With Photosensitive Layer Patents (Class 313/507)
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Patent number: 11950458Abstract: A display apparatus includes a base substrate, a thin film transistor layer on the base substrate, an insulation layer on the thin film transistor layer, a first electrode on the insulation layer and in a light emitting area, a pixel defining layer having an opening that has a size and a shape substantially same as that of the first electrode, and on the insulation layer, a light emitting layer on the first electrode, and a second electrode on the light emitting layer.Type: GrantFiled: September 27, 2021Date of Patent: April 2, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: In Kyung Yoo, Donghyun Yang, SungBae Ju
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Patent number: 10749142Abstract: A display device includes: a substrate having: a display area; and a non-display area surrounding the display area; an inorganic layer disposed in the display area and the non-display area, the inorganic layer including openings exposing the substrate; a protruding portion disposed overlapping the openings, the protruding portion contacting the substrate exposed by the openings and including an organic material; and a passivation layer disposed on the inorganic layer, the passivation layer contacting the protruding portion. Such as structure is capable of minimizing or reducing the formation of cracks and preventing or reducing formed cracks from being propagated to the inside of the display device.Type: GrantFiled: January 4, 2019Date of Patent: August 18, 2020Assignee: Samsung Display Co., Ltd.Inventor: Nam Jin Kim
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Patent number: 10431775Abstract: An organic EL device has at least a first pixel and a second pixel different in the optical path length, in which the first pixel and the second pixel have a reflective layer, a protective layer, an optical path length adjusting layer, a first electrode, a light emitting function layer, and a second electrode, and the optical path length adjusting layer is an insulating layer and has a refractive index higher than a refractive index of the protective layer.Type: GrantFiled: June 2, 2017Date of Patent: October 1, 2019Assignee: SEIKO EPSON CORPORATIONInventors: Koya Shiratori, Takeshi Koshihara, Ryoichi Nozawa
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Patent number: 10299441Abstract: The present invention relates to a lighting device (100) to stimulate plant growth and bio-rhythm of a plant. The lighting device (100) comprising a solid state light source (102) arranged to emit direct red light having a wavelength of 600 to 680 nm, preferably 640 to 680 nm, and a wavelength converting member (106) arranged to receive at least part of said direct red light emitted from said solid state light source (102) and to convert said received direct red light to far-red light having a maximum emission wavelength of 700 to 760 nm, preferably 720 to 760 nm.Type: GrantFiled: January 7, 2014Date of Patent: May 28, 2019Assignee: SIGNIFY HOLDING B.V.Inventors: Rob Franciscus Maria Van Elmpt, Henricus Marie Peeters, Rifat Ata Mustafa Hikmet, Martinus Petrus Joseph Peeters, Dirk Veldman, Paulus Albertus Van Hal, René Theodorus Wegh
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Patent number: 10044000Abstract: A first light-emitting element and a second light-emitting element that have a resonance structure that causes output light from a light-emission functional layer to resonate between a reflective layer and a semi-transmissive reflective layer, and a pixel definition layer, and in which an aperture part is formed to correspond to each of the first light-emitting element and the second light-emitting element, are formed on a base. A first interval between the reflective layer and the semi-transmissive reflective layer in the first light-emitting element and a second interval between the reflective layer and the semi-transmissive reflective layer in the second light-emitting element are different, and a film thickness of the pixel definition layer is less than a difference between the first interval and the second interval.Type: GrantFiled: April 12, 2017Date of Patent: August 7, 2018Assignee: SEIKO EPSON CORPORATIONInventors: Ryoichi Nozawa, Atsushi Amano, Takeshi Koshihara, Akio Fukase, Shinichi Iwata
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Patent number: 9685629Abstract: An organic light emitting diode (OLED) display includes two or more spacers on a substrate, the two or more spacers being arranged at least at either one of a center point of a virtual quadrangle or a vicinity of the center point of the virtual quadrangle, an electrode portion at each apex of the virtual quadrangle, the electrode portion surrounding the two or more spacers, and a pixel definition layer on the electrode portion, the pixel definition layer including exposing the electrode portion.Type: GrantFiled: July 24, 2015Date of Patent: June 20, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventor: Dong-Seop Park
