Patents Examined by Huyen L. Ngo
  • Patent number: 7852421
    Abstract: In an active matrix type liquid crystal display device, a plurality of pixels connected to thin film transistors (TFTs) are arranged in an active matrix form in a pixel portion, and driven by a driver circuit portion. The pixel portion and the driver circuit portion are formed on one of a pair of insulating substrates. A liquid crystal material is interposed between the insulating substrates. An black matrix material made of an organic resin is formed over the one insulating substrate in which the driver circuit portion has been formed. An flat film is formed on the black matrix material.
    Type: Grant
    Filed: July 7, 2009
    Date of Patent: December 14, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Takeshi Nishi
  • Patent number: 7852429
    Abstract: A display device includes a display panel, a flexible printed circuit, and a holder that holds the display panel and the flexible printed circuit. The flexible printed circuit connects to a top surface of the display panel and is bent in the vicinity of a side surface of the display panel, and a part of the flexible printed circuit is disposed between a back of the display panel and the holder, the holder having an opening or a depression in a vicinity of the side surface of the display panel. The flexible printed circuit deflects so that a portion of the part of the flexible printed circuit board projects into a space in the opening or the depression of the holder, as viewed in section.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: December 14, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Yasuaki Kondo, Tsutomu Sato, Kosuke Matsubara, Toshimitsu Matsudo
  • Patent number: 7843521
    Abstract: A liquid crystal display device with improved productivity and a manufacturing method of the same. A liquid crystal display device according to the invention comprises in a region in which a scan line and a data line intersect with each other a first substrate comprising a first thin film transistor using either an amorphous semiconductor or an organic semiconductor for a channel portion, a second substrate, a liquid crystal layer interposed between the first substrate and the second substrate, and a third substrate comprising a second thin film transistor using a crystalline semiconductor for a channel portion.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: November 30, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Yasuyuki Arai, Yasuko Watanabe
  • Patent number: 7830486
    Abstract: A pixel structure suitable for being disposed on a substrate is provided. The pixel structure includes a scan line, a data line, a thin film transistor (TFT), a primary pixel electrode, and at least one secondary pixel electrode. The scan line and the data line are disposed on the substrate. The TFT is disposed on the substrate and is electrically connected to the scan line and the data line. The primary pixel electrode is electrically connected to a drain electrode of the TFT through a contact hole. The secondary pixel electrode is disposed above the drain electrode and the drain electrode is electrically coupled to the secondary pixel electrode. Besides, a liquid crystal display (LCD) panel having the pixel structure is also provided.
    Type: Grant
    Filed: September 29, 2007
    Date of Patent: November 9, 2010
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Chih-Chung Liu, Ming-Tsung Wang, Yueh-Ping Chang
  • Patent number: 7830467
    Abstract: An active matrix substrate includes a thin film transistor, a scanning signal line, and a data signal line disposed on the substrate. A gate electrode of the transistor is connected to the scanning signal line, a source electrode thereof is connected to the data signal line, and a drain electrode thereof is connected to a pixel electrode; and an upper electrode is disposed so as to oppose a storage capacitor wiring pattern at least via an insulating layer. Within a pixel region, the upper electrode includes three divided electrodes in a region opposing the storage capacitor wiring pattern, and a central divided electrode of the three divided electrodes has the smallest area.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: November 9, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshifumi Yagi, Toshihide Tsubata, Masanori Takeuchi, Yuhko Hisada
  • Patent number: 7830492
    Abstract: A liquid crystal display includes first and second substrates. The first substrate has a first insulating substrate, and a pixel electrode formed on the first insulating substrate with a first opening pattern. The second substrate has a second insulating substrate, and a common electrode formed on the second insulating substrate with a second opening pattern. The first and the second opening patterns proceed parallel to each other while being arranged in an alternate manner. A liquid crystal material is injected between the first and the second substrates. A spacer is positioned at an end of the second opening pattern to maintain the distance between the first and the second substrates.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: November 9, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
  • Patent number: 7821609
    Abstract: In a liquid crystal display device, each pixel region formed over a liquid crystal side of one substrate out of respective substrates which are arranged to face each other with liquid crystal therebetween includes pixel electrodes to which a video signal is supplied from a drain signal line through a switching element driven in response to a scanning signal from a gate signal line and capacitive elements which are formed between the pixel electrodes and a capacitive signal line by way of a dielectric film. In such a constitution, the pixel region is divided into a plurality of regions, and video signals are supplied to respective pixel electrodes and capacitive elements in respective regions through paths which are branched from the switching element.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: October 26, 2010
    Assignee: Hitachi Displays, Ltd.
