KR20100011878A - Organic light emitting diode display and ray irradiation system and method for manufacturing thereof using the smae - Google Patents

Abstract

PURPOSE: An organic light emitting display device, a light irradiation system and a method for manufacturing the organic light emitting display device using the same are provided to protect a display panel assembly from the external impact by interposing an adhesive layer between the display panel assembly and the cover unit. CONSTITUTION: A cover unit(10) is arranged to face a display panel assembly(50) and includes a light shielding region and a light transmitting region. The shielding region corresponds to the edge of the display panel assembly. The light transmitting region corresponds to the center of the display panel assembly. An adhesion layer(20) is filled between the display panel assembly and the cover unit. An ultraviolet shielding unit is arranged on a side of the display panel assembly and blocks the inflow of the ultraviolet ray inside the display panel assembly.

Description

Organic light emitting display, light irradiation system, and manufacturing method of organic light emitting display using same {ORGANIC LIGHT EMITTING DIODE DISPLAY AND RAY IRRADIATION SYSTEM AND METHOD FOR MANUFACTURING THEREOF USING THE SMAE}

The present invention relates to an organic light emitting display device, a light irradiation system, and a method of manufacturing the organic light emitting display device using the same. More particularly, the organic light emitting display device having improved display characteristics and durability to improve product reliability, and manufacturing the same. A light irradiation system and a method of manufacturing an organic light emitting display device using the same.

The organic light emitting display includes a plurality of organic light emitting diodes having a hole injection electrode, an organic emission layer, and an electron injection electrode. In the organic light emitting layer, light is emitted by energy generated when an exciton generated by combining electrons and holes falls from an excited state to a ground state, and the organic light emitting diode display forms an image by using the energy.

Therefore, the organic light emitting diode display has a self-luminous property 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 device for portable electronic devices because it exhibits high quality characteristics such as low power consumption, high luminance, and high response speed.

In general, an organic light emitting diode display includes a display panel assembly having organic light emitting elements formed therein and a printed circuit board electrically connected to the display panel assembly through a flexible circuit board. In addition, the organic light emitting diode display generally includes a support member coupled with the display panel assembly to compensate for the mechanical strength and stability of the display panel assembly, and a cover member covering one surface of the display panel assembly displaying an image.

In the organic light emitting diode display, the cover member is generally disposed to be spaced apart from the display panel assembly. Light generated in the display panel assembly is emitted to the outside through the space and the cover member. Accordingly, there is a problem in that visibility of the image displayed by the organic light emitting diode display device is reduced due to a difference in refractive index between the cover member and the spaced space, a decrease in transmittance due to the spaced space, and reflection of light occurring on the surface of the cover member and the display panel assembly. .

In addition, the overall thickness of the organic light emitting diode display is increased due to the space between the cover member and the display panel assembly.

The present invention is to solve the above-mentioned problems of the background art, and to provide an organic light emitting display device having improved display characteristics and durability to improve product reliability.

Another object of the present invention is to provide a light irradiation system used for manufacturing the organic light emitting display device.

Further, a method of manufacturing the organic light emitting display device will be described.

An organic light emitting diode display according to an exemplary embodiment of the present invention includes a display panel assembly, a cover member disposed to face the display panel assembly, an adhesive layer filling a space between the display panel assembly and the cover member, and a side surface of the display panel assembly. And a UV blocking member disposed along the side to block ultraviolet rays from flowing into the display panel assembly.

The adhesive layer may be made by curing an adhesive material including an acrylic resin.

The UV blocking member may be made of a resin including a UV blocking material.

In the organic light emitting diode display, the cover member may include a light blocking area corresponding to an edge of the display panel assembly and a light transmitting area corresponding to a central portion of the display panel assembly.

The cover member may include a transparent substrate and a light blocking film formed at an edge of the transparent substrate to form the light blocking region.

