Patents Assigned to Toshiba Mobile Display Co., Ltd.
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Publication number: 20100271572Abstract: A liquid crystal display device includes a polarizer plate attached to at least one of outer surfaces opposed to the inner surfaces of a counter substrate and an array substrate. A liquid crystal layer is interposed between the inner surfaces. Active areas are formed on the respective array substrate and the counter substrate to form a plurality of pixels in a matrix by a shield element. The shield element is formed to surround the active area on the counter substrate and extending to a corner portion of the counter substrate. A polarizer plate fiducial mark including a first mark formed on the counter substrate by the same material as the shield layer and a second mark formed of an aperture made in the shield layer is formed to check alignment error of the attached polarizer plate.Type: ApplicationFiled: November 27, 2009Publication date: October 28, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Akira YOKOGAWA
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Publication number: 20100265237Abstract: There is provided an EL display device including: a drive transistor configured to determine an electric current to be supplied to the EL element; and a capacity for retaining a gate voltage of the drive transistor, wherein a gate electrode of the drive transistor is connected to a first electrode, which is one of electrodes of the capacity, a first power source and a second power source are connected alternately to a second electrode, which is the other electrode of the capacity, a power source of a reference voltage is connected in a first period in which a signal from a source signal line is applied to the drive transistor, and an EL anodic power source is connected in a second period in which the drive transistor supplies an electric current to the EL element.Type: ApplicationFiled: April 7, 2010Publication date: October 21, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Hitoshi TSUGE
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Publication number: 20100245697Abstract: A liquid crystal display device comprises a display area including a plurality of pixels arranged in a matrix. A driving unit to drive the plurality of pixels each having a pixel switch is connected to signal lines and scan lines. An auxiliary capacitance voltage is interposed to a pixel electrode connected to the pixel switch through auxiliary capacitance lines arranged along the pixels in a row direction. The driving unit includes an auxiliary capacitance line driving circuit to supply a first voltage, a second voltage smaller than the first voltage and a third voltage smaller than the second voltage to the auxiliary capacitance lines. The voltage difference between the first voltage and the second voltage is smaller than that between the second voltage and the third voltage.Type: ApplicationFiled: November 27, 2009Publication date: September 30, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Ken SHIIBA, Yukio Tanaka
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Patent number: 7790612Abstract: A method for forming a wiring structure includes forming a metal layer on a substrate, and annealing the metal layer by irradiating the metal layer with light emitted from at least one flash tube, thereby growing crystalline grains of the metal layer.Type: GrantFiled: September 14, 2006Date of Patent: September 7, 2010Assignees: Toshiba Mobile Display Co., Ltd., Sharp Kabushiki KaishaInventors: Hiroki Nakamura, Masaki Kado, Shigeru Aomori
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Publication number: 20100214261Abstract: A liquid crystal display device includes a pixel array substrate having signal lines and scan lines arranged in a matrix, and pixel circuits arranged at intersections of the signal and scan lines. A touch panel is attached on the counter substrate to draw pictures or characters on a display panel. A first voltage generation circuit generates an analog pixel voltage applied to the signal lines and a second voltage generation circuit generates a counter electrode voltage applied to the counter electrode. A settling adjustment circuit adjusts a settling time of at least one of the analog pixel voltage and the counter electrode voltage.Type: ApplicationFiled: February 2, 2010Publication date: August 26, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Mobile Display Co., Ltd.Inventors: Satoru YAMANAKA, Shinichi Hirota, Kazuya Arima
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Publication number: 20100201653Abstract: A liquid crystal display device includes first and second display panels each including scan lines arranged in a row direction, signal lines arranged in a column direction, and pixels arranged in a matrix at intersections of the first scan lines and the first signal lines. The first display panel and the second display panel are set in a non-display mode and in a display mode, respectively. Shift registers and buffer circuits connected to respective groups of scan lines sequentially drive respective group of scan lines in the first display panel during a vertical blanking time of the second display panel. The pixels of the first display panel are driven to refresh by writing an image signal for a black display in the first display panel.Type: ApplicationFiled: December 23, 2009Publication date: August 12, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Akihiko SAITOH, Hiroyuki KIMURA
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Publication number: 20100195014Abstract: A backlight unit includes a rectangular light guide plate including a first edge and a second edge orthogonally crossing each other. A light source arranged on a flexible substrate emits light to the first edge of the light guide plate and then the light emitted from the light source is emitted to outside from an upper surface of the light guide plate. A connection flexible substrate is connected to the flexible substrate and arranged along the second edge of the light guide plate to outside of the backlight unit. The second edge of the light guide plate facing the connection flexible substrate is cut out at an acute angle to the first edge of the light guide plate to pass around the connection flexible substrate.Type: ApplicationFiled: November 2, 2009Publication date: August 5, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Tsutomu ARIHARA
