Patents Examined by Tai Duong
  • Patent number: 8810742
    Abstract: A display apparatus includes: a display unit that displays a two-dimensional image; and a variable lens array disposed to face the display unit, wherein the variable lens array includes a variable phase difference layer that receives incident linearly polarized light polarized in a first direction and allows the linearly polarized light polarized in the same direction to exit or allows linearly polarized light polarized in a second direction switched from the first direction and different therefrom to exit, and an optically anisotropic layer that receives the light having exited out of the variable phase difference layer and works as a lens array for one of the light polarized in the first direction and the light polarized in the second direction whereas working as a transparent layer for the other light.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: August 19, 2014
    Assignee: Japan Display West, Inc.
    Inventors: Tsuyoshi Ohyama, Daisuke Takama
  • Patent number: 8810743
    Abstract: Provided are a multifunctional optical filter for a stereoscopic display device and a stereoscopic display device including the same. The multifunctional optical filter includes a 3D filter layer patterned into a first region adjusting a polarization state of a right-eye image and a second region adjusting a polarization state of a left-eye image, and a color filter layer having a RGB pattern, wherein the RGB pattern of the color filter layer and the pattern of the 3D filter layer are formed to correspond to each other.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: August 19, 2014
    Assignee: LG Chem, Co. Ltd.
    Inventor: Joon-Hyung Kim
  • Patent number: 8804061
    Abstract: Disclosed embodiments relate to signal routings for use in a display device. The display device may include a liquid crystal display (LCD) panel having multiple pixels arranged in rows and columns. Each of the pixels includes a pixel electrode and a thin-film transistor (TFT). The LCD may include a conductive signal routing portion having a first metallic layer, a second metallic layer formed directly on the first metallic layer, and a third metallic layer formed directly on the second metallic layer. The first metallic layer may include a contact terminal. The second metallic layer when combined with the third metallic layers may decrease the resistance of the third metallic layer.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: August 12, 2014
    Assignee: Apple Inc.
    Inventors: Ting-Kuo Chang, Shih-Chang Chang, Abbas Jamshidi Roudbari, Cheng-Ho Yu
  • Patent number: 8786815
    Abstract: A display panel having a display region and a non-display region is provided. The display panel includes a plurality of pixel structures in the display region, and each pixel structure includes a scan line, a data line, a first active device, a pixel electrode, a first insulating layer, a capacitor electrode, and a second insulating layer. The first active device includes a first gate, a first channel, a first source, and a first drain. The second insulating layer covers the first insulating layer and the capacitor electrode and is located between the capacitor electrode and the first drain. At least one driving circuit is disposed in the non-display region and includes at least one second active device. Hence, a relatively thin insulating layer can be disposed between the capacitor electrode and the drain to reduce the area of the capacitor region and to achieve a desired aperture ratio.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: July 22, 2014
    Assignee: Au Optronics Corporation
    Inventors: Chih-Hung Lin, Wu-Liu Tsai, Chuan-Sheng Wei, Che-Chia Chang, Sheng-Chao Liu, Yu-Cheng Chen, Yi-Hui Li, Maw-Song Chen
  • Patent number: 8786800
    Abstract: A frameless liquid crystal display device includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and mounted to the rear enclosure, and a liquid crystal display panel arranged on the mold frame. The liquid crystal display panel has an upper portion mounted to the mold frame through a single-side attaching section, which comprises a central attaching portion bonded to the liquid crystal display panel and two fabric strip-like fastening segments extending from the central attaching portion. The mold frame forms through holes through which the fabric strip-like fastening segments extend to engage and fasten each other so the fix the upper portion of the liquid crystal display panel to the mold frame. The liquid crystal display panel forms a step and a surface decoration is positioned on the step and fixed to the mold frame.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 22, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Gang Yu, Liuyang Yang, Pei Jia
  • Patent number: 8780307
    Abstract: To provide a semiconductor device, a liquid crystal display device, and an electronic device which have a wide viewing angle and in which the number of manufacturing steps, the number of masks, and manufacturing cost are reduced compared with a conventional one. The liquid crystal display device includes a first electrode formed over an entire surface of one side of a substrate; a first insulating film formed over the first electrode; a thin film transistor formed over the first insulating film; a second insulating film formed over the thin film transistor; a second electrode formed over the second insulating film and having a plurality of openings; and a liquid crystal over the second electrode. The liquid crystal is controlled by an electric field between the first electrode and the second electrode.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: July 15, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8773619
    Abstract: A liquid crystal display includes a liquid crystal panel, a first polarizer plate stacked on an upper surface of the liquid crystal panel, and a second polarizer plate stacked on a lower surface of the liquid crystal panel. The first polarizer plate may have an absorption axis inclination of +0.1 to +0.2 degrees, or the second polarizer plate may have an absorption axis inclination of ?0.04 to less than 0 or greater than 0 to +0.1 degrees.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: July 8, 2014
    Assignee: Cheil Industries, Inc.
