KR102354027B1 - Method for manufacturing flexible color filter - Google Patents

Abstract

The present invention relates to a method for manufacturing a flexible color filter, and more particularly, to a method for manufacturing a flexible color filter in which a separation layer formed for separation from a glass substrate is performed by limiting the peeling force to a glass substrate within a certain range. will be.
The flexible color filter obtained by the above manufacturing method not only solves problems caused by thermal deformation of conventional plastic substrates, but also enables high resolution of patterns that are not realized in plastic substrates, and has the advantage of being diversified without restrictions on the material of the base film. can be obtained

Description

Manufacturing method of flexible color filter {METHOD FOR MANUFACTURING FLEXIBLE COLOR FILTER}

The present invention relates to a method of manufacturing a flexible color filter capable of realizing excellent flexibility and high-quality image quality.

With the generalization of the Internet and the explosive increase in the amount of information communicated, an environment of 'ubiquitous display' will be created in the future where information can be accessed anytime, anywhere. And the role of portable displays such as PDA has become important. In order to implement such a ubiquitous display environment, the portability of the display is required so that information can be directly accessed at a desired time and place, and at the same time, a large screen characteristic for displaying various kinds of multimedia information is also required. Therefore, in order to satisfy these portability and large screen characteristics at the same time, there is a need to develop a display in a form that can be used as a display by giving flexibility to the display, and can be folded and stored when carrying.

Representative types of flat panel displays that are currently widely used are a liquid-crystal display (LCD) and an organic light-emitting diode (OLED).

Compared to conventional LCD, OLED can realize a very light and thin screen, has a wide color reproduction range, fast response speed, and has a high contrast ratio (CR). It is currently being actively developed as a display.

In particular, a white organic light-emitting diode (WOLED) that uses a white light source instead of a conventional blue light source has high efficiency, high resolution, and long lifespan, and is not only implemented as a large-area high-definition display, but also has various applications as general lighting. Due to the possibility, research is being conducted in earnest by domestic and foreign researchers.

In WOLED, color filters are used to realize full color. In this case, the color filter used is one in which a black matrix formed on a glass substrate is formed, and red, green, blue, and white patterns are formed thereon.

However, since the glass substrate used in the color filter has a large weight and is easily damaged by a small external impact, there are limitations in portability and large-screen display characteristics. Accordingly, a plastic substrate having a light weight and strong impact resistance as well as a flexible characteristic is used.

Flexible display is a next-generation display that can be bent, bent, or rolled freely. Because it can be applied, research and development are continuously in progress. Accordingly, the substrates of various components constituting the flexible display are being replaced by plastic substrates made of polymer materials from glass substrates.

By using a flexible plastic substrate instead of a conventional glass substrate, it can have many advantages in terms of portability and safety compared to the conventional glass substrate. In addition, in terms of process, since the plastic substrate can be manufactured by deposition or printing, the manufacturing cost can be lowered, and unlike the conventional sheet unit process, the roll-to-roll process Since a display device can be manufactured by using this method, a low-cost display device can be manufactured through mass production.

However, since the plastic substrate has a lower transition temperature than glass and a high expansion rate according to temperature change, there is a problem in that the layers laminated thereon may be destroyed or deformed. In particular, since the substrate itself is flexible, there is a problem in that the processes applied to the existing glass substrate cannot be equally applied.

Accordingly, Korean Patent Laid-Open No. 2010-0047029 mentions an electron beam low temperature curing method capable of curing at a temperature of 100° C. or less in manufacturing a color filter for an electronic display.

In addition, Korean Patent Laid-Open No. 2004-0097228 discloses a method in which a separation layer, a thin film device, an adhesive layer, and a temporary substrate are sequentially formed on a glass substrate, and then the separation layer is irradiated with light such as a laser to separate the glass substrate and the transfer target layer. A method is disclosed.

These patents seek to improve thermal instability that occurs when a plastic substrate is used, but the effect is also insufficient because the low-temperature curing method has limitations on applicable plastic materials or requires separation using additional equipment.

Korean Patent Publication No. 2010-0047029 Korean Patent Publication No. 2004-0097228

Accordingly, as a result of various studies related to the manufacturing method of a flexible color filter that can secure the excellent color quality of the color filter as well as the excellent flexibility of the plastic substrate, the present applicant formed the release layer and the protective layer on the glass substrate and then The present invention was completed by confirming that the above problems could be solved through a manufacturing process of manufacturing a filter and then removing the glass substrate and adhering the base film.