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Patent number: 9039476Abstract: A method of manufacturing a flexible display device includes: forming a soft substrate on a carrier substrate; forming a thin film layer comprising a display region on the soft substrate; removing a thin film layer excess portion of the thin film layer beyond an edge of the soft substrate; and separating the soft substrate and the carrier substrate.Type: GrantFiled: August 22, 2013Date of Patent: May 26, 2015Assignee: Samsung Display Co., Ltd.Inventors: Hyun-Jung Song, Dong-Un Jin
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Patent number: 8975812Abstract: A polarization structure for a display device is disclosed. In one embodiment, the structure includes a retardation layer, a first polarizing layer, a first uniaxial optical compensation layer, a second polarizing layer and a second uniaxial optical compensation layer. The retardation layer may be configured to create a phase difference between two polarization components of an incident light. The first polarizing layer may be disposed on the retardation layer. The first uniaxial optical compensation layer may be disposed on the first polarizing layer. The second polarizing layer may be disposed on the first uniaxial optical compensation layer. The second uniaxial optical compensation layer may be disposed between the first polarizing layer and the first uniaxial optical compensation layer or between the first polarizing layer and the second polarizing layer.Type: GrantFiled: September 13, 2012Date of Patent: March 10, 2015Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Man-Seob Choi, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo
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Patent number: 8969512Abstract: The present invention relates to polymers which contain at least one carbazole structural unit of the general formula (I) where Ar1, Ar2, Ar3 is each, independently of one another, an aryl or heteroaryl group, which may be substituted by one or more radicals R of any desired type; m, o is, independently of one another, 0 or 1; n is 1, 2 or 3 and the dashed lines represent the linking in the polymer; and at least one arylamine structural unit of the general formula (II) and/or (III) where Ar4, Ar5, Ar7, Ar8 is each, independently of one another, an aryl or heteroaryl group, which may be substituted by one or more radicals R of any desired type; Ar6 is an aryl or heteroaryl group, which may be substituted by one or more radicals R of any desired type, or represents a group of the formula Ar9-Y—Ar9, where Ar9 is in each case, independently, an aryl or heteroaryl group, which is substituted by one or more radicals R of any desired type or which may be linked to one another, and Y is a spacer group or a direct bonType: GrantFiled: August 1, 2011Date of Patent: March 3, 2015Assignee: Merck Patent GmbHInventors: Niels Schulte, Anna Hayer, Aurélie Ludemann
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Patent number: 8970104Abstract: A lighting portion is attached to a reflective liquid crystal display portion. A first transparent substrate and a second transparent substrate made of a glass substrate etc. are attached to each other with a sealing layer coated on those peripheral portions therebetween. The back surface of the first transparent substrate is attached to the reflective liquid crystal display portion, and an organic EL element is formed on the front surface of the first transparent substrate. The organic EL element is sealed in a space surrounded by the first transparent substrate, the second transparent substrate, and the sealing layer. The organic EL element is formed in a region corresponding to a pixel region of the reflective liquid crystal display portion. A desiccant layer is formed on the front surface of the second transparent substrate.Type: GrantFiled: July 16, 2014Date of Patent: March 3, 2015Assignee: Epson Imaging Devices CorporationInventors: Kenji Tanase, Kazunobu Mameno, Norio Koma, Manabu Takemoto
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Patent number: 8927327Abstract: There is provided an organic light emitting display device including a first substrate; an organic light emitting unit formed on the first substrate; a second substrate disposed on the organic light emitting unit; and an adhesive unit for adhering the first substrate and the second substrate to each other, wherein the adhesive unit includes a sealant, and particles that are arranged in the sealant so as to block penetration of external impurities. There is further provided a method of manufacturing the organic light emitting display device.Type: GrantFiled: October 15, 2013Date of Patent: January 6, 2015Assignee: Samsung Display Co., Ltd.Inventors: Min-Ho Oh, Yoon-Hyeong Cho, Byoung-Duk Lee, So-Young Lee, Sun-Young Lee, Jong-Hyuk Lee
