Samsung Mobile Display Co., Ltd.

Samsung Display Co., Ltd.

Samsung Sdi Co., Inc.

Tae-Min Kang

Seong-Taek Lee

Jae-Ho Lee

Myung-Won Song

Mu-Hyun Kim

Jin-Woo Park

Jin-Soo Kim

Byung-Doo Chin

Min-Chul Suh

Nam-Choul Yang

Jun-Yeob Lee

Seung-Mook Lee

Hun Jung Kim

Jang-Hyuk Kwon

Jin-Won Sun

Sok-Won Noh

Jun-Hyo Chung

Eung-Jin Kim

Do-Young Kim

Noh-Min Kwak

Sang-Woo Pyo

Jang-hyuk Kwon

Ho-Kyoon Chung

Sang-Bong Lee

Myung-Jong Jung

Seung-Yong Song

Hun Rae Kim

Yoon-Chang Kim

Sam-Il Kho

Young-Rag Do

Hyo-Yeon Kim

Young-Gil Kwon

Beom-Joon Kim

Jae-Bon Koo

Hee-Seong Jeong

Hye-Dong Kim

Taek Ahn

Seong Taek Lee

Hee-Cheol Kang

Sok Won Noh

Yu-Sung Cho

Dae-Hoon Kim

Jin-Wook Seong

Eung-jin Kim

Sun-Hoe Kim

Jun-hyo Chung

Byung-Doo Legal & Ip Team Corp Plan Staff Chin

An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction and a method for fabricating the same. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.

Organic electro luminescent display and method for fabricating the same

A laser irradiation device includes a laser generator for patterning and a laser generator for preheating. A laser induced thermal imaging (LITI) method, includes preparing an acceptor substrate, laminating a donor substrate on the acceptor substrate, and irradiating a laser beam onto a predetermined region of the donor substrate and carrying out transfer using a laser irradiation device having a laser generator for patterning and a laser generator for preheating. Advantageously, a laser beam having high intensity generated by the laser generator for patterning is used to prevent the transfer layer from being degraded, and a laser beam generated by the laser generator for preheating is simultaneously used for preheating so that an edge open failure does not occur and the transfer can be readily carried out even in a portion having a step of the acceptor substrate.

Laser irradiation device and laser induced thermal imaging method

An organic light-emitting display device and a method of manufacturing the same. The organic light-emitting display device has a structure including an organic layer between a pixel electrode and an opposite electrode, the organic layer including a emissive layer and an insulating layer defining a light emission area. Accordingly, the insulating layer included in the organic layer functions as a pixel-defining layer, and thus, 'edge open', which is generated when forming an emissive layer on a thick pixel-defining layer according to the comparable art, may be reduced or prevented.

Organic light-emitting display device and method of manufacturing the same

Provided are a laser induced thermal imaging (LITI) mask, a laser irradiation apparatus including the LITI mask, and a method of manufacturing an organic light emitting device by using the LITI mask. The LITI mask including an opening corresponding to a pixel region and an opening corresponding to an edge of a pixel is used to form an organic layer in an upper portion of a substrate of an organic light emitting device, thereby transferring the organic layer to an edge of the pixel region.

Laser induced thermal imaging mask, laser irradiation apparatus including the same, and method of manufacturing organic light emitting device by using the same

In a flat panel display and a method of fabricating the same, the flat panel display includes a substrate having a pixel region and alignment mark regions. The alignment mark regions are disposed at opposite sides of the pixel region and along the pixel region. A unit pixel array is arranged on the pixel region in a matrix manner. The alignment mark regions have at least one pair of alignment marks disposed thereon in an opposing manner. The alignment mark pairs are located in correspondence with respective columns of the unit pixel array.

Flat panel display and method of fabricating the same

In a laser irradiation device, a patterning method and a method of fabricating an Organic Light Emitting Display (OLED) using the same. The laser irradiation device includes a light source, a mask, a projection lens, and a Fresnel lens formed at a predetermined portion of the mask to change an optical path. When an organic layer pattern is formed using the laser irradiation device, laser radiation is irradiated onto a region of an organic layer, which is to be cut, and the laser radiation is appropriately irradiated onto a region of the organic layer, which is to be separated from a donor substrate. The laser radiation irradiated onto an edge of the organic layer pattern has a laser energy density greater than that of the laser radiation irradiated onto other portions of the organic layer pattern. As a result, it is possible to form a uniform organic layer pattern and reduce damage of the organic layer.

