KR101219098B1 - Color filter substrate fabricating apparatus and method using ink-jet printing method - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing a color filter substrate of an inkjet printing method and a method for manufacturing a color filter substrate using the same, and more particularly, a pattern on a substrate using a blanket including a printed layer having a patterned groove formed thereon. It characterized in that to form. The manufacturing process of the color filter substrate according to the present invention is simplified compared to the conventional process, saving time and cost, less material consumption, no need to manufacture a mask or printing plate, and can maintain the shape of the pattern stably to provide excellent quality It is possible to provide a color filter substrate.

Description

Color filter substrate manufacturing apparatus and manufacturing method of inkjet printing method {COLOR FILTER SUBSTRATE FABRICATING APPARATUS AND METHOD USING INK-JET PRINTING METHOD}

The present invention relates to an apparatus for manufacturing a color filter substrate of an inkjet printing method and a method for manufacturing a color filter substrate using the same.

In general, electronic devices such as liquid crystal displays and semiconductor devices are fabricated by forming a pattern of numerous layers on a substrate. In order to form such a pattern, photolithography processes have been mainly used until now.

The photolithography process uses a principle that changes the properties by causing a chemical reaction when a specific photoresist (hereinafter referred to as 'PR') receives light, and is used as a negative photoresist used in color filters. Since the photoresist is crosslinked by light, only the unexposed parts are removed by dissolving in the developer, and the positive photoresist used for the metal electrode patterns of semiconductor devices and TFTs is light. By this, the exposed portion is decomposed to form an acid, so that a difference in solubility with respect to the developer with the non-exposed portion occurs rapidly, and only the exposed portion is melted and removed. Accordingly, in the photolithography process, by selectively irradiating light to PR using a mask of a pattern to be obtained, a pattern identical or inverted to the pattern of the mask is formed, and the PR is applied to the substrate. An application step, an exposure step of selectively irradiating light using a mask, and then a developing step of forming a pattern by removing PR of an exposed part that has received light or a non-exposed part that does not receive light using a developer. However, the photolithography process requires fabrication of a predetermined pattern mask, and in the case of positive photoresist, a chemical etching and stripping process is repeated as a post process for forming a metal electrode pattern. There is a problem that generates a large amount of waste. This leads to an increase in production costs, which reduces the competitiveness of the product.

As a new pattern forming method for solving the drawbacks of the photolithography process, roll printing using a printing roll has recently been proposed, and further studies on the manufacturing technology of a color filter substrate using an inkjet printing technique have been conducted. It is actively underway.

There are various methods of roll printing, but it can be roughly divided into two types, gravure printing and reverse offset printing.

Gravure printing is a printing method in which the ink remaining in the grooves is scraped off by printing ink on a printing plate having grooves and then transferring the ink remaining on the grooves to the substrate through a transfer roll. Since the ink is transferred onto the substrate, the transfer roll corresponding to the area of the desired display element is used, so that even in the case of the display element of a large area, the pattern can be formed by one transfer. The gravure printing method is known as a method suitable for printing in various fields such as publishing, packaging, cellophane, vinyl, polyethylene, etc., and forms color patterns such as red, green, and blue of color filters and prevents static electricity of PDP displays. Research has been made to apply the gravure printing method to the formation of a metal pattern for forming an EMI shielding film.

However, in gravure printing for forming a fine pattern, a printing plate is formed by forming a groove on a large substrate such as glass by etching or the like, and is transferred to a substrate after being transferred to a part of a transfer roll instead of the entire ink filled in the groove. Therefore, in order to secure the thickness uniformity of the pattern formed by the transfer to the substrate, a press process is additionally required. Therefore, the size of the pattern is large and useful for forming a stripe-shaped pattern, but the black matrix of the color filter ( It is not suitable for forming a precise pattern such as a black matrix) or a pattern of a TFT substrate. Accordingly, a reverse offset printing method is mainly employed for precise fine pattern formation.

