JP2000121823A - Color filter and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide color filters to be efficiently produced at a good yield by transferring a color filter layer formed on a transfer sheet onto a transparent substrate and a process for producing the same. SOLUTION: The color filter layer of the transfer sheet composed of a transfer base material, a release layer, the color filter layer 3, a light shielding layer 7, etc., is a dye resin layer, a resin 1 containing dyestuffs, a printing ink layer containing the dyestuffs, an electrodeposition coat layer contg. dyestuffs or an ink layer containing dyestuffs. The peeling strength of the release layer from the color filter layer, the light shielding layer and an adhesive layer 5 is <=15 g and the peeling strength of the adhesive layer from the color filter layer, the light shielding layer and the transparent substrate is >=20 g.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter used in a liquid crystal display device and a method of manufacturing the same, and more particularly, to a color filter in which a color filter layer formed by various methods is formed on a transparent substrate by a transfer method. The present invention relates to a filter and a method for manufacturing the filter.

[0002]

2. Description of the Related Art Conventionally, in order to color a liquid crystal display device, for example, three primary colors of red (R), green (G) and blue (B) are arranged in a stripe or matrix on a glass substrate. Color filters have been used. The method of manufacturing this color filter is, for example, in a dyeing method, a dyeable resin film or the like is dyed with a dye having a predetermined spectral characteristic to obtain a color filter. (G) and blue (B) were repeatedly formed. However, such a color filter by dyeing is a process in which a patterning process of a dyeable resin film and a dyeing process are separate processes, and since an anti-staining process is also required after dyeing, the process becomes complicated and difficult to automate. There were drawbacks.

On the other hand, in recent years, a non-photosensitive resin serving as a filter layer has been mixed and dispersed with a dye such as a pigment, or the resin itself has photosensitivity, so that a color filter forming process is performed. Simplifications have been made. This method is a method in which a dye is mixed and dispersed, for example, a photosensitive resin is uniformly applied to a transparent substrate such as glass, and is subjected to pattern exposure with an exposure device. A difference is made in solubility, and then a color filter having a desired pattern is formed by selective dissolution by development. According to this method, the process is simpler than the method by dyeing, and there is an advantage that a color filter can be created on an automated production line. However, this method is still the same as repeatedly forming a predetermined number of colors such as red (R), green (G), and blue (B) on a glass substrate, and the process is complicated.

In the printing method, a color filter is manufactured on a transparent substrate by using techniques such as offset printing and screen printing. In the electrodeposition method, a transparent conductor layer is provided on a transparent substrate, a desired pattern is formed by using a photolithography technique, and a high-molecular resin containing a dye is dispersed while energizing only the pattern to be colored. To form a colored pattern by electrodeposition in the electrodeposited paint. Also,
The ink jet method is an image forming method that has been used in printers, and forms a color filter layer by discharging ink from nozzles.

However, any of the above methods is not always satisfactory as a method of manufacturing a color filter, and the thermal expansion coefficient of the glass substrate used for the color filter is almost the same as that of the glass substrate used in the color filter in order to escape from the complicated steps described above. There has been proposed a method of manufacturing a color filter in which a manufacturing process is simplified by using a transfer sheet using a metal thin plate having a transfer base material.

According to this method, the surface of the obtained color filter is highly smooth, and the step of repeatedly forming a predetermined number of colors such as red (R), green (G), and blue (B) includes: It is performed separately on the transfer substrate, not on the glass substrate. Therefore, a complicated color filter manufacturing process can be performed in a separate process from the glass substrate color filter manufacturing line, which is preferable in terms of production efficiency.

As described above, by using the transfer method, a complicated color filter layer can be manufactured in a separate step from the manufacture of a color filter layer on a transparent substrate such as a glass substrate, and the production efficiency can be reduced. Although it can be improved, there is a problem to be solved also in the transfer method. That is, this is a peeling failure at the time of peeling the transfer substrate, which is a defect in the production of the color filter by the transfer method. The peeling failure means that the color filter layer or the light-shielding layer to be transferred to the transparent substrate side remains on the transfer sheet, the adhesive layer peels off from the transparent substrate and transfers to the transfer sheet side, and the release layer has This is a defect that is peeled off from the transfer substrate and transferred to the transparent substrate side.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to provide a color filter for efficiently manufacturing a color filter layer formed on a transfer sheet by transferring the color filter layer onto a transparent substrate. In addition, the present invention is a color filter that is efficiently manufactured by transferring a color filter layer formed on a transfer sheet onto a transparent substrate. Peeling failure, that is, a color filter layer or a light-shielding layer to be transferred to the transparent substrate side remains on the transfer sheet, an adhesive layer peels off from the transparent substrate and transfers to the transfer sheet side,
Another object of the present invention is to provide a color filter which can be manufactured with a good yield without causing a defect or the like in which a release layer is peeled off from a transfer substrate and transferred to a transparent substrate side.

