Electroluminescence display device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsKoji Ono, Hideomi Suzawa, Tatsuya Arao
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Abstract
Disclosed is an electroluminescence device having a substrate, a thin film transistor over the substrate, an insulating film over the thin film transistor, an electroluminescence element over the insulating film, a passivation film over the electroluminescence element, and a counter substrate over the passivation film. The electroluminescence element is configured to emit light through the counter substrate, and a space between the substrate and the counter substrate is filled with a filler. The electroluminescence device is featured by the tapered side surface of a gate electrode of the thin film transistor.
Claims31
An electroluminescence device comprising:
- a substrate;
- a thin film transistor over the substrate, the thin film transistor comprising a gate electrode in direct contact with a gate insulating layer;
- an insulating film over the thin film transistor;
- an electroluminescence element over the insulating film;
- a passivation film over the electroluminescence element;
- and
- a counter substrate over the passivation film,
- wherein the electroluminescence element is configured to emit light through the counter substrate,
- wherein a space between the substrate and the counter substrate is filled with a filler,
- wherein a drying agent is mixed in the filler, and
- wherein a side surface of the gate electrode is tapered.
An electroluminescence display comprising:
- a substrate;
- a thin film transistor over the substrate, the thin film transistor comprising a gate electrode in direct contact with a gate insulating layer;
- an electroluminescence element electrically connected to the thin film transistor;
- a passivation film over the electroluminescence element;
- and
- a counter substrate over the passivation film,
- wherein the electroluminescence element is configured to emit light through the counter substrate,
- wherein a space between the substrate and the counter substrate is filled with a filler,
- wherein a drying agent is mixed in the filler, and
- wherein a side surface of the gate electrode is tapered.
An electroluminescence display comprising:
- a substrate;
- a thin film transistor over the substrate, the thin film transistor comprising a gate electrode in direct contact with a gate insulating layer;
- an electroluminescence element over the thin film transistor, the electroluminescence element comprising:
- a reflective pixel electrode electrically connected to the thin film transistor;
- an electroluminescence layer over the reflective pixel electrode;
- and
- a transparent electrode over the electroluminescence layer;
- a passivation film over the electroluminescence element;
- and
- a counter substrate over the passivation film,
- wherein a space between the substrate and the counter substrate is filled with a filler,
- wherein a drying agent is mixed in the filler, and
- wherein a side surface of the gate electrode is tapered.
Dependencies are inferred from the claim text.