The cover member may include a first transparent substrate, a second transparent substrate disposed to face the first transparent substrate, and the first transparent substrate and the second transparent substrate between the first transparent substrate and the second transparent substrate. The light blocking layer may be disposed along an edge of the light blocking layer to form the light blocking region.

The apparatus may further include a transparent adhesive layer disposed between the first transparent plate and the second transparent plate.

The cover member may be a touch panel.

The touch panel may include a transparent substrate, a first transparent conductive film and a second transparent conductive film disposed on both surfaces of the transparent substrate, at least one of the first transparent conductive film and the second transparent conductive film, and the transparent substrate. The metal pattern layer may be disposed between the transparent substrate to form the light blocking region.

In addition, the light irradiation system according to an embodiment of the present invention is a support unit for supporting the display panel assembly bonded to the cover member with the adhesive material therebetween and for irradiating ultraviolet rays in the lateral direction of the display panel assembly with respect to the adhesive material. And a light irradiation unit, wherein the support unit includes a panel support for supporting the display panel assembly, and a UV blocking unit surrounding a side surface of the display panel assembly.

In addition, the method of manufacturing an organic light emitting display device according to an exemplary embodiment of the present invention includes providing a cover member and a display panel assembly, providing an adhesive material on the cover member, and contacting the adhesive material with the display panel assembly. Bonding the cover member and the display panel assembly to irradiate ultraviolet rays to the adhesive material in a lateral direction of the display panel assembly to cure the adhesive material while the ultraviolet light passes through the side of the display panel assembly; Blocking the flow into the assembly.

The adhesive material may include an acrylic resin, and a space between the display panel assembly and the cover member may be filled with the adhesive material.

A portion of the adhesive material provided on the cover member may flow down to contact the display panel assembly, and then the cover member and the display panel assembly may be bonded to each other.

The ultraviolet blocking member may be disposed along the side surface of the display panel assembly to block the ultraviolet ray from flowing into the display panel assembly through the side surface.

And supporting the display panel assembly bonded to the cover member to a support unit, wherein the support unit includes a panel support for supporting the display panel assembly and a UV blocking unit surrounding a side surface of the display panel assembly. Can be.

In the method of manufacturing an organic light emitting display device, the cover member may include a light blocking area corresponding to an edge of the display panel assembly and a light transmitting area corresponding to a central portion of the display panel assembly.

The cover member may include a transparent substrate and a light blocking film formed at an edge of the transparent substrate to form the light blocking region.

The cover member may include a first transparent substrate, a second transparent substrate disposed to face the first transparent substrate, and the first transparent substrate and the second transparent substrate between the first transparent substrate and the second transparent substrate. The light blocking layer may be disposed along an edge of the light blocking layer to form the light blocking region.

The apparatus may further include a transparent adhesive layer disposed between the first transparent plate and the second transparent plate.

The cover member is a touch panel, and the touch panel includes a transparent substrate, a first transparent conductive film and a second transparent conductive film disposed on both surfaces of the transparent substrate, the first transparent conductive film, and the A metal pattern layer may be disposed between at least one of the second transparent conductive layers and the transparent substrate along the edge of the transparent substrate to form the light blocking region.

According to the present invention, the display characteristics and durability of the organic light emitting diode display may be improved, thereby increasing the reliability of the product.

In addition, the light irradiation system may be used to effectively form an adhesive layer for bonding the cover member and the display panel assembly to each other.

In addition, the organic light emitting diode display may be effectively manufactured.

Hereinafter, various 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 addition, in various embodiments, components having the same configuration will be representatively described in the first embodiment using the same reference numerals, and in other embodiments, only the configuration different from the first embodiment will be described. .

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

In addition, the size and thickness of each configuration 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. On the contrary, when a part is "just above" another part, there is no other part in the middle.

1 is a cross-sectional view of an organic light emitting diode display 100 according to a first exemplary embodiment of the present invention. 2 is a layout view illustrating a pixel circuit of the display panel assembly 50 illustrated in FIG. 1, and FIG. 3 is a partially enlarged cross-sectional view of the display panel assembly 50 illustrated in FIG. 1.

