Light emitting device

A light emitting device comprising:

• an anode;
• a cathode;
• and
• an organic compound layer between the anode and the cathode, the organic compound layer comprising a light emitting layer and an electron transporting layer,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region,
• wherein the electron transporting layer comprises a material having an electron transporting characteristics, and
• wherein the electron transmitting region comprises donor molecules and the material having electron transporting characteristics, and is in contact with the cathode.

A light emitting device comprising:

• a TFT having a source and a drain regions formed on an insulating surface;
• an interlayer insulating film formed over the TFT;
• a first electrode formed on the interlayer insulating film;
• an insulating layer formed so as to cover an edge portion of the first electrode;
• an organic compound layer formed on the first electrode, the organic compound layer comprising a light emitting layer and an electron transporting layer;
• and
• a second electrode formed on the organic compound layer,
• wherein the first electrode is electrically connected to one of the source region and the drain region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region, and
• wherein the electron transmitting region comprises donor molecules, and is in contact with the cathode.

A light emitting device comprising:

• a TFT having a source and a drain regions formed on an insulating surface;
• an interlayer insulating film formed over the TFT;
• a first electrode formed on the interlayer insulating film;
• an insulating layer formed so as to cover an edge portion of the first electrode;
• an organic compound layer formed on the first electrode, the organic compound layer comprising a light emitting layer and an electron transporting layer;
• and
• a second electrode formed on the organic compound layer,
• wherein the first electrode is electrically connected to one of the source region and the drain region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region;
• wherein the electron transporting layer comprises a material having electron transporting characteristics, and
• wherein the electron transmitting region comprises donor molecules and the material having electron transporting characteristics, and is in contact with the cathode.

A light emitting device comprising:

• an anode;
• a cathode;
• and
• an organic compound layer between the anode and the cathode, the organic compound layer comprises a hole transporting layer, a light emitting layer, and an electron transporting layer,
• wherein at least a portion of the hole transporting layer is in contact with the anode through a hole transmitting region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region;
• wherein the hole transmitting region comprises acceptor molecules, and is in contact with the anode, and
• wherein the electron transmitting region comprises donor molecules, and is in contact with the cathode.

A light emitting device comprising:

• an anode;
• a cathode;
• and
• an organic compound layer between the anode and the cathode, the organic compound layer comprising a hole transporting layer containing a material having hole transporting characteristics, a light emitting layer and an electron transporting layer containing a material having electron transporting characteristics,
• wherein at least a portion of the hole transporting layer is in contact with the anode through a hole transmitting region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region;
• wherein the hole transporting region comprises acceptor molecules and the material having hole transporting characteristics;
• and
• wherein the electron transmitting region comprises donor molecules and the material having electron transporting characteristics, and is in contact with the cathode.

A light emitting device comprising:

• a TFT having a source and a drain regions formed on an insulating surface;
• an interlayer insulating film formed over the TFT;
• a first electrode formed on the interlayer insulating film;
• an insulating layer formed so as to cover an edge portion of the first electrode;
• an organic compound layer formed on the first electrode, the organic compound layer comprising a hole transporting layer, a light emitting layer and an electron transporting layer;
• and
• a second electrode formed on the organic compound layer,
• wherein the first electrode is electrically connected to one of the source region and the drain region,
• wherein at least a portion of the hole transporting layer is in contact with the anode through a hole transmitting region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region,
• wherein the hole transmitting region comprises acceptor molecules and is in contact with the anode;
• and
• wherein the electron transmitting region comprises donor molecules and is in contact with the cathode.

A light emitting device comprising:

• a TFT having a source and a drain regions formed on an insulating surface;
• an interlayer insulating film formed over the TFT;
• a first electrode formed on the interlayer insulating film;
• an insulating layer formed so as to cover an edge portion of the first electrode;
• an organic compound layer formed on the first electrode, the organic compound layer comprising a hole transporting layer containing a material having hole transporting characteristics, a light emitting layer and an electron transporting layer containing a material having electron transporting characteristics;
• and
• a second electrode formed on the organic compound layer,
• wherein the first electrode is electrically connected to one of the source region and the drain region,
• wherein at least a portion of the hole transporting layer is in contact with the anode through a hole transmitting region,
• wherein at least a portion of the electron transporting layer is in contact with the cathode through an electron transmitting region;
• wherein the hole transmitting region comprises acceptor molecules and the material having hole transporting characteristics, and is in contact with the anode;
• and
• wherein the electron transmitting region comprises donor molecules and the material having electron transporting characteristics, and is in contact with the cathode.

A light emitting device comprising:

• an anode;
• a cathode;
• and
• an organic compound layer between the anode and the cathode, the organic compound layer comprising a light emitting layer and an electron transporting layer,
• wherein at least a portion of the electron transporting layer comprises donor molecules, and
• wherein the portion is in contact with the cathode.

A light emitting device comprising:

• an anode;
• a cathode;
• and
• an organic compound layer between the anode and the cathode, the organic compound layer comprises a hole transporting layer, a light emitting layer, and an electron transporting layer,
• wherein at least a portion of the hole transporting layer comprises acceptor molecules, and wherein the portion of the hole transporting layer is in contact with the anode, and
• wherein at least a portion of the electron transporting layer comprises donor molecules, and wherein the portion of the electron transporting layer is in contact with the cathode.