Polarizer Or Special Ray Transmission (e.g., Filter) Patents (Class 313/112)
  • Patent number: 8278825
    Abstract: The invention relates to a lamp for motor vehicle headlamps, and in particular a high intensity discharge lamp, comprising at least one envelope which is arranged on a base and which is provided with two coatings arranged diametrically opposite one another, wherein the coatings (3) are identical in form and project at least 0.5 millimeters upwards beyond a horizontal plane in which, when the lamp is in the burnt-in position, the reference axis (R) which passes through the center of the base (4) lies.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: October 2, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Andre Michel, Adam Lind, Klaus Schoeller, Hans-Alo Dohmen
  • Patent number: 8278822
    Abstract: A light-emitting element comprising a substrate; a light-emitting layer disposed above the substrate and emitting a primary light; and, a reflective film disposed between the substrate and the light-emitting layer and formed by at least one layer that reflects the primary light, in which the light-emitting element further comprises a light dispersing multilayered film disposed between the substrate and the reflective film and formed by two or more types of light dispersing layers, and the light dispersing multilayered film multiple-disperses a secondary light into plural wavelengths and discharges the secondary light, which is excited by the primary light passing through the reflective film.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 2, 2012
    Assignee: Dowa Electronics Materials Co., Ltd.
    Inventors: Masatoshi Iwata, Norio Tasaki, Yoshiyuki Kobayashi, Tetsuya Matsuura
  • Patent number: 8269411
    Abstract: A display device and a method of manufacturing the same are provided. The display device includes an illuminate unit and a color filter. The illuminate unit has a light-emitting chip and a plurality of quantum dot phosphors for generating a color light which has an optical spectrum including the first blue peak wavelength, a first green peak wavelength, and a first red peak wavelength. The color filter is disposed in the light path of the color light, wherein the color filter has a transmittance spectrum having a second blue peak wavelength, a second green peak wavelength, and a second red peak wavelength. The first blue peak wavelength, the first green peak wavelength, and the first red peak wavelength respectively match the second blue peak wavelength, the second green peak wavelength, and the second red peak wavelength in order to enhance the color performance of the display device.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: September 18, 2012
    Assignee: AU Optronics Corporation
    Inventors: Yi-Cheng Yu, Chih-Lin Wang, Ru-Shi Liu, Chun-Che Lin
  • Patent number: 8269404
    Abstract: An external light blocking film includes a base of transparent resin and an external light blocking pattern having a plurality of external light blocking parts. The external light blocking part is formed by filling a groove with a light absorption material. One end of the external light blocking part is exposed on a surface of the base, and the other end of the external light blocking part is buried in the base. The one end has a shape of a stripe and the other end has a shape of a zigzag curve when viewed from the front. Furthermore, a method of fabricating an external light blocking film and a filter for a display device having an external light blocking film are provided. The external light blocking film has an excellent ability to absorb external light. A complicated pattern of the external light blocking film can be easily formed without additional machining processes, whereby the fabrication time and cost can be saved.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: September 18, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Eun-Young Cho, Nam Heui Lee, In Sung Sohn, Duck Ki Ahn
  • Patent number: 8264145
    Abstract: A display filter includes a base layer having a plurality of structures, the plurality of structures being projected from a first surface of the base layer, an external light shielding layer on the plurality of structures, the external layer being on an upper surface and on a first side surface of the structures, and an electromagnetic wave shielding layer on the plurality of structures, the electromagnetic wave shielding layer being on the upper surface and on a second side surface of the structures, the first and second side surfaces of the structures being opposite each other, and a portion of the external light shielding layer being between the structures and a portion of the electromagnetic wave shielding layer.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: September 11, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinyoung Lee, Sungyong Lee, Jaehyung Kim
  • Patent number: 8242670
