Patents by Inventor Toshiaki Takamatsu

Toshiaki Takamatsu 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: 5715022
    Abstract: An image display apparatus is disclosed which includes: an optical system including a light source and at least one projection lens; a display means for forming a display image, the display means including a non-luminescent display panel and a microlens array disposed on the light-incidence side of the display panel; and at least one projection lens for projecting the display image; wherein the display panel and the microlens array are combined with each other by means of an adhesive made of a transparent material. In cases where the microlens array is provided with color filters which are arranged so as to correspond to the microlenses of this array, the image display apparatus can provide a bright display of color images with an improved contrast. Moreover, when the display panel and the microlens array are combined with each other by means of an adhesive containing spacers, the image display apparatus has a high thermal reliability.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: February 3, 1998
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Shinichi Ogawa, Masao Yoshikawa, Hiroshi Hamada, Noriko Watanabe, Fumiaki Funada
  • Patent number: 5381187
    Abstract: An image display apparatus is disclosed which includes: an optical system including a light source and at least one projection lens; a display means for forming a display image, the display means including a non-luminescent display panel and a microlens array disposed on the light-incidence side of the display panel; and at least one projection lens for projecting the display image; wherein the display panel and the microlens array are combined with each other by means of an adhesive made of a transparent material. In cases where the microlens array is provided with color filters which are arranged so as to correspond to the microlenses of this array, the image display apparatus can provide a bright display of color images with an improved contrast. Moreover, when the display panel and the microlens array are combined with each other by means of an adhesive containing spacers, the image display apparatus has a high thermal reliability.
    Type: Grant
    Filed: February 13, 1992
    Date of Patent: January 10, 1995
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Shinichi Ogawa, Masao Yoshikawa, Hiroshi Hamada, Noriko Watanabe, Fumiaki Funada
  • Patent number: 5311205
    Abstract: In a color liquid-crystal display apparatus using mosaic arrangements, the same color of picture elements which are driven by the same signal electrode are alternately arranged right and left. Accordingly, all that is necessary is that the same color of picture signal is applied upon the same signal electrode in spite of the mosaic arrangement. Thus, a circuit which switches a color image signal of an analog line memory is unnecessary, so that the driving circuit is extremely simplified.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: May 10, 1994
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Hamada, Toshiaki Takamatsu, Naofumi Kimura
  • Patent number: 5144288
    Abstract: The present invention relates to picture elements of a color liquid-crystal display apparatus, color arrangements of coloring means, and the electric control. The arrangement patterns of picture-element electrodes are provided which may be driven by a simple driving circuit and may obtain the regenerative images of high quality. In the color liquid-crystal display apparatus, the delta arrangement is adopted, thus improving the image resolution and the display quality.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: September 1, 1992
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Hamada, Toshiaki Takamatsu, Naofumi Kimura
  • Patent number: 5006840
    Abstract: In a color liquid-crystal display apparatus using mosaic arrangements, the same color of picture elements which are driven by the same signal electrode are alternately arranged right and left. Accordingly, all that is necessary is that the same color of picture signal is applied upon the same signal electrode in spite of the mosaic arrangement. Thus, a circuit which switches a color image signal of an analog line memory is unnecessary so that the driving circuit is extremely simplified.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: April 9, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Hamada, Toshiaki Takamatsu, Naofumi Kimura
  • Patent number: 4877309
    Abstract: A color liquid crystal display device is composed of first and second liquid crystal display cells aligned over each other, in which each cell includes a pair of color polarizers having respective polarization axes which are oriented at right angles to each other. The color polarizers of each cell contain at least one color which is the complement of the color contained in the other color polarizer. In this way, display contrast and brightness can be enhanced by allowing a higher ratio of picture elements to be utilized for monochromatic displays.
