Patents by Inventor Naofumi Kondo
Naofumi Kondo 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: 7595781Abstract: In an active-matrix liquid crystal display device, each of multiple pixels includes a first sub-pixel and a second sub-pixel, through which different voltages are applicable to a portion of the liquid crystal layer. Each of the first and second sub-pixels includes a liquid crystal capacitor defined by a counter electrode and a sub-pixel electrode that faces the counter electrode by way of the liquid crystal layer, and a storage capacitor defined by a storage capacitor electrode, an insulating layer, and a storage capacitor counter electrode. The storage capacitor electrode is electrically connected to the sub-pixel electrode, and the storage capacitor counter electrode faces the storage capacitor electrode by way of the insulating layer. The counter electrode is shared by the first and second sub-pixels and the storage capacitor counter electrodes of the first and second sub-pixels are electrically independent of each other.Type: GrantFiled: December 21, 2005Date of Patent: September 29, 2009Assignee: Sharp Kabushiki KaishaInventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Publication number: 20090021658Abstract: In an active-matrix liquid crystal display device, each of multiple pixels includes a first sub-pixel and a second sub-pixel, through which different voltages are applicable to a portion of the liquid crystal layer. Each of the first and second sub-pixels includes a liquid crystal capacitor defined by a counter electrode and a sub-pixel electrode that faces the counter electrode by way of the liquid crystal layer, and a storage capacitor defined by a storage capacitor electrode, an insulating layer, and a storage capacitor counter electrode. The storage capacitor electrode is electrically connected to the sub-pixel electrode, and the storage capacitor counter electrode faces the storage capacitor electrode by way of the insulating layer. The counter electrode is shared by the first and second sub-pixels and the storage capacitor counter electrodes of the first and second sub-pixels are electrically independent of each other.Type: ApplicationFiled: September 25, 2008Publication date: January 22, 2009Applicant: SHARP KABUSHIKI KAISHAInventors: Masanori TAKEUCHI, Nobuyoshi NAGASHIMA, Naofumi KONDO
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Patent number: 7440039Abstract: An active element substrate and an opposed substrate sandwich a liquid crystal layer to constitute a liquid crystal display device. On the active element substrate, two signal lines respectively charge a pair of pixels that are adjacent to each other in a direction parallel to scanning lines. The two signal lines are provided intensively on a pixel electrode of one of the pair of pixels. In the direction parallel to the scanning lines, a pixel electrode on which signal lines are provided, and a pixel electrode on which signal lines are not provided, are arrayed alternately. This arrangement makes it possible to reduce, while ensuring a wide process margin, the fluctuation of the potential of a terminal to be connected to a pixel electrode (the fluctuation of the potential occurs during OFF-period of an active element due to capacitances respectively provided at superimposed portions of signal lines and a pixel electrode), to simplify the arrangement of signal lines, and to improve the aperture ratio.Type: GrantFiled: January 4, 2007Date of Patent: October 21, 2008Assignee: Sharp Kabushiki KaishaInventors: Kenji Enda, Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Publication number: 20070109456Abstract: An active element substrate and an opposed substrate sandwich a liquid crystal layer to constitute a liquid crystal display device. On the active element substrate, two signal lines respectively charge a pair of pixels that are adjacent to each other in a direction parallel to scanning lines. The two signal lines are provided intensively on a pixel electrode of one of the pair of pixels. In the direction parallel to the scanning lines, a pixel electrode on which signal lines are provided, and a pixel electrode on which signal lines are not provided, are arrayed alternately. This arrangement makes it possible to reduce, while ensuring a wide process margin, the fluctuation of the potential of a terminal to be connected to a pixel electrode (the fluctuation of the potential occurs during OFF-period of an active element due to capacitances respectively provided at superimposed portions of signal lines and a pixel electrode), to simplify the arrangement of signal lines, and to improve the aperture ratio.Type: ApplicationFiled: January 4, 2007Publication date: May 17, 2007Applicant: Sharp Kabushiki KaishaInventors: Kenji Enda, Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Patent number: 7196745Abstract: An active element substrate and an opposed substrate sandwich a liquid crystal layer to constitute a liquid crystal display device. On the active element substrate, two signal lines respectively charge a pair of pixels that are adjacent to each other in a direction