With Photosensitive Layer Patents (Class 313/507)
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Patent number: 8395314Abstract: A light-emitting element includes a first interlayer that is disposed between a first and second light-emitting layers so as to be in contact with them and is constituted by containing the same or the same type of material as the host material of the first light-emitting layer and not substantially containing materials having a light-emitting property; and a second interlayer that is disposed between the second and a third light-emitting layer so as to be in contact with them and is constituted by containing the same or the same type of material as the host material of the second light-emitting layer and/or the host material of the third light-emitting layer and not substantially containing materials having a light-emitting property.Type: GrantFiled: December 21, 2010Date of Patent: March 12, 2013Assignee: Seiko Epson CorporationInventors: Hidetoshi Yamamoto, Tetsuji Fujita
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Patent number: 8395312Abstract: A light source having first and second LEDs and a phosphor layer that converts light generated by the first LED is disclosed. The first LED emits light at a first wavelength. The layer of phosphor is illuminated by the first LED, the phosphor being excited by light of the first wavelength to convert light of the first wavelength to a band of wavelengths having wavelengths between the first wavelength and a second wavelength. The second LED emits light at a third wavelength that is greater than the first wavelength. The phosphor is not substantially excited by light of the third wavelength. The combined light from the phosphor, and first and second LEDs is perceived as being white by a human observer.Type: GrantFiled: April 19, 2010Date of Patent: March 12, 2013Assignee: Bridgelux, Inc.Inventor: David Hum
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Patent number: 8395319Abstract: An encapsulated light-emitting device including a light-emitting system including an electroluminescent active layer positioned on a protective substrate and between two electrodes, a protective cover for the electroluminescent layer, attached to the substrate, a sealant sealing against liquid water and water vapor, a surround over the circumference of the device, made of at least one metal part or made of at least one plastic or glass part having a metal portion, the metal part or metal portion being used at least for a first electrical connection to one of the electrodes, or including at least one electroconductive layer deposited over one of the edges of the side of the substrate or of the cover and jutting out, between the surround and the substrate or the cover, for a first electrical connection to one of the electrodes.Type: GrantFiled: July 20, 2007Date of Patent: March 12, 2013Assignee: Saint-Gobain Glass FranceInventors: Svetoslav Tchakarov, Didier Jousse
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Patent number: 8395311Abstract: A light emitting apparatus is described. The apparatus includes a light emitting section having a plurality of light sources, the plurality of light sources each including a semiconductor light emitting element and one or more types of phosphors for performing a wavelength conversion on a portion of light outputted from the semiconductor light emitting element to radiate fluorescence, and the plurality of light sources each emitting light of different colors; and a light emitting control section for controlling emission intensity of each of the plurality of light sources to control a color temperature of a combined light emitted from the plurality of light sources.Type: GrantFiled: May 13, 2008Date of Patent: March 12, 2013Assignee: Sharp Kabushiki KaishaInventor: Taiji Morimoto
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Patent number: 8390015Abstract: An organic EL element includes a substrate and a light refractive layer, a first transparent electrode layer, an insulation layer, a hole transport layer, and a photosensitive resin layer stacked above the substrate. A luminous function layer is above the hole transport layer in a recess defined by the photosensitive resin layer. A second transparent electrode layer is above the luminous function layer. The light reflective layer, the first transparent electrode layer, the insulation layer, and the hole transport layer are formed above the substrate in a region isolated by the photosensitive resin layer. The photosensitive resin layer comprises a material that absorbs incident light of a predetermined wavelength. The first transparent electrode layer, the insulation layer, the hole transport layer, and the photosensitive resin layer each have a reflectance value that is between a local minimum value and a neighborhood value of the local minimum value.Type: GrantFiled: March 21, 2011Date of Patent: March 5, 2013Assignee: Panasonic CorporationInventors: Seiji Nishiyama, Takashi Ohta
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Patent number: 8378568Abstract: Provided is a white light emitting diode (LED) including a blue LED chip; and yellow, green, and red light emitting phosphors that are coated on the blue LED chip at a predetermined mixing ratio and converts light, emitted from the blue LED chip, into white light.Type: GrantFiled: July 14, 2011Date of Patent: February 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Jong Rak Sohn, Chul Soo Yoon, Chang Hoon Kwak, Il Woo Park