Another object of the present invention is to provide a method for efficiently producing a color filter by transferring a color filter layer formed on a transfer sheet onto a transparent substrate. Further, the present invention provides a method of manufacturing a color filter by transferring a color filter layer formed on a transfer sheet onto a transparent substrate, as a defect in the manufacture of the color filter by the transfer method, when removing the transfer substrate. Poor peeling,
That is, the color filter layer or the light-shielding layer to be transferred to the transparent substrate side remains on the transfer sheet, the adhesive layer peels off from the transparent substrate and transfers to the transfer sheet side, and the release layer transfers the transfer substrate side. An object of the present invention is to provide a method of manufacturing a color filter which can be manufactured with high yield without causing a defect or the like which is further peeled and transferred to a transparent substrate side.

[0010]

According to the present invention, a transfer sheet comprising a transfer substrate, a release layer, a color filter layer, a light-shielding layer, and the like is bonded to a transparent substrate via an adhesive layer. After the layer is cured, the transfer substrate is peeled off, and the color filter layer and the light-shielding layer are transferred to the transparent substrate to produce a color filter. In the color filter, the color filter layer is a resin layer dyed with a dye. A colorant, a resin layer containing a pigment, a printing ink layer containing a pigment, an electrodeposition paint layer containing a pigment, or an ink layer containing a pigment.

The present invention also provides the color filter according to the present invention, wherein the release layer has a peel strength of 15 g or less from the color filter layer, the light shielding layer, and the adhesive layer. A color filter, wherein the peel strength between the layer, the light-shielding layer, and the transparent substrate is 20 g or more. Further, the present invention is the color filter according to the above invention, wherein the transparent substrate is a glass substrate, a switching element forming substrate, or a plastic substrate.

The present invention also relates to a transfer sheet comprising a transfer base material, a release layer, a color filter layer, a light-shielding layer, etc., is bonded to a transparent substrate via an adhesive layer, and after the adhesive layer is cured, The method for manufacturing a color filter, in which the transfer base material is peeled off and the color filter layer and the light-shielding layer are transferred to the transparent substrate to manufacture a color filter, the color filter layer includes a dyeing method, a pigment dispersion method, A color filter manufacturing method characterized by being formed by a printing method, an electrodeposition method, or an inkjet method.

Further, according to the present invention, in the method for producing a color filter according to the present invention, a release layer having a peel strength of 15 g or less from the color filter layer, the light-shielding layer, and the adhesive layer is used as the release layer. A method for producing a color filter, wherein a color filter layer, a light-shielding layer, and an adhesive layer having a peel strength of 20 g or more from a transparent substrate are used as the adhesive layer. Further, the present invention is the color filter manufacturing method according to the above invention, wherein a glass substrate, a switching element forming substrate, or a plastic substrate is used as the transparent substrate.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a color filter and a manufacturing method according to the present invention will be described in detail based on one embodiment.

FIG. 1 is a sectional view showing an embodiment of a color filter according to the present invention. In FIG. 1, the color filter (1) includes a transparent substrate (6), an adhesive layer (5) on the transparent substrate, a light-shielding layer (7), a color filter layer (3), and the like. And the color filter layer (3)
As shown in FIG. 1, for example, it has three primary colors of red (R), green (G), and blue (B).

FIGS. 2A to 2D are explanatory views showing the steps of manufacturing the color filter according to the present invention in cross section.
FIGS. 2A to 2D show a color filter (1).
Is shown in an enlarged manner. Fig. 2 (a)
A transfer sheet (4) is shown in which a release layer (2), a color filter layer (3), a light-shielding layer (7) and the like have already been formed on a transfer substrate (8). FIG. 2B shows a state in which an adhesive layer (5) is formed on a transparent substrate (6).

First, as shown in FIG. 2C, the transfer sheet (4) and the transparent substrate (6) on which the adhesive layer (5) has been formed are adhered to each other and pressed from above and below to bring them into close contact. Next, for example, when the adhesive is a photocurable adhesive, light irradiation (not shown) is performed to cure the adhesive layer (5). Subsequently, the transfer substrate (8) and the release layer (2) were peeled off, and FIG.
As shown in (d), a color filter (1) is obtained.