    Abstract: Disclosed is an electromagnetic wave blocking member for a display apparatus. The electromagnetic wave blocking member may include a transparent substrate, an electrode layer, and a transparent conductive layer. The electrode layer can include i) a grounding electrode corresponding to at least one frame area of the transparent substrate, and ii) an auxiliary electrode overlying the transparent substrate for connection with the grounding electrode and having a mesh or stripe pattern. The transparent conductive layer can be formed either on the electrode layer or between the transparent substrate and the electrode layer. In one example, the transparent conductive layer can include a series of a metal thin film alternating with a metal oxide thin film a plurality of times.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: August 14, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Eui Soo Kim, Jechoon Ryoo, Jeonghong Oh, Hongik Kim
  • Patent number: 8237356
    Abstract: An organic light emitting display device including: a substrate; a sealing member; an organic light emitting device between the substrate and the sealing member and for displaying images; a selective light absorbing layer on a surface of the sealing member facing the organic light emitting device and including pigments for selectively absorbing light; and a black matrix layer on the selective light absorbing layer corresponding to non-emission areas of the organic light emitting device.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: August 7, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Yoon-Hyeung Cho, Jong-Hyuk Lee, Min-Ho Oh, Byoung-Duk Lee, So-Young Lee, Sun-Young Lee, Won-Jong Kim, Yong-Tak Kim, Jin-Baek Choi
  • Patent number: 8227966
    Abstract: A sheet of the present invention is a sheet which is to be used such that light from a light emitting body impinges on one of surfaces of the sheet and outgoes from the other surface. The other surface of the sheet includes a plurality of minute regions 13, a largest inscribed circle of the minute regions 13 having a diameter from 0.2 ?m to 2 ?m. Each of the plurality of minute regions 13 is adjoined by and surrounded by some other ones of the plurality of minute regions 13. The plurality of minute regions 13 include a plurality of minute regions 13a which are randomly selected from the plurality of minute regions 13 so as to constitute 20% to 80% of the minute regions 13 and a plurality of minute regions 13b which constitute the remaining portion of the minute regions 13. Light transmitted through the plurality of minute regions 13a and light transmitted through the plurality of minute regions 13b have a phase difference of ?.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: July 24, 2012
    Assignee: Panasonic Corporation
    Inventors: Shin-ichi Wakabayashi, Seiji Nishiwaki, Masa-aki Suzuki
  • Patent number: 8217572
    Abstract: It is an object to propose a display device in which reflection of external light on a reflective polarizing plate is prevented and also extraction efficiency of light from a light-emitting layer is improved. If the display device has a light-emitting layer provided over a reflective electrode, a transparent electrode provided over the light-emitting layer, a transparent substrate provided over the transparent electrode, a reflective polarizing plate provided over the transparent substrate, a quarter wave plate provided over the reflective polarizing plate, and a polarizing plate provided over the quarter wave plate, reflection of an outside image can be suppressed, and light emitted in the light-emitting layer can be extracted efficiently.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: July 10, 2012
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yoshiharu Hirakata, Shunpei Yamazaki
  • Patent number: 8203257
    Abstract: The invention relates to a lamp for motor vehicles that at least comprises a first incandescent filament that is intended to produce a light beam having a light/dark cutoff line, the incandescent filament having associated with it for this purpose a shielding cap to restrict the light emitted to a given angular range. The shielding cap (4) has at least one opening that is intended to produce a light beam above the light/dark cutoff line, with at least part of this light beam, which light beam passes through the said opening, not passing through and/or passing through a color filter.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: June 19, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Lukas Kuepper, Albrecht Kraus, Benno Spinger
  • Publication number: 20120146482
    Abstract: A flat display and a method of fabricating the same, in which the fabrication of the flat display is facilitated by employing a plate-to-plate method. The method of fabricating a flat display panel includes the steps of forming an optical bonding resin layer by applying an optical bonding resin on the underside of a transparent film, attaching a filter to the upper surface of the transparent film, and attaching the optical bonding resin layer to the upper surface of a display panel using a plate-to-plate method.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Applicant: SAMSUNG CORNING PRECISION MATERIALS CO., LTD.
