WO2007097545A1 - Dispositif plat à diodes électroluminescentes organiques à partir d'une pluralité oled transparentes combinées à émission double - Google Patents

Dispositif plat à diodes électroluminescentes organiques à partir d'une pluralité oled transparentes combinées à émission double Download PDF

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Publication number
WO2007097545A1
WO2007097545A1 PCT/KR2007/000823 KR2007000823W WO2007097545A1 WO 2007097545 A1 WO2007097545 A1 WO 2007097545A1 KR 2007000823 W KR2007000823 W KR 2007000823W WO 2007097545 A1 WO2007097545 A1 WO 2007097545A1
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Prior art keywords
light emitting
emitting device
oleds
organic light
transparent organic
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PCT/KR2007/000823
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English (en)
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Yang Tae Kim
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Yang Tae Kim
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Publication of WO2007097545A1 publication Critical patent/WO2007097545A1/fr

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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/32—Stacked devices having two or more layers, each emitting at different wavelengths
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8051—Anodes
    • H10K59/80516—Anodes combined with auxiliary electrodes, e.g. ITO layer combined with metal lines
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/90—Assemblies of multiple devices comprising at least one organic light-emitting element
    • H10K59/95—Assemblies of multiple devices comprising at least one organic light-emitting element wherein all light-emitting elements are organic, e.g. assembled OLED displays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3031—Two-side emission, e.g. transparent OLEDs [TOLED]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/805—Electrodes
    • H10K59/8052—Cathodes
    • H10K59/80524—Transparent cathodes, e.g. comprising thin metal layers
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/878—Arrangements for extracting light from the devices comprising reflective means

Definitions

  • the present invention relates to the high bright flat light emitting OLEDs device radiating various color lights of flat light emitting.
  • the present invention relates to the high bright flat light emitting OELDs device radiating various color lights of flat light emitting.
  • a light-emitting layer includes red and blue light emitting material uniformly dispersed in host light emission materials, so the apparatus has good electroluminescence characteristics. But the operation is difficult due to the difficulty of controlling concentration of a blue and red dopant during large manufacture.
  • a white light OLED making the white light emission possible, which is manufactured by attaching a green light-emitting layer having the domain which contains red fluorescent layer after attaching blue light-emitting layer in the hole- transport layer(HTL) in JP7142169 invented by Sato etc.
  • a white light expulsion device which is able to emit white light by reacting recombination of a hole and electron and includes the fluorescent substance in the cyan-red visible range in US Patent No.5405709 invented by Littman etc.
  • a true color pixel is formed by consecutively stacking and arraying three OLEDs radiating different primary color light of blue(B), green(G) and red(R) which are typical primary colors on one substrate.
  • the thin film forming of the insulating layer and metal electrode layer is repetitively manufactured on the organic layer, so it is limited that it is continuously performed for real operations in pertinent industry.
  • a white color display phase is formed by forming RGB color on the plane and combining RGB of each pixel through shadow masking technique such as described in US Patent No. 5742129 invented by Kenichi Nagayama etc.
  • LED multiple solid-state light emitting diode devices
  • a transparent organic light emitting device(T OLED) of the prior art depends on how to set up the transparent electrode used in the electrode of the anode in the transparent electrode of the cathode, which depends on researches on how to improve the existing conductivity, transmittance ratio, flatness and the existing conductivity, transmittance ratio, flatness and required from the transparent electrode film, and the flatness until now and how to make rapidly transparent oxide conductive in existing luminosity organic film without damage.
  • the laminate organic light-emitting diode device using the conventional one board has the difficulty in the manufacture due to repeatedly depositing the electrode layer of a metal on the organic layer.
  • the present invention is to provide the flat light emitting OELDs device of the substantial changing countenance light according to a transparent organic light emitting device(TOLED) having excellent performance and solving the above problem.
  • FIG. 1 A structure of the organic light-emitting device(OLED) of the typical conventional prior art is illustrated in figure 1, and conventional organic light-emitting device(OLED)(70) is manufactured on single board like the glass substrates (291) and mixes one or more organic layer(lOO).