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Patent number: 8866379Abstract: A display device and a method of manufacturing the same are provided. The display device includes: a display panel; a cover on the display panel; an adhesive on at least one of the cover or the display panel to attach the cover to the display panel; and a flow prevention member on at least one of the display panel or the cover, wherein the adhesive member is arranged at an inner space of the flow prevention member.Type: GrantFiled: February 5, 2013Date of Patent: October 21, 2014Assignee: Samsung Display Co., Ltd.Inventor: Nam-Jin Jang
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Patent number: 8860306Abstract: 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: September 5, 2012Date of Patent: October 14, 2014Assignee: 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: 8860307Abstract: An improved illumination apparatus for the dazzle-free illumination of a region monitored by a night vision instrument is provided. The illumination apparatus has an illumination device, which has at least one light-emitting diode chip and a luminous means. The light-emitting diode chip is formed to emit electromagnetic radiation of a first wavelength range. The luminous means is formed to convert the radiation of the first wavelength range into light with light in a second wavelength range. The second wavelength range is shorter than 610 nm.Type: GrantFiled: January 18, 2013Date of Patent: October 14, 2014Assignee: Diehl Aerospace GmbHInventor: Frank Schmid
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Patent number: 8860305Abstract: A method for forming a fritted cover sheet for sealing a glass package includes providing a transparent substrate having a sealing surface and a backing surface and forming at least one mask on one of the sealing surface of the substrate or the backing surface of the substrate. A sealing frit may be formed on the sealing surface of the substrate such that the at least one mask is positioned adjacent a perimeter defined by the sealing frit.Type: GrantFiled: July 9, 2009Date of Patent: October 14, 2014Assignee: Corning IncorporatedInventors: John S. Abbott, Jr., Kelvin Nguyen, Lu Zhang
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Patent number: 8847483Abstract: As a result of miniaturization of a pixel region associated with an improvement in definition and an increase in a substrate size associated with an increase in area, defects due to precision, bending, and the like of a mask used at the time of evaporation have become issues. A partition including portions with different thicknesses over a pixel electrode (also referred to as a first electrode) in a display region and in the vicinity of a pixel electrode layer is formed, without increasing the number of steps, by using a photomask or a reticle provided with an auxiliary pattern having a light intensity reduction function made of a diffraction grating pattern or a semi-transmissive film.Type: GrantFiled: May 13, 2013Date of Patent: September 30, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideaki Kuwabara, Hideto Ohnuma
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Patent number: 8847486Abstract: A light emitting device package is disclosed. The light emitting device package includes a light emitting device, a body that includes first and second lead frames electrically connected to the light emitting device and has a cavity disposed on the first and second lead frames, and a resin material that fills the cavity and includes a main material having a vinyl group (—CH?CH2) and a sub-material having a plurality of silane groups (Si—H). In the resin material, the vinyl groups and the silane groups are cross-linked to each other by curing. According to an FT-IR signal, an optical density (absorbance) of silane groups (Si—H) not reacted with the vinyl groups (—CH?CH2) may be in the range of 0.0002 to 0.01 (arb. unit).Type: GrantFiled: January 8, 2013Date of Patent: September 30, 2014Assignee: LG Innotek Co., Ltd.Inventor: Jina Kwon Kwon
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Patent number: 8842255Abstract: Disclosed are a light source module and a lighting apparatus having the same. The light source module includes a body having a cavity, a plurality of lead frames in the cavity, a light emitting chip on at least one of the lead frames, a polymer layer disposed on the body to refract light emitted from the light emitting chip, a first electrode layer disposed on the polymer layer to emit incident light, and a second electrode layer interposed between the polymer layer and the body to transmit the light emitted from the light emitting chip.Type: GrantFiled: October 22, 2012Date of Patent: September 23, 2014Assignee: LG Innotek Co., Ltd.Inventor: Youngbong Yoo
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Patent number: 8841832Abstract: 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: January 4, 2013Date of Patent: September 23, 2014Assignee: Samsung Display Co., Ltd.Inventor: Hye-Jin Shin