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Patent number: 8378570Abstract: It is an object of the present invention to provide a light emitting element with a low driving voltage. In a light emitting element, a first electrode; and a first composite layer, a second composite layer, a light emitting layer, an electron transporting layer, an electron injecting layer, and a second electrode, which are stacked over the first electrode, are included. The first composite layer and the second composite layer each include metal oxide and an organic compound. A concentration of metal oxide in the first composite layer is higher than a concentration of metal oxide in the second composite layer, whereby a light emitting element with a low driving voltage can be obtained. Further, the composite layer is not limited to a two-layer structure. A multi-layer structure can be employed. However, a concentration of metal oxide in the composite layer is gradually higher from the light emitting layer to first electrode side.Type: GrantFiled: April 28, 2011Date of Patent: February 19, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Ryoji Nomura
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Patent number: 8378569Abstract: An organic light emitting diode (OLED) display. The OLED display includes a first substrate member, a first conductive wire having a contact region and formed over the first substrate member, an insulating layer including a plurality of wire contact holes exposing a part of the contact region of the first conductive wire and formed over the first conductive wire, a second conductive wire formed over the first conductive wire and connected to the first conductive wire through the plurality of wire contact holes of the insulating layer, a sealant formed over the second conductive wire, a sealing member formed over the sealant, and a fill-up layer disposed above or under the contact region of the first conductive wire.Type: GrantFiled: May 21, 2009Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventor: Hye-Jin Shin
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Patent number: 8368302Abstract: A flat panel display device and a method of fabricating the same, the flat panel display device including: a first substrate including a display portion to display an image and a peripheral portion disposed outside the display portion; a second substrate facing the first substrate; a frit disposed on the peripheral portion, to attach the first substrate to the second substrate; and a signal interconnection having portions overlapping the frit, to transmit a signal to the display portion. Edges of the signal interconnection that are overlapped by the frit are patterned, to prevent delamination of the frit.Type: GrantFiled: July 20, 2010Date of Patent: February 5, 2013Assignee: Samsung Display Co., Ltd.Inventors: Tae-Wook Kang, Mi-Sook Suh, Zail Lhee, Hun Kim, Seung-Yeon Cho
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Patent number: 8358064Abstract: A light emitting and/or receiving apparatus in the form of a panel comprising a lattice of electroluminescent conductive polymer, a layer of transparent conductor, a clear substrate above the other layers and an integrated reflective panel located within the lattice layer.Type: GrantFiled: August 9, 2008Date of Patent: January 22, 2013Inventor: Roger Seaman
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Patent number: 8354789Abstract: A pixel arrangement of an organic light emitting display device includes first sub-pixels and second sub-pixels alternately arranged in a first direction to define a plurality of first columns along the first direction, and third sub-pixels arranged along the first direction to define a plurality of second columns along the first direction among the first columns, two second columns of the third sub-pixels being arranged among three first columns of the alternating first and second sub-pixels.Type: GrantFiled: January 31, 2011Date of Patent: January 15, 2013Assignee: Samsung Display Co., Ltd.Inventors: Gun-Shik Kim, Jae-Shin Kim, Jun-Sik Oh
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Patent number: 8343571Abstract: A laminated glass element is described, preferably a laminated safety glass element with integrated electroluminescence (EL) light structure, a method for producing a laminated glass element according to the invention, an insulating glass element containing at least one laminated glass element according to the invention and the use of a laminated glass element according to the invention as a decorative element and/or light element in interior spaces or for external use, preferably on external claddings of buildings, in or on items of equipment, in or on land or water vehicles or aircraft or in the advertising sector.Type: GrantFiled: May 16, 2008Date of Patent: January 1, 2013Assignee: Bayer MaterialScience AGInventors: Thilo-J. Werners, Michael Heite
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Patent number: 8344620Abstract: An active matrix electroluminescence display device and a method for fabricating the same, whereby damage caused by UV light rays during the fabrication process can be prevented, are disclosed. The active matrix electroluminescence display device includes a plurality of transistors formed on a substrate having an emissive area and a non-emissive area defined thereon, an insulating layer formed on the substrate and the thin film transistors, a metallic protective layer formed on the insulating layer of the non-emissive area, a first electrode formed on the insulating layer of the emissive area, an electroluminous layer formed on the first electrode, and a second electrode formed on the electroluminous layer.Type: GrantFiled: December 16, 2010Date of Patent: January 1, 2013Assignee: LG Electronics Inc.Inventor: Chang Nam Kim
