[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

KR20100020666A - Organic light emitting display - Google Patents

Organic light emitting display Download PDF

Info

Publication number
KR20100020666A
KR20100020666A KR1020080079354A KR20080079354A KR20100020666A KR 20100020666 A KR20100020666 A KR 20100020666A KR 1020080079354 A KR1020080079354 A KR 1020080079354A KR 20080079354 A KR20080079354 A KR 20080079354A KR 20100020666 A KR20100020666 A KR 20100020666A
Authority
KR
South Korea
Prior art keywords
light emitting
organic light
film
display device
organic
Prior art date
Application number
KR1020080079354A
Other languages
Korean (ko)
Other versions
KR101493092B1 (en
Inventor
유충근
윤수영
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR20080079354A priority Critical patent/KR101493092B1/en
Publication of KR20100020666A publication Critical patent/KR20100020666A/en
Application granted granted Critical
Publication of KR101493092B1 publication Critical patent/KR101493092B1/en

Links

Images

Classifications

    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/02Details
    • H01L31/0236Special surface textures
    • H01L31/02366Special surface textures of the substrate or of a layer on the substrate, e.g. textured ITO/glass substrate or superstrate, textured polymer layer on glass substrate
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K77/00Constructional details of devices covered by this subclass and not covered by groups H10K10/80, H10K30/80, H10K50/80 or H10K59/80
    • H10K77/10Substrates, e.g. flexible substrates
    • H10K77/111Flexible substrates
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10NELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00Piezoelectric or electrostrictive devices
    • H10N30/01Manufacture or treatment
    • H10N30/07Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base
    • H10N30/072Forming of piezoelectric or electrostrictive parts or bodies on an electrical element or another base by laminating or bonding of piezoelectric or electrostrictive bodies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/549Organic PV cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

PURPOSE: An organic light-emitting device is provided to prevent penetration of moisture and oxygen to the organic light-emitting device. CONSTITUTION: A lower plate(100) comprises the organic light-emitting device(110). The organic light-emitting device is composed of first electrode, the organic film including light-emitting layer, and the second electrode. The passivation part(120) is used as the humidity transmission preventing film of the organic light-emitting device. The passivation part comprises a first protection film(120a), a bonding layer(120b), a second protection film(120c), and a thin-film substrate(120d). The first protection film corresponding to the inorganic film covers the top and side of the organic light-emitting device.

Description

유기전계발광표시소자{Organic light emitting Display}Organic light emitting display device

본 발명은 유기 전계 발광 표시 소자에 관한 것으로, 더욱 상세하게는 플렉서블 기판을 사용하는 유기 전계 발광 표시 소자에서 기판 보호용 박막 기판이 구비된 유기 전계 발광 표시 소자에 관한 것이다. The present invention relates to an organic light emitting display device, and more particularly, to an organic light emitting display device having a thin film substrate for protecting a substrate in an organic light emitting display device using a flexible substrate.

현재 평판 표시 소자(Flat Panel Display) 중에서 유기 전계 발광 표시 소자(OLED; Organic light emitting Display)는 다른 평판 표시 소자 보다 사용 온도 범위가 넓고, 충격이나 진동에 강하며, 광 시야각이 넓고, 응답속도가 빨라 깨끗한 동화상을 제공할 수 있다는 등의 장점을 가지고 있어, 향후 차세대 평판 표시 장치로 주목받고 있다. Among flat panel displays, organic light emitting displays (OLEDs) have a wider operating temperature range than other flat panel displays, are more resistant to shock and vibration, have a wider viewing angle, and have a higher response speed. As it has the advantage of providing fast moving images, it is attracting attention as a next generation flat panel display.

한편, 차세대 평판 표시 장치로서 가볍고, 휴대가 쉬운 플렉서블 표시장치의 개발에 박차를 가하고 있다. 상기 플렉서블 표시장치는 기판으로서 플라스틱 등과 같은 플렉서블 재질의 기판을 사용하고 있다. 그러나, 상기 플라스틱은 투습도가 높기 때문에 그 상부에 별도의 보호막을 더욱 구비하여야 한다. On the other hand, as a next-generation flat panel display device, the development of a lightweight and portable flexible display device is spurred. The flexible display device uses a substrate made of a flexible material such as plastic as a substrate. However, since the plastic has a high moisture permeability, a separate protective film must be further provided on the plastic.

