best ppt for display technology oled is a type of led which contain orgainc material

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. Types of OLED
There are generally six types of OLEDs.
 Passive Matrix OLED(PMOLED).
 Active Matrix OLED(AMOLED).
 Transparent OLED(TOLED).
 Top emitting OLED.
 Flexible OLED(FOLED).
 White OLED(WOLED).

6. Passive Matrix OLED
PMOLED stands for Passive-Matrix OLED, which relates to the way you
control (or drive) the display. A PMOLED display uses a simple control
scheme in which you control each row (or line) in the display sequentially
(one at a time). PMOLED electronics do not contain a storage capacitor
and so the pixels in each line are actually off most of the time.
PMOLED display

7. Active Matrix OLED
AMOLED is a display technology and stands for Active Matrix Organic Light Emitting
Diodes. It is a type of OLED display and is used in smart phones. Super AMOLED is an
AMOLED display that has an integrated touch function: Instead of having a layer that
recognizes touch on the top of the screen, the layer is integrated into the screen itself.
AMOLED provides an exceptional viewing experience for you. It offers a wide range of
colors with an incredible degree of color clarity which translates into far greater resolution.
This is generally made by Samsung or generally installed in flagship devices .

8. Transparent OLED
Transparent OLED is a break through transparent display technology that
displays dynamic or interactive information on a transparent surface glass.
This revolutionary display allows users to view what is shown on a glass
video screen while still being able to see through it. Transparent OLED
displays are self-emitting and utilize cutting-edge OLED technology to
eliminate the need for a backlight or enclosure, making it possible to create
truly see-through installations in a virtually frameless glass design.

9. Flexible OLED
There are generally 2 ranges of Flexible OLED available in the market
 The first range of devices that use flexible OLED displays are not really
flexible from the user perspective. The device maker bends the displays,
or curves it - but the final user is not able to actually bend the device.
Besides the beautiful designs, a flexible OLED has several advantages
especially in mobile devices - the displays are lighter, thinner and more
durable compared to glass based displays.

10.  Second generation flexible OLED devices may indeed be flexible to the
final user. Finally, when the technology is ready, we may see OLED
panels that you can fold, bend or stretch. This may create all sorts of
exciting designs that will enable large displays to be placed in a mobile
device and only be opened when required.
i.e. foldable smart phone, foldable light etc.

11. 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.

12. .
 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.

13. 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

14. 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.

15. 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

16.  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).

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

18. Conclusion
 Organic Light Emitting Diodes are evolving as the next
generation displays.
 As OLED display technology matures, it will be better
able to improve upon certain existing limitations of LCD
including
 high power consumption
 limited viewing angles
 poor contrast ratios.

19. THANK YOU