KR102642368B1 - Organic light emitting diode display - Google Patents

Abstract

Because there is an organic protective film flow control pattern according to an embodiment of the present invention, ?坪? An organic light emitting display device implementing a bezel is provided. In the active area and bezel area defined on the substrate, the flow of the organic protective film disposed in the active area can be minimized from spreading to the bezel part due to the organic protective film flow control pattern, thereby minimizing the flow of the organic protective film in the bezel area. In an organic light emitting display device having an organic protective film flow control pattern according to an embodiment of the present invention, the upper layer of the organic protective film is flat rather than curved due to the organic protective film flow control pattern, thereby improving the display quality of the organic light emitting display device. .

Description

Organic light emitting display device {ORGANIC LIGHT EMITTING DIODE DISPLAY}

The present invention relates to an organic light emitting display device, and more specifically, to an organic light emitting display device configured by bonding a barrier substrate to a substrate on which an organic light emitting device is disposed in an encapsulation method. The present invention relates to an adhesive layer disposed on the organic light emitting device or An organic light emitting display device including a flow control pattern configured to more efficiently control the flow of an organic protective layer made of organic material is provided.

Modern display devices capable of displaying various information and interacting with users viewing the information are required to have various sizes, shapes, and functions.

These display devices include Liquid Crystal Display Device (LCD), Plasma Display Panel (PDP), Electrophoretic Display Device (FPD), and Organic Light Emitting Diode Display Device. : OLED), etc.

Liquid crystal displays are driven using the optical anisotropy and polarization properties of liquid crystals. Because liquid crystals have a thin and long structure, the arrangement of molecules has directionality, and the direction of the molecular arrangement can be controlled by artificially applying an electric field to the liquid crystal. Therefore, if the molecular arrangement direction of the liquid crystal is arbitrarily adjusted, the molecular arrangement of the liquid crystal changes, and light is refracted in the direction of the liquid crystal molecule arrangement due to optical anisotropy, allowing light to pass through.

Using this property, the molecular arrangement direction of the liquid crystal corresponding to the plurality of pixels is changed to drive the pixels with transmitted light, thereby displaying image information on the display device. In this way, the liquid crystal display device requires a separate light source, such as a backlight, in addition to the liquid crystal layer.

However, an organic light emitting display (OLED) is a self-emitting display device, and unlike a liquid crystal display (LCD), it does not require a separate light source and can be manufactured in a lightweight and thin form. In addition, organic light emitting display devices are not only advantageous in terms of power consumption due to low voltage driving, but also have excellent color rendering, response speed, viewing angle, and contrast ratio (CR), and are being studied as next-generation displays.

Organic light emitting display devices use organic materials as the organic light emitting layer. Electrons and holes are injected into the organic light emitting layer composed of organic materials through two electrodes, and excitons are formed in the process of meeting and recombining in the organic light emitting layer. It emits light due to the energy of .

Electrons and holes are injected through the anode electrode, which is a pixel electrode, and the cathode electrode, which is a common electrode, and a driving element is placed to control the current injected into the pixel electrode. Additionally, in order to more smoothly inject electrons and holes, the organic light-emitting layer may include a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer, and may have a multilayer structure thereof.

An organic light emitting display device displays information on a screen by emitting a plurality of pixels including an organic light emitting element with an organic light emitting layer. Depending on the method of driving the pixels, an active matrix type organic light emitting display device It can be divided into Light Emitting Diode Display (AMOLED) or Passive Matrix type Organic Light Emitting Diode display (PMOLED).

An active matrix type organic light emitting display (AMOLED) uses a thin film transistor (or “TFT”) to control the current flowing through the organic light emitting diode to display images.

An active matrix organic light emitting display device may include a variety of thin film transistors, including a switching thin film transistor, a driving TFT connected to the switching TFT, and an organic light emitting diode (OLED) connected to the driving TFT. Includes.

