JP2008176091A - Method for manufacturing color filter and method for manufacturing electro-optical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a color filter, in which the number of manufacturing steps is reduced to improve the productivity of the color filter, and to provide a method for manufacturing an electro-optical apparatus. <P>SOLUTION: The method for manufacturing the color filter comprises the steps of: forming a light shielding layer 23 on the discharge surface 15a of a color filter substrate 15; forming a plurality of divided pixel areas S2 on the light shielding layer 23; discharging a liquid droplet D1 for forming a liquid-repellent layer to each of green color pixel areas SG and drying the discharged liquid droplet to form a transparent and colorless liquid-repellent layer 25; and discharging a liquid droplet D2 for forming a filter to the green color pixel area SG having the liquid-repellent layer 25 to form a green color filter layer CFG. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a color filter manufacturing method and an electro-optical device manufacturing method.

In the liquid crystal display device, a color filter is provided in each of a plurality of pixel regions, and a full color image is displayed by transmitting light of a specific wavelength. Since the liquid crystal display device absorbs part of the incident light into the color filter, the intensity of the emitted colored light becomes weaker than the intensity of the incident light,
It was difficult to obtain a bright screen. In particular, the reflective / transmissive liquid crystal display device, when performing reflective display, transmits light incident from the display surface to the color filter once, reflects it by the reflective member on the back surface, and then transmits it again to the color filter. Let it emit. As a result, the light incident from the display surface is transmitted twice through the color filter, further reducing the brightness of the display image.

Therefore, in the conventional liquid crystal display device, proposals have been made to improve the brightness of the display image. In Patent Document 1, an opening is provided in a part of a color filter, and colored light through the color filter and non-colored light through the opening are emitted from one pixel region. According to this,
Since the non-colored light through the opening increases the intensity of the visible region, the luminance can be improved for each of the pixel regions. Furthermore, Patent Documents 2 to 5 optimize the position, size, and quantity of the openings for each color pixel area, respectively, and enable improvement in luminance related to the direction of incident light, thereby improving contrast and color reproducibility. I am letting.
Japanese Patent Laid-Open No. 11-183892 JP 11-72779 A JP-A-11-72780 JP-A-11-109331 Japanese Patent Laid-Open No. 11-183891

When the above-described opening is formed in the color filter, patterning using a photolithography technique or an etching technique is generally required. Such patterning requires a step of forming a mask corresponding to the opening and a step of removing the mask after forming the opening.
There has been a problem that the productivity of the color filter, and thus the productivity of the liquid crystal display device, is significantly impaired.

The present invention has been made to solve the above-described problems, and an object of the present invention is to reduce the number of steps for forming a pattern and improve the productivity of the color filter and the electro-optical device. It is to provide a manufacturing method.

The color filter manufacturing method of the present invention includes a step of forming a partition on one surface of a substrate to form a plurality of pixel regions partitioned by the partition, and a liquid repellent material is applied to at least one of the plurality of pixel regions. A step of discharging the first droplet including the liquid, and drying the landed first droplet to form a light-repellent liquid-repellent layer; and a second including a color filter material in the plurality of pixel regions. And a step of drying the landed second droplet to form a color filter layer, and among the plurality of pixel regions, the pixel region having the liquid repellent layer comprises: A color filter layer is formed on a part of the pixel region corresponding to the position of the liquid repellent layer.

According to the color filter manufacturing method of the present invention, the color filter layer can be formed at a position in the pixel region corresponding to the discharge position of the first droplet. Therefore, the color filter layer can be formed only in a desired region in the pixel region without using a photolithography technique or an etching technique. That is, a region that emits incident light as non-colored light (hereinafter simply referred to as a non-colored region) can be formed in a desired region in the pixel region. Therefore, the number of color filter manufacturing steps can be reduced, and the productivity of the color filter can be improved.

In this color filter manufacturing method, the first liquid droplet is ejected to a part of the pixel region to form the liquid repellent layer on the part, and the pixel region having the liquid repellent layer has the The color filter layer may be formed in the pixel region excluding the part by discharging a second droplet.

