Diffuser Between Light Source And Liquid Crystal Patents (Class 349/64)
  • Patent number: 9784428
    Abstract: Various embodiments relate to a lighting device with an optoelectronic light source, an optical body downstream thereof for distributing the light, and a diffuser downstream of the latter, onto the light entry surface of which the light emitted by the optical body falls and the light exit surface of which represents a light emission surface of the lighting device. To homogenize the luminous intensity on the light exit surface, in addition to distributing the light with the optical body, the diffuser is not provided to be uniformly scattering to such an extent that light falling thereon in a central region is scattered more intensely than light falling thereon in an edge region.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: October 10, 2017
    Assignee: OSRAM GmbH
    Inventors: Krister Bergenek, Florian Boesl, Andreas Dobner, Katrin Kondula, Reiner Windisch, Dennis Sprenger, Meik Weckbecker
  • Patent number: 9746702
    Abstract: A display device includes a display panel, a top chassis partially surrounding a top surface of the display panel and having first and second inserting holes, a bottom chassis configured to accommodate the display panel and having third and fourth inserting holes, and at least one fixing member extending through the third inserting hole, the first inserting hole, the second inserting hole and the fourth inserting hole to thereby couple the bottom chassis and the top chassis to each other.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: August 29, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Cheuljin Park, Hyunchul Bae, Donghyeon Lee, Kwangwook Choi
  • Patent number: 9733415
    Abstract: In an embodiment, a display panel unit includes a reflective polarizing layer, a transparent layer, and a display panel. The polarizing layer transmits a first polarized component of light incident on an incident surface to an exit surface and reflects a second polarized component of the light. The transparent layer transmits the first and second polarized component of the light incident on a second surface to a first surface adhered to the incident surface and transmits the second polarized component reflected by the polarizing layer to be incident on the first surface to the second surface. The panel faces the exit surface, and selectively transmits the light exiting from the exit surface.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 15, 2017
    Assignee: Japan Display Inc.
    Inventor: Michikazu Noguchi
  • Patent number: 9719851
    Abstract: An infra-red assembly for a television, that has a plurality of layers operating for creating an image from pixels formed of illuminated color filters. The plurality of layers including a backlight, a polarization layer adjacent the backlight, a TFT layer over the polarization layer, an LCD layer overlying the TFT layer, and a color filter layer overlying the LCD layer. Wherein at least one of the layers includes an opening, and another of said layers includes an infrared filter that passes infrared and blocks light that is not infra red, and where another of said layers underlying said infrared layer includes an infrared receiver that receives the infrared through said opening and said infrared filter, and where said opening and said filter and said receiver are located in registration with one another, such that infrared passes through the opening and passes through the filter and passes to the receiver.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: August 1, 2017
    Assignee: Vizio Inc
    Inventor: Matthew Blake McRae
  • Patent number: 9709837
    Abstract: An electro-optical devices includes: a first substrate; a second substrate having one surface opposite to the first substrate; a support member configured to hold the first and second substrates with the second substrate located outside the first substrate, and to include a frame portion surrounding the first and second substrates; a first conductive film formed on the other surface of the second substrate; and a conductor layer placed between the frame portion and the first and second substrates, and electrically connected to the first conductive film. The first conductive film is held at a constant potential via the conductor layer.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: July 18, 2017
    Assignee: Japan Display Inc.