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Patent number: 8829778Abstract: A white light-emitting semiconductor device having improved reproducibility of bright red. The device outputs light having a blue component, a green component, and a red component. Each of the light components (blue, green, and red) is based on a light-emitting semiconductor element and/or a phosphor that absorbs light emitted by a light-emitting semiconductor element and emits light through wavelength conversion. The outputted light has a spectrum which has a maximum wavelength in the range of 615-645 nm, and the intensity at a wavelength of 580 nm of the outputted light, which has been normalized with respect to luminous flux, is 80-100% of the intensity at a wavelength of 580 nm of standard light for color rendering evaluation, which has been normalized with respect to luminous flux.Type: GrantFiled: September 30, 2013Date of Patent: September 9, 2014Assignee: Mitsubishi Chemical CorporationInventors: Hiroaki Sakuta, Kazuhiko Kagawa, Yoshihito Satou, Hiroaki Okagawa, Shin Hiraoka
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Patent number: 8773015Abstract: Disclosed is a method for manufacturing an organic electroluminescent (EL) element which is provided with a pair of electrodes and two or more organic layers disposed between the electrodes, and which includes light-emitting layers as the two or more organic layers. The manufacturing method for an organic EL element includes: a step for forming one electrode of the pair of electrodes; a step for forming the two or more organic layers which have a periodic structure wherein the propagation direction of light propagating in a direction substantially perpendicular to the thickness direction of the light-emitting layers is inclined in said thickness direction; and a step for forming the other electrode of the pair of electrodes.Type: GrantFiled: November 9, 2010Date of Patent: July 8, 2014Assignees: Sumitomo Chemical Company, Limited, Agency for Science, Technology and ResearchInventors: Kyoko Yamamoto, Jarrett Dumond, Hong Yee Low
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Patent number: 8702464Abstract: A method of manufacturing an organic EL display device that includes an element substrate on which a first organic luminescent material and a second organic luminescent material are formed, includes forming the first organic luminescent material by dripping the first organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a first direction, and forming the second organic luminescent material by dripping the second organic luminescent material from an inkjet nozzle on the element substrate while relatively moving the inkjet nozzle and the element substrate in a direction perpendicular to the first direction.Type: GrantFiled: December 6, 2012Date of Patent: April 22, 2014Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Yuko Matsumoto, Hidehiro Sonoda, Noboru Kunimatsu
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Patent number: 8686636Abstract: A lamp assembly is provided, that utilizes a light source including an LED element without cutting part of light therefrom and capable of forming a luminance distribution where the light with a maximum peak portion can be arranged substantially at (i.e., at or near) the cutoff line, thereby improving light utilization efficiency. The lamp assembly with an illumination direction can include a light source including an LED element with an emission surface, and a projection optical system for projecting an image of the light source in the illumination direction so that a desired light distribution pattern can be formed on a virtual vertical screen. The light source can have a rectangular shape having long sides and short sides, and can be configured to provide a luminance distribution on the emission surface such that a luminance peak portion is provided at or near one of the long sides.Type: GrantFiled: August 24, 2011Date of Patent: April 1, 2014Assignee: Stanley Electric Co., Ltd.Inventors: Tatsuma Saito, Yusuke Yokobayashi, Shigeru Murata
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Patent number: 8686633Abstract: An organic light emitting display device (OLED) includes: a substrate; a first anode layer disposed on the substrate and including a plurality of first projections; a second anode layer formed on the first anode layer and including a plurality of second projections; an organic emission layer formed on the second anode layer; and a cathode layer formed on the organic emission layer. As a result, the anodes are formed to have a double projection structure to enhance light extraction efficiency.Type: GrantFiled: December 19, 2012Date of Patent: April 1, 2014Assignee: LG Display Co., Ltd.Inventors: Jung-Sik Jo, So-Young Jo