  • the substrate(291), the anode electrode layer(311) as the first electrode device, and each organic layer(lOO) and the second electrode device(321) are included, and the organic layer(lOO) includes the hole implant layer(HIL)(110), hole-transport layer(HTL)(l l l), organic light-emitting layer(EML)(122), electron-transport layer(ETL)(l 13) and electron injection layer(EIL)(l 14).
  • the total thickness of a normal organic layer(lOO) is about 100-1500A.
  • a cathode electrode layer(321) is formed on the organic layer(lOO) as the second electrode device.
  • organic electroluminescent is induced by supplying electricity to the organic layer(lOO) by power feeding equipments (401, 402) electrically connected to conductive electrode devices (311, 321) as described in figure 1.
  • the cover(not illustrated) airtight-seals an OLED device(70) by being adhered on the lower part of a substrate(291) and upper part of a electrode device(321), which can prevent an organic light-emitting diode(OLED)(70) from being polluted by moisture or oxygen.
  • the organic light-emitting diode(OLED) in figure 1(70) is known to have typically a luminosity external quantum efficiency of 0.05 ⁇ 4 percent according to the radiation color and the structure thereof.
  • a transparent organic light emitting device(TOLED) or the transparent organic light emitting diode(TOLED) can be comprised of the substrate(291), and the first conductive elemental 1) and the second conductive element(321) as shown in Figure 1, differently, the light- transmissive substrate and transparent electrodes.
  • the most preferable a transparent organic light emitting device(TOLED) or the transparent organic light emitting diode(TOLED) for the first preferred embodiment is completed by binding the second power circuit(320) in a vacuum atmosphere in which moisture or oxygen etc. is extremely limited in a vacuum atmosphere in which moisture or oxygen etc. is extremely limited after depositing successively the organic layer(lOO) consisting of hole implant layer(HIL)(110), hole- transport layer(HTL)(l 11), the suitable host and the organic light-emitting layer(EML)(122) having a dopant, next, the electron-transport layer(ETL) (113), and the electron injection layer(EIL)(l 14) etc. on the first power circuit manufactured in advance(310) by a method including the vacuum evaporation etc.
  • the first power circui(310) and the second power circuit(320) forms Transparent electrode(312, 322) on the surface of the first, second substrate which is a transparent glass substrate or transparent fusible substrate and have the structure comprising auxiliary electrodes(313, 323) on transparent electrodes(312, 322).
  • Auxiliary electrodes(313, 323) take form and shape in which the center portion is vacant for light projected.
  • the thin film which materials consisting of one or more selected in the group consisting of indium tin oxide(ITO), indium oxide(ln ⁇ ), indium- zinc-oxide(IZO), and the tin oxide(TO) and zirconium oxide(ZO) on the first, and second substrate are sputtered in the plasma atmosphere in advance can be used as the first, and second transparent electrode, and the electrode of enough thickness can be used, which has the effect that the short circuit of a substrate can be minimized and the short circuit is prevented about the flexibility.
  • first and second transparent electrode(312, 322) are formed on the first, second substrate(311, 321) by forming materials comprising one or more selected in the group consisting of the indium tin oxide(ITO) of 0 ⁇ 100nm thicknesses, indium oxide(ln ⁇ ), indium-zinc-oxide (IZO), and the tin oxide(TO) and zirconium oxide(ZO) and a silver(Ag) layer of 0 ⁇ 70nm thickness and the first, and second transparent electrode(312, 322) on the first, second substrate in the form that a silver(Ag) layer is inserted between transparent electrode layers, the conductivity of metallic foil including a little bit silver can becomes good, so electronical surface resistance of the first and second power circuit can decrease, the short circuit about the flexibility can be protected and electrical resistance about the flexibility can be reduced, so it can have more efficient electrical performance.
