Fluorine-substituted perylene for colour filters in lcds

Abstract

The present invention relates to fluorine-substituted perylene for colour filters in LCDs. The present invention also relates to use of fluorine-substituted perylene in color filters for liquid-crystal displays. The fluorine-substituted perylene has a following formula (I): wherein, R is H or at least one randomly substituted organic group, furthermore R1, R2, R3 and R4 is H, F, Cl, Br or a randomly substituted organic group independently from one another, and furthermore at least one selected from the groups R, R1, R2, R3 and R4 is fluorine and comprises at least one fluorine atom.

Description

technical field The present invention relates to the use of fluorine-containing perylenes in color filters for LCDs (liquid crystal displays) and also to formulations of such colorants and to their use for the production of color filters, It concerns color filters themselves, and also the new perylenes. Background technique Color filters are mainly used today in liquid crystal displays as well as in screens, color-resolving instruments and sensors. A known example is personal computers, televisions, and video cameras. There are different methods of producing color filters which differ not only in the method of color application but also in the generation of pigment patterns from the basic colors red, green and blue, together with black. The colors can be applied, for example, by coloring a base layer with the aid of soluble dyes or pigments (“dye method”, “dye dispersion method”), by screen printing of pigment pastes, pigment formulations or pigment inks , offset printing...

AI Technical Summary

Problems solved by technology

Transparency and color purity are still unsatisfactory

Furthermore, the production of mixed crystals (solid solutions) frequently causes reproducibility problems in terms of quality, which in turn can have detrimental consequences especially on transparency and color purity, but also on color intensity and light fastness

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