Patents Assigned to Advanced Display Inc.
  • Patent number: 6908790
    Abstract: A chip carrier film comprising a metal wiring formed on a surface of a base film, a first insulating film covering the metal wiring excluding a semiconductor chip connecting pad portion and a terminal connecting pad portion, a semiconductor chip connected to the semiconductor chip connecting pad portion of the metal wiring and mounted on the base film, and a second insulating film formed on a back face of the base film and having a different coefficient of curing shrinkage from that of the first insulating film. It is possible to obtain a chip carrier film capable of preventing the suspension of the base film from being generated by the self weight of the semiconductor chip when holding the base film by the delivery device and of carrying out mounting without a hindrance.
    Type: Grant
    Filed: November 3, 2003
    Date of Patent: June 21, 2005
    Assignee: Advanced Display Inc.
    Inventors: Kouki Nakahara, Hitoshi Morishita
  • Patent number: 6884569
    Abstract: In the halftone region of a photomask, uniformity in thickness of the photoresist is enhanced. The halftone region of the photomask is arranged such that a transmitting portion and a shielding portion are alternately provided to form a transmitting/shielding pattern. The transmitting portion at the end of the transmitting/shielding pattern has a larger area than the other transmitting portion.
    Type: Grant
    Filed: April 3, 2002
    Date of Patent: April 26, 2005
    Assignee: Advanced Display, Inc.
    Inventors: Ken Nakashima, Kazuhiro Kobayashi
  • Publication number: 20050082528
    Abstract: A thin film transistor array substrate including an insulating substrate, a first metallic pattern formed on the insulating substrate, and an insulating film provided on the first metallic pattern. A semiconductor pattern is provided on the insulating film, and a second metallic pattern is provided on the semiconductor pattern. The second metallic pattern is surrounded by the semiconductor pattern.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 21, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Kazuhiro Kobayashi, Nobuhiro Nakamura, Ken Nakashima, Yuichi Masutani
  • Publication number: 20050082527
    Abstract: A thin film transistor array substrate including an insulating substrate, a first metallic pattern formed on the insulating substrate, and an insulating film provided on the first metallic pattern. A semiconductor pattern is provided on the insulating film, and a second metallic pattern is provided on the semiconductor pattern. The second metallic pattern is surrounded by the semiconductor pattern.
    Type: Application
    Filed: October 27, 2004
    Publication date: April 21, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Nobuhiro Nakamura, Kazunori Inoue, Takuji Yoshida, Kazuhiro Kobayashi, Ken Nakashima
  • Patent number: 6882377
    Abstract: The liquid crystal display of the present invention includes: a first insulating substrate as an array substrate; display pixels formed in such a manner as to be arranged in array like shape on the first insulating substrate, said display pixels having pixel electrodes electrically connected to each other; a counter substrate formed on a second insulating substrate on which common electrodes are formed; a liquid crystal layer interposed between the first insulating substrate and the second insulating substrate, the first insulating substrate and the second insulating substrate being bonded each other; a transfer electrode for supplying a common electrical potential to common electrodes on the second insulating substrate through a conductive material; wherein the transfer electrode is formed by patterning a conductive thin film that has been formed by the last conductive film forming process of the first insulating substrate; wherein a second conductive metal film, which has been formed in the second conductiv
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: April 19, 2005
    Assignee: Advanced Display Inc.
    Inventors: Satoshi Kohtaka, Takafumi Hashiguchi, Yukio Endo
  • Publication number: 20050078081
    Abstract: A liquid crystal display device comprising a including signal correcting means correction for correcting a level of an original image signal to a level with which transmittance in a steady state of the pixel with the original image signal is attained within one frame period, a horizontal driving means for driver applying a voltage in correspondence with the corrected image signal to a liquid crystal material, and an illumination device for illuminating the display panel with a plurality of light emitting regions thereof, said the light emitting regions sequentially turns turning on and off in synchronization with the application of the corrected image signal, while holding a definite time delay thereto.
    Type: Application
    Filed: November 5, 2004
    Publication date: April 14, 2005
    Applicants: Mitsubishi Denki Kabushiki Kaisha, Advanced Display Inc.
    Inventors: Kyoichiro Oda, Akimasa Yuuki, Shin Tahata, Toshio Tobita, Shiro Miyake, Kazuhiro Kobayashi, Keiichi Murayama
  • Patent number: 6876351
    Abstract: The present invention is directed to a liquid crystal display apparatus including: a timing circuit for operating a shift register within a timing circuit during a vertical blanking period such that a common signal that has been alternated at a cycle of a Single Horizontal period is applied on counter electrodes during the vertical blanking period and such that a storage electrode signal is applied on storage electrodes having a frequency, phase and amplitude identical to those of the common signal.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: April 5, 2005
    Assignee: Advanced Display Inc.