  • ITO indium tin oxide
  • IZO indium-zinc-oxide
  • ZO zirconium oxide
  • the first transparent electrode(312) is formed on the first transparent substrate(311), and the first counter electrode(313) which its center is empty for light penetration and its rim is composed of materials having good conductivity is formed on the first transparent electrode (312)
  • the first transparent electrode(312) and the first counter electrode (313) become a normal anode electrode layer and constitute the first power circuit(310).
  • the second transparent electrode(322) is coated under the second transparent substrate and the second auxiliary electrode(323) which its center is empty for light penetration and its rim is composed of materials having good conductivity is formed under the second transparent electrode(322).
  • the second transparent electrode(322) and the second auxiliary electrode(313) become a normal anode electrode layer and constitute the second power circuit(310).
  • the first and second transparent electrode can be materials consisting of one or more selected in the group consisting of indium tin oxide(ITO), indium oxide(ln ⁇ ), indium- zinc-oxide(IZO), and the tin oxide (TO) and zirconium oxide(ZO) or conductivity polymer.
  • ITO indium tin oxide
  • IZO indium oxide
  • ZO zirconium oxide
  • the first and second power circuits (310, 320) can be prepared in advance.
  • the organic layer(lOO) is formed, it is completed by making the second transparent electrode(322) of the second power circuit(320) prepared in advance and the upper side of the electron injection layer(EIL)(l 14) intersect and binded by a method including a junction etc. in vacuum atmosphere in which moisture or oxygen etc. is extremely limited.
  • the organic light-emitting layer(EML)(122) is made to radiate recombination energy by being reunited with holes supplied(holes) to the hole transporting layer(HTL)(l 11) and electronicses supplied by the electron-transport layer(ETL)(l 13) while constituting ordinarily one layer of an organic layer(lOO) to a thickness of 100-500A.
  • the organic light-emitting layer(EML)(122) can be doped with the host in which the predetermined dopant makes the emission spectrum in the absorption region and the corresponding dopant in the phosphorescence and fluorescent material in order to adjust the radiation color and increase the electroluminescence efficiency.
  • the first and second auxiliary electrodes(312, 323) can be formed with an alloy such as Al, Cu, Mg/ Ag and a metal having good conductivity such as gold (Au) or silver (Ag) on Mg/ Ag.
  • the various material for example, pliable or soft substrate such as PES (poly ethersulf one), PC (polycarbonate), PET(polyethylene terephthalate) or PEN (poly ethylene naphthalate) can be applied on one side or a both-side of the second hard substrate.
  • PES poly ethersulf one
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PEN poly ethylene naphthalate
  • the normal organic layer(lOO) is interposed, the first transparent electrode(311) of the first power circuit(310) forms the anode electrode layer on the lower part, and the second transparent electrode layer(322) of the second power circuit(320) is comprised in the top as the cathode electrode layer.
  • Lower penetration light(502) projecting downward is generated by letting the light emitted from the organic light-emitting layer(EML)(122) of the organic layer(lOO) project the first power circuit(310) and top penetration light(501) projecting upward is generated by letting it the second power circuit(320).
  • the light reflecting plate(812) is positioned on the backplane of the first power circuit(310), the lower part light penetration light(502) is reflected on the light reflecting plate (812) and the string of reflection light(503) again projects a transparent organic light emitting device(TOLED)(77) and the reflection light(503) which is reflected on the boundary face of the second power circuit(320) and the upper penetration light(501) can be observed on frontal surface.
  • TOLED transparent organic light emitting device
  • FIG. 6 it is a schematical example diagram which briefly shows in order to illustrate the second preferred embodiment of the present invention.
  • a transparent organic light emitting device(TOLED)(77) of the first preferred embodiment performed in figure 2 is independently manufactured, and the first a transparent organic light emitting device(350), a transparent organic light emitting device emitting the light of the second color different with the first color(360), and a transparent organic light emitting devices including first, and the third a transparent organic light emitting device(370) emitting the light of the different color and then a transparent organic light emitting devices(350,360,370) are provided and the transparent organic light emitting devices(350,360,370) are arranged in the stacked form.