As illustrated in FIG. 1, the organic light emitting diode display 100 includes a display panel assembly 50, a cover member 10, an adhesive layer 20, and a UV blocking member 90. Although not illustrated, the organic light emitting diode display 100 may include a support member accommodating the display panel assembly 50, a printed circuit board supplying a driving signal to the display panel assembly 50, a display panel assembly 50, and the like. The apparatus may further include a flexible circuit board connecting the printed circuit board.

The display panel assembly 50 includes a first substrate 51 and a second substrate 52. Although not shown, an integrated circuit chip mounted on the first substrate 51 may be further included. The second substrate 52 is formed to have a smaller size than the first substrate 51, and the first substrate 51 and the second substrate 52 are sealants disposed along the edge of the second substrate 52. Are bonded to each other by In addition, an integrated circuit chip (not shown) may be mounted on one region of the first substrate 51 that does not overlap the second substrate 52.

An area where the first substrate 51 and the second substrate 52 overlap and substantially displays an image is called a display area, and an area other than the display area is called a non-display area.

The first substrate 51 includes pixels (shown in FIGS. 2 and 3) arranged in a matrix form in the display area. In addition, the first substrate 51 further includes a scan driver (not shown) and a data driver (not shown) disposed in the non-display area to drive the pixels. In addition, the first substrate 51 further includes pad electrodes (not shown) disposed in the non-display area. An integrated circuit chip (not shown) is mounted on a first substrate 51 in a chip on glass (COG) manner so as to be electrically connected to a pad electrode (not shown). In addition, the first substrate 51 further includes a wiring (not shown) for connecting an integrated circuit chip (not shown), a scan driver (not shown), and a data driver (not shown) to each other.

The second substrate 52 is bonded to the first substrate 51 to seal and protect the pixels, circuits, and wirings formed on the first substrate 51 from the outside. In addition, the display panel assembly 50 further includes a polarizer 58 attached to one surface of the second substrate 52 to suppress reflection of external light. However, the first embodiment of the present invention is not limited thereto, and the polarizing plate 58 may be omitted in some cases.

The cover member 10 is disposed to face the second substrate 52 or the polarizer 58, and covers the display panel assembly 50 as a whole. In detail, the cover member 10 covers one surface of the display panel assembly 50 in the direction in which the image is displayed. The cover member 10 may be made of a transparent material such as glass or plastic.

In addition, the cover member 10 includes a light blocking area BA corresponding to an edge of the display panel assembly 50, and a light transmitting area TA corresponding to a central portion of the display panel assembly 50. The light blocking area BA blocks unnecessary light and covers a portion of the display panel assembly 50 that does not display an image.

Specifically, the cover member 10 includes a transparent substrate and a light shielding film formed at an edge of the transparent substrate to form a light shielding area BA.

The adhesive layer 20 may be made of a material including an acrylic resin that is cured by ultraviolet rays or heat. In addition, the adhesive layer 20 is formed to have a relatively high elasticity.

The adhesive layer 20 fills the space between the display panel assembly 50 and the cover member 10. Thus, the cover member 10 and the display panel assembly 50 are stably coupled to each other.

In addition, the adhesive layer 20 not only prevents the display panel assembly 50 from being peeled from the cover member 10 but also has a relatively excellent elasticity and protects the display panel assembly 50 so that the organic light emitting display device 100 Its mechanical stability and reliability can be improved. That is, the display panel assembly 50 may be protected from an external shock.

In addition, the adhesive layer 20 is better that the refractive index is similar to the cover member 10. That is, since the adhesive layer 20 fills the space between the display panel assembly 50 and the cover member 10, the light is reflected by the difference in refractive index as the refractive index between the adhesive layer 20 and the cover member 10 is similar. This can be minimized. Since the acrylic resin used as the material of the adhesive layer 20 has a similar refractive index with the cover member 10 than the air, the adhesive layer 10 may provide a space between the second substrate 52 and the cover member 10. Filling can effectively reduce the reflection of light due to the difference in refractive index.