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Patent number: 8648527Abstract: Provided is a display apparatus using an organic EL device in which blur in a display image to be a problem for the display apparatus is reduced while propagating light propagating through a high-refractive-index transparent layer is efficiently extracted outside. The display apparatus has a configuration in which a high-refractive-index transparent layer is provided on a light exit side of the organic EL device, a light extraction structure is provided on the high-refractive-index transparent layer so as to surround each of subpixels, a visible light absorbing member is arranged between pixels adjacent to each other, and the visible light absorbing member is not arranged in a region between subpixels adjacent to each other within a pixel.Type: GrantFiled: September 24, 2012Date of Patent: February 11, 2014Assignee: Canon Kabushiki KaishaInventors: Satoru Shiobara, Takayuki Sumida, Koji Ishizuya
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Patent number: 8643273Abstract: A light emitting diode device is provided. The light emitting diode device comprises a light emitting diode element, an encapsulation layer, and a plurality of pillars. The encapsulation layer is disposed on the light emitting diode element, and the pillars are disposed on the encapsulation layer. The pillars are formed by a light transmissible material.Type: GrantFiled: July 30, 2012Date of Patent: February 4, 2014Assignee: Walsin Lihwa CorporationInventors: Chung-I Chiang, Chuan-Fa Lin, Ching-Huan Liao
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Patent number: 8624487Abstract: A barrier film composite includes a film with an undulating surface; and at least one decoupling layer and at least one barrier layer disposed on the undulating surface of the film.Type: GrantFiled: December 29, 2010Date of Patent: January 7, 2014Assignee: Samsung Display Co., Ltd.Inventors: Dong-Won Han, Robert Jan Visser, Lorenza Moro
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Patent number: 8618729Abstract: In at least one embodiment of the organic light-emitting diode (10), the latter comprises a first electrode (1), which is formed with a metal, and a second electrode (2). In addition, the organic light-emitting diode (10) contains an organic layer sequence (3) located between the first electrode (1) and the second electrode (2). Moreover, the organic light-emitting diode (10) comprises a radiation-transmissive index layer (4), which is located on an outer side (11) of the first electrode (1) remote from the organic layer sequence (3). The average refractive index of the index layer (4) is greater than or equal to the average refractive index of the organic layer sequence (3). At least some of the electromagnetic plasmon radiation (P) generated by the organic light-emitting diode (10) passes through the index layer (4).Type: GrantFiled: May 27, 2010Date of Patent: December 31, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Joerg Frischeisen, Stefan Nowy, Wolfgang Bruetting
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Patent number: 8598786Abstract: An organic light-emitting display apparatus includes: a substrate; a first electrode on the substrate; an organic emission layer on the first electrode; a second electrode on the organic emission layer; and a sealing layer including a capping film, a first inorganic film, a first organic film, a second inorganic film and a hydroxyquinoline-based blocking film between the second electrode and the first organic film that are sequentially stacked on the second electrode, the hydroxyquinoline-based blocking film comprising a hydroxyquinoline-based compound.Type: GrantFiled: October 23, 2012Date of Patent: December 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Nam-Jin Kim, Chul-Hwan Park
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Patent number: 8598788Abstract: A system for displaying images employing an organic electroluminescent device is provided. The organic electroluminescent device includes a first electrode, an organic electroluminescent element disposed on the first electrode, a second electrode disposed on the organic electroluminescent element, and a color tuning element disposed on the second electrode. In particular, the color tuning element has a thickness range T1: 3500 ??T1?4500 ?, 6500 ??T1?7500 ?, 9500 ??T1?10500 ?, 11000 ??T1?12000 ?, 13500 ??T1?14500 ?, 16500 ??T1?17500 ?, or 18500 ??T1?19500 ?.Type: GrantFiled: August 27, 2009Date of Patent: December 3, 2013Assignee: Chimei Innolux CorporationInventors: Po-Kun Su, Jui-Hsiang Yen, Ryuji Nishikawa
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Patent number: 8586970Abstract: There is provided an organic light emitting display device including a first substrate; an organic light emitting unit formed on the first substrate; a second substrate disposed on the organic light emitting unit; and an adhesive unit for adhering the first substrate and the second substrate to each other, wherein the adhesive unit includes a sealant, and particles that are arranged in the sealant so as to block penetration of external impurities. There is further provided a method of manufacturing the organic light emitting display device.Type: GrantFiled: November 17, 2010Date of Patent: November 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Min-Ho Oh, Yoon-Hyeong Cho, Byoung-Duk Lee, So-Young Lee, Sun-Young Lee, Jong-Hyuk Lee