  • Transparent organic light emitting devices(350, 360, 370) having light-emitting property including blue light(B), green light(G) and red light(R) etc. according to component of organic materials in organic layers (150, 160, 170) of the first, second and third transparent organic light emitting devices emitting the first, second, and third color lights can be made up, and if the said devices are adhered closely, arranged in stacking form, and operated, a multiple transparent organic light emitting device (MTOLED)(777) letting various lights of three primaries of blue light(B), green light(G), and red light(R) (changing countenance light) emit to rear side of the first transparent organic light emitting device(350) and front side of the third transparent organic light emitting device(370) or emit white light to both side is completed.
  • MTOLED multiple transparent organic light emitting device
  • the first transparent organic light emitting device radiating the blue light(B) in the lower part of figure 7 (350)
  • the first transparent electrode(312a) which is comprised of The transparent first board layer(31 Ia) as the transparent electrode and The first power circuit consisting of the first counter electrode(313a) in which the electric conductance is good(310a) are prepared in advance.
  • the host which is suitable for the blue light emitting and the blue organic light emitting layer(EML)(125) doped to a dopant, next, the blue light emitting organic layer consisting of electron-transport layer (ETL) (113a), and the electron injection layer (EIL) (114a) etc.(150) are sequentially formed on the transparent electrode of the first power circuit(310a)(312a) by a method including vacuum evaporation.
  • the second power circuit similarly to the first power circuit (310a) formation, the second power circuit comprised of the transparent electrode(322a) and auxiliary electrode(323a) etc. on the second board layer (321a) (320a) is formed in advance.
  • the first a transparent organic light emitting device(350) radiating blue light(B) is completed by uniting the electron injection layer(EIL) (114a) upper side of the successively evaporated blue light emitting organic layer(150) and the second transparent electrode(322a) side.
  • the above junction is performed by a method such as a junction etc. in vacuum like the environment within the vacuum chamber in which the material promoting the oxidation such as moisture and oxygen is extremely restricted.
  • the blue organic light emitting layer(EML)(122) is comprised of the blue light emitting organic layer(150) to a thickness of about 100-500 A and The hole supplied from the hole transporting layer(HTL)(l 1 Ia) and Electronicses supplied from the electron-transport layer(ETL)(l 13a) are combined on the blue organic light-emitting layer(EML)(126) having a dopant and the host which is suitable for the blue light emitting and the recombination energy provides blue light emitting.
  • the first transparent electrode which is the transparent first substrate(31 Ib) comprised of the transparent electrode in the lower part while being comprised the middle part of figure 7(312b) and the first substrate consisting of the first counter electrode(313b)(310b) are prepared in advance.
  • the second a transparent organic light emitting device radiating green light(G)(360) is completed by combining the second transparent electrode(322b) of the second power circuit(320b) consisting of the second transparent electrode(322b) and the second auxiliary electrode (323b) etc. and The upper side of the successively evaporated organic layer (160) with the method of welding in a vacuum.
  • the above junction is performed by a method such as a junction etc. in vacuum like the environment within the vacuum chamber in which the material promoting the oxidation such as moisture and oxygen is extremely restricted.
  • a green light(G) organic light-emitting layer(EML)(126) is composed of a green luminescence organic layer(160) to a thickness of 100-500A and the hole supplied from the hole transporting layer(HTL)(l 1 Ib) and the electronicses supplied from the electron-transport layer(ETL)(l 13b) is combined on a green organic light-emitting layer(EML)(126), and the recombination energy provides green luminescence.
  • the third a transparent organic light emitting device radiating the red light(R) positioned in the upper layer(370) is positioned on the second a transparent organic light emitting device.
  • the transparent first substrate(31 Ic) from the lower part of the third a transparent organic light emitting device(370) and the first substrate consisting of the first transparent electrode (312c) and the first counter electrode(313c)(310c) can be prepared in advance
  • the third a transparent organic light emitting device radiating the red light(R)(370) is completed by welding the second transparent electrode(322c) of the second substrate (320c) comprised of the transparent electrode(322c) and the second auxiliary electrode(323c) etc. on the second substrate(321c) and The successively evaporated electron injection layer(EIL)(114c) in a vacuum.
