Patents Examined by David C. Nelms
  • Patent number: 7495714
    Abstract: A flat panel display having a black mask EMI layer isolated from Vcom and tied to zero potential. The flat panel display has a integral metal heater layer and thermal sensor that are in close proximity to the liquid crystals to provide efficient heating and temperature sensing.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: February 24, 2009
    Assignee: American Panel Corporation
    Inventors: William R. Dunn, Keuk-Sang Kwon, Hyoung Yol Park
  • Patent number: 7483095
    Abstract: Embodiments of the invention include a method, device and/or system for displaying a color image having a plurality of more-than-three primary color pixels The device may include, for example, an array of sub-pixel elements of at least four different primary colors, wherein the total number of sub-pixel elements in the array is significantly smaller than a multiplication product of the number of more-than-three-primary color pixels in the image multiplied by the number of the at least four different primary colors. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: January 27, 2009
    Assignee: Genoa Color Technologies Ltd
    Inventors: Shmuel Roth, Moshe Ben-Chorin, Doron Malka
  • Patent number: 7474375
    Abstract: A flat display device including a display region, for displaying an image, between a first substrate and a second substrate. The flat display device includes a sealant adhering the first substrate to the second substrate, one or more interconnection lines between the sealant and the first substrate, and a covering film between the sealant and the interconnection lines.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: January 6, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Won-Kyu Kwak, Kwan-Hee Lee, Tae-Wook Kang
  • Patent number: 7471363
    Abstract: The invention provides a liquid crystal display device having a wide viewing angle for transmissive display and reflective display. The liquid crystal display device according to the invention can include a homeotropic liquid crystal layer interposed between a pair of substrates. The liquid crystal display device has a transmissive display area and a reflective display area in each dot area. A liquid crystal layer thickness-adjustment layer can be interposed between at least the substrate of the pair of substrates and the liquid crystal layer. The liquid crystal layer thickness-adjustment layer reduces the liquid crystal layer thickness of the reflective display area in comparison with the liquid crystal layer thickness of the transmissive display area. On the substrate opposing the substrate with the liquid crystal layer thickness-adjustment layer, protrusions protruding from the inner surface of the substrate to the liquid crystal layer are formed.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: December 30, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Tsuyoshi Maeda
  • Patent number: 7471361
    Abstract: The present invention provides a liquid crystal display device. An optical film having negative uniaxial double refractive index ellipsoids is arranged below a semi-transmitting liquid crystal display cell and, thereafter, a ?/4 phase difference plate, a ?/2 phase difference plate and a polarizer are arranged. The orientation axis direction of the optical film having negative uniaxial double refractive index ellipsoids is substantially equal to the direction which is rotated by 90° in the clockwise direction from a resultant vector of the orientation axis direction of the upper orientation film and the orientation axis direction of the lower orientation film of the liquid crystal display cell. Further, phase lagging axis of the upper and lower ?/4 phase difference plate is set substantially equal to the orientation axis direction of the optical film having negative uniaxial double refractive index ellipsoids.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: December 30, 2008
    Assignee: Hitachi Displays, Ltd.
    Inventors: Koichi Fukuda, Yoshiaki Nakamura
  • Patent number: 7471356
    Abstract: The present invention provides a reflector having a light-diffusing property which suppresses inter-object reflection over a wide angle, and giving particularly high reflectance in an intended range of viewing angle; and to provide a reflection type liquid crystal display device using the same. The reflector includes a plurality of light-reflective concave portions. Each of the concave portions is formed so that an inclination angle (an angle between a plane tangential to a point on a concave surface and the surface of the base material) is maximum on a side portion of the curved surface, and so that the direction of the side portion having the maximum inclination angle is on a far side from a view point of an observer.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: December 30, 2008
    Assignee: Alps Electric Co., Ltd.