The UV blocking member 90 is disposed along the side of the display panel assembly 50. That is, the ultraviolet blocking member 90 blocks ultraviolet rays UV from flowing into the display panel assembly 50 through the side surface of the display panel assembly 50. In detail, the UV blocking member 90 blocks ultraviolet rays from entering the display panel assembly 50 during the formation of the adhesive layer 20 during the manufacturing process of the OLED display 100.

The UV blocking member 90 is made of a resin including a UV blocking material. As an example, a sunscreen film is mentioned.

By such a configuration, the organic light emitting diode display 100 may improve display characteristics and durability, thereby increasing the reliability of the product.

In addition, the inside of the display panel assembly 50 may be prevented from being damaged by being exposed to ultraviolet rays due to the ultraviolet blocking member 90.

In addition, the display panel assembly 50 and the cover member 10 may be stably coupled to each other by the adhesive layer 20, and external shock applied to the display panel assembly 50 may be buffered by the adhesive layer 20. .

In addition, since the cover member 10 is effectively fixed by the adhesive layer 20, the overall thickness of the organic light emitting diode display 100 may be minimized.

Hereinafter, the internal structure of the display panel assembly 50 will be described with reference to FIGS. 2 and 3.

The display panel assembly 50 displays an image with a plurality of pixels. As illustrated in FIGS. 2 and 3, the pixel includes an organic light emitting element L1 and a driving circuit unit DC. The pixel is generally formed on the first substrate 51. That is, the first substrate 51 includes a substrate member 511, a driving circuit part DC formed on the substrate member 511, and an organic light emitting element L1.

The organic light emitting element L1 includes an anode electrode 544, an organic emission layer 545, and a cathode electrode 546. The driving circuit unit includes at least two thin film transistors T1 and T2 and at least one storage capacitor C1. The thin film transistor basically includes a switching transistor T1 and a driving transistor T2.

The switching transistor T1 is connected to the scan line SL1 and the data line DL1, and converts the data voltage input from the data line DL1 into the driving transistor T2 according to the switching voltage input to the scan line SL1. send. The storage capacitor C1 is connected to the switching transistor T1 and the power supply line VDD and stores a voltage corresponding to a difference between the voltage received from the switching transistor T1 and the voltage supplied to the power supply line VDD.

The driving transistor T2 is connected to the power supply line VDD and the storage capacitor C1 to output an output current I _OELD proportional to the square of the difference between the voltage stored in the storage capacitor C1 and the threshold voltage. ) And the organic light emitting element L1 emits light by the output current I _OLED . The driving transistor T2 includes a source electrode 533, a drain electrode 532, and a gate electrode 531, and the anode electrode 544 of the organic light emitting element L1 is connected to the drain electrode 532 of the driving transistor T2. ) Can be connected. The configuration of the pixel is not limited to the above-described example and can be variously modified.

The second substrate 52 covers the first substrate 51 on which the organic light emitting element L1 and the driving circuit unit DC are formed.

The polarizing plate 58 is disposed on either side of both surfaces of the second substrate 52.

Hereinafter, a second embodiment of the present invention will be described with reference to FIG.

As illustrated in FIG. 4, the cover member 30 of the organic light emitting diode display 200 according to the second exemplary embodiment may include a first transparent substrate 31, a second transparent substrate 35, and a light shielding film 37. ), And the adhesive layer 32.

