Patents Examined by Tai Duong
  • Patent number: 9196742
    Abstract: A TFT substrate (20a) includes a plurality of pixel electrodes (17a) provided in a matrix, a plurality of TFTs (5) each provided for a corresponding one of the pixel electrodes (17a), and a plurality of auxiliary capacitors (6a) each provided for a corresponding one of the pixel electrodes (17a). Each of the auxiliary capacitors (6a) includes a capacitor line (11b) made of a material identical to that of the gate electrode (11aa) of the TFT (5) and provided in a layer identical to that of the gate electrode (11aa) of the TFT (5), the gate insulating film (12) provided so as to cover the capacitor line (11b), and a corresponding one of the pixel electrodes (17a) provided on the gate insulating film (12) so as to overlap with the capacitor line (11b) and being in conduction with a drain electrode (14ca).
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yohsuke Kanzaki, Yuhichi Saitoh, Yoshiki Nakatani, Tetsuya Okamoto, Yudai Takanishi
  • Patent number: 9195104
    Abstract: A liquid crystal panel (2) is a vertical alignment type liquid crystal panel using a horizontal electric field driving system which performs display by driving a liquid crystal layer (50) interposed between substrates (10, 20) in a horizontal electric field, each pixel includes three sub-pixels (6R, 6G, and 6B), which are of red, green, and blue, comb-shaped electrodes (14, 15) include a function as a diffraction grating with the comb-shaped electrodes (14, 15) and spaces between the comb-shaped electrodes (14, 15), and pitch distances (D) between electrodes are set such that an optical diffraction efficiency for red wavelength and an optical diffraction efficiency for green wavelength are greater than an optical diffraction efficiency for blue wavelength. Thus, it is possible to provide a liquid crystal panel and a liquid crystal display apparatus having a wide viewing angle with less color change with a simple configuration.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Mitsuhiro Murata, Shuichi Kozaki, Takehisa Sakurai, Yosuke Iwata
  • Patent number: 9188787
    Abstract: A touch grating, a display device and a method of realizing stereoscopic display and touch functions. The touch grating includes: a first substrate (101); a second substrate (102), disposed in opposition to the first substrate (101); a planar electrode (103), disposed at an inner side of the first substrate (101) facing the second substrate (102); a plurality of strip-shaped electrodes (104), being parallel to each other and disposed at an inner side of the second substrate (102) facing the first substrate (101); and liquid crystal (108), disposed between the first substrate (101) and the second substrate (102) and driven by the planar electrode (103) and the strip-shaped electrodes (104), wherein wirings (105) are provided at four terminals of the planar electrode (103), respectively, and the wirings (105) provided at the four terminals are used to determine a touch position.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: November 17, 2015
    Assignee: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Junwei Wu, Shengji Yang, Haisheng Wang
  • Patent number: 9164336
    Abstract: A liquid crystal device includes a first dummy pixel and a second dummy pixel adjacent to each other in an X direction, in which width of a first portion of a scanning line between a first transistor of the first dummy pixel and a second transistor of the second dummy pixel is larger than width of a second portion of the scanning line between the second transistor and a third transistor of a pixel.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: October 20, 2015
    Assignee: Seiko Epson Corporation
    Inventor: Yusuke Kinoe
  • Patent number: 9159883
    Abstract: An array substrate includes a gate line, a data line insulated from and crossing the gate line, and a pixel connected to the gate line and the data line. The pixel includes at least one thin film transistor connected to the gate line and the data line, and a pixel electrode connected to the thin film transistor. The pixel electrode includes a trunk portion having a cross shape and a plurality of branch portions inclined to the trunk portion and spaced apart from each other. Each branch portion includes a first area extended from the trunk portion and a second area extended from the first area, and the second area has a width greater than a width of the first area.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyung-Suk Jung, KyoungTai Han
  • Patent number: 9158157
    Abstract: An LCD includes a TAC film, a PVA film, a biaxial compensation film, an LC cell, a second TAC film, a second PVA film, and a third TAC film from the incident surface to the emitting surface. The biaxial compensation film is used for providing a first retardation value and a second retardation value by adjusting thickness and by adjusting a first refractive index, a second refractive index, and a third refractive index. The second TAC film is used for providing a third retardation value by adjusting thickness and by adjusting a fourth refractive index, a fifth refractive index, and a sixth refractive index corresponding to the light in the first direction, the light in the second direction, and the light in the third direction, respectively. Leakage of light is controlled according to the first retardation value, the second retardation value, and the third retardation value in the LCD.
