JPH09166705A - Apparatus for producing color filter and production method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obviate the distortion of the flying direction of pixel material drops and the electrostatic attraction of fine dust, etc., by providing the apparatus with an electrifying electrode for imparting charges to these pixel material drops, deflecting electrodes for deflecting the flying direction of the pixel material drops and a recovering means for recovering the pixel material drops. SOLUTION: The pixel material drops to which the charges are imparted by the electrifying electrode 3 are deflected in the flying route according to an electrification level by one set of the deflecting electrodes 4 and the non- charged pixel material drops DIN are adhered to the desired position of a transparent substrate 5. The charged pixel material drops DIC are recovered into a gutter 6. In this case, the pixel material drops of respective colors adhered in prescribed arrangement order to the many blocks formed by a black matrix have no charges. Even if, therefore, the transparent substrate is an insulator, the accumulation of the charges according to the adhesion of the pixel material drops does not arise in the respective blocks. Then, the distortion of the flying direction of the subsequent pixel material drops and the electrostatic attraction of the fine dust, etc., in the respective blocks do not arise.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color filter manufacturing apparatus and manufacturing method.

[0002]

2. Description of the Related Art An electrostatic deflection type ink jet method for deflecting the flight direction of charged pixel material droplets used in the manufacture of a color filter is disclosed in, for example, Japanese Patent Application Laid-Open No. 2-106354. As described above, the charged pixel material droplets to which electric charges are applied are attached to a transparent substrate such as glass, and the uncharged pixel material droplets to which electric charges are not applied are collected by a gutter to form pixels. At this time, the charged pixel material droplets are subjected to a Coulomb force in the direction orthogonal to the flight direction in the electrostatic field of the deflection electrode, and adhere to a predetermined position on the transparent substrate.

[0003]

By the way, a transparent substrate,
For example, since glass is an insulator, electric charges are accumulated in a pixel portion as the charged pixel material droplets are attached, and the pixel portion becomes high in potential. Because of this high potential,
The subsequent flight of the charged pixel material droplets may be distorted or electrostatically adsorbed to fine dust or dust, which may cause deterioration of the image quality of the manufactured color filter.

The present invention has been made in view of the above points, and a manufacturing apparatus and a manufacturing method of a color filter which does not distort the flight direction of a charged pixel material droplet or electrostatically adsorb fine dust or dust. The purpose is to provide a method.

[0005]

According to the device of the present invention, in order to achieve the above object, a charging electrode for imparting a charge to a pixel material droplet, a deflection electrode for deflecting the flight direction of the pixel material droplet, and the pixel material. A device for manufacturing a color filter, comprising: a collecting means for collecting drops, wherein the pixel material drops are adhered onto a transparent substrate, wherein the collecting means collects the charged pixel material drops to which the charging electrodes have given a charge. I did.

Further, according to the apparatus of the present invention, in order to achieve the above object, a charging electrode for imparting electric charge to a pixel material droplet, a deflection electrode for deflecting the flight direction of the pixel material droplet, and the pixel material droplet are collected. What is claimed is: 1. A color filter manufacturing apparatus comprising a collecting means, wherein the pixel material droplets are attached to each of a large number of partitions formed by the partitioning means on a transparent substrate, wherein the partitioning means is made of a conductive material and has a specific potential. And depositing a drop of charged pixel material on the transparent substrate,
The recovery means is configured to recover the non-charged pixel material droplets.

Further, according to the method of the present invention, there is provided a method of manufacturing a color filter for depositing pixel material droplets on a transparent substrate and collecting the pixel material droplets, which is a non-charged pixel material droplet that does not give electric charge Adhered onto the transparent substrate,
The configuration is such that the charged pixel material droplets to which electric charge is applied are collected. Further, according to the method of the present invention, a method for manufacturing a color filter, in which the pixel material droplets are attached to each of the plurality of partitions formed by the partition means on the transparent substrate, and the pixel material drops are collected, The partition means is made of a conductive material and is maintained at a specific potential, the charged pixel material droplets are attached to the transparent substrate, and the uncharged pixel material droplets are collected.

