Display apparatus
US5701131A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 1995 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Mar 29, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0198
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display apparatus is provided which displays a natural image in accordance with the upward and downward direction of the display apparatus. The display apparatus is provided with an inclination detecting unit, a memory which stores data of an image which is wide in the upward and downward direction, and a controller which displays only a partial area of the image. The inclination detecting unit includes a light emitting device which emits light in a direction varying according to the direction of the display apparatus and light receiving devices whose directions are maintained constant due to the gravity irrespective of the direction of the display apparatus. The inclination detecting unit detects an inclination based on the light incident position on the light receiving device. The controller determines the position in the upward and downward direction of the image area to be displayed in accordance with the detected inclination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.