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Patent number: 8338222Abstract: A method of fabricating an organic light emitting display is capable of improving device characteristics by patterning a plurality of organic layers of an emission layer and a charge transport layer using a thermal transfer method to optimize thicknesses of the organic layers corresponding to R, G and B pixels. The method includes: forming lower electrodes of R, G and B pixels on a substrate; forming an organic layer on the layer; and forming an upper electrode on the organic layer. Formation of the organic layer includes forming a portion of a hole injection layer and a hole transport layer of the R, G and B pixels over an entire surface of the substrate, the organic layer comprising a first portion and a second portion, the organic layer having a thickness equal to a sum of the thicknesses of the hole injection layer and the hole transport layer. Formation of the organic layer further comprises patterning the second portion of the organic layer, and patterning emission layers of the R, G and B pixels.Type: GrantFiled: December 22, 2004Date of Patent: December 25, 2012Assignee: Samsung Display Co., Ltd.Inventors: Mu-Hyun Kim, Byung-Doo Chin, Seong-Taek Lee
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Patent number: 8339026Abstract: Metal induced polycrystallized silicon is used as the anode in a light emitting device, such as an OLED or AMOLED. The polycrystallized silicon is sufficiently non-absorptive, transparent and made sufficiently conductive for this purpose. A thin film transistor can be formed onto the polycrystallized silicon anode, with the silicon anode acting as the drain of the thin film transistor, thereby simplifying production.Type: GrantFiled: March 8, 2011Date of Patent: December 25, 2012Assignee: The Hong Kong University of Science and TechnologyInventors: Hoi Sing Kwok, Man Wong, Zhiguo Meng, Jiaxin Sun, Xiuling Zhu
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Patent number: 8339039Abstract: When a light-emitting element having an intermediate conductive layer between a plurality of light-emitting layers is formed, the intermediate conductive layer can have transparency; and thus, materials are largely limited and the manufacturing process of an element becomes complicated by a conventional method. A light-emitting element according to the present invention is formed by sequentially stacking a pixel electrode, a first light-emitting layer, an intermediate conductive layer (including an electron injecting layer and a hole-injecting layer, one of which is island-like), a second light-emitting layer and an opposite electrode.Type: GrantFiled: September 12, 2011Date of Patent: December 25, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Ryoji Nomura, Satoshi Seo, Hiroko Abe, Yasuo Nakamura
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Patent number: 8334651Abstract: The invention relates to an electroluminescent device (10) comprising a substrate (40) and on top of the substrate (40) a substrate electrode (20), a counter electrode (30) and an electroluminescent layer stack with at least one organic electroluminescent layer (50) arranged between the substrate electrode (20) and the counter electrode (30), and at least one electrical shunt means (122) applied on top of the substrate electrode (20) to improve the current distribution over the substrate electrode (20), wherein the at least one electrical shunt means (122) is at least one element of the group of a wire, a metallic stripe or foil, said electrical shunt means (122) fixed to the substrate electrode (20) by a protective means (70) fully covering the electrical shunt means (122) with a shape suitable to prevent the emergence of a shadowing edge on the substrate electrode (20). The invention further relates to a method to manufacture such a device.Type: GrantFiled: January 27, 2010Date of Patent: December 18, 2012Assignee: Koninklijke Philips Electronics N.V.Inventor: Herbert Friedrich Boerner
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Publication number: 20120306362Abstract: A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): wherein. X1 and X2, which may be the same or different, are any of specific divalent groups; R1 to R10, which may be the same or different, are a hydrogen atom, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group; and R3 to R6 or R7 to R10 may be bonded to each other to form a ring.Type: ApplicationFiled: August 14, 2012Publication date: December 6, 2012Applicant: IDEMITSU KOSAN CO., LTD.Inventor: Hironobu MORISHITA
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Patent number: 8324806Abstract: One embodiment of the present invention is an organic EL element, including a substrate, a first electrode having a pixel region, the first electrode formed on the substrate, a multi-step partition wall, including a first partition wall formed on the substrate, the first partition wall sectioning the first substrate and having an inverse tapered shape, and a second partition wall formed on the first partition wall, the second partition wall having a bottom part which is narrower than a top part of the first partition wall, a light emitting medium layer, including a first light emitting medium layer formed on the pixel region, the first partition wall and the second partition wall, the first light emitting medium layer made of an inorganic material, and an organic light emitting layer on the first light emitting medium layer, and a second electrode formed on the light emitting medium layer, wherein the first light emitting medium layer is formed on the first electrode and the multi-layer partition wall.Type: GrantFiled: March 29, 2011Date of Patent: December 4, 2012Assignee: Toppan Printing Co., Ltd.Inventors: Shingo Kaneta, Ryo Shoda, Eiichi Kitazume