The first transparent substrate 31 faces the display panel assembly 50. The second transparent substrate 35 faces the first transparent substrate 31. The light blocking film 37 is disposed between the first transparent substrate 31 and the second transparent substrate 35, and is disposed along edges of the first transparent substrate 31 and the second transparent substrate 35 to block the light blocking area BA. ). That is, the cover member 30 is divided into a light blocking area BA in which the light blocking film 37 is disposed, and a light transmitting area TA in which the light blocking film 37 is not formed. The adhesive layer 32 is disposed between the first transparent substrate 31 and the second transparent substrate 35 to bond the first transparent substrate 31 and the second transparent substrate 35 to each other. The adhesive layer 32 is also formed of a transparent material such as a transparent resin.

In addition to the cover member 30, the organic light emitting diode display 200 includes the display panel assembly 50, the adhesive layer 20, and the ultraviolet blocking member 90. These configurations are as described above in the first embodiment.

Even with such a configuration, the organic light emitting diode display 200 may improve display characteristics and durability to increase product reliability.

In addition, the inside of the display panel assembly 50 may be prevented from being damaged by being exposed to ultraviolet rays due to the ultraviolet blocking member 90.

In addition, the display panel assembly 50 and the cover member 30 may be stably coupled to each other by the adhesive layer 20, and external shock applied to the display panel assembly 50 may be buffered by the adhesive layer 20. .

In addition, since the cover member 30 is effectively fixed by the adhesive layer 20, the overall thickness of the organic light emitting display device 100 may be minimized.

In addition, since the cover member 30 is formed in multiple layers, the display panel assembly may be more stably covered.

Hereinafter, a third embodiment of the present invention will be described with reference to FIG.

As illustrated in FIG. 5, in the organic light emitting diode display 300 according to the third exemplary embodiment, a touch panel is used as the cover member 40. Hereinafter, in the third embodiment of the present invention, the cover member 40 is called a touch panel.

The touch panel 40 includes a transparent substrate 42, a first transparent conductive film 41, a second transparent conductive film 43, and a metal pattern film 47. The first transparent conductive film 41 and the second transparent conductive film 43 are disposed on both surfaces of the transparent substrate 42, respectively. The metal pattern layer 47 is disposed between the at least one of the first transparent conductive layer 41 and the second transparent conductive layer 43 and the transparent substrate 42 along the edge of the transparent substrate 42 to form a light blocking region ( BA). That is, the cover member 40 is divided into a light blocking area BA in which the metal pattern film 47 is disposed, and a light transmitting area TA in which the metal pattern film 47 is not formed. In FIG. 5, the metal pattern film 47 is disposed between the second transparent conductive film 43 and the transparent substrate 42.

The touch panel 40 includes a capacitive type and a surface ultrasonic type.

In the capacitive touch panel 40, when a voltage is applied to the first transparent conductive film 41 and the second transparent conductive film 43 through the metal pattern film 47, the high frequency spreads on the surface of the touch panel 40. The touch point is recognized by analyzing the changed high frequency waveform when this contact occurs.

Meanwhile, in the surface ultrasonic touch panel 40, ultrasonic waves oscillated from the metal pattern layer 47 flow through the first transparent conductive layer 41 or the second transparent conductive layer 43 and are located on the opposite side of the metal pattern layer. 47 is reached. At this time, when an object that disturbs sound waves such as a finger touches and interferes with the path of sound waves, the point of time is calculated to recognize the touch point.

In addition to the touch panel 40, the organic light emitting diode display 300 includes a display panel assembly 50, an adhesive layer 20, and a UV blocking member 90. These configurations are as described above in the first embodiment.

Even with such a configuration, the organic light emitting diode display 300 may improve display characteristics and durability to increase product reliability.

In addition, the inside of the display panel assembly 50 may be prevented from being damaged by being exposed to ultraviolet rays due to the ultraviolet blocking member 90.

In addition, the display panel assembly 50 and the touch panel 40 may be stably coupled to each other by the adhesive layer 20, and external shock applied to the display panel assembly 50 may be buffered by the adhesive layer 20. .

In addition, since the touch panel 40 is effectively fixed by the adhesive layer 20, the overall thickness of the organic light emitting diode display 100 may be minimized.