The switching TFT is formed where the scan line and data line intersect. The switching TFT functions to select pixels. The switching TFT includes a gate electrode (Gate line) branching from the scan line, a semiconductor layer, a source electrode (Souce line), and a drain electrode (Drain Line). And the driving TFT serves to drive the organic light emitting device by supplying current to the organic light emitting diode (organic light emitting device, OLED) of the pixel selected by the switching TFT. The driving TFT includes a gate electrode connected to the drain electrode of the switching TFT, a semiconductor layer, a source electrode connected to a driving current wiring, and a drain electrode. The drain electrode of the driving TFT is connected to the anode electrode of the organic light-emitting diode (OLED).

In this way, the source electrode, drain electrode, and semiconductor layer constituting multiple TFTs for various purposes, and a large number of electrode wires connected thereto are arranged, and a flat layer exists on the electrode layer.

The planarization layer may be composed of one layer or multiple layers. As the pixel structure becomes more complex, multi-layer planarization layers may be used to efficiently arrange complex electrodes to implement high-resolution and high-performance organic light emitting display devices. .

An anode electrode, which is a pixel electrode, is disposed on the flat layer, and an organic light emitting layer and a common electrode are disposed. Particles may be generated on the common electrode during the process of placing the organic light-emitting device consisting of the pixel electrode, organic light-emitting layer, and common electrode, and an organic protective layer made of organic material is placed to prevent damage to the organic light-emitting device due to this. It can be.

An adhesive layer and a barrier film may be disposed on the organic protective layer, and the organic light emitting device may further include a multilayer encapsulation film.

The above-described organic protective layer can be disposed on the organic light-emitting device using a photocurable material that can be cured using light such as UV. The organic protective layer can be placed on the intended area while keeping the top of the organic protective layer flat. Various technologies are being used to deploy.

An organic protective layer is placed on the organic light emitting device to seal the organic light emitting device and minimize damage from particles, etc. Additionally, in order to control the flowability of the organic protective layer, a plurality of dams are placed in the non-display area of the organic light emitting display device to control the flowability of the organic protective layer during the process of disposing the organic protective layer. However, there may be limits to flow control due to the dam structure in the non-display area, and there were constraints that required consideration of process errors, etc.

These constraints were a limitation in implementing an organic light emitting display device with a slim bezel area by minimizing the non-display area of the organic light emitting display device, and when the top surface of the organic protective layer was arranged to be curved, the organic light emitting display display There was a problem in that the display quality was lowered because the degree of transparency of the organic protective layer in the border area and the center of the device could be different.

Accordingly, the inventors of the present invention have invented a new structure for an organic light emitting display device that can minimize the width of the non-display area by more efficiently controlling the flow of the organic protective film included in the organic light emitting display device. In addition, a new structure for an organic light emitting display device was invented that can improve display quality by controlling the flow of the organic protective film and minimizing the curvature of the top surface of the organic protective film.

The problem to be solved according to an embodiment of the present invention is an organic light emitting display device that can control the flow of the organic protective film by arranging the dam structure and the organic protective film flow control pattern at the outermost part of the active area to control the flow of the organic protective film. is to provide.

The problem to be solved according to an embodiment of the present invention is to provide an organic light emitting display device having a dam structure and an organic protective film flow control pattern to minimize the curvature of the top surface of the organic protective film.

The problems to be solved according to an embodiment of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

An organic light emitting display device having an organic protective film flow control pattern configured to control the flow of the organic protective film according to an embodiment of the present invention is provided. The organic protective film is configured to protect the organic light-emitting device, and in the process of placing the organic protective film, the flowability of the uncured organic protective film is controlled to minimize the flow of the organic protective film to the bezel part. The organic protective film is placed on the organic protective film flow control pattern. This is placed. The organic protective film flow control pattern, which controls the flow of the organic protective film, serves as a buffer space for the organic protective film and can minimize the flow to the bezel part, thereby minimizing the spread of the organic protective film to the bezel part.