In the color filter manufacturing apparatus of the first aspect and the method of the third aspect, the charged pixel material droplets are collected by the collecting means, and the uncharged pixel material droplets are deposited on the transparent substrate.
On the other hand, in the second color filter manufacturing apparatus and the fourth method, the non-charged pixel material droplets are collected by the collection means, and the charged pixel material droplets are attached to the transparent substrate.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a color filter manufacturing apparatus and manufacturing method according to the present invention will be described below with reference to FIGS.
It will be described in detail based on. FIG. 1 is a schematic diagram showing a configuration according to a first embodiment of a color filter manufacturing apparatus of the present invention based on an inkjet method.

The piezoelectric element 1 vibrates the ejection nozzle 2 to divide the pixel material that is continuously ejected into droplets of pixel material. The charging electrode 3 imparts a predetermined charge to the passing pixel material droplet with a pulse voltage applied based on the print information signal. On the other hand, the pixel material droplets charged by the charging electrode 3 have their flight paths deflected according to the charging level by the pair of deflection electrodes 4, and the non-charged pixel material droplet DIN becomes the transparent substrate 5.
To the desired position. Also, charged pixel material droplets DIC
Are collected in the gutter 6.

Here, in FIG. 1, reference numeral 7 is a black matrix, which is integrally formed on the transparent substrate 5 to form a large number of sections which become pixels. However, since FIG. 1 is a schematic diagram, the black matrix 7 is shown. Does not match the actual shape. In the above manufacturing apparatus, pixel material droplets of red, green, and blue are ejected from respective ejection nozzles 2, and non-charged pixel material droplets DIN are formed on a large number of sections formed by the black matrix 7 on the transparent substrate 5. Are adhered in a predetermined arrangement order, subjected to various treatments such as temporary curing and main curing to form pixels, and then a color filter is manufactured through a process of forming a protective film, a transparent electrode and the like.

The transparent substrate 5 is driven based on a predetermined drive signal based on a color pattern in order to deposit the non-charged pixel material droplets DIN in a predetermined arrangement order on a large number of sections formed by the black matrix 7. It may be moved in the two-dimensional direction by the driving means. At this time, in the method of manufacturing the color filter of the present embodiment, the non-charged pixel material droplets DIN that do not give electric charges are attached to the transparent substrate 5, and the electric charge is given to deflect the flight direction of charged pixel material material droplets DIC. Are collected with a gutter 6.

As described above, the pixel material droplets of each color that adhere to the large number of sections formed by the black matrix 7 in the predetermined arrangement order have no electric charge. Therefore, in each section, even if the transparent substrate 5 is an insulator such as glass, electric charges do not accumulate due to the attachment of the pixel material droplets. Therefore, in each section, the flight direction of subsequent pixel material droplets is not distorted, and fine dust or dust is not electrostatically adsorbed, so that the image quality of the manufactured color filter is dramatically improved. Further, this embodiment is a method that can be adopted even when the partitioning means is made of a resin or the like having no conductivity.

Next, the construction of the second embodiment of the color filter manufacturing apparatus of the present invention will be explained based on the schematic diagram shown in FIG. The manufacturing apparatus shown in FIG. 2 is similar in configuration to the manufacturing apparatus shown in FIG. Therefore, in FIG.
The same components as those of the manufacturing apparatus shown in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted in the following description.

The color filter manufacturing apparatus shown in FIG.
A piezoelectric element 1, a discharge nozzle 2, a charging electrode 3, a set of deflection electrodes 4, and a gutter 10 are provided, and charged pixel material droplets are formed at desired positions in a large number of sections formed by a black matrix 7 on a transparent substrate 5. A DIC is attached and a color filter is manufactured in the same manner as in the above embodiment. At this time, in the method of manufacturing the color filter of the present embodiment, when the charged pixel material droplet DIC adheres to a desired section of the transparent substrate 5 and comes into contact with the black matrix 7 made of a conductive material and grounded, The electric charge is released and becomes in an uncharged state.
In this configuration, the uncharged pixel material drop DIN is guttered 10
To collect.

