Multicolor Organic Light-emitting Device (oled) (epo) Patents (Class 257/E51.022)
  • Patent number: 8664016
    Abstract: Provided are an organic light emitting diode and a method of manufacturing the same. The organic light emitting diode adjusts an optical resonance thickness and prevents spectrum distortions without use of an auxiliary layer. The organic light emitting diode includes a first electrode that is optically reflective; a second electrode that is optically transmissible and faces the first electrode; an organic emission layer interposed between the first electrode and the second electrode, the organic emission layer including: a first emission layer including a mixed layer that contains a host material and a dopant material, and a second emission layer comprising only the host material; and a carrier injection transport layer interposed between the organic emission layer and the first electrode or between the organic emission layer and the second electrode.
    Type: Grant
    Filed: January 13, 2010
    Date of Patent: March 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Seung Chun, Mi-Kyung Kim, Dong-Heon Kim, Jung-Ha Son, Jae-Hyun Kwak, Kyung-Hoon Choi, Mie-Hwan Park, Young-Ho Park, Young-Suck Choi, Tae-Shick Kim, Choon-Woo Im, Kwan-Hee Lee
  • Patent number: 8659036
    Abstract: A first device is provided. The first device includes an anode, a cathode and an emissive layer disposed between the anode and the cathode. The emissive layer includes a first organic emitting material having a first peak wavelength and a second organic emitting material having a second peak wavelength. The emissive layer has a homogenous composition. The second peak wavelength is between 0 and 40 nm greater than the first peak wavelength.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 25, 2014
    Assignee: Universal Display Corporation
    Inventors: Vadim Adamovich, Hitoshi Yamamoto, Michael S. Weaver
  • Patent number: 8658546
    Abstract: A solution composition for forming an oxide thin film may include a first compound including zinc, a second compound including indium, and a third compound including magnesium or hafnium, and an electronic device may include an oxide semiconductor including zinc, indium, and magnesium. The zinc and hafnium may be included at an atomic ratio of about 1:0.01 to about 1:1.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: February 25, 2014
    Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation
    Inventors: Jong-Baek Seon, Hyun-Jae Kim, Sang-Yoon Lee, Myung-Kwan Ryu, Hyun-Soo Shin, Kyung-Bae Park, Woong-Hee Jeong, Gun-hee Kim, Byung-Du Ahn
  • Patent number: 8648335
    Abstract: An organic light emitting diode display includes: a substrate; a first electrode positioned on the substrate; an organic layer positioned on the first electrode; a transflective layer positioned on the organic layer; an organic emission layer positioned on the transflective layer; and a second electrode positioned on the organic emission layer.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: February 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Seong Jeong, Soon-Ryong Park
  • Patent number: 8642379
    Abstract: A method of making a top-gate organic thin film transistor, comprising forming source and drain contacts on a substrate; oxidizing portions of the source and drain contacts; depositing an organic semiconductor layer to form a bridge between the oxidized portions of the source and drain contacts; depositing a gate insulating layer over the organic semiconductor layer; and forming a gate electrode over the gate insulating layer.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: February 4, 2014
    Assignees: Cambridge Display Technology Limited, Panasonic Corporation
    Inventors: Sadayoshi Hotta, Jeremy Henley Burroughes, Gregory Lewis Whiting
  • Patent number: 8637858
    Abstract: Organic electroluminescent devices and components containing the organic electroluminescent devices are provided herein. The organic electroluminescent devices include a substrate, a first light emitting unit, a second light emitting unit, a first electrode, and a second electrode. The light emitting units are positioned between the first and second electrode. The light emitting units have light emitting regions containing various emitter materials.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: January 28, 2014
    Assignee: Novaled AG
    Inventors: Qiang Huang, Ulrich Denker, Gufeng He
  • Patent number: 8633574
    Abstract: Organic electronic packages having sealed edges. More specifically, packages having organic electronic devices are provided. A number of sealing mechanisms are provided to hermetically seal the edges of the package to completely protect the organic electronic device from external elements. A sealant may be implemented to completely surround the organic electronic device. Alternatively, edge wraps may be provided to completely surround the organic electronic device.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 21, 2014
    Assignee: General Electric Company
    Inventors: Marc Schaepkens, Anil R. Duggal, Christian Maria Anton Heller
  • Patent number: 8633477
    Abstract: Disclosed herein is an organic light-emitting diode three-dimensional image display device which comprises a first substrate, a cathode formed on the first substrate, an electron injection layer formed on the cathode, an electron transfer layer formed on the electron injection layer, an emission layer formed on the electron transfer layer, a hole transfer layer formed on the emission layer, a hole injection layer formed on the hole transfer layer, an anode formed on the hole injection layer, a wire grid polarizer formed on the anode and composed of a metal thin film pattern formed at a first angle and a method thin film pattern formed at a second angle perpendicular to the first angle, which are alternately arranged, and a second substrate arranged on the wire grid polarizer.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: January 21, 2014
    Assignee: Pavoninekorea Inc.
