This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Luminous Efficiency Improvements of Color Phosphors Used in Vacuum Fluorescent Displays
Annotation ability available
Sector:
Language:
English
Abstract
The luminous efficiency of yellowish green and blue phosphor has been greatly improved. A luminance of 400 cd/m2 can be obtained at 12V with the yellowish green phosphor, whose luminance efficiency increased to 130%. This improvement suggests that the yellowish green phosphor can be used in the 12V driven VFD for the automotive application as well as greenish yellow and yellowish orange (1)*, (2)*. With respect to the blue phosphor, the luminance efficiency has been increased up to 160%, thus reducing the input power down to about 63%. By the continuing improvement, the blue phosphor will also be available in the 12V driven VFD.
Authors
Citation
Mizohata, T., Takano, S., and Chan, C., "Luminous Efficiency Improvements of Color Phosphors Used in Vacuum Fluorescent Displays," SAE Technical Paper 900669, 1990, https://doi.org/10.4271/900669.Also In
New Technologies in Automotive Electronic Displays and Information Systems
Number: SP-0809; Published: 1990-02-01
Number: SP-0809; Published: 1990-02-01
References
- Davis R. Mizohata T. Takano S et. al. “Twelve Volt Multi Color Vacuum Fluorescent Display” SAE Technical Paper # 880243 February 1988 87
- Mizohata T. “The reliability of Various Color Vacuum Fluorescent Displays Under High Brightness Ambient Conditions” SAE Technical Paper #880284 February 1989 25