    Inventor: Yasunori Onishi
  • Patent number: 9702526
    Abstract: An illumination device has plural LED light sources, a reflection plate that has plural openings facing the respective LED light sources, and plural lenses that faces the respective openings and that guides light emitted from the plural openings in a direction vertical to the openings. The reflection plate is placed between the plural LED light sources and the plural lenses, and converges the light emitted from the plural LED light sources.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 11, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shinji Kadoriku, Ryoma Murase, Masaru Fujita
  • Patent number: 9705106
    Abstract: A flexible organic light emitting display and a method of fabricating the same are disclosed in which flexible organic light emitting display may be realized without a plastic based substrate, and at the same time an ideal WVTR characteristic level for stably driving an organic light emitting element without deterioration may be realized. The flexible organic light emitting display comprises a first ultra-thin film glass substrate that includes aluminum silicide; a thin film transistor (TFT) device arranged on the first ultra-thin film glass substrate; and an organic light emitting element arranged on the TFT element.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: July 11, 2017
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hae Joon Son, Joung Ho Ryu, Sie Hyug Choi
  • Patent number: 9678263
    Abstract: The embodiments of the invention disclose a scanning type backlight module and a display device. Since a laser light source with good collimation is applied, during a display time of a frame, with the modulation of the optical path regulator, the laser emitted from the laser light source performs a progressive scanning for a region corresponding to at least one row of pixel units in a light guide plate or a display panel. Therefore, the problem of dynamic picture ghosting can be solved effectively; moreover, since the progressive scanning for the entire light guide plate can be realized by changing the light propagation path of the laser emitted from the laser light source with the optical path regulator, the number of the laser light sources can be reduced and the production cost can be decreased.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: June 13, 2017
    Assignee: Boe Technology Group Co., Ltd.
    Inventors: Heecheol Kim, Youngsuk Song, Seongyeol Yoo, Seungjin Choi
  • Patent number: 9645288
    Abstract: A film for a display device and a method of manufacturing the film, the film including transparent layers; and scattering layers, the transparent layers and scattering layers being alternately arranged with a predetermined cycle, wherein a plurality of patterns are non-periodically formed in an upper surface or a lower surface of the film.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: May 9, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae Ik Lim, Won Sang Park
  • Patent number: 9632232
    Abstract: The invention discloses a backlight, a backlight module and a display device, belonging to the field of display technology. The backlight includes a plurality of LED lamps, a flexible circuit board for supplying power to the LED lamps and a supporting plate for supporting the flexible circuit board, wherein the flexible circuit board is arranged below the LED lamps, and the supporting plate is arranged below the flexible circuit board and is in a bent shape. In the present invention, by designing the supporting plate to be in a bent shape, it is no longer required to have to employ the existing linear backlight with a single structure, and meanwhile, the contact area between the supporting plate and air is enlarged to improve the heat dissipation effect of the backlight.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: April 25, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE VISION-ELECTRONIC TECHNOLOGY CO., LTD.
    Inventor: Changjia Fu
  • Patent number: 9618679
    Abstract: Embodiments of the present invention disclose a reflective film, a backlight module comprising the reflective film and a display apparatus comprising the backlight module. A row of low-reflection dots are disposed on a side of a surface of the reflective film, and regions of the surface of the reflective film corresponding to the low-reflection dots have smaller reflectivity with respect to the incident light from an LED light strip disposed at a side of the row of the low-reflection dots than other regions of the surface of the reflective film with respect to the incident light from the LED light strip. The regions of the reflective film directly facing the LED are changed into low-reflection regions, in which the reflectivity is reduced. Therefore the alternate bright and dark phenomenon at light incident side is reduced or eliminated and display quality of the display apparatus is further improved.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: April 11, 2017
    Assignees: Hefei BOE Display Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Yaling Kang
  • Patent number: 9617418
    Abstract: A polycarbonate resin composition includes: a polycarbonate resin (A); a tetramethylene glycol derivative (B) represented by general formula (1): HO(C4H8O)m(C3H6O)nH (wherein m and n independently represent an integer of 4 to 60, and m+n represents an integer of 20 to 90); and a phosphite compound (C), an amount of the tetramethylene glycol derivative (B) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A), and an amount of the phosphite compound (C) is 0.005 to 5.0 parts by weight per 100 parts by weight of the polycarbonate resin (A). An optical molded article is obtained by molding the polycarbonate resin composition.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 11, 2017
    Assignee: SUMIKA STYRON POLYCARBONATE LIMITED
    Inventors: Yoichiro Sakaki, Eriko Kida
  • Patent number: 9612477
    Abstract: The present invention discloses a transparent display device comprising a display panel, an array of polarization light splitting sheets provided on the side of the display panel on which no polarizer is provided, and at least one polarization light sources provided at a side of the array and emitting a polarized light polarized along a certain direction towards an inner surface of at least one polarization light splitting sheets in the array. The polarized light polarized in the certain direction, emitted by a corresponding polarization light source and incident onto the inner surface of the polarization light splitting sheet can be reflected to the display panel, and the polarized light polarized in a direction perpendicular to the certain direction, coming from an ambient light and incident onto an outer surface of the polarization light splitting sheet can be transmitted to the display panel.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: April 4, 2017
    Assignee: BOE Technology Group Co., Ltd.
