The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2001
Filed:
Jun. 23, 1998
Osamu Akimoto, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
To provide an optical spatial modulation device capable of rewriting an image with a high degree of efficiency and implementing a very fast response speed and an extremely high intensity, and to provide an image display apparatus employing the optical spatial modulation device. Created for each pixel of an optical spatial modulation device are a 1,memory for storing pixel data of an image to be displayed, a 2,memory to which the pixel data stored in the 1,memory is transferred and a driving means driven in accordance with the pixel data transferred to the 2,memory to change the optical transmissivity, the optical reflectance or the polarization state of the pixel. When displaying an image, first of all, pixel data is stored in the 1,memory of each of all pixels composing the image. Then, the pixel data is transferred from the 1,memory to the 2,memory. Finally, the driving means of each of the pixels changes the optical transmissivity, the optical reflectance or the polarization state of the pixel in accordance with the pixel data transferred to the 2,memory.