    Inventors: Ji Yoon Yeom, Insung Sohn, Euisoo Kim, Seung won Park, Jinhoon Lee, EunYoung Cho
  • Patent number: 8198804
    Abstract: A display device includes a plurality of pixels placed in a matrix form in which each pixel has a light emitting device. The light emitting device includes a light emissive layer; a reflective electrode disposed on a rear surface side of the light emissive layer; a transparent electrode disposed on a front surface side of the light emissive layer; a dividing wall, disposed between the reflective electrode and the light emissive layer at a periphery part of a region where the reflective electrode is formed; a protective layer on a front surface side of the transparent electrode; and a transparent substrate disposed above the protective layer. The protective layer and the transparent substrate are spaced from one another so as to delimit a space where a gas is sealed.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: June 12, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Masaya Adachi
  • Patent number: 8198803
    Abstract: A color-temperature-tunable device comprises a first light emitting diode (LED) chip group comprising at least one first blue LED chip that emits a first light having a first peak wavelength, a second LED chip group comprising at least one second blue LED chip that emits a second light having a second peak wavelength different from the first peak wavelength, and a wavelength converting layer above at least a portion of the first LED chip group and a portion of the second LED chip group. The first LED chip group and the second LED chip group are driven by a first driving current and a second driving current, respectively.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: June 12, 2012
    Assignee: Everlight Electronics Co., Ltd.
    Inventors: Yen Wen Chen, Shih-Chen Shi, Hsi Chuan Hsu
  • Patent number: 8193697
    Abstract: A light-emitting device includes a substrate and a light-emitting element formed on the substrate. The light-emitting element includes a stacked layer structure portion including a reflective electrode, a light-emitting layer on the reflective electrode and a transparent electrode on the light-emitting layer which are stacked over the substrate with the reflective electrode as a bottom layer, the light-emitting layer having a flat surface provided at least on a portion of the light-emitting layer. A bank is disposed in a peripheral area surrounding the flat surface or on a peripheral portion of the flat surface and has a tilt surface tilted with respect to the flat surface. A conductive film is at least provided on the tilt surface and is electrically connected with the transparent electrode, and forms a reflective surface on the tilt surface, and an optical waveguide layer is provided in an area surrounded by the tilt surface.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: June 5, 2012
    Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Masaya Adachi, Kazutaka Tsuji, Hajime Murakami, Etsuko Nishimura
  • Patent number: 8183753
    Abstract: An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, photoluminescent material which converts light from the light source to light of another spectrum, and a selective mirror which reflects light generated by the light source and transmits light generated by the photoluminescent material. The photoluminescent material may be arranged so as to provide a plurality of light sources that emanate light of various colors. In an embodiment, the photoluminescent material is situated in small regions within a transparent material and lenses are used to collimate light emitted from the small regions.
    Type: Grant
    Filed: September 9, 2011
    Date of Patent: May 22, 2012
    Assignee: I2iC Corporation
    Inventors: Udayan Kanade, Gaurav Kulkarni, Karthikk Sridharan, Manas Alekar, Manohar Joshi, Sanat Ganu, Balaji Ganapathy
  • Patent number: 8179030
    Abstract: Disclosed herein are optical interference multilayer coatings employing a high refractive index material comprising a NbTaZr oxide. Such coatings provide enhanced retention of favorable optical and physical properties at high temperatures. Also disclosed herein are lamps comprising a light-transmissive envelope, at least a portion of the surface of the light-transmissive envelope being provided with the optical interference multilayer coating noted above. Such coatings, when used on lamps, may advantageously offer improved energy efficiencies for such lamps.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: May 15, 2012
    Assignee: General Electric Company
    Inventor: Ashfaqul Islam Chowdhury
  • Patent number: 8174179
    Abstract: A top emission type organic light emitting display apparatus that can improve contrast without using a black matrix and can simply the manufacture of a color filter. The top emission type organic light emitting display apparatus includes a substrate, an organic light emitting device arranged on the substrate and including a first electrode layer and a second electrode layer arranged opposite to each other and an organic light emitting layer arranged between the first electrode layer and the second electrode layer, an encapsulating member arranged to encapsulate the organic light emitting device, a polarizing film arranged on the encapsulating member and a color filter arranged between the encapsulating member and the polarizing film, the color filter being arranged directly on the polarizing film.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Min-Chul Suh
  • Patent number: 8169135
    Abstract: A semiconductor lighting device includes a semiconductor light emitter packaged on a reflective substrate to emit a first light and a remote wavelength conversion layer on a back-transferred light path to convert the back-transferred first light into a forward second light. A filter is disposed on a light emitting forward path with a space to the semiconductor light emitter to reflect back at least a portion of the first light. A diffusive member may be positioned outside of the filter to diffuse the forward passing light before it exits from the semiconductor lighting device. As a second aspect of this invention, a solid state lighting device includes a short wavelength semiconductor emitter; a long wavelength semiconductor emitter with wavelength in reddish orange range; a filter on a light emitting forward path to reflect back a portion of short wavelength first light; and a wavelength conversion component on a back-transferred light path.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: May 1, 2012
    Assignee: Lednovation, Inc.
