Solvent-free curable composition, cured film, color filter, and display device
A solvent-free, composition-based technology, applied in the field of solvent-free curable compositions, which can solve problems such as thickness deviation, reduction of elapsed single-layer film, drying of nozzles, etc., and achieve the effect of high color, high brightness and color
Pending Publication Date: 2021-01-29
SAMSUNG SDI CO LTD
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Problems solved by technology
[0007] However, since the solvent-based ink composition not only has problems such as drying of the nozzle due to volatilization of the solvent during ink ejection and thus clogging of the nozzle, shrinkage of the monolayer film with the lapse of time after ink ejection, etc., but also has serious problems after curing. The disadvantage of the thickness deviation and thus it is difficult to apply to the actual process, so recently, the solvent-free ink composition which does not contain any solvent has been preferred
Method used
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example 1 to example 9 and comparative example 1 and comparative example 7
[0122] The following components were used to prepare the solventless curable compositions according to Examples 1 to 9 and Comparative Example 1 and Comparative Example 2 having the compositions shown in Table 1 and Table 2, respectively.
[0123] Specifically, the quantum dot dispersion (26 wt% to 27 wt% solid content) dispersed in cyclohexyl acetate in a flask was stirred under nitrogen atmosphere at 80°C for 20 hours to obtain surface-modified quantum dot dispersion liquid. The resulting product was cooled to room temperature, and the quantum dot dispersion was added to cyclohexane followed by centrifugation. The precipitated quantum dot powder was separated from cyclohexane by centrifugation. The clear solution in the upper portion was discarded and discarded, and the precipitate was dried in a vacuum oven for 24 hours. The quantum dot powder was sampled to HDDA (1,6-hexanediol diacrylate) monomer at a predetermined concentration, and then stirred for 12 hours to obtain ...
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Abstract
The invention discloses a solvent-free curable composition, a cured film manufactured using the same, a color filter including the cured film, and a display device including the color filter. The solvent-free curable composition includes: (A) quantum dots; (B) a polymerizable monomer; and (C) a light diffusing agent having a primary particle diameter of 50 nm to 200 nm and a secondary particle diameter of 120 nm to 250 nm. Solvent-free curable compositions containing quantum dots can reduce density and redisperse in a short time while maximizing the scattering effect of quantum dots. Accordingly, high brightness and high color of a color filter including a cured film manufactured using the composition can be achieved.
Description
[0001] This application claims priority and benefit from Korean Patent Application No. 10-2019-0088405 filed with the Korean Intellectual Property Office on July 22, 2019, the entire contents of which are incorporated herein by reference. technical field [0002] The present disclosure relates to a solventless curable composition, a cured film manufactured using the same, a color filter including the cured film, and a display device including the color filter. Background technique [0003] In general, a color filter applied to a display is formed by using a photosensitive resist composition, forming a desired pattern through an exposure process by using a photomask and then dissolving and removing non-exposed regions through a development process. The material of the color filter may require alkali solubility, high sensitivity, adhesion to a substrate, chemical resistance, heat resistance, and the like. For coloring materials, pigments or dyes are usually used. [0004] How...
Claims
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IPC IPC(8): G03F7/027G03F7/004C09D11/30C09D11/38G02B5/20
CPCG03F7/027G03F7/004C09D11/30C09D11/38G02B5/20G03F7/0007C08K3/013C08K5/09C08K5/17G02F1/133514G02F1/01791
Inventor 金东俊姜龙熙金美善金钟基朴民志李范珍林知泫崔美贞
Owner SAMSUNG SDI CO LTD