    Inventors: Susumu Tokonami, Susumu Shibata, Hironori Aoki, Shingo Nagano
  • Publication number: 20050052387
    Abstract: The present invention is directed to provide a driving circuit and driving method for a LCD having high performance of moving image displaying within few amount of memory and downscaled circuit. In the present invention, a voltage applied to a pixel to drive liquid crystal material in the pixel is determined as a voltage with which the transparency of the pixel at the end of the current field becomes the designated transparency. To determine the voltage, a data table for quick response in which output data is stored in correspondence with some of the possible value of a preceding field image data and some of the possible value of the current field image data is employed, and the output data corresponding to the preceding field image data and the current field image data is determined by the data table through linear interpolation. The voltage corresponding to the output data is applied to the pixel.
    Type: Application
    Filed: October 22, 2004
    Publication date: March 10, 2005
    Applicants: MITSUBISHI DENKI KABUSHIKI KAISHA, ADVANCED DISPLAY INC.
    Inventors: Kyoichiro Oda, Akimasa Yuuki, Shin Tahata, Toshio Tobita, Shiro Miyake, Kazuhiro Kobayashi, Keiichi Murayama
  • Publication number: 20050052398
    Abstract: A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.
    Type: Application
    Filed: October 4, 2004
    Publication date: March 10, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Hironori Takaoka, Hisaharu Oura, Susumu Shibata, Tetsuya Ikemoto
  • Publication number: 20050046779
    Abstract: A liquid crystal display device has the first substrate and the second substrate. The first substrate includes a gate line, a source line crossing the gate line, a switching element connected to the source line, a liquid crystal drive electrode connected to the switching element and having a plurality of electrodes substantially parallel to each other, and a common electrode consisting of a plurality of comb-shaped electrodes arranged substantially parallel to and alternately with the liquid crystal drive electrode. The second substrate includes color filters arranged in an array arrangement and a black matrix provided between the color filters. A spacer between the substrates contacts the first substrate in the area where the gate line, the liquid crystal drive electrode, and the common electrode are arranged in the vicinity of each other.
    Type: Application
    Filed: May 16, 2003
    Publication date: March 3, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Akinori Sumi, Yasuhiro Morii
  • Publication number: 20050036081
    Abstract: A terminal interconnection 45a including an aluminum alloy film 4a and a nitrogen-containing aluminum film 5a layered together is formed on a glass substrate 2. Nitrogen-containing aluminum film 5a in a contact portion 12a within a contact hole 11a exposing the surface of terminal interconnection 45a has a predetermined thickness d1 determined based on a specific resistance of the nitrogen-containing aluminum film. The thickness of the nitrogen-containing aluminum film outside the contact portion is larger than that of the nitrogen-containing aluminum film within the contact portion. Thereby, a semiconductor device or a liquid crystal display device having a reduced contact resistance and an appropriate resistance against chemical liquid is achieved.
    Type: Application
    Filed: September 15, 2004
    Publication date: February 17, 2005
    Applicants: Mitsubishi Denki Kabushiki Kaisha, ADVANCED DISPLAY INC.
    Inventors: Takeshi Kubota, Toru Takeguchi, Nobuhiro Nakamura
  • Publication number: 20050036094
    Abstract: A liquid crystal display device comprising a sealing material provided on a periphery of a substrate, projections formed by etching a film formed on the substrate, and another substrate opposing the substrate being remote therefrom by a gap and being supported by the projections. An area occupying rate of the projections portions with respect to a region enclosed by the sealing material is not less than 0.0001 and not more than 0.003. It is possible to obtain a liquid crystal display device free of display blurs at the time of using the same in a high temperature condition and with which no bubbles are generated when using the same in a low temperature condition by setting the area occupying ratio for the columnar spacers to be an optimal value.
    Type: Application
    Filed: September 21, 2004
    Publication date: February 17, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Akira Tamatani, Yasunori Niwano
  • Publication number: 20050030467
    Abstract: The present invention is directed to a liquid crystal display including: a plurality of electrode terminals arranged on one of end faces of a TFT glass substrate in such a manner as to be aligned on an imaginary line; and a plurality of lead terminals of a tape carrier package aligned on the electrode terminals, said plurality of lead terminals connected through an anisotropic conductive film; wherein the electrode terminals near the end face of the glass substrate is formed obliquely in such a manner as to be extended in the direction of both right and left with respect to the plurality of electrode terminals.
    Type: Application
    Filed: September 14, 2004
    Publication date: February 10, 2005
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Hiroshi Ueda, Hitoshi Morishita
  • Patent number: 6838696
    Abstract: A thin film transistor array substrate including an insulating substrate, a first metallic pattern formed on the insulating substrate, and an insulating film provided on the first metallic pattern. A semiconductor pattern is provided on the insulating film, and a second metallic pattern is provided on the semiconductor pattern. The second metallic pattern is surrounded by the semiconductor pattern.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: January 4, 2005
    Assignee: Advanced Display Inc.
