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Monday, February 9, 2015

Difference between LED and OLED Display


Parameter
LED
OLED
Acronym for
Light Emitting Diode
Organic Light Emitting Diode
Description
It is a flat panel display that uses array of light emitting diodes as video display.
It is also a type of LED in which organic compound is used as emissive electroluminescent layer to emit light when electric current is supplied to it. These OLEDs are self illuminating.
Brightness
LED displays can get extremely bright and have slight advantage.
OLED display can also produce brighter displays but shining OLED pixels to maximum results in reduced pixel life.
Flexibility
Hard Material is used as substrate and can not be used to make flexible displays.
OLED can be fabricated on plastic substrates and can be used for making roll up display and can be embedded in cloths in future.
Black Level
LED displays rely on LED backlights behind an LCD panel and can no produce dark blacks even with advanced dimming techniques that dim LEDs. Hence, LED Displays suffers to produce dark levels.
Dark blacks are the important factor to achieve excellent picture quality allowing higher contrast and richer colors and resulting more realistic images. OLED reigns as the undisputed champion, When it comes to black levels.

Backlighting
Can only dim the LCD image in regions.
OLEDs can produce a very low luminescence level down the individual pixel.
Refresh Rate
LED displays have refresh rate up to 240 Hz.
OLED theoretically can have a response timeless than 0.01ms ,enabling refresh rate up to 100,000 Hz.
Technology Used
White Edge LEDs
LED Arrays
Dynamics Array
RGB OLED
White OLED
Price
Fabrication of LED substrate is lower cost.
Fabrication of OLED substrate is more costly.
Life
Life of LED displays is higher than OLED.
OLED Displays have lower lifetime than LED displays. The reason behind this use of organic materials which have limited life period.
Colors
LED Displays have lesser color space than OLED displays.
Material used in OLEDs to produce blue color degrades more quickly as compare to material used to produce other colors. This variation in blue color will affect the entire output colors.
Power Consumption
Power consumption for LED displays is more than OLED displays as they require backlight source.
Power Consumption for OLED displays is less as they require no backlight.
Outdoor Performance
High
Less than LED
Response Time
Response time of LED displays is less than OLED displays.
OLED offers fastest response time of any Display Technology in use today.

Alternate Titles:
Difference between LED and OLED Displays
Difference between LED and OLED TV
LED vs OLED
How LED is different from OLED?
LED or OLED which is better?