As described above, also in the apparatus and method according to the present embodiment, the charged pixel material droplets DIC of the respective colors attached to the sections formed by the black matrix 7 in a predetermined arrangement order are formed by the transparent substrate 5, for example, Even with an insulator such as glass, electric charges flow through the black matrix 7, and the electric charges are not accumulated in each section due to the attachment of the charged pixel material droplets DIC. Therefore, in each section, the flight direction of the subsequent charged pixel material droplets DIC is not distorted, and minute dust or dust is not electrostatically adsorbed, so that the image quality of the manufactured color filter is dramatically improved. .

In this embodiment, the charged pixel material droplet D is set by setting the charge amount applied to the pixel material droplet in multiple stages.
A plurality of IC flight directions can be selected, and correct drawing can be performed even if the ejection nozzles 2 are provided at intervals wider than the minimum interval of each section. In the present embodiment, the black matrix 7 is grounded, but since the charged state of the black matrix 7 may be stabilized, basically any potential may be used as long as it is maintained at the specific DC potential. Good.

[0018]

As is apparent from the above description, according to the present invention, a color filter manufacturing apparatus which does not distort the flight direction of a charged pixel material droplet or electrostatically adsorb fine dust or dust. And the manufacturing method is provided, and the color filter having excellent image quality can be manufactured.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a first embodiment of a manufacturing apparatus to which a color filter manufacturing method of the present invention is applied.

FIG. 2 is a schematic configuration diagram showing a second embodiment of a manufacturing apparatus to which the method for manufacturing a color filter of the present invention is applied.

[Explanation of symbols]

 1 Piezoelectric Element 2 Ejection Nozzle 3 Charging Electrode 4 Deflection Electrode 5 Transparent Substrate 6 Gutter 7 Black Matrix 10 Gutter DIC Charged Pixel Material Drop DIN Uncharged Pixel Material Drop

Claims (4)

[Claims] 1. A charging electrode for imparting a charge to a droplet of pixel material,
A color filter manufacturing apparatus, comprising: a deflection electrode for deflecting the flight direction of the pixel material droplets; and a recovery means for recovering the pixel material droplets, wherein the color filter adheres the pixel material droplets onto a transparent substrate. An apparatus for producing a color filter, characterized in that a charged electrode collects a charged pixel material droplet to which an electric charge is applied. 2. A charging electrode for imparting a charge to a droplet of pixel material,
A color filter that includes a deflection electrode that deflects the flight direction of the pixel material droplets and a collecting unit that collects the pixel material droplets, and that attaches the pixel material droplets to each of a plurality of partitions formed by partitioning means on the transparent substrate. The manufacturing apparatus of claim 1, wherein the partition means is made of a conductive material and is held at a specific potential, the charged pixel material droplets are adhered onto the transparent substrate, and the recovery means collects the uncharged pixel material droplets. An apparatus for manufacturing a color filter, characterized by: 3. A method of manufacturing a color filter in which a pixel material droplet is adhered onto a transparent substrate and the pixel material droplet is collected, wherein an uncharged pixel material droplet that does not apply an electric charge is adhered onto the transparent substrate. A method for manufacturing a color filter, comprising collecting charged pixel material droplets to which electric charges have been applied. 4. A method of manufacturing a color filter, wherein a pixel material droplet is attached to each of a large number of partitions formed by partition means on a transparent substrate, and the pixel material droplet is recovered. A method of manufacturing a color filter, which comprises a conductive material and holds it at a specific potential, deposits charged pixel material droplets on the transparent substrate, and collects uncharged pixel material droplets.