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Publication number: 20100195037Abstract: A liquid crystal display device comprises an array substrate having first and second pixel electrodes arranged adjacent each other and a counter substrate having a counter electrode opposing to the first and second pixel electrodes. First and second slits are formed on the counter electrode opposing to the first and second pixel electrode so as to cross the first and second pixel electrode, respectively. The counter electrode is separated into a first counter electrode portion and a second counter electrode portion by the first and second slits. A connecting counter electrode portion is arranged between the first and second slits to connect the first and second counter electrode portions. A columnar spacer is arranged between the first and second slits opposing to the connecting counter electrode portion to form a cell gap between the array substrate and the counter substrate.Type: ApplicationFiled: December 30, 2009Publication date: August 5, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Masanori IMAKAWA, Arihiro Takeda, Nobuko Fukuoka
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Publication number: 20100156857Abstract: A display device includes a display cell including a display region and a frame region surrounding the display region. A driver circuit is connected to the display cell to drive the display cell and is controlled by a circuit board arranged along in a longitudinal direction of the display cell. An insulating protection sheet covers the driver circuit and the circuit board, and one end of the insulating protection sheet is fixed to the frame region of the display cell. A conductive tape is formed on the insulating protection sheet between the display region and the driver circuit along one side of the display cell, such that static charges generated in the display region are discharged to ground through the conductive tape.Type: ApplicationFiled: December 22, 2009Publication date: June 24, 2010Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MOBILE DISPLAY CO., LTD.Inventor: KENICHI NOZAKI
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Publication number: 20100141874Abstract: A liquid crystal display device having a non-rectangular display panel includes an active area which is defined by a peripheral shield layer. A plurality of pixels are formed in the active area in a matrix and typically each pixel includes a plurality of sub-pixels to display respective different colors. The pixels include a first pixel arranged in the peripheral region of the active area and a second pixel arranged at an inner region. A part of the first pixel located in a peripheral region of the active area is covered with the peripheral shield layer. The thickness of the color filter layer arranged in the first pixel where the peripheral shield layer overlaps with the first pixel is smaller than that of a same color filter arranged in the second pixel having a larger effective display area than that of the first pixel area.Type: ApplicationFiled: July 23, 2009Publication date: June 10, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Shin MORITA
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Publication number: 20100128019Abstract: A liquid crystal display device includes a plurality of pixels arranged on a substrate in a matrix, a source driver circuit to supply source signals to source lines connected to each pixel arranged in a column direction and a gate driver circuit to supply gate signals to respective gate lines connected to pixels arranged in a row direction. A control circuit outputs an array control signal for a partial display to a receiver circuit that receives a partial display start address to specify a gate line for starting a partial display and a partial display end address to specify a gate line for ending the partial display. A decoder circuit outputs a control signal to control a range of the gate lines driven by the gate driver circuit.Type: ApplicationFiled: November 25, 2009Publication date: May 27, 2010Applicants: Kabushiki Kaisha Toshiba, Toshiba Mobile Display Co., Ltd.Inventor: Kenji HARADA
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Publication number: 20100109990Abstract: A liquid crystal display device includes a pair of substrates, a plurality of pixels arranged in a matrix and a static memory formed on the substrates. A bit signal corresponding to an image data is written and held in a static memory in the pixel. The polarity of the input bit signal is controlled. A liquid crystal voltage supplied to a liquid crystal layer arranged between the pair of substrates is generated by the bit signal. The polarity of the bit signal is controlled to alternate the liquid crystal voltage, and a transmittance of the liquid crystal layer is changed by supplying the alternated liquid crystal voltage.Type: ApplicationFiled: October 30, 2009Publication date: May 6, 2010Applicants: Kabushi Kaisha Toshiba, Toshiba Mobile Display Co., Ltd.Inventor: Kenji HARADA
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Publication number: 20100090589Abstract: An organic EL display comprises an electrode layer including reflecting film; a counter electrode provided in front of said electrode layer; and an organic material layer including a light emitting layer provided between said electrode layer and said counter electrode; wherein said counter electrode includes a first conductive electrode and a second conductive electrode which is provided in front of said first conductive electrode, said first conductive electrode is made of silver (Ag) or an alloy of silver and magnesium (MgAg) whose principal element is silver (Ag), and said second conductive electrode is made of an alloy of silver and magnesium (MgAg) whose principal element is magnesium (Mg).Type: ApplicationFiled: July 13, 2009Publication date: April 15, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Yuusuke ITAGAKI, Hirofumi KUBOTA