    Inventors: Sung-Jung Lee, Min-Jung Kim, Kyo-Hyeon Lee
  • Patent number: 8629614
    Abstract: An object of this invention is to provide a top-emission type organic EL display in which filling defects of a resin filler material are alleviated during bonding of an organic EL emission panel and a color conversion filter panel with the resin filler material, as well as to provide a method for manufacturing such an organic EL display. An organic EL display of this invention is characterized in having stripe-shaped barrier walls for inkjet application placed on a color conversion filter panel, and a filler material guide wall placed between the length-direction end portions of the barrier walls for inkjet application and a peripheral seal member.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: January 14, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hideyo Nakamura, Kohichi Hashimoto
  • Patent number: 8624230
    Abstract: Disclosed is an organic light emitting diode (OLED) device, which includes: an organic light emitting diode including a first electrode, a second electrode, and an emission layer interposed between the first electrode and the second electrode; a base substrate supporting the organic light emitting diode; and a sealing member disposed on the base substrate while covering the organic light emitting diode. Herein, the sealing member includes a fluorinated epoxy sealing material including a fluorinated epoxy resin.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: January 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sa-Bang Um, Soon-Ryong Park, Jae-Yong Kim, Woo-Suk Jung, Duk-Jin Lee
  • Patent number: 8624275
    Abstract: A pixel in the panel includes sub-pixels 100a, 100b, and 100c. Non-light-emitting cells 100d and 100e are provided between the pixel and adjacent pixels on both sides thereof, respectively. The organic light-emitting layer of sub-pixel 100a and non-light-emitting cell 100d are separated by bank 105a. Similarly, the organic light-emitting layer of sub-pixel 100c and non-light-emitting cell 100e are separated by bank 105d; the organic light-emitting layers of sub-pixels 100a and 100b are separated by bank 105b; and the organic light-emitting layers of sub-pixels 100b and 100c are separated by bank 105c. Inclination angle ?aa of sidewall 105aa of bank 105a adjacent to sib-pixel 100a and inclination angle ?dc of sidewall 105dc of bank 105d adjacent to sib-pixel 100c are larger than other inclination angles ?ba, ?bb, ?cb, and ?cc.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: January 7, 2014
    Assignee: Panasonic Corporation
    Inventor: Hideaki Matsushima
  • Patent number: 8624274
    Abstract: A method for forming a pixel of an LED light source is provided. The method includes: forming a first layer on a first substrate; forming a second layer and a first light-emitting active layer on the first layer; forming a first intermediate layer on the second layer; forming a third layer on a second substrate; forming a fourth layer and a second light-emitting active layer on the third layer; placing the third layer, the fourth layer, and the second light-emitting active layer on the first intermediate layer, wherein the first light-emitting active layer and the second light-emitting active layer emit different colors of light. A method for forming a plurality of light-emitting diode pixels arranged in a two-dimensional array is also provided.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: January 7, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Han-Tsung Hsueh, Hsi-Hsuan Yen, Wen-Yung Yeh, Mu-Tao Chu
  • Patent number: 8614441
    Abstract: Disclosed is a method for forming banks during the fabrication of electronic devices incorporating an organic semiconductor material that includes preparing an aqueous coating composition having at least a water-soluble polymer, a UV curing agent and a water-soluble fluorine compound. This coating composition is applied to a substrate, exposed using UV radiation and then developed using an aqueous developing composition to form the bank pattern. Because the coating composition can be developed using an aqueous composition rather than an organic solvent or solvent system, the method tends to preserve the integrity of other organic structures present on the substrate. Further, the incorporation of the fluorine compound in the aqueous solution provides a degree of control over the contact angles exhibited on the surface of the bank pattern and thereby can avoid or reduce subsequent surface treatments.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 24, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bon Won Koo, Joon Yong Park, Jung Seok Hahn, Joo Young Kim, Kook Min Han, Sang Yoon Lee
