July 20, 2016
What is an OLED display? This is nothing more than an organic light emitted diodes. The outer layer sandwiches of an OLED is made up of carbon base films between two charged electrodes, 1: A metallic cathode and another, a transparent anode, usually being glass. There are 4 layers in the organic film: 1) hole-injection 2) Hole-transport layer 3) An emissive 4) Electrons emission layer. There are two types or OLEDs I would like to talk about which are Passive and Active OLEDs. Both of these technologies are unique in their own way. However to better understand the difference see a break down below.
Passive OLEDs have a organic layer and strips of cathode and node, while Active OLEDs has a full layer of cathode, organic layers and anode (TFT Matix). Passive OLEDs are very easy to make, while active OLEDs have a higher technology yield to make. Passive OLEDs are used for small sizes up to 6 inches, while Active OLEDs are used for large screens. Passive OLEDs applications are Audio, Automobiles, meters, and industrial, while Active OLEDs are used for mobile phone, video players and TV's. PMOLED has a better power consumption of 200mW than LCD which have 500mW and VFD as 680MW. The Passive matrix OLEDs have a better response time, lifetime (100k), view angle (H: 175 and V: 175) and contrast 2000:1.
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