KR20190126746A - Display device and manufacturing method thereof - Google Patents

Abstract

A flexible display apparatus according to an embodiment of the present invention, in order to provide the proper radius of curvature, comprises a protective film and a display panel. The protective film includes a carrier film, and an adhesive layer placed on the carrier film and including a plurality of adhesives spaced apart from each other.

Description

Display device and manufacturing method thereof {DISPLAY DEVICE AND MANUFACTURING METHOD THEREOF}

The present invention relates to a display device and a method of manufacturing the same.

Currently known display devices include liquid crystal displays (LCDs), plasma display panels (PDPs), organic light emitting diode devices (OLED devices), field effect displays (field effects). display (FED), an electrophoretic display device, and the like.

In particular, the organic light emitting diode display includes two electrodes and an organic light emitting layer disposed between the two electrodes, and electrons injected from one electrode and holes injected from another electrode are combined in the organic light emitting layer to excite ( exciton) and the excitons emit light while releasing energy.

The organic light emitting diode display has a self-luminance characteristic and, unlike the liquid crystal display, does not require a separate light source, thereby reducing thickness and weight. In addition, the organic light emitting diode display has attracted attention as a next generation display because it exhibits high quality characteristics such as low power consumption, high luminance, and fast response speed.

On the other hand, while the display device is used as a display device of a television receiver, the size of the screen is increasing. As the size of the display device increases, a problem arises in that a difference in visual angle increases when the viewer views the center of the screen and when viewing the left and right ends of the screen.

In order to compensate for this visual difference, the display device may be curved to be concave or convex to form a curved surface. The display device may be a portrait type having a length longer than the width and bent in a vertical direction on the basis of the viewer, or may be a landscape type curved in the horizontal direction with a length smaller than the length. have.

However, when the display device is bent to form a curved shape, the radius of curvature that is bent by the protective film is limited, and thus there is a limitation that the radius of curvature that the user or manufacturer does not reach is required.

The present invention is to solve the above problems, to provide a display device and a manufacturing method thereof comprising a protective film that is easy to adjust the radius of curvature.

A display device according to an exemplary embodiment of the present invention includes a protective film and a display panel, and the protective film includes a carrier film and an adhesive layer including a plurality of adhesives positioned on the carrier film and spaced apart from each other.

The protective film may further include a release film disposed on the pressure-sensitive adhesive layer.

The carrier film may include a hydrophobic region and a hydrophilic region, and the plurality of pressure-sensitive adhesives may be located in any one of the hydrophobic region and the hydrophilic region.

The plurality of adhesives may be located in the hydrophilic region.

The plurality of pressure-sensitive adhesives may be embossed.

The carrier film may include at least one of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene sulfide (PES) and polyethylene (PE; polyethylene).

The protective film may be located on one surface of the display panel.

A method of manufacturing a display device according to an exemplary embodiment of the present invention includes preparing a display panel and attaching a protective film to one surface of the display panel, wherein the protective film is formed on a carrier film and the carrier film. And a pressure-sensitive adhesive layer including a plurality of pressure-sensitive adhesives positioned and spaced apart from each other.

The carrier film may be prepared by surface treating one surface of the carrier film with a hydrophilic region and a hydrophobic region.

Surface treatment of one surface of the carrier film may use a plasma treatment.

The plurality of pressure-sensitive adhesives may be located in any one of the hydrophilic region and the hydrophobic region.

The plurality of adhesives may be located in the hydrophilic region.

The plurality of pressure-sensitive adhesives can be prepared using discontinuous spray units.

Curing the pressure-sensitive adhesive layer, and may further comprise the step of removing the release film is located on the pressure-sensitive adhesive layer.

The plurality of pressure-sensitive adhesives may be embossed.

The protective film as described above may provide a curved display device and a method of manufacturing the same having excellent flexibility, thereby easily controlling the radius of curvature.

1 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
2 is a cross-sectional view of a protective film according to an embodiment of the present invention.
3 is a perspective view of a carrier film and an adhesive layer according to an embodiment of the present invention.
4 is a circuit diagram of a display device according to an exemplary embodiment of the present invention.
5 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
6 is a conceptual diagram of a manufacturing process of a protective film according to an embodiment of the present invention.
7 to 8 are cross-sectional views of the injection unit according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to the illustrated.