    Inventor: Shang Wang
  • Patent number: 9599855
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes a first substrate. A first reflection layer is disposed under the first substrate. A first polarization layer is disposed on the first substrate. A light source is disposed at a side of the first substrate. A thin film transistor is disposed on the first polarization layer. A pixel electrode is connected to the thin film transistor. The first polarization layer includes a plurality of wire grid polarization patterns.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Il Kim, Yeo Geon Yoon, Hyoung Cheol Lee
  • Patent number: 9568667
    Abstract: A backlight unit includes a light source having an emission region, a wiring board having the light source mounted thereon, a light guide plate having a side surface into which light from the light source enters, and a front surface from which the light exits, a light shielding adhesive tape adhering to the wiring board, and an optical sheet which overlaps with the front surface of the light guide plate. The front surface of the light guide plate includes an effective region serving as a planar light source and a light entering region ranging from the side surface to the effective region. The wiring board and the light-shielding adhesive tape each have a part positioned in the light entering region, and the optical sheet is arranged from the effective region to the light entering region. An end portion of the optical sheet overlaps with the light-shielding tape.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: February 14, 2017
    Assignee: Japan Display Inc.
    Inventors: Munenori Motooka, Nobuyuki Suzuki
  • Patent number: 9551824
    Abstract: A light guide plate has a light exit surface, a back surface opposed to the light exit surface, and a light entrance surface consisting of at least part of a side surface. The light guide plate also has a body portion, and a light exit-side layer formed from an ionizing radiation curable resin. The light exit-side layer includes an optical element portion which defines the light exit surface. The optical element portion includes unit shaped elements arranged in one direction intersecting a light guide direction, each unit shaped element extending linearly in a direction intersecting the one direction.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: January 24, 2017
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroshi Yamamoto, Hiroshi Sekiguchi, Masahiro Goto, Keiji Kashima
  • Patent number: 9507159
    Abstract: A light guide plate is described that includes a plurality of reflection areas and a plurality of scattering areas arranged to provide light to a display panel to display images with parallax. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged to form a parallax barrier, and a display panel that displays an image based on light received from the light guide plate. A display apparatus is described that can include a light guide plate comprising a plurality of scattering areas and a plurality of reflection areas arranged in an alternating pattern, and a display panel that displays an image based on light received from the light guide plate. An apparatus is described that includes a backlight positioned on a first side of the light guide plate.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: November 29, 2016
    Assignee: Sony Corporation
    Inventor: Masaru Minami
  • Patent number: 9494742
    Abstract: A light capturing sheet includes a light transmitting sheet and a plurality of optical coupling structures disposed therein. The optical coupling structures each include a first light-transmitting layer, a second light-transmitting layer, a third light-transmitting layer interposed therebetween, and a diffraction grating. Refractive indices of the first and second light-transmitting layers are lower than a refractive index of the light transmitting sheet, and a refractive index of the third light-transmitting layer is higher than the refractive indices of the first and second light-transmitting layers. The optical coupling structures are arranged in first and second directions in a plane parallel to principal surfaces of the light transmitting sheet, and in a third direction not parallel thereto.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: November 15, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Seiji Nishiwaki
  • Patent number: 9494729
    Abstract: The present disclosure provides a backlight source and a display device. The backlight source is adapted to provide backlight to a display panel. The display panel includes a plurality of pixel units each of which includes a plurality of sub-psub-pixels. The backlight may provide different colors of backlight respectively to different sub-psub-pixels of the pixel unit. Since the backlight source may provide different colors of backlight respectively to the different sub-psub-pixels of the pixel unit, a colorful displaying may be achieved through the backlight provided by the backlight source. Therefore, there is no needs to provide color resists in opening areas between black matrixes of an upper substrate of the display panel, and thus the usage of the backlight source may improved. Furthermore, the manufacturing cost of the display panel may reduced due to the color resist needs not to be manufactured.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: November 15, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Bin Feng, Yingqiang Gao
  • Patent number: 9471097
    Abstract: A display device includes a display panel including a display area configured to display an image and a non-display area adjacent to the display area; a front panel that is substantially transparent and on a front surface of the display panel; and a blind between the display panel and the front panel at a portion of the non-display area, wherein the blind includes a plurality of strips spaced apart from each other and adjacent ones of the strips are at least partially overlapped with each other when viewed in at least one direction.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: October 18, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Youn Hwan Jung