    Inventors: Katsumasa Yoshii, Tatsuya Moriike, Kenji Omote, Mitsuru Kano
  • Patent number: 7468765
    Abstract: An LCD device includes a plurality of pixels each having a slope area configured by a plurality of layers. A shielded element shielded by a black matrix has an inner edge located at a distance X apart from the outer edge of the slope area, the distance X being expressed by the formula: x=(T1/cos ?)×sin(???), wherein ? and ? are incidence angle and refracted angle, respectively, of the incident light at an interface between the layers having different refractive indexes in the slope area, and T1 is a thickness of the underlying layer forming the interface.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: December 23, 2008
    Assignee: NEC Corporation
    Inventors: Kunihiro Shiota, Hiroshi Tanabe
  • Patent number: 7468767
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: December 23, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Patent number: 7468770
    Abstract: A liquid crystal display device includes a display panel and a viewing angle control panel. The viewing angle control panel includes a pair of substrates, a liquid crystal layer interposed between the pair of substrates, and a pair of electrodes for applying an electric field to the liquid crystal layer. The liquid crystal layer is composed from hybrid-aligned liquid crystal molecules. The viewing angle of the display panel is controlled by changing an alignment state of the hybrid-aligned liquid crystal molecules in the liquid crystal layer by voltage applied by the electrodes.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: December 23, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Osamu Okumura
  • Patent number: 7466370
    Abstract: A flat panel display device and a substrate therefor capable of preventing a short circuit of pixels due to static electricity is provided. The flat panel display device includes a substrate, a plurality of pixel electrodes, a plurality of pixel electrode pads, a plurality of connection wiring parts, a conductive bar. The pixel electrodes is provided to the substrate. The pixel electrode pads are provided to at least an edge on one side of the substrate to correspond to the respective pixel electrodes. The connection wiring parts connect the pixel electrodes with the corresponding pixel electrode pads and have at least one connection wiring, respectively. The conductive bar is provided on the substrate and positioned on an outer side of the pixel electrode pads to electrically connect the pixel electrode pads. The conductive bar is provided so that a connection of the conductive bar with the pixel electrode pads may be cut off after the manufacturing.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 16, 2008
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Byung-Hoon Chae, Se-Jun Hoo
  • Patent number: 7466384
    Abstract: A liquid crystal display panel comprising a first substrate, a second substrate, and a liquid crystal layer is provided. A plurality of first pixel regions, second pixel regions and third pixel regions are defined on the second substrate. A first alignment protrusion structure is disposed in the first pixel regions, a second alignment protrusion structure is disposed in the second pixel regions, and a third alignment protrusion structure is disposed in the third pixel regions. Wherein, the heights of the first, second and third alignment protrusion structures are different. The liquid crystal layer is disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: December 16, 2008
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Yu-Zhi Li
  • Patent number: 7463314
    Abstract: In a flat panel display device, the display device includes a display panel to display an image, a receiving receptacle and a guiding member. The receiving receptacle has a bottom surface and a first sidewall. The guiding member has a first coupling portion that is positioned higher than the first sidewall and a guiding portion that is positioned higher than the first coupling portion to guide the display panel disposed on the first sidewall. The first coupling portion of the guiding member is disposed between the display panel and the first sidewall of the receiving receptacle, and the guiding portion of the guiding member prevents movement of the display panel.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: December 9, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Duk Lee
  • Patent number: 7463321
    Abstract: The present invention relates to a liquid crystal display and a fabricating method thereof. The cell gaps for the red, green and blue pixel areas are formed in a separate manner for correcting the color shift to enhance image quality. Openings for controlling the cell gaps are provided in the protective layer and the gate insulating layer and have a zigzag-shaped boundary. In this way, the light leakage near the boundary of the openings can be prevented.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: December 9, 2008
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jang-Kun Song, Sang-Gab Kim, Seung-Hee Lee
  • Patent number: 7463317
    Abstract: A reflective layer 212 having an aperture 212a for each pixel is formed on a first substrate 211, and a colored layer 214 for constituting a color filter is formed thereon. A surface protection layer 215 is formed on the colored layer 214, and a transparent electrode 216 is formed further thereon. The colored layer 214 is constituted so as to cover the aperture 212a in a two-dimensional direction, but overlaps only a part of a reflection surface in the pixel in a two-dimensional direction.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: December 9, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Keiji Takizawa, Yoshihiro Otagiri
  • Patent number: 7460202
    Abstract: A liquid crystal device includes a pair of substrates including a first substrate and a second substrate and a liquid crystal layer having a negative dielectric anisotropy and interposed between the first and second substrates. The first substrate includes a data line, a switching device connected to the data line, an insulating film formed on the data line and the switching device, a pixel electrode formed on the insulating film, and a contact hole to which the switching device and a wire extending from the pixel electrode are connected.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 2, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Masahiro Horiguchi, Masakatsu Higa
  • Patent number: 7460192
    Abstract: A thin film diode panel comprises a pixel electrode formed on a substrate, the pixel electrode including a stem portion and a plurality of branch portions extended from the stem portion, and a data electrode line formed on the substrate, the data electrode line including a plurality of branch electrodes formed parallel to the plurality of branch portions. The plurality of branch portions may extend in a direction perpendicular to the stem portion and the plurality of branch electrodes may extend in a direction perpendicular to the data electrode line.
