Patents by Inventor Tetsuya Iizuka

Tetsuya Iizuka has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20150162352
    Abstract: According to one embodiment, a wiring substrate includes a pad group of a first pad to supply a power source voltage of low level, a second pad to supply a power source voltage of high level, and a third pad to supply a necessary signal for displaying an image, a common line, a first connection line to connect the first pad with the common line, a second connection line to connect the second pad with the common line, and a third connection line to connect the third pad with the common line, wherein the first connection line and the second connection line are formed of polysilicon in which no impurity is doped, and the third connection line and the common line are formed of polysilicon in which an impurity is doped.
    Type: Application
    Filed: December 4, 2014
    Publication date: June 11, 2015
    Applicant: Japan Display Inc.
    Inventors: Takamitsu Fujimoto, Tetsuya Iizuka
  • Patent number: 9041827
    Abstract: The invention makes it possible to perform effective A/D conversion on pixel signals read from a pixel array part, to achieve a reduction in power consumption and reductions in the size and the price of an image pickup device as well as simplification of the construction of the device, and to realize a high-quality image output. The device includes an pixel array part having a plurality of unit pixels, a CDS (correlated double sampling) circuit, and an A/D converter. A pixel signal read from a pixel array part via a signal line is subjected to CDS processing (noise elimination processing) in the CDS circuit, and then this pixel signal is inputted into the A/D converter which performs A/D conversion on the pixel signal. The A/D converter includes a ?? modulator and a digital filter to perform highly accurate A/D conversion. The invention can also be applied to a construction in which an A/D converter is provided at the front stage of the CDS circuit.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: May 26, 2015
    Assignee: Sony Corporation
    Inventors: Hiroki Sato, Keiji Mabuchi, Nobuo Nakamura, Tetsuya Iizuka
  • Patent number: 9025101
    Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: May 5, 2015
    Assignee: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi
  • Publication number: 20150037940
    Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 5, 2015
    Applicant: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Publication number: 20140368778
    Abstract: In one embodiment, a first shield electrode and a second shield electrode are arranged on a first substrate. A first source line and a second source line are arranged facing the first and second shield electrodes through an insulating layer, respectively. A first main common electrode and a second main common electrode are formed facing the first and second source lines through an insulating layer, respectively. A main pixel electrode is formed so as to locate between the first and second main common electrodes. A second substrate includes a third main common electrode and a fourth main common electrode facing the first and second main common electrodes, respectively. A liquid crystal layer is held between the first and second substrates. The first, second, third and fourth main common electrodes are set to the same electric potential.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Applicant: JAPAN DISPLAY INC.
    Inventors: Koji YAMAMOTO, Tetsuya IIZUKA
  • Patent number: 8902397
    Abstract: In one embodiment, a liquid crystal display panel includes an array substrate and a counter substrate each having a display region and a peripheral region arranged adjacent to the display region. A resin layer is formed either one of the array substrate and the counter substrate. A protrusion in the shape of a wall is arranged on the resin layer with a gap between the protrusion and the substrate opposing the protrusion. A seal material is formed between the array substrate and the counter substrate, and arranged between a peripheral portion of the display region and the protrusion for attaching the array substrate and the counter substrate. A liquid crystal layer is formed in a surrounded region by the array substrate, the counter substrate and the seal material.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: December 2, 2014
    Assignee: Japan Display Inc.
