OLED, which stands for Organic Light-Emitting Diode, is a relatively new display technology used in televisions, smartphones, and laptops. This technology utilizes organic compounds that emit light when an electric current is passed through them. Unlike LCD displays that rely on RGB color filters and a white light source for color production, OLED displays have their own light-emitting OLED emitters.

 

There are several types of OLED technology available. The most common type is known as AMOLED, or active-matrix OLED, widely used in OLED TVs and smartphones. AMOLED displays incorporate thin-film transistors (TFTs) as semiconductors, enhancing their efficiency. Another type is PMOLED, or passive-matrix OLED, which lacks thin-film transistors. Although PMOLED displays are easier to manufacture, they are not as energy-efficient as AMOLED.

 

Polymer light-emitting diodes (PLEDs) and quantum dot OLEDs (QD-OLEDs) are also among the various OLED technologies. QD-OLEDs combine traditional OLED materials with quantum dots, nanocrystals that emit light. This incorporation allows for enhanced color reproduction and improved efficiency.

 

Since its invention in 1987, OLED has become one of the leading display technologies in the industry. Its ability to emit light without the need for a separate backlight, wide color gamut, and thin form factor make OLED displays highly desirable for various electronic devices.