    Inventors: Jinhui Zhai, Israel J. Morejon, Thong Bui
  • Publication number: 20120098414
    Abstract: The present invention aims at providing a structure, manufacturing method, and an intermediate manufactured product enabling the low-cost manufacture of a flat panel display with high fineness. In a flat panel display of the invention, by decentering the opening portions formed by a bank in red and green subpixels to the blue subpixel side, color conversion layers with higher fineness can be formed even when using conventional apparatuses and materials. Moreover, decentering of the opening portions of the bank enables reductions in manufacturing time and manufacturing cost.
    Type: Application
    Filed: June 23, 2009
    Publication date: April 26, 2012
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventor: Hideyo Nakamura
  • Patent number: 8164249
    Abstract: A display device including a first substrate, a second substrate opposite to the first substrate, a fiber layer, a first electrode layer and a second electrode layer is provided. The fiber layer is disposed between the first substrate and the second substrate and includes a plurality of fibers and a display medium disposed therein. The first electrode layer is disposed adjacent to the first substrate, and the second electrode layer is disposed adjacent to the second substrate. The display medium is driven by the change of electric field between the first electrode layer and the second electrode layer to be moved in the fibers for displaying a frame.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: April 24, 2012
    Assignee: Wintek Corporation
    Inventor: Chih-Yuan Wang
  • Publication number: 20120086323
    Abstract: A method is described for manufacturing a display. The method includes providing a display layer for displaying an image having at least a luminosity component, providing a color filter layer comprising a color filter for filtering the image according to a predetermined pattern, and removably attaching the color filter layer to the display layer. Dependent on the outcome of a test on the product provided with the removably attached color filter layer it may be decided to remove the color filter layer.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Applicant: Polymer Vision B.V.
    Inventors: Michel Josephus Marie Somers, Fredericus Johannes Touwslager, Nicolaas Aldegonda Jan Maria van Aerle
  • Patent number: 8143771
    Abstract: A filter for a display device includes a base substrate, a shielding film formed based on a single transparent base layer, and an adhesive layer adhering the shielding film onto the base substrate. The shielding film which realizes diverse shielding functions in a single sheet is adhered onto the base substrate through a single process, which serves to improve productivity, reduce manufacturing cost, restrain the occurrence of Haze and improve visibility.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: March 27, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Dong Keun Shin, Dae Chul Park, Dong Hyun Park, Sang Yoon Oh, Moon Jin Choi, Hwa Yeon Lee
  • Patent number: 8134285
    Abstract: A geometrically shaped photonic crystal structure consisting of alternating layers of thin films is heated to emit light. The structure may include index matching layers or a cavity layer to enhance emissions. The layer thicknesses of the structure may be spatially varied to modify the emission spectrum versus emission angle. The self-focusing structure may be fabricated into a convex electrically heated wire filament light bulb, a concave visible thermophotovoltaic emitter, a concentric directional heat exchanger, an electronic display, or a variety of irregularly shaped remotely read temperature or strain sensors.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 13, 2012
    Inventor: Robert A Marshall
  • Patent number: 8129890
    Abstract: The invention relates to a high-pressure discharge lamp (1) having a burner (2), which is provided with a starting aid device (30, 32) for improving the starting behavior. Said device is configured according to the invention as a grid (30) encompassing the burner in the region of a ceramic (6) holding the burner (2) and having contact with a power feed (24). Said grid (30) acts as a starting aid and as protection against fragments in case of a burner explosion.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: March 6, 2012
    Assignee: Osram AG
    Inventor: Peter Flesch
  • Patent number: 8125142
    Abstract: An OLED display for improving white light emitting efficiency and simplifying a manufacturing process includes a plurality of pixels, each of the pixels having a transistor unit, a color filter unit and an organic light emitting device unit. The transistor unit converts signals from the outside into driving signals for driving an organic light emitting device unit. The organic light emitting device unit is composed of blue, red and green emission layers each having different areas. By passing white light through a color filer, the OLED display can realize full color.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: February 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Un-Cheol Sung, Joo-Hyeon Lee
  • Patent number: 8110968