    Type: Grant
    Filed: September 6, 2012
    Date of Patent: October 13, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Chihtsung Kang, Bo Hai
  • Patent number: 9146424
    Abstract: Screen brightness is improved in an IPS type liquid crystal display device. A common electrode having a slit is disposed over a rectangular pixel electrode with an insulating film attached therebetween. The slit has a linear part and a bend part. The bend part is necessary for preventing pressing domain. The transmittance in the bend part is increased by making the thickness of the insulating film below the bend part of the slit to less than the thickness of the insulating film at the linear part of the slit, thereby increasing the transmittance of the entire pixel. Thus, the screen brightness can be improved.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: September 29, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Hideki Kuriyama, Hirotaka Imayama
  • Patent number: 9140936
    Abstract: A blue phase liquid crystal panel and a display device provide a transflective mode blue phase liquid crystal panel with a single cell gap so as to simplify the process. The blue phase liquid crystal panel comprises: a first substrate and a second substrate that are disposed opposite to each other so as to form a liquid crystal cell; a blue phase liquid crystal layer between the two substrates; gate lines and data lines arranged to intersect the gate lines to define pixel regions on an inner side of the first substrate. The blue phase liquid crystal panel has a single cell gap, and the pixel regions are divided into transmission regions and reflection regions. The light for display in the transmission region and the light for display in the reflection region of a same pixel region generate the same phase retardation after passing through the blue phase liquid crystal layer.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 22, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Chang Xie
  • 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: 9134579
    Abstract: A liquid crystal display device includes first and second substrates. The first substrate includes a pixel electrode having a main pixel electrode in the shape of a belt and a first alignment film covering the pixel electrode. The first alignment film is alignment processed in a first alignment treatment direction substantially in parallel with an extending direction of the main pixel electrode. The second substrate includes a common electrode arranged on both sides sandwiching the pixel electrode and extending substantially in parallel with the extending direction of the main pixel electrode. A sub-common electrode extends in a direction crossing the extending direction of the main pixel electrode on one end side of the main pixel electrode located on a starting side of the first alignment treatment direction. A second alignment film is alignment processed in a second alignment treatment direction substantially in the same direction as the first alignment treatment direction.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: September 15, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventor: Jin Hirosawa
  • Patent number: 9122097
    Abstract: A backlight system (30) includes a light emitting section (31) and an imaging optical system. The imaging optical system includes a first microlens array (MLA1) and a second microlens array (MLA2). The lenses (1A) separates the beams of light emitted from the light emitting section (31) by RGB, and causes them to be converged at a pitch same as a pitch at which the picture elements are arrayed. The lenses (2A) are provided in one-to-one correspondence to the picture elements such that the lenses (2A) have their respective focal points at positions onto which beams of light having passed through the lenses (1A) are converged. The lenses (2A) thus deflect the beams of light which have passed through the lenses (1A) in a substantially vertical direction with respect to the display surface of the liquid crystal panel.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: September 1, 2015
    Assignees: Sharp Kabushiki Kaisha, Tohoku University
    Inventors: Tatsuo Uchida, Yoshito Suzuki, Tohru Kawakami, Kazuo Sekiya, Masahiro Nishizawa, Takahiro Ishinabe, Baku Katagiri, Katsunori Ehara, Yoshihiro Hashimoto, Shoichi Ishihara, Shuichi Kozaki, Yutaka Ishii
  • Patent number: 9116379
    Abstract: An electronic display includes electrically conductive layers. An active layer is disposed between adjacent electrically conductive layers. The active layer includes cholesteric liquid crystal material. At least one transparent front substrate is disposed adjacent one of the electrically conductive layers near a front of the display. A semitransparent back layer absorbs light that passes through the active layer, reflects grey light or light of a color and is light transmitting. Electronic circuitry applies a voltage to the conductive layers that enables at least one of erasing or writing of the active layer.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: August 25, 2015
    Assignee: KENT DISPLAYS INCORPORATED
    Inventors: Clinton I. Braganza, Matthew Schlemmer, Erica N. Montbach, Asad A. Khan
  • Patent number: 9110341
    Abstract: In one embodiment, a first substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction, a sub-pixel electrode extending in the first direction, and a pixel electrode having “n” main pixel electrodes electrically connected with the sub-pixel electrode and extending in the second direction (“n” is positive integer). A second substrate includes a main common electrode extending in the second direction in parallel with the “n” main pixel electrodes, and a liquid crystal layer held between the first and second substrates and including liquid crystal molecules. The dielectric constant anisotropy ?? of the liquid crystal molecules satisfies a following relational expression with respect to a definition depending on an inter-electrode distance between the main pixel electrode and the main common electrode in the first direction. ????0.014×(definition)+(19.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 18, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Yusuke Morita, Jin Hirosawa, Hitomi Hasegawa
  • Patent number: 9104075