The transparent substrate (6) used in the present invention comprises:
Those having sufficient strength, flatness, heat resistance, light transmittance and the like are preferable. For example, a transparent alkali-free glass usually used as a color filter substrate and having a small coefficient of thermal expansion is preferable. And its thickness is about 0.6 to 1.1 mm.

In the present invention, a transfer sheet (4) is bonded to a transparent substrate (6) on which an adhesive layer (5) is formed, and a color filter layer (3), a light shielding layer (7) and the like are transferred. However, in the method for manufacturing a color filter according to the present invention, the transfer sheet (4) is attached to a transparent substrate on which, for example, a wiring for driving an element or a liquid crystal or a pixel electrode is formed as a substrate of a display device. In addition, a color filter can be manufactured by transferring the color filter layer (3), the light shielding layer (7), and the like.

As described above, according to the method of attaching the transfer sheet (4) to the glass substrate on which the wirings and the pixel electrodes are formed, and transferring the color filter layer (3), the light shielding layer (7) and the like, A color filter (not shown) in which wirings and pixel electrodes are located between the layer and the glass substrate is obtained.

For example, in a TFT-driven liquid crystal display device, when a color filter layer (3), a light shielding layer (7) and the like are transferred onto a glass substrate on which TFTs and pixel electrodes are formed, TFTs and pixel electrodes are formed. On the glass substrate
This is a liquid crystal display device having a function of a color filter in the liquid crystal display device.

The transfer substrate (8) used in the present invention comprises:
A metal sheet or metal foil having a thickness of 0.15 mm or less, preferably 0.06 to 0.09 mm, and a metal having a thermal expansion coefficient substantially equal to that of the glass substrate is preferable. For example, in the case of a glass substrate having a thermal expansion coefficient of about 40 × 10 ⁻⁷ / ° C., as the thin metal sheet of the transfer base material to be used, 42 alloy (42% by weight of nickel, balance iron) and amber (nickel of 36%) are used.
(% By weight, trace amount of manganese, balance iron)
Those having about 0 to 40 × 10 ⁻⁷ / ° C. are preferred. Iron-nickel alloys are also suitable in that they hardly rust in air and have good storage stability.

The release layer (2) is a polymer film resistant to an organic solvent, which imparts smoothness to the surface of the transfer substrate, and maintains the close contact between the transparent substrate and the transfer substrate during transfer. It gives elasticity. Therefore, the thickness of the layer is 10
A thickness of about 100 μm is preferable, and it is preferable that the layer has flexibility. On the other hand, in view of the inherent characteristics of the release layer, it is desirable that the surface is inert and has high hardness.

Specifically, water-soluble resins resistant to organic solvents include casein, polyvinyl alcohol, hydroxyethylcellulose, and the like, and resins giving elasticity include polyurethane resins and various rubber-based resins. It is not limited to resin. Also,
In order to improve the releasability, a silicone-based or fluorine-based surfactant may be added, and the original function is exhibited only when the transfer substrate is integrated with the release layer.

The color filter layer (3) is formed by a dyeing method, a pigment dispersion method, a printing method, an electrodeposition method, an ink-jet method, or the like. The dyeing method is a dyeable resin, for example, gelatin, glue, casein, etc., added dichromate to give photosensitivity, after pattern formation by exposure and development,
Dyeing and anti-dyeing with an anionic dye. Also,
The color filter layer can also be formed using a photosensitive synthetic resin having photosensitivity having a cationic group such as an amide group or an amino group. That is, the formed color filter layer is a resin layer dyed with a dye.

In the pigment dispersion method, a color filter layer is formed by a photolithography method using a non-photosensitive or photosensitive resin in which a desired pigment or the like is dispersed in advance. That is, the formed color filter layer is a resin layer containing a dye. In the printing method, a color filter layer is formed by using a lithographic offset method or an intaglio offset method. Then, the formed color filter layer is a printing ink layer containing a dye.

In the electrodeposition method, a transparent conductor layer is provided on a transparent substrate, a desired pattern is formed by using a photolithography technique, and only a pattern to be colored is energized while a high density containing a pigment is applied. This is to form a colored pattern by electrodeposition in an electrodeposition coating material in which a molecular resin is dispersed. That is, the formed color filter layer is an electrodeposition paint layer containing a dye. In addition, in the ink jet method, a color filter layer is formed by discharging ink from a nozzle, and the formed color filter layer is an ink layer containing a dye.