Unlike gravure printing, the reverse offset printing method applies ink to a blanket, and then touches the protrusions of the printing plate having the grooves with the ink applied to the blanket to remove unwanted pattern parts first, and transfers the pattern parts remaining on the blanket to the substrate. As a method of forming a pattern in a method, it is not only capable of forming fine patterns of various shapes such as BM and TFT as well as the color pattern of the color filter, but also a very popular technology in terms of reducing costs and improving production speed. However, in order to obtain a precise pattern, a good quality blanket is required, and it is difficult to maintain a pattern of a certain shape.

The inkjet printing method is more effective in the manufacture of a color filter substrate because of the method of dispersing ink, which requires less material consumption and does not require the manufacture of a mask or a printing plate than the roll printing method. However, such an inkjet printing method requires a partition on a printing object in order to stably maintain the shape of a pattern when ink is jetted.

Therefore, there is a continuous demand for a method of manufacturing a color filter of a simpler quality while maintaining the advantages of the inkjet method.

The present invention has been made in accordance with the above needs, in the manufacture of a color filter using an inkjet printing method, using a blanket and a printing roll used in the roll printing method, a pattern-shaped groove on the blanket It is characterized in that the formation directly.

By forming a pattern-shaped groove directly on the blanket and jetting ink onto the groove to transfer the pattern to the substrate, it is possible to stably maintain the pattern shape even if there is no separate partition device, and to form a fine pattern in a simple manner. An object of the present invention is to provide a color filter substrate manufacturing apparatus and a color filter substrate manufacturing method using the same.

In order to solve the above problems,

The present invention provides a printed layer on which pattern irregularities are formed. The pattern may be one or more patterns selected from the group consisting of BM patterns, R, G, B cell patterns, and column spacer patterns.

The printed layer may be made of an organic polymer containing silicon such as poly-di-methyl-siloxane (PDMS) or an organic polymer of polyurethane material, and among these, preferably, an organic polymer containing silicon such as PDMS Is made. When the printing layer of the blanket is made of an organic polymer material containing silicon such as the PDMS, the ink filled in the grooves has a desired shape because it is not easily absorbed by the ink or solvent into the printing layer but also has the desired durability. This is because it can be easily transferred to the substrate.

The print layer may include a plurality of convex portions and a plurality of grooves, and may further include a coating layer having a small adhesion force with ink on the convex portion.

The coating layer may be formed using a solution containing a fluorine-based surfactant or a polymer solution prepared from a monomer having a high fluorine content.

The present invention comprises the steps of preparing a module substrate for forming a pattern irregularities (module); Applying and curing an organic polymer on the substrate; And after the organic polymer is cured, separating the organic polymer layer from the substrate.

The present invention also provides a blanket comprising the printed layer.

The blanket comprises the steps of manufacturing a support layer; Applying a cushion layer forming mixture to one surface of the support layer and curing the mixture to form a cushion layer; The printing layer manufactured by the method of manufacturing the printing layer is manufactured by inverting the supporting layer and forming a surface on the opposite side.

An inkjet printing method of manufacturing a color filter substrate according to an embodiment of the present invention, the blanket, a printing roll to wind the blanket so that the blanket is rotatable over the substrate, and a discharge device for ejecting ink to the rotating blanket It is provided.

An inkjet printing method of manufacturing a color filter substrate according to an embodiment of the present invention may include: preparing a blanket using the blanket manufacturing method; Providing a printing roll capable of winding the blanket such that the blanket is rotatable over a substrate; Winding the blanket on a printing roll; Filling ink ejected from the ejection apparatus into the groove portion of the blanket while rotating the printing roll on which the blanket is wound; And rotating the printing roll on which the ink-filled blanket is wound at a constant speed, thereby transferring the pattern onto the substrate.