Accordingly, it is an object of the present invention to provide a method of manufacturing a flexible color filter that can obtain a high-definition pattern that is difficult to implement on a conventional plastic substrate, solves thermal instability, and can apply a base film of various materials.

In order to achieve the above object, the present invention

forming a separation layer by coating a composition for forming a separation layer on a glass substrate;

coating a composition for forming a protective layer on the separation layer to form a protective layer to cover the separation layer side;

forming a black matrix (BM) layer on the passivation layer, and forming red, green, blue, and white pixel layers therebetween;

forming a planarization layer by coating a composition for forming a planarization layer over the entire pixel layer;

bonding a protective film coated on one side of the pressure-sensitive adhesive layer with the planarization layer;

separating the glass substrate and the separation layer;

adhering the base film coated on one side of the adhesive layer with the separation layer; and

Manufacturing including; removing the protective film;

The separation layer provides a method of manufacturing a flexible color filter, characterized in that the peeling force to the glass substrate is 1 N/25 mm or less.

In this case, the separation layer is characterized in that the peeling force to the glass substrate is 0.1 N/25 mm or less.

In addition, the thickness of the separation layer is characterized in that the range of 1 to 1000 nm.

The method of manufacturing a flexible color filter according to the present invention can obtain a high-definition pattern that is difficult to implement on a conventional plastic substrate, solve thermal instability, and can apply a base film of various materials.

Accordingly, the flexible color filter is easy to apply to a curved body such as a column, and has excellent color reproduction characteristics compared to the conventional color filter due to its high definition, so that vivid image quality can be realized.

1 to 10 are cross-sectional views at each stage according to a method of manufacturing a flexible color filter according to an embodiment of the present invention.

The present invention provides a method for manufacturing a flexible color filter capable of producing a high-definition pattern, having excellent heat resistance, and having no limitation on the material of a plastic substrate.

A color filter is a key component for expressing color, and the existing color filter process includes a high-temperature process and various cleaning processes using a glass substrate. However, since plastic substrates have weak rigidity and low thermal deformation temperature, thermal deformation such as bending, distortion, expansion and contraction of plastic substrates occurs during a process involving high-temperature heat treatment. For this reason, when the process is performed directly on the plastic substrate, heat treatment conditions are limited and it is difficult to control the finally obtained fine pattern.

Therefore, in the present invention, in the manufacturing process of the flexible color filter, a high-temperature process color filter is manufactured on a glass substrate, and a high-quality color filter is manufactured through the separation process of the separation layer from the glass substrate, and for separation from the glass substrate The above problem is solved by controlling the peeling force of the formed separation layer to the glass substrate in a certain range.

Hereinafter, the present invention will be described in more detail with reference to the drawings. However, the drawings attached to the present specification are only examples for explaining the present invention, and the present invention is not limited by the drawings. In addition, for convenience of description, some components may be exaggerated, reduced, or omitted in the drawings.

1 to 10 are cross-sectional views at each stage according to a method of manufacturing a flexible color filter according to an embodiment of the present invention.

1 to 10, the flexible color filter according to the present invention is

forming a separation layer 105 by coating the glass substrate 115 with a composition for forming a separation layer;

coating a composition for forming a protective layer on the separation layer 105 to form a protective layer 107 to cover up to the side of the separation layer;

A black matrix (BM) layer 113 is formed on the protective layer 107 , and red, green, blue, and white pixel layers 109 are formed therebetween. ) to form;

forming a planarization layer 111 by coating a composition for forming a planarization layer over the entire pixel layer 109;

bonding the protective film 119 coated on one side of the pressure-sensitive adhesive layer 117 with the planarization layer 111;

separating the glass substrate 115 and the separation layer 105;

Adhering the base film applied to one side of the adhesive layer 103 to the separation layer 105; and

It is manufactured through the step of removing the protective film 119 and the pressure-sensitive adhesive layer 117.

At this time, the separation layer 105 is a layer for peeling from the glass substrate in the second half of the manufacturing process of the flexible color filter of the present invention, and the peeling force to the glass substrate 115 is 1 N/25 mm or less, preferably 0.1 N By adjusting to /25 mm or less, only the glass substrate 115 can be easily removed without damage such as lifting or dropping of the surface. Therefore, the control of the peeling properties of the separation layer of the present invention is significantly more economical and stable than the prior art of chemically removing the target substrate using a laser, an etchant, etc., as well as more effective physical peeling.

