KR20200075427A - Adhesion means and Manufacturing method of Display Device - Google Patents

Abstract

The present invention provides a display device in which an attachment means is integrally attached to a rear surface of a circuit board such as a flexible printed circuit (FPC) by a liner so that an attachment time of the attachment means is shortened at the rear surface of a display panel, and the panel can be prevented from being damaged by an external force applied to the panel by deforming a removal direction of the liner.

Description

Attachment means and manufacturing method of display device having the same{Adhesion means and Manufacturing method of Display Device}

The present invention relates to an attaching means and a method for manufacturing a display device having the same, and relates to an attaching means for bending a circuit board connected to the display panel and attaching it from the rear surface of the display panel and a manufacturing method for the display device having the same. .

A video display that embodies various information as a screen is developing as a thinner, lighter, and higher performance direction as a core technology in the information and communication era. As a result, a flat panel display capable of reducing weight and volume, which is a disadvantage of a cathode ray tube (CRT), is supplied with light from a light source to display an image, and an organic light-emitting display capable of self-emission to omit the light source unit. Be in the spotlight.

In such a display, a plurality of pixels are arranged in a matrix form to display an image. Here, each pixel includes a light emitting element and a pixel driving circuit composed of a plurality of transistors that independently drive the light emitting element.

Recently, research on thin and light display panels has been actively conducted, and display devices that can bend or fold display panels are being supplied, and display devices that can be imaged in the edge area by bending the edge portion have also been implemented. It is possible.

However, while the display device is thinner and lighter, the circuit board driving the display panel is disposed, and in the process of assembling the circuit board, the circuit board should be attached to the back of the display panel. In addition, in the process of attaching the double-sided tape and removing the release paper on the opposite side, a problem has been pointed out that the panel pattern according to the adhesive force generated when removing the release paper of the double-sided tape between the circuit board and the panel is damaged.

The present invention is to solve this problem, and more specifically, it is possible to shorten the attachment time of the circuit board attached to the back surface of the display panel, and attachment means capable of preventing damage to the panel due to adhesion during the attachment process, and An object of the present invention is to provide a method of manufacturing a display device having the same.

In order to solve such a problem, the present invention attaches the attachment means integrally by the liner to the back surface of a circuit board such as an FPC so as to shorten the attachment time of the attachment means on the back of the display panel, and changes the removal direction of the liner. By providing an attaching means and a method of manufacturing a display device having the same, which can prevent the panel from being damaged by external force.

According to the attachment means of the present invention and a method of manufacturing a display device having the same,

In order to attach the COF to the rear surface of the display panel, since the first adhesive member and the second adhesive member provided on the rear surface of the COF can be simultaneously attached, it is possible to shorten the time for attaching and removing the first attachment means,

After attaching the attachment means, by changing the direction of removing the liner from the rear of the COF, it is possible to prevent the damage between the COF and the display panel due to the adhesive force generated by the removal of the liner,

It is possible to easily attach the adhesive members having different heights or thicknesses by varying the adhesive force between the liner and the adhesive members attached to both sides of the attachment means.

1 is a rear view showing a state before the circuit board is attached from the rear surface of the display device according to the first embodiment of the present invention.
FIG. 2 is a rear view showing a state in which the circuit board is attached to the rear back plate of the display panel on the rear surface of the display device shown in FIG. 1.
FIG. 3 is a cross-sectional view illustrating one cross section before and after bending of the display device shown in FIG. 1 or 2.
FIG. 4A is a partially enlarged view partially enlarged and showing the first attachment means of the display device shown in FIG. 1.
FIG. 4B is a reference diagram for further enlarging a part of the first attachment means of the display device illustrated in FIG. 3.
5 is a rear view showing a state in which the third attachment means is attached to the back surface of the back plate before the circuit board is attached to the back surface of the display device according to the second embodiment of the present invention.
6A to 6D are cross-sectional views showing an attachment procedure of the third attachment means of the display device shown in FIG. 5.
7A to 7D are cross-sectional views showing an attachment procedure of the third attachment means of the display device according to the third embodiment of the present invention.
8 is a block diagram showing a method of manufacturing an attachment means according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described to be easily carried out by those of ordinary skill in the art. It should be noted that, in the accompanying drawings, the same reference numbers are used when designating the same configuration in other drawings. In addition, in the description of the present invention, when it is determined that a detailed description of a related known function or known configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, certain features shown in the drawings are enlarged or reduced or simplified for ease of description, and the drawings and their components are not necessarily drawn to scale. However, those skilled in the art will readily understand these details.

