Patents Examined by Tai Duong
  • Patent number: 9041894
    Abstract: One of the objects of the present invention is to provide a liquid crystal display device with high transmittance or viewing angle characteristics. A liquid crystal display device of the present invention includes: a first substrate (10) which includes a pixel electrode (30); a second substrate (20) which includes a counter electrode (25); and a liquid crystal layer (21) and a spacer (40) which are provided between the first substrate (10) and the second substrate (20). The pixel electrode (30) includes a first portion which is formed by a plurality of first branch portions (34A) extending in a first direction, a second portion which is formed by a plurality of second branch portions (34B) extending in a second direction, a third portion which is formed by a plurality of third branch portions (34C) extending in a third direction, and a fourth portion which is formed by a plurality of fourth branch portions (34D) extending in a fourth direction.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: May 26, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Masahiro Yoshida
  • Patent number: 9041892
    Abstract: The present invention discloses a tape substrate for chip on film structure of a liquid crystal panel. The tape substrate is provided with plural package units of chip on film structures arranged along its longitudinal direction, and the package unit has a driver chip, input leads and output leads. The longitudinal direction of the driver chip is parallel to the longitudinal direction of the tape substrate, and the input leads and the output leads are located at the two opposite sides of the driver chip. Each package unit is set up with a short side and a long side, and the input leads are formed at the short side, while the output leads are formed at the long side. In the package units adjacent to each other, the short side of one package unit joins the long side of a next package unit. This invention further discloses a liquid crystal panel having the tape substrate.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: May 26, 2015
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Liangchan Liao, Poshen Lin, Yu Wu
  • Patent number: 9036116
    Abstract: A liquid crystal display device includes a TFT substrate having a display area in which pixels are arranged, and a terminal portion, a counter substrate disposed opposite to the TFT substrate, a sealing material formed in a periphery to bond the TFT and counter substrates together, and with a liquid crystal layer interposed between an orientation film formed on the TFT substrate and an orientation film formed on the counter substrate. A first, second, or third color filter is formed corresponding to each of the pixels in the display area of the TFT substrate, and an orientation film stopper is formed by an overlapping portion of the first, second, or third color filter at least in an area between the display area and the terminal portion of the TFT substrate so that a profile of the orientation film is defined by the orientation film stopper.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: May 19, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Jun Gotoh
  • Patent number: 9030639
    Abstract: Reduction in the reliability of a seal portion is prevented. The reduction is caused by a light shielding portion formed on the seal portion of a TFT substrate to hamper curing an ultraviolet curable sealing material. A sealing material has a two-layer structure of an ultraviolet curable sealing material that is an inner sealing material and a thermosetting and ultraviolet curable sealing material or a thermosetting sealing material that is an outer sealing material. A light shielding portion is formed on a TFT substrate under the outer sealing material, and is not formed on the TFT substrate under the inner sealing material. When ultraviolet rays are applied from the TFT substrate side, the inner sealing material is cured in a short time. The outer sealing material is then cured by heating. Thus, the overall seal portion can be sufficiently cured, and a highly reliable seal portion can be formed.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: May 12, 2015
    Assignee: Japan Display Inc.