  • Patent number: 9465243
    Abstract: Provided is a liquid crystal display device including: a CF substrate; a TFT substrate disposed at a position facing the CF substrate; a transfer member provided at a corner portion in a bezel region of the TFT substrate; a spacer member for maintaining a distance between the CF substrate and the TFT substrate within a predetermined range; and a cutting mark made of the same material as that of the spacer member, and disposed on the CF substrate between a cutting line for the CF substrate from a mother CF substrate and the transfer member.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: October 11, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroshi Osaki, Akinori Sumi
  • Patent number: 9435924
    Abstract: Articles comprising a substrate and a first layer on a major surface thereof, wherein the first layer has a first random, nanostructured surface, and wherein the first layer has an average thickness up to 0.5 micrometer. Embodiments of the articles are useful, for example, for display applications (e.g., liquid crystal displays (LCD), light emitting diode (LED) displays, or plasma displays); light extraction; electromagnetic interference (EMI) shielding, ophthalmic lenses; face shielding lenses or films; window films; antireflection for construction applications; and, construction applications or traffic signs.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: September 6, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Ta-Hua Yu, Moses M. David, Kalc C. Vang
  • Patent number: 9423558
    Abstract: A display apparatus includes a backlight unit generating light, a bottom receiving member including a bottom portion and a first sidewall portion extending from the bottom portion to define a receiving space accommodating the backlight unit, an intermediate frame coupled to the bottom receiving member including a second sidewall portion facing the first sidewall portion and a cover portion extending inward from the second sidewall portion to cover an upper edge of the backlight unit, and a display panel on the cover portion for receiving the light from the backlight unit and displaying an image. The bottom receiving member includes a protrusion protruding outward from the first sidewall portion, and the intermediate frame includes a distance adjusting portion in an inner side surface of the second sidewall portion engaged with an outer surface of the protrusion to move the cover portion along a z-axis direction away from the bottom portion.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 23, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Tai-Yun Jung
  • Patent number: 9411094
    Abstract: A backlight module is disclosed. The backlight module includes a light guide plate, a light source, a back plate, and a positioning component for maintaining a light coupling distance between the light emitting surface of the light source and the light incident surface of the light guide plate. There is a light coupling distance between the light emitting surface of the light source and the light incident surface of the light guide plate. When a temperature change occurs, the positioning component occurs as a first deformation, as well as the light guide plate occurs as a second deformation. The light coupling distance remains unchanged under the influence of the first deformation and the second deformation. The positioning reliability of the light guide plate is improved in the present invention.
    Type: Grant
    Filed: November 12, 2014
    Date of Patent: August 9, 2016
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO.
    Inventor: Gang Yu
  • Patent number: 9383605
    Abstract: A backlight unit includes a light source portion configured to provide light to a display panel, a reflection sheet arranged on a lower part of the light source portion, a mold frame accommodating the light source portion, and a support frame which supports the mold frame and includes a bottom portion, first and second side wall portions which extend upward from both end sides of the bottom portion and face each other, a ceiling portion which extends in a horizontal direction from an upper end of the first side wall portion, and a slant portion slanted downward from an end part of the ceiling portion and having one end that comes in contact with the end part of the ceiling portion and the other end that comes in contact with an upper end of the second side wall portion.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: July 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Se Ki Park, Su Chang Ryu, Jae Sang Lee, Yong Hwi Kim
  • Patent number: 9383482
    Abstract: The present invention concerns antireflective films comprising a high refractive index layer (60) and low refractive index layer (80) disposed on the high refractive index layer. The antireflective films have a microstructured surface (70) that can be derived from a microreplicated tool.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: July 5, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Christopher P. Tebow, Tri D. Pham, Steven H. Kong, Joseph T. Aronson, Kyle J. Lindstrom, Michael K. Gerlach, Michelle L. Toy, Taun L. McKenzie, Anthony M. Renstrom, Robert A. Yapel, Mitchell A. F. Johnson
  • Patent number: 9377643
    Abstract: An electro-optical devices includes: a first substrate; a second substrate having one surface opposite to the first substrate; a support member configured to hold the first and second substrates with the second substrate located outside the first substrate, and to include a frame portion surrounding the first and second substrates; a first conductive film formed on the other surface of the second substrate; and a conductor layer placed between the frame portion and the first and second substrates, and electrically connected to the first conductive film. The first conductive film is held at a constant potential via the conductor layer.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: June 28, 2016
    Assignee: Japan Display Inc.
