Samsung Sdi Co., Inc.

Samsung Mobile Display Co., Ltd.

Samsung Electronics Co., Ltd.

Jang Hyuk Kwon

Seong Taek Lee

Mu Hyun Kim

Min Chul Suh

Byung Doo Chin

Joon Young Park

Tae Min Kang

Kwan Hee Lee

Soo Jin Park

Dae Yup Shin

Dong Hyun Jung

Jong In Hong

Jun Yeob Lee

Chan Hyo Lee

Kyung Sun Choi

Yong Joong Choi

Sang Hyun Ju

A manufacturing method of an active matrix organic light emitting diode (AMOLED) display and an apparatus for manufacturing the AMOLED display, where the display has improved surface flatness and thickness uniformity as well as an improved image quality at edge regions of a pattern. According to the exemplary embodiment of the present invention, an anode electrode is formed on a lower structure of a substrate, an organic layer is formed on the anode electrode by imaging a complex laser beam on a donor film disposed on the substrate having light emitting materials, the complex laser beam having energy distribution inclination over 2%/&#x3bc;m at a threshold energy. The donor film is removed, and a cathode electrode is formed on the organic layer.

Manufacturing method of OLED display and apparatus for manufacturing the OLED display

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

In a method for fabricating an organic electroluminescent display, a first electrode layer is formed on a transparent substrate, and a hole transport layer is formed on the first electrode layer. After an organic luminescent layer is formed on the hole transport layer by scanning a donor film disposed on the substrate using a laser beam, the donor film is removed and then a second electrode is formed on the organic luminescent layer. The laser beam dithers while performing the scanning operation to make the energy distribution uniform.

Method for fabricating organic electroluminescent display

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 display device including a first electrode and a second electrode formed on a substrate, and a plurality of organic film layers between the first and second electrodes, including a first organic film layer provided between the emitting layer and the second electrode, and a second organic film provided between the emitting layer and the first organic film layer, wherein the first organic film layer includes a first organic metal complex compound, and the second organic film layer includes a mixture of a charge carrier transport material and a second organic metal complex compound.

Organic electroluminescent display device having bi-layer electron injection structure

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

The present invention relates to a blue light-emitting compound for organic polymer EL devices and organic EL devices having superior color purity and light-emitting efficiency by providing a blue light-emitting compound for organic EL devices represented by Chemical Formula 1 and an organic EL device using the blue light-emitting compound:wherein R1 to R8 each independently represents a functional group selected from the group consisting of hydrogen alkyl groups, alkoxy groups, carbon rings, aryl groups, hetero rings and fused aromatic compounds having from 1 to 30 carbon atoms; to of R1 to R3 may additionally be connected by a ring; and two of R4 to R8 may additionally be connected by a ring.

Blue light-emitting compound for organic electroluminescent device and organic electroluminescent device using the same

Relating to a method for fabricating an organic electroluminescent display having improved surface flatness and thickness uniformity as well as an improved image quality at edge regions of a pattern, a method for fabricating an organic electroluminescent display includes the steps of: forming a first electrode layer on a transparent substrate, the first electrode layer being a positive electrode; forming an assistant layer on the first electrode layer; forming an organic luminescent layer on the assistant layer by scanning a donor film using a laser beam, the donor film being disposed on the substrate having luminescent materials for R, G, and B; removing the donor film; and forming a second electrode layer on the organic luminescent layer, the second electrode layer being a negative electrode, wherein the step of forming an organic luminescent layer comprises the step of dithering the laser beam in a direction perpendicular to a scanning direction of the laser beam.

Growing community of inventors

Suwon, South Korea

Jang Hyuk Kwon