According to this color filter manufacturing method, the liquid repellent layer region can be made into a non-colored region. Therefore, the non-colored region can be formed with higher accuracy.
In this color filter manufacturing method, the liquid droplets are formed on the entire pixel region by ejecting the first liquid droplets on the entire pixel region, and the pixel region having the liquid repellent layer has the The color filter layer may be formed in a region excluding a corner portion of the pixel region by discharging a second droplet.

According to this color filter manufacturing method, in order to form a liquid repellent layer over the entire pixel region,
The first droplet can be discharged over the entire pixel region, and the allowable range can be expanded with respect to the discharge accuracy of the first droplet.

The color filter manufacturing method may include a step of imparting liquid repellency for repelling the second droplet to the surface of the partition wall before discharging the first droplet to the pixel region. Good.
According to this color filter manufacturing method, the leakage of the second droplet can be prevented,
A color filter layer can be more reliably formed in a desired region of the pixel region.

In this color filter manufacturing method, the substrate may be a glass substrate, and the liquid repellent material may be a silane coupling agent.
According to this color filter manufacturing method, the liquid repellent layer can be formed by the silane coupling agent, and sufficient adhesion can be secured between the liquid repellent layer and the substrate. Therefore, a non-colored region can be formed with higher positional accuracy.

The electro-optical device manufacturing method of the present invention is a method for manufacturing an electro-optical device having a color filter on one surface of a substrate, and the color filter is manufactured by the above-described color filter manufacturing method.

According to the method for manufacturing an electro-optical device of the present invention, the number of manufacturing steps of the electro-optical device can be reduced, and as a result, the productivity of the electro-optical device can be improved.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, a liquid crystal display device as an electro-optical device will be described. 1 is a perspective view showing the entire liquid crystal display device, FIG. 2 is a perspective view showing a color filter substrate provided in the liquid crystal display device, and FIGS.
) Are a plan view and a cross-sectional view showing a pixel region, respectively.

In FIG. 1, the liquid crystal display device 10 includes a backlight 11 and a liquid crystal panel 12.
The backlight 11 irradiates the entire surface of the liquid crystal panel 12 with light emitted from the light source 13.
The liquid crystal panel 12 includes an element substrate 14 and a color filter substrate 15, and these element substrates 1
4 and the color filter substrate 15 are bonded together by a rectangular frame-shaped sealing material 16, and the liquid crystal LC is sealed in the gap. The liquid crystal LC modulates the light from the backlight 11 and displays a desired image on the upper surface of the color filter substrate 15.

The element substrate 14 is a square plate-like non-alkali glass substrate, and a plurality of scanning lines Lx extending in one direction have a predetermined interval on the upper surface in FIG. 1 (hereinafter simply referred to as an element formation surface 14a). Formed. Each scanning line Lx is electrically connected to a scanning line driving circuit 17 disposed at one end of the element substrate 14. The scanning line driving circuit 17 includes a plurality of scanning lines L
A predetermined scanning line Lx is selectively driven from x at a predetermined timing, and a scanning signal is output to the scanning line Lx.

A plurality of data lines Ly extending in the other direction orthogonal to the scanning lines Lx are formed on the element formation surface 14a with a predetermined interval. Each data line Ly is electrically connected to a data line driving circuit 18 disposed at one end of the element substrate 14. The data line driving circuit 18
A data signal based on the display data is generated, and the data signal is output to the corresponding data line Ly at a predetermined timing.

Here, the direction along the scanning line Lx is referred to as the X direction, and the direction along the data line Ly is referred to as the Y direction.
On the element formation surface 14a, a plurality of element regions S1 are formed that are partitioned in a matrix by the scanning lines Lx and the data lines Ly. In each element region S1, a control element (not shown) made of a TFT or the like, a pixel electrode P1 made of a transparent conductive material such as ITO, and the like are formed. The control elements in the element region S1 are turned on only during the selection period when the scanning line driving circuit 17 sequentially selects the scanning lines Lx one by one based on line sequential scanning. When the control element in the element region S1 is turned on, the data signal output from the data line driving circuit 18 is output to the pixel electrode P1 via the data line Ly and the control element.

