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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Publication number: 20230384640Abstract: A light adjustment device includes a plurality of liquid crystal cells each including a light adjustment region that polarizes light emitted from a light source, the liquid crystal cells being stacked in a direction in which the light is emitted. The liquid crystal cells each include a first substrate in which a plurality of first metal wires are provided, and a second substrate in which a plurality of second metal wires are provided and that sandwiches a liquid crystal layer with the first substrate.Type: ApplicationFiled: August 9, 2023Publication date: November 30, 2023Inventors: Takahiro OCHIAI, Shunpei TAKEUCHI, Osamu KOBAYASHI, Hiroya MORIMOTO, Takeo KOITO, Koichi NAGAO
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Publication number: 20230375887Abstract: A light adjustment device in which a plurality of liquid crystal cells each including a light adjustment region configured to polarize light emitted from a light source are stacked in a direction in which the light is emitted is disclosed. The liquid crystal cells each include a first substrate including a plurality of first drive electrodes extending in a first direction in the light adjustment region, and a second substrate sandwiching a liquid crystal layer between the first substrate and the second substrate and including a plurality of second drive electrodes extending in a second direction different from the first direction in the light adjustment region.Type: ApplicationFiled: August 4, 2023Publication date: November 23, 2023Inventors: Takahiro OCHIAI, Yukiya HIRABAYASHI, Shunpei TAKEUCHI, Osamu KOBAYASHI, Takeo KOITO, Koichi NAGAO
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Patent number: 11789327Abstract: 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: May 23, 2022Date of Patent: October 17, 2023Assignees: Japan Display Inc., Panasonic Intellectual Property Corporation of AmericaInventors: Tohru Sasaki, Takahiro Ochiai
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Publication number: 20230174678Abstract: The present invention relates to microfibrous cellulose capable of exhibiting an excellent dispersibility stability and an excellent coating suitability when added to paint. To this end, the present invention provides fibrous cellulose having a fiber width of 1,000 nm or less and containing an ionic substituent. An amount of the ionic substituent in the fibrous cellulose is 0.10 mmol/g or more and 1.50 mmol/g or less. A polymerization degree of the fibrous cellulose is 150 or more and 515 or less. When the fibrous cellulose is dispersed in a dispersion solvent containing water and isopropanol to obtain a dispersion fluid having a 7:3 mass ratio of water and isopropanol and a viscosity of 2,500 mPa·s at 23° C.Type: ApplicationFiled: April 22, 2021Publication date: June 8, 2023Applicant: OJI HOLDINGS CORPORATIONInventors: Mio YAMANAKA, Takahiro OCHIAI, Akihiro TANAKA
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Publication number: 20230104638Abstract: 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: December 5, 2022Publication date: April 6, 2023Inventors: Takahiro OCHIAI, Mitsuru GOTO, Hiroko SEHATA, Hiroyuki HIGASHIJIMA
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Patent number: 11532371Abstract: 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: GrantFiled: August 5, 2021Date of Patent: December 20, 2022Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Mitsuru Goto, Hiroko Sehata, Hiroyuki Higashijima
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Publication number: 20220283472Abstract: 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: May 23, 2022Publication date: September 8, 2022Inventors: Tohru SASAKI, Takahiro OCHIAI
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Patent number: 11385512Abstract: 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: April 26, 2021Date of Patent: July 12, 2022Assignees: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.Inventors: Tohru Sasaki, Takahiro Ochiai
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Publication number: 20220128851Abstract: According to one embodiment, a display device includes a first line which is arranged across a display portion, and includes a first end portion and a second end portion located at a non-display portion such that the display portion is located between the first and second end portions, a first switch electrically connected to the first end portion, a second switch electrically connected to the second end portion, a first terminal electrically connected to the first end portion via the first switch, and a second terminal electrically connected to the second end portion via the second switch.Type: ApplicationFiled: January 11, 2022Publication date: April 28, 2022Applicant: Japan Display Inc.Inventors: Takahiro OCHIAI, Hiroshi INAMURA, Keita SASANUMA, Kengo SHIRAGAMI
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Patent number: 11281058Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.Type: GrantFiled: March 4, 2021Date of Patent: March 22, 2022Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Motoharu Miyamoto, Masahiro Hoshiba
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Patent number: 11249363Abstract: According to one embodiment, a display device includes a first line which is arranged across a display portion, and includes a first end portion and a second end portion located at a non-display portion such that the display portion is located between the first and second end portions, a first switch electrically connected to the first end portion, a second switch electrically connected to the second end portion, a first terminal electrically connected to the first end portion via the first switch, and a second terminal electrically connected to the second end portion via the second switch.Type: GrantFiled: December 3, 2018Date of Patent: February 15, 2022Assignee: JAPAN DISPLAY INC.Inventors: Takahiro Ochiai, Hiroshi Inamura, Keita Sasanuma, Kengo Shiragami
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Publication number: 20210366564Abstract: 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: August 5, 2021Publication date: November 25, 2021Inventors: Takahiro OCHIAI, Mitsuru GOTO, Hiroko SEHATA, Hiroyuki HIGASHIJIMA
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Patent number: 11114177Abstract: 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: GrantFiled: June 19, 2020Date of Patent: September 7, 2021Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Mitsuru Goto, Hiroko Sehata, Hiroyuki Higashijima
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Publication number: 20210247650Abstract: 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: April 26, 2021Publication date: August 12, 2021Inventors: Tohru SASAKI, Takahiro OCHIAI
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Publication number: 20210191203Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.Type: ApplicationFiled: March 4, 2021Publication date: June 24, 2021Inventors: Takahiro OCHIAI, Motoharu Miyamoto, Masahiro Hoshiba
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Patent number: 11036098Abstract: 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: July 6, 2020Date of Patent: June 15, 2021Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Hirotaka Imayama, Masateru Morimoto
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Patent number: 11016351Abstract: 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: June 11, 2020Date of Patent: May 25, 2021Assignees: Japan Display Inc., Pansonic Liquid Crystal Display Co., Ltd.Inventors: Tohru Sasaki, Takahiro Ochiai
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Patent number: 10969638Abstract: A liquid crystal display device is provided with a thin film transistor which includes a gate electrode film that is provided in a first electrode layer located over a first insulating layer, a semiconductor film that is disposed over the gate electrode film via a second insulating layer, a drain electrode and a source electrode that are provided in a second electrode layer located over the semiconductor film and are in contact with an upper surface of the semiconductor film, and a light blocking film that is disposed under the first insulating layer. At least a part thereof overlaps the semiconductor film and the gate electrode film in a plan view. One of the drain electrode and the source electrode is connected to a gate line, and the light blocking film is electrically connected to the source electrode.Type: GrantFiled: October 26, 2018Date of Patent: April 6, 2021Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Motoharu Miyamoto, Masahiro Hoshiba
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Publication number: 20210033901Abstract: 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: October 8, 2020Publication date: February 4, 2021Inventors: Takahiro OCHIAI, Tohru SASAKI, Tetsuya NAGATA
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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