As described above, by using the transfer method, a complicated color filter layer can be produced in a separate step from the production of a color filter layer on a transparent substrate such as a glass substrate, and the production efficiency can be reduced. Although it can be improved, there is a problem to be solved also in the transfer method. That is, this is a peeling failure at the time of peeling the transfer substrate, which is a defect in the production of the color filter by the transfer method. The peeling failure means that the color filter layer or the light-shielding layer to be transferred to the transparent substrate side remains on the transfer sheet, the adhesive layer peels off from the transparent substrate and transfers to the transfer sheet side, and the release layer has This is a defect that is peeled off from the transfer substrate and transferred to the transparent substrate side.

FIG. 2C is an explanatory view showing a cross section of a color filter manufacturing process by the transfer method. Fig. 2 (c)
Is a transfer sheet (4) in which a color filter layer (3), a light shielding layer (7), etc. are provided on a release layer (2), and a transparent substrate (6) attached via an adhesive layer (5). This shows a combined state. In FIG. 2 (c), the peeling failure is caused by the interface 1 (51): the transparent substrate and the adhesive layer, and the interface 2 (52):
Adhesive layer, color filter layer and light-shielding layer, interface 3 (5
3): adhesive layer and release layer, interface 4 (54): difference in adhesion between release layer and color filter layer and light-shielding layer, interface 5 (55): interface between release layer and transfer base material It occurs due to.

That is, the interface 1 (51) and the interface 2 (5
2), the adhesion at each interface of interface 5 (55) is
3) If the adhesion is sufficiently large compared to the interface 4 (54), peeling failure is unlikely to occur. Conversely, if the adhesion is not sufficiently large, peeling is likely to occur. .

In the present invention, the relationship of the adhesion at the interface is made appropriate so as to prevent the occurrence of peeling failure. That is, a release layer having a peel strength of 15 g or less at the interface 3 (53) and the interface 4 (54) is used as the release layer, and the interface 1 is used as the adhesive layer.
(51) and the peel strength at interface 2 (52) is 20.
By using an adhesive layer of g or more, stable transferability is obtained. In addition, interface 1 (51) and interface 2
When the difference between the peel strength at (52) and the peel strength at interface 3 (53) and interface 4 (54) is 20 g or more, more stable transferability can be obtained. Also,
The peel strength of the interface 5 (55) is sufficiently higher than the other interfaces 1 to 4.

More specifically, polyvinyl alcohol (degree of saponification: 99, manufactured by Union Chemical Co., Ltd.), Hitaloid 3001
"Hitachi Chemical Co., Ltd.", polyamide-imide resin (KS600
0) A peel strength of 15 g or less can be obtained by using "Hitachi Chemical" as a release layer.
By using V3300 and UV3610 “manufactured by Toa Gosei Chemical Industry Co., Ltd.” as the adhesive layer, a peel strength of 20 g or more was obtained, and defective peeling could be prevented.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. <Example 1> (Preparation of release layer) The coating liquid for the release layer was polyvinyl alcohol "PV500N" having a saponification degree of 99 and a polymerization degree of 500.
0.9 g of ammonium bichromate was added to 100 g of a 15% aqueous solution (manufactured by Union Chemical Industry Co., Ltd.) to prepare a coating solution. A coating liquid for a release layer was formed to a thickness of about 20 μm on a 42 alloy (nickel 42% by weight, balance iron) plate having a thickness of about 0.11 mm by a reverse coater, and dried at 90 ° C. for 30 minutes. Thereafter, the substrate was irradiated with UV light at 1000 mJ / cm ² and light-cured. This light-cured film is placed in a 4% aqueous solution of chromic anhydride for 9 hours.
It was immersed for 0 second and dried by heating at 150 ° C. for 10 minutes to obtain a release layer.

(Preparation of Transfer Sheet) A red acrylic pigment-dispersed photosensitive material was applied by a reverse coater on the transfer substrate (42 alloy plate) on which the release layer was formed. After pattern exposure and development by UV exposure, drying was performed at 110 ° C. for 5 minutes to obtain a red color filter layer. Similarly, green, blue and black were subjected to pattern exposure, development and drying at predetermined positions to form a color filter layer and a light shielding layer. Thus, a transfer sheet having the color filter layer and the light-shielding layer formed on the transfer substrate was obtained.

