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Photo-thermal conversion piece and producing method of organic electroluminescence raw material piece and organic electroluminescence device using the same

A light-to-heat conversion and light-to-heat conversion layer technology, which is applied in the direction of luminescent materials, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve the problems of reduced yield and pixel defects, and achieve the effect of improving yield

Inactive Publication Date: 2011-08-10
UDC IRELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in these cases, as in Figure 1A ~ Figure 1B As shown, when a plurality of insulating layers 4 and the like are formed on the substrate 6 to be transferred so that there is a step structure of 0.5 μm to 3 μm, there will be an organic electroluminescence material layer (transfer layer) by using the method of the prior art literature. 3 When the step structure cannot be followed, the organic electroluminescent material layer is cut, or a gap is generated between the substrate and the organic electroluminescent material layer, as a result, pixel defects may occur, and the yield may decrease

Method used

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  • Photo-thermal conversion piece and producing method of organic electroluminescence raw material piece and organic electroluminescence device using the same
  • Photo-thermal conversion piece and producing method of organic electroluminescence raw material piece and organic electroluminescence device using the same
  • Photo-thermal conversion piece and producing method of organic electroluminescence raw material piece and organic electroluminescence device using the same

Examples

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manufacture example 1

[0169] -Preparation of Coating Liquid A for Light-to-Heat Conversion Layer-

[0170] Each component of the following composition was mixed with stirring with a stirrer, and the coating liquid A for light-heat conversion layers was prepared.

[0171] [Composition of Coating Liquid A for Light-to-Heat Conversion Layer]

[0172] ・Infrared absorbing dye (“NK-2014”, manufactured by Nippon Photochrome Co., Ltd., cyanine dye)…7.6 parts by mass

[0173] ・Adhesive (Rikacoat SN-20F, manufactured by Nippon Chemical Co., Ltd., polyimide resin)...29.3 parts by mass

[0174] · Exxon Naphtha (Exxon Naphtha No-5 manufactured by Exxon Chemical Co., Ltd.)...5.8 parts by mass

[0175] ・N-Methylpyrrolidone (boiling point: 203°C)…1,500 parts by mass

[0176] ・Surfactant (Megafack F-177PF, manufactured by Dainippon Ink Science Industry Co., Ltd., fluorine-based surfactant)...0.5 parts by mass

manufacture example 2

[0178]

[0179] As a substrate, on one surface of a polyethylene terephthalate (PET) film with a thickness of 75 μm, the resulting light-to-heat conversion layer was coated using a spin coater (MSA-20 manufactured by Mikasa Co., Ltd.). After liquid A, it was dried in an oven at 120° C. for 2 minutes to form a light-to-heat conversion layer so as to have a thickness of 0.2 μm, thereby producing a light-to-heat conversion sheet 1 . The light-to-heat conversion layer contained 8% by mass of N-methylpyrrolidone as measured by gas chromatography (GC-2010 manufactured by Shimadzu Corporation). In addition, the thickness of the light-to-heat conversion layer was obtained by observing the cross-section of the light-to-heat conversion layer with a scanning electron microscope (S-4100 manufactured by Hitachi, Ltd.).

[0180]

[0181] On the light-to-heat conversion layer of the light-to-heat conversion sheet 1, mCP (1,3-bis(carbazol-9-yl)benzene), which is represented by the followi...

manufacture example 3

[0187] An organic electroluminescence raw material sheet 2 was produced in the same manner as in Production Example 2 except that the content of the thermally vaporized substance was 4% by mass.

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Abstract

The invention provides a photo-thermal conversion piece which is used for producing an organic electroluminescence device by means of a laser thermal transfer method. The photo-thermal conversion piece comprises a substrate and a photo-thermal conversion layer on the substrate. The photo-thermal conversion layer has heat gasification substance having a 0.5-10% mass and a boiling point of at least 70 DEG. A producing method of an organic electroluminescence device comprises a laminating process where the organic electroluminescence raw material piece having an organic electroluminescence luminescent material layer on the photo-thermal conversion layer and the substrate are laminated to form a laminating body, and a transfer printing process where light is irradiated to the photo-thermal conversion layer of the laminating body and the substrate is printed with the organic electroluminescence luminescent material layer through transfer.

Description

technical field [0001] The present invention relates to a light-to-heat conversion sheet suitable for manufacturing an organic electroluminescent device (hereinafter sometimes referred to as "organic EL device" or "organic electroluminescent device") by laser thermal transfer method, and an organic field using the same. A luminescence raw material sheet and a method for manufacturing an organic electroluminescence device. Background technique [0002] Organic electroluminescent devices are self-luminous display devices, and are expected to be used for displays or lighting. For example, organic electroluminescent displays have advantages in display performance, such as high visibility and no viewing angle dependence, compared with conventional CRTs or LCDs. In addition, there is an advantage that the display can be made lighter and thinner. On the other hand, in addition to the advantages of light weight and thin layer, organic electroluminescent lighting can also realize l...

Claims

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Application Information

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IPC IPC(8): H01L51/52H01L51/56H01L27/32C09K11/06
CPCH10K50/84H10K71/00
Inventor 高桥俊朗白崎裕一
Owner UDC IRELAND