JP2006281486A - Removing plate for printing, and pattern forming method using the removing plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a removing plate used for a reversing printing method having a pixel pattern area and a peripheral pattern area with different sizes and a pattern forming method. <P>SOLUTION: The removing plate is used for the pattern forming method in which a colored coated film comprising colored inks is formed on a blanket roller and two or more of patterns comprising the colored coated film with different sizes are formed on the blanket roller using the removing plate on which a pattern reverse relative to the above pattern is formed, a peripheral pattern is arranged through a pixel pattern area and an opening area formed around the pixel pattern area, and the opening area has a opening depth larger than the opening width, thereby the above problem is solved. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

 The present invention forms a colored coating film made of a colored ink on a blanket roller, and a removal plate used for simultaneously forming two or more patterns of different sizes from the colored coating film, and pattern formation using this removal plate Regarding the method.

As a method for forming a fine pattern such as a color filter, for example, the reverse printing method described in Patent Document 1 forms a three-color ink coating film having a uniform thickness on the surface of a cylindrical blanket 2 (see FIG. 1). ).
Next, as shown in FIG. 2, a desired pixel pattern, a pixel pattern portion 5a having a pattern opposite to the pixel pattern and a reverse pattern, and a peripheral pattern portion 5b through the opening 6 in the pixel pattern portion 5a. As shown in FIG. 3, an unnecessary coating film 8 is removed using a removal plate 4 having
In the above process, the desired pixel pattern 9 and the peripheral pattern 10 are formed on the blanket 2 as shown in FIG. Then, a desired pattern is formed by pressing and moving the blanket to the substrate 11.
However, when the patterns having different sizes are formed by the above printing method, the sizes of the pixels of the pixel pattern portion 5a and the peripheral pattern portion 5b constituting the removal plate 4 are different, and therefore the size of the opening for forming each pixel. Is different. Here, in order to provide the removal pattern 5 with the pixel pattern portion 5a and the peripheral pattern portion 5b, the removal plate material (glass) is generally formed by an etching method.
When the large peripheral pattern portion 5b is formed simultaneously with the pixel pattern portion 5a by this etching method, an opening 6 having a depth equivalent to the width is formed. As shown in FIG. In other words, the contact with the bottom 13 of the opening 6 causes a pattern loss 14 as shown in FIG. 7, and a desired pattern cannot be formed.
Therefore, the removal plate has to be formed by dividing the image pattern portion and the peripheral pattern portion into two portions, making the manufacturing complicated and requiring a long time for manufacturing.
Japanese Patent Laid-Open No. 11-058921

 The present invention has been conceived in view of the above circumstances, and provides a removal plate having a pixel pattern portion and a peripheral pattern portion of different sizes and a pattern forming method, which are plates used in a reverse printing method. With the goal.

The invention according to claim 1 is a method in which a colored coating film made of colored ink is formed on a blanket roller, and two or more patterns having different sizes are removed from the colored coating film in a pattern opposite to the pattern. A removal plate used in a pattern forming method for forming on a blanket roller using a plate, wherein the removal plate is provided with a peripheral pattern through a pixel pattern portion and an opening formed around the pixel pattern portion. And the opening has a larger opening depth than the opening width.

The invention according to claim 2 is the printing removal plate according to claim 1, wherein the pixel pattern portion is a black pattern portion and the peripheral pattern portion is a light shielding pattern portion.

The invention according to claim 3 is the print removal plate according to claim 1 or 2, wherein the pixel pattern portion and the peripheral pattern portion are formed of different members.

The invention of claim 4 is the printing removal plate according to any one of claims 1 to 3, wherein the removal plate is made of glass.

A fifth aspect of the present invention is a pattern forming method, wherein patterns having different sizes are formed using the removal plate according to any one of the first to fourth aspects.