1 is a rear view showing a state before a circuit board is attached from the rear surface of the display device according to the first embodiment of the present invention, and FIG. 2 is a rear surface of the display panel in the back surface of the display device shown in FIG. 1. It is a rear view showing a state attached to the back plate, and FIG. 3 is a cross-sectional view showing one cross section before and after bending of the display device shown in FIG. 1 or 2.

1 to 3, the display device 100 according to the present invention includes a display panel 20, a back plate 40, a chip on film (COF, 30 or less), and a flexible circuit It includes a circuit board (Flexible Printed Circuit, hereinafter, FPC, 50) and attachment means.

First, the display panel 20 displays an image through a pixel array in which sub-pixels are arranged in a matrix form. The basic pixel may be composed of at least three sub-pixels capable of expressing white by color mixing among white (W), red (R), green (G), and blue (B) sub-pixels. For example, the basic pixel is an R/G/B combination subpixel, a W/R/G combination subpixel, a B/W/R combination subpixel, and a G/B/W combination subpixel. Or W/R/G/B combination sub-pixels.

In addition, a power supply unit is provided to generate and output various driving voltages required by a timing controller, a gate driver, a data driver, a display panel, and the like, using an input voltage. For example, the power supply unit includes a driving voltage of a digital circuit supplied to a data driver and a timing controller, a driving voltage of an analog circuit supplied to a data driver, and a gate-on voltage (gate high voltage) and a gate-off voltage used in the gate driver. (Gate low voltage) and the like are generated and supplied. The power supply unit generates a plurality of driving voltages (EVDD, EVSS) and reference voltages required for driving the display panel and supplies them to the display panel 20 through a data driver.

The timing controller receives image data and basic timing control signals from an external system. The system may be any one of a system of a portable terminal such as a computer, a TV system, a set top box, a tablet or a mobile phone. The basic timing control signals may include a dot clock, a data enable signal, a vertical synchronization signal, and a horizontal synchronization signal.

The timing controller uses the basic timing control signals received from the outside and timing setting information (start timing, pulse width, etc.) stored in the internal registers to control the data driver signals and gate drivers, respectively, and gate control data. Generate and supply signals.

In addition, the display panel 20 may include a haptic integrated touch screen, and in this case, a touch screen may be positioned between the cover glass 10 and the display panel 20 protecting the front surface of the display panel. Here, the display panel 20 may be applied to a liquid crystal panel, an organic light emitting panel, or a plasma panel. The cover glass 10 is attached to the front surface of the display panel 20 to form a front appearance of the display device and at the same time protects the display panel.

Also, in the case of a foldable display, the display panel 20 may be folded along a folding line. In fact, when the display panel 20 is folded, it is not folded at a specific line, but is folded with a certain curvature, so that when folded, the curved portion is formed as a certain area. The display panel 20 may be a flexible display panel in which the panel itself can be bent or bent, or the panel itself may be a rigid flat panel display panel that is not easily deformed by external force in a flat state. The flexible display panel 20 itself has flexibility, such as an organic light emitting field display (OLED) panel, an electrophoretic display panel, or an electrochromic display (ECD) panel. Can be implemented.

In addition, the circuit board is for applying an electrical signal to drive the display panel, and includes a circuit patterned substrate and an integrated circuit chip (IC chip) mounted on the substrate. Also, the circuit board includes a main board on which an integrated circuit is mounted, and a connecting board connecting the main board and the display panel 20. The main board is provided with a single-layer or multi-layer wiring pattern, and a rigid printed circuit board (PCB), which itself is difficult to bend or fold, is applied or flexible printed circuit boards having flexibility. Board, FPCB) can be applied. The connection substrate is provided with a single-layer or multi-layer wiring pattern, and is preferably a form that can be bent or folded by itself. An FPC (Flexible Printed Circuit) 50 may be applied as a connection substrate, and a Chip On Film (COF) 30 with a chip mounted on the film may be applied.

