What Is The General Comprehension Of LCD And EL Display In The Technical Arena?

The LCD uses a clear liquid chemical trapped in tiny pockets between two pieces of glass. Each pocket of liquid is covered both front and back by very thin wire. When a small amount of current is applied to both wires, a chemical reaction turns the chemicals a dark-colours—thereby blocking light. The point of blocked light is the pixel.
The principal advantages of LCDs are:

1. Low power consumption.
2. Low cost.
3. Small size.
The biggest disadvantages are:
1. LCDs do not emit light; as a result, the image has very little contrast.
2. The screen is very susceptible to glare, so the optimum viewing angle is very narrow.
3. The resolution is not as good as that of the CRT.


The EL display uses a thin film of solid, specially treated material that glows in response to electric current. To form pixel on the screen, current is sent to the intersection of the appropriate row and column; the combined voltage from the rows and the column cause the screen to glow at that point.EL displays provide every high image resolution and excellent graphics capabilities. Full-color EL  display are expected soon. A disadvantage of the technology is its cost.