Introduction
Choosing the right screen monitor or television is not easy, but the first aspect to think about is the type of display that suits you. LCD, LED and the less known OLED, are the three currently available technologies for screen monitors and TVs.
Step 1
Every technology has some advantages and disadvantages, but the ideal choice depends on the technical specifications and cost. If the terms LCD and LED do not tell you very much and you do not know exactly the difference, this article will help you understand the working principle of each technology.
Step 2
What are the LCD and LED screen monitor?
LCD (Liquid Crystal Display) - is a screen that works based on liquid crystal illuminated by a single fluorescent lamp. A variation on the LCD screen is TFT-LCD (Thin Film Transistor Liquid Crystal Display) screen based on a transistor made of very thin layers.
LED (Light Emitting Diodes) - LCD screen is a liquid crystal illuminated by a large number of diodes located behind the screen (LED backlit) or screen edges (Edge-LED). Each diode is partly responsible for lighting small area.
After you have learned about each technology separately, it is time to compare the main features to find the optimal solution. As you see, there isn’t a clear winner, as each technology comes with advantages and disadvantages.
Step 3
-Contrast and intensity of black
Since there are several diodes in the place of a single fluorescent lamp that illuminates equally, the LED screen monitor offers better contrast and a much more intense black than the LCD.
-Color accuracy
LED screen monitor quality is better in this aspect than the LCD, especially if the diodes are placed behind the screen monitor, not on the edges.
Tips
-Viewing angles
LCD screen monitor have the biggest problems with the viewing angles, as they are limited when it comes to block the lamp light to show dark colors. LED screen monitor have brought some improvements in this direction and provide better viewing angles
-Response rate
LCD and LED screens typically provide response rates of 2-16 ms, corresponding to a refresh rate of 60-480 Hz.
Sources and Citations
-Size and weight
Both screens have reduced sizes compared with the old CRTs, but there are differences between them. LED displays are thinner than the LCD, because they use diodes instead of lamps, and the difference is especially visible when the LED diodes are located on the edges.
-Lifetime
LCD and LED screens are approximately equal as lifetimes and their values vary greatly depending on the manufacturer. In general, LCD and LED displays have a lifetime of between 25,000 and 40,000 hours, time after which the brightness will drop to its half potential.
-Energy consumption
LED displays generally consume up to 40% less power than the LCDs.
-Prices
Whether the benefits of technology, buying a monitor depends crucially on the price. The LCD are cheaper then the LEDs.
LCD TVs and monitors are still very popular, but LED displays begin to gain ground, because of the superior characteristics of contrast or color accuracy, and especially because the prices are similar.
