Disadvantages:

1.    Usually only with a lifespan of 5,000 hours; 10,000 hours lower than LCD at least.

2.    Large quantity production of large-size screens is not available. It is therefore, only applied to those portable digital products.

3.    Problems of color purity still remains: it is difficult to display fresh and rich colors.

4.    Water can easily damage OLED.

5.    Sunlight Effect: Another disadvantage of OLED display is that they are hard to see in direct sunlight. So if you have open lobbies where sunlight reaches directly, you will not get benefit of viewing these screens.

P.S. However, these disadvantages mentioned previously are just the traditional OLED. So far, OLED lifespan has already gone beyond 5,000 hours, 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). Large-screen OLED panels are also produced and put into the market.

Advantages:

1.    Thickness can be lower than 1mm, 1/3 of LCD screen, and much lighter.

2.    Of solid construction, without liquid material. As a result, it owns a better quake-resistance.

3.    Without any problems of viewing angles. Even though watching in rather large angle, the screen is still not distorted.

4.    Response time is only 1/1000 of LCD. There will be no smear phenomena when displaying motion pictures.

5.    It can work in low temperature. OLED screen can still work even in minus 40 degree while LCD can never do that.

6.    With simple manufacture process and much lower cost.

7.    With higher luminous efficiency and lower power consumption than LCD.

8.    It can be produced with different kinds of substrates and made into soft displayer which can be bended in various shapes.