KR102200912B1 - Flexible display device and method of manufacturing the same - Google Patents

Abstract

The present invention provides a flexible display device and a manufacturing method for reducing a bezel width and enabling high integration of components. The flexible display device according to the present invention includes a plurality of pixels and a bent portion is formed at the end. A display panel including a first substrate and a second substrate oppositely bonded to the first substrate, a panel driver connected to an end of the first substrate and supplying signals to the pixels, the display panel and the panel A support member having a curved portion formed on a surface facing the bent portion to support the driving portion and guide the bending portion of the bent portion, and having a space inside the bent portion.

Description

A flexible display device and its manufacturing method TECHNICAL FIELD [FLEXIBLE DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME}

The present invention relates to a display device, and more particularly, to a flexible display device capable of reducing a bezel width and a method of manufacturing the same.

In general, a flexible display device is a next-generation display device because pixel cells are implemented on a thin flexible substrate, such as plastic, to display a desired image even when folded or rolled like paper. It is attracting attention, and research and development is underway. Such a flexible display device includes a flexible liquid crystal display device, a flexible organic light emitting display device, a flexible electrophoretic display device, or a flexible electrophoretic display device. Device (flexible electro-wetting display device) or the like.

1 is a cross-sectional view schematically illustrating a general flexible display device.

Referring to FIG. 1, a general flexible display device includes a display panel 10 and a panel driver 20.

The display panel 10 includes a lower substrate 12 and an upper substrate 14 that are opposed to each other.

The lower substrate 12 is made of a thin flexible substrate such as plastic. The lower substrate 12 includes a display area including a plurality of pixels displaying an image, a non-display area surrounding the display area, and a pad portion provided on one side of the non-display area.

For example, in the display area, a gate line and a data line defining a pixel area are cross formed, a thin film transistor is formed in an area where the gate line and the data line cross, and a pixel electrode connected to the thin film transistor is a pixel It is formed in the area. The pad part is formed in a non-display area on one side of the lower substrate 12 so as to be connected to each of the gate line and the data line, and is connected to the panel driver 20.

The upper substrate 14 is made of a thin and transparent flexible substrate such as plastic, and is formed to have a relatively smaller area than the lower substrate 12. The upper substrate 14 is opposed to the lower substrate 12 except for the pad portion of the lower substrate 12 by a bonding member (not shown) formed in a closed loop shape in the non-display area of the lower substrate 12.

An optical film (not shown) may be attached to the upper surface of the upper substrate 14. In this case, the optical film may have a function of preventing polarization and/or reflection of external light.

A metal back plate 13 may be attached to the lower surface of the lower substrate 12, which prevents foreign substances from adhering to the lower surface of the lower substrate 12 and It blocks the emitted light from traveling in the lower direction of the lower substrate 12.

The panel driver 20 is connected to the pad portion of the lower substrate 12 to supply signals to the gate line and the data line. To this end, the panel driving unit 20 may include a flexible circuit board 21, a driving integrated circuit 23, a control board 25, and a driving circuit unit 27.

The flexible circuit board 21 is attached to a pad portion of the lower substrate 12 and is bent toward the lower surface of the lower substrate 12 to surround the side surface of the lower substrate 12.

The driving integrated circuit 23 is mounted on the flexible circuit board 21. The driving integrated circuit 23 generates a data signal and a gate signal for displaying an image on the display panel 10 based on the image data and a timing synchronization signal provided from the control substrate 25 to the pad unit. Supply.

The control board 25 is attached to the flexible circuit board 21 and is disposed on the lower surface of the lower board 12. The control board 25 is connected to a control board (not shown) that generates image data and timing synchronization signals corresponding to an image to be displayed on the display panel 10, and the image data and timing supplied from the control board The synchronization signal is transmitted to the driving integrated circuit 23 through the flexible circuit board 21.