The composition of the acrylic pigment-dispersed photosensitive material used is based on the following formulation. A: 10 parts by weight of pigment The pigment is indicated by a color index (CI) number. Red: C.I. I. Red pigment 177 and C.I. I. Yellow pigment 1
39 green: C.I. I. Green pigment 36 and C.I. I. Yellow pigment 13
9 Blue: C.I. I. Blue pigment 15 Black: C.I. I. Black pigment 7B; anionic acrylic copolymer 10 having the following composition
Parts by weight Methyl methacrylate 2 parts by weight methacrylic acid 1 part by weight hydroxy methacrylate 2 parts by weight butyl methacrylate 2 parts by weight cyclohexyl acrylate 3 parts by weight C; polyfunctional acrylic monomer 10 parts by weight ARONIX M-300 (manufactured by Toagosei Chemical Industry Co., Ltd.) D: Photopolymerization initiator 0.5 parts by weight Irgaguer 907 E; Organic solvent 120 parts by weight

(Preparation of Photocurable Adhesive Layer) The photocurable adhesive was 3 parts by weight of butyl methacrylate,
-305 (manufactured by Toagosei Chemical Industry Co., Ltd.) 2 parts by weight, Aronix M-400 (manufactured by Toagosei Chemical Industry Co., Ltd.) 5 parts by weight, photopolymerization initiator Irgaguer 907 (manufactured by Ciba Geigy) 0.2 parts by weight Was prepared by mixing. The above photocurable adhesive was applied to a glass substrate (1737, manufactured by Corning Incorporated, USA) using a roll coater to a thickness of about 3 μm to provide a photocurable adhesive layer on the glass substrate.

(Preparation of Color Filter) The transfer sheet on which the color filter layer and the light-shielding layer are formed is bonded to a predetermined position on the glass substrate provided with the photocurable adhesive layer, and the transfer sheet is irradiated with spot UV light. A part of the photocurable adhesive layer was cured and a transfer sheet was temporarily attached.

The glass substrate to which the transfer sheet was temporarily attached was sandwiched between two plastic films and pressed by a pair of upper and lower rolls. Next, UV light was irradiated at 100 mJ / cm ² to cure the photocurable adhesive layer. Subsequently, an alkaline solution was blown between the glass substrate and the transfer sheet by high-pressure spray to peel off the transfer substrate, thereby obtaining a color filter. The obtained color filter was good without any peeling failure at the interfaces 1 to 5.

(Measurement of Peeling Strength) The transfer sheet and the transparent substrate on which the adhesive layer is formed are adhered to each other, pressed from above and below and brought into close contact with each other, and irradiated with light to cure the adhesive layer before peeling. The strength was measured. The test method is JIS-
K6854 "was used. The peel strength at interfaces 3 and 4 was 8 g, and the interfaces 1 and 2
Was 40 g.

<Comparative Example 1> (Preparation of Release Layer) The coating liquid for the release layer was Hitaloid 300.
0 alloy and a 42 alloy (nickel 4
(2% by weight, balance iron) plate was coated with a spin coater. It was formed to a thickness of about 20 μm and dried at 150 ° C. for 30 minutes to obtain a release layer.

(Preparation of a transfer sheet), (Preparation of a photocurable adhesive layer), (Preparation of a color filter), and (Measurement of peel strength) were performed in the same manner as in Example 1. The peel strength at interfaces 3 and 4 was 15 g, and the peel strength at interfaces 1 and 2 was 20 g. The obtained color filter had many peeling failures.

[0042]

According to the present invention, a transfer sheet composed of a transfer base material, a release layer, a color filter layer, a light-shielding layer, and the like is bonded to a transparent substrate via an adhesive layer, and the adhesive layer is cured. The transfer base material is peeled off, and the color filter layer and the light shielding layer are transferred to the transparent substrate to produce a color filter. In the color filter, the color filter layer contains a resin layer dyed with a dye and a dye. Resin layer, dye-containing printing ink layer, dye-containing electrodeposition paint layer, or dye-containing ink layer, the color filter layer formed on the transfer sheet is transferred to a transparent substrate. It becomes a color filter that can be efficiently manufactured.

