OLED Screen Lifespan: Causes & Solutions

[blynxGT]

Hello all,

I have a question more or less for everyone's entertainment. Organic Light Emitting Diodes (OLEDs) can be used to make flexible screens or other devices of similar function. However, one of the major obstacles to having a practical OLED devices is the lifespan of the product. OLED screens/monitors apparently last at only a fraction of their plastic cased counterparts. Is this because of a problem of the material, i.e. degradation of the material? Since you are applied current directly to the screen instead of using a backlight like most monitors and screens does that affect the wear and tear of the product?

 

[caffenta]

Yes it is due to material degradation. There are numerous degradation mechanisms, some are not yet understood completely. OLEDs are still pretty new. They'll get better with time.

 

[Stanley514]

1)What is sense to use organic LEDs for a screens but not just usual non-organic LEDS?
Possibly they would have better lifetimes?
2)Why not to use light filters for OLEDS?For example white OLED have much longer lifetime than blue OLED.Why not just to cover white OLED pixel with some transparent blue material
to obtain blue color?

 

[caffenta]

1)What is sense to use organic LEDs for a screens but not just usual non-organic LEDS?

For some applications, they could be a lot cheaper. But I do think they have a bit of hype going too.

2)Why not to use light filters for OLEDS?For example white OLED have much longer lifetime than blue OLED.Why not just to cover white OLED pixel with some transparent blue material to obtain blue color?

I think it would defeat the purpose by adding unnecessary complexity. Plus all the energy emitted outside the blue range would be wasted.