UPSC Prelims 2017 – Question 74

Here is Question No. 74 a part of our series on UPSC Prelims 2017

Q74. Organic Light Emitting Diodes (OLEDs)are used to create digital displays 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

The correct answer is 1, 2, and 3. 

• Organic light-emitting diodes (OLEDs)  

• Its displays with plastic substrates have the following appealing characteristics:  

• They are ultrathin and light, and they can also be fabricated on flexible plastic to take advantage of the substrate’s flexibility. 
• Roll-up displays embedded in clothing can also be manufactured. 
• Transparent displays are also an option. Hence, statements 1, 2, and 3 are correct. 
• The main challenge in producing such displays is protecting OLEDs from oxygen and moisture. 

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