Patent EP0882999A1 successfully refreshed from Google Patents.
EP0882999A1
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Color filter and its manufacturing method
Assignee: Seiko Epson Corp
•
Filing: 1997-10-28
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Granted: —
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Expires: 2017-10-28
Abstract
Abstract The object is to make a color filter smoothly. It includes a step of causing a discharge in a gas atmosphere including oxygen at atmospheric pressure and treating a substrate (10) by means of the activated species; and a step of injecting ink of predetermined color in ink filling concavities (29) in a predetermined layout formed on a template (13) to form a color pattern layer (14), next adhering the substrate (10) to the template (13) having the color pattern layer (14) formed thereon with a resin layer (15) interposed therebetween, and then separating the color pattern layer (14), resin layer (15), and substrate (10) as one from the template (13).
Inventors
- 👤 Takao Seiko Epson Corporation NISHIKAWA
- 👤 Hiroshi Seiko Epson Corporation KIGUCHI
- 👤 Atsushi Seiko Epson Corporation TAKAKUWA
- 👤 Masaru Seiko Epson Corporation KOJIMA
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 22:37
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/22; G02B5/223; G02B5/201; B; B41; B41J; B41J2202/00; B41J2202/01; B41J2202/09
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
112 words
A method of making a color filter comprising: a step of causing a discharge in an atmosphere of
gas including at least oxygen at atmospheric pressure or a
pressure close thereto, and treating a substrate with
activated species created by the discharge; and a step of forming color pattern layers by injecting
ink of at least one predetermined color in a plurality of ink
filling concavities formed in a predetermined layout on a
template, then adhering the substrate to the template having
the color pattern layers formed thereon with a resin layer
interposed therebetween, and then separating the color pattern
layers, the resin layer, and the substrate as one from the
template.
Claim 2
Dependent Claim
19 words
The method of making a color filter of claim 1,
wherein the ink is injected using an inkjet method.
Claim 3
Dependent Claim
80 words
The method of making a color filter of claim 1 or 2,
wherein in the step of treating the substrate, a discharge
generating electrode is disposed in close vicinity to the
substrate, a high frequency voltage is applied to the
discharge generating electrode, the discharge is created in a
space between the substrate and the discharge generating
electrode, and the gas including at least the oxygen passes
through the space creating the activated species, and whereby
the substrate is treated.
Claim 4
Dependent Claim
29 words
The method of making a color filter of claim 3,
wherein the discharge generating electrode has an area equal
to or bigger than a treatment area of the substrate.
Claim 5
Dependent Claim
100 words
The method of making a color filter of claim 1 or 2,
wherein in the step of treating the substrate, a discharge
generating electrode and a counterelectrode are disposed, a
high frequency voltage is applied between the discharge
generating electrode and the counterelectrode, the discharge
is created in a space between the discharge generating
electrode and the counterelectrode, the gas including at least
the oxygen passes through the space creating the activated
species, the substrate is disposed to avoid the discharge, and
a gas flow including the activated species is expelled from a
gas outlet, whereby the substrate is treated.
Claim 6
Dependent Claim
28 words
The method of making a color filter of claim 5,
wherein the gas outlet has an area equal to or bigger than a
treatment area of the substrate.
Claim 7
Dependent Claim
19 words
The method of making a color filter of claim 1 or 2,
wherein the substrate is treated while heated.
Claim 8
Dependent Claim
19 words
The method of making a color filter of claim 1 or 2,
wherein the substrate is treated while cooled.
Claim 9
Independent Claim
114 words
A method of making a color filter comprising: a first step of forming an ink filling layer having
a plurality of ink filling concavities in a predetermined
layout on a first template; a second step of forming color pattern layers by
injecting ink of at least one predetermined color in each of
the ink filling concavities; a third step of forming a resin layer having optical
transmissivity by painting resin over the ink filling layer
where the color pattern layers are formed; and a fourth step of separating the resin layer together
with the color pattern layers and the ink filling layer as one
from the first template, after the resin layer is set.
Claim 10
Dependent Claim
23 words
The method of making a color filter of claim 9,
wherein in the second step, the ink is injected using an
inkjet method.
Claim 11
Dependent Claim
32 words
The method of making a color filter of claim 9,
wherein the second step includes a step of heat-treating the
ink injected in the ink filling concavities, volatilizing a
solvent ingredient therein.
Claim 12
Dependent Claim
46 words
The method of making a color filter of claim 9,
wherein in the first step, the ink filling layer is formed
after applying a release agent in at least a region of a
surface of the first template on which the ink filling layer
is formed.
