Patents by Inventor Mitsuru Asano

Mitsuru Asano 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).

  • Patent number: 9653025
    Abstract: A display panel including pixels disposed on a substrate, where each of the pixels includes a light emitting element, and a capacitor. The capacitor of a first one of the pixels is partially overlapped, in a vertical direction, by respective pixel areas of two of the pixels. The anode of the capacitor of the first one of the pixels may be disposed closer to the substrate than a cathode of the capacitor, thereby reducing a parasitic capacitance between the capacitor and an anode of the light emitting element of one of the two pixels overlapping the capacitor.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: May 16, 2017
    Assignee: Sony Corporation
    Inventors: Mitsuru Asano, Yukihito Iida
  • Patent number: 9608053
    Abstract: Disclosed herein is an electroluminescence display panel including a pixel circuit, a signal line, a scan line, a drive power supply line, a common power supply line, a power supply line drive circuit, a high-potential power supply line, and a low-potential power supply line.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: March 28, 2017
    Assignee: Sony Corporation
    Inventors: Masatsugu Tomida, Mitsuru Asano
  • Publication number: 20170047392
    Abstract: Disclosed herein is an electroluminescence display panel including a pixel circuit, a signal line, a scan line, a drive power supply line, a common power supply line, a power supply line drive circuit, a high-potential power supply line, and a low-potential power supply line.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Inventors: Masatsugu Tomida, Mitsuru Asano
  • Publication number: 20170025495
    Abstract: A display device including a pixel array unit having a matrix of pixels each configured such that an anode electrode of an organic electroluminescent element is connected to a source electrode of a drive transistor, a gate electrode of the drive transistor is connected to a source or drain electrode of a writing transistor, and a storage capacitor is connected between the gate and source electrodes of the drive transistor, scanning lines and power supply lines for individual pixel rows, and signal lines for individual pixel columns. A video signal reference potential is supplied to the signal lines for a period during which a scanning signal is supplied to the scanning lines during driving of pixels in a preceding row. During threshold correction for the drive transistor in a current pixel, the video signal reference potential and a potential of the cathode electrode of the organic electroluminescent element are equal.
    Type: Application
    Filed: October 4, 2016
    Publication date: January 26, 2017
    Inventors: Yukihito Iida, Mitsuru Asano, Katsuhide Uchino
  • Publication number: 20170018227
    Abstract: A display device having at least a plurality of pixel circuits, connected to signal lines to which data signals in accordance with luminance information are supplied, arranged in a matrix, wherein pixel circuits of odd number columns and even number columns adjacent sandwiching an axis in a column direction parallel to an arrangement direction of the signal lines have a mirror type circuit arrangement symmetric about the axis of the column direction, and there are lines different from the signal lines between signal lines of adjacent pixel circuits.
    Type: Application
    Filed: September 30, 2016
    Publication date: January 19, 2017
    Inventor: Mitsuru Asano
  • Patent number: 9508781
    Abstract: A method for manufacturing an organic electroluminescence display including multilayer structures that are each formed in a respective one of pixel areas in an effective area of a substrate and are each formed by a lower electrode, an organic layer, and an upper electrode, the organic electroluminescence display having a common electrode that electrically connects the pixel areas, the method including the steps of: forming a protective electrode and an outer-peripheral electrode that are electrically connected to the common electrode; forming the multilayer structures; and carrying out film deposition treatment involving electrification of the substrate.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: November 29, 2016
    Assignee: JOLED INC.
    Inventors: Hiroshi Fujimura, Mitsuru Asano, Toshiaki Imai
  • Patent number: 9496324
    Abstract: A display device including a pixel array unit having a matrix of pixels each configured such that an anode electrode of an organic electroluminescent element is connected to a source electrode of a drive transistor, a gate electrode of the drive transistor is connected to a source or drain electrode of a writing transistor, and a storage capacitor is connected between the gate and source electrodes of the drive transistor, scanning lines and power supply lines for individual pixel rows, and signal lines for individual pixel columns. A video signal reference potential is supplied to the signal lines for a period during which a scanning signal is supplied to the scanning lines during driving of pixels in a preceding row. During threshold correction for the drive transistor in a current pixel, the video signal reference potential and a potential of the cathode electrode of the organic electroluminescent element are equal.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: November 15, 2016
    Assignee: SONY CORPORATION
    Inventors: Yukihito Iida, Mitsuru Asano, Katsuhide Uchino
  • Publication number: 20160329394
    Abstract: Herein disclosed a display apparatus including: a pixel array having a matrix of pixel circuits each including respective electrooptical elements for determining a display brightness level and respective drive circuits for driving the electrooptical elements; wherein adjacent two of the pixel circuits are paired with each other, and each of the drive circuits of the adjacent two pixel circuits includes at least one transistor having a low-concentration source/drain region or an offset region of an offset gate structure, the electrooptical elements and the drive circuits of the adjacent two pixel circuits being laid out such that a line interconnecting a drain region and a source region of the at least one transistor extends parallel to a direction of pixel columns of the pixel circuits of the pixel array.
