This seminar presentation introduces a new display technology called telescopic pixel display. It provides a brief history of display technologies including cathode ray tubes and LCD. The presentation describes the operation principle of telescopic pixel displays, where each pixel acts as a miniature telescope to either transmit or block light. It discusses the fabrication process and advantages such as increased battery time, low cost, and high transmission efficiency. The only disadvantage is a low contrast ratio. The conclusion states that this new display technology has potential to be faster than LCDs and more energy efficient.

1. A SEMINAR PRESENTATION
ON
TELESCOPIC PIXEL DISPLAY
Presented by :
Sachin Malik

2. Contents
• Introduction
• History of Display technology
• LCD
• Operation Principle
• Fabrication
• Advantages and Disadvantages
• Conclusion

3. Introduction
• New technology among LCD & DMD
• Based on optical telescope
• Telescopic indicates that each pixel acts as a
miniature telescope
• Pixel = Picture + Element

4. History of Display Technologies
• Cathode Ray Tube – 1st display technology
• First commercial color CRT- 1954
• Vacuum tube containing electron gun

5. Liquid Crystal Display
• Liquid crystal display
• Good quality , price & power efficiency
• Transmit only 5-10% of the backlight radiation

6. Operation Principle
• Pixel => OFF => Mirrors are parallel
• Pixel => ON => Primary Mirror is deformed

7. Fabrication
• Each pixel is produced in two half
• Secondary mirror – Lithographically patterned
array of Al on glass
• Primary mirror -

8. Advantages
• Increases battery time
• Low cost
• Relative ease of fabrication
• High transmission efficiency
• Pixel response time is high

9. Disadvantages
• Only disadvantage is low contrast ratio

10. Conclusion
• Backlight transmission 36% & can reach upto
56% with design improvements
• Have potential to be faster than LCD’s
• More scalable than plasma
• Cheaper and energy efficient than both

11. Thank You