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Patent number: 8586207Abstract: Provided are a fused polycyclic compound obtained by expanding the conjugated system of a chrysene skeleton, and an organic light emitting device using the compound. The organic light emitting device has an optical output with high efficiency and high luminance, and is extremely durable.Type: GrantFiled: May 18, 2009Date of Patent: November 19, 2013Assignee: Canon Kabushiki KaishaInventors: Takayuki Horiuchi, Jun Kamatani, Satoshi Igawa, Naoki Yamada, Masashi Hashimoto, Tetsuya Kosuge
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Patent number: 8569946Abstract: An organic light emitting display device includes a first substrate including a pixel region in which at least one organic light emitting diode including a first electrode, an organic layer, and a second electrode is formed and a non-pixel region formed beside the pixel region. The device includes a second substrate and a frit provided between the non-pixel region on the first substrate and the second substrate. A reflection prevention layer is formed on at least one surface of the second substrate.Type: GrantFiled: September 29, 2006Date of Patent: October 29, 2013Assignee: Samsung Display Co., Ltd.Inventors: Seung Yong Song, Jin Woo Park, Young Seo Choi, Young Cheol Zu
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Patent number: 8547010Abstract: Disclosed is a color adjusting arrangement comprising: i) a first wavelength converting material arranged to receive ambient light and capable of converting ambient light of a first wavelength range into light of a second wavelength range, and/or reflecting ambient light of said second wavelength range, said second wavelength range being part of the visible light spectrum; and ii) a complementary wavelength converting material arranged to receive ambient light and capable of converting part of said ambient light into light of a complementary wavelength range, which is complementary to said second wavelength range, and arranged to allow mixing of light of said second wavelength range and said complementary wavelength range; such that light of said second wavelength range that is emitted and/or reflected by said first wavelength converting material and light of said complementary wavelength range is mixed when leaving the color adjusting arrangement towards a viewing position, the light leaving the color adjustType: GrantFiled: March 15, 2010Date of Patent: October 1, 2013Assignee: Koninklijke Philips N.V.Inventor: Hekdrik J. B. Jagt
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Patent number: 8541940Abstract: 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: December 27, 2011Date of Patent: September 24, 2013Assignee: Cornell UniversityInventors: Jose M. Moran-Mirabal, Harold G. Craighead, George G. Malliaras, Héctor D. Abruna, Jason D. Slinker
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Patent number: 8536780Abstract: A lighting device whose attachment position can be easily changed and an attachment board of the lighting device are provided. The lighting device employs a structure in which an attachment terminal included in a housing to which a lightweight planar light-emitting element is fixed is inserted into the attachment board, so as to fix the housing, and power is supplied from two wirings, which have different polarities and are provided inside the attachment board, to the light-emitting element through the attachment terminal.Type: GrantFiled: January 20, 2012Date of Patent: September 17, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Kenichi Wakimoto
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Publication number: 20130229598Abstract: A light-emitting element includes a base substrate and a light-emitting layer that is formed on the base substrate. The light-emitting layer includes at least a fluorescent material that absorbs excitation light with a predetermined wavelength band and produces light with a wavelength band different from the predetermined wavelength band, and a light non-transmission amount change material that has characteristics in which a ratio of a light non-transmission amount to a light entrance amount of excitation light decreases with an increase in the light entrance amount.Type: ApplicationFiled: November 9, 2011Publication date: September 5, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tsuyoshi Kamada
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Patent number: 8519617Abstract: 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: January 29, 2013Date of Patent: August 27, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamaqzaki, Junichiro Sakata, Ryoji Nomura
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Patent number: 8513882Abstract: 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 6, 2012Date of Patent: August 20, 2013Assignee: UDC Ireland LimitedInventor: Masaru Kinoshita
