JPH07318712A - Color filter and sheet fitted with color filter - Google Patents

Abstract

PURPOSE:To obtain a lightweight flexible color filter which can be easily attached to a color liquid crystal display device or the like for use by connecting color layers of a color filter layer with a transparent resin part to constitute a film. CONSTITUTION:This color filter 10 is a film comprising a color filter layer 2 and a transparent resin part 3. The color filter layer 2 consists of color layers 1R, 1G, 1B of red (R), green (G) and blue (B), respectively, which are two- dimensionally arranged with different color layers 1R, 1G, 1B adjacent to each other. The transparent resin part 3 connects these color layers 1R, 1G, 1B. A light-shielding frame 4 is formed in the border region of color layers 1R, 1G, 1B. A resin film 7 is laminated on one surface of the color filter. The resin film 7 prevents damages in the color filter layer 2 and the transparent resin part 3 due to scratching or the like and makes the color filter 12 itself as independent.

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 color liquid crystal display device or the like and a color filter mounting sheet for mounting the color filter on a mounted body, and more particularly to a transparent electrode substrate of the liquid crystal display device. The present invention relates to a lightweight and flexible color filter that can be easily attached to a color filter and a color filter attachment sheet that is convenient for attachment.

[0002]

2. Description of the Related Art A color liquid crystal display device has many advantages not found in a light emitting display device, such as thinness, low power consumption, and light weight. It is widely used as a display device for various devices such as a portable computer such as a book-type computer, and in recent years, there has been a strong demand for an increase in size thereof. This color liquid crystal display device,
A color filter for expressing full color is used. In this color filter, a transparent colored layer colored in at least one of red (R), green (G), and blue (B) is usually formed on a transparent substrate made of glass, as shown in FIG. Different colors are arranged next to each other as a dot-shaped pixel pattern as shown in FIG. 9B or as a striped pattern as shown in FIG. 9C.
In many cases, each of the boundaries is formed by being partitioned by a black light-shielding frame 31 so that colors adjacent to each other are not mixed. The light-shielding frame 31 is usually called a black matrix and is formed of a chromium metal thin film or the like.

[0003]

In order to manufacture this color filter, generally, a color filter layer is directly formed on a glass substrate by using a method such as photolithography, printing and electrodeposition. However, all of these methods require the operation of forming the light-shielding frame 31 and the formation of the colored layer pattern that is repeated for the number of colors of the color filter layer on one glass substrate. In addition to requiring time and time, precise alignment is required for each individual forming operation, and even slight misalignment and pixel loss are defective, so the probability of misalignment and pixel loss is particularly high. The production of large products has a very poor yield. In addition, since large-sized products are glass, the substrates are heavy and easily bent, and the damage rate is high, so the equipment of the transportation system becomes large-scale and complicated, and since the transportation speed cannot be increased, the productivity is low and the cost is low. Bulky.

In recent years, in order to increase the aperture ratio of a liquid crystal display device, a color filter (C) is directly formed on a substrate on which a switching control thin film transistor circuit (TFT) is formed.
A so-called TFT-CF type liquid crystal display device for forming F) has been studied. However, both the TFT and the color filter have low production yields, and if both of them are formed on the same substrate, the probability that both of them will be obtained as good products is extremely low. Furthermore, when a color filter is formed on the TFT, the TFT may be subject to severe processing conditions for forming the color filter.
This method has not been put to practical use because it may be damaged. Therefore, there is a strong demand for a technique capable of forming a good color filter on a TFT substrate and the like without any trouble. The present invention has been made to solve the above problems, and an object thereof is to provide a lightweight and flexible color filter that can be easily mounted and used without damaging the mounted body, It is to provide a color filter mounting sheet that is convenient to mount and transport.

[0005]

Means for Solving the Problems The above-mentioned problems are related to a color filter in which a color filter layer in which colored layers of a plurality of colors are arranged in a plane and a transparent resin portion connecting the colored layers form a film. It can be solved by providing. It is preferable that a light-shielding frame is provided at the boundary between the colored layers of the color filter. A resin film may be laminated on either surface of the color filter. Also, on either side of this color filter,
An adhesive layer may be formed. The present invention also provides a color filter mounting sheet in which a color filter is laminated on a support substrate via a release layer. This supporting substrate is preferably made of any one or more selected from the group of nickel-iron alloys, aluminum, glass, and heat-resistant synthetic resin.

