869276-73-3Relevant academic research and scientific papers
Low dielectric dye type black matrix for color filter on array
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Paragraph 0049; 0140-0142, (2021/03/23)
The present invention relates to a low dielectric dye type black matrix for a color filter array structure. More specifically, the present invention relates to a tetrabenzoate (tetrabenzocorrolazine) dye having high color intensity, a broad absorption range, low dielectric and high durability, a photosensitive resin composition including the dye, a black matrix including the dye, and a color filter including the black matrix.
HIGH TRANSMISSIONAL YELLOW DYE FOR LCD AND SYNTHETIC METHOD THEREOF
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Paragraph 0054-0057, (2020/03/23)
The present invention relates to a highly transmissive yellow dye for LCD and a preparation method thereof, and more specifically, to a highly transmissive yellow dye for LCD, a dye dispersion body including the dye, a coloring composition including the dye dispersion body, a color filter including the coloring composition, and a method of preparing the dye. The method of preparing a highly transmissive yellow dye for LCD according to one embodiment of the present invention includes a step of forming a first intermediate; a step of forming a second intermediate; and a step of forming a dye compound.
A study on the fluorescence property of the perylene derivatives with methoxy groups
Kim, Jeong Yun,Woo, Sung Wun,Namgoong, Jin Woong,Kim, Jae Pil
, p. 196 - 205 (2017/09/22)
Perylene-based dyes with methoxy groups at various positions were synthesized to understand the effect of the methoxy groups on the fluorescence quenching. Additionally, perylene-based dyes with ethyl groups in place of the methoxy groups were also synthesized to serve as control. Absorption and fluorescence properties of the dyes were measured, and then, density functional theory (DFT) and time-dependent density functional theory (TD-DFT) simulations were conducted. The methoxy groups of terminal-substituents had a lesser effect on fluorescence quenching than the methoxy groups of bay-substituents. Moreover, only the methoxy groups at the para-position of the bay-substituents strongly affected on fluorescence quenching. These results showed that the fluorescence of the dyes are influenced by the electron donating effect of the methoxy groups when the methoxy groups are involved in the main conjugation systems of the dyes.
The effect of fluorescence of perylene red dyes on the contrast ratio of LCD color filters
Kim, Jeong Yun,Sakong, Chun,Choi, Sang-A,Jang, Hyeyoun,Kim, Se Hun,Chang, Kil Seong,Han, Myoung Sic,Lee, Jeong Su,Kim, Jae Pil
, p. 293 - 300 (2016/05/19)
Dye-based and pigment-dye hybrid color filters are recommended to overcome the drawbacks such as light scattering of traditional pigment-based color filters. However, dyes used as colorants for LCD color filters may exhibit strong fluorescence. Fluorescence lowers the contrast ratio of color filters by increasing brightness in the full-black state and affects optical performance of displays. In this study, the correlation between dye fluorescence and the optical properties of color filters was investigated. Six perylene-based dyes were synthesized, and dye-based and pigment-dye hybrid color filters were prepared with each dye. The fluorescence properties of the synthesized dyes in solution and the prepared color filters were evaluated. The maximum brightness and the contrast ratio of the color filters were measured, from which the minimum brightness of the color filters was calculated. All dye-based and pigment-dye hybrid color filters showed greater minimum brightness than pigment-based one due to emission in the visible region.
Cell membrane permeable fluorescent perylene bisimide derivatives for cell lysosome imaging
Zhang, Shuchen,Duan, Wenfeng,Xi, Yanan,Yang, Tao,Gao, Baoxiang
, p. 83864 - 83869 (2016/11/09)
We have developed acid activated fluorescent probes based on amphiphilic perylene bisimide with morpholine groups on the bay (Lyso-APBI). Incorporating one morpholine group, Lyso-APBI-1 showed an acid activated fluorescence increase of 70-fold upon pH values lowering from 8.0 to 4.0. Lyso-APBI-2, with two morpholine groups on the bay of PBI, had a red-shifted emission and a 190-fold fluorescence enhancement within same pH variation range. These Lyso-APBI probes have excellent membrane permeability, low cytotoxicity, and can rapidly accumulate and specifically activate in cell lysosomes. The double morpholine moieties make Lyso-APBI probes have higher acid activation ratio and better cell lysosome specificity. Moreover, long-time cell imaging proved the relatively high photostability of Lyso-APBI probes in a harsh physiological environment.