도 1a 및 도 1b는 종래 기술에 따른 유기전계발광표시소자의 단면도이다.1A and 1B are cross-sectional views of an organic light emitting display device according to the prior art.

도 1a 및 도 1b를 참조하면, 하부기판(10)과, 상기 하부기판(10)상에 형성된 유기발광소자(12)과, 상기 하부 기판(10) 상부의 유기발광소자(12)를 보호하기 위한 보호막(도 1a의 14, 도 1b의 16)으로 이루어진 구조를 갖는다. 1A and 1B, to protect the lower substrate 10, the organic light emitting element 12 formed on the lower substrate 10, and the organic light emitting element 12 on the lower substrate 10. And a protective film (14 in FIG. 1A and 16 in FIG. 1B).

도 1a의 보호막(14)은 유기막(14a) 및 무기막(14b)이 번갈아서 여러층 증착하여 형성되고, 도 1b의 보호막(16)은 중심에 유기막을 두고 유기막의 양면 각각에 무기막을 다층으로 형성된 막이 사용된다. The protective film 14 of FIG. 1A is formed by alternately depositing multiple layers of the organic film 14a and the inorganic film 14b, and the protective film 16 of FIG. 1B has an organic film at the center and an inorganic film on each of both sides of the organic film in multiple layers. The film formed is used.

그러나, 상기 보호막(도 1a의 14, 도 1b의 16)을 형성하는 유기막 및 무기막에는 핀홀(pin hole) 및 스트레스가 발생하여 도 2a 및 도 2b에 도시된 바와 같이, 수분이 유기발광소자까지 침투하게 되어 투습방지특성이 저하되는 문제점이 있다. However, pinholes and stress are generated in the organic layer and the inorganic layer forming the passivation layer (14 of FIG. 1A and 16 of FIG. 1B), and as shown in FIGS. 2A and 2B, moisture is emitted from the organic light emitting diode. To penetrate until there is a problem that the moisture permeation resistance is reduced.

또한, 상기 보호막을 형성하기 위해서는 유기막 및 무기막의 증착공정을 여러 번 수행하여야 하므로, 공정이 매우 복잡하고 비용이 증가하는 등의 문제점이 있다. In addition, since the deposition process of the organic film and the inorganic film has to be performed several times in order to form the protective film, the process is very complicated and the cost increases.

본 발명의 목적은 플렉서블 기판을 사용하는 유기전계발광표시소자에 구비되는 투습방지막의 투습방지 특성저하를 방지하는 유기전계발광표시소자를 제공함에 있다. SUMMARY OF THE INVENTION An object of the present invention is to provide an organic light emitting display device which prevents deterioration of the moisture permeation preventing property of a moisture barrier film provided in an organic light emitting display device using a flexible substrate.

본 발명의 또 다른 목적은 플렉서블 기판을 사용하는 유기전계발광표시소자에 구비되는 투습방지막의 제조비용 감소 및 공정 단순화를 구현하는 유기전계발광표시소자를 제공함에 있다. It is still another object of the present invention to provide an organic light emitting display device which realizes a reduction in manufacturing cost and process simplification of a moisture barrier film provided in an organic light emitting display device using a flexible substrate.

본 발명에 따른 유기전계발광소자는 일면에 제1 전극, 적어도 발광층을 포함하는 유기막 및 제2 전극으로 이루어지는 유기 전계 발광 소자를 구비하는 하부기판과, 상기 유기전계발광소자의 투습방지막인 패시베이션부를 구비하고, 상기 패시베이션부는 무기막인 제1 보호막, 접착층, 유기막인 제2 보호막 및 박유리인 박막 기판이 적층 구비된다. An organic electroluminescent device according to the present invention includes a lower substrate having an organic electroluminescent device comprising a first electrode, an organic film including at least a light emitting layer, and a second electrode on one surface thereof, and a passivation part that is a moisture barrier film of the organic light emitting device. The passivation part includes a first protective film as an inorganic film, an adhesive layer, a second protective film as an organic film, and a thin film substrate as a thin glass.