In addition, the touch panel 40 may increase the effectiveness of the organic light emitting diode display 300.

Hereinafter, a light irradiation system used for manufacturing the organic light emitting diode display 100 according to the first exemplary embodiment of the present invention will be described with reference to FIG. 6.

As shown in FIG. 6, the light irradiation system includes a support unit 95 and a light irradiation unit 70.

The support unit 95 supports the display panel assembly 50 bonded to the cover member 10 with the adhesive material 25 (shown in FIGS. 7 and 8) interposed therebetween. Here, the adhesive material 25 refers to the adhesive layer 20 before curing. The UV blocking member 90 is attached to a side surface of the display panel assembly 50 supported by the support unit 95. The cover member 10, the display panel assembly 50, and the ultraviolet blocking member 90 have been described with reference to FIG. 1.

The light irradiation unit 70 irradiates ultraviolet (UV) light to the adhesive material 25 in the lateral direction of the display panel assembly 50. The light irradiation unit 70 includes an optical fiber and irradiates ultraviolet (UV) light to the adhesive material 25 in a moving manner. In this case, the ultraviolet blocking member 90 prevents the ultraviolet (UV) emitted from the light irradiation unit 70 from damaging the inside of the display panel assembly 50 to cure the adhesive material 25.

As such, the light irradiation system stably forms the adhesive layer 20. Since the cover member 10 includes the light blocking area BA, the adhesive material 25 positioned under the light blocking area BA of the cover member 10 when irradiated with UV light through the cover member 10. May not harden completely and may cause defects. However, since the light irradiation system according to the exemplary embodiment of the present invention irradiates ultraviolet rays (UV) toward the lateral direction of the display panel assembly 50, the adhesive layer is stably not affected by the light shielding area BA of the cover member 10. 20 can be formed.

In addition, the organic light emitting diode display 200 and 300 according to the second and third embodiments of the present invention may also be manufactured by the same method through the above-described light irradiation system.

Hereinafter, a method of manufacturing the OLED display 100 of FIG. 1 will be described with reference to FIGS. 7 and 8.

First, the display panel assembly 50 is prepared, and then the UV blocking member 90 is attached to the side surface of the display panel assembly 50.

Next, as shown in FIG. 7, after providing the cover member 10 including the light blocking area BA and the light transmitting area TA, and determining the required amount of the adhesive material 25, the adhesive material 25 ) Is applied on one surface of the cover member 10. The adhesive material 25 includes an acrylic resin.

Next, as shown in FIG. 8, the cover member 10 and the display panel assembly 50 are bonded to each other such that the adhesive material 25 abuts on the display panel assembly 50. In this case, the light blocking area BA corresponds to the edge of the display panel assembly 50, and the light transmitting area TA corresponds to the central portion of the display panel assembly 50.

As such, the space between the cover member 10 and the display panel assembly 50 which are bonded to each other is evenly filled with the adhesive material 25.

In addition, after the cover member 10 and the display panel assembly 50 are not directly bonded together, a part of the adhesive material 25 applied to the cover member 10 flows down and comes into contact with the display panel assembly 50. The cover member 10 and the display panel assembly 50 are bonded to each other. In this manner, bubbles may be suppressed from occurring at the interface between the adhesive material 25 and the display panel assembly 50 when the cover member 10 and the display panel assembly 50 are bonded to each other.

Next, as shown in FIG. 6, the adhesive material 25 is cured using the light irradiation system to form the adhesive layer 20. In this case, the ultraviolet blocking member 90 blocks ultraviolet rays from flowing into the display panel assembly 50 through the side surface of the display panel assembly 50. That is, the ultraviolet blocking member 90 prevents the ultraviolet (UV) emitted from the light irradiation unit 70 from damaging the inside of the display panel assembly 50 to cure the adhesive material 25.