    Abstract: In one embodiment, a first shield electrode and a second shield electrode are arranged on a first substrate. A first source line and a second source line are arranged facing the first and second shield electrodes through an insulating layer, respectively. A first main common electrode and a second main common electrode are formed facing the first and second source lines through an insulating layer, respectively. A main pixel electrode is formed so as to locate between the first and second main common electrodes. A second substrate includes a third main common electrode and a fourth main common electrode facing the first and second main common electrodes, respectively. A liquid crystal layer is held between the first and second substrates. The first, second, third and fourth main common electrodes are set to the same electric potential.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: August 11, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Yamamoto, Tetsuya Iizuka
  • Patent number: 9086588
    Abstract: A shielding metal of an adjacent liquid crystal panel separated from a mother substrate remains at an outer end part of a terminal portion of a liquid crystal display panel. The shielding metal has a two-layered structure including first shielding metals arranged at predetermined pitches and second shielding metals arranged at predetermined pitches. An insulating layer is provided between the first and the second shielding metals. This makes it possible to prevent short-circuit in wirings on a flexible wiring substrate even if the wirings on the flexible wiring substrate are brought into contact with the first or the second shielding metal.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 21, 2015
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomokazu Ishikawa, Takanori Nakayama
  • Patent number: 9081243
    Abstract: A TFT substrate (100) is provided with TFTs disposed on a substrate (2), first insulating layers (24, 26) disposed above the TFTs, a lower layer transparent electrode (12) disposed above the first insulating layers (24, 26), a second insulating layer (28) covering the lower layer transparent electrode (12), and pixel electrodes (10) disposed on the second insulating layer (28), in which an auxiliary capacitance (Cs) is formed by means of the lower layer transparent electrode (12), the second insulating layer (28), and the pixel electrode (10). The TFT and the pixel electrode (10) are electrically connected via a contact hole (34) penetrating the first insulating layers (24, 26) and the second insulating layer (28). A connecting transparent electrode (14) is disposed within the contact hole (34).
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: July 14, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Nakazawa, Mitsunobu Miyamoto
  • Patent number: 9069216
    Abstract: A liquid crystal grating module (3) and a two dimension-three dimension switchable liquid crystal display device using the same. The liquid crystal grating module (3) comprises a first transparent electrode layer (20) and a second transparent electrode layer (50). The first transparent electrode layer (20) and the second transparent electrode layer (50) are provided with interval. The first transparent electrode layer (20) comprises a plurality of lateral electrode bars (202,204). The second transparent electrode layer (50) comprises a plurality of vertical electrode bars (502,504). The lateral electrode bars (202,204) and the vertical electrode bars (502,504) are alternately superposed on each other with interval to form a grating structure. The vertical electrode bars (502,504) have three different widths in the direction vertical to the liquid crystal display pixels.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: June 30, 2015
    Assignee: TIANMA MICRO-ELECTRONIC CO., LTD.
    Inventors: Jia Xie, Ruigai Chen, Lei Niu, Xiaoping Sun, Hui Huang
  • Patent number: 9069219
    Abstract: A source section (S) is made of a source metal (25s) provided above a gate insulating film (23) and an oxide semiconductor film (24a), and a drain section (DR) includes a low resistance portion (24ad) which is part of the oxide semiconductor film (24a), where the part includes a surface of the oxide semiconductor film (24a) opposite to the gate insulating film (23), and the resistance of the part is reduced.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: June 30, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Katsunori Misaki
  • Patent number: 9063259
    Abstract: Provided is an illuminating device capable of preventing luminance unevenness from developing therein. An illuminating device (1) includes a plurality of light-emitting boards (5), each of which includes a long wiring board (52), a plurality of light-emitting elements (51) mounted on the wiring board and clearances (53) between the adjacent light-emitting boards, and a light guide plate having a rectangular shape and arranged to guide light that enters from its end faces (71) inward and emit the light from its front face (73), wherein the plurality of light-emitting boards are aligned along each of the end faces of the light guide plate, the end faces being opposed to each other, while the clearances between the adjacent light-emitting boards on the opposed end faces do not face each other while sandwiching the light guide plate therebetween.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: June 23, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yasumori Kuromizu
  • Patent number: 9046724
    Abstract: The present invention discloses an LCD device. The LCD device includes a bezel, a light guide plate on the light source for guiding light, an optical film on the light guide plate for processing the guided light through the light guide plate, an LCD panel directly carried on the optical film, a driving chip, a FPC with metal wires, wherein the driving chip bonds with the FPC and is used for being coupled to the LCD panel via the metal wires of the FPC, and a heat sink attached between the bezel and the FPC and used for dissipating heat generated from the driving chip.
    Type: Grant
    Filed: September 3, 2012
    Date of Patent: June 2, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO. LTD.
    Inventors: Shih Hsiang Chen, Jiahe Cheng