Patents Examined by Timothy Rude
  • Patent number: 8154691
    Abstract: A matte surface of a display screen is converted to an optically flat surface, for example, via an epoxy resin coating or the like which has a refractive index equal to that of the matte surface. A film with a substantially flat surface may be applied to the matte surface. Alternatively, the matte surface may be removed from the screen, and replaced with an optically smooth surface. The matte surface may be a diffusive surface formed on a birefringent film of an LCD screen. The display screen is the front screen of a multilevel three-dimensional display comprising layered screens, and altering the surface from matte to flat reduces the blurring of displayed images.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: April 10, 2012
    Assignee: Pure Depth Limited
    Inventor: Mark John Searle
  • Patent number: 8045832
    Abstract: A process for forming a mode size converter with an out-of-plane taper formed during deposition with a shadow mask is disclosed. Mode-size converters according to the present invention can have any number of configurations. Measured coupling efficiencies for waveguides with mode size converters according to the present invention show marked improvement.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: October 25, 2011
    Assignee: SpringWorks, LLC
    Inventors: Tao Pan, Richard E. Demaray, Yu Chen, Yong Jin Xie, Rajiv Pethe
  • Patent number: 8023055
    Abstract: In a semiconductor device, a first interlayer insulating layer made of an inorganic material and formed on inverse stagger type TFTs, a second interlayer insulating layer made of an organic material and formed on the first interlayer insulating layer, and a pixel electrode formed in contact with the second interlayer insulating layer are disposed on a substrate, and an input terminal portion that is electrically connected to a wiring of another substrate is provided on an end portion of the substrate. The input terminal portion includes a first layer made of the same material as that of the gate electrode and a second layer made of the same material as that of the pixel electrode. With this structure, the number of photomasks used in the photolithography method can be reduced to 5.
    Type: Grant
    Filed: October 24, 2008
    Date of Patent: September 20, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Setsuo Nakajima, Yasuyuki Arai
  • Patent number: 8013949
    Abstract: An LC display is disclosed that comprises a light source (5) that provides the background illumination, that emits light of only a part of the spectrum and that is disposed on the back (9) of the liquid crystal layer (10) so as to be protected and covered while it still is able to detect or emit light through the liquid crystal layer (10). The detected light is evaluated to control the background illumination and the inventive device enables data communication with an external device.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 6, 2011
    Assignee: Continental Automotive GmbH
    Inventors: Klaus Class-Dieter, Robert Eckmüller, Johannes Kraus
  • Patent number: 7990508
    Abstract: In a liquid crystal display device of an IPS system, to realize reduction of manufacturing cost and improvement of yield by decreasing the number of steps for manufacturing a TFT. A channel etch type bottom gate TFT structure, where patterning of a source region and a drain region and patterning of a source wiring and a pixel electrode are carried out by the same photomask.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: August 2, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Yoshiharu Hirakata
  • Patent number: 7986387
    Abstract: An array substrate for a transflective liquid crystal display device includes: a substrate; a gate line and a data line on the substrate, the gate line and the data line crossing each other to define a pixel region including a transmissive area and a reflective area surrounding the transmissive area; a thin film transistor having a gate insulating layer, the thin film transistor electrically connected to the gate line and the data line; a first passivation layer having a drain contact hole exposing a drain electrode of the thin film transistor and a through hole exposing the substrate in the transmissive area; a pixel electrode on the first passivation layer, the pixel electrode contacting the substrate in the transmissive area through the through hole; and a reflective plate on the pixel electrode, the reflective plate being electrically connected to the drain electrode through the drain contact hole and to the pixel electrode.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: July 26, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Jung Il Lee, Joong-Young Yang
  • Patent number: 7982832
    Abstract: The present invention enhances display efficiency and a contrast of a reflective part in an IPS-type transflective liquid crystal display device.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: July 19, 2011
    Assignee: Hitachi Displays, Ltd.
