Patents Assigned to Optrex Corporation
  • Patent number: 8913202
    Abstract: It is characterized in that there is provided a liquid crystal panel including a pair of transparent substrates having electrodes for liquid crystal display disposed thereon, respectively, the electrodes for liquid crystal display being made of a transparent conductive film and serving as electrodes for liquid crystal display, and a liquid crystal sandwiched between the pair of transparent substrates; and that one of the pair of transparent substrates has an electrode for a projection capacitive sensor disposed on a side thereof with the electrode for liquid crystal display disposed thereon, the electrode for a projection capacitive sensor being made of the same conductive film as the electrode for liquid crystal display and serving as an electrode for a projection capacitive sensor.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 16, 2014
    Assignee: OPTREX Corporation
    Inventors: Masao Ozeki, Tokihito Sawada, Takashi Yuchi, Kiyoshi Watanabe
  • Patent number: 8890797
    Abstract: A display device includes an illuminance sensor for detecting an illuminance in a surrounding environment, an input average luminance detection circuit for detecting an average luminance of input images, a frame insertion control circuit for producing a gray image frame and inserting the produced gray image frame into between an input image frame and its subsequently input image frame input, and an insertion luminance level generation circuit for determining a luminance of the gray image frame according to the illuminance detected by the illuminance sensor and the average luminance of the input images detected by the input average luminance detection circuit.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: November 18, 2014
    Assignee: OPTREX Corporation
    Inventor: Kenji Gondo
  • Patent number: 8804365
    Abstract: To broaden a substantial area for wiring between a display portion and a driver element, and to increase the number of wirings between the driver element and the display portion. In a driving IC 100, bumps 10, 12, 14, 16, 18, 22, 24, 26 and 28 are arrayed in a first row 110 and bumps 11, 13, 15, 17, 21, 23, 25, 27 are arrayed in a second row 120, wherein the respective bumps are disposed so that the shortest distances between forward ends of the respective bumps and a side along the array, become larger gradually from the center outward in the array.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: August 12, 2014
    Assignee: OPTREX Corporation
    Inventor: Kenji Gondo
  • Patent number: 8736531
    Abstract: A driving device drives a liquid crystal display panel in which the number of source lines is by one larger than the number of columns of pixel electrodes and in which the columns of pixel electrodes are arranged between the source lines. The driving device has a configuration in which potential output terminals, in a central region, are not connected to any source line. A voltage follower is connected to an output switching section. Additionally, potential output terminals are connected through switches to input terminals, respectively. The switch connects a first terminal to a second terminal with control signal at a high level and connects the first terminal to a third terminal with at a low level.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: May 27, 2014
    Assignee: OPTREX Corporation
    Inventor: Kenji Gondo
  • Patent number: 8717333
    Abstract: An electrostatic capacity type touch panel having on one surface of a transparent substrate, a plurality of columns of column electrodes extending in a first direction and a plurality of columns of column electrodes extending in a second direction intersecting the first direction, such column electrodes extending in the first direction and such column electrodes extending in the second direction being eclectically disconnected from each other by an electrically insulating layer provided at least in a part of each intersection region of the column electrodes, and at least one of the two intersecting column electrodes being electrically connected by a bridge wire provided in the intersection region.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 6, 2014
    Assignee: OPTREX Corporation
    Inventors: Masao Ozeki, Atsushi Iwasaki
  • Patent number: 8711319
    Abstract: A liquid crystal display device restraining display defects even in a structure having a potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of a liquid crystal material. An electrostatic charge stored in the vicinity of a liquid crystal layer of the liquid crystal display device as a result of the potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of the liquid crystal material is dispersed by employing a capacitor or an arrester connected to ground. Accordingly, discharge of the stored charge is facilitated, and occurrence of display defects is restrained.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: April 29, 2014
    Assignee: Optrex Corporation
    Inventors: Shigeru Kojima, Yutaka Nakagawa, Toru Tsukamoto, Kenji Gondo
  • Patent number: 8593607
