Patents Assigned to Toshiba Mobile Display Co., Ltd.
  • Publication number: 20110242089
    Abstract: In one embodiment, the liquid crystal shutter is equipped with a first liquid crystal panel in the OCB mode to control the transmissivity of the light entering into left eye and a second liquid crystal panel in the OCB mode to control the transmissivity of the light entering into right eye, and a drive portion to control the transmissivity. The drive portion applies a normal voltage of a normal drive in a pulse shape and a retention voltage having a pulse shape with lower frequency than the normal voltage or lower voltage than normal voltage to the first liquid crystal panel and the second liquid crystal panel. The drive portion switches between the normal drive and the retention drive while maintaining bend alignment state.
    Type: Application
    Filed: March 29, 2011
    Publication date: October 6, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Hirohisa Miki, Shigesumi Araki, Kazuhiro Nishiyama, Tetsuya Kojima, Kenji Nakao
  • Publication number: 20110242469
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer held between the first and second substrates. The first substrate includes a first insulating substrate, and a pixel electrode and a counter electrode formed on the first insulating substrate. The second substrate includes a second insulating substrate. A first light shield layer is formed on a surface of the second insulating substrate apart from an end of the second insulating substrate opposing to the first substrate, and having a frame portion in a frame shape. Furthermore, a second light shield layer is arranged adjoining the first light shield layer extending up to the end of the second insulating substrate opposing to the first substrate. A third light shield layer to shield light is provided between the first light shield layer and second light shield layer.
    Type: Application
    Filed: March 31, 2011
    Publication date: October 6, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Tetsuya KAWAMURA, Yukio TANAKA, Toshiyuki HIGANO, Kazuyuki HARADA, Atsushi MIZUYOSHI, Yasuhiro YAMAMOTO, Junichi KOBAYASHI
  • Publication number: 20110242651
    Abstract: According to one embodiment, stereoscopic liquid crystal shutter glasses include a left-eye liquid crystal shutter and a right-eye liquid crystal shutter. Each of the left-eye liquid crystal shutter and the right-eye liquid crystal shutter has a response time not more than 5 milliseconds. Each of the left-eye liquid crystal shutter and the right-eye liquid crystal shutter has a contrast ratio not less than 40:1. The contrast ratio is a value at an angle of sight of 35 degrees in all directions.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Kazuhiro NISHIYAMA, Mitsutaka Okita, Shigesumi Araki, Toshiyuki Higano
  • Publication number: 20110242101
    Abstract: According to one embodiment, stereoscopic liquid crystal shutter glasses include a left-eye liquid crystal shutter and a right-eye liquid crystal shutter. Each of the left-eye liquid crystal shutter and the right-eye liquid crystal shutter has a response time not more than 5 milliseconds. Each of the left-eye liquid crystal shutter and the right-eye liquid crystal shutter has a contrast ratio not less than 350:1. The contrast ratio is a value at an angle of sight of 30 degrees in left direction and in right direction.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Kazuhiro NISHIYAMA, Mitsutaka Okita, Shigesumi Araki, Toshiyuki Higano
  • Publication number: 20110234947
    Abstract: In one embodiment, a liquid crystal display device includes a first substrate having a pixel electrode and a second substrate having a counter electrode. The pixel electrode includes a first pixel electrode portion in a belt-like shape extending in a first direction and a second pixel electrode portion connected with one end of the first pixel electrode portion and extending in a second direction orthogonally crossing the first direction. The counter electrode includes a first counter electrode portion in a belt-like shape extending in the first direction to form a lateral electric field between the first counter electrode portion and the first pixel electrode portion. A liquid crystal layer is held between the first substrate and the second substrate. The lateral electric field is applied to the liquid crystal layer.
    Type: Application
    Filed: March 29, 2011
    Publication date: September 29, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventor: Jin HIROSAWA
  • Publication number: 20110233576
    Abstract: According to one embodiment, an organic EL device includes a first organic EL element, a second organic EL element and a third organic EL element. The first organic EL element has a first electrode, a second electrode, and a first emitting layer. The second organic EL element has a third electrode, a fourth electrode, and a second emitting layer. At least a part of the first emitting layer extends on the second emitting layer. A third organic EL element has a fifth electrode, a sixth electrode, and a third emitting layer. At least a part of the first and the second emitting layers extends on the third emitting layer. A thickness of the first emitting layer between the first and the second electrodes is thicker than a thickness of the first emitting layer extending on the second and the third emitting layers.