상기 무기막인 제1 보호막은 Al2O3, SiNx, SiO2, SiON로 이루어지는 군에서 선택되는 한 가지를 이용하여 형성되고, 상기 유기발광소자 상부 및 측부를 덮도록 형성되며, 0.1㎛~ 10㎛의 두께로 형성된다. The first protective film, which is the inorganic film, is formed using one selected from the group consisting of Al 2 O 3 , SiN x , SiO 2 , and SiON, and is formed to cover the upper and side portions of the organic light emitting device, and has a thickness of 0.1 μm to It is formed to a thickness of 10 μm.

상기 유기막인 제2 보호막은 PET(poly(ethylene terephthalate)), PEN(poly(ethylene naphthalate)), PC(poly(carbonate)),PES(poly(ethersulfone)), PAR(polyarylate), PSF(polysulfone) 및 COC(ciclic-olefin copolymer)로 이루어지 는 군에서 선택되는 한 가지를 이용하여 형성되고, 50~ 100㎛ 두께로 형성된다. The second passivation layer, which is an organic layer, may include PET (poly (ethylene terephthalate)), PEN (poly (ethylene naphthalate)), PC (poly (carbonate)), PES (poly (ethersulfone)), PAR (polyarylate), and PSF (polysulfone). ) And COC (ciclic-olefin copolymer) is formed using one selected from the group consisting of, it is formed to a thickness of 50 ~ 100㎛.

상기 박유리인 박막기판은 50~ 100㎛ 두께로 형성된다. The thin glass substrate is formed to a thickness of 50 ~ 100㎛.

상기 제2 보호막 및 박막 기판의 두께 합은 100~ 200㎛ 두께로 형성된다. The sum of the thicknesses of the second passivation layer and the thin film substrate is formed to a thickness of 100 to 200 μm.

상기 박막 기판은 상기 제2 보호막이 형성된 상기 하부 기판에 라미네이팅(laminating)시켜 부착하거나 또는 두 개의 롤이 구비된 롤 투 롤(roll to roll)장치를 통해 부착한다. The thin film substrate may be attached by laminating to the lower substrate on which the second passivation layer is formed, or through a roll to roll apparatus having two rolls.

상기 하부기판은 플렉서블 재질이다. The lower substrate is made of a flexible material.

본 발명에 따른 유기전계발광소자는 외부로부터 수분 및 산소(H2O 및 O2)가 침투하면, 박막 기판의 SiO2의 조성물 및 제1 보호막의 Al2O3, SiNx, SiO2, SiON들 중 어느 하나의 조성물과 각각 결합하게 되어, 유기발광소자까지 침투하는 것을 방지하게 되는 효과가 있다. In the organic electroluminescent device according to the present invention, when moisture and oxygen (H 2 O and O 2 ) penetrate from the outside, the composition of SiO 2 of the thin film substrate and Al 2 O 3 , SiN x , SiO 2 , SiON of the first protective layer Combining with any one of the compositions, respectively, there is an effect to prevent the penetration to the organic light emitting device.

본 발명에 따른 유기전계발광소자는 제조된 박유리인 박막 기판을 제2 버퍼막에 한 번의 접착공정을 통해 부착함으로써, 여러 번의 증착 공정을 통해 얻을 수 있던 종래의 보호막보다 공정이 단순하고 비용이 감소되는 효과가 있다. The organic electroluminescent device according to the present invention attaches the manufactured thin glass substrate to the second buffer film through a single bonding process, so that the process is simpler and the cost is reduced than the conventional protective film obtained through several deposition processes. It is effective.

이하, 첨부된 도면을 참조하여 본 발명에 따른 유기전계발광표시소자에 대해 설명한다. Hereinafter, an organic light emitting display device according to the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명의 실시예에 따른 유기전계발광표시소자의 단면도이다. 3 is a cross-sectional view of an organic light emitting display device according to an exemplary embodiment of the present invention.