The speed at which the printing roll rotates in the step of filling ink into the grooves of the blanket is preferably in the range of 10 to 200 mm / s. If the speed is less than this range, the ink is discharged up to the height of the convex portion, and the ink also adheres to the convex portion, which may lead to the formation of a defective pattern, and also takes a long time to fill the ink into the groove, which increases the processing time. In the case of exceeding the above range, due to the high speed, ink may not be sufficiently filled in the groove so that the transfer of the pattern may be incomplete, and the shape may be deformed and transferred.

The present invention provides a color filter substrate made by the method for manufacturing a color filter substrate of the inkjet printing method.

The inkjet printing method of manufacturing a color filter substrate according to the present invention and a color filter substrate manufacturing method using the same can be simplified compared to the conventional process to save time and money, less material consumption, no need to manufacture a mask or printing plate Since the shape of the pattern can be maintained stably, it is possible to provide a high quality color filter substrate.

1 is a schematic cross-sectional view showing a structure of a blanket according to an embodiment of the present invention.
2 is a schematic cross-sectional view of a structure of a blanket further including a coating layer according to an embodiment of the present invention.
3 is a view briefly showing a method for manufacturing a printed layer of a blanket according to an embodiment of the present invention.
4 is a view briefly illustrating a method of manufacturing a color filter substrate of an inkjet printing method according to an embodiment of the present invention.
5 is a view briefly illustrating a method of forming a column spacer on a color filter substrate according to an embodiment of the present invention.

The present invention is a color filter substrate manufacturing apparatus of the inkjet printing method and a color filter substrate manufacturing method using the same, by using a blanket comprising a printed layer having a pattern-shaped unevenness to form a pattern stably even if there is no other partition device on the substrate There is a characteristic to form.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

An inkjet printing type color filter substrate manufacturing apparatus largely includes a blanket 1, a printing roll 2, and a discharge device 3. The blanket 1 largely includes a print layer 11, a support layer 12, and a cushion layer 13.

FIG. 1 is a schematic cross-sectional view of a structure of a blanket 1 according to an exemplary embodiment of the present invention, and the printing layer 11 will be described in detail with reference to FIG. 1.

The print layer 11 serves to attach ink onto the substrate by directly attaching the ink 31 ejected from the ejecting apparatus 3 and contacting the substrate 4.

The print layer 11 according to an embodiment of the present invention is a print layer 11 in which a plurality of irregularities are formed, unlike a conventional printing layer without irregularities, and the irregularities include grooves and convex portions, The portion is called the convex portion 112 and the recessed portion is called the groove portion 111. The print layer 11 is an essential component of the present invention, and by including a plurality of grooves 111, the present invention to be described below can achieve the desired effect.

In the printing layer 11 according to the exemplary embodiment of the present invention, the ink is filled only in the groove 111 except for the convex portion 112, and the convex portion is not attached to the ink. Due to this feature, even if there is no separate partition device on the substrate 4, the ink filled in the groove 111 can be transferred to the substrate stably.

The size and shape of the groove 111 is not particularly limited, and the size and shape are determined according to the shape of the pattern 5 to be transferred onto the substrate.

The pattern is not particularly limited, but may be, for example, one or more patterns selected from the group consisting of BM patterns, R, G, B cell patterns, and column spacer patterns.

As described above, in the apparatus for manufacturing a color filter substrate, by using a printing layer having a groove having a pattern shape, it is possible to provide a apparatus for manufacturing a color filter capable of manufacturing a color filter substrate having excellent quality and saving time and cost. .

The thickness of the printed layer is the length from the boundary of the support layer and the printed layer to the groove portion, the thickness is usually in the range of 0.1 ~ 1.0mm but not particularly limited thereto.

The printing layer 11 has an adhesive force with the ink, and has a desirable durability of the blanket, it is not easy to absorb the ink or solvent into the printing layer, and the ink filled in the grooves can be easily transferred to the substrate. Can be made of organic polymers.

The organic polymer may be an organic polymer containing silicon such as PDMS (poly-di-methyl-siloxane) or an organic polymer made of polyurethane, and an organic polymer including silicon is preferable.