    Type: Application
    Filed: January 31, 2011
    Publication date: September 29, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Satoshi OKUTANI, Norihisa Maeda, Masashi Takahashi, Takeshi Ikeda, Masuyuki Oota
  • Publication number: 20110187951
    Abstract: In one embodiment, a liquid crystal display device includes a first insulating substrate and a second insulating substrate opposing the first insulating substrate. An electric power supply line formed along a perimeter of the first insulating substrate, and an electric power supply pad is arranged at a corner portion of the first insulating substrate apart from the electric power supply line. A plurality of signal lines are formed crossing between the electric power supply line and the electric power supply pad. An insulating layer covers the signal lines, and a connection electrode is arranged on the insulating layer for connecting the electric power supply line and the electric power supply pad. At least one slit is formed in the connection electrode extending in a direction so as to cross the signal lines. An electrically conductive element connects the electric power supply pad with a counter electrode.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 4, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventor: Akira YOKOGAWA
  • Publication number: 20110181586
    Abstract: In one embodiment, a driving circuit includes first, second, third and fourth transistors each having first and second electrodes, and a control gate electrode. First and second input signals for producing alternating current voltage are inputted to the respective first electrodes of the first and second transistors. The first electrode of the third transistor and the second electrode of the fourth transistor are commonly connected with an output terminal. The second electrode of the third transistor and the first electrode of the fourth transistor are respectively connected with first and second voltage sources. The control gate electrodes of the third and fourth transistors are respectively connected with the second electrodes of the first and second transistors. The driving circuit further includes first and second potential holding devices to control the switching operation of the third and fourth transistors to output the first and second voltages.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 28, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Tetsuo MORITA, Hiroyuki Kimura
  • Patent number: 7978286
    Abstract: An illumination unit includes a light guide having an incidence surface, a frame which is spaced apart from the incidence surface of the light guide, an accommodation section which is formed between the incidence surface of the light guide and the frame, and a light source unit including light-emitting diodes, a film substrate on which the light-emitting diodes are amounted, a heat radiation member having a support portion which supports the film substrate and a reflection portion which extends from the support portion, and an adhesive tape which adheres the film substrate to the support portion and has heat radiation properties, the light source unit being accommodated in the accommodation section.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: July 12, 2011
    Assignee: Toshiba Mobile Display Co., Ltd.
    Inventors: Makoto Kono, Hiroshi Nagahama, Kenji Aoshima, Jihei Kubo
  • Publication number: 20110157504
    Abstract: In one embodiment, a liquid crystal display device having a plurality of pixels includes a first substrate having an insulating substrate, a first detection element extending in a first direction above the insulating substrate, a second detection element extending in a second direction crossing the first direction and an insulating film provided between the first and second detection circuits. A second substrate is arranged opposing to the first substrate so as to hold a liquid crystal layer therebetween. A detection circuit is provided on the first substrate to detect change of electrostatic capacitance between the first and second detection elements. At least one of the first and second detection elements is an element required for operating the liquid crystal layer.
    Type: Application
    Filed: November 23, 2010
    Publication date: June 30, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Hiroyuki KIMURA, Hiroshi Tabatake, Tetsuya Kawamura
  • Publication number: 20110149182
    Abstract: In one embodiment, a pair of liquid crystal shutter glasses include a first liquid crystal shutter and a second liquid crystal shutter. The first and second liquid crystal shutters are switched to a transmissive state by turns. The respective first and second liquid crystal shutters include a first electrode substrate and a second electrode substrate opposing the first electrode substrate. An OCB (Optically Compensated Bend) mode liquid crystal layer is held between the first and second electrode substrates. The first electrode substrate includes a first electrode and a second electrode arranged adjacent to the first electrode. The first and second electrodes respectively include a side opposing each other and a plurality of projecting portions provided to the respective opposing sides of the first and second electrodes alternately.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Tetsuo Fukami, Shigesumi Araki, Tetsuya Kojima, Toshiyuki Higano, Kenji Nakao
  • Publication number: 20110141382
    Abstract: In one embodiment, a liquid crystal shutter includes a first liquid crystal panel for left eye and a second liquid crystal panel for right eye. Each liquid crystal panel includes a pair of electrode substrates and a liquid crystal layer held between the electrode substrates. A driving circuit switches the first and second liquid crystal panels between a transmissive state and a non-transmissive state by turns by applying a voltage to the first and second liquid crystal panels while inversing the polarity of the voltage applied between the pair of the electrode substrates at least once during a period in the transmissive state.
    Type: Application
    Filed: December 10, 2010
    Publication date: June 16, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Mitsutaka OKITA, Shigesumi Araki, Emi Higano
  • Publication number: 20110134057
    Abstract: A display panel includes a first end portion and a second end portion facing each other. A face panel is arranged above the front side of the display panel including a first extending portion and a second extending portion extending to the outside from the first and second end portions of the display panel. An adhesive element is provided on the display panel along its end portions to adhere the display panel to the face panel. A frame is arranged so as to being spaced apart from the display panel having a first supporting portion and a second supporting portion to support the first and second extending portions of the face panel. The first and the second extending portions of the face panel are sandwiched between the bezel and the first and second supporting portions of the frame so that the display panel does not contact with the frame.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 9, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventor: Jihei KUBO
  • Publication number: 20110134115
    Abstract: In one embodiment, a display device includes a display panel having pixels. A first image signal for displaying two-dimensional pictures, a second image signal for displaying three-dimensional pictures, and a third image signal for displaying a black picture are written into the pixels. A control circuit writes the third image signal to the pixel of the display panel during at least one frame period when switching a first mode for displaying the two-dimensional pictures and a second mode for displaying the three-dimensional pictures.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 9, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Shigesumi Araki, Kazuhiro Nishiyama, Kenji Nakao, Tetsuo Fukami, Toshiyuki Higano, Daiichi Suzuki, Emi Higano
  • Publication number: 20110122114
    Abstract: A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer held between the array substrate and the counter substrate. A display portion having a plurality of pixels arranged in a matrix is formed of the substrates and the liquid crystal layer. Each of the pixels includes a pixel electrode and a counter electrode arranged opposing to the pixel electrode. A driving portion is formed on the array substrate to supply a pixel voltage to the pixel electrode. A correcting circuit is formed on the array substrate to correct the voltage supplied to the pixel electrode by adding a predetermined DC voltage to the voltage supplied to the pixel electrode corresponding to gradations to be displayed in the pixel.