The back plate 40 is coupled to the back surface of the display panel 20 to protect the display panel 20 from external forces by supporting the back surface of the display panel 20. In addition, the back plate may be made of aluminum or stainless steel to provide heat dissipation.

Referring to FIG. 2, as one end of the COF 30 is bent around the end of the back plate 40, the COF 30 and the FPC 50 are integrally bent and attached to the back surface of the back plate 40. .

In order for the FPC 50 to be attached to the back surface of the back plate 40, the first attachment means 110 must be attached to the back surface of the FPC 50.

FIG. 4A is a partially enlarged view partially showing the first attachment means 110 of the display device illustrated in FIG. 1, and FIG. 4B further enlarges a part of the first attachment means 110 of the display device illustrated in FIG. 3. This is a reference diagram showing A-A' cross-sectional view of an enlarged portion at the same time.

4A and 4B, the first attachment means 110 includes a first adhesive member 111, a second adhesive member 112 and a first liner 121.

The first adhesive member 111 is attached to an edge region on one side of the back surface of the FPC 50, and the second adhesive member 112 is spaced apart from the first adhesive member 111 in parallel to the other side edge of the rear surface of the FPC 50 It is attached to the area (see Figure 1). The first adhesive member 111 and the second adhesive member 112 have a kind of double-sided tape structure, and more specifically, have a structure in which an adhesive material is applied to both sides of a PET (Polyethylene Terephthalate) material film. For example, a pressure-sensitive adhesive PSA (Pressure　Sensitive　Adhesive) may be applied.

The first adhesive member 111 and the second adhesive member 112 have the same height or thickness, and are simultaneously attached by the first liner 121. Therefore, compared to the process of attaching the adhesive member one by one to the back of the FPC 50, there is an effect that can shorten the attachment time.

As shown in Figure 4b, the upper surfaces of the first adhesive member 111 and the second adhesive member 112 are attached to the rear surfaces of the first liner 121, and after aligning the rear surfaces of the FPC 50 in this state. The back attachment of the first attachment means 110 is made. In addition, the first liner 121 is removed after the first adhesive member 111 and the second adhesive member 112 are attached, and then adheres to the upper surfaces of the first adhesive member 111 and the second adhesive member 112 again. Is provided.

The first liner 121 includes a first extension member 122 to which one surface of the first adhesive member 111 is attached, and a second extension member 123 to which one surface of the second adhesive member 112 is attached. , The third extension member 124 connecting the first extension member 122 and the second extension member 123 to each other, and extending from the third extension member 124 to remove the first liner 121 It includes a fourth extension member 125 to be held by the user or the robot. Then, each other surface of the first adhesive member 111 and the second adhesive member 112 is removed after being attached to both edges of the rear surface of the FPC 50. That is, the first liner 121 grips the fourth extension member 125 and is removed from the third extension member 124 in the direction D1 of the first extension member 122 or the second extension member 123.

Here, the first liner 121 is removed in a direction perpendicular to the longitudinal direction of the display panel 20 and the COF 30 attachment area. This is where the first adhesive member 111 is located at the start point of attaching the display panel 20 and the COF 30, and the second adhesive member 112 is located at the end point of attaching the display panel 20 and the COF 30 to the opposite side. In the process of removing the first adhesive member 111 and the second adhesive member 112 from both sides, the attached portions of the display panel 20 and the COF 30 may be damaged. It is possible to prevent the risk of damage by removing the removal direction in the direction D1 perpendicular to this.

When the first liner 121 is removed in this way, the COF 30 and the FPC 50 are bent along the bending area from the rear surface of the display panel 20, and aligned to the back surface of the back plate 40 to form the first adhesive member ( 111) and the upper surface of the second adhesive member 112 and the back surface of the back plate 40 are made.

At this time, a separate second attachment means 210 is further provided at a position that does not interfere with the attachment areas of the first adhesive member 111 and the second adhesive member 112 on the rear surface of the back plate 40.