Claim 13
Dependent Claim
21 words
The method of making a color filter of claim 9,
wherein a release agent is added to the ink filling layer.
Claim 14
Dependent Claim
44 words
The method of making a color filter of claim 9,
wherein a releasing layer of low adhesion to the ink filling
layer is formed in at least a region of a surface of the first
template on which the ink filling layer is formed.
Claim 15
Dependent Claim
29 words
The method of making a color filter of claim 9,
wherein the third step includes a step of mounting on the
resin layer a reinforcing plate having optical transmissivity.
Claim 16
Dependent Claim
28 words
The method of making a color filter of claim 9,
wherein in the first step, the ink filling concavities are
formed in the ink filling layer by etching.
Claim 17
Independent Claim
119 words
The method of making a color filter of any one of
claims 9 to 16, wherein in the first step, a substance of liquid for forming the ink filling
layer which can be set by applying energy is provided on a
second template having a relief pattern consisting of convex
portions corresponding to the ink filling concavities and
concave portions formed around the convex portions; the first template is put into the substance; the substance after set is separated together with
the first template as one from the second template; and the relief pattern of the second template is
transferred to the substance, whereby the ink filling layer
having the ink filling concavities is formed on the first
template.
Claim 18
Dependent Claim
22 words
The method of making a color filter of claim 17,
wherein the relief pattern of the second template is formed by
etching.
Claim 19
Dependent Claim
20 words
The method of making a color filter of claim 18,
wherein the second template is formed from a silicon wafer.
Claim 20
Dependent Claim
78 words
The method of making a color filter of claim 17,
wherein the second template is formed by: etching a resist layer formed on a third template to
form a resist pattern in the resist layer corresponding to the
relief pattern of the second template; making a surface of the resist pattern electrically
conductive and electrodepositing metal by an electroplating
method to form a metal layer; and removing the metal layer from the third template and
removing the resist.
Claim 21
Dependent Claim
45 words
The method of making a color filter of claim 17,
wherein the substance of liquid is provided on the second
template, after a release agent is applied in at least a
region of a surface of the second template which the ink
filling layer touches.
Claim 22
Dependent Claim
39 words
The method of making a color filter of claim 17,
wherein the second template has a releasing layer of low
adhesion to the substance of liquid in at least a region on
its surface which ink filling layer touches.
Claim 23
Dependent Claim
54 words
The method of making a color filter of claim 17,
wherein in the first step, the substance of liquid is provided
on the second template, after an opaque ink is injected in the
concave portions of the second template; and an opaque layer
is formed from the opaque ink around the ink filling
concavities.
Claim 24
Dependent Claim
20 words
The method of making a color filter of claim 23,
wherein the opaque ink is injected using an inkjet method.
Claim 25
Dependent Claim
33 words
The method of making a color filter of claim 23,
further comprising a step of heat-treating the opaque ink
injected in the concave portions of the second template,
volatilizing a solvent ingredient therein.
Claim 26
Dependent Claim
20 words
The method of making a color filter of claim 23,
wherein a release agent is added to the opaque ink.
Claim 27
Dependent Claim
35 words
The method of making a color filter of claim 23,
wherein each of the concave portions of the relief pattern of
the second template is smaller at its bottom area than at its
opening portion.
Claim 28
Independent Claim
82 words
The method of making a color filter of any one of
claims 9 to 16, wherein: a concave portion for forming a spacer is formed in
the first template; in the first step, the ink filling layer is formed
by providing on the first template a substance of liquid for
forming the ink filling layer and setting the substance; and a convex portion for the spacer is formed in the ink
filling layer corresponding to the concave portion for forming
the spacer.
Claim 29
Dependent Claim
56 words
A color filter comprising: an ink filling layer of optical transmissivity
having ink filling concavities; a color pattern layer formed by injecting ink of at
least one predetermined color in each of the ink filling
concavities; and a resin layer of optical transmissivity applied over
the ink filling layer where the color pattern layer is formed.
Claim 30
Dependent Claim
18 words
The color filter of claim 29, further comprising a
reinforcing plate having optical transmissivity on the resin
layer.
Claim 31
Dependent Claim
21 words
The color filter of claim 29 or 30, wherein an opaque
layer is formed around each of the ink filling concavities.
Claim 32
Dependent Claim
45 words
The color filter of claim 31, wherein each of the ink
filling concavities is formed so as to widen from its bottom
area toward its opening portion; and the opaque layer, around
the opening, is formed with its top portion smaller than its
base portion.
Claim 33
Dependent Claim
18 words
The color filter of claim 29 or 30, wherein the ink
filling layer has an integrally formed spacer.
References Cited (Backward Citations)
No citation records indexed.
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