  • Patent number: 8610116
    Abstract: An electroluminescent organic semiconductor element includes a substrate and a first electrode arranged on the substrate. The semiconductor element additionally contains a second electrode and at least one organic layer, which is arranged between the first electrode and the second electrode. The organic layer is a layer that generates light by recombination of charge carriers. At least one of the first and the second electrode contains a highly conductive organic sublayer.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: December 17, 2013
    Assignee: OSRAM Opto Semiconductors GmbH
    Inventors: Markus Klein, Tilman Schlenker
  • Patent number: 8610149
    Abstract: An organic light emitting diode display is disclosed. The display includes: a substrate; a first electrode positioned on the substrate; an organic emission layer positioned on the first electrode; a second electrode positioned on the organic emission layer; and a semi-transmissive layer positioned between the substrate and the first electrode and having a plurality of refractive layers having different refractive indices.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Seong Jeong, Sung-Soo Koh, Tae-Gon Kim, Seung-Yeon Cho, Chul-Woo Jeong, Jae-Yong Kim, Chi-Wook An, Moo-Soon Ko, Ok-Byoung Kim
  • Patent number: 8610122
    Abstract: A display unit with which lowering of long-term reliability of a transistor is decreased is provided. The display unit includes a display section having a plurality of organic EL devices with light emitting color different from each other and a plurality of pixel circuits that are singly provided for every said organic EL device for every pixel. The pixel circuit has a first transistor for writing a video signal, a second transistor for driving the organic EL device based on the video signal written by the first transistor, and a retentive capacity, and out of the first transistor and the second transistor, a third transistor provided correspondingly to a second organic EL device adjacent to a first organic EL device is arranged farther from the first organic EL device than a first retentive capacity provided correspondingly to the second organic EL device out of the retentive capacity.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: December 17, 2013
    Assignee: Sony Corporation
    Inventors: Takayuki Taneda, Tetsuro Yamamoto, Katsuhide Uchino
  • Patent number: 8604495
    Abstract: A non-light-emitting cell 100c is provided between pixels 100a and 100b. Ink for forming an organic light-emitting layer is dripped substantially simultaneously into sub-pixels 100a1, 100a2, and 100a3 in the pixel 100a and a sub-pixel 100b1 in the pixel 100b. On the other hand, such ink is not dripped into the non-light-emitting cell 100c since the organic light-emitting layer is not formed in the non-light-emitting cell 100c. In a bank 105d, an inclination angle ?d3 of a wall 105d3 facing the sub-pixel 100a3 is larger than an inclination angle ?dc of a wall 105dc facing the non-light-emitting cell 100c. Similarly, in a bank 105e, an inclination angle ?e1 of a wall 105e1 facing the sub-pixel 100b1 is larger than an inclination angle ?ec of a wall 105ec facing the non-light-emitting cell 100c.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventor: Hideaki Matsushima
  • Patent number: 8604494
    Abstract: A non-light-emitting cell 100c is provided between pixels 100a and 100b. In formation of the pixel 100a, ink for forming an organic light-emitting layer is dripped into sub-pixels 100a1, 100a2, 100a3 in this order. This also applies to the pixel 100b. However, such ink is not dripped into the non-light-emitting cell 100c since the organic light-emitting layer is not formed in the non-light-emitting cell 100c. Regarding banks 105c and 105d defining the sub-pixel 100a3 of the pixel 100a, an inclination angle ?d3 of a wall 105d3 of the bank 105d is larger than an inclination angle ?c3 of a wall 105c3 of the bank 105c. Meanwhile, regarding banks 105e and 105f defining the sub-pixel 100b1, an inclination angle ?e1 of a wall 105e1 of the bank 105e is equivalent to an inclination angle ?f1 of a wall 105f1 of the bank 105f.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventor: Hideaki Matsushima
