Methods for preparing optical ink, methods for preparing monodisperse solution of zirconium dioxide, and display devices
AssigneeShenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsMiao Duan, Miao Zhou, Lixuan Chen
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Abstract
Provided are methods for preparing optical ink, methods for preparing a monodisperse solution of zirconium dioxide, and display devices. A corresponding zirconium dioxide hydrosol is prepared by an aqueous solution method, and reactants are added to the zirconium dioxide hydrosol for multi-step reactions to obtain a transparent modified nano zirconium dioxide disperse solution. Then monomer, photoinitiator, solvent, and other functional additive are added to the nano zirconium dioxide disperse solution to obtain optical ink of the desired specification.
Claims13
A method for preparing a monodisperse solution of nano zirconium dioxide, comprising steps of:
- a), providing a zirconium oxychloride solution, and adding sodium hydroxide to the zirconium oxychloride solution to obtain a first solution;
- b), transferring the first solution to a first reaction condition where the first solution reacts under protection of a liquid atmosphere to obtain a second solution;
- c), taking out the second solution for restoring to room temperature to obtain a nano zirconium dioxide sol;
- d), resting the nano zirconium dioxide sol after adding cyclohexane to the nano zirconium dioxide sol, and adding isopropanol to the rested nano zirconium dioxide sol to obtain a third solution;
- e), separating the third solution to obtain a zirconium oxide precipitate;
- f), adding an amount of the zirconium oxide precipitate to a first medium for dispersion to obtain a dispersion solution, and adding an acidic regulator to the dispersion solution to obtain a fifth solution;
- and
- g), stirring the fifth solution after adding silane coupling agent to the fifth solution, and then resting the stirred fifth solution to obtain the monodisperse solution of nano zirconium dioxide;
- wherein a molar ratio of the zirconium oxychloride to the sodium hydroxide is 1:1, and in the first reaction condition a reaction temperature ranges from 100° C. to 400° C. and a reaction pressure ranges from 1 MPa to 5 MPa.
A method for preparing a monodisperse solution of nano zirconium dioxide, comprising steps of:
- a), providing a zirconium oxychloride solution, and adding sodium hydroxide to the zirconium oxychloride solution to obtain a first solution;
- b), transferring the first solution to a first reaction condition where the first solution reacts under protection of a liquid atmosphere to obtain a second solution;
- c), taking out the second solution for restoring to room temperature to obtain a nano zirconium dioxide sol;
- d), resting the nano zirconium dioxide sol after adding cyclohexane to the nano zirconium dioxide sol, and adding isopropanol to the rested nano zirconium dioxide sol to obtain a third solution;
- e), separating the third solution to obtain a zirconium oxide precipitate;
- f), adding an amount of the zirconium oxide precipitate to a first medium for dispersion to obtain a dispersion solution, and adding an acidic regulator to the dispersion solution to obtain a fifth solution;
- and
- g), stirring the fifth solution after adding silane coupling agent to the fifth solution, and then resting the stirred fifth solution to obtain the monodisperse solution of nano zirconium dioxide;
- wherein, in the step d), 1 ml to 5 ml of the cyclohexane is added to 5 ml of the nano zirconium dioxide sol, and 1 ml to 20 ml of the isopropanol is added.
Dependencies are inferred from the claim text.