Further, according to the present invention, the peel strength of the release layer from the color filter layer, the light shielding layer and the adhesive layer is 15 g.
Hereinafter, of the adhesive layer, a color filter layer, a light shielding layer,
And the peel strength between the transparent substrate and the transparent substrate is 20 g or more, so that the peeling failure at the time of peeling the transfer base material as a defect in the production of the color filter by the transfer method, that is, the color filter layer to be transferred to the transparent substrate side and light shielding Failure to leave the layer on the transfer sheet, failure to transfer the adhesive layer from the transparent substrate to the transfer sheet, and failure to release the release layer from the transfer substrate and transfer to the transparent substrate Without doing so, a color filter can be produced with good yield.

Further, according to the present invention, a transfer sheet composed of a transfer substrate, a release layer, a color filter layer, a light-shielding layer and the like is bonded to a transparent substrate via an adhesive layer, and after the adhesive layer is cured, The method for manufacturing a color filter, in which the transfer base material is peeled off and the color filter layer and the light-shielding layer are transferred to the transparent substrate to manufacture a color filter, the color filter layer includes a dyeing method, a pigment dispersion method, Since the printing method, the electrodeposition method, or the ink-jet method is used, the color filter layer formed on the transfer sheet is transferred to a transparent substrate,
This is a method for efficiently manufacturing a color filter.

Further, according to the present invention, the release layer has a peel strength of 1 from a color filter layer, a light shielding layer, and an adhesive layer.
Using a release layer of 5 g or less, the adhesive layer has a peel strength of 20 from the color filter layer, the light shielding layer, and the transparent substrate.
g or more of the adhesive layer, the peeling failure at the time of peeling the transfer substrate as a defect in the production of the color filter by the transfer method, that is, the color filter layer or the light shielding layer to be transferred to the transparent substrate side is a transfer sheet. And the adhesive layer is peeled off from the transparent substrate and transferred to the transfer sheet side, and the release layer is peeled off from the transfer base material and transferred to the transparent substrate side. This is a well-manufactured color filter manufacturing method.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a color filter according to the present invention.

FIGS. 2A to 2D are explanatory views showing a process of manufacturing a color filter according to the present invention in cross section.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Color filter 2 ... Release layer 3 ... Color filter layer 4 ... Transfer sheet 5 ... Adhesive layer 6 ... Transparent substrate 7 ... Light shielding layer 8 ... Transfer base material 51 ... Interface 1 52 ... Interface 2 53 ... Interface 3 54 ... Interface 4 55 ... Interface 5 R ... Red color filter layer G ... Green color filter layer B ... Blue color filter layer

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H048 BA45 BA64 BB02 BB12 BB42 2H091 FA02Y FB02 FB12 FB13 FC01 FC05 FC06 FC12 GA01 LA02 LA12

Claims (6)

[Claims] 1. A transfer sheet comprising a transfer substrate, a release layer, a color filter layer, a light-shielding layer, etc., is adhered to a transparent substrate via an adhesive layer, and after the adhesive layer is cured, the transfer substrate is cured. In a color filter for producing a color filter by transferring the color filter layer and the light-shielding layer and the like to the transparent substrate, the color filter layer is a resin layer dyed with a dye, a resin layer containing a dye, A color filter, which is a printing ink layer containing a dye, an electrodeposition paint layer containing a dye, or an ink layer containing a dye. 2. The peel strength of the release layer from the color filter layer, the light shielding layer, and the adhesive layer is 15 g or less, and the peeling of the adhesive layer from the color filter layer, the light shield layer, and the transparent substrate. The color filter according to claim 1, wherein the strength is 20 g or more. 3. The color filter according to claim 1, wherein the transparent substrate is a glass substrate, a switching element forming substrate, or a plastic substrate. 4. A transfer sheet comprising a transfer base material, a release layer, a color filter layer, a light shielding layer, etc., is bonded to a transparent substrate via an adhesive layer, and after the adhesive layer is cured, the transfer base material is cured. The color filter layer and the light-shielding layer are transferred to the transparent substrate to produce a color filter. In the method for producing a color filter, the color filter layer is dyed, pigment-dispersed, printed, A method for producing a color filter, wherein the color filter is formed by a deposition method or an inkjet method. 5. A color filter layer, a light-shielding layer, and a release layer having a peel strength of 15 g or less from an adhesive layer as the release layer, and a color filter layer, a light-shield layer, and The method for producing a color filter according to claim 4, wherein an adhesive layer having a peel strength of 20 g or more from the transparent substrate is used. 6. The method for manufacturing a color filter according to claim 4, wherein a glass substrate, a switching element forming substrate, or a plastic substrate is used as said transparent substrate.