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Patent number: 8310147Abstract: Interfaces between layers in a light emitting element are eliminated by using a light emitting element with a mixed region comprising a hole transporting material and an electron transporting material. The light emitting element may further comprise a region with a dopant. By using this light emitting element, an organic luminescent element of low power consumption and long life is achieved, and the light emitting element can be used to manufacture a luminescent device and an electric appliance.Type: GrantFiled: July 10, 2009Date of Patent: November 13, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Shunpei Yamazaki
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Patent number: 8310152Abstract: Disclosed is a method for manufacturing an organic EL device which comprises a hole injection layer having a flat surface that is not contaminated. Specifically disclosed method for manufacturing an organic EL device, which comprises a step of forming an anode on a substrate; a step of forming a hole injection layer on the anode; a step of forming an inorganic film on the substrate and the hole injection layer; a step of forming a bank on the inorganic film in such a manner that at least a part of the inorganic film formed on the hole injection layer is exposed; a step of etching the exposed inorganic film by using the bank as a mask so that the hole injection layer is exposed therefrom; and a step of forming an organic light-emitting layer by applying an organic light-emitting material onto the exposed hole injection layer. The hole injection layer contains tungsten oxide or molybdenum oxide.Type: GrantFiled: December 2, 2008Date of Patent: November 13, 2012Assignee: Panasonic CorporationInventors: Shuhei Nakatani, Hidehiro Yoshida
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Patent number: 8304788Abstract: To further improve light extraction efficiency, a light-emitting apparatus includes a cavity for resonating light emitted from a emission layer between a first reflective surface and a second reflective surface. The first reflective surface is located on a first electrode side relative to the emission layer. The second reflective surface is located on a second electrode side relative to the emission layer. A periodic structure for extracting, to outside of a light-emitting device, light which is generated from the emission layer and wave-guided in an in-plane direction of the light-emitting device between the first reflective surface and the second reflective surface is formed in the first reflective surface, or in the second reflective surface, or between the first reflective surface and the second reflective surface.Type: GrantFiled: November 13, 2008Date of Patent: November 6, 2012Assignee: Canon Kabushiki KaishaInventor: Koichi Fukuda
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Patent number: 8304987Abstract: An organic light emitting display apparatus and a method of fabricating the same are provided. The organic light emitting display apparatus includes a pixel unit on which an organic light emitting device is formed, a thin film transistor (TFT) electrically connected to the pixel unit and a data line and a scan line electrically connected to the TFT and disposed crossing each other on a substrate. The data line and the scan line are formed in one layer. A bridge that allows one of the data line and the scan line to bypass the other is on an intersection of the data line and the scan line.Type: GrantFiled: October 20, 2010Date of Patent: November 6, 2012Assignee: Samsung Display Co., Ltd.Inventors: Min-Kyu Kim, Seong-Kweon Heo
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Patent number: 8304978Abstract: A light source module includes first and second light sources. The first light source includes a blue light-emitting body emitting blue light and a red fluorescent material disposed around the blue light-emitting body emitting red light by virtue of being excited by the blue light. The second light source is disposed adjacent to the first light source, and includes a green light-emitting body emitting green light. The blue and green light-emitting materials may include a light-emitting diode (LED) chip including substantially the same material. Accordingly, since a variation of light efficiency of the light source module with respect to temperature is small, a color feedback system may be omitted, and color reproducibility may be high.Type: GrantFiled: April 1, 2009Date of Patent: November 6, 2012Assignee: Samsung Display Co., Ltd.Inventors: Hyun-Jin Kim, Seok-Hyun Nam, Dong-Chin Lee, Hyuk-Hwan Kim, Min-Jeong Wang
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Patent number: 8283862Abstract: An object of the present invention is to realize a light emitting device having low power consumption and high stability, in addition to improve extraction efficiency of light generated in a light emitting element. At least an interlayer insulating film (including a planarizing film), an anode, and a bank covering an edge portion of the anode contain chemically and physically stable silicon oxide, or are made of a material containing silicon oxide as its main component in order to accomplish a light emitting device having high stability. Generation of heat in a light emitting panel can be suppressed in addition to increase in efficiency (luminance/current) of a light emitting panel according to the structure of the present invention. Consequently, synergistic effect on reliability of a light emitting device is obtained.Type: GrantFiled: October 15, 2010Date of Patent: October 9, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Junichiro Sakata, Takashi Hamada, Masaharu Nagai, Yutaka Matsuda
