Advanced Display Technologies Presented by: JonathanAlan Brawn, C. Brawn & CTSJonathan Brawn CTS, ISF, ISF-C, DSCE, DSDE, DSNE Principal, PrincipalsBrawn of Brawn Consulting Consulting
[email protected] [email protected] Advanced Display Technologies • The central focus of the commercial industry is (and perhaps always will be) displays. • The topic of displays is broad, encompassing many elements built in to the final products that we buy. • This course is intended to take a detailed look at the technologies that go into each type of displays that are commonly available today. • To place it all in context, we will examine the operation and construction of the technologies themselves, and advances and trends that will characterize where we will be going in the future. • We hope you enjoy the journey! Liquid Crystal Display (LCD) Technology LCD Made Possible • There's far more to building an LCD than simply creating a sheet of liquid crystals. • The combination of four principles makes LCDs possible: • Light can be polarized. • Liquid crystal can transmit polarized light or change the plane of polarization. • The structure of liquid crystals can be changed by electric field. • There are transparent substances that can conduct electricity. Polarization of Light • Light is made up of electromagnetic waves, that can be reflected, transmitted, or absorbed by materials. • These waves will naturally have an axis, or a plane that they follow as they move through space. • When light is said to be polarized, all of the waves of light are following the same axis and orientation of the plane. • A polarizing filter is designed to block out light of certain planes, while allowing specific orientations through the filter.