hitachi review vol 49 2000 no 1 41 plasma displays the leading medium in visual presentations at exhibitions and shows overview is fast becoming these feature full color 40 inch larger screens having a thickness of only 10 centimeters or so plus wide viewing angle they are unaffected by terrestrial magnetism can be easily attached to walls hung from ceilings as result features beginning used airport counters for displaying travel information stock exchanges share prices restaurants hospitals notices scenic views etc addition despite fact that still relatively expensive have begun appear shop windows home electronics stores dream wall tv spread small number households present actual use employ alternating current drive system which was invented more than 30 years ago 1964 has also been studying early on made significant progress fundamental research japan nhk science
