Electrochromic glazing pane
AssigneeSaint-Gobain Vitrage
InventorsPhilippe Macquart, Xavier Ripoche
Life of this patent
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Abstract
This invention concerns an electrochromic pane comprising a principal functional film constituted of a material which, under the effect of an electric current, is capable of reversibly inserting cations and which has characteristics of coloration and/or transmission in certain wavelengths of electromagnetic radiation that differ for its inserted and deinserted states. Said principal functional film has a quasi-columnar structure, with axes of growth of the columns parallel to straight lines contained within a dihedron, the opening of which is less than 20.degree., and the bisector plane of which makes an acute angle with the substrate.
Claims23
An electrochromic pane comprising:
- (i) a principle functional film comprising a material capable of reversibly inserting cations under the effect of an electric current and has different coloration for its inserted and deinserted states;
- (ii) a counter-electrode comprising a material capable of reversibly inserting cations under the effect of an electric current;
- and
- (iii) a substrate;
- wherein said principle functional film has a structure with growth axes of columns parallel to straight lines contained in a dihedron, the opening of said dihedron is less than 20.degree., and the bisector plain of said dihedron makes an acute angle of less than 40.degree. with said substrate, and
- said pane, in at least its colored state, has anisotropic optical performances.
An electrochromic pane comprising:
- (i) a principle functional film comprising a material capable of reversibly inserting cations under the effect of an electric current and has different coloration for its inserted and deinserted states;
- (ii) a counter-electrode comprising a material capable of reversibly inserting cations under the effect of an electric current;
- (iii) a substrate;
- (iv) a first transparent electrically conducting film;
- and
- (v) a second transparent electrically conducting film;
- wherein said principle functional film has a structure with growth axes of columns parallel to straight lines contained in a dihedron, the opening of said dihedron is less than 20.degree., and the bisector plain of said dihedron makes an acute angle of less than 40.degree. with said substrate,
- said pane, in at least its colored state, has anisotropic optical performances, and
- wherein said principle functional film and said counter-electrode are between said first and second transparent electrically conducting films.
Dependencies are inferred from the claim text.