A brief explanation of OLED, LCD or AMOLED display differences
Touchscreen Displays

In this article, you will learn what is behind the names of the individual display technologies OLED, LCD and AMOLED.

OLED Displays

OLED (Organic Light Emitting Diode) is an organic light-emitting diode made of organic semiconducting materials that are electrically insulating. Such devices are often used in consumer electronics (TVs, smartphones and tablets).

LCD Displays

LCD (English: Liquid Crystal Display) are liquid crystal screens. The individual pixels consist of so-called "liquid crystals". In LCDs, electrical voltage is used to influence the orientation of the liquid crystals and thus the polarization direction of light. LCDs do not light up themselves, but are illuminated from behind (e.g. by means of "backlights"). LCDs are often found in consumer electronics as well as laptop displays, smartphones or tablets. In many cars, the so-called "head-up displays" are also LCD screens. In addition, most calculators or digital clocks work with it.

AMOLED Displays

Industrial Monitor - A brief explanation of OLED, LCD or AMOLED display differences a close-up of a screen
Image source: Close-up of a color display with AMOLEDs in a PenTile matrix arrangement by Matthew Rollings, Wikipedia

AMOLED (English: Active Matrix Organic Light Emitting Diode) belong to the OLED displays, but are not illuminated, but light themselves. They have small self-luminous diodes that can be individually controlled by transistors and thus represent a color. Since the technology leads to problems and is cost-intensive in the production of large screen resolutions, it is mainly only used for small devices such as smartphones.

All of these display technologies can be equipped with touchscreen panels and thus enable screen input via pen or finger. Capacitive or inductive touchscreen panels are used here.