Hereinafter, each step will be described in more detail with reference to the drawings.

First, after preparing the glass substrate 115, the separation layer 105 is formed by coating the composition for forming the separation layer (see FIG. 1).

The glass substrate 115 is the surface on which the layers constituting the color filter are formed and provides appropriate strength so that it can be fixed without being easily bent or twisted during the color filter manufacturing process. In addition, glass is suitable as a material that is not affected by heat or chemical treatment.

The thickness of the glass substrate 115 is not limited to a specific range, but, for example, a thickness of 50 to 500 μm may be used. If the thickness of the glass substrate 115 is less than the above range, a decrease in mechanical strength and performance may occur. Conversely, if the thickness exceeds the above range, a problem may occur in process equipment due to weight during the process.

The composition for forming the separation layer is coated and cured to form the separation layer 105 .

In particular, the separation layer 105 is a layer formed for separation from the glass substrate on which the color filter is formed in the manufacturing process of the flexible color filter of the present invention. The separation layer 105 must be able to be separated from the glass substrate for manufacturing the color filter through physical force, and after separation, it must be bonded to the base film 101 through the above-described adhesive layer 103 .

Accordingly, the separation layer 105 may have a peeling force with respect to the glass substrate of 1 N/25 mm or less, preferably, 0.1 N/25 mm or less. As it falls within the above range, the glass substrate 115 is then easily removed and the surface is not lifted or a part does not come off, so it does not affect their physical properties.

In addition, the thickness of the separation layer 105 may be in the range of 1 to 1000 nm, preferably 1 to 100 nm. If it is less than the above range, a problem may occur in the peeling process, and if it exceeds the above range, workability and quality of the process after peeling may be deteriorated.

In addition, the separation layer 105 preferably has a surface energy of 30 to 70 mN/m after peeling. The surface energy is a factor related to the contact angle, and when the surface energy after peeling is within the above range, it has low wettability, and the adhesive layer composition to be formed thereafter has excellent coatability, thereby improving adhesive properties.

As the coating method, a conventional wet coating method can be used to obtain a desired thickness. An applicator may be used.

The curing step is performed by heating with an oven, a hot plate, or the like. The temperature and time may vary depending on the composition, but for example, heat treatment is performed at 80 to 250° C. for 10 to 120 minutes.

Next, a protective layer 107 is formed so as to cover the side of the separation layer by coating the composition for forming a protective layer on the formed separation layer 105 (see FIG. 2 ).

Since the separation layer 105 is a layer for physically removing the glass substrate in the latter part of the process as described above, the peeling force is very weak, so that the protective layer 107 surrounds both sides of the separation layer 105 . It should be formed in an encapsulate form.

The coating method and curing process of the composition for forming the protective layer are the same as described above in the previous step.

Next, a black matrix (BM) layer 113 is formed on the formed protective layer 107 , and red, green, blue, and white pixels are formed therebetween. A layer 109 is formed (see FIGS. 3 and 4 ).

The pixel layer 109 is a layer for realizing a color, and a black matrix layer 113 is disposed together with typically patterned red, green, blue, and white pixel layers. has been The pixel layer 109 includes at least one of three primary colors and white, and the black matrix layer 113 is positioned between each pixel patterned as a light blocking layer to block light in portions except for the pixel area.

A black matrix layer 113 is formed on the protective layer 107 so as to partition a pixel-forming part, and a composition for forming each pixel layer for color expression is applied therebetween, followed by exposure and development in a predetermined pattern. and thermosetting to form. The order of each color of the pixel layer may be arbitrarily selected. In addition, the formation order of the black matrix layer 113 and the pixel layer 109 may vary depending on the purpose.

The coating method and curing process of the black matrix layer 113 and the pixel layer 109 are the same as described above.

Next, the planarization layer 111 is formed by coating the composition for forming a planarization layer over the entire formed pixel layer 109 (refer to FIG. 5 ).

The planarization layer 111 is a layer for correcting a step difference between the pixel layer 109 and improving flatness, and is also called an overcoating layer (OC layer).

The planarization layer 111 is formed over the entire surface of the pixel layer 109 to protect the patterned pixel layer and to planarize the surface of the color filter when forming the pixel electrode thereafter.

