The Differences Between LCD and LED
LCD and LED are two commonly used large screen products, with the development of technology, more and more LCD are replaced by LED.
Why people now more tend to choose LED, what is the difference between them, and what advantages LED has? Let's find out in this article.
Display principle
Way of emitting light
LCD is short for Liquid Crystal Display, the LCD screen emits light through a combination of LED backlight and liquid crystal module.
LED refers to light-emitting diodes, and the LED display is composed of an arrangement of light-emitting diodes, which is packaged into lamp beads by LED chips and then emits light.
Display effects
Brightness
Because the LED lamp beads are exposed on the surface and are not backlit like LCD screens, their brightness is higher.
When used outdoors in strong light environments, LED screens will not cause problems such as reflection.
Viewing angle
The viewing angle of LCD is limited. As long as the deviation angle is slightly larger, the original color cannot be seen, or even nothing can be seen. LED can provide a 160-degree viewing angle, which has great advantages.
Colors
The colors of LED screens are more realistic than LCD screens because the color gamut of LEDs is much larger than that of LCDs.
Contrast Ratio
The contrast ratio refers to the brightness contrast between black and white colors (that is, the brightness contrast between the brightest and darkest colors).
A display with high contrast can display richer color gradations. Display with low contrast may have uneven color patches when displaying images with gradients of the same color, resulting in poor display quality.
The current static contrast ratio of LED displays has reached more than 1000:1, while that of LCDs is about 350:1.
Refresh Rate
The refresh rate refers to the number of times the electron beam scans the image on the screen repeatedly. The higher the refresh rate, the better the stability of the displayed picture.
LED uses electrical energy to convert into light energy and adopts the injection principle, so its refresh rate is higher.
Splicing Effects
The difference in splicing effect mentioned here mainly refers to the stitching.
There is no splicing gap no matter how the LED screen is spliced, while the LCD splicing screen will have a few millimeters of physical borders after splicing, thus forming a patchwork.
If compared from the full screen effect, the difference still very obvious, and the LED full-screen effect is more complete.
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Cost
Power Consumption
When the LCD is turned on, the entire backlight layer is turned on. It can only be fully on or fully off, and the power consumption is high
Each pixel of the LED works independently and can light up certain pixels individually, so the power consumption of the LED will be lower.
The power consumption ratio of LED and LCD is about 1:10, and LED is more energy-saving.
Life Span
LED displays can generally support about 100,000 hours. Under normal circumstances, they can be used for decades, while LCDs can be used for much less.
Maintenance Costs
The maintenance cost of LED display is low. Once the LCD screen leaks, the entire screen must be replaced, while the LED display only needs to replace the module accessories.
Applications
Installation Environment
In actual applications, LED screens can be installed outdoors and indoors.
Because it has the advantages of waterproofing, sun protection, and high brightness adjustment, it does not limit the installation environment.
The LCD screen can only be used indoors because it cannot achieve such high brightness, is easily reflective when used outdoors, and is not waterproof.
Application Scope
LED display has a wider application range than LCD display. It can display various text, numbers, color images and animation information, and can also play color video signals such as TV, video, VCD, DVD, etc.
What's more important is that multiple displays can be used for networked broadcasting.
In fact, choosing LCD or LED is necessary to consider comprehensively and make a choice based on actual needs.
SoStron as manufacturer of LED Display are professional in this industry with more tha 16 years experience.
Any projects or support needs about LED Display, welcome to contact us.
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