parallel to scanning lines. The two signal lines are provided intensively on a pixel electrode of one of the pair of pixels. In the direction parallel to the scanning lines, a pixel electrode on which signal lines are provided, and a pixel electrode on which signal lines are not provided, are arrayed alternately. This arrangement makes it possible to reduce, while ensuring a wide process margin, the fluctuation of the potential of a terminal to be connected to a pixel electrode (the fluctuation of the potential occurs during OFF-period of an active element due to capacitances respectively provided at superimposed portions of signal lines and a pixel electrode), to simplify the arrangement of signal lines, and to improve the aperture ratio.Type: GrantFiled: August 31, 2004Date of Patent: March 27, 2007Assignee: Sharp Kabushiki KaishaInventors: Kenji Enda, Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Patent number: 7050038Abstract: An active-matrix substrate includes first and second trunk lines which are arranged so as to be spaced apart from, but adjacent to, each other and are supplied with signals electrically independently. First and second groups of lines include portions that are substantially parallel to each other. A first group of connecting pads for the first trunk line is located near the second trunk line such that each line of the first group is electrically connected to the first trunk line at an associated one of the connecting pads belonging to the first group near the second trunk line. A second group of connecting pads for the second trunk line is provided near the first trunk line such that each line of the second group is electrically connected to the second trunk line at an associated one of the connecting pads of the second group near the first trunk line.Type: GrantFiled: June 12, 2003Date of Patent: May 23, 2006Assignee: Sharp Kabushiki KaishaInventors: Masahiro Matsuda, Takaharu Yamada, Nobuyoshi Nagashima, Naofumi Kondo
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Publication number: 20060097972Abstract: In an active-matrix liquid crystal display device, each of multiple pixels includes a first sub-pixel and a second sub-pixel, through which different voltages are applicable to a portion of the liquid crystal layer. Each of the first and second sub-pixels includes a liquid crystal capacitor defined by a counter electrode and a sub-pixel electrode that faces the counter electrode by way of the liquid crystal layer, and a storage capacitor defined by a storage capacitor electrode, an insulating layer, and a storage capacitor counter electrode. The storage capacitor electrode is electrically connected to the sub-pixel electrode, and the storage capacitor counter electrode faces the storage capacitor electrode by way of the insulating layer. The counter electrode is shared by the first and second sub-pixels and the storage capacitor counter electrodes of the first and second sub-pixels are electrically independent of each other.Type: ApplicationFiled: December 21, 2005Publication date: May 11, 2006Inventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Patent number: 7042541Abstract: A liquid crystal display apparatus is produced by the steps of arranging pixel electrodes, TFT devices and signal wiring on one surface of one substrate, arranging a transparent layer on a portion of one surface of a transparent substrate which portion is to be a display portion, bonding the one substrate and the transparent substrate to each other while the one surface having the pixel electrodes formed thereon faces the one surface having the transparent layer formed thereon, and injecting a liquid crystal between the substrates to form a liquid crystal layer. A fluidization path of the liquid crystal can be secured in a non-display portion, too, in which the TFT devices and the signal wiring are disposed when the liquid crystal is injected. Therefore, it is possible to shorten the injection time by increasing the liquid crystal injection speed and to improve productivity.Type: GrantFiled: September 23, 2003Date of Patent: May 9, 2006Assignee: Sharp Kabushiki KaishaInventors: Toshio Fujii, Naofumi Kondo
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Patent number: 7034789Abstract: In an active-matrix liquid crystal display device, each of multiple pixels includes a first sub-pixel and a second sub-pixel, through which different voltages are applicable to a portion of the liquid crystal layer. Each of the first and second sub-pixels includes a liquid crystal capacitor defined by a counter electrode and a sub-pixel electrode that faces the counter electrode by way of the liquid crystal layer, and a storage capacitor defined by a storage capacitor electrode, an insulating layer, and a storage capacitor counter electrode. The storage capacitor electrode is electrically connected to the sub-pixel electrode, and the storage capacitor counter electrode faces the storage capacitor electrode by way of the insulating layer. The counter electrode is shared by the first and second sub-pixels and the storage capacitor counter electrodes of the first and second sub-pixels