Organic electroluminescent device and method for producing the same

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a second carrier blocking layer placed at the top side of said first conductive layer;
• a first host material layer, placed at the top side of said second carrier blocking layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of an external bias voltage;
• a second host material layer, placed at the top side of said first host material layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of said external bias voltage;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said second host material layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a first host material layer, placed at the top side of said first conductive layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of an external bias voltage;
• a second host material layer, placed at the top side of said first host material layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of said external bias voltage;
• a first carrier blocking layer placed at the top side of said second host material layer;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said first carrier blocking layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a second carrier blocking layer placed at the top side of said first conductive layer;
• a first host material layer, placed at the top side of said second carrier blocking layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of an external bias voltage;
• a second host material layer, placed at the top side of said first host material layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of said external bias voltage;
• a first carrier blocking layer placed at the top side of said second host material layer;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said first carrier blocking layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a second host material layer, placed at the top side of said first conductive layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of an external bias voltage;
• a first host material layer, placed at the top side of said second host material layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of said external bias voltage;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said first host material layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a first carrier transporting layer placed at the top side of said first conductive layer;
• a second carrier blocking layer placed at the top side of said first carrier transporting layer;
• a second host material layer, placed at the top side of said second carrier blocking layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of an external bias voltage;
• a first host material layer, placed at the top side of said second host material layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of said external bias voltage;
• a first carrier blocking layer placed at the top side of said first host material layer;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said first carrier blocking layer.

An organic electroluminescent device, comprising:

• an anode;
• a hole transporting layer placed at the top side of said anode;
• an electron blocking layer placed at the top side of said hole transporting layer;
• a first host material layer, placed at the top side of said electron blocking layer, having a first guest luminous substance mixed therein for projecting a first color light source under the effect of an external bias voltage;
• a second host material layer, placed at the top side of said first host material layer, having a second guest luminous substance and a third guest luminous substance mixed therein for projecting a second color light source and a third color light source under the effect of said external bias voltage;
• a hole blocking layer placed at the top side of said second host material layer;
• an electron transporting layer placed at the top side of said hole blocking layer;
• and
• a cathode placed at top side of said electron transporting layer.

An organic electroluminescent device, comprising:

• a light-transparent substrate;
• an anode placed at the top side of said light-transparent substrate;
• a hole injecting layer placed at the top side of said anode;
• a hole transporting layer placed at the top side of said hole injecting layer;
• a DPVBi layer, placed at the top side of said hole transporting layer, having a DSA mixed therein for projecting a blue light source under the effect of an external bias voltage;
• a CBP layer, placed at the top side of said DPVBi layer, having Ir (PPy) 3 and DCM2 mixed therein for projecting a green light source and a red light source under the effect of said external bias voltage;
• an electron transporting layer placed at the top side of said CBP layer;
• an electron injecting layer placed at the top side of said electron transporting layer;
• and
• a cathode placed at top side of said electron injecting layer.

A method for producing an organic electroluminescent device, comprising the steps of:

• forming a first host material layer onto the top side of a conductive layer, a first guest luminous substance mixed into said first host material layer;
• forming a second host material layer onto the top side of said first host material layer, a second guest luminous substance and a third guest luminous substance mixed into said second host material layer;
• and
• forming a second conductive layer onto the top side of said second host material layer, a first color light source projected from said first guest luminous substance and a second color light source projected from said second guest luminous substance, and a third color light source projected from said third guest luminous substance under the effect of an external bias voltage applied between said first conductive layer and said second conductive layer.

A method for producing an organic electroluminescent device, comprising the steps of:

• forming a second host material layer onto the top side of an anode, a second guest luminous substance and a third guest luminous substance mixed into said second host material layer;
• forming a first host material layer onto the top side of said second host material layer, a first guest luminous substance mixed into said first host material layer;
• and
• forming a cathode onto the top side of said first host material layer, a first color light source projected from said first guest luminous substance, a second color light source projected from said second guest luminous substance, and a third color light source projected from said third guest luminous substance under the effect of an external bias voltage applied between said anode and said cathode.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a first host material layer, placed at the top side of said first conductive layer, having a phosphorescence substance mixed therein for projecting a red light;
• a second host material layer, placed at the top side of said first host material layer, having a second fluorescence substance and a third phosphorescence substance mixed therein for projecting a blue light and a green light, respectively;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said second host material layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a first host material layer, placed at the top side of said first conductive layer, having a phosphorescence substance mixed therein for projecting a green light;
• a second host material layer, placed at the top side of said first host material layer, having a second fluorescence substance and a third phosphorescence substance mixed therein for projecting a blue light and a red light, respectively;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said second host material layer.

An organic electroluminescent device, comprising:

• a first conductive layer having a first type of conductivity;
• a first host material layer, placed at the top side of said first conductive layer, having a fluorescence substance mixed therein for projecting a blue light;
• a second host material layer, placed at the top side of said first host material layer, having a second phosphorescence substance and a third phosphorescence substance mixed therein for projecting a green light and a red light, respectively;
• and
• a second conductive layer having a second type of conductivity, placed at the top side of said second host material layer.