Patents by Inventor Akinori Shiota
Akinori Shiota 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: 6661491Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: GrantFiled: June 4, 2002Date of Patent: December 9, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Patent number: 6603525Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: GrantFiled: January 25, 2002Date of Patent: August 5, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Patent number: 6600540Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: GrantFiled: June 4, 2002Date of Patent: July 29, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Publication number: 20030122767Abstract: A liquid crystal display of the present invention is adapted to perform initialization by inputting voltages with different polarities to two pixel electrodes (23á, 23â) adjacent in front and back direction. It is preferable that in the two pixel electrodes (23á, 23â) adjacent in front and back direction, the pixel electrode (23á) located on back side is provided with a first protrusion (232á) at a front side edge (231á) thereof and in the two pixel electrodes adjacent in front and back direction, the pixel electrode (23â) located on front side is provided with a second protrusion (234â) on a back side edge (233â) thereof.Type: ApplicationFiled: October 9, 2002Publication date: July 3, 2003Inventors: Kenji Nakao, Daiichi Suzuki, Yoshinori Kobayashi, Katsuyuki Arimoto, Katsuhiko Kumagawa, Ichiro Sato, Keisuke Tsuda, Hirofumi Wakemoto, Hiroyuki Yamakita, Masanori Kimura, Yoshinori Tanaka, Akinori Shiota
-
Patent number: 6583840Abstract: A liquid crystal display element comprising a liquid crystal panel which comprises a pair of substrates and liquid crystal material sealed between the pair of substrates and in which pixel electrode parts of pixel electrodes and common electrode parts of common electrodes are alternately formed on a plane of one of the pair of substrates to change alignment of liquid crystal molecules by generating a horizontal (X) electric field in the plane, wherein at least one of the pixel electrode parts and the common electrode parts has a tapered section with respect to a horizontal (X) electric field direction and are transparent. The horizontal (X) electric field causes improved display characteristics, aperture ratio and response speed.Type: GrantFiled: May 26, 2000Date of Patent: June 24, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuo Inoue, Hiroyuki Yamakita, Katsuhiko Kumagawa, Masanori Kimura, Akinori Shiota
-
Patent number: 6525798Abstract: A liquid crystal display unit including a plurality of pixels each including a plurality of common electrodes, a plurality of pixel electrodes, and a semiconductor switching element, a plurality of scanning signal lines, a plurality of video signal lines for outputting signals to the pixel electrodes. The display further includes an array substrate having the pixels, the scanning signal lines, and the video signal lines arranged on a surface thereof, a counter substrate arranged opposite the array substrate, and a liquid crystal layer sandwiched between the array substrate and the counter substrate, wherein each of the pixels includes a plurality of electrode pairs, each electrode pair including one of the common electrodes and an adjacent one of the pixel electrodes, and at least one of the electrode pairs differs from other electrode pairs in a thickness of its common electrode or a thickness of its pixel electrode.Type: GrantFiled: October 20, 2000Date of Patent: February 25, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Katsuhiko Kumagawa, Akinori Shiota, Ichiro Sato, Akio Takimoto
-
Publication number: 20020154262Abstract: A liquid crystal display comprises an array substrate in which a common electrode, a pixel electrode, a scanning signal line, a video signal line and a semiconductor switching element are provided, an opposed substrate, and a liquid crystal layer interposed between the array substrate and opposed substrate. The line width of at least either the common electrode or the pixel electrode is larger than the distance between the common electrode and the pixel electrode. The film thickness of at least either the scanning signal line or the video signal line. As a result, an in-plane electric field liquid crystal display having a wide viewing angle, high-speed response, and high image quality such as high luminance is provided.Type: ApplicationFiled: June 4, 2002Publication date: October 24, 2002Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.Inventors: Hiroyuki Yamakita, Katsuhiko Kumagawa, Kazuo Inoue, Akinori Shiota, Ichiro Sato, Hiroshi Satani, Masanori Kimura, Satoshi Asada
-
Publication number: 20020154079Abstract: A liquid crystal display device, wherein liquid crystal is driven by an electric field that is parallel to a substrate, includes a plurality of gate lines (Xm−1), (Xm) and a plurality of data lines (Yn−1), (Yn) provided such that the data lines intersect with the plurality of gate lines, switching elements (13) connected to the gates lines (Xm−1) and the data lines (Yn−1), pixel electrodes (11) connected to the data lines (Yn−1) via the switching elements (13), and opposing electrodes (12) forming pairs with the pixel electrodes (11), wherein a plurality of storage capacities (14a), (14b) for maintaining a charge of the pixel electrodes (11) are provided in a distributed arrangement associated with points where the plurality of gate lines (Xm−1), (Xm) and the plurality of data lines (Yn−1), (Yn) intersect.Type: ApplicationFiled: October 12, 2001Publication date: October 24, 2002Inventors: Akinori Shiota, Hiroyuki Yamakita, Katsuhiko Kumagawa, Sadayoshi Hotta, Yoneharu Takubo
-
Publication number: 20020149551Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: ApplicationFiled: June 4, 2002Publication date: October 17, 2002Applicant: Matsushita electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Publication number: 20020145579Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: ApplicationFiled: June 4, 2002Publication date: October 10, 2002Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Publication number: 20020105613Abstract: Disclosed is a liquid crystal display comprising: a pair of opposed substrates; a liquid crystal layer disposed between the pair of substrates, the liquid crystal layer having a display alignment state and a non-display alignment state which differ from each other and being subjected to an initialization process so as to be changed from the non-display alignment state to the display alignment state before an image is displayed; storage capacitor electrodes provided on one of the pair of substrates; pixel electrodes provided so as to overlap with the storage capacitor electrodes with an insulator interposed therebetween and disposed between the storage capacitor electrode and the liquid crystal layer, the pixel electrode having a lack portion in a region overlapping with the storage capacitor electrode; and drive means for generating potential difference between the storage capacitor electrode and the pixel electrode to thereby perform the initialization process.Type: ApplicationFiled: January 25, 2002Publication date: August 8, 2002Inventors: Hiroyuki Yamakita, Akinori Shiota, Kenji Nakao, Daiichi Suzuki, Masanori Kimura, Yoshinori Tanaka
-
Patent number: 6179400Abstract: A color filter manufacturing method colors each of many filter elements partitioned off by many frames formed on a transparent substrate by discharging an ink colored in a predetermined color into each of the frames. In coloring each of the filter elements, a discharging start position of an ink discharged into the frame partitioning off each of the filter elements is changed to color the filter element while changing an amount by which the ink overlaps the frame.Type: GrantFiled: March 28, 1996Date of Patent: January 30, 2001Assignee: Canon Kabushiki KaishaInventors: Makoto Akahira, Hiroshi Sato, Hideto Yokoi, Akinori Shiota, Hiromitsu Yamaguchi