유기전계발광표시소자는 도 3에 도시된 바와 같이, 하부 기판(100) 상부에 제1 전극(미도시), 적어도 발광층을 포함하는 유기물층(미도시) 및 제2 전극(미도시)로 이루어지는 유기발광소자(110: OLED, Organic Light Emitting Diode) 및 다수 개의 박막 트랜지스터를 포함하는 구동소자(미도시)가 구비되고, 유기발광소자(110) 및 구동소자(미도시)이 형성된 하부 기판(100) 전면에 형성된 패시베이션부가 구비된다. As shown in FIG. 3, the organic light emitting display device includes a first electrode (not shown), an organic material layer (not shown) including at least a light emitting layer, and a second electrode (not shown) on the lower substrate 100. A lower substrate 100 including a light emitting device 110 (OLED) and a driving device (not shown) including a plurality of thin film transistors, and an organic light emitting device 110 and a driving device (not shown) are formed. Passivation portion formed on the front surface is provided.

상기 하부기판(100)은 플렉서블 재질로 형성될 수 있으며, 상기 플렉서블 재질은 곡률 반경이 300㎜이하인 재질을 의미한다. 즉, 곡률 반경이 300 nm이상이 되는 경우에는 기판 자체가 잘 휘어지지 않는다는 것을 의미하는 것으로 통상의 절연 기판인 유리 등과 같은 재질의 경우 곡률 반경이 300nm 이상으로 어느 정도 휘어지나 본 발명에서 사용하고자 하는 기판인 플라스틱 등과 같은 재질과는 그 휘어지는 정도에서 차이가 있으므로 본 발명에서는 곡류 반경이 300nm 이상인 경우에는 적용되지 않는다. The lower substrate 100 may be formed of a flexible material, and the flexible material refers to a material having a radius of curvature of 300 mm or less. In other words, when the radius of curvature is 300 nm or more, it means that the substrate itself is not easily bent. In the case of a material such as glass, which is a general insulating substrate, the radius of curvature is bent to 300 nm or more, but it is intended to be used in the present invention. Since there is a difference in the degree of warpage with a material such as plastic, which is a substrate, the present invention does not apply when the grain radius is 300 nm or more.

상기 유기발광소자(110)는 전극과 유기물층이 평탄하게 증착된 구조를 가진다. 도 3에 구체적으로 도시되어 있지 않으나, 정공주입층, 정공전달층, 발광층 및 전자 전달층의 4가지 유기물층과 전극이 평탄하게 증착된 다층구조를 갖는다. 이에 두 전극 사이에 전압을 걸어주면 양극에서는 정공이, 음극에서는 전자가 유기물층에 주입되고 주입된 정공과 전자가 발광층에서 결합하여 여기자가 된 후, 이 여기자의 비활성 과정에서 빛을 발생시키며, 발광층의 종류에 따라 적색, 녹색 및 청색을 발생시킨다. The organic light emitting device 110 has a structure in which an electrode and an organic material layer are flatly deposited. Although not specifically illustrated in FIG. 3, four organic material layers including a hole injection layer, a hole transport layer, a light emitting layer, and an electron transport layer and an electrode have a multilayer structure in which the electrodes are flatly deposited. When voltage is applied between the two electrodes, holes are injected into the organic material layer in the anode, and electrons are injected into the organic material layer in the cathode, and the injected holes and electrons are combined in the light emitting layer to become excitons. Depending on the type, it produces red, green and blue.

상기 패시베이션부(120)는 플렉서블 기판인 하부기판(100)의 투습도가 낮기 때문에 수분 및 산소 등에 의해 유기발광소자(110)가 열화되는 것을 방지하기 위해 구비되는 투습방지막으로써, 제1 보호막(120a), 접착층(120b), 제2 보호막(120c) 및 박막 기판(150)이 적층 구비된다. Since the passivation part 120 has a low moisture permeability of the lower substrate 100, which is a flexible substrate, the passivation part 120 is a moisture permeation prevention film provided to prevent the organic light emitting device 110 from deteriorating due to moisture and oxygen. The adhesive layer 120b, the second passivation layer 120c, and the thin film substrate 150 are stacked.