    Inventor: Yasunori Onishi
  • Patent number: 9366805
    Abstract: A LED module includes a printed circuit board, LEDs which are vertically mounted on the printed circuit board and which emit light onto a side surface, and a contact member which is provided to come into contact with a light guide plate. The printed circuit board may be movably coupled to a bottom chassis. When the light guide plate undergoes thermal expansion, the LED module may move by pressing of the light guide plate acting on the contact member. Accordingly, a gap between the light guide plate and the LEDs may be uniformly maintained even when the light guide plate undergoes thermal expansion or is returned to an original state.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae Hyun Park, Jun Seok An, Yong Hun Kwon, Nae Won Jang
  • Patent number: 9360887
    Abstract: A display device includes a base (1) and a curvature-adjustable display screen (3) mounted on the base (1). The base (1) includes two supporting legs (11) and a connecting part (15) disposed therebetween. Each of the supporting legs (11) includes a placing part (111) and a mounting part (113) upwardly extending therefrom. The mounting parts (113) are respectively connected to two sides of the display screen (3). The connecting part (15) is disposed between the two placing parts (111) and capable of allowing the two placing parts (111) rotatable relative to each other along with a change of curvature of the display screen (3) and thereby resulting in the base (1) variable with the change of curvature of the display screen (3). Therefore, the curvature of the display screen (3) can be adjusted according to user's viewing needs and the convenience of product use is increased.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: June 7, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Chengling Lv, Yajun Yu, Guofu Tang
  • Patent number: 9337401
    Abstract: A light emitting device package according to one exemplary embodiment includes a sealing material and organic particles. The organic particles enhance a heat discharge rate and thus reliability of the light emitting device package due to excellent thermal characteristics thereof. Moreover, the organic particles achieve an optical distribution effect to enhance light extraction efficiency of the light emitting device package.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: May 10, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventor: Sangyoul Lee
  • Patent number: 9336726
    Abstract: A liquid crystal display device includes: a light emitting diode array unit including at least two groups of light emitting diode arrays for emitting light; a light emitting diode driving unit for supplying at least two pulse width modulation signals having different phases from each other to the at least two groups of light emitting diode arrays, respectively; a liquid crystal display panel for displaying images using the light from the light emitting diode array unit; and a timing controller for controlling the light emitting diode driving unit and the liquid crystal display panel.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: May 10, 2016
    Assignee: LG Display Co., Ltd.