  • Patent number: 8604492
    Abstract: A non-light-emitting cell 100c is provided between pixels 100a and 100b. Ink for forming an organic light-emitting layer is dripped substantially simultaneously into sub-pixels 100a1, 100a2, and 100a3 in the pixel 100a and a sub-pixel 100b1 in the pixel 100b. On the other hand, such ink is not dripped into the non-light-emitting cell 100c since the organic light-emitting layer is not formed in the non-light-emitting cell 100c. Regarding two banks 105c and 105d defining the sub-pixel 100a3, an inclination angle ?d3 of a wall 105d3 of the bank 105d is larger than an inclination angle ?c3 of a wall 105c3 of the bank 105c. Similarly, regarding banks 105e and 105f defining the sub-pixel 100b1, an inclination angle ?e1 of a wall 105e1 of the bank 105e is larger than an inclination angle ?f1 of a wall 105f1 of the bank 105f.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventor: Hideaki Matsushima
  • Patent number: 8604493
    Abstract: A non-light-emitting cell 100c is provided between pixels 100a and 100b. In formation of the light-emitting cell 100a, ink for forming an organic light-emitting layer is dripped into sub-pixels 100a1, 100a2, 100a3 in this order. This also applies to the light-emitting cell 100b. However, such ink is not dripped into the non-light-emitting cell 100c since the organic light-emitting layer is not formed in the non-light-emitting cell 100c. Regarding a bank 105d between the sub-pixel 100a3 and the non-light-emitting cell 100c, an inclination angle ?d3 of a wall 105d3 is larger than an inclination angle ?dc of a wall 105dc. On the other hand, regarding a bank 105e between the sub-pixel 100b1 and the non-light-emitting cell 100c, an inclination angle ?e1 of a wall 105e1 is equivalent to an inclination angle ?ec of a wall 105ec.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: December 10, 2013
    Assignee: Panasonic Corporation
    Inventor: Hideaki Matsushima
  • Publication number: 20130320367
    Abstract: An organic light emitting display device including a plurality of sub pixels, each of the sub pixels including an emissive layer between a pixel electrode and a counter electrode; and a partition wall defining regions of the plurality of sub pixels, wherein the partition wall is not located between at least one pair of adjacent sub pixels of the plurality of sub pixels.
    Type: Application
    Filed: August 29, 2012
    Publication date: December 5, 2013
    Inventor: Sang-Min Hong
  • Patent number: 8598574
    Abstract: To provide a light-emitting device having a top-emission structure with low power consumption. A convex structure body is formed over a substrate to be provided with an organic EL element, and then an upper electrode layer is formed. Thus, the upper electrode layer has a shape following the convex shape. In addition, a conductive layer is formed over a substrate sealing an organic EL layer. Then, by sealing a surface where the upper electrode layer is formed and a surface where the conductive layer is formed are sealed to face each other, at least part of the electrode layer overlapped with the convex structure body is in contact with the conductive layer, so that the resistivity of the upper electrode layer is significantly reduced. Thus, power consumption of a light-emitting element can be reduced.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: December 3, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Takuya Tsurume
  • Patent number: 8592881
    Abstract: An organic light emitting element includes an organic light emitting diode formed on a substrate, coupled to a transistor including a gate, a source and a drain and including a first electrode, an organic thin film layer and a second electrode; a photo diode formed on the substrate and having a semiconductor layer including a high-concentration P doping region, a low-concentration P doping region, an intrinsic region and a high-concentration N doping region; and a controller that controls luminance of light emitted from the organic light emitting diode, to a constant level by controlling a voltage applied to the first electrode and the second electrode according to the voltage outputted from the photo diode.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: November 26, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun-gyu Lee, Byoung-deog Choi, Hye-hyang Park, Ki-ju Im