    Inventors: Kazuhiro Kobayashi, Nobuhiro Nakamura, Kazunori Inoue, Takuji Yoshida, Ken Nakashima, Yuichi Masutani, Hironori Aoki
  • Patent number: 6836301
    Abstract: The liquid crystal display of the present invention includes: a first insulating substrate as an array substrate; display pixels formed in such a manner as to be arranged in array like shape on the first insulating substrate, said display pixels having pixel electrodes electrically connected to each other; a counter substrate formed on a second insulating substrate on which common electrodes are formed; a liquid crystal layer interposed between the first insulating substrate and the second insulating substrate, the first insulating substrate and the second insulating substrate being bonded each other; a transfer electrode for supplying a common electrical potential to common electrodes on the second insulating substrate through a conductive material; wherein the transfer electrode is formed by patterning a conductive thin film that has been formed by the last conductive film forming process of the first insulating substrate; wherein a second conductive metal film, which has been formed in the second conductiv
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: December 28, 2004
    Assignee: Advanced Display Inc.
    Inventors: Satoshi Kohtaka, Takafumi Hashiguchi, Yukio Endo
  • Patent number: 6825821
    Abstract: The present invention is directed to provide a driving circuit and driving method for a LCD having high performance of moving image displaying within few amount of memory and downscaled circuit. In the present invention, a voltage applied to a pixel to drive liquid crystal material in the pixel is determined as a voltage with which the transparency of the pixel at the end of the current field becomes the designated transparency. To determine the voltage, a data table for quick response in which output data is stored in correspondence with some of the possible value of a preceding field image data and some of the possible value of the current field image data is employed, and the output data corresponding to the preceding field image data and the current field image data is determined by the data table through linear interpolation. The voltage corresponding to the output data is applied to the pixel.
    Type: Grant
    Filed: July 26, 2001
    Date of Patent: November 30, 2004
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Advanced Display Inc.
    Inventors: Kyoichiro Oda, Akimasa Yuuki, Shin Tahata, Toshio Tobita, Shiro Miyake, Kazuhiro Kobayashi, Keiichi Murayama
  • Patent number: 6822633
    Abstract: A liquid crystal display according to the present invention can prevent interference fringe on a display panel due to a switching noise of a DC/DC converter, therefore a high-quality image can be displayed. Either of input signals for a timing control circuit is also supplied to a PLL circuit and the DC/DC converter is controlled by an output signal of the PLL circuit, thereby enables to synchronize a switching frequency of the DC/DC converter and control signal.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: November 23, 2004
    Assignee: Advanced Display Inc.
    Inventors: Hironori Takaoka, Hisaharu Oura, Susumu Shibata, Tetsuya Ikemoto
  • Patent number: 6822720
    Abstract: The present invention is directed to a liquid crystal display including: a plurality of electrode terminals arranged on one of end faces of a TFT glass substrate in such a manner as to be aligned on an imaginary line; and a plurality of lead terminals of a tape carrier package aligned on the electrode terminals, said plurality of lead terminals connected through an anisotropic conductive film; wherein the electrode terminals near the end face of the glass substrate is formed obliquely in such a manner as to be extended in the direction of both right and left with respect to the plurality of electrode terminals.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: November 23, 2004
    Assignee: Advanced Display Inc.
    Inventors: Hiroshi Ueda, Hitoshi Morishita
  • Patent number: 6816142
    Abstract: A liquid crystal display device comprising a signal correcting means for correcting a level of an original image signal to a level with which transmittance in a steady state of the pixel with the original image signal is attained within one frame period, a horizontal driving means for applying a voltage in correspondence with the corrected image signal to liquid crystal, and an illumination device for illuminating the display panel with a plurality of light emitting regions thereof, said light emitting regions sequentially turns on and off in synchronization with the application of the corrected image signal while holding a definite time delay thereto.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: November 9, 2004
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Advanced Display Inc.
    Inventors: Kyoichiro Oda, Akimasa Yuuki, Shin Tahata, Toshio Tobita, Shiro Miyake, Kazuhiro Kobayashi, Keiichi Murayama
  • Publication number: 20040207796
    Abstract: The display device includes the lead line connected to pixels, the line terminal connected to the lead line and connected to the terminal of the drive circuit mounted directly on the insulating substrate by the conductive material through the transparent conductive film, the external terminal to be connected to an external unit, an external line connected to the external terminal, and an external line terminal connected to the external line and connected directly to the terminal of the drive circuit by the conductive material. The surface of the line terminal to be connected to the transparent conductive film is formed by the high resistance conductive film, and the surface of the external line terminal to be connected to the terminal of the drive circuit by the conductive material is formed by the low resistance conductive film.
    Type: Application
    Filed: April 12, 2004
    Publication date: October 21, 2004
    Applicant: ADVANCED DISPLAY INC.
    Inventors: Hitoshi Morishita, Hiroshi Ueda, Hirofumi Iwanaga, Shigeaki Noumi, Takehisa Yamaguchi