The driving circuit unit 27 is mounted on the control board 25 and is configured to include passive elements such as resistors, capacitors, inductors, and/or integrated circuits (ICs), and the like, the display panel 10 and/or A voltage required for driving the driving integrated circuit 23 is generated.

In such a conventional flexible display device, a desired image is displayed on the display panel 10 by driving each pixel of the display panel 10 according to the driving of the panel driver 20.

However, in the conventional flexible display device, the panel driving unit 20, that is, the flexible circuit board 21 is bent so as to surround the side surface of the lower substrate 12, and thus, a part of the flexible circuit board 21 and the bending part 21a ) Is disposed on the side of the display panel 10, there is a problem that the bezel width (W) increases due to one side of the lower substrate 12 and a part of the flexible circuit board 21 and the bent portion 21a. have.

In addition, since the conventional flexible display device uses the flexible circuit board 21 and the control board 25, the production cost increases due to the increase in the number of parts, and the flexible circuit board 21 is attached to the lower board 12. Yield may be degraded due to bonding failures due to the bonding process performed and the bonding process of attaching the control board 25 to the flexible circuit board 21.

The present invention has been conceived to solve the above-described problem, and it is an object of the present invention to provide a flexible display device and a manufacturing method for reducing a bezel width and enabling high integration of components.

The flexible display device according to the present invention for achieving the above-described technical problem includes a display panel including a first substrate including a plurality of pixels and having a bent portion formed at an end thereof, and a second substrate facing the first substrate, A panel driving unit connected to an end of the first substrate and supplying signals to the pixels, and supporting the display panel and the panel driving unit, and forming a bent part on a surface facing the bending unit to guide bending of the bending unit And a support member having a space inside the bent portion.

The method for manufacturing a flexible display according to the present invention for achieving the above-described technical problem comprises a first substrate including a plurality of pixels and having a first bent portion formed at one end thereof, and a second substrate facing each other to manufacture a display panel. step; Preparing a support member having a space inside the two bent portions by forming a first bent portion and a second bent portion; Attaching the support member to a lower surface of the display panel; Bending the first substrate along the first bent portion to form a first bent portion; And forming a second bent part by bending the flexible circuit board connected to one end of the first bent part along the second bent part.

According to the present invention, the first bent portion of the first substrate constituting the display panel and the second bent portion of the flexible circuit board are directly bent toward the lower surface of the display panel, and the circuit portion of the panel driver extending from the bent portions Since it is disposed on the lower surface of the display panel, the width of the bezel of the display panel may be reduced.

In addition, according to the present invention, the support member has a space inside the support member through the first bent portion and the second bent portion, and by mounting communication components in the space, a more highly integrated and slim display can be made.

1 is a cross-sectional view schematically illustrating a general flexible display device.
2 is a perspective view showing a flexible display device according to the present invention.
3 is a cross-sectional view showing a flexible display device according to the present invention.
4 is a perspective view showing a support member applied to the flexible display device according to the present invention.
5 is a cross-sectional view showing a state in which a bent portion is not bent in the flexible display device according to the present invention.
6 is a cross-sectional view in which a communication component is mounted in a flexible display device according to the present invention.

The meaning of the terms described in this specification should be understood as follows.

Singular expressions should be understood as including plural expressions unless clearly defined differently in context, and terms such as "first" and "second" are used to distinguish one element from other elements, The scope of rights should not be limited by these terms.

It is to be understood that terms such as "comprise" or "have" do not preclude the presence or addition of one or more other features or numbers, steps, actions, components, parts, or combinations thereof.

The term “at least one” is to be understood as including all possible combinations from one or more related items. For example, the meaning of “at least one of the first item, the second item, and the third item” means 2 among the first item, the second item, and the third item as well as each of the first item, the second item, or the third item. It means a combination of all items that can be presented from more than one.

The term "on" is meant to include not only a case where a certain structure is formed on the immediate upper surface of another structure, but also a case where a third structure is interposed between these elements.