  • Patent number: 8586970
    Abstract: 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: Grant
    Filed: November 17, 2010
    Date of Patent: November 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Ho Oh, Yoon-Hyeong Cho, Byoung-Duk Lee, So-Young Lee, Sun-Young Lee, Jong-Hyuk Lee
  • Patent number: 8587000
    Abstract: A light-emitting element includes a cathode; an anode; and a light-emitting section which is disposed between the cathode and the anode and which includes a first light-emitting layer, second light-emitting layer, and third light-emitting layer each containing a corresponding one of luminescent materials emitting light of different colors and host materials supporting the luminescent materials. The first, second, and third light-emitting layers commonly contain a first host material that is one of the host materials. The first light-emitting layer emits light of a first color having a longer wavelength as compared to light emitted from the second and third light-emitting layers and contains a second host material which is one of the host materials and which is different from the first host material. The second host material is superior in enhancing the luminescence of the first light-emitting layer to the first host material.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: November 19, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Hidetoshi Yamamoto, Tetsuji Fujita
  • Patent number: 8581273
    Abstract: An organic EL device includes: a bank provided to surround a first anode (second anode) on a substrate; a red emission layer (green emission layer) provided at an opening portion of the bank; a third anode having the same polarity as that of the first anode provided on the bank; a blue emission layer provided at an entire portion of the substrate including the third anode; and a cathode having a different polarity from those of the first anode and the third anode provided to cover the blue emission layer.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: November 12, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Shuichi Takei
  • Patent number: 8581270
    Abstract: An organic light-emitting display apparatus is disclosed.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 12, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Woo Park, Myung-Jong Jung, Tae-Min Kang, Sang-Woo Pyo, Beom-Joon Kim, Hyo-Yeon Kim
  • Patent number: 8581265
    Abstract: It is an object to provide a flexible light-emitting device with long lifetime in a simple way and to provide an inexpensive electronic device with long lifetime using the flexible light-emitting device. A flexible light-emitting device is provided, which includes a substrate having flexibility and a light-transmitting property with respect to visible light; a first adhesive layer over the substrate; an insulating film containing nitrogen and silicon over the first adhesive layer; a light-emitting element including a first electrode, a second electrode facing the first electrode, and an EL layer between the first electrode and the second electrode; a second adhesive layer over the second electrode; and a metal substrate over the second adhesive layer, wherein the thickness of the metal substrate is 10 ?m to 200 ?m inclusive. Further, an electronic device using the flexible light-emitting device is provided.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 12, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kaoru Hatano, Satoshi Seo, Takaaki Nagata, Tatsuya Okano
  • Patent number: 8575603
    Abstract: A pixel structure of an electroluminescent display panel includes a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a fourth sub-pixel region having different cavity lengths. The first sub-pixel region and the second sub-pixel region share a first organic light-emitting layer, which can generate a first primary color light in the first sub-pixel region, and a second primary color light in the second sub-pixel region. The third sub-pixel region and the fourth sub-pixel region share a second organic light-emitting layer, which can generate a third primary color light in the third sub-pixel region, and a fourth primary color light in the fourth sub-pixel region. The first primary color light, the second primary color light, the third primary color light and the fourth primary color light have different spectra of wavelength.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: November 5, 2013
    Assignee: AU Optronics Corp.