[0006]

Since the color filter is in the form of a film, it has a thin film thickness, is lightweight, and is flexible, and can be easily attached by simply attaching it to an attached object such as a TFT substrate. The resin film laminated on one surface of the color filter protects the color filter layer from external force, or imparts self-supporting property to the film color filter. The support substrate of the color filter mounting sheet supports the flexible film color filter to facilitate storage, transportation and mounting.

The present invention will be described in detail below with reference to the drawings. FIG. 1 shows a preferred embodiment of the color filter of the present invention. In FIG. 1, this color filter 1
0 is a different color from the transparent colored layers 1R, 1G, and 1B (hereinafter generally referred to as "colored layer 1") colored with any one of red (R), green (G), and blue (B). Color filter layer 2 in which the colored layers 1 of the two are arranged in a plane so as to be adjacent to each other.
The transparent resin portion 3 connecting the colored layers 1 forms a film, and a light shielding frame 4 is provided at the boundary between the colored layers 1.

Since the color filter 10 is lightweight and flexible, it is convenient for transportation and is not damaged during transportation. The color filter 10 can be easily attached by adhering it to, for example, a glass substrate or a plastic substrate, and also when manufacturing the above-mentioned TFT-CF integrated type liquid crystal display device, it is a non-defective TFT substrate. The color filter can be selected and mounted, and the TFT is not damaged by this mounting condition, so that the yield is significantly improved.

The color filter 10 can be manufactured, for example, by the method shown in FIG. First, the release layer 6 is formed on the support substrate 5. The light-shielding frame 4 is formed on the peeling layer 6, and then the colored layers 1 are formed on the windows of the light-shielding frame 4 to form the color filter layer 2. A transparent resin is applied on the color filter layer 2 to form the transparent resin portion 3. Then, the color filter 10 is obtained by peeling at the interface between the peeling layer 6 and the color filter layer 2.

In the process of manufacturing the color filter 10 described above,
The layered product in which the color filter 10 is laminated on the supporting substrate 5 via the release layer 6 can be transported to the mounting site of the color filter as the color filter mounting sheet 11 as it is, during which the supporting substrate 5 is This is convenient because it protects the color filter 10. Therefore, the present invention includes the color filter mounting sheet 11 in which the color filter 10 is laminated on the support substrate 5 via the release layer 6.

According to the present invention, as shown in FIG. 3, the resin film 7 is formed on either surface of the color filter 10.
To provide a color filter 12 in which layers are stacked. The resin film 7 prevents the color filter layer and the transparent resin portion from being scratched by scratches and makes the color filter 12 itself self-supporting. Therefore, in some cases, the resin film 7 can be used as a lightweight color filter having a transparent substrate instead of the heavy and fragile glass substrate. It goes without saying that the present invention also includes a color filter mounting sheet in which the color filter 12 having the resin film 7 is laminated on the support substrate 5 via the release layer 6.

The present invention also provides a color filter 13 having an adhesive layer 8 formed on one surface of the color filter 10, as shown in FIG. The adhesive layer 8 enables the film-shaped color filter to be attached and attached to any attached body having no adhesive layer. The color filter mounting sheet in which the surface of the adhesive layer 8 is laminated on the support substrate 5 via the peeling layer 6 can be rolled or stacked and stored / transported, and the adhesive layer 8 and the peeling layer 6 can be mounted at the time of mounting. It is convenient to use because it can be peeled off at the interface with and attached to the body to be attached.

