Paper 1 · ICT
UGC NET December 2023 (13.12.2023) Shift-II
Which of the following statements are correct with reference to Organic Light-Emitting Diodes (OLEDs)? Choose the correct answer from the options given below.
- 1. Because of plastic organic layers, OLEDs are much thicker and heavier than conventional LCD/LED formats
- 2. OLEDs give a brighter light than LEDs leading to more vivid colours
- 3. OLEDs produce a much larger field of view than LCD/LED formats
- 4. OLEDs require some form of back-lighting so that the screen can be lit up
- 5. OLEDs consume more power than LCD/LED formats and thus produce more heat
A1, 2 and 3 only
B2, 3 and 5 only
C3, 4 and 5 only
D2 and 3 only ✓ Correct
Correct answer: (D) 2 and 3 only — OLEDs give brighter light and a wider field of view, so the answer is 2 and 3.
Explanation
★OLEDs give brighter light and a wider field of view, so the answer is 2 and 3.
★OLEDs use thin organic layers that emit their own light.
★They give brighter, more vivid colours than ordinary LEDs, so statement 2 is correct.
★They also offer a much wider viewing angle than LCD or LED screens, so statement 3 is correct.
★Being self-emitting, they are thinner and lighter and need no back-lighting, so statements 1 and 4 are false.
★They are more power efficient, not more power hungry, so statement 5 is also false.
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