This book is a comprehensive review of the present state and future prospects of the displays used in entertainment television sets and in data terminals and personal computers. Such a treatment was deemed necessary because of the importance of displays in possible future communications services incorporating computer graphics and video. A few main conclusions are drawn. One is that modest-sized flat-panel displays will become commonplace where space is at a premium, such as on desktops and in kitchens or bedrooms. It is another matter to stretch these displays to several feet on a side, however. For the next five to ten years, these larger displays will mostly rely on optical projection. Thereafter, plasma techniques could well make large-area, flat-panel TV displays affordable.