EP0113237A1 — Method for manufacturing a multicolour filter and…

Claim 1

Independent Claim 40 words

A method of manufacturing a multicolour filter comprising the steps of forming an electroconductive layer having a given pattern on an electrically non-conductive surface of a substrate, and forming a coloured layer on said electroconductive layer by electrodepositing a polymer.

Claim 2

Independent Claim 40 words

A method of manufacturing a multicolour filter comprising the steps of forming an electroconductive layer having a given pattern on an electrically non-conductive surface of a substrate, and forming a coloured layer on said electroconductive layer by electrodepositing a polymer.

Claim 3

Independent Claim 41 words

A method of manufacturing a multicolour filter comprising the steps of forming a plurality of electroconductive layers electrically insulated from each other on a substrate and forming different coloured layers on different electroconductive layers by electro- depositing a polymer or polymers.

Claim 4

Independent Claim 41 words

A method of manufacturing a multicolour filter comprising the steps of forming a plurality of electroconductive layers electrically insulated from each other on a substrate and forming different coloured layers on different electroconductive layers by electro- depositing a polymer or polymers.

Claim 5

Dependent Claim 42 words

A method as claimed in claim 1 or 2 in which the or each coloured layer is composed of a mixture of an electrodeposited polymer and colouring matter which is electrolytically deposited from a solution containing the polymer and the colouring matter.

Claim 6

Dependent Claim 14 words

A method as claimed in claim 3 in which said colouring matter is water-soluble.

Claim 7

Dependent Claim 23 words

A method as claimed in claim 4 in which said water-soluble colouring matter is a pigment, a dispersion dye or a solvent dye.

Claim 8

Dependent Claim 42 words

A method as claimed in claim 1 or 2 in which the coloured layer is formed by electrodepositing the polymer on the electroconductive layer from a solution containing the polymer and thereafter dyeing the electrodeposited polymer in a solution containing a dye.

Claim 9

Dependent Claim 40 words

A method as claimed in claim 1 or 2 in which the or each conductive layer is formed substantially of tin oxide or indium oxide and the coloured layer is anodically deposited from a solution including a negatively charged polymer.

Claim 10

Dependent Claim 24 words

A method as claimed in claim 7 in which the negatively charged polymer is a polyester resin, an acrylic resin or a melamine resin.

Claim 11

Independent Claim 145 words

A method of manufacturing a multicolour filter comprising the the steps of forming a plurality of electroconductive layers on a non-conductive surface of a substrate, immersing said substrate in an electrodeposition bath containing polymer resin and a first colouring matter, applying a voltage to a first group of said electroconductive layers so that said polymer resin together with said colouring matter is electrodeposited on said first group of electroconductive layers to form a first coloured layer, immersing said substrate in another electrodeposition bath containing polymer resin and second colouring matter having a different colour from the first colouring matter, and applying a voltage to a second group of electroconductive layers so that said polymer resin together with said second colouring matter is electrodeposited on said second group of electroconductive layers to form a second coloured layer having a different colour to said first coloured layer.

Claim 12

Independent Claim 145 words

A method of manufacturing a multicolour filter comprising the the steps of forming a plurality of electroconductive layers on a non-conductive surface of a substrate, immersing said substrate in an electrodeposition bath containing polymer resin and a first colouring matter, applying a voltage to a first group of said electroconductive layers so that said polymer resin together with said colouring matter is electrodeposited on said first group of electroconductive layers to form a first coloured layer, immersing said substrate in another electrodeposition bath containing polymer resin and second colouring matter having a different colour from the first colouring matter, and applying a voltage to a second group of electroconductive layers so that said polymer resin together with said second colouring matter is electrodeposited on said second group of electroconductive layers to form a second coloured layer having a different colour to said first coloured layer.

Claim 13

Independent Claim 100 words

A method of manufacturing a multicolour filter comprising the steps of forming a plurality of electroconductive layers on a non-conductive surface of a substrate, immersing said substrate in an electrodeposition bath containing polymer resin, applying a voltage to a first group of electroconductive layers so that a polymer resin layer is electrodeposited thereon, dyeing said polymer resin layer to a first colour, electrodepositing a polymer resin layer on a second group of electroconductive layers from the electrodeposition bath, and dyeing said polymer resin layer on said second group of electroconductive layers to a second colour different from the first colour.