    Abstract: The present invention relates to an irradiation device having a radiation source and a filter which is arranged in the optical path and has two transparent filter disks which are substantially arranged in parallel with each other and which are held with their surrounding edges in a frame made of a material of good heat conduction, the filter disks and the frame defining a closed cavity which has provided therein a medium which selectively influences the radiation spectrum.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: February 7, 2012
    Assignee: Maxs AG
    Inventors: Werner Braun, Dietmar Loffler
  • Patent number: 8106587
    Abstract: Disclosed is a display apparatus comprising a panel assembly including a plurality of light-emitting cells divided into a light-emitting region and a non light-emitting region surrounding the light-emitting region, as viewed from a viewer, and a display filter disposed on the panel assembly and including an external light-shielding layer, the external light-shielding layer having light-shielding patterns formed on a side of the external light-shielding layer, wherein an area of the light-emitting region occupies about 60% or more of a total area of the plurality of light-emitting cells, and wherein a bias angle formed by an advancing direction of the light-shielding pattern and a longitudinal side of the panel assembly is about 5 degrees or less. The external light-shielding layer is applied to the display apparatus, thereby effectively preventing the moiré phenomenon from being occurred.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: January 31, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Dae Chul Park, Seok Won Kim, Young Min Koo
  • Patent number: 8102104
    Abstract: Provided is a front-side filter which can be easily attached to a cover of a display device, but is difficult to detach from the cover even after long term use and further provided is a PDP device including the same filter. The front-side filter includes a filter base having at least one function among a near-infrared ray shielding function, and a neon light shielding function, and an electromagnetic wave shielding function; and an antireflective layer with an edge pattern, formed on a side of the filter base in such a way that the entire edge portion or a part of the edge portion of the filter base is exposed through the edge pattern to provide a fixing means formed in the edge pattern.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: January 24, 2012
    Assignee: Samsung Corning Precision Materials Co., Ltd.
    Inventors: Dong-keun Sin, Eui-soo Kim, Nam-soo Kim, Jong-won Lee, Young-chae Cho
  • Patent number: 8093812
    Abstract: This invention provides a plasma tube array-type display sub-module that realizes one seamless large screen of a display device and prevents degradation in quality of an image to be displayed on the large screen. The electromagnetic wave shield layer is formed so as to extend beyond an effective display region over, where the plurality of plasma tubes is arranged on one side of the front-side supporting sheet. Moreover, at least one further function layer is formed only over the effective display region. The front-side supporting sheet with display electrodes and the electromagnetic wave shield layer is bent toward the back direction along a side end of the effective display region in order to join plasma tube array-type display sub-modules.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: January 10, 2012
    Assignee: Shinoda Plasma Co., Ltd.
    Inventors: Tetsuya Makino, Koji Shinohe, Hitoshi Hirakawa, Kenji Awamoto
  • Patent number: 8093656
    Abstract: The present invention provides a color filter substrate that can include color filters 12, which are formed in at least a display region and each of which are composed of colored portions, and a light shielding layer on a substrate main body. The light shielding layer can be formed on the approximately entire surface of a color filter non-forming region, in addition to the display region. Further, the colored portions can be formed by an inkjet method, and the color filter substrate can further include a resin member for partitioning pixels for forming the respective colored portions, and the resin member can be formed on the approximately entire surface of the color filter non-forming region, in addition to along the peripheries of the respective colored portions.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: January 10, 2012
    Assignee: Seiko Epson Corporation
    Inventor: Tomomi Kawase
  • Patent number: 8084943
    Abstract: Disclosed is a plasma display panel wherein reduction of reflection and improvement in contrast and sharpness of image light can be attained at the same time. Specifically disclosed is a plasma display panel (10) comprising a front plate (200) and a back plate (100) arranged at a distance from each other, a partition wall (110) for dividing the discharge space formed between the front plate (200) and the back plate (100), a phosphor layer (130) formed within a discharge cell (120) defined by the partition wall (110), electrodes respectively arranged on the front plate (200) and the back plate (100) for producing a discharge within the discharge cell (120), and a front filter (300) arranged on the viewer side of the front plate (200). The front filter (300) has two resin layers (320, 330) having different refractive indexes on the viewer side, and the viewer side surface of the front filter (300) and the interface between the two resin layers (320, 330) respectively have fine recesses and projections.