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Patent number: 8502444Abstract: An organic light emitting diode (OLED) display includes a first substrate, a plurality of organic light emitting elements on the first substrate, and a second substrate facing the first substrate and spaced apart from the first substrate. The plurality of organic light emitting elements is interposed between the first substrate and the second substrate. The OLED display includes a plurality of color filters in at least one of an area between the second substrate and the organic light emitting elements, and an area between the first substrate and the organic light emitting elements. The OLED also includes a disparity barrier pattern on at least one of a surface of the second substrate that opposes one surface of the second substrate facing the first substrate, and a surface of the first substrate that opposes one surface of the first substrate facing the second substrate.Type: GrantFiled: September 21, 2011Date of Patent: August 6, 2013Assignee: Samsung Display Co., Ltd.Inventors: Chang-Woong Chu, Sang-Soo Kim
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Patent number: 8487533Abstract: A display apparatus including: a display unit disposed on a substrate; an encapsulation unit facing the display unit, the encapsulation unit including: a metal layer; a complex member; and a reinforcement member formed on an upper surface of the complex member; and a sealing unit disposed between the substrate and the encapsulation unit and apart from the display unit to bond the substrate and the encapsulation unit to the sealing unit.Type: GrantFiled: January 11, 2011Date of Patent: July 16, 2013Assignee: Samsung Display Co., Ltd.Inventors: Choong-Ho Lee, Jung-Min Lee, Kie-Hyun Nam
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Patent number: 8461755Abstract: A light source used for illumination provides favorable heat dissipation properties while suppressing the lowering of the efficiency of light emission. The light source includes a mount substrate, an LED 23 mounted on the mount substrate and a silicon resin mold containing phosphor particles that convert the wavelength of light emitted from the LED 25. The mount substrate includes a metal substrate 23 coated with a ceramic layer 24 containing light-transmissive or highly reflective ceramic particles.Type: GrantFiled: July 29, 2009Date of Patent: June 11, 2013Assignee: Panasonic CorporationInventors: Satoshi Shida, Kenzi Takahashi, Mitsuhito Miyazaki
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Patent number: 8456080Abstract: A display device capable of early finding a sign such as misregistration or width variation of an emission layer formed by a layer transfer method, and a manufacturing method of the same are provided. In an inspection region 150 outside of an effective region 110, inspection pixels Px2 made up of organic light-emitting elements 10R, 10G and 10B are provided, and a distance W2 between the inspection pixels Px2 on both sides of a color targeted for inspection is shorter than a distance W1 between display pixels Px1 on both sides of the color targeted for inspection. Based on a change in a chromaticity or a spectrum shape of EL or PL light emission of the inspection pixel Px2, a sign such as misregistration of a red-light emission layer 15CR, a green-light emission layer 15CG, is found at an early stage.Type: GrantFiled: July 29, 2009Date of Patent: June 4, 2013Assignee: Sony CorporationInventors: Keisuke Matsuo, Kohji Hanawa
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Patent number: 8441185Abstract: As a result of miniaturization of a pixel region associated with an improvement in definition and an increase in a substrate size associated with an increase in area, defects due to precision, bending, and the like of a mask used at the time of evaporation have become issues. A partition including portions with different thicknesses over a pixel electrode (also referred to as a first electrode) in a display region and in the vicinity of a pixel electrode layer is formed, without increasing the number of steps, by using a photomask or a reticle provided with an auxiliary pattern having a light intensity reduction function made of a diffraction grating pattern or a semi-transmissive film.Type: GrantFiled: October 11, 2006Date of Patent: May 14, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideaki Kuwabara, Hideto Ohnuma
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Patent number: 8441188Abstract: An organic light emitting diode display and a method for manufacturing the same are provided. The organic light emitting diode display includes a display substrate having an organic light emitting diode, an encapsulation substrate arranged opposite to the display substrate, and a sealant is applied between the display substrate and the encapsulation substrate to bond and form a hermetically sealed enclosed space therein. A filler may also be provided in some of the enclosed space. Spacers are formed on at least one of the display substrate and the encapsulation substrate to maintain a predetermined gap between the display substrate and the encapsulation substrate. The heights of the spacers are gradually increased from a central portion of the display substrate toward edges of the display substrate.Type: GrantFiled: December 18, 2009Date of Patent: May 14, 2013Assignee: Samsung Display Co., Ltd.Inventor: Kyung-Jun Lee
