Context: Apple has recently shifted to microLED display technology.
About microLED display:
- They are self-illuminating diodes.
- They are brighter and has better colour reproduction than Organic Light Emitting Diode (OLED) display technology.
- It is filled with small sapphires that have strong light.
- Sapphires shine on its own forever.
- The picture in it is generated by many individual light-emitting diodes.
- It is as small as cutting a centimetre of hair into 200 smaller piece
- Each microLEDs are semiconductors that receive electric signals.
- Combined microLEDs forms a module which are then combined to form screens.
- They are resolution-free, bezel-free, ratio-free, and size-free.
- It does not require backlighting or colour filters to produce red, green, and blue colours.
Source: The Hindu
Previous Year Questions
Q.1) With reference to Web 3.0, consider the following statements:
- Web 3.0 technology enables people to control their own data.
- In Web 3.0 world, there can be blockchain based social networks.
- Web 3.0 is operated by users collectively rather than a corporation
Which of the following given above are correct? (2022)
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Q.2) With reference to street lighting, how do sodium lamps differ from LED lamps? (2021)
- Sodium lamps produce light at 360 degrees but it is not so in the case of LED lamps.
- As street lights, sodium lamps have a longer life span than LED lamps.
- The spectrum of visible light from sodium lamps is almost monochromatic while LED lamps offer significant colour advantages in street lighting.
Select the correct answer using the code given below.
- 3 only
- 2 only
- 1 and 3 only
- 1, 2 and 3