    Type: Grant
    Filed: November 27, 2008
    Date of Patent: December 27, 2011
    Assignee: Panasonic Corporation
    Inventor: Syunsuke Kimura
  • Publication number: 20110298355
    Abstract: A LED lamp including a cover with first and second transmissive regions that differently affect light emissions (e.g., with respect to diffusion, color, or other characteristics) transmitted therethrough. One or more apertures may be defined in a diffusive cover for a LED lamp to permit flow of air and escape of heat, and also to permit escape of directly emitted or reverse scattered light proximate to a base of the LED lamp. Multiple diffuser segments may be overlapped with intervening apertures.
    Type: Application
    Filed: June 8, 2010
    Publication date: December 8, 2011
    Applicant: CREE LED LIGHTING SOLUTIONS, INC.
    Inventor: Antony Paul van de Ven
  • Patent number: 8067886
    Abstract: The present invention in one embodiment introduces a composite optical destructive layer (35) into the electroluminescent device which reduces the reflection of ambient light from the device. The composite optical destructive layer (35) is advantageously made of materials already found in the manufacturing process of the electroluminescent device (70) and also by manufacturing processes inherent in the manufacture of the device. More particularly, the composite optical destructive layer (35) is made from a variant of a parent material used to form one of the electrodes (12) of the electroluminescent device. The variant material differs from the parent material in that the variant material is oxygen deficient. This oxygen deficiency in the variant material causes the variant material to have a change in refractive index from that of the parent material.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: November 29, 2011
    Assignee: Agency for Science, Technology and Research
    Inventors: Furong Zhu, Kian Soo Ong, Xiaotao Hao
  • Patent number: 8058783
    Abstract: An organic light emitting diode (OLED) display device is disclosed. In one embodiment, the OLED device includes 1) an organic light emitting element configured to emit light, 2) a cholesteric liquid crystal (CLC) layer formed over the organic light emitting element and configured to selectively transmit or reflect circularly polarized light and 3) a translucent metal layer formed on the CLC layer and configured to partially transmit and partially reflect incoming light. According to at least one embodiment, the OLED can suppress reflection of external light while minimizing loss of light generated from the organic emission layer.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: November 15, 2011
    Assignee: 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
  • Patent number: 8058804
    Abstract: A display panel includes a plurality of light guides which emit received light, and a plurality of external light blocking members which are disposed between exit surfaces of the plurality of light guides, and block light from the outside. Accordingly, the bright room contrast of the PDP is enhanced.
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: November 15, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-il Yoon, Jeong-ho Nho, Sung-hwan Lim, Wook-jae Jeon, Dae-hee Lee
  • Publication number: 20110273864
    Abstract: A method for manufacturing green-emitting phosphor particles including the steps of producing a powder containing europium and strontium from a solution containing a europium compound and a strontium compound, mixing the resulting powder and a powdered gallium compound, and performing firing.
    Type: Application
    Filed: May 3, 2011
    Publication date: November 10, 2011
    Applicant: Sony Corporation
    Inventors: Takamasa Izawa, Tsuneo Kusunoki, Takahiro Igarashi
  • Patent number: 8053961
    Abstract: The present invention is related to a color-mixture display unit and an image display apparatus using the same, wherein the image display apparatus includes at least one color-mixture pixel which is pre-disposed at plates of a light box so that a pattern is formed. Each of the color-mixture pixels is equipped with a red filter, a green filter and a blue filter, or equipped with a black filter or equipped with a transparent filter. At least one color-mixture LED is disposed within the light box and provides a backlight for the color-mixture pixel. In this regard, the color-mixture LEDs are controlled by an image controller and provide various color light beams with the color-mixture pixels. In addition, arrangement of each color filter within the color-mixture pixel is utilized so that color-mixture effect of dynamic image is shown.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: November 8, 2011
    Assignee: Harvatek Corporation
    Inventors: Bily Wang, Hui-Chung Lin
  • Patent number: 8053963
    Abstract: A display device according to one embodiment of the invention includes a display panel for displaying an image and an optical filter attached to the display panel. The optical filter includes an external light anti-reflection layer, a color compensation layer, an external light shielding layer, and an electromagnetic interference (EMI) shielding layer. The external light shielding layer includes a barrier rib unit including black photoresist at a gap between the EMI shielding layer and the external light anti-reflection layer or the color compensation layer, for partitioning the gap.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: November 8, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-Hyung Kim, Sung-Yong Lee, Jin-Young Lee
  • Patent number: 8054419
    Abstract: A display device and a display panel and a color filter thereof are provided. The color filter includes a transparent substrate, at least a red filter film, at least a green filter film, at least a plurality of blue filter film and at least a white filter film. The red filter films, the green filter films, the blue filter films and the white filter films are disposed on the transparent substrate. The blue filter films have a first largest transmittance when a light with first wavelength transmits it. The green filter films have a second largest transmittance when a light with second wavelength transmits it. The white filter films have a third largest transmittance when a light with third wavelength transmits it. The third largest transmittance is larger than the first largest transmittance and the second largest transmittance. The third wavelength is between the first wavelength and the second wavelength.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: November 8, 2011
    Assignee: AU Optronics Corp.
