Samsung Sdi Co., Inc.

Samsung Mobile Display Co., Ltd.

Samsung Display Devices Co., Ltd.

Jang-Hyuk Kwon

Min-Chul Suh

Mu-Hyun Kim

Seong-Taek Lee

Tae-Min Kang

Jun-Yeob Lee

Jun-Hyo Chung

Eung-Jin Kim

Kwan-Hee Lee

Soo-Jin Park

Byung-Doo Chin

Jin-Kyu Lee

Si-hyun Lee

Joo-sang Park

Kyu-hwan Choi

Seong-taek Lee

Lee-gon Kim

Tae-min Kang

Jae-Il Kim

Young-sook Choi

A light-emitting polymer composition for a light-emitting layer in an organic EL display device includes at least first and second light-emitting polymers having different interfacial characteristics which lower a cohesion between elements of the first and second light-emitting polymers.

Light-emitting polymer composition and organic EL display device using the same

A display device includes an underlying layer formed over a substrate; an insulating layer formed over the substrate to expose the underlying layer; and an organic EL layer formed on the exposed portion of the underlying layer, wherein a thickness of the insulating layer is formed to a predetermined thickness to prevent defects in the organic EL layer that can occur in an edge portion of the exposed portion.

Method for fabricating a display device

Organic EL display device

Organic EL display device having an organic EL layer formed on an exposed underlying layer

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 thermal imaging operating, can be improved.

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

A novel phosphorescent material containing an iridium metal compound and an organic electroluminescent device using the same are provided. When used for an emissive layer of an organic electroluminescent device, the phosphorescent material offers greater luminescent efficiency and improved driving voltage characteristics, compared to conventional red luminescent materials, and reduces the amount of power consumed in the organic electroluminescent device.

Red luminescent compound and organic electroluminescent device using the same

Organic EL display device and method of manufacturing the same

An organic EL display device includes first and second electrodes with a light-emitting layer interposed therebetween and an organic soluble derivative layer arranged between the first electrode and the light-emitting layer, wherein the organic soluble derivative layer prevents impurities from being diffused to the light-emitting layer.

Organic EL display device having organic soluble derivative layer

A method for manufacturing a color filter by thermal transfer using a laser beam with uniform energy distribution. The method includes forming a black matrix pattern on a substrate by photolithography. A transfer film having thermal color layers is placed on the substrate, and a laser beam with uniform energy distribution irradiates the transfer film to transfer the color layers onto the substrate. The substrate onto which the color layer has been transferred, is cured at 200&tilde;300&deg; C. Therefore, by using the laser beam with uniform energy distribution, or a laser beam which scans by dithering, for the thermal transfer, the quality of an image formed at the edges of the is improved and the surface roughness is reduced, resulting in an excellent color filter.

Method for manufacturing color filter

A donor film for a color filter is provided. The donor film includes a support layer, a light absorbing layer and a transfer layer, wherein the transfer layer comprises an acryl resin represented by the following formula (1) as a bonding resin: ##STR1## where R.sub.1 indicates a hydrogen or methyl group; R.sub.2 indicates C.sub.1 .about.C.sub.12 alkyl, C.sub.2 .about.C.sub.10 hydroxyalkyl, substituted or unsubstituted aromatic ring, C.sub.5 .about.C.sub.10 cycloalkyl or benzyl group; R.sub.3 indicates C.sub.1 -C.sub.12 alkyl, substituted or unsubstituted aromatic ring, C.sub.5 .about.C.sub.10 cycloalkyl or benzyl group; X indicates a vinyl group, epoxy group or hydrogen atom; and 0.1.ltoreq.a.ltoreq.0.65, 0.3.ltoreq.b.ltoreq.0.8 and 0.ltoreq.c.ltoreq.0.2 (Here, a, b and c denote mole fractions, and the sum of a, b and c is 1). According to the manufacturing process of a color filter using a donor film of the present invention, only transfer and curing processes are required for each color, and also the color layers may be cured all at once, if necessary, to thereby largely reduce the number of processes. Thus, the color filter using the donor film is easily manufactured.

Donor film for color filter

Growing community of inventors

Suwon, South Korea

Jang-Hyuk Kwon