oled displayspeople.uncw.edu/ricanekk/teaching/fall07/csc495/ppts/oled.ppt · oled vs. lcd oled...
TRANSCRIPT
OLED DisplaysPresented by Brett Buddin
Overview•What are OLEDs?•How do they work?•Benefits•Drawbacks•Potential uses•Development trends
What are OLEDs?•Light Emitting
Diodes with emissive layers that are made up of organic molecules
•Deposited across a surface to create a display
Types of OLEDs
Types of OLEDs
Benefits
•Lighter weight•Lower power
consumption•Higher contrast
ratios
•Faster response times•Higher viewing angles•More durable
Compared to LCDs and Plasma displays...
OLED vs. LCDOLED Display Equal Level LCD
DisplayDisplay Size 3.8 inches same
Number of Dots 480x320 same
Number of Colors 262,144 same
Brightness 150 cd/m2 55 cd/m2
Response Time 0.01ms 16ms
Color Gamut ~100% ~40%
Contrast Ratio 1000:1 100:1OLED introduced in the Sony PEG-VZ90
Drawbacks•Limited life-span of the organic materials• Green and Red: ~20,000 hours• Blue: ~5,000 hours
• Cleanrooms required in production• Currently expensive to produce• Easily damaged by water• Patent has been filed
Potential uses•Televisions•Computer monitors•Handheld devices•Advertising•Heads-up displays•Lighting
Development trends•Can be found right now in cell phones,
digital cameras, and PDAs •Life-span of OLEDs is ever increasing•Sony to release the first OLED television
(XEL-1) in December 2007• 11” 960x540
• 3mm thin
• 1,000,000:1 contrast ratio
• ~$1,750
Development trends