Displays

1
Displays

• Its a big market 52G
• Ill talk about some of the things Ive seen and
  learned this year
  

2
Nothing earthshaking, but lots of improvements
and tweaks.Displays are getting better and less
expensive.Improvements brightness contrast eff
iciency general appearanceCommercial problems
3
Projectors More compact, performance improving
Theyre thin, but thicker than flat panels it
will take some fancy marketing to sell
them.Light sources LEDs, laser diodes
(LDs) Improved life and color, lower lifetime
cost Cooler
4
Very small laser projectors

• Cigarette-pack size, battery operable
• Only 10-20 lumens perhaps 2-ft diagonal
• Who needs them?
• More convenient than clustering around the
  laptop
  
• Very portable
• Might be incorporated into a cell-phone-like
  toy the pPhone as competitor to the iPhone

5
The Philips response to the challenge Ujoy

• Small, 50-W arc lamp with integral reflector
  nice package.
  
• 200-300 lumens enough for 3-ft diagonal in
  reasonable room light
  
• Small projector could be battery operated
• Price 500 in really large volumes
• This could be disruptive

6
Other uses for laser projectors

• Head-up displays on windshields
• Really large displays
• but what about safety?
• UV projector and fluorescent screen

7
Improved contrast and dynamic range

• Backlight manipulation change the local
  backlight to conform to the picture
  
• Can dramatically improve picture quality
• Source material?
• New kinds of cameras?
• Can also be used to save power
• Several approaches, both hardware and software

8
The importance of small displays

• Big unit volumes and dollar volume
• Different requirements than big displays
• Shorter lifetimes
• Variety of ambient illuminations
• Power requirements
• Emissive, reflective, transflective
• Touch input (also for big displays)

9
Electronic paper

• Reflective
• Bistable (most types), hence very low power
• Low speed generally OK
• Technologies electrophoretic
• Bistable LCD
• Electrowetting, magnetic balls, others
• Limited gray scale and color (so far)

10
Electronic paper continued)

• Applications
• Electronic books
• Signage
• Shelf labels
• Flexible displays

11
3D

• Techniques eyeglasses
• Autostereoscopic
• Immersion
• Real 3D displays
• Applications
• Problems
• Cinema may be a big market

12
Quick review of technologies

• LCDs
• PDPs
• OLEDs
• Organic transistors, transparent transistors
• LEDs (big displays)
• FEDs
• New technologies and their commercial problems

13
Conclusion

• Prices will continue to fall and electronic
  displays will become even more pervasive
  
• Ebooks and flexible displays will begin to be
  commercially availablethe foldaway ebook
  
• Inexpensive head-mounted displays will
  happeneventually
  
• Its great fun to watch!