Displays: OLED-LCD-TFT

News Details

03/10/16

OLED Displays with Long Durability

Despite all progress during last years, a flaw of insufficient durability has been adhering to OLED displays.

Our partner RiTdisplay now presents a new generation of OLED displays with considerable improvement of operation hours by changing the composition of organic layers.

Formerly, a certain number of carriers (electrons, holes) passed through the emission layer in an unimpeded manner, without recombining and creating photons. By implementing additional blocking layers on the surfaces of emitting layer, this phenomenon is widely limited.

More excitons are formed which recombine and emit more photons. Efficiency and light yield are improved considerably. This means, to produce a certain luminance, less electrical energy is needed. Thermal stress to organic substances decreases and durability increases.

Those are the results:

 

Operation hours at certain luminance

Colour

Version

Duty (Number of lines)

32

64

128

White

formerly

18700 hours at 160 cd/ m²

13000 hours at 120 cd/ m²

11000 hours at 90 cd/ m²

new

120000 hours at 160 cd/ m²

80000 hours at 120 cd/ m²

50000 hours at 90 cd/ m²

Yellow

formerly

45000 hours at 160 cd/ m²

40000 hours at 100 cd/ m²

24000 hours at 100 cd/ m²

new

150000 hours at 160 cd/ m²

120000 hours at 100 cd/ m²

60000 hours at 100 cd/ m²

RGB

formerly

12000 hours at 100 cd/ m²

10000 hours at 90 cd/ m²

new

24000 hours at 100 cd/ m²

15000 hours at 90 cd/ m²


See this news in italian.


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