An alignment film 19 that is common over the entire element formation surface 14a is stacked above each scanning line Lx, each data line Ly, and each element region S1. The alignment film 19 is a thin film made of polyimide or the like subjected to an alignment process such as a rubbing process, and defines the alignment direction of liquid crystal molecules in the vicinity to a predetermined direction.

An optical substrate 21 made of a polarizing plate, a retardation plate, or the like is bonded to the lower surface of the element substrate 14. The optical substrate 21 has a transmission axis in a predetermined direction, and allows light from the backlight 11 to be transmitted toward the liquid crystal LC.

The color filter substrate 15 is a square plate-like non-alkali glass substrate, and a polarizing plate 22 is bonded to the upper surface in FIG. The polarizing plate 22 has a transmission axis in a predetermined direction, and allows light from the liquid crystal LC to be transmitted upward of the liquid crystal panel 12.

In FIG. 2, a light shielding layer 23 as a partition is formed on the upper surface of the color filter substrate 15 (the lower surface in FIG. 1; hereinafter simply referred to as the ejection surface 15a). The light shielding layer 23 is formed of an acrylic photosensitive resin containing a light shielding material such as chromium or carbon black, and shields transmitted light from the liquid crystal LC. The surface of the light shielding layer 23 has a fluorine-based functional group (for example, a perfluoro group) and has liquid repellency for repelling liquid droplets. The light shielding layer 23 is
A plurality of pixel regions S2 which are formed in a lattice shape facing the scanning lines Lx and the data lines Ly and are surrounded by the light shielding layer 23 are partitioned and formed over the entire ejection surface 15a. That is, the light shielding layer 2
Reference numeral 3 denotes a plurality of pixel regions S facing each of the plurality of device regions S1 formed on the device substrate 14.
2 is formed over the entire discharge surface 15a.

The plurality of pixel regions S2 include a plurality of red pixel regions SR arranged along the Y direction, a plurality of green pixel regions SG arranged along the Y direction, and a plurality arranged along the Y direction. And a blue pixel region SB.

In FIG. 3, the red pixel region SR, the green pixel region SG, and the blue pixel region SB include
A color filter layer that transmits light of a corresponding color, that is, a red filter layer CFR that transmits red light, a green filter layer CFG that transmits green light, and a blue filter layer CFB that transmits blue light, respectively. Is formed.

Each color filter layer CFR, CFG, CFB is formed by using an inkjet method. That is, each color filter layer CFR, CFG, CFB is an ink in which a color filter material such as an inorganic pigment or an organic pigment for each color is dispersed in the corresponding pixel region S2 (hereinafter simply referred to as filter ink). ) As droplets, and the landed droplets are dried.

In the green pixel region SG, a pair of substantially liquid-repellent layers 25 is formed in a region excluding the green filter layer CFG as viewed from above. The liquid repellent layer 25 is a light-transmitting thin film, and forms a non-colored region that emits incident light as non-colored light inside the green pixel region SG. The liquid repellent layer 25 is a thin film made of a liquid repellent material and has liquid repellency with respect to the filter ink. Here, the liquid repellency means, for example, the property that the surface free energy is lowered to about 20 mJ / m ² to reduce the affinity with the material having polarity, or the contact angle of the filter ink is 50 °. It refers to the properties described above.

As the liquid repellent material, a fluorocarbon silane coupling agent (organosilicon compound), a liquid repellent polymer compound, or the like can be used. As the fluorocarbon group, a perfluoroalkyl group, a fluoroalkyl group in which part of hydrogen of the alkyl group is substituted with fluorine, or a group composed of perfluoropolyether can be used. Examples of the liquid repellent polymer compound include oligomers or polymers containing fluorine atoms in the molecule (for example, polytetrafluoroethylene,
Ethylene-tetrafluoroethylene copolymer, polyvinylidene fluoride, etc.) can be used. The silane coupling agent is preferably one in which the terminal functional group of the molecule is selectively chemically adsorbed on the constituent atoms of the ejection surface 15a. For example, the silane coupling agent preferably has a silanol group at the terminal functional group of the molecule and chemically adsorbs to the hydroxyl group of the ejection surface 15a. According to this, the adhesion between the liquid repellent layer 25 and the green pixel region SG can be improved.