The present invention further provides a printed layer 11 further comprising a coating layer 114.

Specifically, when the ink is attached to the convex portion 112 of the printing layer 11, not only the ink filled in the groove 111 of the pattern shape but also the ink of the convex portion 112 is transferred onto the substrate. Defective pattern is formed. In order to prevent such defective pattern formation, it is preferable to form a coating layer 114 having a small adhesion force with ink on the upper surface 113 of the convex portion as shown in FIG. 2. Although the thickness of the coating layer is very thick than the actual thickness of the coating layer in order to indicate the position of the coating layer, the coating layer is a very thin layer, and the coating layer is included on the outer wall of the groove, indicating that it is not difficult to completely fill the ink.

The coating layer 114 is coated with a material having a small adhesion force with the ink 31 so that the ink is not attached to the convex portion even when the ink 31 is discharged from the ejection apparatus 3 to the convex portion 112, and the pattern has a pattern shape. Ink is attached only to the groove 111 to serve to prevent a defective pattern.

The coating layer may be formed using a solution containing a fluorine-based surfactant or a polymer solution prepared from monomers having a high fluorine content, which may significantly lower the surface tension of the convex portion, but the coating layer forming material is not particularly limited thereto. .

The fluorine-based surfactant may be a known one used in the art, for example, ammonium perfluoroalkylsulfonate, perfluoroalkyl ethoxylate, sodium dodecylbenzenesulfonate ( Sodium dodecylbenzenesulfonate, Calcium dodecylbenzenesulfonate, Sodium dioctylsulfosuccinate, Sodium polyoxyethylene alkylarylsulfate, Ammonium polyoxyethylene alkylsulfate , Ammonium polyoxyethylene alkylarylsulfate, ammonium perfluoroalkylsulfonate, polyoxyethylene alkyl ether sulfate, and the like.

The polymer prepared from the monomer having a high fluorine content may be one known in the art, and examples thereof include polytetrafluoroethylene (PTFE), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), and tetra Fluoroethylene-perfluoro (alkylvinyl ether) copolymer (PFA), ethylene-tetrafluoroethylene copolymer (ETFE), ethylene-chlorotrifluoroethylene copolymer (ECTFE), etc. are mentioned.

The printing layer of the present invention may be manufactured by a conventional manufacturing method without any particular limitation except for forming a groove having a pattern shape, for example, the printing having the groove 111 having the pattern shape formed with reference to FIG. 3. Look at the manufacturing method of the layer (11). First, a module 6 for a module having a desired pattern shape is formed. Next, an organic polymer is applied and cured on the module substrate 6. After the organic polymer is cured, when the organic polymer layer is separated from the module substrate 6, a printed layer 11 having a desired pattern shape groove 111 may be manufactured.

Referring to FIG. 1, the printed layer 11 in which the patterned groove 111 is formed is formed on the support layer 12.

The support layer 12 serves to support the print layer 11 and the cushion layer 13, and the material of the support layer is elastic in order to suppress the stretching of the print layer and the cushion layer and to improve the accuracy of printing. It is preferable to use small films. Especially the film of resin whose tensile elasticity modulus is 1000 Mpa or more, especially 2000-5000 Mpa in normal temperature is suitable. Known resins may be used as long as the resin film satisfies these conditions, and examples thereof include polyester films such as polyethylene terephthalate (PET), polycarbonate films, and high density polyethylene (HDPD) films. And polypropylene films (Polypropylene, PP) and the like.

The thickness of the support layer 12 is not limited, but is preferably 0.1 to 0.5 mm, preferably 0.2 to 0.45 mm. If the thickness of the substrate is less than this range, the effect of reinforcing and supporting the cushion layer or the printing layer by the substrate may be insufficient. If the thickness is exceeded, the thickness of the blanket may be thickened, so that the blanket is wound on the printing roll. A problem that does not dry may occur.

