Patents by Inventor Tetsuro Minemura
Tetsuro Minemura 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: 7391568Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer; a backlight apparatus arranged at one side of the couple of substrates of the liquid crystal display element; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates of the liquid crystal display element; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body having uniaxial optical anisotroType: GrantFiled: February 6, 2007Date of Patent: June 24, 2008Assignee: Hitachi, Ltd.Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Publication number: 20070133090Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer; a backlight apparatus arranged at one side of the couple of substrates of the liquid crystal display element; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates of the liquid crystal display element; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body having uniaxial optical anisotroType: ApplicationFiled: February 6, 2007Publication date: June 14, 2007Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Patent number: 7173760Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer between a couple of substrates; a backlight apparatus arranged at one side of the couple of substrates; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body having uniaxial optical anisotropy.Type: GrantFiled: September 12, 2005Date of Patent: February 6, 2007Assignee: Hitachi, Ltd.Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Publication number: 20060017860Abstract: A liquid crystal display apparatus including: a liquid crystal display element having a liquid crystal layer between a couple of substrates; a backlight apparatus arranged at one side of the couple of substrates of the liquid crystal display element; a polarizer arranged between the liquid crystal display element and the backlight apparatus; a luminous intensity distribution control element arranged at the other side of the couple of substrates of the liquid crystal display element; an analyzer arranged between the liquid crystal display element and the luminous intensity distribution control element, wherein the luminous intensity distribution control element comprises a transparent base member, a plural lenses arranged on the transparent base member, and a light absorbing layer having small opening portions substantially at focal positions of an individual lens of the plural lenses, and the transparent base member is constituted of a transparent body substantially optically isotropic or a transparent body hType: ApplicationFiled: September 12, 2005Publication date: January 26, 2006Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Patent number: 6943947Abstract: There is eliminated a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus or the like can be effectively reduced, and bright, wide viewing angle characteristics are achieved as viewed at any angle by an observer. In the light distribution control element (100) constituted of a transparent base member (104), an array of a plurality of micro-lenses (transparent beads 105) densely arranged on the transparent base member and a light absorbing layer having very small opening portions substantially at focal positions of the micro-lenses, the transparent base member is constituted of a transparent body which is substantially isotropic optically or a transparent body having uniaxial optical anisotropy.Type: GrantFiled: September 24, 2003Date of Patent: September 13, 2005Assignee: Hitachi, Ltd.Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Publication number: 20050078073Abstract: A liquid crystal display apparatus having a pair of substrates of which at least one substrate is transparent and a liquid crystal layer sandwiched between the substrates including a plurality of first scanning electrodes formed on one of the substrates, a plurality of signal electrodes intersecting in a matrix form with the plurality of first scanning electrodes, a plurality of second scanning electrodes provided along the first scanning electrodes or the signal electrodes. The display apparatus including within each of the regions surrounded by the plurality of first scanning electrodes and the plurality of signal electrodes: (a) a data holding circuit, signal electrode, and second scanning electrode, (b) a capacitor, (c) a switching device and (d) a display electrode. A drive voltage of the liquid crystal display apparatus is an alternating current voltage having a period which is shorter than a period of fetching by the display data holding circuit.Type: ApplicationFiled: December 3, 2004Publication date: April 14, 2005Inventors: Yoshiro Mikami, Tetsuro Minemura, Makoto Tsumura, Kazuhiro Kuwabara, Shinichi Komura, Tatsuya Ohkubo, Hideo Sato, Shoichi Hirota, Masaya Adachi, Kazuhito Masuda
-