are electrically independent of each other.Type: GrantFiled: June 13, 2003Date of Patent: April 25, 2006Assignee: Sharp Kabushiki KaishaInventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Publication number: 20050046764Abstract: An active element substrate and an opposed substrate sandwich a liquid crystal layer to constitute a liquid crystal display device. On the active element substrate, two signal lines respectively charge a pair of pixels that are adjacent to each other in a direction parallel to scanning lines. The two signal lines are provided intensively on a pixel electrode of one of the pair of pixels. In the direction parallel to the scanning lines, a pixel electrode on which signal lines are provided, and a pixel electrode on which signal lines are not provided, are arrayed alternately. This arrangement makes it possible to reduce, while ensuring a wide process margin, the fluctuation of the potential of a terminal to be connected to a pixel electrode (the fluctuation of the potential occurs during OFF-period of an active element due to capacitances respectively provided at superimposed portions of signal lines and a pixel electrode), to simplify the arrangement of signal lines, and to improve the aperture ratio.Type: ApplicationFiled: August 31, 2004Publication date: March 3, 2005Applicant: Sharp Kabushiki KaishaInventors: Kenji Enda, Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Patent number: 6862013Abstract: On a termination side of each scanning line is provided a charging switching element and a discharging switching element in parallel with each other, the charging switching element having a gate electrode which is connected with one end of a scanning auxiliary line, the other end of which is connected to a scanning line of the same stage, the discharging switching element having a gate electrode which is connected with one end of a scanning auxiliary line, the other end of which is connected to a scanning line of the following stage.Type: GrantFiled: July 11, 2001Date of Patent: March 1, 2005Assignee: Sharp Kabushiki KaishaInventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo, Kazuyori Mitsumoto
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Publication number: 20040141144Abstract: A liquid crystal display apparatus is produced by the steps of arranging pixel electrodes, TFT devices and signal wiring on one surface of one substrate, arranging a transparent layer on a portion of one surface of a transparent substrate which portion is to be a display portion, bonding the one substrate and the transparent substrate to each other while the one surface having the pixel electrodes formed thereon faces the one surface having the transparent layer formed thereon, and injecting a liquid crystal between the substrates to form a liquid crystal layer. A fluidization path of the liquid crystal can be secured in a non-display portion, too, in which the TFT devices and the signal wiring are disposed when the liquid crystal is injected. Therefore, it is possible to shorten the injection time by increasing the liquid crystal injection speed and to improve productivity.Type: ApplicationFiled: September 23, 2003Publication date: July 22, 2004Applicant: Sharp Kabushiki KaishaInventors: Toshio Fujii, Naofumi Kondo
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Publication number: 20040001167Abstract: In an active-matrix liquid crystal display device, each of multiple pixels includes a first sub-pixel and a second sub-pixel, through which different voltages are applicable to a portion of the liquid crystal layer. Each of the first and second sub-pixels includes a liquid crystal capacitor defined by a counter electrode and a sub-pixel electrode that faces the counter electrode by way of the liquid crystal layer, and a storage capacitor defined by a storage capacitor electrode, an insulating layer, and a storage capacitor counter electrode. The storage capacitor electrode is electrically connected to the sub-pixel electrode, and the storage capacitor counter electrode faces the storage capacitor electrode by way of the insulating layer. The counter electrode is shared by the first and second sub-pixels and the storage capacitor counter electrodes of the first and second sub-pixels are electrically independent of each other.Type: ApplicationFiled: June 13, 2003Publication date: January 1, 2004Applicant: Sharp Kabushiki KaishaInventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo
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Publication number: 20030234904Abstract: An active-matrix substrate includes first and second trunk lines which are arranged so as to be spaced apart from, but adjacent to, each other and are supplied with signals electrically independently. First and second groups of lines include portions that are substantially parallel to each other. A first group of connecting pads for the first trunk line is located near the second trunk line such that each line of the first group is electrically connected to the first trunk line at an associated one of the connecting pads belonging to the first group near the second trunk line. A second group of connecting pads for the second trunk line is provided near the first trunk line such that each line of the second group is electrically connected to the second trunk line at an associated one of the connecting pads of the second group near the first trunk line.Type: ApplicationFiled: June 12, 2003Publication date: December 25, 2003Applicant: Sharp Kabushiki KaishaInventors: Masahiro Matsuda, Takaharu Yamada, Nobuyoshi Nagashima, Naofumi Kondo