The material of the supporting substrate 5 used in the color filter mounting sheet 11 of the present invention is not particularly limited as long as it has sufficiently high flatness and mechanical strength. However,
When the color filter is formed on this, it is preferable that the color filter has high corrosion resistance and high dimensional stability against temperature fluctuations so as to withstand chemicals and heating during molding of the color filter. From this viewpoint, the support substrate 5 is preferably a sheet made of any one or more selected from the group consisting of nickel-iron alloys, aluminum, glass, and heat-resistant synthetic resin. Nickel-iron alloys and heat-resistant synthetic resins are particularly suitable materials because they have high mechanical strength, are stable against chemicals under various color filter manufacturing conditions, and have good dimensional stability against temperature fluctuations. is there. The thickness of the support substrate 5 is 50 μm to 500 μm.
It is preferably in the range of μm.

The nickel-iron alloy used as the supporting substrate 5 is an alloy containing nickel and iron as essential components, and may also contain cobalt, manganese, carbon, etc., and has excellent corrosion resistance. , The linear expansion coefficient is low,
It is about the same as that of low expansion glass (coefficient of linear expansion: 30 to 60 × 10 ⁻⁷ ) used as a glass substrate for a color filter. Therefore, the color filter mounting sheet using this as the supporting substrate 5 may cause a positional deviation of the mounted color filter with respect to the mounted body even if the sheet is heated to cure the adhesive layer during mounting. Absent.

As an example of this nickel-iron alloy, 42
Alloy (42 wt% Ni, balance Fe, coefficient of linear expansion: 37 to
40 × 10 ^-7 ), Fernico or Kovar (both are trade names, Ni 30% by weight, Co 13% by weight, balance Fe,
Linear expansion coefficient: 36-38 × 10 ^-7 ), amber (Ni3
6 wt%, Mn 0.7 wt%, C <0.20 wt%, balance Fe, linear expansion coefficient: 10 to 20 × 10 ⁻⁷ ) and the like.

The heat-resistant synthetic resin that can be used as the supporting substrate 5 is resistant to chemicals that come into contact with it in the process of forming the color filter layer 2 and can withstand repeated heating up to about 150 ° C. Is preferred. Examples of the heat resistant synthetic resin include polyester, polyimide, polyparabanic acid, polyethylene naphthalate, and polyether sulfone. A laminate film of these or these and other synthetic resin or metal foil can also be used.

The release layer 6 formed on the support substrate 5 is
The material is not particularly limited as long as it strongly adheres to the support substrate 5 and has weak adhesion to the color filter layer 2, but in the case of forming a color filter on this,
It is preferable that the uncured material forming each colored layer 1 has a surface property capable of being applied. From this perspective,
If the colored layer 1 is made of an oily material such as polyacrylate resin, the release layer 6 is made of a water-soluble resin composition,
A photocurable water-soluble resin composition is particularly preferable.

The photocurable water-soluble resin composition is a water-soluble resin to which a photocuring agent is added, and can be applied to the supporting substrate 5 before curing, and preferably is irradiated with ultraviolet rays while being heated. It is cured and firmly adhered to it to form a film. The release layer 6 formed from the photocurable water-soluble resin composition can be coated with the oil-based resin composition for the colored layer 1 evenly after curing, and after the colored layer is cured. The adhesive strength of is weak. Therefore, the color filter layer 2 formed on this is transferred to the mounted body side without a defect.

Examples of the water-soluble resin used here include polyvinyl alcohol, gelatin, glue, casein, cellulose acetate and the like. Examples of the photo-curing agent include dichromate, chromate, diazo compound and the like. The photocurable water-soluble resin composition applied on the supporting substrate 5 is obtained, for example, by adding 10 parts by weight of a photocuring agent and 900 parts by weight of water to 90% by weight of the above water-soluble resin. The product is applied using a roll coater, a knife coater, a spin coater, or the like.

The uncured release layer is cured by irradiation with ultraviolet rays. At this time, it is preferable to use heating in combination to complete the curing. This heating is performed, for example, at 120 ° C. to 170 ° C. for 30 minutes to 2 hours. Alternatively, a method in which the uncured release layer is entirely exposed to light and then brought into contact with an aqueous solution of chromic anhydride, and then subjected to heat treatment at 100 ° C. for 10 minutes is also a preferable method because the surface of the release layer 2 is further hardened. is there. The thickness of the release layer 6 is 1μ
m to 10 μm, the surface smoothness is 0.1 μm
It is preferably about the following.

