In today’s rapid development of digital technology, liquid crystal display technology has always been the leading force in the field of electronic products. However, the two main liquid crystal technologies widely available on the market, LED screen and LCD screen, often confuse many consumers. Although they may seem somewhat similar, there are actually some key differences between them.

What is the difference between LED screen and LCD screen?

LED (Light Emitting Diode) and LCD (Liquid Crystal Display) are both part of liquid crystal display technology, but there are some key differences between them.

Backlight technology:
LED screen: Uses LED as backlight. LEDs can be direct LEDs, distributed across the entire backlight panel, or edge-lit LEDs, located on the edges of the display.
LCD screen: requires external light source as backlight, commonly used fluorescent lamps (CCFL, Cold Cathode Fluorescent Lamp) and LED.

Thickness and power consumption:
LED screen: LED is very easy to make mobile phones thinner, and also provides the possibility for the emergence of bendable and foldable screens in the future. Each pixel of the LED works independently and can light up certain pixels individually, so the power consumption of the LED will be lower.
LCD screen: Due to the existence of the backlight layer and the liquid crystal layer, the LCD is thicker. Once the LCD is turned on, its entire backlight layer will also be turned on. It can only be fully turned on or fully turned off, which consumes high power.

Efficiency:
LED screen: Generally more energy efficient, as LEDs are more energy efficient light sources that produce brighter light with less energy.
LCD screen: LCDs that use CCFL as backlight are relatively low in energy efficiency, while LCDs with LED backlights have more advantages in this regard.

Contrast:
LED screen: Offers higher contrast ratio due to LED’s local dimming capabilities. In some LED backlight systems, regional dimming can be achieved to make dark areas darker.
LCD screen: The backlight is evenly distributed and the contrast ratio is relatively low.

Viewing angle:
LED screen: Generally have wider viewing angles because the LED backlight system can provide more uniform brightness and color.
LCD screen: Color distortion or brightness reduction may occur when viewed at wide angles.

Color performance:
LED screen: Tend to offer more vibrant and true-to-life colors, especially in higher-end models.
LCD screen: Color performance is affected by backlight type and quality and is relatively average.

Life:
LED screen: LEDs generally have a longer lifespan and the color remains relatively stable throughout their lifetime.
LCD screen: The backlight needs to be replaced regularly and has a relatively short lifespan.

Why use LED screen?
As society continues to develop, people’s living standards are also constantly improving. LED screens have entered thousands of households.

Low energy consumption: If a company’s monthly lighting electricity bill is US$100,000, then if it chooses LED, it will only cost about US$30,000-40,000 per month, and the effect is quite obvious.

Carbon reduction: For every 1 kilowatt hour of electricity used, the carbon dioxide content emitted is approximately 0.62kg. In comparison, if you choose LED screen, you can reduce carbon dioxide emissions by 0.42kg, which plays a great role in protecting the ecological environment.

High brightness: LED screens can provide bright and clear display effects, allowing the content on the screen to be displayed well under various lighting conditions.

Thin and lightweight: LED screens are usually very thin, which makes them suitable for a variety of occasions, including home TVs, computer screens, commercial billboards, etc.

Dimmability: The LED screen can control the brightness by adjusting the current, which means you can adjust the brightness of the screen at any time as needed to adapt it to different environments.

High Contrast: LED screens are capable of producing high-contrast image effects, with deep blacks and bright colors more apparent, making images and videos clearer and eye-catching.

Summarize
When choosing electronic products, it is crucial for consumers to understand the difference between LED and LCD screens. Each technology has its advantages and disadvantages, depending on the user’s needs and preferences. As technology continues to advance, LED and LCD technologies are also constantly evolving to provide consumers with a more advanced and superior display experience. Therefore, when making shopping decisions, an in-depth understanding of the characteristics of these two display technologies will help ensure that users choose the electronic products that best suit their needs and achieve better visual enjoyment.