LCD Display vs AMOLED Display

June 11, 2021

LCD Display vs AMOLED Display | Comparison

Over the years, there has been a steady growth in the use of smartphones. This has led to the growth of mobile display technologies. The names such as OLED, LCD, touchscreen, retina display, have been making rounds for years. AMOLED is a technology derived from OLED, and it has gained immense attention in recent years. This post focuses on an ongoing debate on AMOLED vs LCD Displays.

LCD Display:

LCD (Liquid Crystal Display) is a flat panel display that uses liquid crystal to display images. LCDs are used in computer monitors, televisions, cell phones, instrument panels, watches & digital clocks, and some more. The LCD was constructed with six layers.

● Polarizing filter.

● Display glass substrate with ITO electrodes.

● Twisted nematic liquid crystal

● Glass substrate with the common electrode film.

● Polarizing filter film with a horizontal axis to block the light.

● Reflective surface.

Types of LCDs include:

● Twisted Nematic

● In-Panel Switching displays

● Vertical Alignment Panels

● Advanced Fringe Field Switching

In mobile phones there are two types of LCD display:

● Thin Film Transistor LCD (TFT LCD) display which uses in old model mobile phones

● In-plane switching LCD (IPS LCD) display which uses in android mobiles phones (smartphones).

Applications:

● The liquid crystal displays (LCDs) are used in aircraft cockpit displays.

● The television is main applications of LCD.

● Mostly the computer monitor is made up of LCDs.

● The LCDs are used in mobile screens

LED Display:

LED (Light Emitting Diode) is a flat panel display that uses LED lights as pixels to display images. These displays are widely used. LED consists of a combination of Red, Green, Blue (RGB) color lights.

Applications:

● LED is commonly used as an On/Off indicator lamp on electrical equipments.

● Aviation lighting.

● Traffic signals and Burglar alarms systems.

● Camera flashes and automotive heat lamps.

Types of LED:

OLED:

OLED (Organic Light Emitting Diode) display contains an LED which is an organic material that emits light when the current is passed through it. It is used to display rich and vibrant colors. There are mainly two types:

● Active Matrix Organic Light Emitting Diode (AMOLED)

● Passive Matrix Organic Light Emitting Diode (PMOLED)

AMOLED:

AMOLED (active-matrix organic light-emitting diode) is a type of OLED display device technology. OLED describes a specific type of thin-film-display technology in which organic compounds form the electroluminescent material, and active matrix refers to the technology behind the addressing of pixels.

PMOLED:

PMOLED stands for Passive-Matrix OLED, which relates to the way you control (or drive) the display. A PMOLED display uses a simple control scheme in which you control each row (or line) in the display sequentially (one at a time). PMOLED electronics do not contain a storage capacitor and so the pixels in each line are actually off most of the time.

Comparison:

Here the comparison between LCD Display and AMOLED Display was given, because these two displays are used in mobile phones.

Properties	LCD Display	AMOLED Display
Light Source	Single Light Source	Multiple LED lights
Cost	Cheap	More Expensive
Colors	Not much more bright	It shows colors on bright
Power efficiency	Low power efficiency	High power efficiency
Life-time	Long	Short
Black level	Low	High
Battery usage	High	Low
Issues	Light leaking issues	Light burning issues

If you are going to use smartphones for watching movies, playing games, or other multimedia usage, AMOLED display mobiles are best. For a long time usage, LCD display mobiles are best.