The light-shielding frame 4 of the color filter can be formed on the cured release layer 6. This shading frame 4
Can be formed in various ways. For example, a thin film such as metallic chromium or a double layer of metallic chromium and chromium oxide is formed on the surface of the peeling layer 6 by sputtering or the like, and a resist pattern for a light-shielding frame is formed on the thin film by photolithography, and a resist pattern is formed after etching. Can be formed by a method of removing. Further, for example, a resist in which a black pigment is dispersed is coated on the entire surface of the release layer 6,
It can also be formed by a method in which the pattern of the light-shielding frame is exposed and then developed to dissolve and remove the window portion of the light-shielding frame. It can also be formed by a method in which a dyeable resist is applied in the same manner in place of the above-mentioned resist in which the black pigment is dispersed, and is dyed with a black dye after exposure and development. Further, it can be formed by printing with black ink, for example.

As a method of molding the color filter layer 2,
Any conventionally known method such as photolithography, printing, electrodeposition, or electrophotography can be used. Photolithography includes a pigment dispersion method and a dyeing method, but either method may be used.

In the pigment dispersion method, first, a resist (R resist) in which, for example, a red (R) pigment is dispersed is applied on the release layer 6, and after prebaking, an R pattern is exposed, developed and postbaked. The colored layer 1R is formed. Next, for example, a green (G) resist is applied thereon, and a G pattern is exposed after prebaking, developed and postbaked to form a colored layer 1G. Further, similarly, a blue colored layer 1B is formed.

In the case of the dyeing method, for example, an R pattern layer is formed by using a resist containing no pigment, and is dyed red in an R dyeing bath to form a colored layer 1R. Next, the colored layer 1R is subjected to a dye-proof treatment, and thereafter, the colored layers 1G and 1B are sequentially formed in the same manner.

In the case of printing, screen printing, letterpress printing, planographic printing, intaglio printing, etc. can all be adopted, as in the case of ordinary multicolor printing. Fine printing is possible,
Intaglio printing is preferable from the viewpoint that the thickness of the colored layer 1 to be printed can be adjusted.

In the case of the electrodeposition method, first, the electrodes corresponding to the patterns of the colored layers 1R, 1G and 1B are formed on the surface of the electrically insulating support substrate 5. The above-mentioned peeling layer 6 is formed on this. Then, this is immersed in, for example, an R electrodeposition bath containing an R dye, and only the R electrode is energized to electrodeposit the R dye on the R electrode. This operation is repeated for the G electrodeposition bath and the B electrodeposition bath to form the respective colored layers. In the case of the electrodeposition method, it is not suitable for a dot type pattern because it is necessary to switch the respective electrodes of R, G and B, and it is mainly used for a stripe type color filter.

The arrangement pattern of the colored layers 1 of the color filter layer 2 is a so-called square arrangement of the colored layers 1 as shown in FIG. 5A if the colored layers are dot-shaped. A mosaic arrangement or a so-called triangle arrangement in which one set of colored layer groups 1R, 1G, and 1B is arranged in a triangle as shown in FIG. In addition, a coloring layer having a stripe shape as shown in FIG. 5C and arranged in parallel is often used as a stripe arrangement. The selection of these array patterns is made in response to the demands of the color liquid crystal display device to be manufactured. In the color filter layer 2, it is preferable that the respective colored layers 1R, 1G and 1B constituting the color filter layer 2 are arranged apart from each other. That is, the gap 9 is formed between the adjacent colored layers. Then, the colored layers 1 and the light shielding frame 4 are aligned so that the gap 9 is completely shielded by the light shielding frame 4.

