Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...
Reexamination Certificate
2005-02-15
2005-02-15
Everhart, Caridad (Department: 2825)
Active solid-state devices (e.g., transistors, solid-state diode
Incoherent light emitter structure
With reflector, opaque mask, or optical element integral...
C257S191000, C257S437000
Reexamination Certificate
active
06855960
ABSTRACT:
An organic electroluminescent display in which a black matrix with a concentration gradient of a transparent material and a metallic material is formed on the same surface as a pixel electrode. The black matrix and a pixel electrode of the organic electroluminescent display are formed using only one masking operation. The black matrix has a concentration gradient of a continuous gradient structure in which constituents of the transparent material are continuously decreased while constituents of the metallic material are continuously increased as a thickness of the black matrix is increased, a step gradient structure in which the constituents of the transparent material are gradually decreased while the constituents of the metallic material are gradually increased as the thickness of the black matrix is increased, or a multi-gradient structure in which the continuous gradient structure and/or the step gradient structure are repeated.
REFERENCES:
patent: 20030107326 (2003-06-01), Park et al.
patent: 20030117059 (2003-06-01), Koo et al.
Kim Chang-Su
Kim Hye-Dong
Park Sang-Il
Shin Dong-Chan
Everhart Caridad
Lee Calvin
Samsung SDI & Co., Ltd.
Stein, McEwen & Bui LLP
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