Differences between LCD Screens and LED Screens

What is LCD? 

LCD is the full name of Liquid Crystal Display. Nowadays, televisions, computers and so on all mostly use LCD.

What is LED? 

LED is the abbreviation of Light Emitting Diode. In fact, the so-called LED screen is relative to CCFL televisions, referring to the backlight source of the liquid crystal. Liquid crystals themselves do not emit light and need an additional light source to shine. Now LED can be used as the backlight source, so there comes the LED screen. Therefore, LED is not a display screen but just a component in the display screen.

Differences between LED Displays and LCD Displays

The only difference between LED and LCD lies in their different backlight types: LED backlight and CCFL backlight (that is, fluorescent lamps), which are diodes and cold cathode tubes respectively.

Image Quality: 

LED display has more vivid colors, higher saturation, a larger viewing angle, higher color gamut saturation and more accurate colors.

Cost: 

LED display is a bit more expensive than LCD.

Brightness

LED lamp‘s response speed is 1,000 times of LCD, brighter than LCD. Even under strong daylight, LED screen can still be clearly seen, and LED can work under low temperature -40°C.

Power Consumption

Comparing with LCD, the power consumption ratio of LED VS LCD is about 1:10. In this regard, LED has a great advantage.

Viewing Angle

LCD viewing angle is greatly limited, which is a rather troublesome problem. As long as the deviation angle is a little larger, the original colors can’t be seen or even nothing can be seen. While LED can provide a viewing angle of up to 160°, having a huge advantage.

Refresh Rate

LED converts electrical energy into light energy and adopts the injection principle, with higher refresh rate and is thus better in video processing.

Contrast Ratio

LCD screen contrast ratio is 350:1, which can’t meet various needs. However, the LED screen can achieve a higher contrast ratio and has a wider range of applications.

Appearance

Based on light-emitting diodes, compared to LCD, LED displays can be made thinner.

Application Range

The application range of LED screens is wider than LCD. It can play various texts, numbers, color images and animation information, and can also play color video signals such as TV, video recordings, VCDs, DVDs, etc. More importantly, it can use multiple displays for network broadcasting.

Life-span

LED screens generally can be used about 100,000 hours. Under normal circumstances, can be used for several decades, while LCDs have a much shorter life-span.

Color

The colors on LED screens are more realistic than LCD. This is because the color gamut of LED is much larger than LCD.

Summary

Generally, large screens in monitoring rooms adopt LCD splicing screens. Using LED screens as monitoring displays is still a little costly. However, LED screens are usually used in some lecture halls and meeting rooms. Outdoor areas generally also use outdoor LED billboards.