    Inventors: Chang Seok Bae, Ae Kyoung Kim, Hae Ryong Chung, Han Su Kim, Eun Jae Cho
  • Patent number: 8767155
    Abstract: A method for producing a liquid crystal display device including a pair of substrates, a first electrode formed on one substrate, a second electrode formed on the other substrate, and liquid crystal molecules filled between the substrates. The method includes providing alignment layer material exhibiting a vertically orienting property for a selected one of the substrates, aligning a mask having permeable portions and impermeable portions over a selected substrate, irradiating the mask with ultraviolet rays in a first inclined azimuthal direction, and simultaneously irradiating the mask from a second inclined azimuthal direction which is substantially 180 degrees different from the first inclined azimuthal direction. Additionally, the azimuthal direction of the alignment of liquid crystal molecules in a first region of the substrate is substantially 180 degrees different from the azimuthal direction of the alignment of liquid crystal molecules in a second region of the substrate.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: July 1, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidefumi Yoshida, Tsutomu Seino, Yasutoshi Tasaka
  • Patent number: 8760614
    Abstract: This invention relates to an optical element for the purpose of identification and/or prevention of forgery or copying, including at least one layer with anisotropic optical properties, wherein the anisotropic optical properties are patterned, characterized in that the pattern represents biometric information. In addition, this invention relates to a method for the preparation of an optical element for the purpose of identification and/or prevention of forgery or copying.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: June 24, 2014
    Assignee: Rolic Ltd.
    Inventors: Fabien Xavier Delbaere, Hubert Seiberle, Peggy Studer
  • Patent number: 8755016
    Abstract: Embodiments of the disclosed technology relates to a liquid crystal panel, a TFT (thin film transistor) array substrate and a manufacturing method thereof. The TFT array substrate, comprising: a base substrate; and gate scanning lines, data scanning lines and a protection layer formed on the base substrate, and the protection layer covering the gate scanning lines and the data scanning lines, wherein conductive layers are disposed on the protection layer at locations corresponding to the gate scanning lines and/or the data scanning lines in a region for applying a sealant.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: June 17, 2014
    Assignee: Beijing Boe Optoelectronics Technology Co., Ltd.
    Inventor: Sung Hun Song
  • Patent number: 8749724
    Abstract: The present invention discloses an LCD panel. The LCD panel includes a plurality of data lines, a plurality of scan lines insulatingly intersecting the data lines, and a plurality of pixel units defined by the scan lines and corresponding data lines. Any two adjacent pixel units in a same row are respectively coupled to two corresponding scan lines. Any two adjacent pixel units in a same column are respectively coupled to two corresponding data lines. In this present invention, the pixel units coupled to a same data line are respectively coupled to different scan lines so as to reduce the power consumption of the LCD panel.
    Type: Grant
    Filed: August 21, 2011
    Date of Patent: June 10, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Xiu-feng Zhou
  • Patent number: 8749731
    Abstract: A lighting device including a light source, a light guide plate, a first prism sheet which is arranged over the light guide plate, and a second prism sheet which is arranged between the first prism sheet and the light guide plate. The first prism sheet includes first prisms which are formed parallel to each other in the first direction on a first surface which is opposite to the second prism sheet, and the second prism sheet includes second prisms.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: June 10, 2014
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Tetsuya Oshima, Hirotaka Imayama, Yasuhisa Shiraishi, Yoshiharu Nagae
  • Patent number: 8743313
    Abstract: A front frame of a flat panel display having positioning structure allows a LCD cell to be positioned and mounted thereon along an assembly direction. A restraining frame may be further incorporated for positioning and spacing purposes for each component of the display. Optical films, a light guide component, a backlight unit, and a reflector of the flat panel display are then mounted in a row along the assembly direction on the restraining frame or the front frame, where the backlight unit and/or the reflector may be fixed to a back cover of the backlight module in advance. Finally, a speaker, wiring of the display, circuit boards, and a board cover are assembled to the front frame and the back cover.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: June 3, 2014
    Assignee: AmTran Technology Co., Ltd.