    Inventors: Ryouichi Ootsu, Takanori Nakayama, Takahiro Miyazaki
  • Patent number: 7812916
    Abstract: A spherical spacer is used as a spacer member defining a gap, and is fixed to a color filter substrate. A concave portion coming in contact with a part of the spherical spacer is formed in a position in a TFT substrate, the position being opposite to the spherical spacer. The substrates are bonded with each other by engaging the spherical spacer and the concave portion with each other.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 12, 2010
    Assignee: NEC LCD Technologies, Ltd.
    Inventor: Yoshiaki Hashimoto
  • Patent number: 7812910
    Abstract: A liquid crystal display device includes gate and data lines on a first substrate, wherein the gate lines cross the data lines to define sub-pixels, thin film transistors adjacent to where the gate lines cross the data lines, pixel electrodes connected to the thin film transistors, common electrodes at left and right sides of the sub-pixels, wherein a first parasitic capacitance between a first data line arranged at the left side of a first sub-pixel and an adjacent first common electrode is smaller than a second parasitic capacitance between a second data line arranged at the right side of the first sub-pixel and an adjacent second common electrode, and a second substrate bonded to the first substrate with a layer of liquid crystal molecules there between.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: October 12, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Do Young Lee
  • Patent number: 7808602
    Abstract: A liquid crystal display (LCD) includes a first substrate, a second substrate, and a sealing member. The sealing member is sandwiched between the first and second substrates, and forms a perimeter encircling a display area of the LCD device. After delivery of at least one drop of liquid crystal, any excessive liquid crystal trapped within the perimeter is discharged through an opening broken in the sealing member. The opening is plugged to enclose an amount of liquid crystal within the perimeter.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: October 5, 2010
    Assignee: Chimei Innolux Corporation
    Inventors: Chih-Chang Hou, Chun-Chin Huang
  • Patent number: 7808601
    Abstract: A liquid crystal display (LCD) device includes a first substrate, a second substrate, and a sealing member. The sealing member is sandwiched between the first and second substrates, and forms a perimeter encircling a display area of the LCD device. After delivery of at least one drop of liquid crystal, any excessive liquid crystal trapped within the perimeter is discharged through a discharge port in the sealing member. The discharge port is plugged with a sealant.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: October 5, 2010
    Assignee: Chimei Innolux Corporation
    Inventors: Chih-Chang Hou, Chun-Chin Huang
  • Patent number: 7808576
    Abstract: The present invention provides a backlight of a liquid crystal display device having an inclination surface on a light guide plate and preventing a breakage of a liquid crystal panel, wherein light which leaks from the inclination surface is made to return to the light guide plate and the adhesiveness of the light guide plate and a flexible printed circuit board is increased. In a liquid crystal display device having a backlight which radiates light to a liquid crystal panel, LEDs are formed on a light guide plate formed on the backlight as light emitting elements. Between the plurality of light emitting elements, a projecting portion of the light guide plate is formed, and a reflection member is formed on an adhesive sheet which adheres a projection member and a flexible printed circuit board to each other.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: October 5, 2010
    Assignees: Hitachi Displays, Ltd., Hitachi Display Devices, Ltd
    Inventors: Yoshiaki Takahashi, Hiroshi Nakamoto, Hidehiro Hanada
  • Patent number: 7808600
    Abstract: An LCD device for repairing to prevent gravity defects by forming a dual seal pattern in a non-display area of an LCD panel and storing surplus liquid crystal in an area between the dual seal patterns, which includes a liquid crystal panel including first and second substrates bonded to each other, and having a display area and non-display area, first and second seal patterns surrounding the display area and spaced apart from each other on the non-display area between the first and second substrates and defining a buffer space therebetween and a metal pattern formed on the first substrate under the first seal pattern, wherein the metal pattern is deformed by laser irradiation to form a path for liquid crystal to flow between the buffer space and the display area.
    Type: Grant
    Filed: December 20, 2006
    Date of Patent: October 5, 2010
    Assignee: LG. Display Co., Ltd.