    Inventors: Masahiro Kobayashi, Takeshi Sato
  • Patent number: 9030623
    Abstract: The present invention provides a frameless liquid crystal display device, which includes a rear enclosure, a backlight module arranged inside the rear enclosure, a mold frame arranged on the backlight module and fixedly coupled to the rear enclosure, a liquid crystal display panel arranged on the mold frame, and a surface decoration arranged at a lower end of the liquid crystal display panel. The liquid crystal display panel includes a CF substrate and a TFT substrate laminated on the CF substrate and a top polarization plate and a bottom polarization plate respectively laminated to the CF substrate and the TFT substrate. The bottom polarization plate forms projections on upper and lower ends of the liquid crystal display panel. The mold frame forms retention slots in which the projections are received to mount the liquid crystal display panel to the mold frame.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: May 12, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Gang Yu, Liuyang Yang, Pei Jia
  • Patent number: 9007536
    Abstract: A liquid crystal display is provided that includes: a first display panel including a thin film transistor and a plurality of pixel electrodes; a second display panel facing the first display panel with a cell gap therebetween; a lower resistive layer disposed on the first display panel; an upper resistive layer disposed on the second display panel; and a sensing spacer connecting the lower resistive layer and the upper resistive layer.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Mo Hwang, Hyeon Yong Jang, Jae Jin Pyun, Il Ho Lee, Moon Jung Baek
  • Patent number: 8994912
    Abstract: A transparent display device includes a cholesteric liquid crystal display (LCD) panel to display an image, a first polarized sheet arranged on one side of the cholesteric LCD panel, and a first ΒΌ phase delay sheet arranged between the first polarized sheet and the display panel.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: March 31, 2015
    Inventors: Chiachiang Hsiao, Chihwen Chen
  • Patent number: 8994910
    Abstract: In a display panel and a method of manufacturing the display panel, the display panel includes a display substrate including a first electrode and a second electrode insulated from the first electrode and disposed on the first electrode, an opposite substrate including a third electrode facing the second electrode, and a liquid crystal layer interposed between the display substrate and the opposite substrate. The liquid crystal layer includes liquid crystal molecules, a reactive mesogen polymer, and nano-rods.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: March 31, 2015
    Assignees: Samsung Display Co., Ltd., Institute for Research & Industry Cooperation, PNU
    Inventors: Soon-Joon Rho, Hyeok-Jin Lee, Ji-Hong Bae, Jun-Ha Park, Hye-Lim Jang, Tae-Hoon Yoon, Dong-Han Song, Ki-Han Kim, Jung-Wook Kim
  • Patent number: 8982303
    Abstract: A transflective type liquid crystal display comprises a first substrate with a reflective region and a transmission region. A gate region, an insulation layer and a semiconductor layer are sequentially formed on the first substrate. The semiconductor layer has a source region, a drain region and a channel region. A first dielectric layer is disposed on the semiconductor layer and has a through hole to expose a part of the drain region. A first common electrode is disposed on the first dielectric layer and the through hole to cover the exposed part of the drain region. A reflective electrode is disposed on the first dielectric layer located in the reflective region. A second dielectric layer is disposed on the first common electrode and the reflective electrode. A pixel electrode is disposed on the second dielectric layer and connected to the drain region via the through hole.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 17, 2015
    Assignee: HannStar Display Corporation
    Inventors: Chia-Hua Yu, Hsien-Tang Hu, Ko-Ruey Jen, Jui-Chi Lai
  • Patent number: 8970800
    Abstract: The present invention discloses a backplane, a backlight module, and an LCD device. A backplane comprises a heatsink plate and a supporting plate connected with the heatsink plate; the heat conductivity of the heatsink plate is larger than that of the supporting plate; the heatsink plate or the supporting plate is provided with reinforcing ribs in the joint. In the present invention, metal with good heat dispersion and common material with low cost are respectively adopted and joined according to different radiating areas of the backlight module; then, the heat dispersion is ensured and meanwhile, the cost is reduced. The reinforcing ribs are added in the joint so that the strength of the joint is enhanced and the backplane is tightened and durable.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: March 3, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yi-cheng Kuo, Gege Zhou
  • Patent number: 8970798
    Abstract: A display device includes: a first substrate; a second substrate on the first substrate and facing the first substrate, the second substrate having a first electrode on a surface thereof; a third substrate on the second substrate and facing the second substrate, the third substrate having a second electrode on a surface thereof, the second electrode facing the first electrode and configured to form an electric field between the first electrode and the second electrode; a barrier layer interposed between the second substrate and the third substrate, the barrier layer configured to selectively control transmission and blockage of light in regions thereof corresponding to each of a plurality of pixels; and a first polarizing plate on the third substrate and configured to transmit a portion of light passing through the barrier layer, the portion of light having a first phase, the barrier layer including electrochromic elements.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: March 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Seon-Hong Ahn
  • Patent number: 8964139
    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: February 26, 2014
    Date of Patent: February 24, 2015
    Assignee: LG Chem, Ltd.