    Inventors: Yun-I Liu, Sheng-Wen Cheng
  • Patent number: 8053962
    Abstract: A fluorescent lamp having a protective polymeric sleeve to provide impact resistance and contain fragments if the lamp shatters. A UV-blocking layer is coated on the outside of the glass envelope of the lamp or on the inside of the sleeve to help protect the polymeric sleeve from UV degradation. The UV-blocking layer includes a UV-blocking component of Al2O3 or ZnO or SiO2 or TiO2 or mixtures thereof.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: November 8, 2011
    Assignee: General Electric Company
    Inventors: James Michael Kostka, Jon B. Jansma
  • Patent number: 8044589
    Abstract: A plasma display apparatus may include an external light shielding sheet attached to a front of a panel to absorb and shield externally incident light. Accordingly, a black image can be implemented close to an original color and bright and dark room contrast can be improved. Furthermore, thickness of the external light shielding sheet and height of a pattern unit have a given ratio in order to properly secure an aperture ratio of the external light shielding sheet. Accordingly, light emitted into the panel can transmit toward a user side.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: October 25, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yu Park, Tae Deok Seo, Jun Hwan Ju
  • Patent number: 8040062
    Abstract: Provided is an electroconductive laminate having a substrate and an electroconductive film formed on the substrate, wherein the electroconductive film has a multilayer structure having an oxide layer and a metal layer alternately laminated from the substrate side in a total layer number of (2n+1) (wherein n is an integer of at least 1); the oxide layer predominantly contains zinc oxide and titanium oxide having a refractive index of at least 2.3; the oxide layer has an atomic ratio of titanium to a total amount of titanium and zinc of 15-50 atomic %; and the metal layer predominantly contains silver or a silver alloy. Also provided is a process for producing the electroconductive laminate.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: October 18, 2011
    Assignee: Asahi Glass Company, Limited
    Inventors: Tamotsu Morimoto, Hideaki Miyazawa, Masahiro Fusen, Koichi Kanda, Susumu Nakagama
  • Patent number: 8040027
    Abstract: When the coordinates of multiple primaries are set within specific ranges in a chromaticity diagram (e.g. the CIE 1931 chromaticity diagram), the proportion of the contrast ratio of one primary to the contrast ratio of the other primary should conform to some requirements to achieve the white balance of dark-state, so as to effectively display the natural color and mitigate the color shift of low-luminance images.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 18, 2011
    Assignee: Au Optronics Corp.
