Electroluminescent display device with ultraviolet...

Details Electroluminescent display device with ultraviolet... Electroluminescent display device with ultraviolet...

2005-06-28

2005-06-28

Williams, Joseph (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S504000, C313S512000

Reexamination Certificate

active

06911774

ABSTRACT:
An electroluminescent display device includes an anode, a cathode and a light emitting layer disposed between the anode and the cathode. The display device also includes a substrate allowing light from the light emitting layer to pass through itself and an ultraviolet protection film disposed in an optical path of the light passing through the substrate. Retardation films and polarizers used in conventional electroluminescent display devices are replaced by the ultraviolet protection film with respect to reducing the effect of ultraviolet rays on the degradation of the display characteristics.

REFERENCES:
patent: 6219113 (2001-04-01), Takahara
patent: 2002/0140879 (2002-10-01), Fujieda
patent: 2003/0067266 (2003-04-01), Kim et al.

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