US5872654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Picture display apparatus having multiple diffusing filter surfaces
Assignee: Sony Corp
•
Filing: 1996-05-23
•
Granted: 1999-02-16
•
Expires: 2016-05-23
Abstract
Abstract A picture display apparatus is provided with a display device having pixels disposed in a mosaic pattern. A plurality of optical filter surfaces are respectively placed between the display device and a viewer so that both surfaces can be overlapped with each other. Each pixel in the display device is diffracted or refracted by both surfaces to become a plurality of pixels. For each optical filter surface, an element for diffusion such as a diffraction grating and an element for refraction such as a prism can be utilized for the diffraction and refraction.
Inventors
- 👤 Yoshiki Shirochi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:43
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133504; G02B; G02B27/00; G02B27/42; G02B27/46; H; H04; H04N; H04N5/00; H04N5/72; H04N9/00; H04N9/12; G09; G09G; G09G3/00; G09G3/20; G09G3/34; G09G3/36; G09G3/3607; H04N5/66
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by refraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by refraction.
Claim 2
Dependent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by refraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by refraction.
Claim 3
Dependent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by refraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by diffraction.
Claim 4
Dependent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by refraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by diffraction.
Claim 5
Dependent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by diffraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by refraction.
Claim 6
Dependent Claim
90 words
A picture display apparatus comprising: a display device having a plurality of light-emitting pixels arranged in a mosaic pattern; and a first and at least a second optical filter surface between said display device and a viewer, the first optical filter surface optically shifting the light-emitted by each pixel into a plurality of position-shifted pixel images by diffraction and the second optical filter surface optically shifting each of the plurality of position-shifted pixel images of the first optical filter surface into a further plurality of position-shifted pixel images by refraction.
References Cited (Backward Citations)
US1758977A
Cited
US3163367A
Cited
US3768888A
Cited
US3910683A
Cited
US4310219A
Cited
US4472735A
Cited
JPS59214825A
Cited
EP0186166A1
Cited
US4804253A
Cited
US4878737A
Cited
US5121213A
Cited
US5005968A
Cited
US4989959A
Cited
US5046827A
Cited
US5046827C1
Cited
US5237452A
Cited
US5247390A
Cited
US5621487A
Cited
US5322998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-02-15 | 2002-08-17 | 2003-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-02-15 | 2006-08-17 | 2007-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-02-15 | 2010-08-17 | 2011-02-16 | $7700.00 | Window Closed / Lapsed |