Each liquid repellent layer 25 is formed by using an ink jet method. That is, each liquid repellent layer 25 is an ink containing the above liquid repellent material (hereinafter simply referred to as a liquid repellent layer ink).
) In the green pixel region SG as droplets, and the landed droplets are dried or dried and fired.

A common overcoat layer 26 is disposed on the upper side of each color filter layer CFR, CFG, CFB.
A common counter electrode P2 and a common alignment film 27 are stacked. The overcoat layer 26 is a thin film made of a colorless and transparent acrylic resin or epoxy resin, and includes each pixel region S.
2 is protected and its upper side is flattened. The counter electrode P2 is a thin film made of a transparent conductive material such as ITO, and receives a predetermined common potential and supplies a potential corresponding to a data signal between the counter electrode P2 and the pixel electrode P1. The alignment film 27 is a thin film made of polyimide or the like that has been subjected to an alignment process such as a rubbing process, and defines the alignment direction of liquid crystal molecules in the vicinity to a predetermined direction.

When a data signal is input to the pixel electrode P1, the liquid crystal molecules are separated from the pixel electrode P1 and the counter electrode P.
The orientation state is changed in accordance with the potential difference between the incident light and the incident light incident from the backlight 11 is passed or shielded. Each pixel region S2 transmits light having a specific wavelength corresponding to light transmitted through the liquid crystal LC, and displays a full-color image on the color filter substrate 15.

At this time, the green pixel region SG emits green light via the green filter layer CFG and non-colored light via the liquid repellent layer 25. Non-colored light via the liquid repellent layer 25 increases the intensity of the emitted light over the entire visible region. The green light exhibits a broad light emission over almost the entire visible region, that is, it emits light also in the red light region and the blue light region. for that reason,
The transmission / shielding of non-colored light using the green pixel region SG increases the luminance without causing a large change in color balance as seen from the entire liquid crystal panel 12.

Next, a method for manufacturing the color filter substrate 15 will be described. 4 (a), (b), (
c) and (d) are process diagrams showing the manufacturing process of the color filter substrate 15, respectively.
First, in FIG. 4A, the light shielding layer 23 is formed on the ejection surface 15 a of the color filter substrate 15. As a method for forming the light shielding layer 23, for example, a photolithography technique can be used. That is, an acrylic photosensitive resin containing a light shielding material is applied to substantially the entire discharge surface 15a to form a coating film having a thickness of 2 to 3 (μm), and the coating film is exposed and developed to form each pixel region. The light shielding layer 23 having S2 is formed. Alternatively, the ejection surface 1 of the color filter substrate 15
A light shielding film made of a light shielding material such as chromium or chromium oxide is formed on 5a, and the light shielding film is etched to form an opening corresponding to each pixel region S2. Then, after a photosensitive resin coating film is laminated on the light shielding film, the coating film is exposed and developed to form a light shielding layer 23 having a two-layer structure including the light shielding film and the coating film.

Next, a liquid repelling treatment is performed to impart liquid repellency to the surface of the light shielding layer 23. As the liquid repellent treatment, for example, a surface treatment using fluorine-based plasma can be used. That is, the entire discharge surface 15a is exposed to the atmosphere of plasma PS using a fluorocarbon gas (for example, CF ₄ , C ₂ F ₆ , C ₄ F _8, etc.) to replace the fluorocarbon group on the surface of the light shielding layer 23. Giving liquid repellency.