  • the above junction is performed by a method such as a junction etc. in vacuum like the environment within the vacuum chamber in which the material promoting the oxidation such as moisture and oxygen is extremely restricted.
  • the red light(R) organic light-emitting layer(EML)(127) is comprised of the red light emitting organic layer(170) to a thickness of about 100-500 A and the hole supplied from the hole transporting layer(HTL) (11 Ic) and the electronicses supplied from the electron-transport layer (ETL)(113c) are combined on The red organic light- emitting layer(EML)(126) having a dopant and the host which is suitable for the red light emitting, and the recombination energy provides red light emitting.
  • the multiple a transparent organic light emitting device(MTOLED) (777) is completed by arranging The first, second and third a transparent organic light emitting device(350, 360, 370) which are independently manufactured in stacked form.
  • the order of the first transparent organic light emitting device radiating blue light(B)(350), the second transparent organic light emitting device radiating green light(G)(360), and the third transparent organic light emitting device radiating red light(370) is exemplified as stacking order, but the first, second, and third transparent organic light emitting devices (350, 360, 370) can be stacked in any stacking order.
  • FIG 8 is a cross-sectional view of the multiple a transparent organic light emitting device(MTOLED)(777) for briefly illustrating the principles of a drive of the multiple a transparent organic light emitting device (MTOLED) (777).
  • the first counter electrode (313a) positioned in the first a transparent organic light emitting device(350) is connected to the first power source hole motive(401a).
  • the first power source hole motive(401a) generates the first driving power(VCCl) operating the first transparent organic light emitting device (350).
  • the lightness of blue light (B) radiated by the first transparent organic light emitting device(350) is controlled by the size of the first driving power(VCCl).
  • the first counter electrode(313b) positioned in the second transparent organic light emitting device(360) is connected to the second power source hole motive(401b).
  • the second power source hole motive(401b) generates the second electricity(VCC2) determining the lightness of the green light(G) radiated from the second transparent organic light emitting device(360) with the second electricity (VCC2).
  • the first counter electrode(313c) positioned in the third transparent organic light emitting device(370) is connected to the first power source hole motive(401c).
  • the first power source hole motive(401c) generates the third power (VCC3) determining the lightness of the red light(R) radiated from the third transparent organic light emitting device(370) with the third driving power (VCC3).
  • VCC3 the third power
  • the lightness of the light radiated with the first, second and third transparent organic light emitting devices(350,360,370) can be separately controlled by controlling each voltage or the current amount which first transparent substrates (311a,311b,311c) is supplied through the first counter electrode(313a, 313b, 313c), and the clear control of the lightness of the separate first, second, and third transparent organic light emitting devices(350, 360, 370) is available with amount of the corresponding input voltage.
  • first, second and third driving power for operating the first, second and third transparent organic light emitting devices(350, 360, 370) described in the above is set to be polar, but in case of the order of organic materials is reversed and organic materials is evaporated, the polarity of the power source can be changed and applied.
  • FIG. 9 it is the flat light emitting device in which the changing countenance light(the various light) or the white light can be observed from the front side, if it is arranged including the rear substrate(811) on the rear side of the multiple transparent organic light emitting device(777), if it is arranged including the rear substrate (81 l)on the rear side of the multiple transparent organic light emitting device(777), the light reflecting plate(812) on the rear substrate(811), and the light reflecting plate(812) on the rear substrate(811), and the front substrate on the front side(851) as the third preferred embodiment of the present invention.
  • Various white lights are observed in the front substrate(851) by providing a plurality of transparent organic light emitting devices(350, 360, 370) including the first transparent organic light emitting device (TOLED)(350) radiating the blue light(B), the second transparent organic light emitting device(TOLED)(360) radiating the green light(G), and the third transparent organic light emitting device(T OLED) (370) radiating the red light(R) are independently provided, and letting each light of blue(B) (501B), green(G)(501G), and red(R)(501R) radiated on the front side project the first, second, and third transparent organic light emitting devices (350, 360, 370) and mixing blue(B)(501B), green(G)(501G), and red lights(R)(501R).
