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74

Question 74

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:

AOptions

A
A) 1 and 3 only
B
B) 2 only
C
C) 1, 2 and 3
D
D) None of the above statements is correct

BSolution

Organic Light Emitting Diodes (OLEDs) offer several significant advantages over traditional Liquid Crystal Displays (LCDs) due to their self-emissive nature and the properties of their organic materials:

  • 1. OLED displays can be fabricated on flexible plastic substrates: This is correct. Because OLEDs are made from thin films of organic materials, they can be deposited on flexible substrates, enabling the creation of bendable and even foldable displays.
  • 2. Roll-up displays embedded in clothing can be made using OLEDs: This is correct. The inherent flexibility and thinness of OLED technology make it suitable for innovative applications like roll-up displays or displays integrated directly into textiles and clothing.
  • 3. Transparent displays are possible using OLEDs: This is correct. By utilizing transparent electrodes and substrates, OLED technology can be engineered to create transparent displays, where content can be seen on the screen while also allowing viewing through it.

All three statements accurately describe advantages or potential applications stemming from the unique characteristics of OLED technology.

Diagram for Q74

CStrategy

For science and technology questions, especially on emerging technologies, understand their fundamental principles, the unique advantages they offer over existing technologies, and the innovative applications that these advantages enable. Focus on the 'why' and 'what' of the technology.

DSyllabus Analysis

This question falls under Science and Technology, specifically materials science and display technologies.

EQuestion Analysis

Medium. Requires knowledge of the properties and advanced applications of OLED technology.