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. In the drawings, the thicknesses of layers and regions are exaggerated for clarity. When a portion of a layer, film, region, plate, or the like is said to be "on" or "on" another portion, this includes not only when the other portion is "right over" but also when there is another portion in the middle.

In addition, throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding the other components unless otherwise stated. In addition, throughout the specification, "on" means to be located above or below the target portion, and does not necessarily mean to be located above the gravity direction.

Hereinafter, a display device according to an exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 5. 1 is a cross-sectional view of a display device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of a protective film according to an embodiment of the present invention, and FIG. 3 is a carrier film and an adhesive layer according to an embodiment of the present invention. 4 is a circuit diagram of a display device according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view of the display device according to an embodiment of the present invention.

First, referring to FIG. 1, the display device includes a display panel 100 displaying an image, for example, an organic light emitting display panel, and a lower protective film 10 attached under the display panel 100.

1 and 2, the protective film 10 includes a carrier film 11, an adhesive layer 12, and a release film 14.

The carrier film 11 includes at least one of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene sulfide (PES), and polyethylene (PE). can do.

The carrier film 11 may have a thickness of 25 micrometers (μm) to 300 micrometers (μm). When the thickness of the carrier film 11 is smaller than 25 μm, it is too thin to serve as a lower protective film protecting the lower portion of the organic light emitting display device, and when the thickness of the carrier film 11 is larger than 300 μm, the display device When the lower protective film is attached to the OLED display, the thickness of the OLED display may increase unnecessarily.

The carrier film 11 may include a hydrophobic region and a hydrophilic region on one surface of the film according to a predetermined treatment. In the present specification, only one surface of the carrier film 11 is plasma-treated to have hydrophobicity and hydrophilicity, but the configuration is not limited thereto. Any method may be used. In addition, as an example of the present invention, the carrier film 11 is separated into only the hydrophilic region and the hydrophobic region, but other physical properties that can be divided into separate regions are also applicable.

One surface of the carrier film 11 in which the pressure-sensitive adhesive layer 12 is located has both hydrophobic and hydrophilic properties, and the pressure-sensitive adhesive layer 12 to be described later may be located in a region corresponding to any one of hydrophobicity and hydrophilicity. The one surface is one surface facing the display panel 100.

Since the pressure-sensitive adhesive layer 12 is attached to the display panel and maintained while the process is performed, the pressure-sensitive adhesive layer 12 needs to be peeled off when the cell cutting process is completed.

Specifically, since the lower protective film 10 should be permanently attached to the display substrate, the pressure-sensitive adhesive layer 12 has a strong adhesive force. That is, since the lower protective film 10 should not be peeled off or dropped during the manufacturing process, the pressure-sensitive adhesive layer 12 may be an acryl-based strong adhesive film, and the pressure-sensitive adhesive force of the pressure-sensitive adhesive layer 12 may be a stainless steel adhesive. In the case of steel (steel use stainless, SUS) may be more than 500 gf / inch.

When the pressure-sensitive adhesive layer 12 is a stainless steel (SUS), the pressure-sensitive adhesive layer 12 may have an adhesive force of 1 to 500 gf / inch. The adhesive layer 12 should have an adhesive force of at least 1 gf / inch in order to maintain adhesion during the process, and if the adhesive force exceeds 500 gf / inch, the protective film 10 is peeled off or outlined during the process. This is because damage to the thin film encapsulation layer 40 (surface peeling, etc.) is caused when the dropping phenomenon or the protective film 10 is removed.

Meanwhile, the adhesive layer 12 may have an adhesive force of 3.7 to 8.4 gf / inch when polyethylene terephthalate (PET) is an adhesive.

Improving Repulsion Resistance of the pressure-sensitive adhesive layer 12 to prevent the display substrate 20 and the lower protective film 10 of the organic light emitting display panel 100 from being separated from each other even when the lower protective film 10 is bent. do.

The adhesive layer 12 according to an embodiment of the present invention may be positioned on the carrier film 11 in a discontinuous form. Specifically, as illustrated in FIGS. 2 and 3, the pressure-sensitive adhesive layer may include a plurality of pressure-sensitive adhesives spaced apart from each other.