    Inventors: Miao-Tsai Chu, Meng-Ting Lee
  • Patent number: 8569743
    Abstract: The invention relates to a light-emitting device, in particular a light-emitting diode, with an arrangement of layers on a substrate, wherein the arrangement of layers has an anode contact and a cathode contact which are in electrical contact with a light-emitting layer stack arranged between the anode contact and the cathode contact which, on its part, comprises a polymer layer consisting of a polymer material and a low-molecular layer of vacuum-deposited small molecules of an organic material, and wherein the small molecules of the low-molecular layer are formed as donor molecules with an oxidation potential versus Fc/Fc+ (ferrocene/ferrocenium redox couple) of maximum approx. ?1.5 V, if the low-molecular layer is arranged adjacent to the cathode contact, and as acceptor molecules with a reduction potential versus Fc/Fc+ (ferrocene/ferrocenium redox couple) of minimum approx. ?0.3 V if the low-molecular layer is arranged adjacent to the anode contact.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: October 29, 2013
    Assignee: Novaled AG
    Inventors: Jan Birnstock, Jan Blochwitz-Nimoth
  • Patent number: 8569793
    Abstract: An organic light-emitting diode with high color rendering is provided, which comprises: a substrate with a first electrode formed thereon; a first light-emitting region disposed over the first electrode, wherein the first light-emitting region comprises at least one layer of a first light-emitting layer, and the first light-emitting layer comprises at least one first dye respectively; a spacer disposed on the first light-emitting region; a second light-emitting region disposed on the organic spacer, wherein the second light-emitting region comprises at least one layer of a second light-emitting layer, and the second light-emitting layer comprises at least one second dye respectively; and a second electrode disposed over the second light-emitting region.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: October 29, 2013
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Yi-Chieh Chou
  • Patent number: 8564015
    Abstract: An organic light-emitting diode with high color rendering is provided, which includes: a substrate; a first electrode disposed over the substrate; a light-emitting region disposed over the first electrode, in which the light-emitting region includes a plurality of light-emitting layers and at least one spacer, the spacer being disposed between any two of the light-emitting layers and each of the light-emitting layers individually including a dye; and a second electrode disposed over the light-emitting region. Accordingly, the organic light-emitting diode according to the present invention can exhibit high color rendering and high illumination efficiency.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: October 22, 2013
    Assignee: National Tsing Hua University
    Inventors: Jwo-Huei Jou, Yi-Chieh Chou
  • Patent number: 8563996
    Abstract: A luminescent light source including a blue light emitting diode (LED) chip, a red LED chip, and a wavelength converting material is provided. The blue LED chip and the red LED chip respectively emit a first light and a second light. A ratio of peak intensity of the second light to peak intensity of the first light ranges from 0.36 to 0.56. The wavelength converting material is disposed around the blue LED chip or the red LED chip and emits a third light. A wavelength of the third light ranges from a wavelength of the first light to a wavelength of the second light.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: October 22, 2013
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chih Ke, Ruei-Teng Lin
  • Patent number: 8558222
    Abstract: An organic light emitting diode display includes: a substrate main body having a plurality of pixel regions, each including an opaque region and a transparent region; and organic light emitting diodes, thin film transistors, and conductive lines that are formed in the opaque region of the substrate main body. The transparent region includes a transparent square space that has an area that is at least 15% of the entire area of the pixel region.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: October 15, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyu-Hwan Hwang, Seok-Gyu Yoon, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Chaun-Gi Choi, Sang-Moo Choi, Keum-Nam Kim, Gun-Shik Kim
  • Patent number: 8536057
    Abstract: A thin film deposition apparatus and a method of manufacturing an organic light emitting device (OLED) using the thin film deposition apparatus.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Choong-Ho Lee, Yoon-Chan Oh, Jung-Min Lee
  • Patent number: 8536569
    Abstract: A first light emitting element 310 and a second light emitting element 320 are serially laminated over a substrate 300. The first light emitting element 310 has a light emitting layer 312 between a first anode 311 and a first cathode 313, and the second light emitting element 320 has a light emitting layer 322 between a second anode 321 and a second cathode 323. Here, the light emitting layer 312 shows a first emission spectrum 330 having peaks both in a blue to blue green wavelength range and in a yellow to orange wavelength range, and the light emitting layer 322 shows a second emission spectrum 340 having peaks both in a blue green to green wavelength range and in an orange to red wavelength range.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: September 17, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Satoshi Seo
  • Patent number: 8530254
    Abstract: A method of manufacturing an organic electroluminescence device includes forming a first organic electroluminescence layer at least on a first lower electrode, forming a first protective layer on the first organic electroluminescence layer, processing the first organic electroluminescence layer and the first protective layer, forming a second organic electroluminescence layer at least on a second lower electrode, forming a second protective layer on the second organic electroluminescence layer, and processing the second organic electroluminescence layer and the second protective layer.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihide Kimura, Tomoyuki Hiroki, Taro Endo, Itaru Takaya, Koichi Ishige, Nobuhiko Sato