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Patent number: 8278817Abstract: To improve color reproduction areas in a display device having light-emitting elements. A display region has a plurality of picture elements. Each picture element includes: first and second pixels each including a light-emitting element which has a chromaticity whose x-coordinate in a CIE-XY chromaticity diagram is 0.50 or more; third and fourth pixels each including a light-emitting element which has a chromaticity whose y-coordinate in the diagram is 0.55 or more; and fifth and sixth pixels each including a light-emitting element which has a chromaticity whose x-coordinate and y-coordinate in the diagram are 0.20 or less and 0.25 or less, respectively. The light-emitting elements in the first and second pixels have different emission spectrums from each other; the light-emitting elements in the third and fourth pixels have different emission spectrums from each other; and the light-emitting elements in the fifth and sixth pixels have different emission spectrums from each other.Type: GrantFiled: July 13, 2011Date of Patent: October 2, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hajime Kimura, Atsushi Miyaguchi
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Patent number: 8269416Abstract: A compressed multilayered film for a flexible functional element includes a base film, a transparent conductive layer coated on one side of the base film, and a support layer with a low adhesion layer liner on an opposite side of the base film. The support layer is separable from the base film. The base film has a thickness of 3 to 25 ?m, and the transparent conductive layer is composed mainly of conductive oxide microparticles and a binder matrix. The multilayered film is compressed to increase the filling density of the conductive microparticles in the transparent conductive layer.Type: GrantFiled: June 26, 2006Date of Patent: September 18, 2012Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Yuki Murayama, Masaya Yukinobu
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Patent number: 8264144Abstract: An object is to provide a highly reliable light emitting device which is thin and is not damaged by external local pressure. Further, another object is to manufacture a light emitting device with a high yield by preventing defects of a shape and characteristics due to external stress in a manufacture process. A light emitting element is sealed between a first structure body in which a fibrous body is impregnated with an organic resin and a second structure body in which a fibrous body is impregnated with an organic resin, whereby a highly reliable light emitting device which is thin and has intensity can be provided. Further, a light emitting device can be manufactured with a high yield by preventing defects of a shape and characteristics in a manufacture process.Type: GrantFiled: July 9, 2009Date of Patent: September 11, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Yoshiaki Oikawa, Shingo Eguchi, Mitsuo Mashiyama, Masatoshi Kataniwa, Hironobu Shoji, Masataka Nakada, Satoshi Seo
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Patent number: 8263971Abstract: The OLED display device includes a first stack and a second stack that are separated from each other between an anode electrode and a cathode electrode, with a charge generation layer sandwiched between the first stack and the second stack, each of the first stack and the second stack having an emission layer. The first stack includes a blue emission layer formed between the anode electrode and the CGL. The second stack includes a fluorescent green emission layer and a phosphorescent red emission layer formed between the cathode electrode and the CGL. The blue emission layer includes one of a fluorescent blue emission layer and a phosphorescent blue emission layer.Type: GrantFiled: August 31, 2009Date of Patent: September 11, 2012Assignee: LG Display Co., Ltd.Inventor: Sung Hoon Pieh
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Patent number: 8258694Abstract: A flexible display device and a method for manufacturing a flexible display are provided. The flexible display device includes a flexible substrate, a display element layer formed on the flexible substrate; an insulating protective layer covering the display element layer; and a rigid substrate. The rigid substrate has an etching selectivity at least 20 times greater than that of the insulating protective layer.Type: GrantFiled: June 12, 2007Date of Patent: September 4, 2012Assignee: LG Display Co., Ltd.Inventor: Eui Yeol Oh
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Patent number: 8242692Abstract: The present invention relates to an organic light emitting diode (OLED) display and a manufacturing method thereof. The OLED display includes a substrate member that includes a plurality of pixel areas. A thin film transistor (TFT) is formed on the substrate member and includes a gate electrode, a source electrode, and a drain electrode. A planarization layer is formed on the TFT and includes a contact hole through which the drain electrode is partially exposed. A pixel electrode is formed on the planarization layer and is connected to the drain electrode of the TFT through the contact hole. A pixel defining layer is formed on the planarization layer and has a through opening. Light scattering spacers are formed on the pixel defining layer to scatter reflected light and may have various shapes and dimensions.Type: GrantFiled: August 20, 2009Date of Patent: August 14, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Eun-Ah Kim, Hee-Chul Jeon, Woo-Suk Jung, Hee-Seong Jeong, Joo-Hwa Lee, Chul-Woo Jeong, Noh-Min Kwak, Soon-Ryong Park
