhesive resin may have a transparent property that is cured by light or heat, and the adhesive resin may be formed linearly along an edge of the display panel (110), and the adhesive resin may be formed in a closed loop shape. Thereafter, the adhesive resin provided on the display panel (110) is temporarily cured. As a result, the adhesive resin is temporarily cured, and a preliminary adhesive barrier (P-AW) may be formed on the display panel (110).

A flexible printed circuit board (120) may be bonded to a pad portion (PD) of an array substrate (101), and a bonding cover portion (GF) may be formed on the pad portion (PD). The bonding cover portion (GF) may be formed by providing an adhesive resin on the pad portion (PD) and curing the adhesive resin. Meanwhile, the present invention is not limited to the order of the process of bonding the flexible printed circuit board (120) to the pad portion (PD) and the process of forming the bonding cover portion (GF). For example, in another embodiment, before a preliminary adhesive barrier (P-AW) is formed on the display panel (110), the flexible printed circuit board (120) may be bonded to the pad portion (PD), and the bonding cover portion (GF) may be formed on the pad portion (PD).

Referring to FIG. 6c, an adhesive resin (RS) is provided within a space defined as a pre-adhesive barrier wall (P-AW) to form a pre-adhesive layer (P-AL). In this embodiment, the adhesive resin (RS) may be provided to the inner side of the pre-adhesive barrier wall (P-AW) using a dispenser (DP), and the adhesive resin (RS) may be a liquid having viscosity before being cured.

As described above, since the preliminary adhesive barrier wall (P-AW) is formed by temporarily curing the adhesive resin, the preliminary adhesive barrier wall (P-AW) can have a structure having a height from the surface of the display panel (110). In addition, since the preliminary adhesive barrier wall (P-AW) is formed in the shape of a linear closed loop, the preliminary adhesive barrier wall (P-AW) can function as a dam that confines the adhesive resin (RS). Accordingly, the adhesive resin (RS) can be filled on the inside of the preliminary adhesive barrier wall (P-AW) to form the preliminary adhesive layer (P-AL).

Referring to Fig. 6d, an adhesive member (ST) is adhered to the back surface (BS) of the cover window (CG). In this embodiment, the adhesive member (ST) may be a double-sided tape. Accordingly, one adhesive surface of the adhesive member (ST) may be adhered to the back surface of the cover window (CG0), and the other surface of the adhesive member (ST) may be exposed to the outside.

In addition, in this embodiment, the adhesive member (ST) can be bonded to the back surface of the cover window (CG) corresponding to the position of the pad portion (PD of FIG. 6a) of the display panel. Accordingly, when the cover window (CG) and the display panel are bonded, the adhesive member (ST) can overlap the bonding cover portion (GF of FIG. 6b) disposed on the pad portion.

Referring to FIG. 6e, a bonding process is performed on a display panel (110) formed with a bonding cover portion (GF), a preliminary adhesive barrier (P-AW), and a preliminary adhesive layer (P-AL) described with reference to FIGS. 6a to 6c, and a cover window (CG) formed with an adhesive member (ST) described with reference to FIG. 6d.

More specifically, in the bonding process, the display panel (110) and the cover window (CG) are bonded so that they face each other, and when the bonding process is performed, the cover window (CG) can be aligned to the display panel (110) so that the adhesive member (ST) overlaps the bonding cover part (GF) and can be bonded to the bonding cover part (GF).

In addition, after the above bonding process is completed, a curing process is performed on the pre-adhesive barrier wall (P-AW of FIG. 6c) and the pre-adhesive layer (P-AL of FIG. 6c). As a result, the temporarily cured pre-adhesive barrier wall (P-AW of FIG. 6c) described with reference to FIG. 6c is completely cured to form the adhesive barrier wall (AW), and the pre-adhesive layer (P-AL of FIG. 6c) is completely cured to form the adhesive layer (AL).

In this embodiment, when the curing process is performed, light (LT) such as ultraviolet rays is irradiated to the front side of the cover window (CG), and the adhesive resins constituting the adhesive barrier wall (AW) and the adhesive layer (AL) can be cured by the light (LT). In another embodiment, the adhesive resins constituting the adhesive barrier wall (AW) and the adhesive layer (AL) can also be cured by heat.

As the adhesive barrier wall (AW) and the adhesive layer (AL) are formed by the above-described curing process, the cover window (CG) can be firmly adhered to the display panel (110) by the adhesive barrier wall (AW) and the adhesive layer (AL). In addition, as the above-described bonding process and the above-described curing process are performed, the adhesive member (ST) can be disposed between the bonding cover part (GF) and the cover window (CG) and adhered to the bonding cover part (GF) and the cover window (CG). Accordingly, the pad part (PD) of the display panel (110) is fixed to the cover window (CG) by the structure composed of the bonding cover part (GF) and the adhesive member (ST), so that the rigidity of the pad part (PD) can be supplemented, and thus cracks can be prevented from occurring in the pad part (PD).

Although the present invention has been described with reference to the above embodiments, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention as set forth in the claims below.