On the color filter layer 2, a transparent resin portion 3 connecting the colored layers 1 is formed. This transparent resin part 3
Basically, it suffices that the gaps 9 of each colored layer 1 are uniformly filled and adhere to the colored layer 1 at their interfaces. However, since the strength as a film is insufficient in that case, actually, as shown in FIG. 1, the gap portion 9 of each colored layer 1 is filled and the surface of each colored layer 1 is formed so as to be covered with a constant thickness. To be done. The thickness covering the surface of the colored layer 1 is 1.0 μm.
m to 20 μm is suitable. This transparent resin part 3
Can be formed of, for example, an acrylate resin, an epoxy resin, a polyimide resin, a novolac resin, an epoxy-modified novolac resin, or the like. In particular, it is preferable to use an uncolored resin of the same kind as that used for forming the color filter layer 2. The transparent resin portion 3 can be formed by applying this resin on the color filter layer 2 by a method such as spin coating, roll coating, or bar coating.

The resin film 7 which can be laminated on either surface of the color filter 10 can be appropriately selected in consideration of strength, thermal characteristics, transparency, laminating method and the like.
It is preferably a heat resistant film. Examples thereof include films made of any one of polyester, polyimide, polyparabanic acid, polyethylene naphthalate, polyether sulfone and the like. The resin film 7 is preferably laminated on the surface of the transparent resin portion 3 of the color filter 10 that forms the skin. For lamination, for example, T-die extrusion lamination, dry lamination,
A method such as wet lamination is used. The thickness of the resin film 7 is preferably in the range of 2 μm to 100 μm. If it is less than this range, a sufficient protective effect cannot be obtained, and if it exceeds this range, flexibility and transparency deteriorate.

If the adhesive layer 8 applied to the color filter 10 or 12 is transparent and has a sufficient adhesive force to the color filter and the body to be attached, the pressure-sensitive layer usually used in this field is used. Any of an adhesive, a heat-sensitive adhesive, and a photo-curable adhesive can be used. In particular, an ultraviolet curable adhesive is suitable because it does not require high temperature heating and can be cured by irradiating ultraviolet rays from the back side of the transparent substrate. Examples of this adhesive include an acrylate resin,
Epoxy resin, ethylene-vinyl acetate resin, polyolefin resin, ethylene-carboxylic anhydride resin,
Although various compositions such as rubber-based resin can be mentioned,
UV curable resin (acrylate resin) similar to the resin composition used for forming the colored layer 1 but containing no dye
It is particularly preferable to use a composition or the like.

The adhesive layer 8 is applied to the surface of the color filter on which the resin film 7 is not preferably laminated. The thickness of the adhesive layer 8 is preferably in the range of 1 μm to 50 μm. It is applied using a spin coater, a roll coater or the like so that the film thickness is uniform. A color filter having an adhesive layer 8, for example, a color filter 13
It is preferable that the surface of the adhesive layer 8 is covered with a releasable support sheet so as to be convenient for transportation and storage. When it is attached to the body to be attached, the support sheet may be peeled off and attached.

The color filter of the present invention can be used in various forms as a color filter for a photoelectric device. For example, if this is attached to a transparent glass substrate, a color filter similar to a color filter directly formed on a normal glass substrate can be obtained, and thus this hard color filter can be used in combination with another CCD circuit board or the like. it can. Further, for example, as shown in FIG. 6, for example, one of the surfaces of the color filter 10 is attached to the glass substrate 20, and the opposite common electrode 21 of the liquid crystal display device is formed on the other surface of each of the color filters. A liquid crystal display device can be manufactured by aligning the colored layer 1 so as to face the pixel electrode 24 of each thin film transistor formed on the glass substrate 23 via the liquid crystal layer 22.

As another utilization mode, for example, as shown in FIG. 7, for example, if the counter common electrode 21 is formed on the other surface of the color filter 12 having the resin film 7 laminated on one surface shown in FIG. The glass substrate for the color filter can be discarded, and at least one surface of the resin film 7
It is possible to manufacture a lightweight liquid crystal display device including

For example, as shown in FIG. 8, the adhesive layer 8 is formed on the pixel electrode 24 of the thin film transistor circuit formed on one surface of the glass substrate 23, for example, on the one surface shown in FIG. If the colored filter 13 thus prepared is attached after the colored layers 1 and the pixel electrodes 24 are aligned with each other, a color TFT substrate for a so-called TFT-CF integrated liquid crystal display device can be obtained. According to this method, TF
Since a good product of T and a good product of the color filter may be attached to each other, it is possible to prevent a decrease in yield due to the integral type.

