Patents by Inventor Takahiro Ochiai
Takahiro Ochiai 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).
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Patent number: 10845651Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.Type: GrantFiled: March 23, 2020Date of Patent: November 24, 2020Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Tetsuya Nagata
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Patent number: 10831047Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: GrantFiled: October 18, 2019Date of Patent: November 10, 2020Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Yuki Kuramoto, Masahiro Hoshiba
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Publication number: 20200333672Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.Type: ApplicationFiled: July 6, 2020Publication date: October 22, 2020Inventors: Takahiro OCHIAI, Tohru SASAKI, Hirotaka IMAYAMA, Masateru MORIMOTO
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Publication number: 20200333673Abstract: To form a sufficiently large storage capacitor, a liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal held between the first substrate and the second substrate, the liquid crystal display panel having multiple pixels arranged in matrix. The first substrate has, in a transmissive display area provided in each of the pixels, a laminated structure containing a first transparent electrode, a first insulating film, a second transparent electrode, a second insulating film, and a third transparent electrode which are laminated in this order. The first transparent electrode and the second transparent electrode are electrically insulated from each other and together form a first storage capacitor through the first insulating film, and the second transparent electrode and the third transparent electrode are electrically insulated from each other and together form a second storage capacitor through the second insulating film.Type: ApplicationFiled: June 11, 2020Publication date: October 22, 2020Inventors: Tohru SASAKI, Takahiro OCHIAI
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Publication number: 20200321068Abstract: A display device including a bidirectional shift register circuit, including: a plurality of cascade-connected register circuits; various circuits for setting various nodes to various voltage levels responsive to various signals input to various terminals; and an output circuit which outputs the clock pulse as an output pulse when the voltage of the first node is high level, wherein, at the forward shift operation, the bottom dummy register circuit is not input the reset signal and the first node of the bottom dummy register circuit is reset if the initial reset circuit of the bottom dummy register circuit receives the backward trigger signal, and wherein, at the backward shift operation, the top dummy register circuit is not input the reset signal and the first node of the top dummy register circuit is reset if the initial reset circuit of the top dummy register circuit receives the forward trigger signal.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Inventors: Takahiro OCHIAI, Mitsuru GOTO, Hiroko SEHATA, Hiroyuki HIGASHIJIMA
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Patent number: 10747071Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.Type: GrantFiled: March 4, 2019Date of Patent: August 18, 2020Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Hirotaka Imayama, Masateru Morimoto
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Patent number: 10726933Abstract: A plurality of cascade-connected register circuits which comprises a bidirectional shift register include a top register circuit, a bottom register circuit, and main register circuits. The register circuit has an output circuit which outputs one of four-phase clock pulses when a voltage of a first node is an active level; a second output circuit which outputs a non-active level when a voltage of a second node is the active level; a second node reset circuit which sets the second node to the non-active level when a voltage of a second node reset terminal is the active level. The forward scan signal sets the voltage of the first node of the top register circuit to the active level, and the forward scan signal sets the voltage of the second node reset terminal of the bottom register circuit to the active level.Type: GrantFiled: January 3, 2019Date of Patent: July 28, 2020Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Mitsuru Goto, Hiroko Sehata, Hiroyuki Higashijima
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Patent number: 10718983Abstract: To form a sufficiently large storage capacitor, a liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal held between the first substrate and the second substrate, the liquid crystal display panel having multiple pixels arranged in matrix. The first substrate has, in a transmissive display area provided in each of the pixels, a laminated structure containing a first transparent electrode, a first insulating film, a second transparent electrode, a second insulating film, and a third transparent electrode which are laminated in this order. The first transparent electrode and the second transparent electrode are electrically insulated from each other and together form a first storage capacitor through the first insulating film, and the second transparent electrode and the third transparent electrode are electrically insulated from each other and together form a second storage capacitor through the second insulating film.Type: GrantFiled: July 31, 2019Date of Patent: July 21, 2020Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Tohru Sasaki, Takahiro Ochiai
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Publication number: 20200225518Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.Type: ApplicationFiled: March 23, 2020Publication date: July 16, 2020Inventors: Takahiro OCHIAI, Tohru SASAKI, Tetsuya NAGATA
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Patent number: 10642106Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.Type: GrantFiled: August 12, 2019Date of Patent: May 5, 2020Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Tetsuya Nagata
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Patent number: 10621940Abstract: A circuit block of a driving circuit of a display device includes a first transistor that has a gate being connected to a first node having an active potential during an output period, and controls electrical conduction between a first clock signal line being applied with a first clock signal and the scanning signal line, a second transistor that has a gate being connected to a second node having an active potential during a non-output period, and controls electrical conduction between the first node and an inactive potential line, and a third transistor that has a gate being connected to the first node, and controls electrical conduction between the second node and a first cyclic signal line applied with a first period signal having an active potential at the time of termination of the output period.Type: GrantFiled: December 12, 2018Date of Patent: April 14, 2020Assignee: Japan Display Inc.Inventors: Motoharu Miyamoto, Takahiro Ochiai