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Publication number: 20100079065Abstract: A display device including an active area having a plurality of pixels and a peripheral area outside the active area comprises an array substrate including a plurality of transistors corresponding to said pixels each other, an organic insulation film covering said transistors in said active area and a plurality of display elements each of which includes a first electrode, a second electrode and an organic active layer therebetween over said organic insulation film; a sealing substrate disposed to be opposed to said array substrate; a seal member made of frit glass and disposed between said array substrate and said sealing substrate at a seal area in said peripheral area; wherein said organic insulation film is removed at said seal area, said array substrate includes a laminate structure of metal layer and an inorganic non-metal layer on said metal layer at said seal area and said seal member directly contacts to said inorganic non-metal layer.Type: ApplicationFiled: June 23, 2009Publication date: April 1, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Norihiko KAMIURA
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Publication number: 20100078629Abstract: An organic EL display device includes a pixel electrode which is disposed in each of first to third organic EL elements, a first light emission layer which includes a first dopant material having a first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above the pixel electrode, a second light emission layer which includes a second dopant material having a second absorbance peak and is disposed above the first light emission layer, a third light emission layer which is disposed above the second light emission layer, a counter-electrode which is disposed above the third light emission layer, and a hole transport layer which is formed of a material having an absorbance bottom on a shorter wavelength side than the first absorbance peak and the second absorbance peak in absorbance spectrum characteristics of the hole transport layer.Type: ApplicationFiled: August 5, 2009Publication date: April 1, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Shuhei YOKOYAMA, Masuyuki Oota
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Publication number: 20100078646Abstract: A display device including an active area having a plurality of pixels comprises an array substrate including a plurality of display elements disposed at said pixels respectively; a sealing substrate disposed to be opposed to said array substrate; and a seal member disposed between said array substrate and said sealing substrate and encircling said active area; wherein said seal member is made of frit glass, and a resin layer is disposed between said array substrate and said sealing substrate in said active area.Type: ApplicationFiled: June 23, 2009Publication date: April 1, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Shiro SUMITA, Motonobu AOKI, Tetsuo ISHIDA
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Publication number: 20100066967Abstract: A liquid crystal display device includes a liquid crystal display panel having an active area in which pixels are arranged in a matrix including first and second signal lines and connecting lines. The second signal lines and connecting lines extend in a column direction in the active area. The first signal lines extend in a row direction so as to cross the second signal lines and the connecting lines. The first signal lines are connected to the connecting lines through contact portions provided at the cross area where the first signal lines cross with the connecting lines interposing an insulating layer. The second signal lines and the connecting lines are pulled out from the active area to a signal supply source provided at outside of the active area without detouring in a peripheral region of the display panel.Type: ApplicationFiled: September 17, 2009Publication date: March 18, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Kazuhiro TAKAHASHI, Masanobu Nonaka, Masanori Ando, Kazuyuki Sunohara
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Publication number: 20100060814Abstract: A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer having liquid crystal molecules interposed therebetween. The liquid crystal molecules are aligned in a direction normal to a surface of the substrates under a condition where no electrical voltage is supplied between a picture electrode and a counter electrode. An alignment control device is provided at the counter substrate and configured to control the alignment of the liquid crystal molecules under a condition where an electric field is applied between the picture electrode and the counter electrode. A scanning line crossing a pixel is divided into first and second segments. The array substrate includes a connecting element to connect the first and second segments opposite the alignment control device.Type: ApplicationFiled: August 10, 2009Publication date: March 11, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Kazuyuki HARADA, Hiroyuki KIMURA
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Publication number: 20100033669Abstract: A display device has a pair of substrates arranged opposite to each other, a light modulation layer interposed between the pair of substrates, and spacers arranged between the pair of substrates to maintain a gap therebetween. A display area is formed by the pair of substrates, the modulation layer and the spacers, and includes a plurality of pixels arranged in rows and columns of a matrix. The spacers are arranged between adjacent pixels in the column direction so that an area density of the spacers continuously changes from an edge portion to a predetermined portion in the display area extending in the row direction.Type: ApplicationFiled: August 5, 2009Publication date: February 11, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Kazumi Iizawa, Tetsuya Kawamura, Tetsuo Morita
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Publication number: 20100020277Abstract: A liquid crystal display device having a non-rectangular display panel includes an active area which is defined by a peripheral shield layer. A plurality of pixels are formed in the active area in a matrix, and each pixel includes a plurality of sub-pixels to display colors different from each other. A part of the sub-pixels of peripheral pixels located in a peripheral region of the active area is covered with a peripheral shield layer. Shield elements are arranged in the sub-pixels which are not covered with the peripheral shield layer so that an effective display area of each of the sub-pixels of the peripheral pixel is substantially equal.Type: ApplicationFiled: July 23, 2009Publication date: January 28, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventor: Shin Morita