Claim 14

Independent Claim 100 words

A method of manufacturing a multicolour filter comprising the steps of forming a plurality of electroconductive layers on a non-conductive surface of a substrate, immersing said substrate in an electrodeposition bath containing polymer resin, applying a voltage to a first group of electroconductive layers so that a polymer resin layer is electrodeposited thereon, dyeing said polymer resin layer to a first colour, electrodepositing a polymer resin layer on a second group of electroconductive layers from the electrodeposition bath, and dyeing said polymer resin layer on said second group of electroconductive layers to a second colour different from the first colour.

Claim 15

Independent Claim 94 words

A method of manufacturing a multicolour display device comprising the steps of forming a plurality of display electrodes on a first substrate, selectively forming a colour filter on each display electrode by electrodepositing a polymer together with colouring matter so that the display electrodes have different colours, forming a counter electrode on a surface of a second substrate, and sandwiching a display material between said first substrate and said second substrate, said display material serving, in operation, as a light shutter controlled by the voltage applied between said display electrodes and the counter electrode.

Claim 16

Independent Claim 94 words

A method of manufacturing a multicolour display device comprising the steps of forming a plurality of display electrodes on a first substrate, selectively forming a colour filter on each display electrode by electrodepositing a polymer together with colouring matter so that the display electrodes have different colours, forming a counter electrode on a surface of a second substrate, and sandwiching a display material between said first substrate and said second substrate, said display material serving, in operation, as a light shutter controlled by the voltage applied between said display electrodes and the counter electrode.

Claim 17

Dependent Claim 42 words

A method as claimed in claim 11 in which said display material is a twisted nematic field effect mode liquid crystal material or a negative type guest-host liquid crystal material or a dynamic scattering mode liquid crystal material or an electrochromic material.

Claim 18

Dependent Claim 42 words

Method for manufacturing multicolour filter comprising the steps of: forming a conductive thin film layer having a given pattern on a substrate a surface of which is electrically insulated; forming a coloured layer by electrodepositing polymers to said conductive thin film layer.

Claim 19

Dependent Claim 42 words

Method for manufacturing multicolour filter comprising the steps of: forming a conductive thin film layer having a given pattern on a substrate a surface of which is electrically insulated; forming a coloured layer by electrodepositing polymers to said conductive thin film layer.

Claim 20

Independent Claim 41 words

A method for manufacturing a multicolour filter comprising the steps of: forming plural electroconductive layers being insulated from each other on a substrate then repeatedly forming a coloured layer made of a polymer which is selectively electrodeposited on the electroconductive layers.

Claim 21

Independent Claim 41 words

A method for manufacturing a multicolour filter comprising the steps of: forming plural electroconductive layers being insulated from each other on a substrate then repeatedly forming a coloured layer made of a polymer which is selectively electrodeposited on the electroconductive layers.

Claim 22

Independent Claim 108 words

A method for manufacturing a multicolour display device using a multicolour filter comprising the steps of: forming a plurality of display electrodes on a first substrate; dividing said plurality of display electrodes by different colours by selectively electrodepositing polymer resin together with different colouring matters to said display electrodes; forming a counter electrode on a surface of a second substrate: sticking said first substrate and second substrate together with facing said display electrodes and counter electrode and with leaving a space therebetween and filling a display material in said space said display materials serving as light shutter controlled by voltage applied between said first electrodes and second electrode.

Claim 23

Independent Claim 108 words

A method for manufacturing a multicolour display device using a multicolour filter comprising the steps of: forming a plurality of display electrodes on a first substrate; dividing said plurality of display electrodes by different colours by selectively electrodepositing polymer resin together with different colouring matters to said display electrodes; forming a counter electrode on a surface of a second substrate: sticking said first substrate and second substrate together with facing said display electrodes and counter electrode and with leaving a space therebetween and filling a display material in said space said display materials serving as light shutter controlled by voltage applied between said first electrodes and second electrode.

Method for manufacturing a multicolour filter and a multicolour display device

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