The material of the planarization layer 111 is not particularly limited in the present invention, and may be a commonly used polyacrylate, polyimide, polyester, or the like.

The coating method and curing process of the planarization layer 111 are the same as described above.

Next, the protective film 119 coated on one side of the pressure-sensitive adhesive layer 117 is bonded to the planarization layer 111 (see FIG. 6 ).

The protective film 119 uses a material whose physical properties are controlled so as to have appropriate mechanical strength, thermal stability, moisture shielding property and transparency to protect the flexible color filter of the present invention. Examples include polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyetherimide, and polyvinyl chloride.

The pressure-sensitive adhesive layer 117 is not particularly limited in the present invention, and a composition commonly used in this field is possible. Typically, one selected from the group consisting of acrylic resin, silicone resin, polyester, polyurethane, polyamide, polyvinyl ether, modified polyolefin, vinyl acetate/vinyl chloride copolymer, epoxy, fluorine, rubber, and combinations thereof is used can be

The pressure-sensitive adhesive layer 117 may be directly applied to the protective film 119 or formed by attaching an adhesive sheet to the protective film 110 , and the thickness of the protective film 119 and the pressure-sensitive adhesive layer 117 is protected. It can be adjusted according to the material and adhesive strength of the film.

Next, the glass substrate 115 and the separation layer 105 are separated (see FIG. 7 ).

The separation layer 105 is peeled off to remove the glass substrate 115 used for manufacturing the color filter.

The peeling process is performed at room temperature, and as described above, the glass substrate may be removed by physically peeling it off using the weak peeling force of the separation layer 105 to the glass substrate. For example, after fixing the glass substrate and the remaining layers based on the separation layer, it may be performed by a process of separating by physical force.

Next, the base film 101 coated on one side of the adhesive layer 103 is adhered to the separation layer 105 (see FIG. 8 ).

The base film 101 may be used without limitation as an optical transparent film, but among them, it is preferable to use a film excellent in flexibility, transparency, thermal stability, moisture shielding property, retardation uniformity, isotropy, and the like. By using the base film 101, it is possible to prevent damage to the color filter during manufacturing, transportation, and storage, and to handle it easily.

The usable material of the base film 101 may be, for example, polyethylene terephthalate, polyethylene, polystyrene, polycarbonate, polyimide, or the like.

The adhesive layer 103 is used to bond the base film 101 and the separation layer 105 of the color filter, and is disposed on one surface of the base film 101 or the separation layer 105 . A usable adhesive is a photocurable adhesive, and there is no need for a separate drying process after photocuring, and the manufacturing process is simple, so productivity is improved. The photocurable adhesive used in the present invention may be formed using the photocurable adhesive used in the art without any particular limitation. For example, it may include a composition including an epoxy compound or an acrylic monomer.

In addition, in the photocuring of the adhesive layer 103, in addition to electromagnetic waves such as far ultraviolet rays, ultraviolet rays, near ultraviolet rays, infrared rays, X rays, γ rays, etc., electron beams, proton rays, neutron rays, etc. can be used, Hardening by ultraviolet irradiation is advantageous from a hardening rate, the easiness of the availability of an irradiation apparatus, price, etc.

In addition, as a light source for performing the ultraviolet irradiation, a high-pressure mercury lamp, an electrodeless lamp, an ultra-high pressure mercury lamp carbon arc lamp, a xenon lamp, a metal halide lamp, a chemical lamp, a black light, etc. may be used.

Additionally, surface treatment such as corona treatment, flame treatment, plasma treatment, ultraviolet irradiation, primer coating treatment, saponification treatment, etc. may be performed on the base film and/or the separation layer in order to improve the adhesion between the layers.

Next, the bonded protective film 119 and the pressure-sensitive adhesive layer 117 are removed (see FIG. 9 ).

Afterwards, in order to laminate the touch sensor, POL-integrated touch or window film, the protective film 119 and the adhesive layer 117 bonded in the previous step are removed to finally obtain the flexible color filter 100 according to the present invention of FIG. can

Referring to FIG. 10 , the flexible color filter 100 according to the manufacturing method of the present invention includes a base film 101 ; adhesive layer 103; separation layer 105; protective layer 107; patterned red, green, blue, and white pixel layers 109 ; and a planarization layer 111 sequentially stacked.