Hereinafter, a flexible display device and a manufacturing method thereof according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view showing a flexible display device according to the present invention. 3 is a cross-sectional view illustrating a flexible display device according to the present invention, and is a cross-sectional view illustrating a surface cut in the direction II′ shown in FIG. 2.

2 and 3, the flexible display device according to the present invention includes a first substrate 110 including a plurality of pixels and having a first bent portion 115 formed at one end thereof, and the first substrate 110. A display panel 100 including a second substrate 120 that is oppositely bonded to the substrate 110, is connected to an end of the first bent part 115, and has a second bent part 117. Supports the panel driving unit 200 for supplying a raw signal, the first substrate 110 and the panel driving unit 200, and guides the bending of the first bending unit 115 and the second bending unit 117 Thus, it includes a support member 400 formed to have a bend on a surface facing the bent portion.

First, the display panel 100 will be described as follows.

The display panel 100 may be a flexible flat panel display device. In the following description, the present invention is described assuming that the display panel 100 is an organic light emitting display panel applied to a flexible organic light emitting display device among flexible flat panel display devices. The display panel 100 includes a first substrate 110 and a second substrate 120 that are opposed to each other, and an optical film 150 formed on an upper surface of the second substrate 120.

First, the first substrate 110 is a flexible substrate, and may be made of a plastic material or a metal foil. That is, since the first substrate 110 is formed of a flexible material, it can be bent as shown in FIGS. 2 and 3.

For example, the first substrate 110 made of plastic is made of any one of PI (polyimide), PC (polycarbonate), PNB (polynorborneen), PET (polyethyleneterephthalate), PEN (polyethylenapthanate), and PES (polyethersulfone). Can be done. The first substrate 110 includes a display portion, a non-display portion, a bending portion 115 and a pad portion 116.

The display unit of the first substrate 110 includes a plurality of gate lines (not shown), a plurality of data lines (not shown), a plurality of driving power lines (not shown), a plurality of pixels (not shown), and a cathode power line ( Not shown).

Each of the plurality of gate lines is formed at regular intervals to cross each of the plurality of data lines, and each of the plurality of driving power lines is formed to be parallel to the plurality of gate lines or each of the plurality of data lines.

Each of the plurality of pixels is formed in a pixel region defined by the intersecting gate line and the data line, and displays an image according to a gate signal from the gate line and a data signal from the data line. To this end, each of the plurality of pixels includes a pixel driving circuit (not shown) connected to the gate line and the data line, and an organic light emitting device (not shown) connected to the pixel driving circuit and connected to the cathode power line. Done.

The pixel driving circuit includes a switching transistor (not shown) connected to the gate line and the data line, a driving transistor (not shown) connected to the switching transistor, and a capacitor (not shown) connected to a gate electrode and a source electrode of the driving transistor. Poetry).

The pixel driving circuit supplies a data signal supplied to the data line to the driving transistor according to switching of the switching transistor according to a gate signal supplied to the gate line, and the driving transistor corresponding to the data signal The gate-source voltage of is stored in the capacitor.

By turning on the driving transistor with the voltage stored in the capacitor, a data current corresponding to the data signal is supplied to the organic light emitting diode. Here, the transistor may be an a-Si TFT (thin film transistor), a poly-Si TFT, an oxide TFT, or an organic TFT.

Meanwhile, the pixel driving circuit may further include at least one compensation transistor and at least one compensation capacitor for compensating the threshold voltage of the driving transistor.

The organic light emitting device includes a pixel electrode (or an anode electrode) connected to the driving transistor, an organic light emitting layer (not shown) formed on the pixel electrode, and a cathode electrode (not shown) formed on the organic light emitting layer. The organic light-emitting device emits light with a luminance corresponding to the data current by emitting light by a current flowing from the pixel electrode to the cathode electrode by turning-on of the driving transistor on the upper portion of the second substrate 120. Radiates to the side.