    Inventors: I-Chen Cheng, Hung-Tse Wang
  • Patent number: 8730430
    Abstract: A light-emitting element substrate mounting light-emitting elements is arranged on a front face of a chassis. The light-emitting element substrate is connected to a first connector. A power supply substrate for supplying electric power to the light-emitting element substrate is arranged on a rear face of the chassis. A second connector is connected to the power supply substrate. In addition, the first and the second connectors are connected to each other, so that the power supply substrate supplies electric power to the light-emitting element substrate via the first connector and the second connector. The second connector may electrically be connected to the power supply substrate via a harness.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: May 20, 2014
    Assignee: Japan Aviation Electronics Industry, Limited
    Inventor: Takeharu Naito
  • Patent number: 8724054
    Abstract: A spectral conversion device including a plurality of discrete units dyed with a photoluminescent material at a concentration greater than or equal to an amount sufficient to absorb and convert substantially all input light from a light source to a desired output spectrum, and a coating material disposed around the discrete units, wherein the coating material binds the plurality of discrete units to form a matrix, wherein when the plurality of discrete units are positioned over the light source, the input light passing through the transparent discrete units is not converted, and the input light passing through the doped discrete units is converted to red and green wavelengths, further wherein the emitted input light and the converted red and green light correspond to the desired output spectrum to produce one or more colors. An associated method and an associated device used with flat panel image displays are also provided.
    Type: Grant
    Filed: May 27, 2010
    Date of Patent: May 13, 2014
    Inventor: Gary Wayne Jones
  • Patent number: 8724042
    Abstract: A twisted nematic liquid crystal display device includes a first substrate, a plurality of gate lines and a plurality of data lines formed on the first substrate, a plurality of pixels connected to the gate lines and the data lines and each pixel having a first subpixel and a second subpixel, a first subpixel electrode formed in the first subpixel, and a second subpixel electrode formed in the second subpixel. The voltage of the first subpixel electrode is greater than the voltage of the second subpixel electrode, and a ratio of the area of the second subpixel electrode to the area of the first subpixel electrode is in the range of 0.66 to 1.5.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: May 13, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Hwan Hong, Soon-Joon Rho, Jae-Soo Jang, Hee-Seop Kim
  • Patent number: 8724065
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a pixel electrode disposed in a pixel having a greater length in a first direction than in a second direction crossing the first direction, the pixel electrode including a first main pixel electrode and a second main pixel electrode which extend in the second direction, a contact portion which is located between the first main pixel electrode and the second main pixel electrode and extends in the second direction, and a sub-pixel electrode which connects the first main pixel electrode, the second main pixel electrode and the contact portion.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: May 13, 2014
    Assignee: Japan Display Inc.
    Inventors: Masato Kesho, Masanobu Nonaka, Kazuhiro Takahashi, Toshimasa Yonekura
  • Patent number: 8724052
    Abstract: A light-spreading device is disclosed, wherein the light-spreading structure is formed with a wing-shaped protrusion part extending in a first direction and protruding in a different, second direction, such that light enters a surface on one side of the light-spreading structure, opposite to a recess located on another side of the light-spreading structure. The light-spreading structure also has an uneven surface associated with at least one of the wing-shaped protrusion part, the light-entering surface, and the recess.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: May 13, 2014
    Assignee: Epistar Corporation
    Inventors: Min-Hsun Hsieh, Chien-Yuan Wang
  • Patent number: 8724071
    Abstract: A liquid crystal display device includes a TFT substrate, a counter substrate, more than one columnar spacer formed on the counter substrate side, a step film of convex shape formed onto the TFT substrate side and arranged at a position facing the columnar spacer, and a liquid crystal sealed between the TFT substrate and the counter substrate, wherein a difference between a central coordinate of the step film and a central coordinate of the columnar spacer seen in a normal direction of a display surface of the liquid crystal display device varies with standard deviation ? of no smaller than 3 ?m in at least one direction within an appropriate range in a display area of the display surface.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: May 13, 2014
    Assignee: NLT Technologies, Ltd.
    Inventor: Yoshiaki Hashimoto
  • Patent number: RE44889
    Abstract: In a liquid crystal device a substrate (1) favors at least two stable or metastable differently directed liquid crystal alignments, and switching means for causing the liquid crystal material to switch between the alignments includes means arranged for optically irradiating said device. The latter may provide linearly polarized light (3) for inducing a torque on the liquid crystal to determine the alignment direction, and may optionally cooperate with a second energy supplying means such as an electric field (V) for assisting and switching. Alternatively, the alignment of the liquid crystal may be switched by a second energy supplying means such as an electric field, the light serving to produce heat to aid the switching. Either or both energy sources may be applied locally for switching of selected areas or pixels. Energy levels at the bistable substrate may be adjusted by the use of an oligomeric additive (slippery surface).
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: May 13, 2014
    Assignee: F. Poszat Hu, LLC
    Inventors: Richard Jonathan Miller, John Clifford Jones