[0035]

EXAMPLES The present invention will be described in more detail by way of examples. (Example 1) The color filter mounting sheet 11 shown in Fig. 2 was manufactured by the following procedure. First step: In a dust-free chamber, a 0.15 mm-thick 42 alloy sheet (42% by weight Ni, the balance Fe) was cut into 460 mm × 500 mm, and on this supporting substrate 5, polyvinyl alcohol 90 parts by weight ammonium dichromate 9 By weight, a mixture composed of 900 parts by weight of water was applied to a thickness of 10 μm by a spin coater, heated at 100 ° C. for 10 minutes, and then irradiated with ultraviolet rays to be hardened to form a peeling layer 6.

Second step: A resist in which a black pigment is dispersed is applied onto the release layer 6 by a spin coater, and 70
After prebaking for 20 minutes at ℃, expose the light-shielding frame pattern,
After development, it was post-baked at 150 ° C. for 30 minutes to form a light-shielding frame 4.

Third step: The peeling layer 6 and the light-shielding frame 4 are removed in a rectangular shape along two opposite sides of this sheet, and the removed support substrate 5 is aligned with each colored layer 1. An alignment mark was formed. For the alignment mark, apply R resist to the part where the peeling layer is removed.
After prebaking at 0 ° C. for 20 minutes, a cross-shaped alignment mark pattern corresponding to the R, G, and B colored layer patterns was exposed, and after development, postbaking was performed at 150 ° C. for 30 minutes to form.

Fourth step: A pattern (R pattern) of the colored layer 1R was formed on the peeling layer 6 and the light shielding frame 4. This pattern has R alignment marks protected by Kapton tape, spin coater is used to apply R resist to the sheet surface, prebaked at 70 ° C. for 20 minutes, and then the Kapton tape is peeled off to expose the alignment marks. In addition, the R pattern was exposed, and after development, it was post-baked at 150 ° C. for 30 minutes to be formed.

Fifth and sixth steps: Further, patterns of colored layers 1G (fifth step) and 1B (sixth step), respectively, G pattern and B pattern were formed. The G pattern was formed by protecting the G alignment mark with a Kapton tape, applying G resist on the surface of the sheet on which the R pattern was formed, and treating in the same manner as in the case of the R resist. Then, the B pattern was formed in the same manner as the G pattern. Each colored layer 1 of the obtained color filter layer 2 is provided with a light-shielding frame 4 on the peeling layer 6.
In each of the windows of the colored layers 1R, 1G, 1B, one side 20
Pixels of 0 μm squares were formed apart from each other by 20 μm, and the respective colored layers were arranged in a triangle array as shown in FIG. 5B so that the colored layers of different colors were adjacent to each other. The thickness of each colored layer 1R, 1G, 1B is 1.
It was 0 μm to 1.5 μm.

Seventh step: An acrylate resin-based transparent resist is applied onto the color filter layer 2 by spin coating, and the entire surface is exposed, followed by post-baking at 150 ° C. for 30 minutes to cure the transparent resin portion 3. . The thickness of the transparent resin portion 3 covering the surface of the colored layer 1 was 10 μm. The transparent resin portion 3, each colored layer 1 of the color filter layer, and the light-shielding frame 4 were strongly adhered to each other to form an integral film, and the color filter mounting sheet 11 of Example 1 was obtained.

When the supporting substrate 5 was peeled off from the color filter mounting sheet 11, the peeling layer 6 was removed together with the supporting substrate 5, and the color filter 10 was obtained. The color filter 10 could be easily mounted on the glass substrate and the plastic substrate having the adhesive layer.