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Patent number: 8237360Abstract: Disclosed is a color display device containing plural pixels on a substrate, each pixel is composed of plural sub-pixels which emit lights different in wavelength in the visible range and a white sub-pixel, the plural sub-pixels and the white sub-pixel each have a white organic electroluminescence layer interposed between an optically semitransparent reflection layer and a light reflection layer, the optical distance between the optically semitransparent reflection layer and the light reflection layer in each of the plural sub-pixels forms a resonator having a distance for resonating emitted light, and the optical distance between the optically semitransparent reflection layer and the light reflection layer in the white sub-pixel is longer than the maximum optical distance between the optically semitransparent reflection layer and the light reflection layer in each of the plural sub-pixels.Type: GrantFiled: August 20, 2009Date of Patent: August 7, 2012Assignee: FUJIFILM CorporationInventor: Masaru Kinoshita
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Patent number: 8207666Abstract: An organic electroluminescent device is provided which includes a colored polarizer to reduce power consumption requirements for desired levels of brightness. The organic electroluminescent device includes a substrate, an anode electrode layer, an organic layer, a cathode electrode layer, and a colored polarizer provided on a surface of the substrate opposite a surface of the substrate on which the anode electrode layer is formed such that the colored polarizer polarizes light incident from the outside. The colored polarizer increases transmission of a given color of light based on the color(s) included in the polarizer to thereby decrease total current required by the organic electroluminescent device.Type: GrantFiled: December 31, 2009Date of Patent: June 26, 2012Assignee: LG Display Co., Ltd.Inventor: Ju Won Ahn
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Patent number: 8198802Abstract: An organic light emitting diode (OLED) display is disclosed. In one embodiment, the OLED display includes i) an OLED comprising i) a first electrode, ii) an organic emission layer formed on the first electrode, and iii) a second electrode formed on the organic emission layer, ii) a dual brightness enhancement film (DBEF) formed over the second electrode of the OLED, iii) a first polarizing plate formed on the DBEF, iv) a cholesteric liquid crystal (CLC) layer formed on the first polarizing plate, v) a phase delay plate that is a ¼ wavelength plate formed on the CLC layer and vi) a second polarizing plate formed on the phase delay plate.Type: GrantFiled: July 23, 2009Date of Patent: June 12, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Soon-Ryong Park, Hee-Seong Jeong, Woo-Suk Jung, Noh-Min Kwak, Chul-Woo Jeong, Eun-Ah Kim, Hee-Chul Jeon, Joo-Hwa Lee
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Patent number: 8183771Abstract: An organic light emitting diode and a method of fabricating the same. The organic light emitting diode includes a substrate, a first electrode on the substrate, emission layers on the first electrode including red, green and blue pixel regions, and a second electrode on the emission layers. The organic light emitting diode further includes an electron transport layer on the emission layers, and an intermediate layer formed by co-depositing metal quinolate and an organic material between at least one of the emission layers and the electron transport layer. The intermediate layer inhibits hole transport and increases a life span of the red pixel region.Type: GrantFiled: June 5, 2009Date of Patent: May 22, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Sung-Jin Choi, Ok-Keun Song, Hye-In Jeong, Doo-Hwan Kim, Min-Woo Lee, Jae-Goo Lee
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Patent number: 8183319Abstract: An aqueous dispersion including a partially fluorinated dispersant, an electrically conductive polymer and a film forming additive. The film forming additive includes a boiling temperature greater than about 85° C. (185° F.). In addition, the concentration of the film forming additive is less than the solubility limit of the additive in water. The dynamic surface tension of the dispersion including the film forming additive is less than about 60 dynes/cm at 100 ms surface age. A method for making an electrically conductive polymer film and devices including electrically conductive polymer film are also disclosed.Type: GrantFiled: October 9, 2008Date of Patent: May 22, 2012Assignee: Air Products and Chemicals, Inc.Inventors: Gang Chris Han-Adebekun, Thomas John Markley, Michael Scott Lowry
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Patent number: 8182304Abstract: An EL device with low manufacturing costs and improved yield due to simplified structure and use of an organic light emitting transistor and a method of manufacturing the same are disclosed.Type: GrantFiled: July 21, 2010Date of Patent: May 22, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Min-Chul Suh, Jae-Bon Koo, Hye-Dong Kim