    Abstract: The object is to make alignment of liquid crystals more uniform by reducing alignment disorder when a voltage is applied and to improve the display quality. A liquid crystal display element comprises a first electrode (122), a second electrode (141) opposed to the first electrode, and a liquid crystal layer provided between the first electrode and the second electrode and having alignment of liquid crystal in the voltage-off state being vertical alignment, wherein either one of the first electrode and the second electrode is provided with a plurality of regularly disposed L-shaped slits, and the L-shaped slits (21) are formed so that at least within an area where the first electrode and the second electrode overlap each other, the electrode provided with the slits, is divided into a plurality of rectangular sub-pixel electrodes each having connection portions at three corners for connection to adjacent sub-pixel electrodes.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: November 26, 2013
    Assignee: Optrex Corporation
    Inventor: Yuji Soda
  • Patent number: 8581123
    Abstract: A touch panel includes a plurality of first and second transparent electrodes extending in first and second directions on one side of a transparent substrate. One of a couple of adjacent electrodes of the first electrodes and a couple of adjacent electrodes of the second electrodes at each of crossing portions has no interruption while the adjacent electrodes of the other couple are interrupted. A transparent interlayer insulting film is disposed as an upper layer on the one couple at each of the crossing portions. A metal bridge electrode is an upper layer on the interlayer insulting film to connect between the adjacent electrodes of the other couple. Each of the coupling portions has a greater length than the bridge portion.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: November 12, 2013
    Assignee: OPTREX Corporation
    Inventors: Masao Ozeki, Takashi Shimada, Kiyoshi Watanabe
  • Patent number: 8350826
    Abstract: Disclosed is a capacitive touch panel device having a sensing control unit that performs a scan sequence on individual sensor electrodes to measure sensor output values. The sensing control unit exercises control to measure sensor output values, with setup performed to avoid the detection of sensitivity slope, by executing a first scan sequence on all sensor electrodes. If the result of the first scan sequence indicates that multiple points are touched, the sensing control unit exercises control to measure sensor output values again, with setup performed to allow the detection of sensitivity slope, by executing a second scan sequence on the sensor electrodes related to a plurality of touch position candidate coordinates derived from multiple point touches, and identify and eliminate erroneously detected coordinates in accordance with the sensor output values measured upon the execution of the second scan sequence and with the tendency of sensitivity slope.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: January 8, 2013
    Assignee: Optrex Corporation
    Inventor: Kiyoshi Watanabe
  • Publication number: 20120268692
    Abstract: A liquid crystal optical device comprising a pair of substrates having an electrode pair formed; a liquid crystal layer sandwiched between the substrates; an alignment layer to align the liquid crystal, provided on each of the facing surfaces of the substrates; and a polymer structure provided on the alignment layer; wherein the polymer structure is formed by curing a curable compound represented by the following formula (1), and when a voltage is not applied, liquid crystal molecules in the vicinity of an interface between the liquid crystal layer and the polymer structure have at least one direction of director different from the alignment direction by the alignment layer: A1-O—R1—O—Z—O—R2—O-A2 ??Formula (1) wherein each of A1 and A2 is independently a curable functional group to be polymerized by an external energy, each of R1 and R2 is independently selected from a linear alkylene group with carbon number of 2 to 5 which may have a methyl group or an ethyl group as a branched chain, and Z is a bivalent
    Type: Application
    Filed: October 6, 2011
    Publication date: October 25, 2012
    Applicants: OPTREX Corporation, ASAHI GLASS COMPANY, LIMITED
    Inventors: Remi KAWAKAMI, Satoshi NIIYAMA, Yutaka NAKAGAWA, Yuji SODA
  • Publication number: 20120147068
    Abstract: A display device includes an illuminance sensor for detecting an illuminance in a surrounding environment, an input average luminance detection circuit for detecting an average luminance of input images, a frame insertion control circuit for producing a gray image frame and inserting the produced gray image frame into between an input image frame and its subsequently input image frame input, and an insertion luminance level generation circuit for determining a luminance of the gray image frame according to the illuminance detected by the illuminance sensor and the average luminance of the input images detected by the input average luminance detection circuit.
