presentaion on oled displays

1. OLEDS
(SOLID STATE LIGHT
EMITTING DIODE)
The Future of Display
Aniket kalra
BCA student

2. Introduction ( The most interactive part of smart phone )
Organic light emitting diodes (OLEDs) have been receiving a lot of
attention over the world as a new type of display technology. OLED
displays are of great interest as a Superior flat-panel display technology.
These displays utilize current passing through thin films of organic material
to generate light. The color of light emitted and the efficiency of the energy
conversion from current to light are determined by the composition of the
organic thin-film material. Different organic materials emit different colors
of light . Organic light emitting display devices may have practical
application for television and graphic displays, as well as in digital printing
applications
Next

3. What is an OLED.
 OLEDs are solid state device composed of thin film of
organic molecules that is 100 to 500 nanometric thick.
 They emit light with the application of electricity.
 They doesn’t requires any backlight. i.e., they are self
emitting.
 They are made from carbon and hydrogen.

4. How OLED start its journey
 The first OLED device was developed by eastman
kodak in 1987.
 In 1996, pioneer produces of the world’s first
commercial PMOLED (Passive matrix organic
light emitting diode).
 In 2000, many companies like Motorola, LG etc.
developed various display.
 In 2001, Sony developed world’s largest full color
OLED.
 Many development had take place in 2010s.

5. Features
 Flexibility: flexible OLEDs have substrate made of very flexible
metallic foil or plastic. Flexible OLEDs are very light weight and durable.
Their use in device such as cell phone reduce the breakage, a major
cause of return or repair.
 Emissive Technology : They doesn’t requires any backlight. i.e.,
they are self emitting.

6.  Light weight and thin : OLED can be thinner and light weight than
LED. And it can be made more easier than liquid crystal.
 Low power consumption : because it doesn’t requires any backlit.
Only working pixel consume energy.
 High contrast, brighter and perfect display from all angles.

7. Comparison between OLED and LCD
OLEDs
 Great viewing angles can be up to
170degrees.
 Almost infinite contrast ratio
because each pixel work
independently.
 Do not require backlighting.
 Wide operational range (~ -50°C -
80°C).
LCD
 Limited viewing angles.
 Low contrast because it requires
external light.
 Slow response time.
 Requires backlight
 Temperature range (~0°C- 100°C).
OLEDs LCD

8. OLEDs Advantages
 Thinner , lighter and more flexible.
 Do not requires backlighting like LCDs.
 Can be made to large sizes.
 Large filed of view, about 170°
 Brighter.
 High resolution, <5μm pixel size.

9. OLED Disadvantages
 Expensive :- Overpriced due to less production and lack of material
availability
 UV sensitivity: OLED displays can be damaged by prolonged
exposure to UV light.
 Screen burn-in: Unlike displays with a common light source, the
brightness of each OLED pixel fades depending on the content
displayed

10.  Water damage:- OLED can be easily damaged by
direct contact of water and moisture.
 Color balance issue.
 Lifespan.:- While red and green OLED films have
longer lifetimes (46,000 to 230,000 hours), blue
organics currently have much shorter lifetimes (up to
around 14,000 hours).

11. Application
Major application of OLEDs are
 OLED television
 Mobile phone with OLED screen.
 Rolltop laptops

12. THANK YOU