    Inventors: Chih-Cheng Chan, Guo-Feng Uei
  • Patent number: 8040028
    Abstract: An apparatus for providing a photoluminescent light source is disclosed. In one embodiment, the apparatus comprises a light source that emanates light of a particular spectrum, photoluminescent material which converts light from the light source to light of another spectrum, and a selective mirror which reflects light generated by the light source and transmits light generated by the photoluminescent material. The photoluminescent material may be arranged so as to provide a plurality of light sources that emanate light of various colors.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: October 18, 2011
    Assignee: I2iC Corporation
    Inventors: Udayan Kanade, Gaurav Kulkarni, Karthikk Sridharan, Manas Alekar, Manohar D. Joshi, Sanat D. Ganu, Balaji Ganapathy
  • Publication number: 20110248623
    Abstract: A light emitting device includes a housing member having a recess open upward, a light emitting element arranged in the recess and having a light emitting layer of a semiconductor, and a wavelength converting member arranged in the recess and capable of absorbing a part of light emission from the light emitting element and emitting light of different wavelength. The light emitting device is capable of mixing the light emission from the light emitting element and the light emission from the wavelength converting member to emit light from the opening of the recess. A light scattering surface for scattering light emission from the light emitting element and wavelength converting member is formed on at least part of the side surface of the recess. The light emitting element and the wavelength converting member are spaced apart from the side and bottom surfaces of the recess, and the side surfaces of the light emitting element are exposed without being covered with the wavelength converting member.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 13, 2011
    Applicant: Nichia Corporation
    Inventor: Masatsugu ICHIKAWA
  • Patent number: 8035285
    Abstract: Disclosed herein are optical interference multilayer coatings having region provided by a physical vapor deposition process and region provided by a chemical vapor deposition process. Also disclosed herein are methods of making such coatings, as well as lamps comprising a light-transmissive envelope, at least a portion of the surface of the light-transmissive envelope being provided with the optical interference multilayer coating noted above. Such coatings, when used on lamps, may advantageously offer improved energy efficiencies for such lamps.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: October 11, 2011
    Assignee: General Electric Company
    Inventors: Zhibo Zhao, Tianji Zhao, Rajasingh Schwartz Israel, Jiawei Li
  • Publication number: 20110234950
    Abstract: A color filter including a red (R) pixel, a green (G) pixel and a blue (B) pixel, wherein at least one of the red (R) pixel, the green (G) pixel and the blue (B) pixel includes one or more kinds of dyes and one or more kinds of pigments and wherein areas of the red (R) pixel, the green (G) pixel and the blue (B) pixel are not the same.
    Type: Application
    Filed: March 21, 2011
    Publication date: September 29, 2011
    Applicant: FUJIFILM CORPORATION
    Inventors: Naoyoshi YAMADA, Ryuji SANETO, Junichi ITO, Shigekazu SUZUKI
  • Publication number: 20110234079
    Abstract: An organic electroluminescent device is disclosed. The organic electroluminescent device includes a window, a polarizer placed below the window, resin placed between the window and the polarizer, and having a refractive index similar to that of the window and the polarizer, and a self-emissive layer placed below the polarizer. The polarizer includes a polarization layer for polarizing light incident from the outside, a first wave plate for retarding the phase of the polarized incident light, and a second wave plate for retarding the phase of the incident light having passed through the first wave plate.
    Type: Application
    Filed: February 22, 2011
    Publication date: September 29, 2011
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Sang Yong EOM, Dong Sub KIM, Hoon Do HEO
  • Patent number: 8026653
    Abstract: A display device provided with a screen, comprising: an optical filter having a blind sheet that comprises a plurality of semitranslucent layers having translucence arranged side-by-side extending in a horizontal direction and having a predetermined thickness in a vertical direction, and a plurality of transparent layers which are disposed between the semitranslucent layers and which are of a higher translucency than that of the semitranslucent layers and of a greater thickness than the thickness of the semitranslucent layers; and an adhesive member for sticking the optical filter to the screen, wherein the ratio of the transmittance of a limit angle of the screen with respect to the transmittance of the optical filter at the center of the screen is at least 0.10 and not more than 0.50.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: September 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Toshiharu Oishi, Minoru Higuchi, Takahide Fujimoto, Akihiko Horita, Ryusuke Fukushima, Eishi Mizobata
  • Patent number: 8013514
    Abstract: The invention is directed to an organic electroluminescent (EL) display device having an improved light extracting efficiency due to a photonic crystal layer formed proximate one side of a stack. Among other elements, the stack may include a first electrode formed on a substrate, an organic light emitting layer formed above the first electrode, and a second electrode formed above the organic light emitting layer. Additionally, the photonic crystal layer may be configured to correspond to a wavelength of colored light. An organic EL display device having an improved light extracting efficiency may be manufactured using a thermal transfer donor film to adhere the photonic crystal layer to the stack.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: September 6, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-Woo Park, Ho-Kyoon Chung, Jang-Hyuk Kwon, Mu-Hyun Kim, Seung-Yong Song, Young-Rag Do, Yoon-Chang Kim, Tae-Min Kang, Seong-Taek Lee