    Type: Application
    Filed: September 8, 2010
    Publication date: May 26, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Yukio Tanaka, Tetsuya Kawamura, Kenji Nakao, Atsushi Mizuyoshi, Kazutaka Fukushima, Kazuyuki Sunohara, Hidetaka Noriyama
  • Publication number: 20110109862
    Abstract: In one embodiment, a liquid crystal display device includes a plurality of pixel electrodes arranged in a matrix of rows and columns on a first substrate. A plurality of counter electrodes extend along the pixel electrodes in the row direction. Each of the counter electrodes includes a first counter electrode opposing to the plurality of pixel electrodes through a first insulating layer and a second counter electrode opposing to the first counter electrode through a second insulating layer. The first counter electrode is electrically connected with the second counter electrode through a contact hole formed in the second insulating layer. The wiring resistance of the second counter electrode is smaller than that of the first counter electrode.
    Type: Application
    Filed: November 3, 2010
    Publication date: May 12, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Kazuyuki HARADA, Hironori Yoshinaga
  • Publication number: 20110102405
    Abstract: A liquid crystal display device includes a plurality of common electrodes arranged so as to counter pixel electrodes extending in the row direction on a substrate. First and second voltage supply lines to supply first and second voltages to the common electrodes are connected with the common electrodes through a first switch circuit. A second switch circuit is arranged between the first voltage supply line and signal lines to switch a connection between the first voltage supply line and the signal lines. A gate open circuit is connected to scan lines to simultaneously supply a signal to switch on the pixel electrodes to all the scan lines. In case the power supply of the liquid crystal display device is turned off, a control circuit starts the power OFF driving operation to set the potential of the pixel electrode and the common electrode to substantially same by switching the first and second switch circuits.
    Type: Application
    Filed: October 26, 2010
    Publication date: May 5, 2011
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventor: Kenji HARADA
  • Publication number: 20100309401
    Abstract: A liquid crystal display device includes a plurality of pixels arranged near intersections between signal lines and scan lines in a matrix to form a display area. The scan lines and signal lines extend in a row and a column directions of the pixels in the display area. A first conductive layer is arranged on an insulating substrate. A second conductive layer is arranged on the first conductive layer through an insulating layer. The second conductive layer is electrically connected to the signal line. The first conductive layer includes an opposite region opposite to the second conductive layer and is arranged to surround the display area. The opposite region includes a cut out portion in which a disconnected scan line is repaired by irradiating the cut out portion with laser.
    Type: Application
    Filed: December 30, 2009
    Publication date: December 9, 2010
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventor: Shin MORITA
  • Publication number: 20100289786
    Abstract: A liquid crystal display device includes a display portion having a first substrate, a second substrate opposing to the first substrate, a liquid crystal layer held between the first and second substrates, and a plurality of pixels arranged in a delta shape. A plurality of pixel electrodes are respectively connected to signal lines extending in a first direction via a switch. The switch is controlled by scanning lines extending in a second direction which orthogonally crosses the first direction. The signal lines extend in a space between the pixel electrodes in a meandering shape in the second direction, and two kinds of color pixels are connected with a common signal line in turn via the pixel switch.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 18, 2010
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Yukio TANAKA, Tetsuo Fukami, Emi Higano, Shigesumi Araki, Ken Shiiba
  • Publication number: 20100283385
    Abstract: According to one embodiment, an organic EL device includes a first organic EL element having a first pixel electrode, a counter-electrode, and a first organic multiplayer structure, a second organic EL element having a second pixel electrode, a counter-electrode, and a second organic multiplayer structure, a third organic EL element having a third pixel electrode, a counter-electrode, and a third organic multiplayer structure. The first organic multiplayer structure includes a first organic layer, a first hole transport layer, and a first electron transport layer. The second organic multiplayer structure includes a second organic layer, a first hole transport layer, and a first electron transport layer. The third organic multiplayer structure includes a third organic layer, a first hole transport layer, a second hole transport layer, a first electron transport layer, and a second electron transport layer.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 11, 2010
    Applicant: Toshiba Mobile Display Co., Ltd.
    Inventors: Norihisa Maeda, Takeshi Ikeda