Example 2 A polyethylene terephthalate resin having a thickness of 50 μm was laminated by T-die extrusion lamination on the surface of the transparent resin portion 3 of the color filter mounting sheet 11 obtained in the seventh step of Example 1. Example 2
To obtain a color filter mounting sheet. When the supporting substrate 5 was peeled off from the color filter mounting sheet of Example 2, the peeling layer 6 was removed together with the supporting substrate 5, and the resin film 7 was laminated on the surface of the transparent resin portion 3 in FIG.
was gotten. The color filter 12 could be easily attached to the glass substrate and the plastic substrate having the adhesive layer.

(Example 3) The color filter 12 was peeled off from the color filter mounting sheet of Example 2, and the same surface as the color filter layer 2 was formed on the surface on which the light-shielding frame 4 was formed, but a pigment was included. The non-existing resist was spin-coated uniformly to a thickness of about 1 μm. This was prebaked at 70 ° C. for 20 minutes to form the adhesive layer 8 shown in FIG. 4, and the color filter 13 of Example 3 was obtained. This color filter 1
The adhesive layer 8 side of 3 was superposed on the glass substrate, and while keeping this state, it was set on the hot plate of the roll press,
Preheat to 100 ° C for 5 minutes, then temperature 100 ° C pressure 5k
After roll-pressing at g / cm ² , the glass substrate side was irradiated with ultraviolet rays to cure the adhesive layer 8. A color filter in which the light shielding frame 4 and the protective layer 7 were formed on the glass substrate was obtained.

[0044]

EFFECTS OF THE INVENTION The color filter of the present invention is lightweight and flexible because each colored layer of the color filter layer is connected by the transparent resin portion to form a film, which is convenient for storage and transportation and continuous. Not only is it highly adaptable to production, but it can also be attached to a transparent substrate such as a glass substrate or a plastic substrate to easily manufacture a hard color filter. If the resin film is laminated on one surface of the color filter, the glass substrate for the color filter can be omitted due to the self-supporting property of the resin film, and a lightweight liquid crystal display device can be obtained. Further, since only a good product of the color filter can be attached to the attachment target, for example, the TF in which the thin film transistor circuit and the color filter layer are both formed on one glass substrate.
When manufacturing a T-CF integrated liquid crystal display device,
Since it suffices to simply adhere the good product of the color filter to the good product of the substrate, the decrease in the yield due to the integrated type is prevented, and the production efficiency is significantly improved.

[Brief description of drawings]

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

FIG. 2 is a sectional view showing an embodiment of the color filter mounting sheet of the present invention.

FIG. 3 is a sectional view showing another embodiment of the color filter of the invention.

FIG. 4 is a sectional view showing still another embodiment of the color filter of the present invention.

5A to 5C are plan views each showing an arrangement pattern of colored layers in a color filter.

FIG. 6 is a sectional view showing an application example of the color filter of the present invention.

FIG. 7 is a sectional view showing another application example of the color filter of the invention.

FIG. 8 is a sectional view showing still another application example of the color filter of the invention.

9A to 9C are plan views each showing an arrangement pattern of colored layers in a general color filter.

[Explanation of symbols]

 1R, 1G, 1B ... Colored layer, 2 ... Color filter layer, 3 ... Transparent resin part, 4 ... Light-shielding frame, 5 ... Support substrate, 6 ... Release layer, 7 ... Resin film, 8 ... Adhesive layer, 10, 12 , 13 ... Color filter, 11 ... Color filter mounting sheet.

Claims (6)

[Claims] 1. A color filter in which a color filter layer in which colored layers of a plurality of colors are arranged in a plane and a transparent resin portion connecting the colored layers form a film. 2. The color filter according to claim 1, wherein a light-shielding frame is provided at a boundary portion of each colored layer so that adjacent colors are not mixed. 3. A color filter in which a resin film is laminated on either surface of the color filter according to claim 1 or 2. 4. A color filter in which an adhesive layer is formed on one surface of any one of the color filters according to claim 1. Description: 5. A color filter mounting sheet in which the color filter according to any one of claims 1 to 4 is laminated on a support substrate via a release layer. 6. The color filter mounting sheet according to claim 5, wherein the supporting substrate is made of any one or more selected from the group consisting of nickel-iron alloys, aluminum, glass, and heat resistant synthetic resins.