    Type: Application
    Filed: July 15, 2016
    Publication date: November 10, 2016
    Inventors: Mitsuru Asano, Seiichiro Jinta, Masatsugu Tomida, Hiroshi Fujimura
  • Publication number: 20160307984
    Abstract: A self-light emitting display unit capable of improving manufacturing yield is provided. Sizes of color pixel circuits corresponding to pixels for R, G, and B are respectively set unevenly within a pixel circuit according to a magnitude ratio of drive currents which allow color self-light emitting elements in the pixel to emit with a same light emission luminance. Thereby, the pattern densities of color pixel circuits respectively corresponding to the pixels for R, G, and B become even to each other, and the pattern defect rate as the whole pixel circuit is decreased.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Masatsugu Tomida, Mitsuru Asano
  • Patent number: 9460669
    Abstract: A display device having at least a plurality of pixel circuits, connected to signal lines to which data signals in accordance with luminance information are supplied, arranged in a matrix, wherein pixel circuits of odd number columns and even number columns adjacent sandwiching an axis in a column direction parallel to an arrangement direction of the signal lines have a mirror type circuit arrangement symmetric about the axis of the column direction, and there are lines different from the signal lines between signal lines of adjacent pixel circuits.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 4, 2016
    Assignee: Sony Corporation
    Inventor: Mitsuru Asano
  • Patent number: 9460654
    Abstract: A self-luminous display panel driving method for driving a self-luminous display panel of the active matrix driving type, includes the step of executing threshold value correction operation for a driving transistor divisionally in a plurality of periods within at least one of which, after a point of time of an end of a preceding correction period till a point of time of a start of a succeeding correction period, a potential to be applied to the drain electrode of the driving transistor is controlled to an intermediate potential between a first potential for lighting driving of the driving transistor and a second potential for initialization applied within a preparation period of the first one of the correction periods.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 4, 2016
    Assignee: JOLED Inc.
    Inventors: Yukihito Iida, Yutaka Mitomi, Mitsuru Asano, Tetsuo Minami, Takao Tanikame, Katsuhide Uchino
  • Patent number: 9424778
    Abstract: A drive section driving a plurality of pixel circuits by line-sequential scanning is provided. On a plurality of the pixel circuits belonging to one horizontal line, the above-described drive section performs a first preparation drive based on a first voltage in a first preparation period, then performs a second preparation drive based on the first voltage in a second preparation period, and performs writing of luminance information in a subsequent writing period. The second preparation period ends at a timing out of the first preparation periods of other horizontal lines.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: August 23, 2016
    Assignee: JOLED Inc.
    Inventors: Takuma Fujii, Masatsugu Tomida, Mitsuru Asano
  • Publication number: 20160240137
    Abstract: A display panel including pixels disposed on a substrate, where each of the pixels includes a light emitting element, and a capacitor. The capacitor of a first one of the pixels is partially overlapped, in a vertical direction, by respective pixel areas of two of the pixels. The anode of the capacitor of the first one of the pixels may be disposed closer to the substrate than a cathode of the capacitor, thereby reducing a parasitic capacitance between the capacitor and an anode of the light emitting element of one of the two pixels overlapping the capacitor.
    Type: Application
    Filed: April 27, 2016
    Publication date: August 18, 2016
    Inventors: Mitsuru Asano, Yukihito Iida
  • Publication number: 20160217730
    Abstract: An EL display panel having a pixel structure corresponding to an active-matrix drive system, the EL display panel including a current supply line configured to be connected to a plurality of pixel circuits in common, line width of an intersection part of the current supply line with a signal line being smaller than line width of the other part of the current supply line.
