oled displayspeople.uncw.edu/ricanekk/teaching/fall07/csc495/ppts/oled.ppt · oled vs. lcd oled...

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