Apparatus and method for manufacturing electro-optical devices

Active solid-state devices (e.g. – transistors – solid-state diode – Heterojunction device – Light responsive structure

Reexamination Certificate

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C257S184000, C257S291000, C257S292000, C257S293000, C257S462000

Reexamination Certificate

active

10329948

ABSTRACT:
The present invention provides an electro-optical device capable of achieving an increased light emission efficiency and an enhanced visibility. An organic electroluminescents (EL) display device has a plurality of material layers including a luminescent layer. In a plurality of material layers layered in the direction of light emission from the luminescent layer, first and second insulating interlayers are disposed between a substrate, which is positioned at the outermost surface, and the luminescent layer. The first and second insulating interlayers have a refractive index lower than that of the substrate. Accordingly, by forming predetermined materials having a low refractive index, the resulting low refractive index layers have a low dielectric constant, and consequently, the capacity between wires can be reduced.

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