    Type: Application
    Filed: February 22, 2012
    Publication date: June 14, 2012
    Applicant: OPTREX Corporation
    Inventor: Kenji GONDO
  • Publication number: 20120146942
    Abstract: A capacitive touch panel has a plurality of first transparent electrodes and a plurality of second transparent electrodes on a transparent substrate. At crossing portions between the first and second electrodes, adjacent electrodes of the second electrodes have no interruption, and adjacent electrodes of the first electrodes are interrupted. An interlayer insulating film is disposed as an upper layer on the second electrodes, and a bridge electrode is disposed as an upper layer on the interlayer insulating film to connect interrupted portions of the first electrodes at the crossing portions. The material constituting the bridge electrode contains an element that is more susceptible to oxidation than elements contained in a material constituting the second electrodes. Constant voltage is applied to the first electrodes, and a pulse voltage having a low potential equal to or higher than the potential of the first electrodes is applied to the second electrodes.
    Type: Application
    Filed: December 12, 2011
    Publication date: June 14, 2012
    Applicant: OPTREX Corporation
    Inventors: Kenta KAMOSHIDA, Kiyoshi Watanabe
  • Publication number: 20120147302
    Abstract: A vertical alignment type liquid crystal display, having a specific resistance within a range of from 1×1010 ?cm to 2×1011 ?cm, and containing a liquid crystal layer sandwiched by a substrate having a front electrode on the surface and a substrate having a back electrode, wherein the liquid crystal layer is aligned perpendicular to the electrode surface when no voltage is applied, and upon application of a voltage by multiplex driving, the liquid crystal layer in pixels undergoes an alignment change to align parallel to the substrates. By using slits as pixel dividing structures provided on the front of the electrode, one pixel is divided into a plurality of sub-pixels, such that the directions of the alignment change upon application of a voltage are different between adjacent sub-pixels interposing the slits, and the sub-pixels are formed within a range of from 50 ?m to 100 ?m.
    Type: Application
    Filed: December 8, 2011
    Publication date: June 14, 2012
    Applicant: OPTREX Corporation
    Inventors: Yutaka NAKAGAWA, Yuji Soda, Koretomo Harada
  • Publication number: 20120139874
    Abstract: It is characterized in that there is provided a liquid crystal panel including a pair of transparent substrates having electrodes for liquid crystal display disposed thereon, respectively, the electrodes for liquid crystal display being made of a transparent conductive film and serving as electrodes for liquid crystal display, and a liquid crystal sandwiched between the pair of transparent substrates; and that one of the pair of transparent substrates has an electrode for a projection capacitive sensor disposed on a side thereof with the electrode for liquid crystal display disposed thereon, the electrode for a projection capacitive sensor being made of the same conductive film as the electrode for liquid crystal display and serving as an electrode for a projection capacitive sensor.
    Type: Application
    Filed: February 14, 2012
    Publication date: June 7, 2012
    Applicant: OPTREX Corporation
    Inventors: Masao OZEKI, Tokihito Sawada, Takashi Yuchi, Kiyoshi Watanabe
  • Publication number: 20120134120
    Abstract: To broaden a substantial area for wiring between a display portion and a driver element, and to increase the number of wirings between the driver element and the display portion. In a driving IC 100, bumps 10, 12, 14, 16, 18, 22, 24, 26 and 28 are arrayed in a first row 110 and bumps 11, 13, 15, 17, 21, 23, 25, 27 are arrayed in a second row 120, wherein the respective bumps are disposed so that the shortest distances between forward ends of the respective bumps and a side along the array, become larger gradually from the center outward in the array.