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Patent number: 8159130Abstract: A foldable display device includes; a plurality of substrates separated from one another by predetermined intervals, a plurality of driving units including at least one driving unit disposed on each of the plurality of substrates, a flexible display unit disposed above the plurality of substrates and including a plurality of pixel electrodes respectively corresponding to the plurality of driving units, and a flexible connection unit disposed between the plurality of substrates and the flexible display unit and which electrically connects the plurality of driving units and the plurality of pixel electrodes.Type: GrantFiled: October 2, 2009Date of Patent: April 17, 2012Assignees: Samsung Electronics Co., Ltd., Samsung Mobile Display Co., Ltd.Inventors: Hong-shik Shim, In-seo Kee, Young-tea Chun
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Patent number: 8148894Abstract: The present invention relates to an OLED display. In some embodiments, the OLED display may employ combinations of linear polarization, circular or elliptical polarization, and phase delay in order to suppress reflection from external light while minimizing the loss of emitted light from the OLED display. For example, the OLED in the display includes a stack having a first electrode, an organic emission layer, and a second electrode, a DBEF formed on the OLED, a first polarizing plate formed on the DBEF, a second polarizing plate formed on the first polarizing plate, and a plurality of phase delay plates formed between the first polarizing plate and the second polarizing plate.Type: GrantFiled: August 5, 2009Date of Patent: April 3, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Soon-Ryong Park, Woo-Suk Jung, Hee-Seong Jeong, Hee-Chul Jeon, Chul-Woo Jeong, Jae-Yong Kim, Eun-Ah Kim, Noh-Min Kwak, Joo-Hwa Lee
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Publication number: 20120062109Abstract: An organic electroluminescent device comprises an anode; a cathode; a first electroluminescent layer between the anode and the cathode comprising an electron transporting material; and a second electroluminescent layer between the first electroluminescent layer and the anode. The second electroluminescent layer comprises a hole transporting material and an electroluminescent electron trapping material. The first electroluminescent layer may comprises a polymer having an electron transporting material and an electroluminescent material, and may include an optionally electroluminescent hole-transporting material. The electron transporting material and one or both of the hole transporting material of the first electroluminescent layer and the electroluminescent material of the first electroluminescent layer are part of the same molecule or polymer. Preferably, the electron transporting material comprises a plurality of adjacent arylene repeat units.Type: ApplicationFiled: April 15, 2010Publication date: March 15, 2012Applicant: SUMITOMO CHEMICAL COMPANY LIMITEDInventors: Martial Berry, Oscar Fernandez, Richard Wilson
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Publication number: 20120043882Abstract: An image display apparatus includes a rear plate and a face plate.Type: ApplicationFiled: June 29, 2011Publication date: February 23, 2012Applicant: CANON KABUSHIKI KAISHAInventor: Keiji Karube
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Patent number: 8110986Abstract: A dispersion-type EL element formed on a thin or flexible transparent plastic film and a method for manufacturing the same are provided. The dispersion-type electroluminescent element is a dispersion-type electroluminescent element with at least a transparent conductive layer, a phosphor layer, a dielectric layer, and a rear electrode layer sequentially formed on a transparent plastic film surface, in which a thickness of the transparent plastic film is less than 50 ?m, and the transparent conductive layer is formed by applying compression processing to an applied layer formed by applying a transparent conductive layer forming application liquid mainly composed of conductive oxide particles and a binder on the transparent plastic film surface and then, curing the compressed layer.Type: GrantFiled: June 26, 2006Date of Patent: February 7, 2012Assignee: Sumitomo Metal Mining Co., Ltd.Inventors: Masaya Yukinobu, Yuki Murayama, Hiroyuki Tanaka, Yasuo Tsukui
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Patent number: 8106580Abstract: The invention teaches electrospun light-emitting fibers made from ionic transition metal complexes (“iTMCs”) such as [Ru(bpy)3]2+(PF6.)2]/PEO mixtures with dimensions in the 10.0 nm to 5.0 micron range and capable of highly localized light emission at low operating voltages such as 3-4 V with turn-on voltages approaching the band-gap limit of the organic semiconductor that may be used as point source light emitters on a chip.Type: GrantFiled: September 18, 2008Date of Patent: January 31, 2012Assignee: Cornell UniversityInventors: Jose M. Moran-Mirabal, Harold G. Craighead, George G. Malliaras, Hector D. Abruna, Jason D. Slinker
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Patent number: 8106577Abstract: An organic EL device includes light-reflective electrodes; light-transmissive electrodes; organic EL layers that are respectively provided between the light-reflective electrodes and the light-transmissive electrodes to emit a plurality of color light components, the organic EL layer emitting a different color light component in each pixel; and transflective layers that are selectively provide in predetermined color pixels to reflect or transmit light emitted from the organic EL layers, respectively, each transflective layer being opposite to the light-reflective electrode with the organic EL layer interposed therebetween.Type: GrantFiled: May 22, 2009Date of Patent: January 31, 2012Assignee: Seiko Epson CorporationInventor: Hidekazu Kobayashi
