LCDisplays - A little current leads to a lot of contrast. The world's most well known optical illusion.

5-34 — elektor may 1980 LCDispl Liquid crystal displays are an economic alternative to the well known LED. They combine high readability with versatility. As far as amateurs are concerned, however, judgement is still being suspended This is because, until recently, LCD"s have always been difficult to obtain, expensive, and involved complex operation. Now, at last, they ,are in a new phase of development and the prices have come down dramatically. During the past two years LCDisplays have been catching up with their LED counterparts. In fact, it almost looks as if LED"s will soon be considered old- fashioned. This is hardly surprising, when both types of display are com- pared. LCD"s consume approximately 1000 times less current than LED"s. Contrast under bright light improves rather than deteriorates. Furthermore, LCD"s are extraordinarily versatile. They can be transparent and allow for great flexibility in size and form. Before the above advantages could be capitalized on, a f...