The second attachment means (refer to FIG. 1, 210) is attached to the central region of the back plate 40 including the third adhesive member 211 and the second liner 221. The back surface of the third adhesive member 211 is attached to the back surface of the back plate 40, and the second liner 221 is removed from the upper surface of the third adhesive member 211, thereby bending the COF 30 and the FPC 50. This is made, the first adhesive member 111 and the second adhesive member 112 is attached to the back surface of the back plate 40, the third adhesive member 211 is attached to the back surface of the FPC 50, Both sides of the first adhesive member 111 to the third adhesive member 211 are completed.

In addition, the first adhesive member 111 to the third adhesive member 211 may be attached to each other with the same height or thickness, and the first adhesive member 111 and the second adhesive member 112 may have the same height or thickness. Only the third adhesive member 211 may be attached differently in height or thickness. This may be modified to correspond to the height or thickness of the attachment region of the first adhesive member 111 to the third adhesive member 211 between the FPC 50 and the back plate 40, respectively.

5 is a rear view showing a state in which the third attaching means 310 is attached to the back surface of the back plate before the circuit board is attached from the back surface of the display device according to the second embodiment of the present invention. 6D is a cross-sectional view showing the attachment procedure of the third attachment means 310 of the display device shown in FIG. 5.

Referring to the drawings, the display device 300 according to the second embodiment of the present invention includes a third attachment means 310 attached to the back of the back plate 40.

The third attachment means 310 may be provided with a plurality of adhesive members disposed in at least two separate regions, and may be integrally attached to them. In addition, in the first embodiment described above, since the process of attaching the two times to the first attaching means 110 and the second attaching means (see FIG. 2, 210) is integrated into one process, the attaching time can be further shortened. It has the effect.

The third attachment means 310 includes a first adhesive member 311, a second adhesive member 312, a third adhesive member 313, a fourth adhesive member 314, and a first liner 31 And a second liner 322.

At this time, the first adhesive member 311 to the third adhesive member 313 is attached to the back of the back plate 40, the first adhesive member 311 and the second adhesive member 312 are the same height or thickness (hereinafter height) Also referred to as), the third adhesive member 313 has a lower height than the first adhesive member 311 and the second adhesive member 312, so the third adhesive member 313 additionally has a fourth adhesive member 314 ) Is attached so that the first adhesive member 311 to the third adhesive member 313 are formed to have the same height between the first liner 31 and the second liner 322.

Referring to FIG. 6A, a third liner 323 is additionally provided between the third adhesive member 313 and the fourth adhesive member 314.

Accordingly, the heights of the first adhesive member 311 and the second adhesive member 312 are the same, and the height of the third adhesive member 313, the third liner 323, and the fourth adhesive member 314 combined is the first adhesive. It is the same as the height of the member 311 or the second adhesive member 312.

Looking at the attachment order of the third attachment means 310 is as follows.

6B, when the first liner 31 is removed and attached to the back surface of the back plate 40, as shown in FIG. 6C, the first adhesive member 311 to the third adhesive member 313 are simultaneously back plate (40) It is attached to the back. At this time, the adhesive force of the first adhesive surface 11 formed between the first adhesive member 311 to the third adhesive member 313 and the first liner 31 is the smallest.

After the first adhesive member 311 to the third adhesive member 313 is attached to the back surface of the back plate 40, and the second liner 322 is removed, the third liner 322 together with the second liner 322 ) And the fourth adhesive member 314 are removed at the same time.

Here, the adhesive force of the second adhesive surface 21 provided between the other surfaces of the first adhesive member 311 and the second adhesive member 312 and the second liner 322 is the third liner 323 and the third adhesive member It has the same size as the adhesive force of the third adhesive surface 31 provided between (313). In addition, the adhesive force of the second adhesive surface 21 has a size smaller than the adhesive force of the fourth adhesive surface 41 provided between the second liner 322 and the fourth adhesive member 314. Also, the adhesive force of the second adhesive surface 21 is smaller than that of the fourth adhesive surface 41 provided between the fourth adhesive member 314 and the second runner. In this case, since the adhesive force of the second adhesive surface 21 and the fourth adhesive surface 41 must be formed differently, two adhesive layers may be applied to have different adhesive forces. Of course, it is also possible to apply adhesive layers of different adhesive strength in one adhesive layer application process.