In FIG. 4B, when liquid repellency is imparted to the surface of the light shielding layer 23, the liquid repellent layer 25 is formed in the green pixel region SG using an ink jet method. That is, a liquid repellent layer ink is supplied to a known ink jet apparatus, and a plurality of droplets having a particle size of several tens (μm) (hereinafter simply referred to as a liquid repellent layer droplet D1 as a first droplet). To form. Then, each liquid repellent layer droplet D1 is discharged from the inkjet device into the corresponding green pixel region SG, and the entire color filter substrate 15 is heated by an oven or the like to land on the green pixel region SG. The liquid layer droplet D1 is dried. Thereby, the liquid repellent layer 25 is formed in each of the green pixel regions SG.

As the liquid repellent layer ink, for example, a liquid material in which a fluorocarbon silane coupling agent is dissolved in a solvent such as xylene or toluene can be used, and any liquid material that exhibits liquid repellency after drying may be used. The ink for the liquid repellent layer preferably has a viscosity of 1 to 50 (mPas) and 1 to 20 (mPa) in order to obtain ejection stability of the liquid repellent layer droplet D1.
What was adjusted to is more preferable.

In FIG. 4C, when the liquid repellent layer 25 is formed in each of the green pixel regions SG, each color filter layer CFR, CF corresponding to each of the pixel regions S2 is formed using an inkjet method.
G and CFB are formed. That is, a filter ink is supplied to a known ink jet apparatus, and a plurality of droplets having a particle size of several tens (μm) (hereinafter simply referred to as filter droplets D as second droplets).
Two. ). Then, each filter droplet D2 is discharged from the inkjet device into the corresponding pixel region S2.

The filter droplets D2 that have landed inside each pixel region S2 correspond to the corresponding pixel region S.
Unite inside the two. At this time, since the surface of the light shielding layer 23 and the surface of the liquid repellent layer 25 each have liquid repellency, the filter ink is separated from the surface of the light shielding layer 23 and the surface of the liquid repellent layer 25 by the surface tension. Stable in a raised state.

When the filter droplet D2 is ejected to each pixel region S2, the entire color filter substrate 15 is heated by an oven or the like, and the filter ink is dried. At this time, since the surface of the light shielding layer 23 and the surface of the liquid repellent layer 25 have liquid repellency, the filter ink is inside the pixel region S2 and excludes the liquid repellent layer 25. Dry to reach the area. As a result, each color filter layer CFR, CFG, CFB corresponding to each of the pixel regions S2.
Form.

Examples of the filter ink include a resin in which an inorganic pigment is dispersed in a polyurethane oligomer, a low boiling point solvent such as cyclohexanone and butyl acetate, a glycol alkyl ether such as butyl carbitol, or a glycol alkyl ether acetate such as butyl carbitol acetate. Or a high-boiling solvent such as dibasic acid esters such as dimethyl succinate and a liquid added with a dispersion medium such as a nonionic surfactant can be used.
Note that the viscosity of the filter ink is 1 in order to obtain the ejection stability of the filter droplet D2.
It is preferable that it is -50 (mPa), and what was adjusted to 1-20 (mPas) is more preferable.

In FIG. 4D, when each color filter layer CFR, CFG, CFB is formed, an overcoat layer 26 is formed. The formation of the overcoat layer has a role of relieving unevenness around the portion where the filter layer for each color is not formed by the liquid repellent layer. By performing oxygen plasma treatment or the like before the formation of the overcoat layer, the surfaces of the light shielding layer and the liquid repellent layer can be made lyophilic, and the overcoat layer can be uniformly formed without uneven coating. Examples of the method for forming the overcoat layer 26 include spin coating, roll coating, ripping,
A coating method such as an inkjet method can be used. That is, a colorless and transparent resin material is applied to substantially the entire surface of each color filter layer CFR, CFG, CFB, the light shielding layer 23 and the liquid repellent layer 25 to form a coating film, and the coating film is dried. Form.

Then, the counter electrode P2 and the alignment film 27 are laminated on the upper side of the overcoat layer 26, whereby the color filter substrate 15 having the liquid repellent layer 25 is formed.
Next, effects of the present embodiment configured as described above will be described below.

