Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-06-14
1999-03-23
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345211, 362 26, 362 29, G09G 336
Patent
active
058866817
ABSTRACT:
A backlight display system having a display screen illuminated directly by high intensity daylight lamps and illuminated indirectly by lower intensity nightlight lamps positioned to reflect their light off the daylight lamps and onto the display screen. The backlight display system includes intensity gradient filters and/or distribution lenses to enhance the uniformity of reflected nightlight, a brightness enhancement filter/diffuser disposed before the display screen, and optical filtering positioned between the illumination sources and the display screen. Photosensor controlled intensity feedback is used to provide smooth continuous dimming transition from a wide range of maximum to minimum intensity. The system also provides a third monochromatic nightlight lamp array for "class A" Night Vision Imaging System (NVIS) compatibility and an override switch to assure that lighting restrictions needed for night-vision are maintained. The system thus provides illumination of the display screen for operating during daytime conditions, nighttime conditions, nighttime conditions of Class A NVIS device use, and nighttime conditions of Class B NVIS device use.
REFERENCES:
patent: 5143433 (1992-09-01), Farrell
patent: 5211463 (1993-05-01), Kalmanash
Kelleher Kevin C.
Merrifield Robert M.
Vitello Robert J.
Walsh Kevin L.
Chang Kent
Hjerpe Richard A.
LandOfFree
Wide-range dual-backlight display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wide-range dual-backlight display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wide-range dual-backlight display apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2130910