Referring to FIG. 1, the support layer 12 is formed on the cushion layer 13.

The cushion layer 13 serves to compensate for the difference in thickness when the surface of the print layer 11 is not uniform. Like the print layer 11, the cushion layer 13 is mainly made of PDMS foam or polyurethane foam. It is made of a structure, but is not particularly limited thereto.

Although the thickness of the said cushion layer 13 is not restrict | limited, It is preferable that it is 0.05-2 mm, and it is preferable that it is 0.3-1 mm. If the thickness of the cushion layer 13 is less than this range, there is a fear that the effect of adjusting the pressure of the cushion layer 13 may not be sufficiently obtained. If the thickness of the cushion layer 13 is exceeded, the thickness of the substrate is relatively small, so that the support between the layers of the substrate is small. There is a fear that a problem of ineffectiveness may occur.

The printed layer 11 having the pattern-shaped groove 111 described above is formed on the support layer 12, and the cushion layer 13 is formed on the opposite side of the support layer 12 on which the printed layer 11 is formed. (1) is achieved. The blanket 1 is rotatable over the substrate by the printing roll 2.

Specifically, referring to FIG. 4, the printing roll 2 may wind the blanket 1 so that the blanket 1 is rotatable over the substrate 4, and the cushion layer 13 of the blanket 1 may be formed. The surface of the printing roll 2 is wrapped.

The printing roll is made of a metal of SUS (Steel Use Stainless) material as is known, the length and diameter is not particularly limited, but the length of the printing roll is 1.1 ~ 1.3 times the length of the width of the substrate used It is preferable to have, and the diameter of the printing roll is preferably such that the length of the circumference of the printing roll is 1.1 to 1.5 times the length of the substrate to be used. If the length and diameter of the printing roll are less than the above range, the printing layer wound on the printing roll may not be wide enough to transfer the pattern to the entire substrate. If the printing roll is over the above range, the size of the printing roll will be larger than necessary to inefficiently. do.

As the printing roll 2 on which the blanket 1 is wound rotates over the substrate, the substrate 4 advances in a direction corresponding to the rotation direction of the printing roll 2. At this time, the printing layer 11 of the blanket 1 is in contact with the substrate so that the ink 31 filled in the groove 111 having the pattern of the printing layer 11 pattern is transferred onto the substrate 4.

The speed at which the printing roll 2 rotates in the step of filling the grooves of the blanket 1 is preferably in the range of 10 to 200 mm / s. If the speed is less than this range, the ink 31 is discharged to the height beyond the height of the convex portion 112, and ink is also attached to the convex portion 112, which may cause a bad pattern formation, and also a lot of time to fill the ink into the grooves. This process takes a long time, and if it exceeds the above range, the grooves 111 may not be sufficiently filled with the ink 31, which may cause a problem that the desired pattern 5 is not transferred onto the substrate 4. . It is also preferable that the rotational speed of the printing roll is in the range of 10 to 200 mm / s in the step of transferring the pattern onto the substrate from the printing roll on which the ink-filled blanket is wound. If the speed is less than this range, it takes a long time to transfer the pattern, and the process time is long. If the speed exceeds this range, the transfer of the pattern is not only incomplete but also the shape is deformed due to the high speed. It may be.

The ink 31 is discharged from the discharge device 3, and the ink is discharged only to the groove 111 without discharging ink to the convex portion 112 of the printed layer.

The discharge device 3 is spaced apart from the blanket 1 by a predetermined distance in consideration of the thickness of the ink 31, and can be used without limitation as long as it is a device for discharging ink. For example, a nozzle of a thermal type or a piezo type This equipped discharge device can be used.

The present invention is a blanket (1) comprising a printed layer formed with a groove portion of the pattern shape as described above; A printing roll 2 for allowing the blanket 1 to rotate on the substrate; It provides a color filter substrate manufacturing apparatus capable of manufacturing a color filter substrate of excellent quality, including; and a discharge device (3) for filling the ink in the pattern portion groove 111.