As an example, the plurality of pressure-sensitive adhesives may have a circular cross section, and the cross-sectional plane to the overall pressure-sensitive adhesive layer may have an emboss shape. This is because when the plurality of pressure-sensitive adhesives have a convex shape while being spaced apart from each other, the flexibility is superior to the pressure-sensitive adhesive having a single area. However, the shape of the plurality of pressure-sensitive adhesives is not limited thereto, and any shape positioned between the carrier film and the release film while being spaced apart from each other is possible.

Adjacent pressure-sensitive adhesives of the plurality of pressure-sensitive adhesives are spaced apart at the same similar intervals, and may have the same intervals, shapes, and the like. However, it is of course also possible for the plurality of pressure-sensitive adhesives to have different sizes and different spacings, respectively. This is because the distance between the plurality of pressure-sensitive adhesives, the relative size, and the like may be adjusted to have physical properties necessary for the protective film and the display device to have flexibility.

On the other hand, spaces spaced by a plurality of pressure-sensitive adhesives are similar in size and spacing to each other, for example, may have the same spacing. The impact applied to the carrier film 11 may be absorbed through such spaced spaces. According to the protective film 10 having no spaced apart as a comparative example, when an impact is applied to the carrier film 11 or the like, the impact is transmitted to the pressure-sensitive adhesive layer 12 as it is, which causes the impact to the display panel 100 again. To pass.

However, according to the exemplary embodiment of the present invention, the protective film may include spaced spaces, and even if an impact is transmitted to the carrier film 11 or the like, the adhesive may not be positioned in the corresponding region, so that the protective film may be impacted by the display panel 100. Delivery can be prevented.

The pressure-sensitive adhesive may be formed by any method to have a shape as shown in FIGS. 1 to 3, and for example, the pressure-sensitive adhesive layer 12 may have a hydrophilic region and a region treated to have hydrophobicity of the carrier film 11. It can be located in any one of the areas treated so that. In particular, it may be located in a region treated to have hydrophilicity as an example. As such, when positioned in only one region while having hydrophilicity or hydrophobicity, a plurality of pressure-sensitive adhesives may be formed as shown in FIG. 3. Alternatively, the plurality of pressure-sensitive adhesives may be located in only one region through a plurality of regions having distinct physical properties.

Alternatively, in order for the pressure-sensitive adhesive layer 12 to have a shape as described above, the type of the spray unit to which the pressure-sensitive adhesive is applied can be changed. When the pressure-sensitive adhesive is applied through the discontinuous spray nozzle shown in FIG. 7 to be described later, a plurality of spaced pressure-sensitive adhesives may be formed without surface treatment. As such, even when the pressure-sensitive adhesive layer 12 is formed in a spaced apart shape through selection of the spray unit, surface treatment of the carrier film 11 may be unnecessary.

According to the protective film 10 including the pressure-sensitive adhesive layer 12 which is circularly spaced apart discontinuously as in an embodiment of the present invention, instead of the pressure-sensitive adhesive layer generally positioned on the carrier film 11, the protective film 10 The flexibility of the device attached to) is improved. Therefore, in providing a flexible display device, it is possible to provide a display device having various radii of curvature.

In addition, the protective strength of the protective film 10 is improved to reduce the impact on the display panel. This is because when the impact is applied to the other surface of the carrier film 11, the shock is absorbed between the spaced apart adhesives, thereby reducing the impact on the display panel itself.

The release film 14 is a protective paper for preventing contamination of the pressure-sensitive adhesive layer 12 and external contact. The release film 14 is positioned on the adhesive layer 12 before the protective film 10 is attached to the display panel, and then removed to attach to the display panel so that the adhesive layer 12 is attached to the display panel.

The lower protective film 10 is attached to the lower substrate 14 of the organic light emitting display panel 100 by removing the release film 14, specifically, the adhesive layer 12 of the lower protective film 10. The display substrate 20 is attached.

As such, by attaching the lower protective film 10 under the display substrate 20, since the display substrate 20 may not be in direct physical contact with the outside, physical damage of the display substrate 20 may be prevented, and the organic light emitting display Handling of the device is also facilitated.