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Patent number: 8436534Abstract: A surface light-emitting apparatus for emitting light from an entire surface thereof includes a framework having a predetermined shape and an LED disposed in the framework. A reflective layer is applied on an inner surface of the framework. The reflective layer can reflect light emitted from the LED. The apparatus includes a dispersing layer containing a multiplicity of diffuse-reflective particles operable to transmit at least a portion of the light emitted by the LED within the framework and diffuse-reflect at least a portion of the light along contact surfaces contacting each other. The apparatus includes a finishing layer including a light-transmitting resin disposed on the dispersing layer. The light emitted by the LED is dispersed and emitted through the diffuse-reflective particles.Type: GrantFiled: September 25, 2009Date of Patent: May 7, 2013Assignee: Nexon Co., LtdInventor: Young-Gu Park
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Patent number: 8408960Abstract: A method of fabricating an organic light emitting diode using phase separation. The method includes preparing a transparent substrate. A first light path control layer is formed on the transparent substrate. The first light path control layer includes a mixture of a first medium and a second medium having a lower refractive index than the first medium using the phase separation. An anode, an organic emission layer, and a cathode are sequentially stacked on the first light path control layer. In this method, an OLED with improved light extraction efficiency can be fabricated using a simple and inexpensive process.Type: GrantFiled: February 27, 2012Date of Patent: April 2, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Doo Hee Cho, Jeong Ik Lee, Jin Wook Shin, Jong Hee Lee, Hye Yong Chu, Joo Won Lee, Jun Han Han
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Patent number: 8410684Abstract: The invention relates to an electronic display device having an electroluminescent screen and to its manufacturing method. This device includes a substrate (2) coated with a matrix of pixels, each pixel formed by an organic emitting structure (5) intermediate between two electrodes, one (3) near and the other (4) far, relative to the substrate respectively, an electrically insulating resin (7) covering the substrate between the respective near electrodes of the pixels and furthermore extending onto a peripheral edge (3a) of each near electrode. Each pixel incorporates at least one auxiliary electrode (8) having a work function identical or substantially identical to that of the near electrode, and which extends inclinedly on the surface of the resin and facing said edge, from the near electrode towards the far electrode, so as to maximize the emission area of each pixel.Type: GrantFiled: November 19, 2010Date of Patent: April 2, 2013Assignee: Commissariat a l'Energie Atomique et aux Energies AlternativesInventors: David Vaufrey, Thierry Flahaut
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Patent number: 8405303Abstract: An electroluminescent device includes at least first and second radiation emitter devices arranged on a common substrate. Each radiation emitter devise includes a first active layer and a second layer of organic material for generating the radiation, respectively. This device includes isolation means of dielectric material which are at least partially interposed between the first and second active layers to electrically isolate the first layer from the second active layer.Type: GrantFiled: October 16, 2006Date of Patent: March 26, 2013Assignee: STMicroelectronics S.r.l.Inventors: Maria Grazia Maglione, Chiara Leo, Salvatore Leonardi
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Patent number: 8400057Abstract: An organic electroluminescence apparatus comprises: a substrate having a pixel region and sealing regions; an organic electroluminescence device located in the pixel region of the substrate; and a sealing substrate having a pixel region and sealing regions corresponding to the pixel region and the sealing regions of the substrate. The sealing regions of the sealing substrate comprise conductive layers continuously connected to each other. In a method of manufacturing organic electroluminescence apparatus by sealing the substrate and the sealing substrate using a glass frit, manufacturing costs and process time can be greatly reduced.Type: GrantFiled: November 18, 2010Date of Patent: March 19, 2013Assignees: Samsung Display Co., Ltd., EnsilTech CorporationInventors: Oh-Seob Kwon, Dong-Seop Park, Jung-Jun Im, Jae-Sang Ro, Won-Eui Hong, Seog-Young Lee