An organic light emitting display device having an organic protective film flow control pattern according to an embodiment of the present invention is provided. An active area and a bezel area are defined on the substrate, and at least one driving element is disposed on the substrate. A planar layer is disposed on the driving element, and an organic light-emitting device is disposed in an active area on the planar layer. At least one dam structure in the active area on the flat layer is disposed, and an organic protective film flow control pattern is disposed on the flat layer to control the flowability of the organic protective film.

By providing an organic protective film flow control pattern according to an embodiment of the present invention, there is an effect of minimizing the overflow of the organic protective film into the bezel part, thereby stably providing an organic light emitting display device with a thin bezel part.

In addition, by providing an organic protective film flow control pattern according to another embodiment of the present invention, the curvature of the top surface of the organic protective film can be minimized, thereby improving the display quality of the organic light emitting display device.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Since the content of the invention described above in the problem to be solved, the means for solving the problem, and the effect do not specify the essential features of the claim, the scope of the claim is not limited by the matters described in the content of the invention.

1 is a schematic plan view illustrating an organic light emitting display device with an organic protective film flow control pattern according to an embodiment of the present invention.
Figures 2a to 2c are schematic cross-sectional views for explaining various configurations of an organic protective film flow control pattern and a dam structure according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Like reference numerals refer to like elements throughout the specification. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

Although first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present invention.

Each feature of the various embodiments of the present invention can be combined or combined with each other, partially or entirely, and various technological interconnections and operations are possible, and each embodiment can be implemented independently of each other or together in a related relationship. It may be possible.

Hereinafter, various configurations of an organic light emitting display device having a thin bezel by efficiently controlling the flow of an organic protective film according to an embodiment of the present invention will be described.

Hereinafter, various embodiments of the present invention will be described in detail with reference to the attached drawings.

1 is a schematic plan view illustrating an organic light emitting display device with an organic protective film flow control pattern according to an embodiment of the present invention.

Referring to FIG. 1, the organic light emitting display device 100 includes a substrate 110 with an active area 130 and a bezel area 140 defined, a barrier film 120 that protects the organic light emitting device (not shown), and a drive IC. (150), a wiring electrode 160, an organic protective film flow control pattern 170, and a dam structure 180.

The substrate 110 has an active area 130 and a bezel area 140 defined and are omitted, but a plurality of organic light emitting devices (not shown) are disposed in the active area 130 to form a plurality of pixels.

In addition, the substrate 110 includes a plurality of thin film transistors (not shown) to supply signals and currents for driving a plurality of pixels to the pixels. A switching thin film transistor and a driving thin film transistor connected to the switching thin film transistor are disposed and driven. An organic light emitting device connected to a thin film transistor is disposed.

These thin film transistors (switching thin film transistor and driving thin film transistor) are arranged to be connected to the gate line and data line arranged on the substrate 110. The switching thin film transistor functions to select a pixel, and the gate line and data line are connected to the thin film transistor. It is placed where the lines intersect. A switching thin film transistor includes a gate electrode, a semiconductor layer, a source electrode, and a drain electrode.

The driving thin film transistor serves to drive the anode electrode of the pixel selected by the switching thin film transistor. The driving thin film transistor includes a drain electrode of the switching thin film transistor, a connector gate electrode, a semiconductor layer, a source electrode connected to a driving current wiring, and a drain electrode. The drain electrode of the driving thin film transition is connected to the anode electrode, which is the pixel electrode of the organic light emitting device.

Organic light-emitting devices are vulnerable to oxygen and moisture, and darkening defects may occur due to penetration of oxygen and moisture, so they need to be covered with a multi-layer protective film or film.

The barrier film 120 is bonded to the substrate 110 to cover the organic light emitting device, and the barrier film 120 and the substrate 110 can be bonded to each other using an adhesive layer.

An organic protective film (not shown) is disposed on the substrate 110 to protect the organic light-emitting layer (not shown) included in the organic light-emitting device (not shown). The flow of the organic protective film (not shown) is controlled to form an active area 130. ), it is necessary to minimize the spread from the bezel area 140 to the bezel area 140, and for this purpose, at least one dam structure 180 and an organic protective film flow control pattern 170 may be disposed on the substrate 110.

