|Consider the following statements|
|1. Organic Light Emitting Diode display works without a backlight.|
|2. Organic Light Emitting Diode displays can achieve a higher contrast ratio than a Liquid Crystal Displays. Which of the statements given above is/are correct?|
A) Only 1
B) Only 2
C) Both 1 and 2
D) neither 1 nor 2
Correct Answer: C
Solution :[c] An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes; typically, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens, computer monitors, portable systems such as mobile phones, handheld game consoles and PDAs. A major area of research is the development of white OLED devices for use in solid-state lighting applications.
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