Then, as shown in Figure 6d, only the first adhesive member 311 to the third adhesive member 313 remains on the back surface of the back plate 40. In addition, when the FPC 50 is attached to the first adhesive member 311 to the third adhesive member 313 together with the bent COF 30, bending is completed.

7A to 7D are cross-sectional views showing an attachment procedure of the third attachment means 310 of the display device according to the third embodiment of the present invention. The same reference numerals as described above denote the same components.

7A to 7D, in the display device according to the third embodiment of the present invention, the third attachment means 310 includes a fifth adhesive member 415, a fifth adhesive member 415, and a second adhesive member. It includes a fourth liner (424) attached between (312).

A fourth liner 424 is attached to the other surface of the first adhesive member 311, a fifth adhesive member 415 is attached to the opposite side of the fourth liner 424, and the opposite side of the fifth adhesive member 415 is It is attached to the second liner 322. Of course, as shown in FIG. 7A, the heights of the first attachment member, the fourth liner 424, and the fifth attachment member are the same as the heights of the second adhesive member 312, the fourth liner 424, and the fifth attachment member. It is equal to the height of the third adhesive member 313, the third liner 323, and the fourth adhesive member 314 combined.

Referring to Figure 7b, first the first liner 31 is removed. Then, as shown in Figure 7c, the first adhesive member 311, the second adhesive member 312 and the third adhesive member 313 are simultaneously attached to the back surface of the back plate 40.

Then, when the second liner 322 is removed, the third liner 323 and the fourth adhesive member 314 are removed together with the second liner 322 as shown in FIG. 7D, and at the same time, the fourth liner 424 and the second liner 322 are removed. 5 The adhesive member 415 is removed.

Since the order of attaching the FPC 50 is the same as that of the second embodiment, redundant description is omitted.

Here, the adhesive force of the first adhesive surface 11 provided between each one surface of the first adhesive member 311 to the third adhesive member 313 and the first liner 31 is the first adhesive member 311 to the third It has a size smaller than the adhesive force of the second adhesive surface 21 provided between each other surface of the adhesive member 313 and the third liner 323 and the fourth liner 424 to be attached.

In addition, the adhesive force of the second adhesive surface 21 is smaller than the adhesive force of the third adhesive surface 31 provided between each of the fourth adhesive member 314 and the fifth adhesive member 415 and the second liner 322. Have

Therefore, the third adhesive surface 31 provided between the fourth adhesive member 314 and the second liner 322 or between the fifth adhesive member 415 and the second liner 322 has the strongest adhesive force, and each Although the adhesive force of the second adhesive surface 21 is smaller than that of the third adhesive surface 31, the adhesive force between the second adhesive surfaces 21 is formed to be the same.

By varying the adhesive force according to the attachment position in this way, it is possible to clearly separate the part to be removed from the process in which the respective liners are separated and to remain, and each adhesive member can be attached on the back surface of the back plate 40 at a time. have.

Therefore, according to the display device of the present invention, since the first adhesive member and the second adhesive member provided on the rear surface of the COF can be attached at the same time to attach the COF to the display panel, the time for attaching and removing the first attachment means is reduced. It can be shortened, and after attaching the attachment means, by changing the direction of removing the liner from the rear of the COF, it is possible to prevent damage from occurring between the COF and the display panel due to the adhesive force generated by the removal of the liner. There is an effect of easily attaching the adhesive members having different heights or thicknesses by varying the adhesive force between the liner and the adhesive members attached to both sides of the means.

8 is a block diagram showing a method of manufacturing a display device having an attachment means according to an embodiment of the present invention.

Referring to FIG. 8, a method for manufacturing a display device with an attachment means according to an embodiment of the present invention (S100) is a method for manufacturing a display device with an attachment means 310 according to the third embodiment described above. Described as an example.

The manufacturing method (S100) of the display device having the attachment means includes a first attachment step (S110), a second attachment step (S120), a third attachment step (S130), a second liner removal step (S140), and a fourth. Attachment step (S150).

First, in the first attachment step (S110), COF is attached to the rear surface of the display panel. Then, when the first attaching step (S110) is completed, the second attaching step (S120) attaches the back plate to the rear surface of the COF.