The organic protective film flow control pattern 170 may include a buffer space for controlling the flow of the organic protective film, and the dam structure can be subjected to hydrophobic treatment to further control the flowability of the organic protective film. This can be done by controlling the surface energy. It is possible to control the surface energy of the dam structure 180 by coating or ionizing it with a material such as C or H that can increase the surface energy. As a result, the flow of the organic protective film can be further controlled by treating the dam structure to make it hydrophobic. It becomes possible.

FIGS. 2A to 2C are schematic cross-sectional views taken along line A-A' of FIG. 1, and are cross-sectional views for explaining various configurations of an organic protective film flow control pattern and a dam structure according to an embodiment of the present invention.

Referring to FIG. 2A, when the planarization film 213 and the organic protective film 218 are disposed on the substrate 210, the organic protective film flow control pattern 270 controls the flow of the organic protective film on the planarization film 213. ) is placed to control the spread of the organic protective film 218 into the bezel area 240.

The substrate 210 may be a polyimide-based flexible substrate. In this case, a buffer layer 211 is disposed on the substrate 210 to minimize the infiltration of oxygen and moisture from the bottom of the substrate 210. It can be. A gate electrode 262 for turning the thin film transistor on and off is disposed on the buffer layer 211. The gate electrode 262 is a metal wiring containing aluminum (AL) or moly (Mo) and may be a multi-layer metal wiring.

An ILD layer 212 and source/drain electrodes 261 are disposed on the gate electrode 262. The ILD layer may be disposed to prevent conduction between the gate electrode 262 and the source/drain electrodes 261 and to prevent contamination or damage by the lower layer of the gate electrode 62. It has a two-stage structure containing SiNx and SiO ₂ . It may be an inorganic membrane layer of. This is advantageous for moisture permeation and process time when using a SiO ₂ single layer, but parasitic caps may be generated and may affect the thin film transistor. SiNx is advantageous for parasitic caps, but disadvantageous for moisture permeability and film formation, so it is an inorganic layer with a two-stage structure and is an ILD layer. (212) can be placed.

A passivation layer 219 is disposed on the source/drain electrodes 261. The passivation layer 219 can basically be placed to protect the thin film transistor completed on the source/drain electrode 261. It prevents conduction between electrode layers that may be placed on the top and prevents contamination or burns of the upper layer by the lower layer. It may be an inorganic membrane layer for. Alternatively, the thin film transistor including the source/drain electrodes 261 may use a two-layer structure of organic and inorganic films because it contains many metal materials and has high electrical reactivity.

A planarization layer 213 is disposed on the passivation layer 219. The flattening layer is disposed to alleviate (flatten) the steps caused by the various layer patterns disposed at the bottom, and may be disposed including a polymer-based material containing at least one of acrylic resin, epoxy resin, and polyimide. .

The flattening layer 213 may be arranged as a single layer, but considering the arrangement of the wiring electrodes, it may be arranged as a plurality of two or more layers.

When the planar layer 213 is arranged in two layers, a metal electrode can be placed between the two planar layers 213, and the planar layer 213 is a dielectric material and is used as a dielectric to form a capacitor. can be configured. Moreover, when using a plurality of flat layers 213, there is an advantage in that the capacitance can be configured independently.

When arranged in two layers, a buffer layer 211 and a passivation layer 219 may be further included between the plurality of flattening layers 213 as shown in FIG. 2A. The buffer layer 211 and the passivation layer 219 between the plurality of planarization layers 213 are arranged to include a plurality of holes as shown in FIG. 2A to discharge outgas that may be generated in the planarization layer 213. It can be.

The outgas generated from the flat layer 213 may act on the active layer of the thin film transistor in the long term to change the driving voltage of the thin film transistor, and when it penetrates into the organic light emitting layer 215, it may cause defects such as dark lighting. there is.

