Samsung Mobile Display Co., Ltd.

Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Min Chul Suh

Byung Doo Chin

Seong Taek Lee

Mu Hyun Kim

Jang Hyuk Kwon

Mu-Hyun Kim

Seong-Taek Lee

Sang Il Park

Nam-Choul Yang

Byung-Doo Chin

Hun Jung Lee

Junhyo Chung

An organic light emitting display device, includes a substrate, at least one organic light emitting diode on the substrate, a functional layer including an opaque material and a light transmitting inorganic material, and an encapsulation layer on the organic light emitting diode, the encapsulation layer including at least one inorganic layer and at least one organic layer.

Organic light emitting display device and method for manufacturing the same

An organic EL device in which light-emitting efficiency, color purity and laser induced thermal imaging characteristics are improved by providing with an organic EL device comprising a first electrode, a hole transport layer, a light-emitting layer, and a second electrode, wherein the light-emitting layer uses a mixture of an optically active low molecular electric charge transport material and a high molecular light-emitting substance.

Organic electroluminescent device using a mixture of high and low molecular light-emitting substances as a light-emitting substance

An organic thin film transistor and a flat panel display device using the same are disclosed. The organic thin film transistor includes an inorganic layer doped with an impurity in a region of the outer surfaces of source and drain electrodes, or the source and drain electrodes is formed by an inorganic material doped with an impurity. According to the organic thin film transistor, an energy barrier is generated when contact between the organic semiconductor and the source and drain electrodes is removed to form an ohmic contact.

Organic thin film transistor and flat panel display device using the same

An organic light-emitting device including an anode, a cathode, an emission layer interposed between the anode and the cathode, and at least one of the hole injecting layer and the hole transporting layer interposed between the anode and the emission layer, wherein the at least one of the hole injecting layer and the hole transporting layer includes a host material, and a dopant material as an electron acceptor, wherein the dopant material has an electron affinity greater than that of the host material by at least 0.1 eV.

Organic light-emitting device employing doped hole transporting layer and/or hole injecting layer

A donor substrate for use in a Laser Induced Thermal Imaging method includes a transfer film that includes a light-emitting layer made up of a host substance that includes a matrix material and a low molecular weight transporter, and a phosphorescent dopant. The transfer film is transferred in the formation of an organic EL device which includes a first electrode, a hole transport layer, a light-emitting layer, and the second electrode, wherein the light-emitting layer includes the light-emitting film. Accordingly, the light-emitting layer can be patterned, and a color purity and light emitting characteristics of a full color organic polymer EL device, produced through a laser induced thermal imaging operating, can be improved.

Organic electroluminescent device using mixture of phosphorescent material as light-emitting substance

An organic EL device which includes a first electrode, a hole transport layer, a light-emitting layer, and the second electrode, wherein the light-emitting layer includes a mixed light-emitting film of a host substance, which is capable of transferring an energy to another light-emitting polymer by absorbing the energy, and a phosphorescent dopant which is capable of emitting light using a triplet state after absorbing the energy received. Accordingly, the light-emitting layer can be patterned, and a color purity and light-emitting characteristics of a full color organic polymer EL device, produced through a laser induced termal imaging operating, can be improved.

An organic electroluminescent (EL) device includes a substrate, a first electrode disposed on the substrate, an emission layer comprising a polymer disposed on the first electrode, a second electrode formed on the emission layer, and a metal infiltration preventing layer, formed between the emission layer and the second electrode, for preventing a second electrode forming metal from infiltrating into the emission layer. A manufacturing method includes operations to prepare the EL device.

Growing community of inventors

Seongnam, South Korea

Min Chul Suh