High performance, low cost helmet mounted display

Details High performance, low cost helmet mounted display High performance, low cost helmet mounted display

1996-04-04

1998-09-22

Luu, Matthew

Computer graphics processing and selective visual display system

Image superposition by optical means

Operator body-mounted heads-up display

345 76, 345 79, G09G 500

Patent

active

058121013

ABSTRACT:
A relatively low cost, portable, low complexity, low power helmet mounted display using an electroluminescent display and associated drive circuitry configured and interconnected to take advantage of our ability to provide a -180 V and +240 V output to a row driver from a single -180 V and an already existing +60 V Supply, thus eliminating size, weight and expense of supplying a separate 240 V power supply. The +60 V power supply is already supplying the +60 V to the column driver circuitry. Also included is a column driver with a direct analog interface with an input buffer, the buffer including a polarity inverter and an adder for selectively inverting the external analog signal and adding a DC voltage.

REFERENCES:
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patent: 4962374 (1990-10-01), Fujioka et al.
patent: 5075596 (1991-12-01), Young et al.
patent: 5438241 (1995-08-01), Zavracky et al.
patent: 5491510 (1996-02-01), Gove
patent: 5550557 (1996-08-01), Kapoor et al.
patent: 5654811 (1997-08-01), Spitzer et al.

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