    Inventors: Katsuhiro Hoshina, Tetsuya Iizuka
  • Patent number: 8896738
    Abstract: The device includes an pixel array part having a plurality of unit pixels, a CDS (correlated double sampling) circuit, and an A/D converter. A pixel signal read from a pixel array part via a signal line is subjected to CDS processing (noise elimination processing) in the CDS circuit, and then this pixel signal is inputted into the A/D converter which performs A/D conversion on the pixel signal. The A/D converter includes a ?? modulator and a digital filter to perform highly accurate A/D conversion. The invention can also be applied to a construction in which an A/D converter is provided at the front stage of the CDS circuit.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: November 25, 2014
    Assignee: Sony Corporation
    Inventors: Hiroki Sato, Keiji Mabuchi, Nobuo Nakamura, Tetsuya Iizuka
  • Publication number: 20140339735
    Abstract: A cyclic-olefin-based thermoplastic resin for thermal imprint to be used in the production of a sheet or a film which contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]<30. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 20, 2014
    Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
  • Patent number: 8867006
    Abstract: In one embodiment, a first shield electrode and a second shield electrode are arranged on a first substrate. A first source line and a second source line are arranged facing the first and second shield electrodes through an insulating layer, respectively. A first main common electrode and a second main common electrode are formed facing the first and second source lines through an insulating layer, respectively. A main pixel electrode is formed so as to locate between the first and second main common electrodes. A second substrate includes a third main common electrode and a fourth main common electrode facing the first and second main common electrodes, respectively. A liquid crystal layer is held between the first and second substrates. The first, second, third and fourth main common electrodes are set to the same electric potential.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: October 21, 2014
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Tetsuya Iizuka
  • Patent number: 8853610
    Abstract: An imaging device includes: a plurality of first pixels, each including a photodiode and in-pixel transistors and having a light-blocking metal film blocking part of light entering the respective first pixels; and a plurality of second pixels, each including a photodiode and in-pixel transistors and having no light-blocking metal film; and each of the photodiodes included in the first pixels or the second pixels is surrounded with a metal frame.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: October 7, 2014
    Assignee: Sony Corporation
    Inventors: Yudai Adachi, Tetsuya Iizuka
  • Patent number: 8721950
    Abstract: A resin for thermal imprint include a cyclic-olefin-based thermoplastic resin that contains at least one of skeletons represented by the following chemical equation 1 or the following chemical equation 2 in a main chain. The glass transition temperature Tg (° C.) and the value ([M]) of MFR at 260° C. satisfy the following equation 1, and [M]>10. The thermal imprint characteristics (transferability, mold release characteristic, and the like) are superior and the productivity (throughput) is improved. Tg(° C.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: May 13, 2014
    Assignees: Scivax Corporation, Maruzen Petrochemical Co., Ltd.
    Inventors: Takemori Toshifumi, Yoshiaki Takaya, Takahito Mita, Tetsuya Iizuka, Yuji Hashima, Takahisa Kusuura, Mitsuru Fujii, Takuji Taguchi, Anupam Mitra
  • Publication number: 20140071389
    Abstract: According to one embodiment, a display panel includes an array substrate and a counter substrate. The array substrate includes an inorganic insulating film, a first wiring line, a second wiring line, an organic insulating film, a slit and a moisture-proof member. The slit is formed to extend through the organic insulating film between the first wiring line and the second wiring line. The moisture-proof member is filled in the slit and is in contact with the inorganic insulating film.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 13, 2014
    Applicant: Japan Display Inc.
    Inventors: Kazuya Daishi, Tetsuya Iizuka
  • Publication number: 20140043514
    Abstract: The device includes an pixel array part having a plurality of unit pixels, a CDS (correlated double sampling) circuit, and an A/D converter. A pixel signal read from a pixel array part via a signal line is subjected to CDS processing (noise elimination processing) in the CDS circuit, and then this pixel signal is inputted into the A/D converter which performs A/D conversion on the pixel signal. The A/D converter includes a ?? modulator and a digital filter to perform highly accurate A/D conversion. The invention can also be applied to a construction in which an A/D converter is provided at the front stage of the CDS circuit.
    Type: Application
    Filed: October 15, 2013
    Publication date: February 13, 2014
    Applicant: SONY CORPORATION
    Inventors: Hiroki Sato, Keiji Mabuchi, Nobuo Nakamura, Tetsuya Iizuka
  • Publication number: 20130314635
    Abstract: An array substrate includes a gate line extending in a first direction, a source line extending in a second direction orthogonally crossing the first direction and an auxiliary capacitance line having a trunk portion extending in the first direction so as to cross the source line and a branch portion branched from the trunk portion and extending along the source line. A switching element includes a drain line arranged under the auxiliary capacitance line so as to face the trunk portion and the branch portion thereof. A pixel electrode includes a main pixel electrode extending substantially in parallel to the source line and a contact portion electrically connected with the drain line. A counter substrate includes a couple of main common electrodes extending substantially in parallel to the main pixel electrode on the both sides sandwiching the main pixel electrode.
    Type: Application
    Filed: May 17, 2013
    Publication date: November 28, 2013
    Applicant: Japan Disply Inc.
