Patents by Inventor Sou Miyasaka

Sou Miyasaka 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: 7030951
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: April 18, 2006
    Assignee: Sony Corporation
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto
  • Publication number: 20050157235
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Application
    Filed: March 16, 2005
    Publication date: July 21, 2005
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto
  • Patent number: 6885422
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: April 26, 2005
    Assignee: Sony Corporation
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto
  • Patent number: 6784961
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 31, 2004
    Assignee: Sony Corporation
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto
  • Publication number: 20040156002
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 12, 2004
    Applicant: SONY CORPORATION
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto
  • Publication number: 20020018162
    Abstract: Provided is a projection type liquid crystal display apparatus, which can improve black-level display and thus can display a higher-contrast image as compared to the related art. An optical compensator is located on the light exit side with respect to the liquid crystal display device so as to compensate for the optical phase difference caused by liquid crystal molecules in a light-entry-side region of the liquid crystal layer. As the optical compensator is located on the light exit side with respect to the liquid crystal display device, birefringence, caused by the liquid crystal molecules present in the light-entry-side region, is compensated for without being influenced by a microlenses provided in the liquid crystal plane. Consequently, the apparatus can improve the black-level display and thus can display a higher-contrast image as compared to the related art.
    Type: Application
    Filed: May 30, 2001
    Publication date: February 14, 2002
    Inventors: Yoshio Suzuki, Sou Miyasaka, Yoshiki Shirochi, Takeshi Tanimoto