    Inventor: Sun-Ung Kim
  • Patent number: 9326148
    Abstract: A display apparatus and an authorizing method thereof are provided. The display apparatus includes a display panel and at least one wireless communication module disposed behind the display panel. In the method, a frame is displayed on the display panel, and the at least one wireless communication module is used to communicate with the wireless communication apparatus so as to obtain authorization data. Each of the at least one wireless communication module is operated at a working frequency capable of penetrating through the display panel to communicate with the wireless communication apparatus. An authorization process related to a content of the frame is executed by using the received authorization data.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: April 26, 2016
    Assignee: Wistron Corporation
    Inventors: Yu-Wei Chiu, Chih-Hong Chu
  • Patent number: 9322979
    Abstract: A backlight unit for a liquid crystal display device including an light emitting diode light source; a light conversion layer disposed apart from the light emitting diode light source, wherein the light conversion layer is configured to convert light emitted from the light emitting diode light source to white light and provide the white light to a liquid crystal panel; and a light guide panel disposed between the light emitting diode light source and the light conversion layer, wherein the light conversion layer includes a semiconductor nanocrystal and a polymer matrix, wherein the semiconductor nanocrystal is coated with a first polymer, and wherein the polymer matrix comprises a thermoplastic second polymer.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun A Kang, Eun Joo Jang, Shin Ae Jun, Hyo Sook Jang, Chul Ho Jung
  • Patent number: 9319621
    Abstract: A television receiver includes a reception section receiving television broadcast, and a display apparatus on which an image is displayed based on the television broadcast received by the reception section. The backlight chassis included in the display apparatus supports a light source unit emitting light for displaying an image and constitutes a part of an outer casing of the display apparatus. The backlight chassis has an integrally continuous circumferential wall formed of side walls vertically extending from the respective sides of the bottom wall of a rectangular shape. The circumferential wall surrounds the light source unit.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: April 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hideyuki Chikazawa
  • Patent number: 9304245
    Abstract: Disclosed is a display device having a slim and narrow structure. The display device comprises a liquid crystal panel; a light source for providing light to the liquid crystal panel; a light guide of a glass material, wherein the light source is combined with one side of the light guide; a reflector formed on at least one of both surfaces of the light guide; and an adhesive member formed on one surface of the light guide confronting the liquid crystal panel, and provided to attach the liquid crystal panel and the light guide to each other.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: April 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Young Min Kweon, Young Nam Lee, Chang Soo Jang, Du-Ho Jo
  • Patent number: 9285620
    Abstract: Provided is a liquid crystal display device including: a CF substrate; a TFT substrate disposed at a position facing the CF substrate; a transfer member provided at a corner portion in a bezel region of the TFT substrate; a spacer member for maintaining a distance between the CF substrate and the TFT substrate within a predetermined range; and a cutting mark made of the same material as that of the spacer member, and disposed on the CF substrate between a cutting line for the CF substrate from a mother CF substrate and the transfer member.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 15, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Osaki, Akinori Sumi
  • Patent number: 9261640
    Abstract: A liquid crystal display apparatus includes a liquid crystal display panel including a liquid crystal cell between first second polarizing plates; and a surface light source device. The surface light source device includes a light source unit, a light guide plate for outputting first directivity light having directivity of maximum intensity in a first direction, which forms a predetermined angle from a normal direction of the light output surface in a plane approximately parallel to a light guiding direction of light, and having a high ratio of a polarized light component oscillating in the plane and a prism sheet being configured to convert the first directivity light into second directivity light directed in a second direction within a predetermined angle from the normal direction of the light output surface of the light guide plate while substantially maintaining a polarization state of the first directivity light.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: February 16, 2016
    Assignees: KEIO UNIVERSITY, DAI NIPPON PRINTING CO., LTD., NITTO DENKO CORPORATION, NITTO JUSHI KOGYO CO., LTD.
    Inventors: Yasuhiro Koike, Runa Nakamura, Fumihiro Arakawa, Hiroshi Yamamoto, Takehito Fuchida, Shouhei Maezawa, Hiroyuki Takemoto, Nao Murakami, Tsuyoshi Ishikawa, Eizaburo Higuchi
  • Patent number: 9265117
    Abstract: The light source apparatus includes: a light source substrate having a light emission unit; an optical sheet facing the light emission unit; a plurality of detection units configured to detect light; and an adjustment unit configured to adjust light emission brightness of the light emission unit on the basis of detection values of two or more of the detection units, the two or more detection units including the detection unit arranged at a position at which a change in the detection value due to a deflection of the optical sheet is positive when the light emission unit emits the light and the detection unit arranged at a position at which the change in the detection value due to the deflection of the optical sheet is negative when the light emission unit emits the light.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: February 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hironobu Hoshino, Masanao Kurita
  • Patent number: 9239421
    Abstract: The present invention allows light leaked to outside of a light guide plate (50) from a surface area L to pass through a diffusion sheet (70) by covering both the bottom of an optical sheet (75) and the surface area L of the light guide plate (50) located between an LED FPC (25) and the optical sheet (75) with the diffusion sheet (70). This irradiates a liquid crystal display panel (30) with light after the light leaked to outside from the surface area L is diffused by the diffusion sheet (70), so unevenness in the brightness of backlight emitted from a backlight device (240) can be reduced. Thus, the brightness of images displayed on a screen can be made uniform regardless of distance to an LED (60).