    Type: Application
    Filed: March 31, 2016
    Publication date: July 28, 2016
    Inventors: Takayuki Taneda, Katsuhide Uchino, Yukihito Iida, Mitsuru Asano
  • Patent number: 9397147
    Abstract: A self-light emitting display unit capable of improving manufacturing yield is provided. Sizes of color pixel circuits corresponding to pixels for R, G, and B are respectively set unevenly within a pixel circuit according to a magnitude ratio of drive currents which allow color self-light emitting elements in the pixel to emit with a same light emission luminance. Thereby, the pattern densities of color pixel circuits respectively corresponding to the pixels for R, G, and B become even to each other, and the pattern defect rate as the whole pixel circuit is decreased.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: July 19, 2016
    Assignee: Sony Corporation
    Inventors: Masatsugu Tomida, Mitsuru Asano
  • Patent number: 9368065
    Abstract: A display panel including pixels disposed on a substrate, where each of the pixels includes a light emitting element, and a capacitor. The capacitor of a first one of the pixels is partially overlapped, in a vertical direction, by respective pixel areas of two of the pixels. The anode of the capacitor of the first one of the pixels may be disposed closer to the substrate than a cathode of the capacitor, thereby reducing a parasitic capacitance between the capacitor and an anode of the light emitting element of one of the two pixels overlapping the capacitor.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: June 14, 2016
    Assignee: SONY CORPORATION
    Inventors: Mitsuru Asano, Yukihito Iida
  • Publication number: 20160118456
    Abstract: A display device including a pixel array unit having a matrix of pixels each configured such that an anode electrode of an organic electroluminescent element is connected to a source electrode of a drive transistor, a gate electrode of the drive transistor is connected to a source or drain electrode of a writing transistor, and a storage capacitor is connected between the gate and source electrodes of the drive transistor, scanning lines and power supply lines for individual pixel rows, and signal lines for individual pixel columns. A video signal reference potential is supplied to the signal lines for a period during which a scanning signal is supplied to the scanning lines during driving of pixels in a preceding row. During threshold correction for the drive transistor in a current pixel, the video signal reference potential and a potential of the cathode electrode of the organic electroluminescent element are equal.
    Type: Application
    Filed: January 6, 2016
    Publication date: April 28, 2016
    Inventors: Yukihito Iida, Mitsuru Asano, Katsuhide Uchino
  • Patent number: 9299762
    Abstract: A display device including a pixel array unit having a matrix of pixels each configured such that an anode electrode of an organic electroluminescent element is connected to a source electrode of a drive transistor, a gate electrode of the drive transistor is connected to a source or drain electrode of a writing transistor, and a storage capacitor is connected between the gate and source electrodes of the drive transistor, scanning lines and power supply lines for individual pixel rows, and signal lines for individual pixel columns. A video signal reference potential is supplied to the signal lines for a period during which a scanning signal is supplied to the scanning lines during driving of pixels in a preceding row. During threshold correction for the drive transistor in a current pixel, the video signal reference potential and a potential of the cathode electrode of the organic electroluminescent element are equal.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 29, 2016
    Assignee: SONY CORPORATION
    Inventors: Yukihito Iida, Mitsuru Asano, Katsuhide Uchino
  • Patent number: 9299287
    Abstract: A self-luminous display device includes: pixel circuits; and a drive circuit, wherein each of the pixel circuits includes a light-emitting diode, a drive transistor connected to a drive current channel of the light-emitting diode, and a holding capacitor coupled to a control node of the drive transistor, the drive circuit applies a light emission enabling bias to the light-emitting diode after correcting the drive transistor and writing a data voltage to the control node, provides, during a light emission enabled period in which the light emission enabling bias is applied, a light emission interruption period adapted to change the light emission enabling bias to a non-light emission bias with the data voltage held by the holding capacitor, and performs a light emission disabling process, adapted to reverse-bias the light-emitting diode to stop the light emission, for a constant period after the light emission enabled period.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: March 29, 2016
    Assignee: JOLED Inc.
    Inventors: Masatsugu Tomida, Mitsuru Asano
  • Patent number: 9293086
    Abstract: A display apparatus disclosed herein includes a plurality of pixel circuits each having a plurality of switches configured to receive a driving signal of a predetermined period and be controlled for opening and closing operation by the driving signal; and a drive circuit configured to control the open/closed state of the switches; the drive circuit being operable to scan the pixel circuits and open and close the switches in periods independent of each other.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 22, 2016
    Assignee: JOLED Inc.
    Inventors: Mitsuru Asano, Takao Tanikame