Then, when the second attachment step (S120) is completed, the first liner 321 of the attachment means 310 is removed, and the first adhesive member 311, the second adhesive member 312, and the third adhesive member 313 ), a third attachment step (S130) of attaching one surface of the back plate 40 to the set position of the back surface is performed.

Here, the set position of the third attaching step (S130) corresponds to the first adhesive member 311 and the second adhesive member 312, respectively, corresponding to the edge portions on both sides of the rear surface of the FPC 50, and the third adhesive member 313 Corresponds to the position of the COF 30 between the first adhesive member 311 and the second adhesive member 312. Of course, the third attachment step (S130) also corresponds to the attachment position of the first adhesive member 311 to the third adhesive member 313, respectively, when the COF 30 is bent to the back surface of the back plate 40.

When the third attaching step S130 is completed, a second liner removing step S140 of removing the second liner 322 of the attaching means 310 is performed.

In the second liner removal step (S140), the second liner 322 and the attached fourth adhesive member 314 and the fifth adhesive member 415 are removed. Of course, the third liner 323 attached to the fourth adhesive member 314 and the fourth liner 424 attached to the fifth adhesive member 415 are also removed.

When the second liner 322 is removed, as shown in FIG. 3, the other surfaces of the first adhesive member 311, the second adhesive member 312, and the third adhesive member 313 by bending the COF are respectively FPC 50 ) Is attached to the rear surface of the COF 30 and the fourth attachment step (S150).

At this time, in the fourth attachment step (S150), the other surfaces of the first adhesive member 311, the second adhesive member 312, and the third adhesive member 313 are set at the rear side of the FPC 50 and COF 30, respectively. Align step (S151) proceeds to be attached to.

In the alignment step (S151), the other surfaces of the first adhesive member 311 and the second adhesive member 312 are aligned to correspond to both edges of the FPC 50, respectively, and the other surfaces of the third adhesive member 313 are arranged. The faces are aligned to correspond to the center of the rear face of the COF 30.

In addition, the height or thickness of the first adhesive member 311 or the second adhesive member 312 in the fourth attachment step (S150) is greater than the height or thickness of the third adhesive member 313, but the height of the FPC 50 Alternatively, as the COF 30 having a greater thickness is attached to the third adhesive member 313, the attachment height becomes the same.

The description of the adhesive force formed on the adhesive surface in each attaching step is the same as described above, so a duplicate description is omitted.

According to the manufacturing method (S100) of the display device having such attachment means, the adhesive force having different heights or thicknesses can be easily attached by making the adhesive force between the liner and the adhesive members attached to both sides of each adhesive member different. It has the effect.

In the above, in order to illustrate the technical spirit of the present invention, a specific embodiment has been described with reference to the drawings, but the present invention is not limited to the same configuration and effect as the specific embodiment as described above, and various modified examples are the scope of the present invention. It can be carried out within the limits that do not deviate. Therefore, such a modified example should be regarded as belonging to the scope of the present invention, and the true technical protection scope of the present invention should be determined by the technical spirit of the following claims.

100: display device
110: first attachment means
120: second attachment means
130: third attachment means
140: fourth attachment means

Claims (16)

