US5320920A
Expired / Lapsed
US
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Method for producing color filter comprising an inorganic active layer and photoresist
Assignee: Nissha Printing Co Ltd
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Filing: 1989-07-29
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Granted: 1994-06-14
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Expires: 2009-07-29
Abstract
Abstract The method for producing a color filter of the present invention comprises the following steps: an inorganic active layer is formed on a transparent substrate, a first color is dyed on said inorganic active layer, a resist is formed on portions of the inorganic active layer other than portions where a second color is dyed, a decoloring treatment is conducted, the second color is dyed on the exposed inorganic active layer, the resist is removed, a resist is formed on portions of the inorganic active layer other than portions where a third color is dyed, a decoloring treatment is conducted, the third color is dyed on the exposed inorganic active layer, and then the resist is removed.
Inventors
- 👤 Tenri Isoda
- 👤 Masahiro Nishida
- 👤 Takao Hashimoto
- 👤 Kanji Suyama
- 👤 Kenji Kishi
- 👤 Yoshihide Inako
- 👤 Yosuke Matsukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:00
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G03; G03F; G03F7/00; G03F7/0005; G03F7/0007
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
176 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; and (j) a step of removing said resist.
Claim 2
Independent Claim
176 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; and (j) a step of removing said resist.
Claim 3
Independent Claim
235 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (l) a step of forming the black mask on gaps among the portions, which have been dyed in the first to third colors, by chemical plating; and (m) a step of removing said resist.
Claim 4
Independent Claim
235 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (l) a step of forming the black mask on gaps among the portions, which have been dyed in the first to third colors, by chemical plating; and (m) a step of removing said resist.
Claim 5
Independent Claim
234 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (l) a step of dyeing between the portions, which have been dyed in the first to third colors, in black to form the black mask; and (m) a step of removing said resist.
Claim 6
Independent Claim
234 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of dyeing said exposed portions of said inorganic active layer in the second color; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (l) a step of dyeing between the portions, which have been dyed in the first to third colors, in black to form the black mask; and (m) a step of removing said resist.
Claim 7
Independent Claim
241 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of forming the black mask by chemical plating or dyeing in black; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (l) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (m) a step of dyeing said exposed portions of said inorganic active layer in the third color; and (n) a step of removing said resist.
Claim 8
Independent Claim
241 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of forming the black mask by chemical plating or dyeing in black; (f) a step of removing said resist; (g) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (h) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (i) a step of dyeing said exposed portions of said inorganic active layer in the third color; (j) a step of removing said resist; (k) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (l) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (m) a step of dyeing said exposed portions of said inorganic active layer in the third color; and (n) a step of removing said resist.
Claim 9
Independent Claim
257 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of absorbing a catalyst solution into the inorganic active layer; (f) a step of removing said resist; (g) a step of activating said catalyst solution; (h) a step of forming a black mask by plating metal; (i) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (j) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (k) a step of dyeing said exposed portions of said inorganic active layer in the second color; (l) a step of removing said resist; (m) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (n) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (o) a step of dyeing said exposed portions of said inorganic active layer in a third color; and (p) a step of removing said resist.
Claim 10
Independent Claim
257 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a resist on portions of said inorganic active layer other than portions on which a black mask is to be formed; (d) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (e) a step of absorbing a catalyst solution into the inorganic active layer; (f) a step of removing said resist; (g) a step of activating said catalyst solution; (h) a step of forming a black mask by plating metal; (i) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a second color; (j) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (k) a step of dyeing said exposed portions of said inorganic active layer in the second color; (l) a step of removing said resist; (m) a step of forming a resist on portions of said inorganic active layer other than portions which are to be dyed in a third color; (n) a step of conducting a decoloring treatment to decolor exposed portions of said inorganic active layer; (o) a step of dyeing said exposed portions of said inorganic active layer in a third color; and (p) a step of removing said resist.
Claim 11
Independent Claim
241 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (d) a step of forming the black mask by chemical plating; (e) a step of removing the photoresist; (f) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (g) a step of dyeing the decolored portions of said inorganic active layer in the second color; (h) a step of removing the photoresist; (i) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions other than the portions on which said photoresist has been formed; (j) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (k) a step of removing the photoresist.
Claim 12
Independent Claim
241 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (d) a step of forming the black mask by chemical plating; (e) a step of removing the photoresist; (f) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (g) a step of dyeing the decolored portions of said inorganic active layer in the second color; (h) a step of removing the photoresist; (i) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions other than the portions on which said photoresist has been formed; (j) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (k) a step of removing the photoresist.
Claim 13
Independent Claim
267 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (d) a step of absorbing a catalyst solution into the inorganic active layer; (e) a step of removing the photoresist; (f) a step of activating said catalyst solution; (g) a step of forming said black mask by plating metal; (h) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (i) a step of dyeing the decolored portions of said inorganic active layer in the second color; (j) a step of removing the photoresist; (k) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (l) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (m) a step of removing the photoresist.
Claim 14
Independent Claim
267 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (d) a step of absorbing a catalyst solution into the inorganic active layer; (e) a step of removing the photoresist; (f) a step of activating said catalyst solution; (g) a step of forming said black mask by plating metal; (h) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (i) a step of dyeing the decolored portions of said inorganic active layer in the second color; (j) a step of removing the photoresist; (k) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (l) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (m) a step of removing the photoresist.
Claim 15
Independent Claim
246 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions other than the portions on which said photoresist has been formed; (d) a step of forming said black mask by dyeing the inorganic active layer in black; (e) a step of removing the photoresist; (f) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (g) a step of dyeing the decolored portions of said inorganic active layer in the second color; (h) a step of removing the photoresist; (i) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (j) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (k) a step of removing the photoresist.
Claim 16
Independent Claim
246 words
A method of producing a color filter, which comprises the following steps conducted in turn: (a) a step of forming an inorganic active layer on a transparent substrate; (b) a step of dyeing said inorganic active layer in a first color; (c) a step of forming a photoresist on portions of said inorganic active layer other than portions on which a black mask is to be formed and simultaneously decoloring portions other than the portions on which said photoresist has been formed; (d) a step of forming said black mask by dyeing the inorganic active layer in black; (e) a step of removing the photoresist; (f) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a second color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (g) a step of dyeing the decolored portions of said inorganic active layer in the second color; (h) a step of removing the photoresist; (i) a step of forming a photoresist on portions of said inorganic active layer other than portions which are to be dyed in a third color and simultaneously decoloring portions of said inorganic active layer other than the portions on which said photoresist has been formed; (j) a step of dyeing the decolored portions of said inorganic active layer in the third color; and (k) a step of removing the photoresist.
Claim 17
Independent Claim
150 words
The method according to any one of claims 1 to 8, wherein said inorganic active layer is obtained by applying a sol, which is obtained by electrolyzing an aqueous solution of a compound expressed by the following general formula (I) and degelatinizing the electrolyzed solution, to said transparent substrate and baking the applied sol, M(OR.sub.1).sub.m (OR.sub.2).sub.n X.sub.p Y.sub.q (I) wherein M is at least one element selected form the group consisting of magnesium, calcium, zirconium, titanium, hafnium, germanium, yttrium, aluminum, gallium, tin and silicon; R 1 and R 2 , which are the same or different, show a hydrogen atom, an alkyl group or an acyl group, respectively; X and Y, which are the same or different, show a hydrogen atom, a chlorine atom or a hydroxyl group, respectively; m, n, p and q are an integer of 0 to 8, respectively, so as to meet m+n+p+q=a valence of M.
References Cited (Backward Citations)
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