(1) In the above embodiment, the light shielding layer 23 is formed on the ejection surface 15a of the color filter substrate 15 to form a plurality of pixel regions S2 partitioned by the light shielding layer 23, and liquid repellent is provided in each of the green pixel regions SG. A colorless and transparent liquid repellent layer 25 was formed by discharging the layer droplet D1. Then, a filter droplet D2 was ejected to the green pixel region SG having the liquid repellent layer 25 to form a green filter layer CFG.

Therefore, the green filter layer CFG is formed inside the green pixel region SG excluding the liquid repellent layer 25.
The green filter layer CFG can be formed only in a desired region in the green pixel region SG. That is, a non-colored region can be formed only in a desired region in the green pixel region SG without using a photolithography technique or an etching technique. As a result, the number of manufacturing steps of the color filter substrate 15 can be reduced, and as a result, the productivity of the color filter substrate 15 and the productivity of the liquid crystal display device 10 can be improved.

(2) According to the above embodiment, the liquid repellent treatment is performed before the liquid repellent layer droplet D1 is discharged to the green pixel region SG, and the surface of the light shielding layer 23 is given liquid repellency. Therefore, the filter droplet D2
The green filter layer CFG can be more reliably formed in the pixel region S2 excluding the liquid repellent layer 25.

(3) According to the embodiment, since the color filter substrate 15 is a glass substrate and the liquid repellent material is a silane coupling agent, sufficient adhesion is ensured between the liquid repellent layer 25 and the ejection surface 15a. can do. Therefore, a non-colored region can be formed with higher positional accuracy.

(Second embodiment)
Hereinafter, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, the shape of the liquid repellent layer 25 of the first embodiment is changed. Therefore, in the following, the changes will be described in detail.

In FIG. 5, the green pixel region SG includes a liquid repellent layer 2 over the entire green pixel region SG.
5 is formed, and a substantially oval green filter layer CFG is formed above the liquid repellent layer 25.

The liquid repellent layer 25 is a colorless and transparent thin film as in the first embodiment, and is a green pixel region SG.
Non-colored regions are formed at the four corners (corners). The liquid repellent layer 25 is a thin film made of a liquid repellent material, and is formed using an ink jet method. That is, each liquid repellent layer 25 ejects the liquid repellent layer droplet D1 to the entire inside of the green pixel region SG and landed on the liquid repellent layer droplet D1.
It is formed by drying.

The green filter layer CFG is formed using an inkjet method, as in the first embodiment. That is, the green filter layer CFG is formed by discharging the filter droplet D2 into the green pixel region SG and drying the filter droplet D2 landed on the liquid repellent layer 25. The filter droplet D2 that has landed on the upper side of the liquid repellent layer 25 is the liquid repellent layer 2
Since the liquid is repelled by 5 and united, the surface tension makes it substantially oval and stable.

According to the second embodiment, since the liquid repellent layer 25 can be formed on the entire green pixel region SG, the liquid repellent layer droplet D1 can be ejected on the entire green pixel region SG. With regard to the ejection accuracy of the layer droplet D1, the permissible range can be expanded.

In addition, you may change the said embodiment as follows.
In the above embodiment, the liquid repellent layer 25 is formed only in the green pixel region SG. However, the present invention is not limited to this. For example, any structure may be used as long as it is formed in at least one of the red pixel region SR, the green pixel region SG, and the blue pixel region SB.

In the first embodiment, only two liquid repellent layers 25 are formed inside the green pixel region SG. For example, as shown in FIG. 6, four lyophobic layers 25 may be formed at positions in contact with the light shielding layer 23. That is, in the present invention, the shape and quantity of the liquid repellent layer 25 and the liquid repellent layer 2
The position is not limited to the position in the five pixel regions S2.

In the above embodiment, the light shielding layer 23 is made of an acrylic photosensitive resin containing a light shielding material, and the liquid repellent treatment is performed on the light shielding layer 23 to impart liquid repellency. For example, the light shielding layer 23 may be formed of a black photosensitive resin material such as hexafluoropolypropylene resin, and the constituent material of the light shielding layer 23 may have liquid repellency. According to this, the liquid repellent treatment process can be reduced, and the number of manufacturing processes of the color filter substrate 15 and, in turn, the number of manufacturing processes of the liquid crystal display device 10 can be reduced.