The cathode power line may be formed on the entire surface of the display to be electrically connected to the cathode electrode of each pixel, or to be electrically connected to cathode electrodes of pixels formed on a vertical or horizontal line of the display, in a pattern form. Can be formed. The cathode power line may be formed to be electrically connected to the organic emission layer of each pixel, and in this case, the cathode electrode is omitted.

The non-display portion is provided in a peripheral area of the display portion so as to surround the display portion. Here, the non-display portion may be defined as an area overlapping the edge portion of the second substrate 120.

A plurality of link lines (not shown) electrically connected to each of the plurality of gate lines, the plurality of data lines, the plurality of driving power lines, and the cathode power lines formed on the display unit are formed on one side of the non-display unit Has been.

The bent part 115 extends from one side of the non-display part to have a certain area and is bent toward the bottom surface of the first substrate 110. Here, the bending unit 115 may be bent to have a certain curvature by a substrate bending device (not shown). A plurality of extension lines (not shown) electrically connected to each of the plurality of link lines are formed in the bending part 115.

The pad portion 116 of the first substrate 110 is electrically connected to the flexible circuit board 220 of the panel driver 200.

However, the driving integrated circuit 210 of the panel driving unit 200 may be directly connected to the pad unit 116. That is, in FIGS. 2 and 3, the flexible circuit board 220 is electrically connected through the pad part 116, and the driving integrated circuit 210 is mounted on the flexible circuit board 220. , The present invention is not limited thereto.

For example, the driving integrated circuit 210 may be mounted on the pad portion 116 formed on the first substrate 110. In this case, the length of the first substrate 110 is further extended, and the pad portion 116 is further bent so as to be positioned on the lower surface of the display panel 100. In addition, the driving integrated circuit 210 is electrically connected to the pad unit 116 rather than the flexible circuit board 220. Second, the second substrate 120 is made of a transparent plastic material, and the second 1 It is formed to have a relatively smaller area than the substrate 110. The second substrate 120 is formed by a bonding member (not shown) formed on a non-display portion of the first substrate 110 in a closed loop form, so that the second substrate 120 and the inner portion of the bending portion 115 of the first substrate 110 The opposite is cemented.

The bonding member faces the first substrate 110 and the second substrate 120 and protects the organic light emitting device from external moisture or oxygen. 2 Seal the space between the substrates 120.

That is, the second substrate 120 may perform the function of an encapsulation substrate (encap) sealing the first substrate 110.

Third, the optical film 150 is formed to have a function of preventing reflection of polarized light and/or external light, and is attached to the upper surface of the second substrate 120. Such an optical film may be omitted.

Next, the panel driver 200 will be described as follows.

The panel driver 200 may include the flexible circuit board 220 and the driving integrated circuit 210.

First, a chip on film (COF) or a flexible printed circuit (FPC) may be applied to the flexible circuit board 220, and a data signal for emitting pixels of the display panel 100 to the flexible circuit board 220 And the driving integrated circuit 210 that supplies a gate signal (hereinafter, simply referred to as a'signal') may be mounted.

One side of the flexible circuit board 220 is electrically connected to the pad portion 116 of the first substrate 110.

Second, the driving integrated circuit 210 is mounted on the flexible circuit board 220 by a chip bonding process or a surface mounting process, and bonded to a plurality of signal supply terminals and a plurality of signal input terminals.

The driving integrated circuit 210 supplies the data signal and the gate signal to a corresponding signal supply terminal based on image data and a timing synchronization signal generated and supplied from the outside through a plurality of signal input terminals, and the An image corresponding to the image data is displayed on the display unit by driving each of the pixels formed on the display unit of the first substrate 110.

However, the panel driver 200 is not limited to the above-described configuration. That is, the panel driver 200 may be configured in various forms.

As described above, the first embodiment of the panel driver 200 may include the flexible circuit board 220 and the driving integrated circuit 210.