As described above, for flexibility as a flexible color filter, in the present invention, the polymer material of each layer constituting the flexible color filter is specified and referred to as an organic layer for convenience. , the protective layer 107 , the planarization layer 111 , and at least one layer selected from the group consisting of combinations thereof, and may preferably be a separation layer 105 and a protective layer 107 . More preferably, it may be the separation layer 105 .

A material of the organic layer may be a polymer material. Preferably, the polymer material is polyacrylate, polymethacrylate (eg, PMMA), polyimide, polyamide, polyamic acid, polyvinyl alcohol, polyolefin (eg, PE, PP), polystyrene, polynorbornene, Polymaleimide, polyazobenzene, polyester (eg PET, PBT), polyarylate, polyphthalimidine, polyphenylenephthalamide, polyvinylcinnamate, polycinnamate, coumarin-based polymer, chalcone-based polymer, aromatic and one material selected from the group consisting of acetylene-based polymers, phenylmaleimide copolymers, copolymers thereof, and blends thereof.

The polymer material is applicable to at least one layer selected from the group consisting of the base film 101, the separation layer 105, the protective layer 107, the planarization layer 111, and combinations thereof in each layer. For example, the same or similar polymer is applied to all of the layers, or only polyacrylate is applied to the separation layer 105 and materials known in the art may be used for the remaining layers.

The thickness of each of the organic layers is not particularly limited in the present invention, but for thinning the flexible color filter and the applied flexible display, thinner is more advantageous. Therefore, the thickness of each organic layer is preferably several micrometers (㎛) or less.

Preferably, the flexible color filter 100 according to the present invention

a base film 101 made of a polyimide-based material and having a thickness of 10 to 100 μm;

an epoxy-modified acrylate-based adhesive layer 103 having a thickness of 0.5 to 30 μm;

Separation layer 105 made of a polyacrylic material and having a thickness of 0.01 to 1.0 μm;

a polycycloolefin-based material and a protective layer 107 having a thickness of 0.5 to 5 μm;

a pixel layer 109 with a thickness of 0.5 to 5 μm; and

The polyacrylic material may be a planarization layer 111 having a thickness of 0.5 to 5 μm.

As described above, in the manufacturing process of the flexible color filter according to the present invention, color filter formation including a high-temperature process is performed on a glass substrate, and then the glass substrate is removed using a separation layer at room temperature, and a base film made of a plastic material is laminated. .

In particular, as the peeling force of the separation layer on the glass substrate is limited to a certain range, the peeling process is easily performed and the glass substrate is also cleanly removed, and the surface is lifted or damaged in part is not peeled off after the peeling process.

Therefore, the flexible color filter according to the manufacturing method of the present invention not only prevents thermal deformation of the conventional base film, but also ensures high reliability without deterioration or malfunction due to this, and the color filter pattern has accurate and detailed dimensions. It enables to implement more precise pixels. In addition, various plastic materials can be applied as the base film according to the purpose.

In addition, the flexible color filter according to the manufacturing method of the present invention can be applied to a flexible white organic light emitting display device.

Specifically, the flexible color filter and touch sensor according to the manufacturing method of the present invention, and a POL-integrated touch or window film may be provided on a flexible white organic light-emitting diode (WOLED) substrate.

Therefore, the display device including the flexible color filter according to the present invention solves the problem caused by thermal deformation of the plastic material, so various fields such as automation devices, smart phones, displays, solar cells, and electronic paper that require bending and flexibility and can be used in free form.

Hereinafter, the present invention will be described in more detail through the following examples, which are presented to aid understanding of the present invention, and the present invention is not limited thereto.

Experimental example One. peel force evaluation

After cleaning the 700 μm soda lime glass substrate with isopropyl alcohol, O ₂ plasma treatment (1 sccm O ₂ gas, 10 mTorr process pressure of 500 W DC power for 300 seconds) to modify the substrate surface to be hydrophilic. did

After applying the composition for forming a separation layer according to Table 1 to the plasma-treated glass substrate, it was dried at 150° C. for 20 minutes to form a separation layer with a thickness of 0.3 μm.

Then, a cycloolefin-based protective layer was applied on the formed separation layer, and after baking at 230° C. for 30 minutes, an adhesive-coated protective film (15 μm PSA/38 μm PET, manufactured by Fujimori Co., Ltd.) was applied to the separation layer and the protective layer. After bonding on the formed soda-lime glass substrate, the film and the glass substrate were cut to a size of 25 mm * 100 mm in width * length to prepare a specimen, and then the peel force to the glass substrate and the surface energy after peeling were measured.