  • a flat light emitting device(OLEDs) including the rear substrate(811) on the rear side of the multiple transparent organic light emitting device(MTOLED)(777) and the front substrate(851) on the front side
  • a flat light emitting device(OLEDs) which if a plurality of transparent organic light emitting devices including the first transparent organic light emitting device(350) radiating the light of the blue(B), the second transparent organic light emitting device(360) radiating the green(G) light, and the third transparent organic light emitting device(370) radiating the light of the red(R)(350, 360, 370) are independently provided and is operated by supplying predetermined power source, each blue light(B)(502B), green light(G)(502G), and red light(R)(502R) is radiated forward and backward, and as to blue light(B)(503B), green light(G)(503G), and red light(R) (503R) radiated backward,
  • 360, 370 is examplified being separate for description, but the first, second, and third transparent organic light emitting devices (350, 360, 370), the front panel(851) and backplate(811) is completed by being adhered closely at most, arranged in stacked form and soldered.
  • a substrate can be used which is characterized that soft or pliable substrate such as PET, PES is adhered to one side or both- side of the second hard substrate for the front panel(851) and backplate(811),
  • the encapsulation of the packaging type which can protect from the oxide material including moisture or oxygen etc. can be possible by positioning the front substrate(851) and rear substrate(811) in sandwich form, and the first, second, and third transparent organic light emitting devices(350, 360, 370) in the middle of those, adhering those closely each other in vacuum atmosphere in which moisture or oxygen is extremely limited, heating the girth of the rear substrate(811) and front substrate (851), thermally joining each other and sealing those.
  • the present invention relates to the flat light emitting device by the multiple transparent organic light emitting device producing the substantial high brightness surface emitting, more particularly, to the organic light-emitting diode device of the surface light source which efficient various lights of changing countenance lights or the white light can be observed from the front side.
  • FIG. 1 shows an organic light-emitting DIODE (OLEDs) of prior art.
  • Figure 2 is a schematic side view of transparent organic light emitting device according to the present invention.
  • Figure 3 is a schematic side view of transparent organic light emitting device according to the present invention.
  • FIG. 1 is a schematic development view of the transparent organic light emitting device according to the present invention.
  • Figure 4 is a schematic cross-sectional view of the transparent organic light emitting device according to the present invention.
  • Figure 5 is the transparent organic light emitting device including a reflector according to the present invention.
  • Figure 6 is a structure of the multiple transparent organic light emitting device performed according to the present invention.
  • Figure 7 is a development view of the multiple transparent organic light emitting device performed according to the present invention.
  • Figure 8 is a multiple transparent organic light emitting device meaning cross- sectional view performed according to the present invention.
  • Figure 9 is a schematic side view of forward radiation in the flat light emitting
  • Figure 10 is a schematic side view of radiation by a reflector in the flat light emitting device which is performed according to the present invention.
  • Figure 11 is a schematic side view of whole radiation in the flat light emitting device which is performed according to the present invention.
  • the flat light emitting device(OLEDs) according to the present invention has various potential applicability.
  • LCD back light(OLED BLU) of the surface light source can be available for industrial use as wide range goodes including the device for displaying information, the LCD tele vis ion (LCD TV) apparatus, mobile phone, computer monitor, computer, personal digital assistant (PDAs), the vehicle, the TV monitor apparatus, printer, screen, advertising board, remote communications unit, traffic sign board, traffic sign, sound replay device, video camera, notebook computer, game console, digital camera, personal digital assistant (PDAs), electric and electronic appilance, electronics, building, construction material, vehicle, airplane, vehicle, illumination advertisement sign board, and the large area screen and bulletin board and the high brightness surface light source of the general lamp.
