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Donor substrate for laser transfer and organic electroluminescence display

A donor substrate and laser transfer printing technology, which is applied in the direction of electroluminescent light sources, luminescent materials, electric solid devices, etc., can solve the problems of destroying active materials, affecting the stability or life of devices, etc.

Active Publication Date: 2005-06-01
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent methods, impurities are introduced due to the mixing of a photoacid generator to cure the exposed parts, the superacid generated at the time of curing destroys other active materials, and the influx of impurities occurs ( inflow), all of which unduly affect the stability or lifetime of the device

Method used

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  • Donor substrate for laser transfer and organic electroluminescence display
  • Donor substrate for laser transfer and organic electroluminescence display
  • Donor substrate for laser transfer and organic electroluminescence display

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Embodiment Construction

[0023] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

[0024] figure 1 It is a cross-sectional view of the structure of a full-color organic electroluminescent display device.

[0025] refer to figure 1 , patterning and forming the first electrode 200 on the insulating substrate 100 . For a bottom emission display device, the first electrode 200 is formed of a transparent electrode. For a top emission display device, the first electrode 200 is formed of a conductive metal including a reflective layer.

[0026] A pixel definition layer (PDL) 300 of insulating material is formed on the first electrode to define a pixel area and insulate the first electrode 200 from the emission layer.

[0027] In a pixel region defined by the pixel definition layer 300, an organic layer 330 including an organic emission layer is formed. The organic layer 330 includes at least one of a hole injection layer, a hole transport l...

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Abstract

A donor substrate for laser transfer is provided, comprising: a base film; a light-to-heat conversion layer formed on the base film; and a transfer layer formed on the light-to-heat conversion layer. The transfer layer includes a thermosetting electroluminescence material, and an organic electroluminescence display device is fabricated using the transfer substrate. Thus, R, G, B emission layers with fine patterns are simply formed by a thermal curing process after laser transfer. As a result, the emission layer is not damaged, and the manufacturing cost of the full-color organic electroluminescent display device is reduced due to the application of a simplified mask process. The donor substrate has advantages when used in the manufacture of large-scale organic electroluminescent display devices.

Description

[0001] This application claims Serial No. 2003-86136 filed with the Korean Intellectual Property Office on November 29, 2003 and entitled "Donor film for laser-induced thermal imaging method and electroluminescent display manufactured using the same" Device" patent application, the entire contents of which are hereby incorporated by reference. technical field [0002] The invention relates to a donor substrate for laser transfer printing and an organic electroluminescent display device manufactured using the donor substrate. More specifically, the present invention relates to a donor substrate for forming an organic layer of an organic electroluminescent display device, and an organic electroluminescent display device using the same. Background technique [0003] Typically, an organic electroluminescent (EL) display device is composed of several layers, such as an anode, a cathode, a hole injection layer, a hole transport layer, an emissive layer, an electron transport layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/10B32B9/00B32B27/00B32B33/00C09K11/06H01L27/32H01L51/00H01L51/50H01L51/56H05B33/00H05B33/12H05B33/14
CPCY10S428/917H10K59/35H10K71/18H10K71/40H05B33/10H10K71/00
Inventor 杨南喆李城宅徐旼撤姜泰旻金茂显陈炳斗
Owner SAMSUNG DISPLAY CO LTD
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