Thermal transfer film and manufacturing method of OLED display using the same
A technology of thermal transfer film, light-to-heat conversion layer, applied in replication/marking methods, semiconductor/solid-state device manufacturing, nanotechnology for materials and surface science, etc., which can solve problems such as reduced dispersion and poor dispersion
Active Publication Date: 2015-11-11
CHEIL IND INC
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, due to process characteristics, carbon black tends to agglomerate, showing poor dispersibility, and will seriously reduce dispersibility when mixed with other components such as binders, photoinitiators, etc. in the preparation of light-to-heat conversion layers
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0073] 87.0 parts by weight of a binder, 19.5 parts by weight of a millbase including 12.4 parts by weight of carbon black (A1) and 0.6 parts by weight of a photoinitiator were added to 100 parts by weight of methyl ethyl ketone as a solvent. The resulting mixture was stirred for 30 minutes to prepare a composition for a light-to-heat conversion layer.
[0074] The composition was deposited onto a base film using a No. 7 wire rod coater, followed by drying in an oven at 80° C. for 2 minutes. In a nitrogen atmosphere at 300mJ / cm 2 The resulting product was cured to form a 5 μm thick light-to-heat conversion layer.
Embodiment 2 to 3
[0076] A light-to-heat conversion layer was prepared in the same manner as in Example 1 except that the carbon black listed in Table 2 was used.
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Abstract
A thermal transfer film and a method of manufacturing an OLED display, the thermal transfer film including a light to heat conversion layer, the light to heat conversion layer being formed of a composition including carbon black having an oil absorption number (OAN) of about 50 cc / 100 gram to about 120 cc / 100 gram and a mean particle size of about 40 nm to about 200 nm; and a binder.
Description
field of invention [0001] The invention relates to a thermal transfer film and a method for manufacturing an OLED display using the film. More specifically, the present invention relates to a thermal transfer film comprising a light-to-heat conversion (LTHC) layer containing an amount of carbon black having a predetermined oil absorption number (OAN) and an average particle diameter within a specified range, whereby The dispersibility of carbon black is improved, the heat conversion efficiency, adhesion and cross-cutting performance are improved, and the uniform transfer of the transfer layer is realized. Background technique [0002] In recent years, demands for compactness and high performance have been increasing in various fields including optical devices, displays, semiconductors, and biotechnology. To meet this demand, it is necessary to wire each component or form a functional film within a smaller and more uniform pattern. [0003] For this purpose, laser-induced t...
Claims
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IPC IPC(8): B41M5/42B41M5/385H01L21/77
CPCB41M5/42B41M5/38242B41M5/465B41M2205/30B41M2205/38B82Y30/00C09D133/00C09D133/04Y10S977/773B41M5/36
Inventor 朴時均朴世铉李正孝林亨泰赵成昕姜炅求
Owner CHEIL IND INC