Patent number: 6844968Abstract: It is possible to eliminate a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus of the like can be effectively reduced, and bright, wide viewing angle characteristics can be achieved when the display is viewed at any angle by an observer. In a light distribution control element constituted of a transparent base member, an array of a plurality of micro-lenses (transparent beads densely arrange on the transparent base member and a light absorbing layer having very small opening portions substantially at focal positions of the micro-lenses, the transparent base member is constituted of a transparent body which is substantially isotropic optically or a transparent body having uniaxial optical anisotrophy.Type: GrantFiled: August 18, 2003Date of Patent: January 18, 2005Assignee: Hitachi, Ltd.Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Patent number: 6831413Abstract: A plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.Type: GrantFiled: July 17, 2002Date of Patent: December 14, 2004Assignee: Hitachi, Ltd.Inventors: Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Patent number: 6816134Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.Type: GrantFiled: February 12, 2002Date of Patent: November 9, 2004Assignee: Hitachi, Ltd.Inventors: Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Publication number: 20040130267Abstract: In a plasma display panel of AC type, consisting of a front panel 9 provided with display electrodes 7 and a rear panel 4 provided with address electrodes 3, that displays an image by causing discharge in the discharge gas space formed between the front panel 9 and rear panel 4, a protective film 5 made of metallic oxide covering a dielectric layer 6 placed on the front panel 9 is formed as follows. The protective film 5 is formed into a structure where columnar structures are densely packed, closely with each other, extending perpendicularly to the interface between the dielectric layer 6 and the protective film 5, and more than 400 columnar structures are formed per the substrate area of 1 &mgr;m2.Type: ApplicationFiled: December 8, 2003Publication date: July 8, 2004Inventors: Hiroshi Kajiyama, Akira Katou, Ken-Ichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Publication number: 20040057110Abstract: There is eliminated a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus or the like can be effectively reduced, and bright, wide viewing angle characteristics are achieved as viewed at any angle by an observer.Type: ApplicationFiled: September 24, 2003Publication date: March 25, 2004Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Publication number: 20040051945Abstract: It is possible to eliminate a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus of the like can be effectively reduced, and bright, wide viewing angle characteristics can be achieved when the display is viewed at any angle by an observer. In a light distribution control element constituted of a transparent base member, an array of a plurality of micro-lenses (transparent beads densely arrange on the transparent base member and a light absorbing layer having very small opening portions substantially at focal positions of the micro-lenses, the transparent base member is constituted of a transparent body which is substantially isotropic optically or a transparent body having uniaxial optical anisotrophy.Type: ApplicationFiled: August 18, 2003Publication date: March 18, 2004Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Patent number: 6650472Abstract: It is possible eliminate a fringe pattern produced at the time of incidence of polarized light of a light distribution control element, in which stray light derived from outside unnecessary light in a liquid crystal display apparatus or the like can be effectively reduced, and bright, wide viewing angle characteristics can be achieved when the display is viewed at any angle by an observer. In a light distribution control element constituted of a transparent base member, an array of a plurality of micro-lenses (transparent beads) densely arranged on the transparent base member and a light absorbing layer having very small opening portions substantially at focal positions of the micro-lenses, the transparent base member is constituted of a transparent body which is substantially isotropic optically or a transparent body having uniaxial optical anisotropy.Type: GrantFiled: January 10, 2001Date of Patent: November 18, 2003Assignee: Hitachi, Ltd.Inventors: Masaya Adachi, Makoto Tsumura, Ikuo Hiyama, Tetsuro Minemura
-
Patent number: 6587164Abstract: In an active matrix type liquid crystal display device, at least material of one element, forming the connecting portion between signal transfer lines related to the scan lines and the data signal lines of the device, is an alloy of at least a chemical element selected from the group consisting of Nb, Mo, Ta, and W, with Cr, the scan lines and means for generating scan pulses are connected to each other via a first opening formed in an insulating film, the data signal lines and the means for generating image data are connected to each other via a second opening formed in an insulating film, a polycrystalline thin film, which is connected to the means for generating scan pulses, is inserted into the first opening, and a polycrystalline thin film, which is connected to the means for generating image data, is inserted into the second opening, and the polycrystalline thin film is composed of indium tin oxide, which is made of mainly indium oxide and added tin oxide, having a specific resistance of, at the utmost,Type: GrantFiled: January 18, 2001Date of Patent: July 1, 2003Assignee: Hitachi, Ltd.Inventors: Kenichi Onisawa, Kikuo Ono, Toshiki Kaneko, Kenichi Chahara, Katsunori Nakajima, Etsuko Nishimura, Takeshi Satou, Tetsuro Minemura