  • Patent number: 8519407
    Abstract: An organic light-emitting display includes a substrate including a pixel region and a transistor region; a first transparent electrode and a second transparent electrode formed over the pixel region and the transistor region of the substrate, respectively; a gate electrode formed over the second transparent electrode; a gate insulating film formed over the gate electrode; a semiconductor layer formed over the gate insulating film; a source and drain electrode having an end connected to the semiconductor layer and the other end connected to the first transparent electrode; a pixel defining layer disposed over the source and drain electrode to cover the source and drain electrode and having an opening disposed over the first transparent electrode; a light-blocking layer formed over the pixel defining layer; and an organic light-emitting layer formed over the first transparent electrode.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yong-Woo Park
  • Patent number: 8519406
    Abstract: An organic light emitting display device has high transmittancy to external light. The organic light emitting display device includes a substrate; a first wiring formed on the substrate in a first direction; second and third wirings formed on the substrate in a second direction; a first thin film transistor connected to the first and second wirings; a second thin film transistor connected to the first thin film transistor and the third wiring; and an organic light emitting display panel (OLED) connected to the second thin film transistor, wherein the second and third wirings are formed of graphene.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Gyu Yoon, Kyu-Hwan Hwang, Jae-Heung Ha, Young-Woo Song, Jong-Hyuk Lee, Sung-Chul Kim
  • Patent number: 8519413
    Abstract: An organic light emitting diode display is disclosed. The display includes a substrate, a first electrode placed on the substrate, an organic emissive layer placed on the first electrode, a second electrode placed on the organic emissive layer, and a refractive layer disposed between the substrate and the first electrode. The refractive layer is greater in refractive index than the first electrode.
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hee-Seong Jeong, Sung-Soo Koh, Tae-Gon Kim, Seung-Yeon Cho, Chul-Woo Jeong, Jae-Yong Kim, Chi-Wook An, Moo-Soon Ko, Ok-Byoung Kim
  • Patent number: 8513692
    Abstract: Light-emitting devices, and related components, systems and methods are disclosed.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: August 20, 2013
    Assignee: Luminus Devices, Inc.
    Inventors: Alexei A. Erchak, Elefterios Lidorikis, Chiyan Luo
  • Patent number: 8508124
    Abstract: An organic light-emitting diode (OLED) display includes a substrate and a plurality of sub-pixels formed on the substrate, wherein the substrate includes a display region having formed therein sub-pixels to which colored organic materials are applied, and a non-display region formed at edges of the display region. The non-display region includes an outgassing portion and a cathode contacting portion, and protrusions and recessions having different numbers and unit opening areas are formed in at least one of the outgassing portion and the cathode contacting region. Thus, organic raw materials applied during manufacturing process may be prevented from remaining. Therefore, an increase in contact resistance due to organic raw materials remaining in a cathode contact region may be reduced.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Kyoung-Wook Min
  • Patent number: 8507928
    Abstract: An organic EL device includes a first organic EL element and a second organic EL element on an underlying layer that includes a first drive circuit unit for driving the first organic EL element and a second drive circuit unit for driving the second organic EL element. The organic EL device includes a partition on the underlying layer defining a first region including a first light-emitting layer of the first organic EL element and a second region including a second light-emitting layer of the second organic EL element. The partition defines the first film-forming region such that the first film-forming region includes the first drive circuit unit and the second film-forming region such that the second film-forming region does not include at least part of the second drive circuit unit. The first light-emitting layer is formed by a different method from that used for the second light-emitting layer.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: August 13, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Masahiro Uchida
  • Patent number: 8502207
    Abstract: An organic light emitting diode structure is disclosed. The hole transport layer of the organic light emitting diode structure is used as a first primary color light emitting layer. A second primary color light emitting unit and a third primary color light emitting unit are formed on the first primary color light emitting layer, and a part of the first primary color light emitting layer is exposed. A method for fabricating the organic light emitting diode structure is also disclosed.
    Type: Grant
    Filed: November 18, 2010
    Date of Patent: August 6, 2013
    Assignee: AU Optronics Corporation
    Inventor: Cheng-Hung Lin
  • Patent number: 8502203
    Abstract: Disclosed is a laminated structure, including a substrate, a wettability changing layer on the substrate, the wettability changing layer including a material, a critical surface tension of the material being changed by providing energy thereto, and an electrically conductor layer on the substrate, the electrically conductor layer formed on a region of the wettability changing layer, the region being provided with the energy, wherein the material includes a structural unit including a side chain and a structural unit including no side chain.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: August 6, 2013
    Assignee: Ricoh Company, Ltd.
