Liquid crystal displays: Present status and future prospects

Liquid Crystal Displays are now used in aN digital watches, calculators, instruments, laptop PC monitors etc. A beginning has been made to use them as monitors in table top PCs and work-stations as well. LCDs occupy a much smaller space, and consume much lower power than. the conventional CRT monitors used at present in table top computers. The price of LCDs is coming down and the disadvantages of earlier LCDs like limited viewing angles and limited grey shades are also being overcome by using new technologies. Active matrix LCDs which use thin Jim transistor backing for each pixel give a very good performance at a high price but super twisted nematic displays coupled with multiline adhesing techniques are considerably cheaper and jind increasing applications. In entertainment TV, the somewhat slow response time and higher cost have restricted the use of LCDs but new technological breakthroughs can be expected to overcome these limitations