    Inventors: Hirotaka Imayama, Tetsuya Nagata, Osamu Itou, Shoichi Hirota
  • Patent number: 7973897
    Abstract: A multi-domain liquid crystal display includes multiple first and second picture elements and multiple first and second auxiliary electrodes. The first and second picture elements have opposite polarities under the same frame of an inversion drive scheme, and each picture element has a reflective region and a transmissive region. The first auxiliary electrodes are connected to the first picture elements, and each of the first auxiliary electrodes is positioned next to at least one side of one second picture element. The second auxiliary electrodes are connected to the second picture elements, and each of the second auxiliary electrodes is positioned next to at least one side of one first picture element.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: July 5, 2011
    Assignee: Wintek Corporation
    Inventors: Wen-Chun Wang, Chin-Chang Liu, I Fang Wang, Ming-Chang Yu
  • Patent number: 7973865
    Abstract: A thin film transistor (“TFT”) display plate, capable of reducing a load on a gate line, increasing an aperture ratio and preventing light leakage, includes an insulating substrate, a gate line formed on the insulating substrate, a storage electrode line spaced apart from the gate line and formed on an insulating substrate, a data line insulated from the gate line and the storage electrode line and intersecting the gate line, a pixel electrode formed for each pixel defined by the gate line and the data line, a thin film transistor (“TFT”) connected to the gate line and the data line to apply a voltage to the pixel electrode, and a storage electrode formed on the same layer as the data line and connected to the storage electrode line to form one terminal of a storage capacitor along with the pixel electrode as the other terminal of the storage capacitor.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Bong-jun Lee, Byeong-jae Ahn, Sung-man Kim, Hyun-ho Kang
  • Patent number: 7969521
    Abstract: A liquid crystal display (LCD) device partially or substantially blocks light from a light source from exciting a semiconductor layer. The LCD device includes a substrate, a semiconductor layer, a light-shielding layer, and a light source. The light source directs light toward a lower surface of the substrate. The light-shielding layer is formed between the substrate and the semiconductor layer. Some or all of the light directed towards the semiconductor layer by the light source is blocked by the light-shielding layer.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: June 28, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Binn Kim, Hyung Nyuck Cho, Nam Wook Cho
  • Patent number: 7936423
    Abstract: A liquid crystal display device 1 has subpixels 10 having a light-transmissive region 10a and a light-reflective region 10b. A color filter layer 50 corresponding to an identification pattern 70 that it is desired to be displayed when the liquid crystal display device 1's power is off is formed at the light-reflective regions 10b, so that even when the liquid crystal display device 1 is in the non-driven state, incident external light emerges as outgoing light having the colors of the color layers corresponding to the identification pattern, and hence the identification pattern can be displayed. Thus, any desired pattern can be displayed in the liquid crystal display device's non-driven state, so that a liquid crystal display device with extensive expression and superior display characteristics is provided.
    Type: Grant
    Filed: January 11, 2008
    Date of Patent: May 3, 2011
    Assignee: Sony Corporation
    Inventors: Kimitaka Kamijo, Keiji Takizawa, Toshinori Uehara, Tomoyuki Nakano
  • Patent number: 7929098
    Abstract: A liquid crystal display element includes: electrodes that are formed upon a substrate, and include a mark electrode that is formed in a closed loop, an outer electrode that is arranged at a periphery of the mark electrode, and an isolated electrode that is surrounded by the mark electrode; an electrically insulating layer that is disposed between the electrodes and the substrate, and in which through holes are formed that correspond to the mark electrode, the outer electrode, and the isolated electrode; and a wiring layer that is disposed between the electrically insulating layer and the substrate, and upon which wiring is formed that electrically connects the outer electrode and the isolated electrode via the through holes.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: April 19, 2011
    Assignee: Nikon Corporation
    Inventor: Hiroyuki Koishi
  • Patent number: 7924369
    Abstract: A structure of a light guide plate comprising a light guide plate and a plurality of transparent elements is disclosed. The light guide plate comprises at least onelight incident surface, a light scattering surface and a light emitting surface. The light scattering surface has a plurality of notches and these transparent elements are disposed therein. The transparent elements refractive index is different from that of the light guide plate. By disposing these transparent elements, the light scattering surface can improve light scattering effect. In addition, a back light module comprising a linearlight source and a light guide plate structure mentioned above is also disclosed. The linearlight source is disposed next to the light incident surface of the light guide plate.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 12, 2011
    Assignee: Transpacific Systems, LLC
    Inventors: Yao-Der Huang, Wei-Kuang Chu
  • Patent number: 7920244
    Abstract: A liquid crystal display device includes an array substrate including: gate and data lines crossing each other to define a pixel region on a first substrate; a thin film transistor connected to the gate and data lines; and first and second height adjusters; an opposing substrate facing the array substrate; a liquid crystal layer between the array substrate and the opposing substrate; a gap spacer corresponding to the first height adjuster and contacting the array substrate and the opposing substrate; a first press-buffer spacer corresponding to the second height adjuster, contacting the opposing substrate and spaced apart from the array substrate; and a second press-buffer spacer contacting the opposing substrate and spaced apart form the array substrate, wherein a distance between the first press-buffer spacer and the array substrate is substantially less than a distance between the second press-buffer spacer and the array substrate.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: April 5, 2011
    Assignee: LG Display Co., Ltd.