An excellent quality color filter substrate may be manufactured using the color filter substrate manufacturing apparatus. Specifically, referring to FIG. 4, the ink discharged from the discharge device 3 is filled in the groove portion 111 having a pattern shape of the blanket 1. At this time, the printing roll wound around the blanket is rotated so that ink is filled in all of the grooves 111 having a pattern shape of the blanket.

The filling of the ink may include filling the ink 31 in one direction of the blanket 1 and simultaneously transferring the ink onto the substrate 4 in the other direction, that is, filling and transferring the ink simultaneously. After filling all the ink into the grooves 111 of the blanket 1, the substrate 4 may be prepared to transfer the ink onto the substrate, that is, the ink filling and the transfer may be separated.

The printing roll 2 wound around the blanket 1 filled with the ink 31 rotates on the substrate at a speed within a range of 10 to 200 mm / s, and at the same time the substrate is rotated in a direction corresponding to the rotational direction of the printing roll. Move forward.

The printing layer 11 of the blanket is in contact with the substrate 4 while the printing roll wound around the blanket is rotated on the substrate. The ink filled in the patterned groove 111 of the printing layer 11 is transferred onto the substrate when the printing layer is in contact with the substrate. Accordingly, the pattern 5 corresponding to the pattern 111 of the pattern shape of the printed layer 11 may be formed on the substrate 4 having no separate partition device.

A printing layer having a groove portion of the BM pattern in the same manner as described above; A printed layer having groove portions of R, G, and B cell patterns; And a printed layer having grooves of the column spacer patterns; and a black matrix (BM), red, green, blue, overcoat, and column space pattern through a color filter manufacturing apparatus. The formed color filter It can be manufactured in excellent quality.

Hereinafter, the present invention will be described in more detail with reference to the following specific examples, but the scope of the present invention is not limited to the following examples.

One. Printing layer  Produce

In order to manufacture a printed substrate having column spacer pattern irregularities, a master mold was manufactured by forming a column spacer pattern having a thickness of 4 to 8 μm through a photolithography process using a photoresist for column spacers on a glass substrate. .

Next, PDMS mixes Sylgard 184 (Dow Corning, USA) with a base to hardener ratio of 10: 1 and removes the bubbles, and then casts it onto the master mold evenly with an applicator in an area of about 20 cm X 40 cm. And cured at 90 ° C. for 1 hour to prepare a printed layer having a groove portion having a column spacer pattern shape having a thickness of 600 μm. Then, a 350-micrometer-thick polyethylene terephthalate (PET) film was attached to the support layer using an adhesive to complete the PDMS printed layer pad. Then, a 350-micrometer-thick polyurethane foam film was pasted using an adhesive to prepare a blanket having a thickness of 1,300 micrometers composed of a printed layer-supporting layer-cushion layer.

2. Manufacture of color filter substrate manufacturing apparatus

The blanket was mounted on a metal printing roll made of SUS material, and the rotation speed may be adjusted by mounting a servo moter on the printing roll.

The ejection apparatus includes a piezo-type nozzle into which ink is ejected and a storage unit for storing ink. The ejection apparatus is disposed on the upper surface of the blanket at a distance of 100 to 1,000 μm from the blanket to print the blanket while the printing roll on which the blanket is wound is rotated. The ink ejected from the ink ejecting portion is filled in the groove portion of the pattern formed in the layer.

3. Manufacturing of color filter substrate

The color filter substrate was manufactured using the manufactured color filter substrate manufacturing apparatus. First, ink was filled into the grooves in the shape of the column spacer pattern of the blanket by the discharge device. At this time, the printing roll wound around the blanket was rotated and ink was continuously filled in one direction of the blanket, and at the same time, the transfer of the pattern onto the substrate was performed in the other direction.