    Type: Application
    Filed: November 22, 2011
    Publication date: May 31, 2012
    Applicant: OPTREX Corporation
    Inventor: Kenji GONDO
  • Publication number: 20120133577
    Abstract: A drive device for driving a liquid crystal display panel by column inversion driving, whereby power consumption is further reduced. In an output buffer 251 to apply a voltage to source wirings, in a prescribed period after initiation of driving at one frame, a bias circuit 262 gives a bias voltage to lower the driving ability of an amplifier 261, whereby a first switch 263 becomes an open state and a second switch 264 becomes a closed state. Upon termination of the prescribed period, the first switch 263 becomes a closed state and the second switch 264 becomes an open state, whereby a source wiring is driven by a voltage signal from a D-A converter.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 31, 2012
    Applicant: OPTREX Corporation
    Inventor: Kenji GONDO
  • Publication number: 20120127143
    Abstract: A driving device drives a liquid crystal display panel in which the number of source lines is by one larger than the number of columns of pixel electrodes and in which the columns of pixel electrodes are arranged between the source lines. The driving device has a configuration in which potential output terminals, in a central region, are not connected to any source line. A voltage follower is connected to an output switching section. Additionally, potential output terminals are connected through switches to input terminals, respectively. The switch connects a first terminal to a second terminal with control signal at a high level and connects the first terminal to a third terminal with at a low level.
    Type: Application
    Filed: November 14, 2011
    Publication date: May 24, 2012
    Applicant: OPTREX Corporation
    Inventor: Kenji GONDO
  • Publication number: 20120099053
    Abstract: To provide a liquid crystal display device capable of preventing light leakage when a stress is exerted during no operation in a normally black IPS mode. In a normally black IPS mode liquid crystal display device 15, a liquid crystal layer 5 is interposed between a first glass substrate 1 and a second glass substrate 2, and a third glass substrate 3 is fixed to the second glass substrate 2. At that time, a retardation layer 7 to impart to a transmitted light a phase difference corresponding to a half-wavelength of the transmitted light, is provided between the second glass substrate 2 and the third glass substrate 3. Further, a first polarizing plate 8 and a second polarizing plate 9 are provided so that the respective absorption axes are perpendicular to each other.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Applicant: OPTREX Corporation
    Inventors: Kenta Kamoshida, Takashi Shimada
  • Publication number: 20120081333
    Abstract: A touch panel includes a plurality of first and second transparent electrodes extending in first and second directions on one side of a transparent substrate. One of a couple of adjacent electrodes of the first electrodes and a couple of adjacent electrodes of the second electrodes at each of crossing portions has no interruption while the adjacent electrodes of the other couple are interrupted. A transparent interlayer insulting film is disposed as an upper layer on the one couple at each of the crossing portions. A metal bridge electrode is an upper layer on the interlayer insulting film to connect between the adjacent electrodes of the other couple. Each of the coupling portions has a greater length than the bridge portion.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 5, 2012
    Applicant: OPTREX Corporation
    Inventors: Masao OZEKI, Takashi Shimada, Kiyoshi Watanabe
  • Publication number: 20120069284
    Abstract: The object is to make alignment of liquid crystals more uniform by reducing alignment disorder when a voltage is applied and to improve the display quality. A liquid crystal display element comprises a first electrode (122), a second electrode (141) opposed to the first electrode, and a liquid crystal layer provided between the first electrode and the second electrode and having alignment of liquid crystal in the voltage-off state being vertical alignment, wherein either one of the first electrode and the second electrode is provided with a plurality of regularly disposed L-shaped slits, and the L-shaped slits (21) are formed so that at least within an area where the first electrode and the second electrode overlap each other, the electrode provided with the slits, is divided into a plurality of rectangular sub-pixel electrodes each having connection portions at three corners for connection to adjacent sub-pixel electrodes.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 22, 2012
    Applicant: OPTREX Corporation
    Inventor: Yuji SODA