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Patent number: 6590629Abstract: A liquid crystal display including an active matrix substrate furnished with a matrix of TFTs, in which a plurality of TAB substrates each having a driver IC are connected to the active matrix substrate through an ACF, and the driver ICs are connected to source bus lines through the ACF. Also, adjacent driver ICs disposed on the mounting substrates are connected to each other through common connection lines formed on the active matrix substrate. Consequently, the size and weight of the mounting substrates used to provide the driver ICs and lines connected to the same can be reduced, thereby making it possible to provide a light and inexpensive liquid crystal display having a small frame edge portion.Type: GrantFiled: February 4, 2000Date of Patent: July 8, 2003Assignee: Sharp Kabushiki KaishaInventors: Toshihiko Hirobe, Tetsuya Tarui, Yoshitaka Hibino, Naofumi Kondo
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Patent number: 6433851Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an, organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.Type: GrantFiled: January 11, 2001Date of Patent: August 13, 2002Assignee: Sharp Kabushiki KaishaInventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
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Publication number: 20020011982Abstract: On a termination side of each scanning line is provided a charging switching element and a discharging switching element in parallel with each other, the charging switching element having a gate electrode which is connected with one end of a scanning auxiliary line, the other end of which is connected to a scanning line of the same stage, the discharging switching element having a gate electrode which is connected with one end of a scanning auxiliary line, the other end of which is connected to a scanning line of the following stage.Type: ApplicationFiled: July 11, 2001Publication date: January 31, 2002Inventors: Masanori Takeuchi, Nobuyoshi Nagashima, Naofumi Kondo, Kazuyori Mitsumoto
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Publication number: 20010002857Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.Type: ApplicationFiled: January 11, 2001Publication date: June 7, 2001Inventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
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Patent number: 6195138Abstract: The transmission type liquid crystal display device of this invention includes: gate lines; source lines; and switching elements each arranged near a crossing of each gate line and each source line, a gate electrode of each switching element being connected to the gate line, a source electrode of the switching element being connected to the source line, and a drain electrode of the switching element being connected to a pixel electrode for applying a voltage to a liquid crystal layer, wherein an interlayer insulating film formed of an organic film with high transparency is provided above the switching element, the gate line, and the source line, and wherein the pixel electrode formed of a transparent conductive film is provided on the interlayer insulating film.Type: GrantFiled: June 12, 2000Date of Patent: February 27, 2001Assignee: Sharp Kabushiki KaishaInventors: Takayuki Shimada, Masaru Kajitani, Masaya Okamoto, Naofumi Kondo, Mikio Katayama, Yoshikazu Sakuhana, Akihiro Yamamoto, Yukinobu Nakata, Hirohiko Nishiki
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Patent number: RE37591Abstract: The liquid crystal display device includes an active matrix substrate, a counter substrate having a counter electrode, and a liquid crystal layer interposed between the active matrix substrate and the counter substrate. The liquid crystal display device further includes a plurality of scanning lines, a plurality of signal lines formed perpendicular to the plurality of scanning lines, switching elements formed in the vicinity of crossings of the plurality of scanning lines ad the plurality of signal lines, a plurality of pixel electrodes connected to the corresponding signal lines via the switching elements, and a plurality of supplemental capacitance lines formed in parallel with the corresponding scanning lines, wherein the pixel electrodes are formed over the corresponding scanning lines, and divisions of the adjacent pixel electrodes along the signal lines are located above the corresponding supplemental capacitance lines.Type: GrantFiled: October 11, 2000Date of Patent: March 19, 2002Assignee: Sharp Kabushiki KaishaInventors: Takayuki Shimada, Miyuki Tsuruya, Masumi Kubo, Kazuyori Mitsumoto, Naofumi Kondo, Mikio Katayama