    Type: Grant
    Filed: September 29, 2004
    Date of Patent: December 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joon-Hak Oh, Chong-Chul Chai, Kyong-Ju Shin, Jin-Hong Kim, Sung-Jin Hong
  • Patent number: 7460193
    Abstract: A flat-panel display apparatus, to which a sensor board can be easily attached, is provided. In the flat-panel display apparatus, a driver circuit is attached to a side portion of a liquid crystal panel via a flexible print circuit. The liquid crystal panel is attached to the main surface of a frame. The flexible print circuit is bent toward the back surface of the frame. The driver circuit is attached to the back surface of the frame with a space therebetween. A digitizer board is inserted into the space between the driver circuit and the frame. Thus, the digitizer board can be easily attached to the back surface of the frame.
    Type: Grant
    Filed: February 23, 2005
    Date of Patent: December 2, 2008
    Assignee: Toshiba Matsushita Display Technology Co., Ltd.
    Inventor: Takaharu Matsuoka
  • Patent number: 7460199
    Abstract: To provide a liquid crystal display device and an electronic apparatus in which deterioration of contrast due to a protrusion or a slit used for division of alignment can be prevented in the liquid crystal display device including a liquid crystal which has a negative dielectric anisotropy exhibiting vertical alignment as an initial alignment state. There is provided a liquid crystal display device comprising a liquid crystal layer, which includes a liquid crystal having a negative dielectric anisotropy exhibiting vertical alignment as an initial alignment state, between a pair of substrates and disposed to be opposite to each other, in which alignment control means for controlling alignment of the liquid crystal layer is provided on at least one of electrodes provided on the pair of substrates, and in which a light-shielding film BM two-dimensionally overlapped with the alignment control means is provided on at least one substrate of the pair of substrates.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: December 2, 2008
    Assignee: Seiko Epson Corporation
    Inventors: Hitoshi Tsuchiya, Joji Nishimura
  • Patent number: 7456917
    Abstract: A display panel includes a liquid crystal layer, an array substrate and a color filter substrate. The array substrate has a plurality of data lines, a plurality of gate lines and a plurality of pixel regions. The electrode for a storage capacitor is formed on each of the pixel regions. The color filter substrate is combined with the array substrate to receive the liquid crystal layer therebetween. The color filter substrate includes a first region where a color filter is formed and a second region where an opening is formed. The opening corresponds to the electrode for the storage capacitor. Thus, light reflected by the electrode for the storage capacitor exits the display panel through the opening, thereby enhancing an optical reflectivity of each pixel region.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: November 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Young-Nam Yun
  • Patent number: 7456922
    Abstract: An electrooptic device includes a substrate and plurality of pixel units. Each pixel unit includes a pixel electrode; an active element; a conductive layer below the pixel electrode connecting the active element to the pixel electrode; a resin film between the active element and the pixel electrode and between the conductive layer and the pixel electrode, having a small hole overlapping part of the conductive layer; a first insulating film between the resin film and the conductive layer and between the resin film and the active element, overlapping the conductive layer and the active element and having a first hole inside the small hole having a diameter equal to or smaller than the bottom of the small hole; and a second insulating film between the resin film and the pixel electrode, having a second hole continuous to the first hole forming a contact hole together with the first hole.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: November 25, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Tsukasa Eguchi