100: Backlight assembly 110: Display panel
120: Flexible printed circuit board 130: Printed circuit board
AL: Adhesive layer ST: Adhesive member
CG: Cover window GF: Bonding cover part
AW: Adhesive Bulkhead P-AW: Pre-adhesive Bulkhead
P-AL: Preliminary adhesive layer 200: Display device

Claims (15)

A display panel having a pad section into which a driving signal is input;
A cover window adhered to the above display panel and covering the above display panel;
A flexible printed circuit board bonded to the pad portion of the display panel and providing the driving signal toward the display panel;
A bonding cover portion covering the pad portion bonded to the above flexible printed circuit board; and
It comprises an adhesive member disposed between the bonding cover part and the cover window and adhered to the bonding cover part and the cover window,
The above adhesive material is,
A first portion interposed between the cover window and the bonding cover portion;
A second part connected to the first part and covering one side of the bonding cover part; and
A third part is included that is connected to the first part and covers the other side of the bonding cover part,
The above first part is in contact with the cover window and the bonding cover part,
The second part is opposite to the third part with the bonding cover part interposed therebetween,
A display device characterized in that the above adhesive member has a shape that surrounds the bonding cover portion. A display device, characterized in that in claim 1, the adhesive member is located at an edge corresponding to the pad portion among the edges of the cover window. In paragraph 1,
An adhesive layer disposed between the cover window and the display panel to adhere the display panel to the cover window; and
Further comprising an adhesive barrier arranged between the cover window and the display panel to adhere the display panel to the cover window and surround the adhesive layer to define a region where the adhesive layer is formed;
A display device, characterized in that at one edge of the cover window adjacent to the pad portion, the adhesive member is closer to the edge of the cover window than the adhesive partition, and the adhesive partition is closer to the edge of the cover window than the adhesive layer. A display device, characterized in that in claim 3, the adhesive partition has a linear shape arranged along the edge of the display panel, and the adhesive layer is surrounded by the adhesive partition and overlaps the display area of the display panel. A display device according to claim 4, characterized in that the adhesive barrier has a closed loop shape. delete In the third paragraph, the adhesive member is,
Connected to the first portion and including a portion adjacent to the adhesive barrier wall more than the first portion,
The portion of the above adhesive member adjacent to the above adhesive barrier is,
A display device characterized by being arranged between the display panel and the cover window around the pad portion. delete A display panel comprising an array substrate having a plurality of pixels, a counter substrate coupled to the array substrate, and a liquid crystal layer between the array substrate and the counter substrate, and having a pad portion to which a driving signal is input;
A cover window adhered to the above display panel and covering the above display panel;
A flexible printed circuit board bonded to the pad portion of the display panel and providing the driving signal toward the display panel;
A bonding cover portion covering the pad portion bonded to the above flexible printed circuit board;
An adhesive layer disposed between the cover window and the display panel to adhere the display panel to the cover window; and
An adhesive barrier is disposed between the cover window and the display panel to adhere the display panel to the cover window and surround the adhesive layer to define an area where the adhesive layer is formed.
The adhesive partition has a linear shape arranged along the edge of the display panel, and a portion of the adhesive partition corresponding to the pad portion is arranged between the cover window and the bonding cover portion and between the cover window and the counter substrate, and is a display device bonded to the cover window, the bonding cover portion, and the counter substrate. A display device, characterized in that in claim 9, the adhesive barrier has a closed loop shape, and the adhesive layer is surrounded by the adhesive barrier and overlaps the display area of the display panel. A display device, characterized in that in claim 9, the width of a portion of the adhesive barrier overlapping the pad portion is larger than the width of another portion of the adhesive barrier. A step of forming a bonding cover portion that covers a pad portion of a display panel bonded to a flexible printed circuit board;
A step of bonding an adhesive material to the back surface of the cover window; and
Including a step of adhering the cover window to the display panel,
When the above cover window is bonded to the display panel, the adhesive member is bonded to the bonding cover portion so that the pad portion is fixed to the cover window,
The above adhesive material is,
A first portion interposed between the cover window and the bonding cover portion;
A second part connected to the first part and covering one side of the bonding cover part; and
A third part is included that is connected to the first part and covers the other side of the bonding cover part,
The above first part is in contact with the cover window and the bonding cover part,
The second part is opposite to the third part with the bonding cover part interposed therebetween,
A method for manufacturing a display device, characterized in that the adhesive member has a shape that surrounds the bonding cover portion. A method for manufacturing a display device, characterized in that in claim 12, the adhesive member is adhered to the back surface of the cover window corresponding to the pad portion. In the 12th paragraph, the step of attaching the cover window to the display panel is,
A step of forming an adhesive resin in a closed loop shape on the display panel along the edge of the display panel;
A step in which the above adhesive resin is cured to form a preliminary adhesive barrier;
A step of providing an adhesive resin within a space defined by the above-mentioned preliminary adhesive barrier to form a preliminary adhesive layer;
A step in which the cover window is bonded to the display panel, and the preliminary adhesive barrier and the preliminary adhesive layer are interposed between the cover window and the display panel; and
A method for manufacturing a display device, characterized in that the above-mentioned preliminary adhesive barrier is cured and the above-mentioned preliminary adhesive layer is cured. A method for manufacturing a display device, characterized in that in claim 14, the pre-adhesive barrier rib is cured to form an adhesive barrier rib, the pre-adhesive layer is cured to form an adhesive layer, the adhesive barrier rib is formed in a linear closed loop shape along an edge of the display panel, and the adhesive layer is formed to overlap a display area of the display panel while being surrounded by the adhesive barrier rib.

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