HIGH EFFICIENCY BACKLIGHT FOR COLOR LCD DISPLAYS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,100.00
Award Year:
1991
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
17046
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Amerasia Technology Inc
2248 Townsgate Rd, Westlake Village, CA, 91361
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
() -
Research Institution:
n/a
Abstract
RECENTLY DEVELOPED COMMERCIAL LAPTOP LCD TERMINALS, USING A POWDER, ELECTRO-LUMINESCENT BACKLIGHT WITH A SUPER-TWIST, LCD DISPLAY SURFACE, EXHIBIT MUCH-IMPROVED VIEWING CONTRAST AND BATTERY LIFE. THE BACKLIGHT SYSTEM STILL CONSUMES 90 PERCENT OF THE POWER. IN THE CASE OF COLOR LCD DISPLAYS, THE BACKLIGHT POWER CONSUMPTION IS EVEN WORSE: AS MUCH AS 96PERCENT OF THE BATTERY POWER IS WASTED ON THE INEFFICIENCY OF THE BACKLIGHT SYSTEM. A HIGH-EFFICIENCY BACKLIGHT SYSTEM, BASED ON THE USE OF THIN-FILM ELECTROLUMINESCENCE (TFEL) COLOR STRIPES AS THE LIGHT SOURCE, COUPLED WITH CONCENTRATING OPTICS, COULD HAVE A SIGNIFICANT IMPACT ON BATTERY LIFE FOR A PORTABLE COMPUTER. IN PARTICULAR, THE NEW COLOR BACKLIGHT DESIGN COULD RESULT IN A 10-FOLD INCREASE IN EFFICIENCY OVER THE CURRENT DESIGN. OTHER FEATURES INCLUDE MINIMUM BACKLIGHT THICKNESS AND EXCELLENT TEMPERATURE STABILITY. PHASE I WILL ESTABLISH THE FEASIBILITY AND COMPATIBILITY OF THE VARIOUS COMPONENTS REQUIRED FOR THIS ADVANCE. RECENTLY DEVELOPED COMMERCIAL LAPTOP LCD TERMINALS, USING A POWDER, ELECTRO-LUMINESCENT BACKLIGHT WITH A SUPER-TWIST, LCD DISPLAY SURFACE, EXHIBIT MUCH-IMPROVED VIEWING CONTRAST AND BATTERY LIFE. THE BACKLIGHT SYSTEM STILL CONSUMES 90 PERCENT OF THE POWER. IN THE CASE OF COLOR LCD DISPLAYS, THE BACKLIGHT POWER CONSUMPTION IS EVEN WORSE: AS MUCH AS 96PERCENT OF THE BATTERY POWER IS WASTED ON THE INEFFICIENCY OF THE BACKLIGHT SYSTEM. A HIGH-EFFICIENCY BACKLIGHT SYSTEM, BASED ON THE USE OF THIN-FILM ELECTROLUMINESCENCE (TFEL) COLOR STRIPES AS THE LIGHT SOURCE, COUPLED WITH CONCENTRATING OPTICS, COULD HAVE A SIGNIFICANT IMPACT ON BATTERY LIFE FOR A PORTABLE COMPUTER. IN PARTICULAR, THE NEW COLOR BACKLIGHT DESIGN COULD RESULT IN A 10-FOLD INCREASE IN EFFICIENCY OVER THE CURRENT DESIGN. OTHER FEATURES INCLUDE MINIMUM BACKLIGHT THICKNESS AND EXCELLENT TEMPERATURE STABILITY. PHASE I WILL ESTABLISH THE FEASIBILITY AND COMPATIBILITY OF THE VARIOUS COMPONENTS REQUIRED FOR THIS ADVANCE.

* information listed above is at the time of submission.

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