The substrate is a substrate in which black matrix (BM), red, green, blue, and overcoat are formed in this order, and the direction corresponding to the direction in which the blanket-rolled printing roll rotates. It was moved by the conveyor belt to move forward. The speed is determined according to the rotational speed of the printing roll and in this embodiment the rotational speed of the printing roll was 10 ~ 200 mm / s.

The printing roll wound the blanket was rotated onto the substrate to contact the substrate with the printing layer of the blanket, thereby transferring the column spacer pattern onto the substrate, thereby manufacturing a color filter substrate.

The above description is merely illustrative of the technical idea of the present invention and those skilled in the art to which the present invention pertains will be capable of various modifications and variations without departing from the essential characteristics of the present invention.

Accordingly, the drawings disclosed in the present invention and the description thereof are not intended to limit the technical spirit of the present invention, but to explain the protection scope of the present invention should be interpreted by the following claims, and all equivalents thereof are included in the claims. The technical idea should be construed as being included in the scope of the present invention.

1. Blanket
11. Printing layer
111. The groove
112. Convex
113. Top surface of convex part
114. Coating Layer
12. Support layer
13. Cushion layer
2. Printing roll
3. Discharge device
31. Ink
4. Substrate
5. Pattern
6. Module Board

Claims (16)

As a printed layer on which pattern irregularities are formed,
The printed layer has a plurality of convex portions and a plurality of grooves,
The printing layer, characterized in that it comprises a coating layer having a small adhesion and ink on the upper surface of the convex portion. The print layer of claim 1, wherein the pattern is at least one pattern selected from the group consisting of a BM pattern, an R, G, B cell pattern, and a column spacer pattern. The printing layer of claim 1, wherein the printing layer is made of poly-di-methyl-siloxane (PDMS) or polyurethane. delete The printing layer of claim 1, wherein the coating layer is formed using a solution containing a fluorine-based surfactant or a polymer solution prepared from a monomer having a high fluorine content. A blanket comprising the print layer according to any one of claims 1 to 3 and 5. Manufacturing a module substrate having a pattern-shaped unevenness; Applying and curing an organic polymer on the substrate; And after the organic polymer is cured, separating the organic polymer layer from the substrate.
The printed layer has a plurality of convex portions and a plurality of grooves,
And a coating layer having a small adhesion force with ink on the convex portion upper surface. The method of claim 7, wherein the pattern is at least one selected from the group consisting of a BM pattern, an R, G, B cell pattern, and a column spacer pattern. The method of claim 7, wherein the organic polymer is poly-di-methyl-siloxane (PDMS) or polyurethane. delete The method of claim 7, wherein the coating layer is formed using a solution containing a fluorine-based surfactant or a polymer solution prepared from a fluorine-containing monolayer. Preparing a support layer;
Applying a cushion layer forming mixture to one surface of the support layer and curing the mixture to form a cushion layer;
A method for manufacturing a printed layer according to any one of claims 7 to 9 and 11, inverting the support layer to form a printed layer on the opposite side;
Method for producing a blanket comprising a. In the color filter substrate manufacturing apparatus of the inkjet printing method,
A color filter substrate manufacturing apparatus comprising a blanket according to claim 6, a printing roll capable of winding the blanket so that the blanket is rotatable over the substrate, and a discharge device for ejecting ink onto the rotating blanket. In the inkjet printing method of manufacturing a color filter substrate,
Preparing a blanket by the method of manufacturing a blanket according to claim 12;
Providing a printing roll capable of winding the blanket such that the blanket is rotatable over a substrate;
Winding the blanket on a printing roll;
Filling ink discharged from a discharge device into the blanket groove; And
Transferring the pattern onto the substrate by rotating the printing roll on which the ink-filled blanket is wound at a constant speed;
Color filter substrate manufacturing method comprising a. 15. The method of claim 14, wherein the blanket-wound printing roll has a speed in a range of 10 to 200 mm / s. Color filter substrate made by the color filter substrate manufacturing method according to claim 15.

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