    Inventor: Sun Ah Lee
  • Patent number: 7796211
    Abstract: An exemplary backlight module (20) includes a light guide plate (250) including a light incident surface (251), a frame (280) accommodating the light guide plate and including a side wall (281), light emitting units (270) adjacent to the light incident surface of the light guide plate, and elastic members (240). The elastic members are detachably engaged with the side wall of the frame. Each elastic member is configured to elastically urge a corresponding light emitting unit such that the light emitting unit abuts the light incident surface of the light guide plate. In other examples, each elastic member elastically urges the side wall of the frame, or elastically urges the light guide plate. A liquid crystal display device using the backlight module is also provided.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: September 14, 2010
    Assignee: Chimei Innolux Corporation
    Inventor: Chih-Chia Yu
  • Patent number: 7796202
    Abstract: A liquid crystal display device and its fabricating method are discussed. According to an embodiment, the liquid crystal display at least one signal line disposed in a display area and extending to a non-display area located outside the display area, a common line crossing the signal line in the non-display area, at least one static electricity preventing element connected between the common line and the signal line in the non-display area, and at least one static electricity preventing auxiliary electrode projected towards the signal line from the static electricity preventing element in the non-display area.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: September 14, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Soo Hwang, Bung Goo Kim, Sang Ky Jeon
  • Patent number: 7787099
    Abstract: The present invention relates to an alignment film printing mask, and more particularly, to a jig for an alignment film printing mask. A jig according to the present invention includes a plurality of supporting members each having at least one bent portion, arranged at regular intervals along a width direction of the alignment film printing mask for supporting the alignment film printing mask, at l one connection member for connecting the supporting members, and fastening units for securing the alignment film printing mask supported by the supporting members.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: August 31, 2010
    Assignee: LG Display Co., Ltd.
    Inventor: Cheol Joo Moon
  • Patent number: 7787072
    Abstract: A liquid crystal display device includes a liquid crystal display module, a circuit board, and a shield case. The circuit board is mounted on the liquid crystal display module and has a socket for receiving a power supply plug. The shield case includes an offset portion on a rear part to contain the circuit board. An opening formed with holding members for securing the socket is provided at the offset portion.
    Type: Grant
    Filed: September 4, 2007
    Date of Patent: August 31, 2010
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventors: Rui-Ye Shen, Su-Sheng Mong, Te-Hsu Wang
  • Patent number: 7782414
    Abstract: A method for fabricating an LCD device includes forming an alignment layer and an overcoat layer substantially simultaneously. The method includes, coating a mixture of an alignment layer material and an overcoat layer material on a substrate and at least partially separating the overcoat layer material and the alignment layer material by the curing the mixture.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: August 24, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Hyun Sang Chung, Young Suk Park
  • Patent number: 7777833
    Abstract: A double-side illumination apparatus includes a light source, an isotropic light guide plate including an incident plane on which light emitted from the light source is incident, an opposite plane facing the incident plane, and upper and lower surfaces through which the light is out-coupled. Isotropic micro-structures are formed on the upper and lower surfaces of the isotropic light guide plate, respectively, and first and second anisotropic layers are respectively formed on the upper and lower surfaces of the isotropic light guide plate so as to completely cover the isotropic micro-structures. Herein, the first and second anisotropic layers have different refractive indices with respect to light having first and second polarization components that are perpendicular to each other.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: August 17, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seong-mo Hwang, Dong-ho Wee, Seung-ho Nam
  • Patent number: RE41632
    Abstract: The present invention discloses a method of manufacturing a liquid crystal display device including a first photolithography process forming a gate electrode on a substrate; a second photolithography process including: a) depositing sequentially a gate insulating layer, first and second semiconductor layers, and a metal layer; b) applying a first photoresist on the metal layer; c) aligning a first photo mask with the substrate; d) light exposing and developing the first photoresist to produce a first photoresist pattern; e) etching the metal layer using a first etchant, the first etchant ashing the first photoresist pattern on a predetermined portion of the metal layer to produce a second photoresist pattern, thereby exposing the predetermined portion of the metal layer; and f) etching the gate insulating layer, the first and second semiconductor layer, and the predetermined portion of the metal layer using a second etchant according to the second photoresist pattern to form source and drain electrodes, an oh
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: September 7, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kwangjo Hwang, Changwook Han