Next, referring to FIG. 1, the organic light emitting display panel 100 includes a display substrate 20, an organic light emitting element 30 formed on the display substrate, a thin film encapsulation layer 40 covering the organic light emitting element, and a thin film. And an upper protective film 50 attached on the encapsulation layer.

The display substrate 20 is a transparent substrate and may be a flexible substrate such as a polymer film.

The organic light emitting diode 30 includes a plurality of signal lines 121, 171, and 172 and pixels PX connected thereto. Referring to FIG. 4, the pixel PX may be any one of a red pixel R, a green pixel G, and a blue pixel B. FIG. The signal line includes a scanning signal line 121 for transmitting a gate signal (or a scanning signal), a data line 171 for transmitting a data signal, and a driving voltage line for transmitting a driving voltage. (172) and the like. The scan signal lines 121 extend substantially in the row direction and are substantially parallel to each other, and the data lines 171 extend substantially in the column direction and are substantially parallel to each other. Although the driving voltage line 172 is shown to extend substantially in the column direction, the driving voltage line 172 may extend in the row direction or the column direction or may be formed in a net shape.

One pixel PX includes a thin film transistor including a switching transistor Qs and a driving transistor Qd, a storage capacitor Cst, and an organic light emitting element. (LD).

The switching transistor Qs has a control terminal N1, an input terminal N2, and an output terminal N5, and the control terminal N1 has a scan signal line 121. The input terminal N2 is connected to the data line 171, and N3 is connected to the driving transistor Qd. The switching transistor Qs transfers the data signal received from the data line 171 to the driving transistor Qd in response to the scan signal received from the scan signal line 121.

The driving transistor Qd also has a control terminal N3, an input terminal N4 and an output terminal N5, where the control terminal N3 is connected to the switching transistor Qs, and the input terminal N4 is driven. The output terminal N5 is connected to the organic light emitting element LD. The driving transistor Qd flows an output current I _LD whose magnitude varies depending on the voltage applied between the control terminal N3 and the output terminal N5.

The capacitor Cst is connected between the control terminal N3 and the input terminal N4 of the driving transistor Qd. The capacitor Cst charges a data signal applied to the control terminal N3 of the driving transistor Qd and maintains it even after the switching transistor Qs is turned off.

The organic light emitting element LD is an organic light emitting diode (OLED), for example, and is connected to an anode connected to the output terminal N5 of the driving transistor Qd and to a common voltage Vss. It has a cathode. The organic light emitting element LD displays an image by emitting light having a different intensity depending on the output current I _LD of the driving transistor Qd. The organic light emitting element LD may include an organic material that uniquely emits light of one or more of primary colors such as three primary colors of red, green, and blue, and the organic light emitting diode display may include the spatial The desired image is displayed as the sum.

The switching transistor Qs and the driving transistor Qd are n-channel field effect transistors (FETs), but at least one of them may be a p-channel field effect transistor. In addition, the connection relationship between the transistors Qs and Qd, the capacitor Cst, and the organic light emitting element LD may be changed.

The thin film encapsulation layer 40 faces the display substrate 20 and protects the organic light emitting device 30 by preventing oxygen and moisture from being introduced from the outside.

The thin film encapsulation layer 40 is a thin film, and is likely to be damaged due to external scratches or scratches caused by foreign substances generated during the process. This appears as a defect such as dark spots on the display.

The upper protective film 50 positioned on the thin film encapsulation layer 40 may be a functional film such as a polarizing film. The polarizing film passes light in the same axial direction as the polarization axis of the polarizing film and absorbs other light. That is, light passing through the polarizing film is linearly polarized. As the polarizing film, various kinds of polarizing films may be used. For example, it may be a polarizing film including tri-acetate cellulose (TAC), poly vinyl alcohol, and the like. On the other hand, in order to prevent damage to the thin film encapsulation layer 40, the upper protective film 50 is attached to the thin film encapsulation layer 40, wherein the upper protective film 50 is a lower protective film rather than the aforementioned polarizing film In the same manner as in (10), a carrier film, an adhesive layer, and a release film may be included.

As such, since the upper protective film 50 protects the thin film encapsulation layer 40 during the manufacturing process, restrictions in the manufacturing process may be removed.

