Full color organic electroluminescence display devices by thermal patterning using laser and method for manufacturing the same
An organic electroluminescence display device made by a laser induced thermal imaging process has a substrate having first and second electrode layers, and an organic layer having red, green, and blue light-emitting layers between the electrode layers. Thermosetting light-emitting materials are used to form the red, green, and blue light-emitting layers, and a laser is then selectively irradiated onto a light-to-heat conversion layer formed on the substrate to deliver heat energy converted from light energy through the light-to-heat conversion layer to the thermosetting light-emitting materials so that curing is progressed to form patterned light-emitting layers. In accordance with the fabrication method of the present invention, the light-emitting materials may be patterned using a laser, thereby fabricating a large scaled organic electroluminescence display device and simplifying the process by not using a mask when the light-emitting layers are formed.
Samsung SDI Co., Ltd.
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Seong-Taek Tae-Min Myung-Won Nam-Choul Byung-Doo Min-Chul Mu-Hyun
Lee Kang Song Yang Chin Suh Kim