    Inventor: Joon-Hyung Kim
  • Patent number: 8964156
    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: July 3, 2014
    Date of Patent: February 24, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 8958032
    Abstract: A liquid crystal display (LCD) panel, and a manufacturing method and a driving method thereof are disclosed. The LCD panel comprises: a first pixel matrix comprising a plurality of first pixel units; a second pixel matrix comprising a plurality of second pixel units; and a driving unit, being connected to the first pixel matrix and the second pixel matrix to drive the first pixel matrix and the second pixel matrix respectively, wherein the first pixel matrix and the second pixel matrix are arranged in parallel, and at least a pair of the first pixel units and the second pixel units are partially overlapped with each other to form an overlapped pixel region. In this way, the present invention can provide a high resolution and improve the product yield with the process conditions remaining unchanged.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: February 17, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Haobo Gu
  • Patent number: 8953124
    Abstract: An optical system according to an embodiment of the present invention includes a reflective imaging element having a first principal face which is struck by light emitted from a display panel, a second principal face parallel to the first principal face, and two mutually-orthogonal specular elements being perpendicular to the first principal face, and causes an image displayed on a display surface of the display panel to form an image at a position of planar symmetry with respect to the reflective imaging element as a plane of symmetry. A transparent substrate which is disposed on at least either the first principal face side or the second principal face side of the reflective imaging element is further included, and first light striking the transparent substrate is linearly polarized light, with a large proportion of p-polarized light.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: February 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kentarou Imamura, Shigeto Yoshida, Takafumi Shimatani, Hisashi Watanabe
  • Patent number: 8953108
    Abstract: The present invention discloses a stereoscopic display apparatus. The stereoscopic display apparatus comprises a display panel and a liquid crystal lens. A first electrode layer of the liquid crystal lens comprises a plurality of electrode strips arranged along a first direction and extending in a ladder form along a second direction. The present invention further discloses a liquid crystal lens. According to the present invention method, a plurality of lenticular lens units extend in a ladder form along the second direction are formed in the liquid crystal layer in 3D mode. While the 3D display effect is achieved, the crosstalk between left-eye signals and right-eye signals in 3D mode is effectively suppressed.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: February 10, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Chih-Wen Chen
  • Patent number: 8934070
    Abstract: Disclosed are a backlight assembly including a light guide plate having at least one slit, at least one light source unit disposed at a side of the light guide plate, and a lower cover which accommodates the light source unit and has at least one support coupled with the at least one slit.
    Type: Grant
    Filed: November 3, 2009
    Date of Patent: January 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung Soo Jung, Eun Serb An, Hyun Jun Jung, Dae Hyoun Byoun
  • Patent number: 8934064
    Abstract: A three-dimensional display apparatus, including a backlight module, two panels, and a synchronization device, is provided. The backlight module has a light emitting side and sequentially emits a plurality of color light. Both panels are disposed at the light emitting side, and the first panel is disposed between the backlight module and the second panel. The first panel includes a first polarizer and a first liquid crystal substrate, and the first polarizer is disposed between the backlight module and the first liquid crystal substrate. The second panel includes a second liquid crystal substrate and a second polarizer, and the second liquid crystal substrate is disposed between the second polarizer and the first panel. The synchronization device is electrically connected to the backlight module and the two liquid crystal substrates. During a frame time, the backlight module and the two liquid crystal substrates are synchronously driven by the synchronization device.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: January 13, 2015
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventors: Wen-Chih Tai, Shian-Jun Chiou, Chia-Lin Liu, Chi-Neng Mo
  • Patent number: 8928854
    Abstract: A liquid crystal lens structure and an electrical controlling liquid crystal glasses structure are disclosed. The liquid crystal lens structure includes first electrode layer, compositing layer, second electrode layer and third electrode layer. The compositing layer includes first alignment layer, first liquid crystal layer, including thin-film layer, second liquid crystal layer and second alignment layer. The first alignment layer is disposed on the first electrode layer. The first liquid crystal layer is disposed on the first alignment layer. The compositing thin-film layer includes liquid crystal and polymer material and the compositing thin-film layer is disposed on the first liquid crystal layer. The second liquid crystal layer is disposed on the compositing thin-film layer. The second alignment layer is disposed on the second liquid crystal layer. The second electrode layer is disposed on the second alignment layer. The third electrode layers are disposed on the second electrode layer.
    Type: Grant
    Filed: October 4, 2012
    Date of Patent: January 6, 2015
    Assignees: Liqxtal Technology Inc., National Chiao Tung University
    Inventors: Hung-Shan Chen, Yi-Hsin Lin
  • Patent number: 8922730
    Abstract: A thin film transistor substrate includes a plurality of gate lines, a plurality of data lines, a first and a second thin film transistor being electrically connected with a first pixel and a second pixel, respectively. The first and the second pixels are located on a first and a second side with respect to one of the plurality of gate lines, respectively. The first and the second thin film transistors are located on a first and a second side with respect to one of the plurality of data lines, respectively. The one of the plurality of data lines extends substantially perpendicular to the gate line. The one of the plurality of data lines includes line portions between gate lines adjacent to each other and bent portions circumventing the first and second gate electrodes so as not to overlap with the first and second gate electrodes.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: In-Woo Kim