Laser patterning process

An organic light-emitting display apparatus includes: a plurality of thin film transistors (TFTs); a planarization layer covering the plurality of TFTs; a plurality of pixel electrodes formed on the planarization layer, each of the pixel electrodes being connected to a corresponding one of the plurality of TFTs using a via-hole passing through the planarization layer and having a light-emitting portion and a non-emitting portion, and each of the via-holes being located at a point farthest from each of the light-emitting portions surrounding the via-hole; a pixel defining layer formed on the planarization layer to respectively cover each of the via-holes and the non-emitting portions; organic layers, each organic layer including an emission layer and being disposed in a corresponding one of the light-emitting portions; and a counter electrode disposed on each of the organic layers.

Organic light-emitting display apparatus

A laser irradiation device and a method of fabricating an organic light emitting display device (OLED) using the same are disclosed. The laser irradiation device includes: a laser source generating a laser beam; a mask disposed below the laser source and patterning the beam and a projection lens disposed below the mask and determining magnification of the laser beam through the mask, wherein the laser beam penetrating the mask has different doses in at least two regions. Thus, the laser irradiation device can maximize emission efficiency and enhance the quality of a transfer layer pattern when an organic layer of the OLED is formed using the laser irradiation device.

Laser irradiation device and method of fabricating organic light emitting display device using the same

A laser irradiation device and a method of manufacturing an organic light emitting diode display device using the same. The laser radiation device prevents the scattering of the laser light into portions of the donor substrate that correspond to non-transmissive regions of a mask pattern. To reduce the scattering, the mask pattern is designed so that 1) non-transmissive regions of a surface of the mask pattern that faces the laser source have a reflective layer, 2) the surface of the mask pattern that faces the laser source is oriented to have a certain angle with respect to the laser beam axis, and 3) a surface of the mask pattern that faces the donor substrate has an anti-reflective layer. Each of these design aspects of the mask pattern prevents laser light from being scattered and prevents irradiating portions of the donor substrate that corresponds to a non-transmissive region of the mask pattern.

Laser irradiation device and method of manufacturing organic light emitting diode display device using the same

Provided is a method of fabricating an organic light emitting display. The method includes forming an organic layer pattern on a substrate by irradiating a predetermined region of a donor substrate with a laser beam using a laser irradiation apparatus, the laser irradiation apparatus having a spatial light modulator (SLM). The spatial light modulator is used to form the organic layer pattern using the LITI method. Accordingly, it is possible to adjust various types of incident light to homogeneous and to have a desired profile. Therefore, there is provided a method of fabricating an organic light emitting display which is capable of forming an organic layer pattern without using a mask.

Method of fabricating organic light emitting display

An organic light-emitting display apparatus is disclosed. The organic light-emitting display apparatus includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, where each of said first, second and third sub-pixels displays a different color, a substrate, a first electrode disposed on the substrate, a second electrode disposed on the first electrode, facing the first electrode, an organic emission layer disposed between the first electrode and the second electrode, including a first organic emission layer, a second organic emission layer, and a third organic emission layer, and an electron acceptor layer disposed between the first electrode and the second electrode configured to contact the organic emission layer, where the first organic emission layer is disposed in the first sub-pixel, the second organic emission layer is disposed in the second sub-pixel, and the third organic emission layer is commonly disposed over the first sub-pixel, the second sub-pixel, and the third sub-pixel, and where the electron acceptor layer is disposed between the first organic emission layer and the third organic emission layer in the first sub-pixel and between the second organic emission layer and the third organic emission layer in the second sub-pixel.

A donor substrate for laser induced thermal imaging and a method of fabricating an organic light emitting diode (OLED) using the donor substrate are disclosed. In one embodiment, the donor substrate includes a base film, a light-to-heat conversion layer formed on the base film, a buffer layer formed on the light-to-heat conversion layer, and a transfer layer formed on the buffer layer. The buffer layer is formed of magnesium (Mg), an Mg alloy, or magnesium oxide. In the donor substrate for laser induced thermal imaging, the buffer layer is formed between the interlayer and the transfer layer or between the light-to-heat conversion layer and the transfer layer, so that surface characteristics between the donor substrate and the transfer layer can be improved.

Donor substrate and method of fabricating organic light emitting diode using the same

An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.

Organic electroluminescent display

An organic light emitting diode (OLED) display is disclosed. In one embodiment, the OLED display includes i) a plurality of pixels comprising a blue light emitting region, a green light emitting region, and a red light emitting region on a substrate and formed by stacking a lower electrode, an organic layer, and an upper electrode. In one embodiment, the blue and green light emitting regions are formed in a microcavity structure, and the red light emitting region is formed in a non-microcavity structure.

Organic light emitting diode display

Growing community of inventors

Suwon-si, South Korea

Tae-Min Kang