The second embodiment of the panel driver 200 may include only the driving integrated circuit 210. That is, since the flexible circuit board 220 is electrically connected to the pad unit 116, the driving integrated circuit 210 may be electrically connected to the first substrate 110, or the driving integrated circuit ( 210 may be directly connected to the pad portion 116 formed on the first substrate 110. In this case, the length of the first substrate 110 is further extended and the pad portion 116 is displayed. It is further bent so as to be positioned on the lower surface of the panel 100. In addition, the driving integrated circuit 210 is directly connected to the pad unit 116 located on the lower surface of the display panel 100.

In addition to the above-described embodiments, the panel driving unit 200 may be formed in various shapes.

Finally, the support member 400 will be described as follows.

First, the support member 400 is formed by bending (bending) a metal plate. That is, the support member 400 is formed by bending (bending) one end of a metal material such as stainless steel or a bendable synthetic resin, as shown in FIGS. 2 and 3.

Second, the support member 400 extends from the first support portion 410 attached to the lower surface of the display panel 100 and the first support portion 410 and is bent at the position of the first bent portion 440a, A second support part 420 supporting the pad part 116 and a third support part extending from the second support part 420 and bent at a position of the second bent part 440b, and supporting the panel driving part 200 Includes 430.

When the support member 400 is formed of a metal material, the support member 400 may perform a heat dissipation function of dissipating heat generated from the display panel 100.

In addition, the support member 400 prevents foreign substances from adhering to the lower surface of the first substrate 110 and the light emitted from the display area of the first substrate 120 is prevented from being attached to the lower surface of the second substrate 120. It can replace a back plate that has the function of blocking progression in the direction.

Third, the support member 400 has a space S formed therein through the first bent portion 440a and the second bent portion 440b.

An image data signal and a timing control signal for displaying an image on the display panel 100 are input from an external communication component (not shown) including various driving elements, and the signals are a driving integrated circuit of the panel driver 220 It is input to the display panel 100 through 210.

Here, the communication component may be mounted in the space S formed in the support member 400, and through this, a more integrated and slim display can be made.

Fourth, in FIGS. 2 and 3, the length L of the first support part 410 is longer than the length of the third support part 430, but the length of the third support part 430 may be longer. . In addition, although the first support part 410 is shown to support only a part of the lower surface of the display panel 100, the present invention is not limited thereto. That is, the first support part 410 may be formed to have a size capable of supporting the entire lower surface of the display panel 100.

Although the width W of the first support part 410 and the width of the second support part 430 are the same, one of the two support parts may be larger or smaller.

Fifth, the display panel 100 and the panel driver 200 may be attached to the support member 400 by an adhesive member.

For example, when the display panel 100 is completed, the first support part 410 of the support member 400 is attached, wherein the display panel 100 and the first support part 410 1 It is fixed by the adhesive member 130. The first adhesive member 130 may use a liquid adhesive solution. The first adhesive member 130 may be first applied to the lower surface of the display panel 100 or the upper surface of the first support part 410 before the display panel 100 and the first support part 410 are attached. have. The first adhesive member 130 may be applied to the same area as the display panel 100 or may be applied only to a partial area of the display 100.

The first substrate 110 and the flexible circuit board 220 are electrically connected through the pad portion 116, wherein the pad portion 116 is the support member through the second adhesive member 300. It is fixed to the second support 420 of the 400. The second adhesive member 300 may be used as an adhesive tape or a thin plate having adhesiveness on both sides. Before the pad part 116 is attached to the second support part 420, the second adhesive member 300 may be first attached to the pad part 116 or the second support part 420.

The driving integrated circuit 210 of the flexible circuit board 220 is provided with a third support part of the support member 400 through a third adhesive member 310, a fourth adhesive member 320, and a cushion pad 240. 430). The third adhesive member 310 and the fourth adhesive member 320 may be used as an adhesive tape or a thin plate having adhesiveness on both sides, like the second adhesive member 300, and the cushion pad ( 240) is formed of various materials having a cushion, and may be, for example, latex, sponge, urethane foam, which is a foamable resin, EVA, silicone, or a tape having a cushion. The cushion pad 240 formed of a material having a cushion may absorb an impact applied to the flexible circuit board 220 or the driving integrated circuit 210.

