Active solid-state devices (e.g. – transistors – solid-state diode – Organic semiconductor material
Reexamination Certificate
2005-10-18
2010-02-02
Sarkar, Asok K (Department: 2891)
Active solid-state devices (e.g., transistors, solid-state diode
Organic semiconductor material
C257S059000, C257S072000, C257S347000, C257SE51007, C257SE51018, C257SE21024, C438S171000, C438S216000, C438S780000
Reexamination Certificate
active
07655943
ABSTRACT:
An organic electroluminescent display device having an organic thin film transistor (OTFT) and a method of fabricating the same is disclosed. The display device can maintain an insulation property of a TFT and concurrently, ensure a sufficient capacitance by using an organic insulating layer for a gate insulating layer and using an inorganic insulating layer for a capacitor dielectric. In one embodiment, the organic electroluminescent display device includes a substrate having a capacitor region and a transistor region, a TFT formed in the transistor region of the substrate, and having a gate electrode, an organic semiconductor layer, a source electrode, and a drain electrode, a capacitor formed in the capacitor region of the substrate, and having a lower electrode and an upper electrode, and a display element connected to one of source/drain electrodes of the TFT. In one embodiment, a gate insulating layer formed below or on the gate electrode of the TFT includes at least an organic insulating layer, and a capacitor dielectric formed between the upper and lower electrodes of the capacitor includes an inorganic insulating layer.
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Notice to Submit Response by Korean Intellectual Property Office on Jul. 31, 2006.
Koo Jae-Bon
Lee Hun-Jung
Suh Min-Chul
Knobbe Martens Olson & Bear LLP
Samsung Mobile Display Co., Ltd.
Sarkar Asok K
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