Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Reexamination Certificate
2005-12-13
2005-12-13
Guharay, Karabi (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
C313S505000, C313S503000, C445S024000, C427S066000
Reexamination Certificate
active
06975065
ABSTRACT:
An organic EL display in which the film thickness of an organic emissive layer is made uniform so as to increase the effective light emission area. An anode and a common cathode are formed for each pixel on the organic EL display. Switching by thin-film transistors causes current to flow between the anode and the cathode so that the organic EL element emits light. The organic EL element comprises a hole transport layer, the organic emissive layer, and an electron transport layer. Among a plurality of pixels disposed in a matrix configuration, the organic emissive layer is formed in common with adjacent pixels of the same color. Forming the organic emissive layer in common can prevent a decrease in the film thickness of the organic emissive layer at the edges of the shadow mask during vapor deposition and result in a uniform film thickness of the organic emissive layer.
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Notice to Submit Argument, Korean Office Action, Application No. 10-2002-0017323, dated Apr. 21, 2004.
Nishikawa Ryuji
Yamada Tsutomu
Cantor & Colburn LLP
Colón German
Guharay Karabi
Sanyo Electric Co,. Ltd.
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