5 is a schematic diagram of a display device according to an exemplary embodiment of the present invention. The protective film 100 is removed from the release film 14 and attached to the display panel through the adhesive layer 12. In this case, the flexible display panel and the protective film 100 may be bent at a larger radius of curvature as compared to a case in which the pressure sensitive adhesive layer is integrally formed as shown in FIG. 5. Therefore, it is possible to provide a display device having an appropriate radius of curvature according to the needs of a user or a manufacturer.

Hereinafter, a method of manufacturing a protective film according to an embodiment of the present invention will be described in detail with reference to FIGS. 6 to 8. 6 is a schematic diagram of a manufacturing process of a protective film according to an embodiment of the present invention, Figures 7 to 8 are cross-sectional views of the spray unit according to an embodiment of the present invention.

First, the carrier film 11 is prepared. The carrier film 11 may include at least one material selected from polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene sulfide (PES), and polyethylene (PE). It can be included.

The thickness of the carrier film 11 may be 25 μm to 300 μm. When the thickness of the carrier film 11 is smaller than 25 μm, it is too thin to serve as a lower protective film protecting the lower portion of the organic light emitting display device, and when the thickness of the carrier film 11 is larger than 300 μm, the display device When the lower protective film is attached to the OLED display, the OLED display becomes less flexible.

The preparing of the carrier film may include processing the surface of the carrier film through a surface treatment unit 210 for treating the surface of the carrier film into a hydrophilic region and a hydrophobic region. . This is for the adhesive which forms the adhesive layer 12 to be selectively positioned on the carrier film 11. In the present specification, only the embodiments of dividing the hydrophilic region into the hydrophobic region through surface treatment are not limited thereto, and any embodiment may be divided into separate regions through physical properties to be distinguished.

As an example, when an adhesive is hydrophilic, the area | region in which an adhesive is located on a carrier film 11 is hydrophilized, and the area | region which is not located is hydrophobicly processed. On the contrary, when the pressure sensitive adhesive is hydrophobic, the area where the pressure sensitive adhesive is located on the carrier film 11 is subjected to hydrophobic treatment, and the area where the pressure sensitive adhesive is not located is hydrophilic.

As such, any part of the carrier film 11 may be hydrophilized and other parts may be hydrophobic, and a plasma-surface treatment unit 210 using a mask may be used as an example, as shown in FIG. 6. Can be used.

Next, an adhesive is applied to one surface of the carrier film 11 by using the spray unit 220. At this time, when the pressure-sensitive adhesive is hydrophilic, it is located only in the hydrophilic region of the carrier film 11, and when the pressure-sensitive adhesive is hydrophobic, it is positioned only in the hydrophobic region of the carrier film 11. Therefore, the pressure-sensitive adhesive is located partially (discontinuously) in one surface of the carrier film 11.

As an example of the present invention, FIG. 6 illustrates only a method of performing plasma treatment on one surface of the carrier film 11 to form the pressure-sensitive adhesive layer 12 in which the pressure-sensitive adhesive is partially located, but is not limited thereto. It may include a method of applying the pressure-sensitive adhesive in the desired form, without any treatment.

7 to 8, FIG. 7 is an injection unit 220 of an adhesive used when surface treatment of one surface of the carrier film 11 by plasma treatment or the like. The injection unit 220 as shown in FIG. 7 includes a nozzle 221 which is impossible to spray a partial or discontinuous pressure sensitive adhesive, thereby allowing the pressure sensitive adhesive to be partially positioned through the surface treatment of the carrier film 11.

On the other hand, the spray unit 220 shown in FIG. 8 includes a nozzle 222 capable of partially and discontinuously spraying the pressure-sensitive adhesive, which is discontinuous as shown in FIGS. 2 to 3 without any surface treatment. It is possible to apply an adhesive having a shape. That is, it is possible to form the pressure-sensitive adhesive layer 12 of the desired shape through the appropriate selection of the injection unit 220.

In summary, in order to form the embossed and discontinuously positioned pressure-sensitive adhesive layer 12, it is possible to use the surface treatment of the carrier film 11 or the adjustment of the pressure-sensitive adhesive coating method itself, and the like. Of course it is also possible.

Next, the applied pressure-sensitive adhesive layer is cured through the curing unit 230, the protective film further comprises a release film 14 through the attachment unit 240 to form a release film 14 on the cured pressure-sensitive adhesive layer Can be formed.