In addition, the organic light emitting diode display 200 and 300 according to the second and third embodiments of the present invention may also be manufactured through the above-described manufacturing method.

Hereinafter, an organic light emitting diode display 200, a light irradiation system, and a method of manufacturing the organic light emitting diode display apparatus using the same will be described with reference to FIG. 9.

As illustrated in FIG. 9, the organic light emitting diode display 101 includes a display panel assembly 50, a cover member 10, and an adhesive layer 20. The organic light emitting diode display 101 does not have a separate UV blocking member attached to the side surface of the display panel assembly 50.

The light irradiation system includes a support unit 80 and a light irradiation unit 70.

The support unit 80 supports the display panel assembly 50 bonded to the cover member 10 with the adhesive material 25 therebetween. The support unit 80 includes a panel support 85 supporting the display panel assembly 50 and a UV blocking unit 81 surrounding the side surface of the display panel assembly 50. The UV blocking unit 81 of the support unit 80 prevents ultraviolet rays (UV) irradiated from the light irradiation unit 70 to damage the inside of the display panel assembly 50 to cure the adhesive material 25. . That is, the UV blocking member is not attached to the side of the display panel assembly 50, and ultraviolet rays (UV) are introduced into the display panel assembly 50 through the UV blocking unit 81 of the support unit 80. Block it.

The light irradiation unit 70 irradiates ultraviolet (UV) light to the adhesive material 25 in the lateral direction of the display panel assembly 50. The light irradiation unit 70 includes an optical fiber and irradiates ultraviolet rays to the adhesive material 25 in a moving manner. The adhesive material 25 is cured by ultraviolet (UV) to become the adhesive layer 20.

Even with such a configuration, the light irradiation system can stably form the adhesive layer 20.

In the method of manufacturing the organic light emitting diode display 101 according to the fourth exemplary embodiment of the present invention, the organic light emitting diode display 101 may not be a separate ultraviolet light blocking member, but the ultraviolet ray blocking portion 81 of the support unit 80 of the light irradiation system. Is the same as the manufacturing method according to the first embodiment except that ultraviolet (UV) is blocked through).

Hereinafter, the optical characteristics of the Examples and Comparative Examples according to the present invention will be described with reference to the following table. The space between the cover member 10 and the display panel assembly 50 is filled with an adhesive layer made of a polymer material such as an acrylic resin as a whole, and the comparative example is filled with air.

Comparative example Experimental Example Luminance [cd / m ² ] 180 206 Exterior contrast ratio @ 10,000 lux 1.74 2.45 Outer Color Reproducibility @ 10,000 5.3% 14.5% Cover member transmittance [%] 91.8% 91.8% Cover member and display panel assembly reflectance [%] 7.44% 4.35%

As shown in Table 1, it can be seen that the Example has excellent optical properties compared to the Comparative Example.

Although the present invention has been described through the preferred embodiments as described above, the present invention is not limited thereto and various modifications and variations are possible without departing from the spirit and scope of the claims set out below. Those in the technical field to which they belong will easily understand.

1 is a cross-sectional view of an organic light emitting diode display according to a first exemplary embodiment of the present invention.

FIG. 2 is a layout view illustrating a pixel circuit of the display panel assembly illustrated in FIG. 1.

3 is a partially enlarged cross-sectional view of the display panel assembly illustrated in FIG. 1.

4 is a cross-sectional view of an organic light emitting diode display according to a second exemplary embodiment of the present invention.

5 is a cross-sectional view of an organic light emitting diode display according to a third exemplary embodiment of the present invention.

6 is a cross-sectional view of a light irradiation system used to manufacture the organic light emitting diode display of FIG. 1.

7 and 8 are cross-sectional views sequentially illustrating a method of manufacturing the OLED display of FIG. 1.

9 is a cross-sectional view of an organic light emitting display device and a light irradiation system used for manufacturing the same according to a fourth embodiment of the present invention.

