Liquid Crystal Displays are commonly used in automotive dashboards.
The back lighting necessary for a Liquid Crystal Display (LCD)
can be achieved by the use of a light source and a light box, light
pipe, or a diffusing screen. The space constraints of an automobile
dashboard often mean that the light pipe is the most suitable method
of illumination. At present an optimum design for the light pipe is
obtained by a "Cut and Try" approach in which several light pipes are
usually moulded and tested before a satisfactory candidate is found.
This thesis reports on experimental and theoretical work to improve
the legibility and readability of 'on' and 'off' segments of liquid
crystal displays and to automate the design of the light pipes using
Computer-Aided Design. [Continues.]
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.
[The author is] grateful for support for the project from a large Multinational