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Patent number: 10606384Abstract: According to an aspect, a display device includes: a display unit that has a plurality of scanning signal lines to which a scanning signal is applied; a shift register that has a plurality of transfer circuits configured in a plurality of stages that perform a shift operation for temporarily storing a shift signal that has been input and sequentially transmitting the stored shift signal to a subsequent stage in synchronization with a clock signal having a discontinued period, and outputs the scanning signal to a scanning signal line corresponding to a transfer circuit that maintains the shift signal; and a signal line that transmits a holding potential signal for maintaining a potential of the shift signal to a transfer circuit that maintains the shift signal in the discontinued period of the clock signal.Type: GrantFiled: March 2, 2017Date of Patent: March 31, 2020Assignee: Japan Display Inc.Inventors: Masayuki Koga, Yukiya Hirabayashi, Takahiro Ochiai
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Publication number: 20200050037Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: ApplicationFiled: October 18, 2019Publication date: February 13, 2020Inventors: Takahiro Ochiai, Yuki Kuramoto, Masahiro Hoshiba
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Publication number: 20190391423Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.Type: ApplicationFiled: August 12, 2019Publication date: December 26, 2019Inventors: Takahiro OCHIAI, Tohru SASAKI, Tetsuya NAGATA
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Publication number: 20190369451Abstract: According to one embodiment, an electric circuit board includes a base material, a first terminal and a second terminal formed on the base material, a first wiring formed on the base material and connected to the first terminal, a second wiring formed on the base material and connected to the second terminal, a resin layer covering the first wiring and the second wiring, and a first pattern formed on the base material, the first terminal and the second terminal being arranged along a first direction, the first pattern being located between the first terminal and the second terminal, and the first pattern overlapping the resin layer in plan view.Type: ApplicationFiled: May 30, 2019Publication date: December 5, 2019Applicant: Japan Display Inc.Inventors: Keita Sasanuma, Yasushi Nakano, Kengo Shiragami, Takahiro Ochiai
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Patent number: 10488685Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: GrantFiled: October 5, 2018Date of Patent: November 26, 2019Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Yuki Kuramoto, Masahiro Hoshiba
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Publication number: 20190353967Abstract: To form a sufficiently large storage capacitor, a liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal held between the first substrate and the second substrate, the liquid crystal display panel having multiple pixels arranged in matrix. The first substrate has, in a transmissive display area provided in each of the pixels, a laminated structure containing a first transparent electrode, a first insulating film, a second transparent electrode, a second insulating film, and a third transparent electrode which are laminated in this order. The first transparent electrode and the second transparent electrode are electrically insulated from each other and together form a first storage capacitor through the first insulating film, and the second transparent electrode and the third transparent electrode are electrically insulated from each other and together form a second storage capacitor through the second insulating film.Type: ApplicationFiled: July 31, 2019Publication date: November 21, 2019Inventors: Tohru Sasaki, Takahiro Ochiai
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Patent number: 10423034Abstract: A column for defining the interval between a TFT substrate and an opposed substrate is formed at a crossing point between a drain line and a scanning line. At the crossing point where the column is formed, the drain line is formed to have a wider width to prevent light leakage. Further, at the crossing point where the column is formed, the scanning line is formed to have a narrower width to prevent increase of capacitance between the drain line and the scanning line. The column is formed at a crossing point corresponding to a specific color, e.g., a blue pixel B, so that a difference in transmittance and in characteristic of thin film transistors due to formation of the column is initially compensated.Type: GrantFiled: June 27, 2018Date of Patent: September 24, 2019Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Tetsuya Nagata
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Patent number: 10409122Abstract: To form a sufficiently large storage capacitor, a liquid crystal display device includes a liquid crystal display panel having a first substrate, a second substrate, and a liquid crystal held between the first substrate and the second substrate, the liquid crystal display panel having multiple pixels arranged in matrix. The first substrate has, in a transmissive display area provided in each of the pixels, a laminated structure containing a first transparent electrode, a first insulating film, a second transparent electrode, a second insulating film, and a third transparent electrode which are laminated in this order. The first transparent electrode and the second transparent electrode are electrically insulated from each other and together form a first storage capacitor through the first insulating film, and the second transparent electrode and the third transparent electrode are electrically insulated from each other and together form a second storage capacitor through the second insulating film.Type: GrantFiled: December 31, 2015Date of Patent: September 10, 2019Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Tohru Sasaki, Takahiro Ochiai
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Publication number: 20190196278Abstract: The present invention realizes a bright image display by enhancing a numerical aperture of pixels. At least a portion of a pixel electrode is overlapped to a thin film transistor by way of a first insulation film, the pixel electrode is connected to an output electrode of the thin film transistor via a contact hole which is formed in the first insulation film, the counter electrode is arranged above the pixel electrode by way of a second insulation film in a state that the counter electrode is overlapped to the pixel electrode, the counter electrode is formed at a position avoiding the contact hole formed in the first insulation film as viewed in a plan view, and at least a portion of the counter electrode is overlapped to the thin film transistor.Type: ApplicationFiled: March 4, 2019Publication date: June 27, 2019Inventors: Takahiro OCHIAI, Tohru SASAKI, Hirotaka IMAYAMA, Masateru MORIMOTO