Summary
LCD and LED display have been compared for the longest time. This article aims to provide collected data to know what is better. Both displays came from the same technology. But, one is surely more advanced than the other. At the end of this article, you will know how the two differ and how one is better.
LCD
Also, LCDs consume much less power than LED and gas-display displays (Rouse, 2020). LCDs are made with either a passive matrix or an active matrix display grid. The active matrix LCD is also known as a thin film transistor (TFT) display. The passive matrix LCD has a grid of conductors with pixels located at each intersection in the grid. An active matrix has a transistor located at each pixel intersection, requiring less current to control the luminance of a pixel (Woodford, 2020). With this said, the current in an active matrix display is switched on and off more frequently, improving the screen refresh time.
LED
LED is a screen display technology that makes use of a LED panel as the light source (Techopedia.com, 2017). Now, numerous electronic devices use LEDs such as mobile phones, TVs, tablets, computer monitors, laptops screens, etc., use a LED display to display their output.
The distance at which you can see the images on an LED display clearly is called the minimum viewing distance (Jetstarked.com, 2021). To find the optimal viewing distance, take the pixel pitch of the screen, multiply by eight, and convert to feet. The rule of thumb is that the minimum viewing distance for an LED video wall is 1 meter for every millimeter of pixel pitch. But what is pixel pitch? It is the distance in millimeters from the center of a pixel to the center of the adjacent pixel. Simply put, it is the distance between pixels. A smaller pixel pitch means there is less empty space, thus creating improved screen resolution. But, additional pixel density is intended for a closer viewing distance. If there is a greater viewing distance, higher pixel density loses its visual advantages and simply increases the cost of the display.
LED
Advantages- Efficient and low-energy consumption
- More brilliance and greater light intensity
- Greater Picture Quality
- Better for gaming
- Occupies less space
LCD
Advantages- LCD’s are consist of some microwatts for display in comparison to some mill watts for LED
- LCDs are of low cost
- Provides excellent contrast
- Consumes lower energy than plasma
- Brighter than plasma
LED
Disadvantages- More expensive
LCD
Disadvantages- Limited view
- Require additional light sources
- Range of temperature is limited for operation
- Low reliability
- Speed is very low
- LCD’s need an AC drive (used to control the speed of an electric motor)
Conclusion
Sources:
Cabading, Z. (2020). How to Know the Differences Between an LED Display and LCD Monitor. Retrieved from https://store.hp.com/us/en/tech-takes/differences-between-led-display-and-lcd-monitor.
Elprocus.com (2020). What is an LCD Display : Construction & Its Working. Retrieved from https://www.elprocus.com/ever-wondered-lcd-works.
Kennemer, Q. & Waniata, R. (2020). LED vs. LCD TVs explained: What’s the difference?. Retreived from https://www.digitaltrends.com/home-theater/led-vs-lcd-tvs.
LaMarco, N. (2019). How Does an LED TV Work?. Retrieved from https://smallbusiness.chron.com/led-tv-work-26798.html.
Rouse, M. (2020). LCD (Liquid Crystal Display). Retrieved from https://whatis.techtarget.com/definition/LCD-liquid-crystal-display.
Spectra-displays.co.uk (2020). How LCD and LED Screens Work. Retreived from https://www.spectra-displays.co.uk/blog/article/how-lcd-and-led-screens-work.
Techopedia.com (2017). LED Display. Retrieved from https://www.techopedia.com/definition/14957/led-display.
Woodford, C. (2020). LCDs (liquid crystal displays). Retrieved from https://www.explainthatstuff.com/lcdtv.html.