    Inventors: Takanori Tano, Koei Suzuki, Yusuke Tsuda
  • Patent number: 8502225
    Abstract: An object is to improve reliability of a light-emitting device. A light-emitting device has a driver circuit portion including a transistor for a driver circuit and a pixel portion including a transistor for a pixel over one substrate. The transistor for the driver circuit and the transistor for the pixel are inverted staggered transistors each including an oxide semiconductor layer in contact with part of an oxide insulating layer. In the pixel portion, a color filter layer and a light-emitting element are provided over the oxide insulating layer. In the transistor for the driver circuit, a conductive layer overlapping with a gate electrode layer and the oxide semiconductor layer is provided over the oxide insulating layer. The gate electrode layer, a source electrode layer, and a drain electrode layer are formed using metal conductive films.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: August 6, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masayuki Sakakura, Yoshiaki Oikawa, Kenichi Okazaki, Hotaka Maruyama
  • Patent number: 8497504
    Abstract: A thin film transistor with which oxygen is easily supplied to an oxide semiconductor layer and favorable transistor characteristics are able to be restored and a display unit including the same. The thin film transistor includes, sequentially over a substrate, a gate electrode, a gate insulting film, an oxide semiconductor layer including a channel region, and a channel protective layer covering the channel region A source electrode and a drain electrode are formed on the oxide semiconductor layer located on both sides of the channel protective layer, and at least one of the source electrode and the drain electrode has an aperture to expose the oxide semiconductor layer.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: July 30, 2013
    Assignee: Sony Corporation
    Inventors: Toshiaki Arai, Narihiro Morosawa, Kazuhiko Tokunaga, Hiroshi Sagawa, Kiwamu Miura
  • Patent number: 8497496
    Abstract: A display device includes: a pixel including a plurality of light emitting elements each formed by sequentially stacking a first electrode layer, an organic layer, and a second electrode layer, spaced apart from each other in a first direction orthogonal to the stacking direction thereof, and emitting light emission colors different from each other; and an auxiliary wiring layer electrically connected to the second electrode layer. A plurality of the pixels are aligned in the first direction so as to include a gap which is larger than a gap between the light emitting elements adjacent to each other, and the auxiliary wiring layer is provided between the pixels adjacent to each other.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: July 30, 2013
    Assignee: Sony Corporation
    Inventor: Nobuo Ozawa
  • Patent number: 8492754
    Abstract: An organic light-emitting display panel is provided that improves luminous efficiency and luminescent color by adjusting the difference in film thickness between layers of different luminescent colors, such as intermediate layers, when the intermediate layer and light-emitting layers are formed by a wet method. By varying the film thickness of an interlayer insulation film, which is a lower layer of an organic light-emitting element, the volume of a contact hole is varied by color, thereby adjusting the volume of a concavity in each anode plate. When ink that includes material for the intermediate layer, or like, is sprayed by an inkjet method, the film thickness of the intermediate layer, or like, changes in accordance with the amount of ink filing the concavity. Therefore, by adjusting the difference in volume between concavities of different colors, the difference in film thickness between the intermediate layers, or like, is finely adjusted.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 23, 2013
    Assignee: Panasonic Corporation
    Inventors: Seiji Nishiyama, Tetsuro Kondoh
  • Patent number: 8487313
    Abstract: An emissive device includes a substrate; a switching element disposed on a surface of the substrate; an insulating layer covering the switching element; a contact hole disposed in the insulating layer; a first electrode disposed on a surface of the insulating layer and electrically connected to the switching element via the contact hole in the insulating layer; a second electrode disposed at a side opposite the substrate with respect to the first electrode; a luminescent layer disposed between the first electrode and the second electrode; and a light shield disposed at a side from which light from the luminescent layer emerges and having a portion covering the contact hole when viewed in a direction perpendicular to the substrate.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 16, 2013
    Assignee: Seiko Epson Corporation
    Inventor: Takehiko Kubota