Claims (20)

Display panel assembly; A cover member disposed to face the display panel assembly; An adhesive layer filling the space between the display panel assembly and the cover member; And And a UV blocking member disposed along a side surface of the display panel assembly to block ultraviolet rays from entering the inside of the display panel assembly through the side surface. In claim 1, The adhesive layer is formed by curing an adhesive material including an acrylic resin. In claim 2, The UV blocking member is an organic light emitting display device made of a resin including a UV blocking material. The method according to any one of claims 1 to 3, The cover member includes a light blocking area corresponding to an edge of the display panel assembly, and a light transmitting area corresponding to a central portion of the display panel assembly. In claim 4, The cover member includes a transparent substrate and a light blocking film formed at an edge of the transparent substrate to form the light blocking region. In claim 4, The cover member may include a first transparent substrate, a second transparent substrate disposed to face the first transparent substrate, and the first transparent substrate and the second transparent substrate between the first transparent substrate and the second transparent substrate. And a light blocking layer disposed along an edge of the light blocking layer to form the light blocking region. In claim 6, The organic light emitting display device further comprises a transparent adhesive layer disposed between the first transparent plate and the second transparent plate. In claim 4, The cover member is a touch panel. In claim 8, The touch panel may include a transparent substrate, a first transparent conductive film and a second transparent conductive film disposed on both surfaces of the transparent substrate, at least one of the first transparent conductive film and the second transparent conductive film, and the transparent substrate. And a metal pattern layer disposed between edges of the transparent substrate to form the light blocking region. A support unit supporting the display panel assembly bonded to the cover member with the adhesive material therebetween; And A light irradiating unit irradiating ultraviolet rays to the adhesive material in a lateral direction of the display panel assembly Including; The support unit includes a panel support for supporting the display panel assembly, and a UV blocking unit surrounding a side surface of the display panel assembly. Providing a cover member and a display panel assembly; Providing an adhesive material on the cover member; Bonding the cover member to the display panel assembly such that the adhesive material contacts the display panel assembly; Irradiating ultraviolet light toward the side of the display panel assembly with respect to the adhesive material to cure the adhesive material, and blocking ultraviolet rays from entering the inside of the display panel assembly through the side of the display panel assembly. Organic light emitting display device manufacturing method comprising a. In claim 11, The adhesive material includes an acrylic resin, And a space between the display panel assembly and the cover member is filled with the adhesive material. In claim 12, And a portion of the adhesive material provided on the cover member is allowed to contact the display panel assembly, and then the cover member and the display panel assembly are bonded to each other. In claim 11, And a UV blocking member disposed along a side surface of the display panel assembly to block the ultraviolet ray from flowing into the display panel assembly through the side surface. The method of claim 14, Supporting the display panel assembly bonded to the cover member to a support unit, The support unit includes a panel supporter for supporting the display panel assembly and a UV blocking unit surrounding a side surface of the display panel assembly. The method according to any one of claims 11 to 15, The cover member includes a light blocking area corresponding to an edge of the display panel assembly, and a light transmitting area corresponding to a central portion of the display panel assembly. The method of claim 16, The cover member includes a transparent substrate and a light blocking film formed at an edge of the transparent substrate to form the light blocking region. The method of claim 16, The cover member may include a first transparent substrate, a second transparent substrate disposed to face the first transparent substrate, and the first transparent substrate and the second transparent substrate between the first transparent substrate and the second transparent substrate. And a light blocking layer disposed along an edge of the light blocking layer to form the light blocking region. The method of claim 18, And a transparent adhesive layer disposed between the first transparent plate and the second transparent plate. The method of claim 16, The cover member is a touch panel, The touch panel may include a transparent substrate, a first transparent conductive film and a second transparent conductive film disposed on both surfaces of the transparent substrate, at least one of the first transparent conductive film and the second transparent conductive film, and the transparent substrate. And a metal pattern layer disposed between edges of the transparent substrate to form the light blocking region.

Images