-
Publication number: 20020190926Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.Type: ApplicationFiled: February 12, 2002Publication date: December 19, 2002Inventors: Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Publication number: 20020190929Abstract: There is provided a plasma display panel (PDP), consisting of a front panel (10) equipped with display electrodes (8) and a rear panel (4) equipped with address electrodes (3), that displays an image by causing discharge in a small discharge space formed between the two panels; wherein there are provided two layers of protective films (5, 6), made of metallic oxide, covering the dielectric layer (7) installed on the front panel (10); the outer, upper layer (6) being formed into a layer of material with a specific surface area of 20 m2/g or more and a film thickness of 1 &mgr;m or less, exhibiting a high discharge characteristic; and the inner, lower layer (5) being formed into a layer of material with a specific surface area of 10 m2/g or less and a film thickness of 1 &mgr;m or more, exhibiting a low water-adsorption characteristic.Type: ApplicationFiled: July 17, 2002Publication date: December 19, 2002Inventors: Hiroshi Kajiyama, Akira Katou, Kenichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Patent number: 6456267Abstract: A liquid crystal display has pixels in domains surrounded by data signal lines and scanning signal lines. Each of the pixels has a voltage holding device for a positive polarity and a voltage holding device for a negative polarity, two lines of voltage holding interconnections which always apply a maximum voltage and a minimum voltage of a voltage applied to the data signal lines formed for holding the voltage, and a switching device for switching between outputs from the voltage holding devices. One time or more within one frame time period thereof, the switching is performed between the voltage holding device for a positive polarity and the voltage holding device for a negative polarity.Type: GrantFiled: November 30, 1998Date of Patent: September 24, 2002Assignee: Hitachi, Ltd.Inventors: Hideo Sato, Yoshiro Mikami, Makoto Tsumura, Tetsuro Minemura, Yoshiharu Nagae
-
Publication number: 20020121861Abstract: Provided in a plasma display panel having a protective film for electrodes improved in secondary electron emission characteristics.Type: ApplicationFiled: August 20, 2001Publication date: September 5, 2002Inventors: Akira Katou, Hiroshi Kajiyama, Kazuo Uetani, Ken-ichi Onisawa, Tetsuro Minemura, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Publication number: 20020047816Abstract: In a plasma display panel of AC type, consisting of a front panel 9 provided with display electrodes 7 and a rear panel 4 provided with address electrodes 3, that displays an image by causing discharge in the discharge gas space formed between the front panel 9 and rear panel 4, a protective film 5 made of metallic oxide covering a dielectric layer 6 placed on the front panel 9 is formed as follows. The protective film 5 is formed into a structure where columnar structures are densely packed, closely with each other, extending perpendicularly to the interface between the dielectric layer 6 and the protective film 5, and more than 400 columnar structures are formed per the substrate area of 1 &mgr;m2.Type: ApplicationFiled: September 4, 2001Publication date: April 25, 2002Inventors: Hiroshi Kajiyama, Akira Katou, Ken-ichi Onisawa, Tetsuro Minemura, Kazuo Uetani, Yasushi Ihara, Shiro Takigawa, Kouichi Nose, Isao Tokomoto, Yasuhiro Koizumi
-
Publication number: 20010002855Abstract: In an active matrix type liquid crystal display device, at least material of one element, forming the connecting portion between signal transfer lines related to the scan lines and the data signal lines of the device, is an alloy of at least a chemical element selected from the group consisting of Nb, Mo, Ta, and W, with Cr, the scan lines and means for generating scan pulses are connected to each other via a first opening formed in an insulating film, the data signal lines and the means for generating image data are connected to each other via a second opening formed in an insulating film, a polycrystalline thin film, which is connected to the means for generating scan pulses, is inserted into the first opening, and a polycrystalline thin film, which is connected to the means for generating image data, is inserted into the second opening, and the polycrystalline thin film is composed of indium tin oxide, which is made of mainly indium oxide and added tin oxide, having a specific resistance of, at the utmost,Type: ApplicationFiled: January 18, 2001Publication date: June 7, 2001Inventors: Kenichi Onisawa, Kikuo Ono, Toshiki Kaneko, Kenichi Chahara, Katsunori Nakajima, Etsuko Nishimura, Takeshi Satou, Tetsuro Minemura