The influence of aggregation behavior of novel quinophthalone dyes on optical and thermal properties of LCD color filters

Choi, Jun; Kim, Se Hun; Lee, Woo‐Sung; Chang, Jae Bok; Namgoong, Jin Woong; Kim, Young Hoon; Han, Sang Hun; Kim, Jae Pil

doi:10.1016/j.dyepig.2013.09.024

Cited by 24 publications

(13 citation statements)

References 33 publications

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“…Transparent glass substrates were purchased from Paul Marienfeld GmbH & CO. KG. and acrylic binder of LC20160 was supplied by SAMSUNG Cheil industries Inc. 1 H NMR spectra were recorded by a Bruker Avance 500 spectrometer at 500 MHz using chloroform-d and TMS as the solvent and internal standard. Matrix assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectra were recorded by a Voyager-DE STR Biospectrometry Workstation with a-cyano-4-hydroxycinnamic acid (CHCA) as the matrix.…”

Section: Experimental Materials and Instrumentationsmentioning

confidence: 99%

“…In previous studies [1][2][3][5][6][7][8], we investigated dye-based color filters with some novel perylene-based red dyes. Perylene-based dyes are advantageous as optical materials in that they have high color strength and stability.…”

Section: Introductionmentioning

confidence: 99%

“…Since the late 20th century, various types of flat-panel displays have been invented and widely used, but LCD modules are the most popular and have a great market share [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of novel perylene dyes with new substituents at terminal-position as colorants for LCD color filter

Kim

Choi

Namgoong

et al. 2015

J Incl Phenom Macrocycl Chem

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Six novel red perylene dyes were synthesized by modifying the bay-and terminal-positions of perylene main body to improve the optical performances of liquid crystal display (LCD) color filters. The absorption properties, solubility in industrial solvents and thermal stabilities of the dyes were examined to evaluate the dyes for dye-based LCD color filter. Mill bases and spin-coated color filters were formulated and fabricated using the synthesized dyes. Transmittance, dye aggregation and thermal stabilities of the prepared color filters were investigated using a color spectrophotometer. Geometric structures of the synthesized dyes were optimized by using Gaussian program. Five of the synthesized dyes showed acceptable optical properties as colorants for LCD color filters. Also, the synthesized dyes and prepared color filters exhibited suitable thermal stability for the application. Furthermore, the prepared color filters exhibited superior transmittances than pigment-based color filters at 650 nm. Their physical properties were closely related with chemical structures investigated by geometry optimization.

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Section: Experimental Materials and Instrumentationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of novel perylene dyes with new substituents at terminal-position as colorants for LCD color filter

Kim

Choi

Namgoong

et al. 2015

J Incl Phenom Macrocycl Chem

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“…Many works have shown that the conformation of metalorganic complexes is usually regulated by the solvent-based intermediate species or the effects of ligand/solvent substitution on the crystallization or assembly processes [7]. For instance, solvent molecules may produce dramatic effects on ligand placement orientations [8], final network structures [9] and even colors of the crystals [10], and they often serve as structure-directing agents or templates and generally located within the channels of coordination polymers (CPs) [11]. Thus far, studies on this subject focus on the impacts of different reaction solvent systems on the crystallization processes of supramolecular isomerisms [12], in which solvent molecules actually act as a coordination ligand or a template in determining the isomerism.…”

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confidence: 99%

0D and 1D PbII complexes constructed from pyridyldicarboxamide by varying the ratios of mixed solvent

Zhang

Liu

et al. 2014

Inorganic Chemistry Communications

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“…Therefore, the usage of basic dyes has generally been restricted to traditional applications. Without a sufficient solubility in organic industrial solvents, it is difficult to use basic dyes as colouring materials for electronic devices due to the inferior process efficiency of the dyes, as well as optical performance limitations, such as chromaticity range34.…”

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confidence: 99%

Simple modification of basic dyes with bulky & symmetric WCAs for improving their solubilities in organic solvents without color change

Kim

Hwang

Woo

et al. 2017

Sci Rep

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A simple and easy solubility enhancement of basic dyes was performed with bulky and symmetric weakly coordinating anions (WCAs). The WCAs decreased the ionic character of the dyes by broadening the partial charge distribution and causing a screening effect on the ionic bonding. This new modification with WCAs has advantages in that it has no influence on the optical properties of the dyes. The solubilities of unmodified and modified dyes were tested in several organic solvents. X-ray powder diffraction patterns of the dyes were measured. Color films were prepared with the dyes and their color loci were analyzed to evaluate the optical properties. By the modification with WCAs, commercial basic dyes showed sufficient solubilities for be applied to various applications while preserving their superior optical properties.

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The influence of aggregation behavior of novel quinophthalone dyes on optical and thermal properties of LCD color filters

Cited by 24 publications

References 33 publications

Synthesis and characterization of novel perylene dyes with new substituents at terminal-position as colorants for LCD color filter

Synthesis and characterization of novel perylene dyes with new substituents at terminal-position as colorants for LCD color filter

0D and 1D PbII complexes constructed from pyridyldicarboxamide by varying the ratios of mixed solvent

Simple modification of basic dyes with bulky & symmetric WCAs for improving their solubilities in organic solvents without color change

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