상기 제1 보호막(120a)은 Al2O3, SiNx, SiO2, SiON로 이루어지는 군에서 선택되는 한 가지를 이용한 무기막으로 형성되고, 유기발광소자(110)을 상부 및 측부를 모두 덮도록 형성되며, 0.1㎛~ 10㎛정도의 두께로 형성된다. 그리고, 상기 제1 보호막(120a) 상에는 접착층(120b)가 도포되어 상기 제1 보호막(120a)과 제2 보호막(120c)을 접착한다. The first passivation layer 120a is formed of an inorganic layer using one selected from the group consisting of Al 2 O 3 , SiN x , SiO 2 , and SiON, and covers the upper and side portions of the organic light emitting element 110. It is formed, and is formed to a thickness of about 0.1㎛ ~ 10㎛. In addition, an adhesive layer 120b is coated on the first passivation layer 120a to bond the first passivation layer 120a and the second passivation layer 120c.

상기 제2 보호막(120c)은 PET(poly(ethylene terephthalate)), PEN(poly(ethylene naphthalate)), PC(poly(carbonate)),PES(poly(ethersulfone)), PAR(polyarylate), PSF(polysulfone) 및 COC(ciclic-olefin copolymer)로 이루어지는 군에서 선택되는 한 가지를 이용한 유기막으로 형성되고, 제1 보호막(120a) 상부에 형성되며, 50~ 100㎛정도 두께로 형성된다. The second passivation layer 120c may be formed of polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polycarbonate (PC), polyetherether (PES), polyarylate (PAR), and polysulfone (PSF). ) And COC (ciclic-olefin copolymer) is formed of an organic film using one selected from the group consisting of, is formed on the first protective film (120a), 50 ~ 100㎛ thickness is formed.

상기 박막 기판(120d)은 박유리(thin glass)로 형성되고, 제2 보호막(120c)상부에 형성되며, 50~ 100㎛정도 두께로 형성된다. 상기 박막 기판(120d)은 라미네이팅(laminating)시켜 상기 제2 보호막(120c)이 형성된 하부 기판(100)에 부착하거나, 도 4에 도시된 바와 같이, 두 개의 롤(200a, 200b)가 구비된 롤 투 롤(roll to roll)장치를 통해 상기 제2 보호막(120c)이 형성된 하부기판(100)에 부착한다. The thin film substrate 120d is formed of thin glass, is formed on the second passivation layer 120c, and has a thickness of about 50 to 100 μm. The thin film substrate 120d is laminated to be attached to the lower substrate 100 on which the second passivation layer 120c is formed, or as illustrated in FIG. 4, a roll provided with two rolls 200a and 200b. The second passivation layer 120c is attached to the lower substrate 100 on which the second passivation layer 120c is formed.

이때, 제2 보호막(120c) 및 박막 기판(120d)의 두께는 상기와 같이 각각 50~ 100㎛정도 형성될 수도 있고, 제2 보호막(120c) 및 박막 기판(120d)의 두께 합이 100~ 200㎛정도 형성될 수도 있다. In this case, the thicknesses of the second passivation layer 120c and the thin film substrate 120d may be about 50 μm to 100 μm, respectively, and the sum of the thicknesses of the second passivation layer 120c and the thin film substrate 120d may be 100 to 200. It may be formed about a micrometer.

상기 패시베이션부(120)는 하부기판(100)의 투습도가 낮기 때문에 수분 및 산소 등에 의해 유기발광소자(110)가 열화되는 것을 방지하기 위해 구비되는 투습방지막이다. 다시 말해, 박막 기판(120d)은 SiO2를 기본조성물로 가지는 박유리이고, 제1 보호막(120a)은 Al2O3, SiNx, SiO2, SiON들 중 어느 하나를 조성물로 가지므로, 외부로부터 수분 및 산소(H2O 및 O2)의 침투하게 되더라도 최외곽에 위치한 박막 기판의 SiO2의 조성물과 1차적으로 결합하고, 박막 기판에서 결합되지 못하고 잔존하는 수분 및 산소(H2O 및 O2)가 유기발광소자(110)의 외부를 둘러싸는 제1 보호막의 Al2O3, SiNx, SiO2, SiON들 중 어느 하나의 조성물과 2차적으로 결합하게 되어, 유기발광소자(110)까지 침투하는 것을 방지하게 된다. Since the passivation part 120 has a low moisture permeability of the lower substrate 100, the passivation part 120 is a moisture permeation prevention film provided to prevent the organic light emitting device 110 from deteriorating due to moisture and oxygen. In other words, the thin film substrate 120d is a thin glass having SiO 2 as a basic composition, and the first passivation layer 120a has any one of Al 2 O 3 , SiN x , SiO 2 , and SiON as a composition. Even though the penetration of moisture and oxygen (H 2 O and O 2 ), the primary bond with the composition of SiO 2 of the outermost thin film substrate, and the remaining water and oxygen (H 2 O and O remaining unbound on the thin film substrate) 2 ) is secondarily bonded to the composition of any one of Al 2 O 3 , SiN x , SiO 2 , SiON of the first protective film surrounding the outside of the organic light emitting device 110, the organic light emitting device 110 To prevent penetration.