    Type: Grant
    Filed: December 8, 1987
    Date of Patent: October 31, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshiaki Takamatsu
  • Patent number: 4778257
    Abstract: An improved electrode assembly is disclosed herein especially for use in a matrix type liquid crystal display panel, which assures exact alignment of picture elements and increased yield of manufacture regardless of disalignment between scanning electrodes and signal electrodes in the electrode assembly. The display panel includes a first support carrying a plurality of the scanning electrodes, a second support carrying a plurality of the signal electrodes and disposed to face the first support and a layer of liquid crystal material interposed between the first and second supports. The signal electrodes are divided into an upper block and a lower block and the scanning electrodes are used in common for the upper and lower blocks. Pursuant to the present invention, the width of division between the upper and lower blocks of the signal electrodes is smaller than the spacing of the scanning electrodes.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: October 18, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Masataka Matsuura
  • Patent number: 4690510
    Abstract: There is disclosed a structure of a matrix display unit having a matrix display panel with mutually perpendicular groups of signal and scaning electrodes and a wiring board mounting thereon a driver circuit having output terminals disposed on two marginal edges of the wiring board. At least one of the marginal edges is bent closely toward the matrix display panel. Terminal electrodes of one of the groups of the matrix electrodes are electrically connected to the bent marginal edge in confronting relation through an electrically conductive anisotropic member, terminal electrodes of the other group of the matrix electrodes are electrically connected to the other marginal edge through a bent electrically conductive anisotropy member or a flexible wiring sheet.
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: September 1, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Hiroshi Kuwagaki, Shigehiro Minezaki, Kunihiko Yamamoto, Hiroshi Nakatani, Hisao Kawaguchi
  • Patent number: 4593977
    Abstract: A color liquid crystal display device as disclosed uses a color filter in a liquid crystal cell in which a layer of a polymide resin for orientation of liquid crystal molecules is provided to cover the color filter or the orientation layer of liquid crystal molecules contains a dye or like coloring substance to form a combined orientation and color filter layer.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: June 10, 1986
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Masataka Matsuura, Tatuo Uchida
  • Patent number: 4553821
    Abstract: There discloses a liquid-crystal display device which is effective for the display of images particularly in a TV set and in which the liquid-crystal layer contains a dopant in a specific range of quantity and insulating layer is treated with an alkoxysilane coupling agent containing a glycidoxy group.
    Type: Grant
    Filed: February 10, 1985
    Date of Patent: November 19, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yutaka Ishii, Fumiaki Funada, Toshiaki Takamatsu, Wada Tomio
  • Patent number: 4549174
    Abstract: In a multi-layer matrix type liquid crystal display panel having a stack of liquid crystal display cells and matrix electrodes provided for respective ones of the liquid crystal display cells, the supports of the respective liquid crystal display cells are piled sequentially, one on top of the other, with a first dimension sequentially longer and a second dimension sequentially shorter, thereby allowing enough room on all sides for electrode connections. A rigid circuit board has terminals which face away from the terminals of the display panel. The terminals of the display panel and the circuit board are connected through a plurality of flexible sheets.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: October 22, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumiaki Funada, Toshiaki Takamatsu, Shuuhei Yasuda, Masataka Matsuura
  • Patent number: 4536060
    Abstract: A liquid-crystal display device which is effective for the display of images particularly in a TV set and in which the liquid-crystal layer contains a dopant in a specific range of quantity and the substrates are adhered to each other and sealed by two resin layers in which the outer one is a thermoplastic polyamide and the inner one is a saturated polyester.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: August 20, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Yutaka Ishii, Tomio Wada
  • Patent number: 4511217
    Abstract: A curved electrode pattern is included within a liquid crystal color display cell to compensate for the differences of the thickness of the liquid crystal color display cell across one of the segmented electrode patterns, thereby providing a uniform color indication in the segmented electrode patterns. A sound color display representative of a sound intensity level is indicated in the liquid crystal color display cell to show the expanse and the transition of the sound intensity level as a color change in said liquid crystal color display cell in each of said segmented electrode patterns.
    Type: Grant
    Filed: January 26, 1984
    Date of Patent: April 16, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Keisaku Nonomura
  • Patent number: 4509099
    Abstract: This invention is directed to an electronic component with a plurality of terminals thereon for liquid crystal display apparatus or the like. Since the construction is rendered smaller in size and the distributing sheet is rendered rigid in the contact position of the elastic conductor along the juxtaposing direction of the terminal pieces, the terminal pieces of the base plate can be electrically conducted, without failure the terminals through the elastic conductors.
