Organic light emitting display device and method for...

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

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C313S506000, C313S498000, C445S024000

Reexamination Certificate

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07825584

ABSTRACT:
In an organic light emitting display and a method for fabricating the same, a layout of respective pixels is changed in order to improve life span so that one pixel region having low luminous efficiency is increased. The organic light emitting display includes at least one pixel comprising sub pixels having a plurality of colors. A first sub pixel emission layer is formed over an entire surface of a pixel region. At least two second sub pixel emission layers are formed at the first sub pixel emission layer so as to have a closed curve. The layout of respective pixels is changed so as to increase an area of one sub pixel region having low luminous efficiency in order to improve the life span and aperture ratio of the organic light emitting display. In addition, during formation of an emission layer, the number of masks is reduced. Accordingly, the possibility of misalignment is reduced, thereby maximizing resolution, improving yield, and reducing manufacturing cost.

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Korean Office Action for Korean Patent Application No. 2005-0079063 issued on Oct. 12, 2006.
Transmittal Letter along with Japanese Office action dated May 19, 2009 in Applicant's corresponding Japanese Patent Application No. 2005-326468.

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