또한, 제1 보호막(120a) 및 박막 기판(120d) 사이에 위치한 제2 보호막(120c)은 박막 기판(120d)과 1차적으로 결합되지 못하고 잔존하는 수분 및 산소(H2O 및 O2)의 이동거리를 확보하여 잔존한 수분 및 산소가 제1 보호막(120a)로 이동되도록 한다. In addition, the second passivation layer 120c disposed between the first passivation layer 120a and the thin film substrate 120d may not be primarily bonded to the thin film substrate 120d and may be formed of remaining moisture and oxygen (H 2 O and O 2 ). The movement distance is secured so that the remaining moisture and oxygen are moved to the first passivation layer 120a.

그리고, 제조된 박유리인 박막 기판(120d)을 제2 버퍼막(120c)에 한 번의 접착공정을 통해 부착함으로써 여러 번의 증착 공정을 통해 얻을 수 있던 종래의 보호막보다 공정이 단순하고 비용이 감소된다. In addition, by attaching the manufactured thin glass substrate 120d to the second buffer layer 120c through one bonding process, the process is simpler and the cost is reduced than a conventional protective film obtained through several deposition processes.

도 1a 및 도 1b는 종래 기술에 따른 유기전계발광표시소자의 단면도1A and 1B are cross-sectional views of an organic light emitting display device according to the related art.

도 2a 및 도 2b는 도 1a 및 도 1b의 유기전계발광표시소자의 수분침투경로를 도시한 도면2A and 2B illustrate a moisture permeation path of the organic light emitting display device of FIGS. 1A and 1B.

도 3은 본 발명에 따른 유기전계발광표시소자의 단면도3 is a cross-sectional view of an organic light emitting display device according to the present invention.

도 4는 본 발명에 따른 박막 기판의 접착하는 방법을 도시한 단면도4 is a cross-sectional view showing a method of bonding a thin film substrate according to the present invention.

<도면의 주요부위에 대한 부호의 설명><Explanation of symbols for major parts of drawings>

100: 하부 기판 110: 유기발광소자100: lower substrate 110: organic light emitting device

120: 패시베이션부 120a: 제1 보호막120: passivation unit 120a: first protective film

120b: 접착층 120c: 제2 보호막120b: adhesive layer 120c: second protective film

120d: 박막 기판120d: thin film substrate

Claims (7)