    Inventors: Dong-Ho Kang, Young-Il Seo, Sung-Hyun Cho
  • Patent number: 7916224
    Abstract: A pixel array substrate including a substrate, a first patterned conductive layer, a second patterned conductive layer, and pixel electrodes is provided. The first patterned conductive layer has scan lines and gate electrodes. The second patterned conductive layer has data lines, source electrodes, drain electrodes, and capacitor electrodes. The data lines and the scan lines define many pixel areas. Many pixel storage capacitances CST is formed between the capacitor electrodes and the first patterned conductive layer. Many gate/drain capacitances CGD is formed in an overlapping area of the drain electrodes and gate electrodes. A liquid crystal capacitance CLC is formed above each pixel electrode. In at least one pixel area, the capacitance ratio of CST and CGD is ?, the capacitance ratio of CLC and CST is ?, and the ratio of a first deviation of CST and a second deviation of CGD is within the range of ?(1+?)(1±50%).
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: March 29, 2011
    Assignee: Chi Mei Optoelectronics Corp.
    Inventor: Chao-Chun Chung
  • Patent number: 7916258
    Abstract: An IPS-LCD panel includes first and second substrates, and a liquid crystal interposed therebetween. The first substrate includes common and pixel electrodes that are formed of a transparent conductive material. Because the common and pixel electrodes are transparent, aperture ratios of the inventive IPS-LCD panel are increased. Another IPS-LCD panel includes opaque pixel electrodes and transparent common electrodes. In forming the opaque pixel electrodes, a black matrix of the same material as the pixel electrodes is also formed on the first substrate. Because the inventive black matrix is much smaller than a conventional one, the aperture ratios of the second inventive IPS-LCD panel become higher.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: March 29, 2011
    Assignee: LG Display Co., Ltd.
    Inventor: In-Duk Song
  • Patent number: 7880856
    Abstract: A pixel unit including a pixel electrode, a scan electrode, a common voltage electrode, a data electrode and at least one redundancy electrode is provided. During the fabricating process of the pixel unit, if a particle is simultaneously located between any two of the pixel electrode, the scan electrode and the common voltage electrode, it would cause a short circuit between the two electrodes. The pixel unit can generate a cross-shaped defect signal at the location where a short circuit happens when the pixel unit undergoes an array test or a cell test. The user can thereby quickly locate the defect and repair it.
    Type: Grant
    Filed: April 16, 2007
    Date of Patent: February 1, 2011
    Assignee: Au Optronics Corporation
    Inventors: Chung-Hung Peng, Meng-ying Hsieh, Chi-Hung Lu, Chin-Fon Chen
  • Patent number: 7852449
    Abstract: A liquid crystal display (LCD) device includes first and second substrates facing each other, a plurality of column spacers on at least one of the first and second substrates, each column spacer including first pattern second patterns, the first and second patterns being connected to each other, the second pattern having a contact surface less than the first pattern, and a liquid crystal layer between the first and second substrates.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: December 14, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Jeom Jae Kim, Hong Man Moon, Sung Hak Jo, Sang Don Yang
  • Patent number: 7847902
    Abstract: An exemplary liquid crystal display (LCD) (20) includes a plurality of scanning lines (21) that are parallel to each other and that each extend along a first direction, and a plurality of data lines (2) that are parallel to each other and that each extend along a second direction different from the first direction. Each scanning line includes a first sub-line (211), a second sub-line (212), and a plurality of connecting portions (213) electrically connecting between the first and second sub-lines. The scanning lines of the LCD each include the first and second sub-lines connected in parallel. Thus the scanning lines have a low resistance. When scanning voltages flow through the scanning lines, any voltage drop is relatively small, and all TFTs (23) of the LCD connected with a same scanning line can be driven by substantially the same voltage. Therefore, the LCD has improved display performance.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: December 7, 2010
    Assignee: Chimel Innolux Corporation
    Inventors: Chia-Wen Chang, Chin-Chang Chen
  • Patent number: 7826021
    Abstract: A method of manufacturing a substrate for a liquid crystal display. The method includes forming a plurality of first line-shaped fine grooves parallel to each other in a lengthwise direction and a plurality of second line-shaped fine grooves parallel to each other in a width direction on the substrate, forming an inorganic insulating film on the substrate including the first and second line-shaped fine grooves, forming a plurality of gate lines within the first line-shaped fine grooves, forming a plurality of data lines that contacts an upper surface of the inorganic insulating film within the second line-shaped fine grooves, and forming a passivation layer on the substrate including the data lines.
    Type: Grant
    Filed: January 12, 2010
    Date of Patent: November 2, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Kyoung Su Ha