Organic electro-luminescent device

Details Organic electro-luminescent device Organic electro-luminescent device

2005-05-17

2005-05-17

Patel, Vip (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S509000

Reexamination Certificate

active

06894433

ABSTRACT:
An organic electro-luminescent (EL) device is provided. The present invention discloses that the number of moisture-absorbing channels is increased to prevent the generation of dark spots and to improve the luminescence quality of the organic EL device. The organic electro-luminescent (EL) device comprises: a substrate; at least a bottom electrode, formed on the substrate, a plurality of isolation ribs for moisture-absorption and insulation, formed on a surface of the bottom electrode, intersecting the bottom electrode, wherein regions between every two of the isolation ribs are pre-determined light-emitting regions; at least an organic layer comprising an organic electro-luminescent layer, formed on a surface of the bottom electrode in the pre-determined light-emitting region; and at least an opposed electrode, formed on a surface of the organic layer. The isolation ribs are formed of PSG for removing the moisture generated during the processing of the organic EL device so as to prevent the generation of dark spots. Furthermore, the isolation ribs are helpful to achieve fine patterns of the device and avoid display crosstalk.

REFERENCES:
patent: 5804917 (1998-09-01), Takahashi et al.

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