An anode electrode 214, which is a pixel electrode, is disposed on the flat film 213, followed by an organic light emitting layer 215 and a cathode electrode 216, which is a common electrode.

When the organic light emitting display device 200 is a top emission type, the anode electrode 214 is a reflective electrode that reflects light and may be disposed using an opaque metal material. Additionally, the cathode electrode 216 of the top emission organic light emitting display device 200 may be made of a transparent conductive material such as ITO or IZO.

A bank layer 217 that can distinguish a plurality of pixels is disposed on the flat layer 213. The bank layer 217 disposed between pixels is colored black to minimize light blurring and prevent color mixing at various viewing angles. It may be a prominent bank layer 217.

The planarization layer 213 is disposed in the active area 230 of the organic light emitting display device 200 to enable the electrodes and organic light emitting devices for various purposes described above to be disposed.

The bezel area 240 can place driving signals that drive a plurality of pixels and wiring electrodes that supply current. The passivation layer 219 and buffer layer 211 described above are used to minimize the area of the bezel area 240. And by using the ILD layer 212 to arrange a plurality of source/drain electrodes 261 in multiple layers, the size of the bezel area 240 can be minimized.

A protective layer made of a repeated stack structure of organic and inorganic materials may be disposed on the cathode electrode 216 to protect the organic light-emitting layer 215 from oxygen and moisture.

Figure 2a shows a protective layer composed of a passivation layer 219 and an organic protective layer 218, but is not limited thereto.

A dam structure 280 may be placed in the bezel area 240. The dam structures 280 may be arranged in plural numbers and may be arranged to surround the active area 230 or may be placed within the active area 230 .

The dam structure 280 may be arranged in multiple layers using at least one material. For example, the dam structure 280 may be arranged using a material used to arrange the bank layer 217 and the spacer.

The dam structure 280 may be arranged to surround the active area 230 to control the flow of the organic protective film 218.

The organic protective film 218 is applied in a liquid-like state with high density. When the material of the dam structure 280 has hydrophobicity, the organic protective film 218 rises upward at the portion in contact with the dam structure 280. There may be cases. That is, the application surface of the organic protective film 218 is not flat, and the edge portion adjacent to the dam structure 280 may have a higher height than the central portion.

In this case, when the barrier film 220 is bonded using the adhesive layer 612, it may overflow into the bezel area 240, and in this case, oxygen and moisture may infiltrate through the side of the organic protective film 218.

To prevent this, the bezel area 240 has no choice but to have a certain level of margin.

In this way, the organic protective film flow control pattern 270 is disposed on the flattening layer 213 to further control the flow of the organic protective film 218. Since the flattening layer 213 can be arranged in at least one or more layers, if the uppermost part of the flattening layer 213 is opened and the organic protective film flow control pattern 270 is placed, the deviation in the amount of application of the organic protective film 218 can be reduced. Since the considered buffer space can be secured, the design margin for the bezel area 240 can be minimized, which results in ?坪? It is possible to provide an organic light emitting display device 200 that has a bezel and has high lifespan reliability. The flow control pattern 270 may be a hole pattern in the flat layer 213. Additionally, the flow control pattern 270 is arranged along the periphery of the active area.

If the dam structure 280 is placed on the outside of the organic protective film flow control pattern 270, the organic protective film 218 can be placed to prevent further flow into the bezel area 240, and the surface energy of the dam structure 280 can be reduced. By adjusting the contact angle formed between the organic protective film flow control pattern 270 and the side of the dam structure 280 and the organic protective film 218 to have hydrophilic or hydrophobicity by using a method such as ion treatment, the organic protective film 218 is finally formed. It can be placed flat and not curved.

However, the inner surface of the above-described organic protective film flow control pattern 270 may be covered with a pixel electrode. The cathode electrode 216 is a common electrode and serves as a cathode electrode, and is electrically connected using the anode electrode 214 to be connected to the base wiring disposed in the bezel area 240. At this time, the inside of the flow control pattern 270 can be covered by the anode electrode 214.