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Patent number: 8106584Abstract: A light emitting device includes a base on which a wiring conductor is formed from the top surface to the bottom surface or the side face; a light emitting chip mounted on the top surface of the base and electrically connected with the wiring conductor; a first light transmitting member which covers the light emitting chip; a second light transmitting member provided above the first light transmitting member to cover the first light transmitting member, the second light transmitting member being formed of a light transmitting material containing fluorescent materials for converting in wavelength the light emitted from the light emitting chip; and a third light transmitting member provided between the first and second light transmitting members, wherein the refractive index n1 of the first light transmitting member, the refractive index n2 of the second light transmitting member and the refractive index n3 of the third light transmitting member satisfy the relation: n3<n1 and n3<n2, thereby achieving higType: GrantFiled: July 27, 2005Date of Patent: January 31, 2012Assignee: Kyocera CorporationInventors: Tomoya Tabuchi, Akira Miyake, Daisuke Sakumoto
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Patent number: 8106581Abstract: An organic electroluminescence element including an organic layer including a light-emitting layer disposed between a pair of electrodes, wherein the light-emitting layer contains at least one hole transporting light-emitting material and at least one electron-transporting host material, and a concentration of the hole transporting light-emitting material in the light-emitting layer decreases from an anode side toward a cathode side.Type: GrantFiled: July 23, 2008Date of Patent: January 31, 2012Assignee: Fujifilm CorporationInventors: Hisashi Okada, Manabu Tobise, Masaru Kinoshita
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Publication number: 20120007501Abstract: A display device is disclosed. The pixels of the display are formed so that a chromaticity range of the red organic emission layer satisfies an NTSC standard if ?pr=3.93557E?03 Wr2+1.07200E?01 Wr+6.10199E+02 and ?pr=610 nm, a chromaticity range of the green organic emission layer satisfies the NTSC standard if 3.33879E?03 Wg2+3.03246E?02 Wg+5.18496E+02??pg??5.09468E?03 Wg2+4.45905E?02 Wg+5.37887E+02, 515 nm??pg?540 nm, and Wg<50 nm, a chromaticity range of the blue organic emission layer satisfies the NTSC standard if ?2.59294E?03 Wb2+2.59334E?02 Wb+4.64771E+02??pb??5.24375E?03 Wb2+9.70218E?02 Wb+4.71672E+02, 450 nm??pb?480 nm, and Wb<70 nm, and at least one of the red organic emission layer, the green organic emission layer, and the blue organic emission layer satisfies the NTSC standard.Type: ApplicationFiled: July 7, 2011Publication date: January 12, 2012Applicant: Samsung Mobile Display Co., Ltd.Inventors: Shinichiro Tamura, Byoung-Ki Choi, Myeong-Suk Kim, Sang-Yeol Kim, Sung-Hun Lee
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Patent number: 8093804Abstract: An organic electroluminescent display device includes: a first substrate having an active area displaying images and a non-active area surrounding the active area; a switching thin film transistor and a driving thin film transistor connected to the switching thin film transistor in the active area on the first substrate; an organic electroluminescent diode connected to the driving thin film transistor; a dummy metal pattern at a corner portion of the non-active area on the first substrate; a second substrate facing and spaced apart from the first substrate, the second substrate including a groove; and a seal pattern attaching the first and second substrates, wherein the dummy metal pattern overlaps a residue at a corner portion of the groove.Type: GrantFiled: August 12, 2010Date of Patent: January 10, 2012Assignee: LG Display Co., Ltd.Inventors: Hyun-Ho Lee, Young-Hoon Sohn
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Patent number: 8084940Abstract: An OLED display including: a first substrate; an opposing second substrate; an organic light-emitting unit disposed on a side of the first substrate that faces the second substrate; a driving circuit disposed on a side of the second substrate that faces the first substrate and connected to the organic light-emitting unit; and a filter. The organic light-emitting unit includes that is an anode, a cathode, and an organic emission layer disposed therebetween. The organic emission layer includes a blue emission layer a yellow emission layer. The filter is to convert light from the yellow emission layer into red light and green light.Type: GrantFiled: June 2, 2009Date of Patent: December 27, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Eun-Ah Kim, Mu-Hyun Kim
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Patent number: 8084936Abstract: An organic light emitting device including a first electrode disposed on a substrate, a separator disposed on the first electrode in a lattice shape and having a groove-shaped isolation portion that gradually expands from an entrance toward an inside of the isolation portion, organic light emitting patterns disposed on the first electrode surrounded by the separator, the organic light emitting patterns being separated by the isolation portion, and second electrodes disposed on the organic light emitting patterns and separated by the isolation portion.Type: GrantFiled: June 28, 2007Date of Patent: December 27, 2011Assignee: LG Display Co., Ltd.Inventors: Jeong Hyun Kim, Jae Yoon Lee, Heung Lyul Cho, Joon Suk Lee, Hee Dong Choi