    Inventors: Arihiro TAKEDA, Jin Hirosawa, Tetsuya IIzuka, Hirokazu Morimoto
  • Patent number: 8587688
    Abstract: Solid-state image pickup device and processing method, with A/D conversion on pixel signals read from a pixel array part that effectively achieves reductions in power consumption, size and price while retaining a high-quality image output. The device includes a pixel array part, a CDS (correlated double sampling) circuit, and an A/D converter. A pixel signal read via a signal line is subjected to noise elimination processing in the CDS circuit, and is then inputted into the A/D converter. The A/D converter includes a ?? modulator and a digital filter to perform highly accurate A/D conversion. The A/D converter can also be provided at the front stage of the CDS circuit.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: November 19, 2013
    Assignee: Sony Corporation
    Inventors: Hiroki Sato, Keiji Mabuchi, Nobuo Nakamura, Tetsuya Iizuka
  • Publication number: 20130278852
    Abstract: In one embodiment, a first shield electrode and a second shield electrode are arranged on a first substrate. A first source line and a second source line are arranged facing the first and second shield electrodes through an insulating layer, respectively. A first main common electrode and a second main common electrode are formed facing the first and second source lines through an insulating layer, respectively. A main pixel electrode is formed so as to locate between the first and second main common electrodes. A second substrate includes a third main common electrode and a fourth main common electrode facing the first and second main common electrodes, respectively. A liquid crystal layer is held between the first and second substrates. The first, second, third and fourth main common electrodes are set to the same electric potential.
    Type: Application
    Filed: February 7, 2013
    Publication date: October 24, 2013
    Inventors: Koji YAMAMOTO, Tetsuya Iizuka
  • Patent number: 8547511
    Abstract: A liquid crystal display panel includes a plurality of pixels arranged in a first direction and a second direction orthogonally crossing with the first direction. A first alignment pattern is formed in the counter electrode. The first alignment pattern faces the pixel electrode and extending in the first direction. A second alignment pattern is formed in the counter electrode. The second alignment pattern also faces the pixel electrode and extends in the second direction intersecting with the first alignment pattern. An expanding alignment portion is arranged at the intersecting portion of the first alignment pattern and the second alignment pattern. The first and second alignment patterns are formed of alignment slits or alignment protrusions arranged in the counter substrate.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: October 1, 2013
    Assignee: Japan Display Central Inc.
    Inventors: Taiyo Tokuoka, Tetsuya Iizuka, Kazuya Daishi, Jin Hirosawa
  • Publication number: 20130161486
    Abstract: An imaging device includes: a plurality of first pixels, each including a photodiode and in-pixel transistors and having a light-blocking metal film blocking part of light entering the respective first pixels; and a plurality of second pixels, each including a photodiode and in-pixel transistors and having no light-blocking metal film; and each of the photodiodes included in the first pixels or the second pixels is surrounded with a metal frame.
    Type: Application
    Filed: September 11, 2012
    Publication date: June 27, 2013
    Applicant: SONY CORPORATION
    Inventors: Yudai Adachi, Tetsuya Iizuka
  • Patent number: 8462239
    Abstract: A solid-state imaging device and an electronic device that includes the solid-state imaging device prevents shifting of a photoelectric conversion region due to long-wavelength light passing to subsurface portions of the solid-state imagine device. The device include a photo diode having an upper layer of a first conductivity type formed over a second layer having an accumulation region of a second conductivity type. The upper layer is a light-receiving portion of the photodiode. A multi-stage element isolation layer is included and has a plurality of layers of the first conductivity type, such that a first lateral side of a first stage of the multi-stage layer abuts the accumulation portion, and a second stage of the multi-stage layer is separated by a width W from the accumulation region of an intermediate portion of a second conductivity type.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: June 11, 2013
    Assignee: Sony Corporation
    Inventors: Kaoru Fujisawa, Tetsuya Iizuka, Kimihiko Sato
  • Publication number: 20130038829
    Abstract: According to one embodiment, a liquid crystal display includes a first substrate including a gate wire, a source wire intersecting with the gate wire, a pixel electrode with a contact portion and a main pixel electrode extending from the contact portion, and a semiconductor layer arranged under the source wire and intersecting with the gate wire and bending under the source wire so as to extend to below the contact portion, a second substrate opposed to the array substrate, and a liquid crystal layer between the first and second substrate. The semiconductor layer is electrically connected to the source wire on one side of a position of the gate wire and to the contact portion on another side of the gate wire.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 14, 2013
    Inventors: Katsuhiro HOSHINA, Tetsuya Iizuka, Masato Nakamura, Kazuya Daishi