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: January 19, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Kazunori Minoura
  • Patent number: 9194997
    Abstract: A backlight unit and a two-dimensional (2D) and three-dimensional (3D) image display system including the same. The backlight unit includes a first light guide plate and a second light guide plate, wherein the first light guide plate includes a plurality of first diffusion units that are aligned to be spaced apart from each other, and the second light guide plate includes a plurality of second diffusion units that are aligned alternately with the first diffusion units. Thus, an emission direction of light is controlled, so that a 3D image may be displayed in a plurality of viewing zones.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: November 24, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-hoon Cha, Sergey Shestak, Ki-hyung Kang
  • Patent number: 9182523
    Abstract: An optical sheet having a single sheet structure for an edge-lighting backlight unit using a printless light guide plate, a method of manufacturing the same, and a liquid crystal display apparatus using the same are provided. The optical sheet having a single sheet structure includes a first prism sheet having a prism pattern formed on the upper surface thereof, and a second prism sheet having a prism pattern formed on the upper surface thereof. Further, prism ridges of the first prism sheet are attached to the bottom surface of the second prism sheet by means of an adhesive so that the prism pattern of the first prism sheet and the prism pattern of the second prism sheet are directed in the same direction.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: November 10, 2015
    Assignee: GLOTEC CO., LTD
    Inventors: Gi Suk Sung, Chang Kun Kim
  • Patent number: 9158058
    Abstract: This display device includes a display device body, a display portion arranged on the front side of the display device body, a light source substrate, a light guide plate arranged on the rear side of the display portion to be opposed to the light source substrate mounted with the light source, having a light incident surface including a side surface receiving light emitted from the light source, a heat sink arranged on the rear side of the light guide plate, including a light source substrate fixing portion to which the light source substrate is attached and fixed by a double-faced adhesive tape, and a substrate pressing portion pressing the front end surface of the light source substrate attached to the light source substrate fixing portion in a direction toward the bottom surface of the heat sink in a surface contact state.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: October 13, 2015
    Assignee: Funai Electric Co., Ltd.
    Inventor: Hiromasa Sasaoka
  • Patent number: 9158149
    Abstract: A film for a backlight unit including a semiconductor nanocrystal-polymer composite film including a semiconductor nanocrystal and a matrix polymer in which the semiconductor nanocrystal is dispersed, wherein the matrix polymer is a polymer produced by a polymerization of a multifunctional photo-curable oligomer, a mono-functional photo-curable monomer, and a multifunctional photo-curable cross-linking agent, the multifunctional photo-curable oligomer has an acid value of less than or equal to about 0.1 mg of KOH/g, and a content (A1) of a first structural unit derived from the multifunctional photo-curable oligomer, a content (A2) of a second structural unit derived from the mono-functional photo-curable monomer, and a content (A3) of a third structural unit derived from the multifunctional photo-curable cross-linking agent satisfy Equation 1: A1<(A2+A3).
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chul Ho Jung, Hyun A Kang, Soo Kyung Kwon, Won Joo Lee, Eun Joo Jang, Hyo Sook Jang, Shin Ae Jun, Oul Cho, In Taek Han
  • Patent number: 9146343
    Abstract: A display device (100) is provided with: a display panel (110); a light guide member (150) provided in a frame shape at a periphery of the display panel (110) on the viewing side, the light guide member (150) guiding the light that performs image display on the display panel (110) to outside of the display panel (110); and a transparent sheet-shaped covering member (140) laminated on the surface of the display panel (110) on the viewing side, with a portion of the covering member (140) provided in-between the light guide member (150) and the display panel (110). The light guide member (150) is bonded to the surface of the covering member (140) by an adhesive agent (151).