The peel force to the glass substrate was measured using a measuring device (Auto gragh (UTM) equipment, manufactured by Shimadzu Corporation) under conditions of a peeling rate of 300 mm/min and 90°.

In addition, the surface energy was measured using a contact angle measuring instrument (CAM101, manufactured by KSV Instruments).

division Acrylic copolymer polymer material on a glass substrate
about peel force
(N/mm) surface energy
(mN/m) Kinds content
(weight%) One A/C/D 10/1/89 polyacrylic 0.05 55 2 A/B/D 10/1/90 0.05 55 3 A/B/C/D 10/1/3/86 10 55 4 A/B/C/D 10/5/1/84 10 55 A: Acrylic copolymer
B: acrylic monomer
C: Melamine-based curing agent
D: Propylene glycol monomethyl ether acetate

Example 1 and comparative example One. flexible Manufacture of color filters

[Example 1]

After coating the composition for forming a separation layer according to 1 of Table 1 on a glass substrate, it was cured at 150° C. for 20 minutes to form a separation layer with a thickness of 0.3 μm. Then, a protective film was coated to surround both sides of the separation layer, and then a protective layer having a thickness of 1.5 μm was formed by heat treatment at 230° C. for 20 minutes.

Next, a black matrix layer (TBK-04) and patterned pixel layers (TR-800, YG-800, and YB-800) were formed on the passivation layer.

Next, a planarization film (DW-LT09) was formed on the pixel layer, and then the planarization layer and a protective film (15 µm PSA/38 µm PET, Fujimori Co., Ltd.) with an adhesive were attached to each other.

Then, at room temperature, the glass substrate was peeled from the separation layer and separated, and then a base film coated with an adhesive (KR15P, ADEKA) was laminated to prepare a color filter.

[Comparative Example 1]

The composition for forming the separation layer of Example 1 was prepared in the same manner except that the composition of Table 1 4 was used instead of Table 1.

As a result of comparing the flexible color filters finally obtained through the above Examples and Comparative Examples, it was confirmed that the flexible color filter according to Example 1 was excellent in appearance and quality, and in the case of Comparative Example, the flexible color filter was not peeled off. .

The flexible color filter manufactured according to the present invention is applied as a color filter of a flexible white organic light emitting display device.

100: flexible color filter
101: base film 103: adhesive layer
105: separation layer 107: protective layer
109: pixel layer 111: planarization layer
113: black matrix layer 115: glass substrate
117: adhesive layer 119: protective film

Claims (4)

forming a separation layer by directly coating a composition for forming a separation layer on a glass substrate;
coating a composition for forming a protective layer on the separation layer to form a protective layer to cover up to the side of the separation layer;
forming a black matrix (BM) layer on the passivation layer, and forming red, green, blue, and white pixel layers therebetween;
forming a planarization layer by coating a composition for forming a planarization layer over the entire pixel layer;
bonding a protective film coated on one side of the pressure-sensitive adhesive layer with the planarization layer;
separating the glass substrate from the separation layer;
adhering the base film coated on one side of the adhesive layer with the separation layer; and
Manufacturing including; removing the protective film;
The separation layer is a method of manufacturing a flexible color filter, characterized in that the peeling force to the glass substrate is 1 N/25 mm or less. The method according to claim 1, wherein the separation layer has a peel force of 0.1 N/25 mm or less with respect to the glass substrate. The method according to claim 1, wherein the thickness of the separation layer is in the range of 1 to 1000 nm. The method according to claim 1, wherein at least one layer selected from the group consisting of the base film, the separation layer, the protective layer, the planarization layer, and combinations thereof is polyacrylate, polymethacrylate, polyimide, polyamide, polyamic acid, polyvinyl Alcohol, polyolefin, polystyrene, polynorbornene, polymaleimide, polyazobenzene, polyester, polyarylate, polyphthalimidine, polyphenylenephthalamide, polyvinylcinnamate, polycinnamate, coumarin-based polymer, chalcone-based A method of manufacturing a flexible color filter comprising at least one material selected from the group consisting of a polymer, an aromatic acetylene-based polymer, a phenylmaleimide copolymer, a copolymer thereof, and a blend thereof.

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