일면에 제1 전극, 적어도 발광층을 포함하는 유기막 및 제2 전극으로 이루어지는 유기 전계 발광 소자를 구비하는 하부기판과, A lower substrate having an organic electroluminescent device comprising a first electrode, an organic layer including at least a light emitting layer, and a second electrode on one surface thereof; 상기 유기전계발광소자의 투습방지막인 패시베이션부를 구비하고, It is provided with a passivation portion which is a moisture barrier film of the organic light emitting device, 상기 패시베이션부는 무기막인 제1 보호막, 접착층, 유기막인 제2 보호막 및 박유리인 박막 기판이 적층 구비된 것을 특징으로 하는 유기 전계 발광 표시 소자. The passivation unit is an organic electroluminescent display device, characterized in that the first protective film, an adhesive layer, an organic film, a second protective film, and a thin glass substrate is laminated. 제1 항에 있어서, 상기 무기막인 제1 보호막은 The method of claim 1, wherein the first protective film is an inorganic film Al2O3, SiNx, SiO2, SiON로 이루어지는 군에서 선택되는 한 가지를 이용하여 형성되고, 상기 유기발광소자 상부 및 측부를 덮도록 형성되며, 0.1㎛~ 10㎛의 두께로 형성되는 것을 특징으로 하는 유기전계발광표시소자. It is formed using one selected from the group consisting of Al 2 O 3 , SiN x , SiO 2 , SiON, and formed to cover the upper and side portions of the organic light emitting device, it is formed to a thickness of 0.1㎛ ~ 10㎛ An organic light emitting display device, characterized in that. 제1 항에 있어서, 상기 유기막인 제2 보호막은 The second protective film of claim 1, wherein the second protective film is an organic film. PET(poly(ethylene terephthalate)), PEN(poly(ethylene naphthalate)), PC(poly(carbonate)),PES(poly(ethersulfone)), PAR(polyarylate), PSF(polysulfone) 및 COC(ciclic-olefin copolymer)로 이루어지는 군에서 선택되는 한 가지를 이용하여 형성되고, 50~ 100㎛ 두께로 형성되는 것을 특징으로 하는 유기전계발광표시소자.Ethylene terephthalate (PET), ethylene naphthalate (PEN), poly (carbonate) (PC), poly (ethersulfone), PES (polyarylate), polysulfone (PSF), and ciclic-olefin copolymer An organic light emitting display device, characterized in that formed using one selected from the group consisting of 50 to 100㎛ thickness. 제1 항에 있어서, 상기 박유리인 박막기판은According to claim 1, wherein the thin glass substrate is 50~ 100㎛ 두께로 형성되는 것을 특징으로 하는 유기전계발광표시소자. An organic light emitting display device, characterized in that formed in 50 ~ 100㎛ thickness. 제1 항에 있어서, 상기 제2 보호막 및 박막 기판의 두께 합은 The method of claim 1, wherein the sum of the thicknesses of the second passivation layer and the thin film substrate is 100~ 200㎛ 두께로 형성되는 것을 특징으로 하는 유기전계발광표시소자. An organic light emitting display device, characterized in that formed to a thickness of 100 ~ 200㎛. 제1 항에 있어서, 상기 박막 기판은 The method of claim 1, wherein the thin film substrate 상기 제2 보호막이 형성된 상기 하부 기판에 라미네이팅(laminating)시켜 부착하거나 또는 두 개의 롤이 구비된 롤 투 롤(roll to roll)장치를 통해 부착하는 것을 특징으로 하는 유기전계발광표시소자. The organic light emitting display device according to claim 1, wherein the organic light emitting display device is attached to the lower substrate on which the second passivation layer is formed by laminating or by using a roll to roll device having two rolls. 제1 항에 있어서, 상기 하부기판은The method of claim 1, wherein the lower substrate 플렉서블 재질인 것을 특징으로 하는 유기전계발광표시소자. An organic light emitting display device, characterized in that the flexible material.
KR20080079354A 2008-08-13 2008-08-13 Organic light emitting Display KR101493092B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20080079354A KR101493092B1 (en) 2008-08-13 2008-08-13 Organic light emitting Display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20080079354A KR101493092B1 (en) 2008-08-13 2008-08-13 Organic light emitting Display

Publications (2)

Publication Number Publication Date
KR20100020666A true KR20100020666A (en) 2010-02-23
KR101493092B1 KR101493092B1 (en) 2015-02-23

Family

ID=42090625

Family Applications (1)

Application Number Title Priority Date Filing Date
KR20080079354A KR101493092B1 (en) 2008-08-13 2008-08-13 Organic light emitting Display

Country Status (1)