Next, referring to FIGS. 2B and 2C, various configurations for controlling the flowability of the organic protective film 218 by the organic protective film flow control pattern 270 and the dam structure 280 will be described, but overlapping or substantially the same configuration The explanation will be omitted.

Referring to FIG. 2B, the organic protective film flow control pattern 270 is disposed at the outermost part of the active area 230, and the dam structure 280 is located on the inner surface of the active area 230 of the organic protective film flow control pattern 270. It is placed adjacent to .

The flow of the organic protective film 218 can be controlled by the dam structure 280 and the organic protective film flow control pattern 270, which is primarily the organic protective film flow control pattern 270 and the inside of the active area 230. The flowability of the organic protective film 218 is removed by the adjacent dam structure 280, and most of the organic protective film 218 disposed beyond the dam structure 280 is stored in the buffer space of the organic protective film flow control pattern 270. By doing this, the amount spreading to the bezel area 240 can be minimized. In addition, the dam structure 280 disposed in the bezel area 240 can secondarily block the spread of the overflowed organic protective film 218 in the direction of the bezel area 240, thereby further minimizing flow.

Referring to FIG. 2C, dam structures 280 can be placed on both sides of the organic protective film flow control pattern 270, and an organic protective film that can be accommodated in the organic protective film flow control pattern 270 by the dam structure 280. The amount of (218) may increase. Additionally, the curvature of the upper surface of the organic protective film 218 can be minimized by the plurality of dam structures 280.

Although embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of protection of the present invention should be interpreted in accordance with the claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of the present invention.

100, 200: Organic light emitting display device
110, 210: substrate
120, 220: Barrier film
130, 230: Active area
140, 240: Bezel area
150: Driver IC
160: wiring electrode
170, 270: Organic protective film flow control pattern
180, 280: Dam structure

Claims (14)

In an organic light emitting display device having an organic protective film to protect the organic light emitting element,
The organic protective film is composed of a curable organic material, and in the process of disposing the organic protective film, the flow of the organic protective film in an uncured state is controlled to minimize the width of the bezel, and the flow of the organic protective film is controlled on the flat layer below the organic protective film. Have a pattern,
The organic protective film flow control pattern is implemented to serve as a buffer space to minimize the flow of the uncured organic protective film to the bezel portion,
An organic light emitting display device, wherein the inside of the organic protective film flow control pattern is covered by a pixel electrode. According to claim 1,
The flow control pattern is a hole pattern in the planar layer. According to clause 2,
The flow control pattern is disposed along the periphery of the active area. According to clause 2,
An organic light emitting display device further comprising at least one dam structure on one side of the flow control pattern. According to clause 4,
The dam structure is a multi-layer organic light emitting display device composed of banks and spacers on the planarization layer. delete A board with an active area and a bezel area;
at least one driving element on the substrate;
a flat layer on the driving element;
an organic light emitting device on the planarization layer and in the active area;
at least one dam structure on the planarization layer and in the active area; and
It includes an organic protective film flow control pattern on the flat layer,
An organic light emitting display device, wherein the inside of the organic protective film flow control pattern is covered by a pixel electrode. According to clause 7,
The organic light emitting display device wherein the organic protective film flow control pattern is adjacent to the dam structure. According to clause 8,
The dam structure is adjacent to the inside of the active area of the organic protective film flow control pattern. According to clause 8,
The dam structure is adjacent to the bezel area of the organic protective film flow control pattern. According to any one of claims 1 to 5 or 7,
The organic light emitting display device wherein the planarization layer has a multi-layer structure. According to any one of claims 1 to 5 or 7,
The planar layer is an organic light emitting display device comprising a polymer-based material including at least one of acrylic resin, epoxy resin, and polyimide. According to any one of claims 1 to 5 or 7,
An organic light emitting display device further comprising an adhesive layer and a barrier film on the organic protective layer. According to clause 7,
An organic light emitting display device having at least one dam structure in the bezel area.

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