In addition, the third adhesive member 310, the fourth adhesive member 320, and the cushion pad 240 prevent the flexible circuit board 220 from being damaged by the impact of the lower surface of the support member 400. You may. That is, since the flexible circuit board 220 is formed of a thin film, it is easy to be damaged by the minute protrusions formed on the lower surface of the support member 400. Accordingly, the cushion pad 240 having the third adhesive member 310 and the fourth adhesive member 320 attached to both sides is inserted between the lower surface of the support member 400 and the flexible circuit board 220 By doing so, damage as described above can be prevented.

As another example, the first substrate 110 may extend to a lower surface of the support member 400 so that the driving integrated circuit 210 may be directly connected to the pad portion 116 of the first substrate 110. . In this case, the cushion pad 240 to which the third adhesive member 310 and the fourth adhesive member 320 are attached may be positioned between the pad portion 116 and the third support portion 430. .

4 is a perspective view showing a support member applied to the flexible display device according to the present invention, FIG. 5 is a cross-sectional view showing a state in which a bent portion is not bent in the flexible display device according to the present invention, and FIG. 6 is a flexible display device according to the present invention. After the bending part is bent in the display device, the image is displayed on the panel driving part 200.

A cross-sectional view of a communication component that supplies a data signal and a timing signal is mounted inside the support member 400.

The manufacturing method of the flexible display device according to the present invention described above will be described as follows.

First, the first substrate 110 including a plurality of pixels and having the first bent portion 115 formed at one end thereof and the second substrate 120 are bonded to each other to form the display panel 100. To manufacture.

Here, the panel driving part 200 is connected to the pad part 116 extending from the first bending part 115.

When the flexible circuit board 220 is connected to the pad part 116, the second adhesive member 300 is attached to the other side of the flexible circuit board 220 to which the flexible circuit board 220 is not connected. Can be. Alternatively, the second adhesive member 330 may be attached to the second support part 420 of the support member to which the pad part 116 is to be attached. In addition, the third adhesive member 310 and the fourth adhesive member 320 are attached to both surfaces of the cushion pad 240, and one surface is attached to the flexible circuit board 220. The driving integrated circuit 210 is also connected to the flexible circuit board 220.

As another example, the first substrate 110 may extend to a lower surface of the support member 400 and the driving integrated circuit 210 may be directly connected to the pad unit 116. In this case, the first substrate 110 is bent at the first bent portion 440a and the second bent portion 440b of the support member 400 and is positioned on the lower surface of the support member 400. In addition, the third adhesive member 310 and the fourth adhesive member 320 are attached to both surfaces of the cushion pad 240 and one surface is attached to the first substrate 110. In addition, the driving integrated circuit 210 is also connected to the first substrate 110.

Next, the support member 400 having two bent portions is prepared. The support member 400, as shown in Fig. 4, through a process of bending in the same direction in the first bent portion 440a and the second bent portion 440b, the first supporting portion 410, the second It includes a support part 420 and a third support part 430. And through two bending processes, a space is formed inside.

Next, as shown in FIGS. 5 and 6, the support member 400 is attached to the lower surface of the display panel 100 through the first adhesive member 130.

Next, the first bent portion 115 of the first substrate 110 and the second bent portion 117 of the flexible circuit board 220 are formed on the side surface of the support member 400. ) And the second bent portion 440b. Through this step, the pad part 116 is in close contact with the second support part 420 of the support member to form a thin bezel width.

Finally, as shown in FIGS. 2 and 3, the ends of the two bent portions are brought into close contact with the lower surface of the support member 400.

That is, the fourth adhesive member 320 of the cushion pad 240, which is not yet attached to both sides, is attached to the third support portion 430 of the support member. Here, the cushion pad 240 may be first attached to the lower surface of the support member and then attached to the flexible circuit board 220.