In the FPC coupled to one end of the COF coupled to the back of the display panel, and the attachment means for attaching a back plate coupled to the back of the COF while the COF is bent,
A first adhesive member attached to one side edge of the rear surface of the FPC;
A second adhesive member attached to the other side edge spaced from the one side edge on the rear surface of the FPC, and
A first liner for simultaneously attaching the first adhesive member and the second adhesive member to the FPC while maintaining a predetermined interval;
Attachment means comprising a. The method according to claim 1,
The first liner,
A first extension member to which one side of the first adhesive member is attached,
A second extension member to which one side of the second adhesive member is attached,
A third extension member connecting the first extension member and the second extension member to each other,
A fourth extension member extended from the third extension member and held by a user or a robot to remove the first liner,
Attachment means that is removed after each other surface of the first adhesive member and the second adhesive member is attached to both side edges of the rear surface of the FPC. The method according to claim 2,
A third adhesive member attached to the central area of the back surface of the back plate,
Attachment means further comprises a second liner attached to one surface of the third adhesive member and then removed after attaching the other surface of the third adhesive member to the central area of the back surface of the back plate. The method according to claim 3,
The third adhesive member is an attachment means disposed between the first adhesive member and the second adhesive member while the COF is bent and spaced apart from each other. The method according to claim 4,
The first adhesive member and the second adhesive member are attached to have the same height or thickness, and the third adhesive member is attached to the first adhesive member to have a different height or thickness. The method according to claim 1,
The first liner,
Attachment means that is simultaneously removed from the first adhesive member and the second adhesive member in a direction perpendicular to the longitudinal direction of the display panel and the COF. In the FPC coupled to one end of the COF coupled to the back of the display panel, and the attachment means for attaching a back plate coupled to the back of the COF while the COF is bent,
A first adhesive member attached to the back surface of the back plate to correspond to one edge of the back surface of the FPC;
A second adhesive member attached to the back side of the back plate to correspond to the other side edge spaced from the one side edge on the rear surface of the FPC;
A third adhesive member attached to a central area of the rear surface of the back plate, having a lower height or a smaller thickness than the first adhesive member or the second adhesive member;
A first liner which simultaneously attaches each surface of the first adhesive member, the second adhesive member, and the third adhesive member;
A second liner disposed to face the first liner to simultaneously attach the other surfaces of the first adhesive member, the second adhesive member, and the third adhesive member, and
A fourth adhesive member interposed between the third adhesive member and the second liner to compensate for the height or thickness of the first adhesive member or the second adhesive member and the third adhesive member;
Attachment means comprising a. The method according to claim 7,
Attachment means further comprising a third liner interposed between the third adhesive member and the fourth adhesive member. The method according to claim 8,
A fifth adhesive member provided between the second liner and the first adhesive member and between the second liner and the second adhesive member,
Attachment means further comprising a fourth liner attached between the fifth adhesive member and the second adhesive member. The method according to claim 8,
The adhesive strength of the first adhesive surface provided between each first surface of the first adhesive member to the third adhesive member and the first liner is the third liner attached to each other surface of the first adhesive member to the third adhesive member, and Less than the adhesion of the second adhesive surface provided between the fourth liner,
The adhesive force of the second adhesive surface is smaller than the adhesive force of the third adhesive surface provided between the fourth adhesive member and the fifth adhesive member and the second liner. A first attaching step of attaching COF to the back side of the display panel;
A second attachment step of attaching a back plate to the back side of the COF;
Claims 7 to 10 of claim 1 to remove the first liner of the attachment means according to any one of the first adhesive member and the second adhesive member and one surface of the third adhesive member attached to the set position of the back plate back surface 3 Attachment step and
A second liner removing step of removing the second liner of the attachment means;
A fourth attaching step of removing the second liner and bending the COF to attach the COF and the FPC coupled to one end of the COF to the attaching means;
Method of manufacturing a display device having an attachment means comprising a. The method according to claim 11,
The fourth attachment step,
Method of manufacturing a display device having an attachment means comprising an alignment step of aligning the attachment position of the FPC or COF with each other surface of the first adhesive member, the second adhesive member and the third adhesive member. The method according to claim 12,
The alignment step
Align each other surface of the first adhesive member and the second adhesive member and the edges on both sides of the rear surface of the FPC,
Method of manufacturing a display device having an attachment means for aligning the other surface of the third adhesive member and the rear surface of the COF to be attached. The method according to claim 11,
The second liner removal step,
The first liner and the second liner attached to the fourth liner and the fifth liner, and the third liner attached to the third liner and the fourth liner attached to the second liner are removed simultaneously with the attachment Method of manufacturing a display device having a means. The method according to claim 11,
A method of manufacturing a display device having an attachment means having an adhesive force of a first adhesive surface provided between each one surface of the first to third adhesive members and the first liner smaller than that of the other adhesive surfaces. The method according to claim 14,
The adhesive force of the second adhesive surface provided between the third and fourth liners attached to each other surface of the first to third adhesive members is between the fourth and fifth adhesive members and the second liner. Method of manufacturing a display device having an attachment means smaller than the adhesive force of the third adhesive surface provided in.

Images