Next, a method of manufacturing the organic light emitting display device including the protective film 10 described above will be described.

First, an organic light emitting display panel 100 is formed on a support member (not shown). The support member (not shown) is for supporting the organic light emitting display panel 100 so as to be easily handled. The organic light emitting display panel 100 is attached to the substrate 20, the organic light emitting element 30 formed on the substrate, the thin film encapsulation layer 40 and the thin film encapsulation layer 40 covering the organic light emitting element 30. Top protective film 50.

The upper protective film 50 positioned on the thin film encapsulation layer 40 may be a functional film such as a polarizing film. However, the present invention is not limited thereto and may include the same carrier film, pressure-sensitive adhesive layer, and release film as the lower protective film 10 other than the polarizing film described above.

Next, the supporting member (not shown) is removed from the organic light emitting display panel 100. In this case, static electricity may be generated in the organic light emitting display panel 100 due to friction between the organic light emitting display panel 100 and the support member (not shown).

Next, the lower protective film 10 according to an embodiment of the present invention is prepared. The lower protective film 10 is attached to the carrier film 11, the pressure-sensitive adhesive layer 12 formed on the carrier film 11, the pressure-sensitive adhesive layer 12, and a release film for preventing the adhesive layer 12 from sticking ( 14).

The release film 14 is a protective paper for preventing contamination of the adhesive layer 12 and external contact. The release film 14 is removed before the lower protective film 10 is attached to the substrate 20 of the organic light emitting display panel 100. Layer 12 is easily attached below substrate 20.

When the release film 14 is removed by the pressure-sensitive adhesive layer 12, the release film 14 may be damaged by physical force, so that 0.1 μm of silicon is placed on the inner surface of the release film 14. It is possible to facilitate the stripping process of the release film 14 by coating using a gravure coating method to a thickness of 2 to 2㎛.

Next, the release film 14 is removed from the lower protective film 10, and the lower protective film 10 is attached under the organic light emitting display panel 100. The lower protective film 10 is attached under the substrate 20 of the organic light emitting display panel 100.

Next, the organic light emitting display panel 100 and the lower protective film 10 are cut by using a cutter and separated into a plurality of organic light emitting devices.

The completed organic light emitting device includes a pressure-sensitive adhesive layer formed discontinuously, and the pressure-sensitive adhesive layer can improve flexibility of the organic light emitting device, and have an appropriate curvature radius.

Although one embodiment of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

10: lower protective film 11: carrier film
12: pressure-sensitive adhesive layer 14: release film
20 substrate 30 organic light emitting device
40: thin film encapsulation layer 50: upper protective film
100: organic light emitting display panel

Claims (11)

Protective film, and
Includes a display panel,
The protective film
Carrier film, and
A pressure-sensitive adhesive layer on the carrier film and including a plurality of pressure-sensitive adhesives spaced apart from each other,
Each of the plurality of adhesives has a circular cross-sectional shape. In claim 1,
The protective film,
The display device further comprising a release film disposed on the pressure-sensitive adhesive layer. In claim 2,
The carrier film comprises a hydrophobic region and a hydrophilic region,
The plurality of pressure-sensitive adhesive is located in any one of the hydrophobic region and the hydrophilic region. In claim 3,
The plurality of pressure-sensitive adhesives are located in the hydrophilic region,
The carrier film between the plurality of pressure-sensitive adhesive is a blank space. In claim 4,
And a plurality of pressure-sensitive adhesives are embossed. In claim 1,
The carrier film includes at least one of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethylene sulfide (PES), and polyethylene (PE). In claim 1,
The adhesive layer has an adhesive force of 1 to 500 gf / inch. In claim 1,
The carrier film has a thickness of 25 micrometers to 300 micrometers. In claim 1,
The protective film is located on one surface of the display panel. In claim 9,
The display panel
An organic light emitting element, and
And a thin film encapsulation layer on the organic light emitting element. In claim 10,
The display device further includes an upper protective film on the thin film encapsulation layer,
The upper protective film
Carrier film, and
And a pressure sensitive adhesive layer on the carrier film and including a plurality of pressure sensitive adhesives spaced apart from each other.

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