Electrophoresis display electronic ink
An electronic ink and electrophoretic display technology, applied in ink, optics, instruments, etc., can solve the problems of affecting display effect and display life, electrophoretic particle sedimentation, electrophoretic effect reduction, etc., to achieve small color particles, low response voltage requirements, Choose from a wide range of effects
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Embodiment 1
[0061] Example 1: A mixed solvent of acid dye Acid Red 1 (C.I.Acid Red 1), ethanol and aniline.
[0062] Dissolve acid red dye Acid Red 1 (C.I.Acid Red 1) in a mixed solution of ethanol and aniline (the mass ratio of ethanol and aniline is 3:1) to obtain a mixed solution with a concentration of 0.01mol / L. Acid red dyes belong to azo dyes, and each dye molecule contains 2 sodium sulfonates and one hydroxyl group. Aniline is a weakly basic solvent. In a mixed solvent of ethanol and aniline, the acid red dye particles are negatively charged. Pour this solution into the electrophoresis tank shown in Figure 1.
[0063] The electrophoresis tank is composed of 2 layers of ITO conductive glass. The ITO coating on the glass faces inward, and the thickness between the two pieces of glass is about 1mm. The frame part is sealed with adhesive. The glass surface in front of the viewer is treated with ITO coating only where the image needs to be displayed. The ITO glass located on the ...
Embodiment 2
[0065] Embodiment 2: Acid dye Acid Black 1, a mixed solvent of pyridine and ethanol.
[0066] 0.1 g of acid black dye was dissolved in 10 ml of a mixed solvent of pyridine and ethanol, to obtain a mixed solution with a concentration of 10% (w / v) of acid black 1 dye. One molecule of Acid Black 1 dye contains two sodium sulfonate groups, one amino group, one nitro group, and one hydroxyl group. Pyridine is a weakly basic solvent. In pyridine, the acid red dye particles are negatively charged due to solvation. Pour this solution into the electrophoresis tank shown in Figure 1. A 2V voltage is applied between two ITO glass electrodes through a regulated DC power supply. The front electrode of the observer is positive and the back electrode is negative, and the dye undergoes electrophoresis. The image display can be observed. Reverse voltage is applied, and the dye undergoes reverse electrophoresis.
Embodiment 3
[0067] Embodiment 3: Acid dye Acid Black 1, a mixed solvent of triethylamine and tetrachloroethylene.
[0068] 0.1 g of acid black dye was dissolved in 10 ml of a mixed solvent of triethylamine and tetrachlorethylene to obtain a mixed solution of 10% (w / v) acid black 1 dye. One molecule of Acid Black 1 dye contains two sodium sulfonate groups, one amino group, one nitro group, and one hydroxyl group. Triethylamine is a weakly basic solvent. In triethylamine, the acid red dye particles are negatively charged due to solvation. Pour this solution into the electrophoresis tank shown in Figure 1. A 2V voltage is applied between two ITO glass electrodes through a regulated DC power supply. The front electrode of the observer is positive and the back electrode is negative, and the dye undergoes electrophoresis. The image display can be observed. Reverse voltage is applied, and the dye undergoes reverse electrophoresis.
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