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 29, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Hiroyuki Moriwaki
  • Patent number: 9140931
    Abstract: The present invention relates to a backlight module and a liquid crystal display (LCD) device, and the backlight module comprises: a back plate disposed at the bottom of the backlight module; light emitting diode (LED) light sources disposed on the back plate; and a diffusion plate disposed on a light output surface of the backlight module. There are different distances between the LED light sources disposed in different areas of the back plate and the diffusion plate. By adopting different height of LED light sources in different areas of the back plate, the display quality of the backlight module and the LCD device according to the present invention can be increased.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: September 22, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Hu He
  • Patent number: 9137909
    Abstract: The present invention provides a splice type display back plate and a liquid crystal display device. The splice type display back plate includes at least two stents spliced together, each stent being disposed with enhancing ribs respectively, enhancing ribs including: at least two first enhancing parts disposed separately with interval at splicing locations of stents and second enhancing part connecting the at least two first enhancing parts; the first enhancing parts of two spliced stents overlapping and engaged chimerically. The display back plate of the present invention is formed by splicing two stents so as to reduce the weight of the back plate and material cost. Also, with enhancing ribs disposed on the two stents respectively, the enhancing ribs are located at splicing positions and connected in overlapping and chimerical manner to enhance the mechanical strength.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: September 15, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yi-cheng Kuo, Yu-chun Hsiao, Chengwen Que, Pangling Zhang, Dehua Li
  • Patent number: 9121984
    Abstract: The disclosure discloses a backlight unit and a liquid crystal display comprising thereof. The backlight unit comprises a light guiding plate comprising a plurality of light guiding plate units, which are arranged as a matrix along longitudinal and traversal directions, with line-shaped gaps extending respectively along traversal or longitudinal direction existing between two adjacent light guiding plate units; a light source provided at a side of light guiding plate; and a diffusing sheet provided above the light guiding plate. At a position corresponding to the line-shaped gap between the two adjacent light guiding plate units, the diffusing sheet has a shape of line-shaped projection, and the line-shaped projection has a projected direction in a direction of the light emitted from the light guiding plate unit. According to the disclosure, the uniformity of the backlight may be improved.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: September 1, 2015
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Qing Ma, Daekeun Yoon, Fei Shang
  • Patent number: 9116281
    Abstract: Provided are a complex optical film and a light source assembly including the same. The complex optical film includes a first substrate, a light shielding layer formed on a bottom surface of the first substrate, an optical pattern layer formed on a top surface of the first substrate and including concavo-convex portions, a second substrate disposed on the first substrate, and a first adhesive layer disposed under the second substrate, wherein the light shielding layer includes a binder and organic particles and inorganic particles dispersed in the binder, the convex portions of the optical pattern layer at least partially penetrate into the first adhesive layer to be combined with the first adhesive layer, and a low-refraction area having a lower refractive index than the optical pattern layer and the first adhesive layer is defined between the first adhesive layer and the optical pattern layer.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: August 25, 2015
    Assignee: SHINWHA INTERTEK CORP.
    Inventors: Jin-Tae Woo, Jae-Soon Lee, Min-cheol Kook, Jong-Yoon Lim, Sung-Keun Kim, Il-ho Jeon, Yong-Jun Choi
  • Patent number: 9113114
    Abstract: A method for automatically controlling image brightness in an image photographing device by calculating a histogram for an image; obtaining a brightness average for the histogram; determining if a number of pixels of a histogram distribution within a first range and a number of pixels of a histogram distribution within a second range are included within a preset range; and when the number of pixels of the histogram distribution within the first range and the number of pixels of the histogram distribution within the second range are included within the preset range, as a result of a determination, adjusting the brightness average to be a reference brightness.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: August 18, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventor: Yong-Gu Lee
  • Patent number: RE45749
    Abstract: An optical unit includes a base, a light-condensing member disposed on the base to condense a first portion of light that is incident onto the base and protrusion members disposed on a surface of the light-condensing member to scatter a second portion of the light that is incident onto the base. A backlight assembly includes light sources, an optical unit receiving light from the light sources to condense and scatter the light, and may also include an optical member disposed over the optical unit to enhance the front luminance of the light. A display device includes light sources, an optical module and a display panel. Thus, display quality of the display device may be enhanced.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Yong Hwang, In-Sun Hwang, Joong-Hyun Kim, Hye-Eun Park, Sang-Yu Lee