Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays? 1. OLED displays can be fabricated on flexible plastic substrates. 2. Roll-up displays embedded in clothing can be made using OLEDs. 3. Transparent displays are possible using OLEDs. Select the correct answer using the code given below:
- A. 1 and 3 only
- B. 2 only
- C. 1, 2 and 3
- D. None of the above statements is correct
Answer: C
Explanation
All the three statements are correct with regard to OLED and they are the disadvatages of LCDs. Flexible Organic Light Emitting Diodes (FOLED) fabricated on flexible plastic substates can be bent or rolled while operating. The manufacturing process of OLEDs is different to those of LCD technology. OLEDs can be printed onto almost any substrate with inkjet printer technology. That is why new applications like displays embedded in clothes or roll-up displays are possible. LCD technology engages a backlight, whereas OLED has no backlighting function. Hence it can be used for making transparent displays.