1986 Volume 70 Issue 10 Pages 550-554
This paper describes several types of filters for visual display terminals (VDT) that are currently available, and discusses their effectiveness.
For a limited comparison of the effectiveness of several filters and filter types, the effects of 42 filters on different types of VDT screen were measured.
The results indicate that most filters are more effective in reducing diffuse reflections than in reducing specular reflections. Especially, for the matte-finish or multi-coating screen, none of the filters resulted in a significant improvement in reducing specular reflections. The use of VDT filters, therefore, should be considered with caution.