PERYLENE BISIMIDE BASED COMPOUNDS AND DYES COMPRISING THE SAME
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Paragraph 0127-0130, (2016/12/01)
Provided in the present invention are a novel perylene bisimide-based compound and a dye including the same. A novel dye is provided. And a color filter including the dye is provided. Provided in an embodiment of the present invention is a perylene bisimide-based compound represented by following chemical formula 1. [Chemical formula 1] The dye including the perylene bisimide-based compound according to the present invention has excellent fastness like light resistance and heat resistance.
Synthesis and characterization of novel perylene dyes with new substituents at terminal-position as colorants for LCD color filter
Kim, Jeong Yun,Choi, Jun,Namgoong, Jin Woong,Kim, Se Hun,Sakong, Chun,Yuk, Sim Bum,Choi, Sang-A.,Lee, Woosung,Kim, Jae Pil
, p. 203 - 212 (2016/02/26)
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.
Pyrene fused perylene diimides: Synthesis, characterization and applications in organic field-effect transistors and optical limiting with high performance
Zhan, Xuejun,Zhang, Ji,Tang, Sheng,Lin, Yuxuan,Zhao, Min,Yang, Jie,Zhang, Hao-Li,Peng, Qian,Yu, Gui,Li, Zhen
supporting information, p. 7156 - 7159 (2015/04/27)
Three pyrene fused PDI derivatives have been obtained, in which totally different properties were observed when adopting different fusing types. For bilaterally benzannulated PDIs, through spin-coating, bottom-contact OFET devices exhibited a p-type mobility up to 1.13 cm2 V-1 s-1, with an on/off ratio of 108 in air. This journal is
Regioisomers of perylenediimide: Synthesis, photophysical, and electrochemical properties
Keerthi, Ashok,Valiyaveettil, Suresh
experimental part, p. 4603 - 4614 (2012/07/02)
A series of conjugation extended donor-acceptor 1,6- and 1,7-regiomers of perylenediimide were synthesized, separated, and characterized. The photophysical, electrochemical, and thermal properties of these compounds were investigated and compared. The absorption spectra of 1,6-substituted PDI showed blue shift as compared to its 1,7-substituted PDI. At the same time, the emission spectrum showed no significant differences among the regiomers. Both 1,6- and 1,7-regiomers were thermally stable up to 450 ?°C and showed different melting and crystallization transitions. The electrochemical studies did not show significant differences in oxidation and redox potentials owing to similar HOMO/LUMO gap of 1,6- and 1,7-regiomers, which is also supported by theoretical calculations. Comparison of properties of a series of 1,6- or 1,7-substituted PDIs showed significant differences. Such regiomerically pure compounds can offer certain advantages in applications, which are currently being investigated. ? 2012 American Chemical Society.
Synthesis and characterization of some perylene dyes for dye-based LCD color filters
Choi, Jun,Sakong, Chun,Choi, Jae-Hong,Yoon, Chun,Kim, Jae Pil
experimental part, p. 82 - 88 (2011/12/01)
Eight red perylene dyes were synthesized to improve the optical performance of LCD color filters. Among them, dyes with bulky functional substituents at the bay and terminal positions were highly soluble in cyclohexanone, the industrial solvent currently used in the pigment dispersion method. The spectral properties and thermal stability of the dye-based color filters with these dyes were examined by comparing them with pigment-based ones. The prepared color filters exhibited superior spectral properties due to the smaller particle size of the dyes, which led to less light scattering. However, their thermal stability varied with the dye structures, and only the dyes mono-substituted at the bay position had sufficient thermal stability.
