Light emitting device and method of manufacturing the same

Details Light emitting device and method of manufacturing the same Light emitting device and method of manufacturing the same

2003-04-21

2009-08-25

Patel, Ashok (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C313S503000, C313S506000

Reexamination Certificate

active

07579771

ABSTRACT:
All lights generated in an organic compound layer are not taken out towards a TFT from a cathode as a transparent electrode. For instance, the light is emitted in a lateral direction (direction parallel to the substrate surface) but the light emitted in the lateral direction is not taken out resultantly, which leads to a loss. Therefore, a light emitting device structured so as to increase the amount of light taken out in a certain direction is provided as well as a method of manufacturing this light emitting device. As a result of etching treatment, an upper edge portion of an insulator (19) is curved to have a radius of curvature, a slope is formed along the curved face while partially exposing layers (18cand18d) of a first electrode, and a layer (18b) of the first electrode is exposed in a region that serves as a light emitting region. Light emitted from an organic compound layer (20) is reflected by the slope of the first electrode (layers18cand18d) to increase the total amount of light taken out in the direction indicated by the arrow in FIG.1A.

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