Finally, an external communication component (not shown) that transmits an image data signal and a timing control signal for displaying an image on the display panel 100 to the panel driver 200 is mounted. Here, the communication component may be mounted in the space S formed in the support member 400, and through this, a more highly integrated and slim display can be made.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and that various substitutions, modifications, and changes are possible within the scope of the technical matters of the present invention. It will be obvious to those who have the knowledge of. Therefore, the scope of the present invention is indicated by the claims to be described later, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

100: display panel 110: first substrate
120: second substrate 150: optical member
130: first adhesive member 115: first bending portion
116: pad portion 117: second bending portion
200: panel driver 210: driving integrated circuit
220: flexible circuit board 240: cushion pad
400: support member 410: first support
420: second support 430: third support
440a: first bent portion 440b: second bent portion
300: second adhesive member 310: third adhesive member
320: fourth adhesive member 500: communication circuit

Claims (11)

A display panel including a first substrate including a plurality of pixels and pad portions, and having a first bent portion formed at an end thereof, and a second substrate facing the first substrate;
A panel driver connected to an end of the first substrate and including a flexible circuit board having a second bent portion formed thereon and a driving integrated circuit supplying signals to the pixels; And
A flexible display device comprising a support member that supports the display panel and the panel driver, has a bent portion formed on a surface facing the first and second bent portions, and has a space inside the bent portion . The method of claim 1,
The panel driving unit is attached to a side surface and a lower surface of the support member by an adhesive member. The method of claim 1,
The panel driving unit,
The flexible circuit board connected to the pad part extending from the bend part; And
And the driving integrated circuit mounted on the flexible circuit board,
The pad portion formed on the first substrate and the flexible circuit board connected to the pad portion are attached to side surfaces and lower surfaces of the support member by an adhesive member. The method of claim 3,
The adhesive member,
A second adhesive member attached between the side surface of the support member and the pad part to arrange the pad part on the side surface of the support member; And
The flexible display device further comprising a third adhesive member and a fourth adhesive member attached between the flexible circuit board and a lower surface of the support member to place the driving integrated circuit on the lower surface of the support member. The method of claim 4,
The second to fourth adhesive members are formed of an adhesive tape or an adhesive solution containing an adhesive material on both sides, and a cushion pad is attached to one surface of the third adhesive member and the fourth adhesive member, so that the driving integrated circuit is A flexible display device that prevents hitting the support member. The method of claim 1,
The bent portion includes a first bent portion that bends the first substrate and a second bent portion that bends the flexible circuit board, and a communication circuit is mounted in the space inside the bent portion The method of claim 1,
The support member,
A first support attached to a lower surface of the display panel;
A second support portion facing the pad portion; And
A flexible display device including a third support portion extending from the second support portion and formed to face the first support portion at a distance. Manufacturing a display panel by confronting a first substrate including a plurality of pixels and having a first bent portion formed at one end thereof and a second substrate;
Preparing a support member having a space inside the two bent portions by forming a first bent portion and a second bent portion;
Attaching the support member to a lower surface of the display panel;
Bending the first substrate along the first bent portion to form a first bent portion; And
And forming a second bend part by bending a flexible circuit board connected to one end of the first bend part along the second bend part. The method of claim 8,
In the step of bending the first substrate along the first curved portion, a pad portion to which the first substrate and the flexible circuit board are connected to the side of the support member,
In the step of bending the flexible circuit board connected to one end of the bending part along the second bent part, the driving integrated circuit formed on the flexible circuit board is in close contact with the lower surface of the support member. The method of claim 9,
A flexible display in which the first substrate is bent along the first bent portion and the pad portion is attached to the side surface of the support member in a state in which an adhesive member first adhered to either the pad portion or the side surface of the support member is present The method of manufacturing the device. The method of claim 1,
The driving integrated circuit is disposed between the support member and the flexible circuit board.

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