  • LCD TV LCD tele vis ion
  • PDAs personal digital assistant
  • the LCD back light(OLED BLU) of the surface light source can be available for industrial use as wide range goodes including the device for displaying information, the LCD tele vis ion (LCD TV) apparatus, mobile phone, computer monitor, computer, personal digital assistant (PDAs), the vehicle, the TV monitor

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Abstract

La présente invention concerne un dispositif plat à OLED d'émission de lumière d'éclairage de surface avec une lumière variée par le dispositif à diodes électroluminescentes organiques (OLED). L'invention concerne un dispositif plat d'émission de lumière par le dispositif d'émission de lumière organique transparent multiple, qui si les dispositifs d'émission de lumière organiques transparents indépendants irradiant une lumière de couleur primaire de lumière rouge (R), de lumière verte (V) et de lumière bleue (B) qui est la lumière primaire typique sont fabriqués séparément et disposés en empilement et alimentés, le dispositif d'émission de lumière organique transparent multiple est fabriqué de manière à permettre une émission de lumière de l'avant vers l'arrière par le rayonnement de lumière en trois bandes, si la lumière est concentrée en un point focal dans une direction fixe à l'aide d'un réflecteur et autre; et si chaque luminosité est contrôlée, une lumière blanche sensiblement en trois bandes peut être observée à l'avant. En particulier, l'invention concerne un appareil à dispositif OLED de source de lumière de surface qui est approprié pour une unité de rétroéclairage (BLU) de lumière blanche de source lumineuse de surface et un dispositif d'éclairage.
PCT/KR2007/000823 2006-02-20 2007-02-15 Dispositif plat à diodes électroluminescentes organiques à partir d'une pluralité oled transparentes combinées à émission double WO2007097545A1 (fr)

Applications Claiming Priority (2)

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KR20060015983 2006-02-20
KR10-2006-0015983 2006-02-20

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US7652280B2 (en) 2007-04-11 2010-01-26 General Electric Company Light-emitting device and article
EP2151877A1 (fr) * 2008-08-04 2010-02-10 General Electric Company Dispositif et article luminescent
GB2475026A (en) * 2009-08-07 2011-05-11 Alessandro Artusi Display for displaying digital images having improved contrast ratio
CN106641897A (zh) * 2017-02-27 2017-05-10 江苏集萃有机光电技术研究所有限公司 Oled光源及灯具
TWI603030B (zh) * 2016-12-26 2017-10-21 機光科技股份有限公司 Ｏｌｅｄ平面燈源模組
CN108391065A (zh) * 2018-04-13 2018-08-10 西安微电子技术研究所 一种高清视频实时半透明叠加方法
US20220231094A1 (en) * 2021-01-19 2022-07-21 Universal Display Corporation Transparent OLED Device

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US5917280A (en) * 1997-02-03 1999-06-29 The Trustees Of Princeton University Stacked organic light emitting devices
US6469437B1 (en) * 1997-11-03 2002-10-22 The Trustees Of Princeton University Highly transparent organic light emitting device employing a non-metallic cathode
US20030122480A1 (en) * 2001-12-31 2003-07-03 Mao-Kuo Wei Organic flat light-emitting device
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7652280B2 (en) 2007-04-11 2010-01-26 General Electric Company Light-emitting device and article
EP2151877A1 (fr) * 2008-08-04 2010-02-10 General Electric Company Dispositif et article luminescent
GB2475026A (en) * 2009-08-07 2011-05-11 Alessandro Artusi Display for displaying digital images having improved contrast ratio
TWI603030B (zh) * 2016-12-26 2017-10-21 機光科技股份有限公司 Ｏｌｅｄ平面燈源模組
CN106641897A (zh) * 2017-02-27 2017-05-10 江苏集萃有机光电技术研究所有限公司 Oled光源及灯具
CN106641897B (zh) * 2017-02-27 2023-08-15 江苏集萃有机光电技术研究所有限公司 Oled光源及灯具
CN108391065A (zh) * 2018-04-13 2018-08-10 西安微电子技术研究所 一种高清视频实时半透明叠加方法
CN108391065B (zh) * 2018-04-13 2021-06-15 西安微电子技术研究所 一种高清视频实时半透明叠加方法
US20220231094A1 (en) * 2021-01-19 2022-07-21 Universal Display Corporation Transparent OLED Device

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