Country Link
KR (1) KR101493092B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011149317A2 (en) * 2010-05-28 2011-12-01 성균관대학교산학협력단 Flexible organic/inorganic composite protective film for preventing moisture and/or oxygen permeation, preparation method thereof, and electronic element containing the flexible organic/inorganic composite protective film
US8426883B2 (en) 2010-04-28 2013-04-23 Lg Innotek Co., Ltd. Light emitting device, method of manufacturing the light emitting device, light emitting device package, and lighting unit
KR20140077450A (en) * 2012-12-14 2014-06-24 엘지디스플레이 주식회사 Organic light emitting display panel and method of fabricating the same
KR20150138113A (en) * 2014-05-30 2015-12-09 삼성에스디아이 주식회사 Encapsulated device and method for preparing the same
US9728594B2 (en) 2014-12-19 2017-08-08 Samsung Display Co., Ltd. Display device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4288895B2 (en) * 2002-06-04 2009-07-01 コニカミノルタホールディングス株式会社 Method for producing organic electroluminescence
KR100628074B1 (en) * 2003-02-06 2006-09-27 대영산업개발 주식회사 Oeld panel with passive film and protection capsule
KR20070023454A (en) * 2005-08-24 2007-02-28 삼성전자주식회사 Organic electro luminescence display apparatus and organic thin film transistor for the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8426883B2 (en) 2010-04-28 2013-04-23 Lg Innotek Co., Ltd. Light emitting device, method of manufacturing the light emitting device, light emitting device package, and lighting unit
WO2011149317A2 (en) * 2010-05-28 2011-12-01 성균관대학교산학협력단 Flexible organic/inorganic composite protective film for preventing moisture and/or oxygen permeation, preparation method thereof, and electronic element containing the flexible organic/inorganic composite protective film
WO2011149317A3 (en) * 2010-05-28 2012-04-19 성균관대학교산학협력단 Flexible organic/inorganic composite protective film for preventing moisture and/or oxygen permeation, preparation method thereof, and electronic element containing the flexible organic/inorganic composite protective film
KR20140077450A (en) * 2012-12-14 2014-06-24 엘지디스플레이 주식회사 Organic light emitting display panel and method of fabricating the same
KR20150138113A (en) * 2014-05-30 2015-12-09 삼성에스디아이 주식회사 Encapsulated device and method for preparing the same
US9728594B2 (en) 2014-12-19 2017-08-08 Samsung Display Co., Ltd. Display device

Also Published As

Publication number Publication date
KR101493092B1 (en) 2015-02-23

Similar Documents

Publication Publication Date Title
EP3511808B1 (en) Display device
US9842894B2 (en) Organic light-emitting display apparatus and manufacturing method thereof
KR101962851B1 (en) Flexible organic light emitting display apparatus and the method for manufacturing the same
KR100873704B1 (en) Organic light emitting display device and fabrication method for the same
KR102424597B1 (en) flexible organic light emitting diode display device and method of fabricating the same
KR101420332B1 (en) Organic light emitting display apparatus
TWI455386B (en) Organic light emitting diode display
KR100656324B1 (en) Display device
KR101345344B1 (en) Organic led device
US20120217535A1 (en) Method of Encapsulating a Flexible Optoelectronic Multi-Layered Structure
KR20120138307A (en) Organic light emitting diode display and method for manufacturing the same
US20140209877A1 (en) TFT Substrate Including Barrier Layer, Organic Light-Emitting Display Device Including the TFT Substrate, and Method of Manufacturinq the TFT Substrate
KR20050051570A (en) Display element, optical device, and optical device manufacturing method
JP6692194B2 (en) Display device
US20210057658A1 (en) Flexible packaging structure and flexible display panel
KR20150053530A (en) Organic light emitting display device and method of manufacturing the same
US9755183B2 (en) Organic light emitting display device and method for manufacturing the same
KR20100020666A (en) Organic light emitting display
JP2006228570A (en) Electroluminescent element and electroluminescent panel
JP2005353398A (en) Display element, optical device, and manufacturing method of optical device
JP2001185346A (en) Self-luminescent device
KR101994836B1 (en) TFT substrate including barrier layer including silicon oxide layer and silicon silicon nitride layer, Organic light-emitting device comprising the TFT substrate, and the manufacturing method of the TFT substrate
KR101194859B1 (en) Light Emitting Diodes and Method for Manufacturing the same
CN115868246A (en) Light emitting device and insoluble film
KR20090105616A (en) Organic Light Emitting Display

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20190114

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20200116

Year of fee payment: 6