In the present invention, since the opening between the pixel pattern portion and the peripheral pattern portion has a depth larger than the width, the coating film on the blanket is not in contact with the bottom of the opening even in a large pattern portion. It was possible to form a beautiful pattern.
In addition, by configuring the pixel pattern portion and the peripheral pattern portion as separate members, complicated processing such as two etching processes is unnecessary, and it is possible to easily produce a removal plate having pattern portions of different sizes. .

A colored coating film made of colored ink is formed on a blanket roller, and two or more patterns of different sizes are formed on the blanket roller from the colored coating film using a removal plate on which a pattern opposite to the pattern is formed. This is a removal plate used in the pattern forming method.
As shown in FIG. 8, the removal plate 4 includes a pixel pattern portion 5a on a base material 20 and a peripheral pattern 5b formed of separate members via an opening 6 formed around the pixel pattern portion 5a. Has been.
In this way, by forming the pixel pattern portion 5a and the peripheral pattern portion 5b on the base material 20 as separate members in this way, the width of the opening 6 can be set as appropriate, so the opening depth is made larger than the opening width. Became easier.

In the color filter, as the patterns having different sizes, the pixel pattern may be a black pattern, and the peripheral pattern may be a light shielding pattern.
A color filter is completed by providing a red pattern, a green pattern, and a blue pattern between the black patterns.
Here, the means for providing the red pattern, the green pattern, and the blue pattern may be formed by selecting an appropriate means such as the printing method described above, a printing method other than those described above, an ink jet method, or a photolithography method.

The material of the removal plate 4 can be appropriately selected from metal, glass, resin, or a composite material thereof, but it is preferable to use a material having a small expansion coefficient such as glass.

When the pattern is formed by the above-described reverse printing method from the ink coating film formed on the blanket using the removal plate, the opening portion is compared with the pixel pattern portion in the removal step of removing unnecessary portions. Even if it is formed with a width 10 times or more, a certain depth or more is secured, so that the coating film on the blanket surface does not contact the bottom of the opening, and a desired pattern can be formed.

  The pattern forming method of the present invention can be used for forming a fine pattern such as a color filter, an EL element, or a circuit pattern by a printing method.

It is explanatory drawing which shows the state of the blanket in the pattern formation of a reverse printing method. It is explanatory drawing of the removal plate in the pattern formation of a reverse printing method. It is explanatory drawing which shows the state which removed the unnecessary part of the coating film with the removal plate in the pattern formation of a reverse printing method. It is explanatory drawing which shows the state in which the pattern was formed on the blanket in the pattern formation of a reverse printing method. It is explanatory drawing which shows the state which formed the pattern in the board | substrate by pattern formation of the reverse printing method. It is explanatory drawing which shows the example of the malfunction in the pattern formation of a reverse printing method. It is explanatory drawing which shows the example of the pattern produced by the malfunction of FIG. It is explanatory drawing which shows the example of the removal plate of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Blanket 3 ... Coating film 4 ... Removal plate 5a ... Pixel pattern part 5b ... Peripheral pattern part 6 ... Opening part 9 ... Pixel pattern 10 ... Peripheral pattern 11 ... Substrate 13 ... Bottom part 20 ... Base material

Claims (5)

 A colored coating film made of colored ink is formed on a blanket roller, and two or more patterns of different sizes are formed on the blanket roller from the colored coating film using a removal plate on which a pattern opposite to the pattern is formed. A removal plate used for a pattern forming method, wherein the removal plate is provided with a peripheral pattern through a pixel pattern portion and an opening formed around the pixel pattern portion, and the opening portion is an opening. Print-removed plate characterized in that the opening depth is larger than the width. The printing removal plate according to claim 1, wherein the pixel pattern portion is a black pattern portion and the peripheral pattern portion is a light shielding pattern portion. The printing removal plate according to claim 1, wherein the pixel pattern portion and the peripheral pattern portion are formed of different members. The printing removal plate according to claim 1, wherein the removal plate is made of glass. A pattern forming method, wherein patterns having different sizes are formed using the removal plate according to claim 1.

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