    Type: Grant
    Filed: February 18, 1983
    Date of Patent: April 2, 1985
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Shuhei Yasuda, Masataka Matsuura
  • Patent number: 4487480
    Abstract: In a multi-layer matrix type liquid crystal display panel having a stack of a plurality of liquid crystal display cells and matrix electrodes provided for a respective one of the liquid crystal display cells, all supports of the respective liquid crystal display cells are piled sequentially one on top of the other with its longitudinal length longer and its lateral length shorter, than the next sequential top support thereby allowing enough room on all sides for electrode connections.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: December 11, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Keisaku Nonomura, Toshiaki Takamatsu, Hisashi Uede, Tomio Wada
  • Patent number: 4482212
    Abstract: The multi-layer liquid crystal display panel disclosed herein includes a plurality of liquid crystal layers, terminal electrodes for the respective liquid crystal layers disposed so as not to overlap each other in a plan view, and a wiring film for connecting the respective terminal electrodes. The terminal electrodes and the wiring film are bonded through infrared radiation or thermal bonding. The film is typically made of polyamide or polyester carrying a patterned conductive material.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: November 13, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Shuhei Yasuda, Masataka Matsuura
  • Patent number: 4474839
    Abstract: Two or more liquid crystal units are disclosed herein to provide a greater area liquid crystal display panel. Each of the liquid crystal display units has a front support and a back support both of which are adhesively attached to each other via a proper seal resin applied on the supports along all but one side or along all but two opposite sides thereof. In an edge portion including the sides where no seal resin is applied, there is formed an opening for injection of liquid crystal material into a cavity defined between the two supports. After injection of the liquid crystal material the opening is pre-sealed with the adhesive material which may be solidified through thermal treatment or light treatment. The edge portions of the two liquid crystal display panels are situated in contact relationship with each other and bonded together by the use of the adhesive material which may be solidified through thermal treatment or light treatment.
    Type: Grant
    Filed: December 14, 1982
    Date of Patent: October 2, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Shuuhei Yasuda, Masataka Matsuura
  • Patent number: 4474432
    Abstract: A liquid crystal display cell includes two opposing substrates at least one of which is made of a highly polymerized transparent compound film. The transparent film is extended from the liquid crystal display cell. Wiring patterns are formed on the thus extended portion of the transparent film. Semiconductor circuit elements for driving the liquid crystal display cell are mounted on the extended portion of the transparent film and electrically connected to the wiring patterns.
    Type: Grant
    Filed: February 18, 1981
    Date of Patent: October 2, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiaki Takamatsu, Fumiaki Funada, Hiroshi Uede, Tomio Wada
  • Patent number: 4443819
    Abstract: A liquid crystal display TV includes a TV housing, and a reflective type liquid crystal display panel installed in the housing. A magnifying lens is disposed for magnifying an image on the display area and a support assembly is provided for supporting the magnifying lens to allow a space where the ambient light enters from above a display area of said liquid crystal display panel when the magnifying lens lens is in use. This arrangement allows full utilization of the ambient light for the optical performance of the liquid crystal display panel.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: April 17, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumiaki Funada, Toshiaki Takamatsu, Tomio Wada
  • Patent number: 4431270
    Abstract: In a multi-layer matrix type liquid crystal display panel having a stack of liquid crystal display cells and matrix electrodes provided for respective ones of the liquid crystal display cells, the supports of the respective liquid crystal display cells are piled sequentially, one on top of the other, with a first dimension sequentially longer and a second dimension sequentially shorter, thereby allowing enough room on all sides for electrode connections. A rigid circuit board has terminals which are located in a complementary fashion with respect to the terminals of the display panel. The opposing terminals of the display panel and the circuit board are connected through a flexible sheet.
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: February 14, 1984
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Fumiaki Funada, Toshiaki Takamatsu, Shuuhei Yasuda, Masataka Matsuura