In the above embodiment, before discharging the liquid repellent layer droplet D1, the discharge surface 15a and the liquid repellent layer 2
5 may be configured to perform surface treatment for obtaining adhesion between the two. As the surface treatment, for example, a plasma treatment that exposes the entire surface of the discharge surface 15a in an oxygen plasma atmosphere, or the discharge surface 1
A treatment for substituting a polar group such as a hydroxyl group on the surface of the discharge surface 15a, such as an ultraviolet irradiation treatment for irradiating the entire surface of 5a with ultraviolet rays, can be used. According to this, the chemical adsorption force between the silane coupling agent and the discharge surface 15a can be improved.

In the above embodiment, the electro-optical device is embodied in the transmissive liquid crystal display device 10. For example, the electro-optical device may be embodied as a reflection / transmission type liquid crystal display device.
In the above embodiment, the electro-optical device is embodied in the liquid crystal display device 10. For example, the electro-optical device may be embodied as an electroluminescence display device.
Even in this configuration, the productivity of the electroluminescence display device can be improved.

In the above embodiment, the electro-optical device is embodied in the liquid crystal display device 10. However, the present invention is not limited to this, and the electro-optical device may be embodied as a field effect device (FED, SED, or the like) that emits a fluorescent material by electrons emitted from the electron-emitting device. Even in this configuration, the productivity of the field effect device can be improved.

The perspective view which shows a liquid crystal display device. The perspective view which shows a color filter board | substrate. (A), (b) is the top view and side sectional view which respectively show a pixel area. (A), (b), (c), (d) is process drawing which shows the manufacturing process of a liquid crystal display device, respectively. The top view which shows the pixel area | region of 2nd embodiment. The top view which shows the pixel area | region of the example of a change.

Explanation of symbols

D1 ... Liquid-repellent layer droplet as the first droplet, D2 ... Filter droplet as the second droplet,
S2: Pixel region, CFR: Red filter constituting the color filter, CFG ... Green filter constituting the color filter, CFB ... Blue filter constituting the color filter,
DESCRIPTION OF SYMBOLS 10 ... Liquid crystal display device as an electro-optical device, 15 ... Color filter substrate, 23 ... Light-shielding layer as a partition, 25 ... Liquid repellent layer.

Claims (6)

Forming a partition on one surface of the substrate and forming a plurality of pixel regions partitioned by the partition;
Discharging a first liquid droplet containing a liquid repellent material to at least one of the plurality of pixel regions, and drying the landed first liquid droplet to form a light-repellent liquid repellent layer; ,
Discharging a second droplet containing a color filter material to a plurality of the pixel regions, and drying the landed second droplet to form a color filter layer;
With
Among the plurality of pixel regions, the pixel region having the liquid-repellent layer forms a color filter layer in a part of the pixel region according to the position of the liquid-repellent layer. Production method. It is a manufacturing method of the color filter of Claim 1, Comprising:
Discharging the first droplet to a part in the pixel region, drying the landed first droplet to form the liquid repellent layer on the part,
Discharging the second droplet to the pixel region having the liquid repellent layer, drying the landed second droplet, and forming the color filter layer in the pixel region excluding the part. ,
A method for producing a color filter characterized by the above. It is a manufacturing method of the color filter of Claim 1, Comprising:
Discharging the first droplet over the entire pixel region, drying the landed first droplet to form the liquid repellent layer over the entire pixel region;
Discharging the second droplet to the pixel region having the liquid repellent layer to form the color filter layer in a region excluding a corner of the pixel region;
A method for producing a color filter characterized by the above. It is a manufacturing method of the color filter as described in any one of Claims 1-3,
Providing a liquid repellency for repelling the second droplet on the surface of the partition wall before discharging the first droplet to the pixel region;
A method for producing a color filter characterized by the above. It is a manufacturing method of the color filter as described in any one of Claims 1-4,
The substrate is a glass substrate,
The liquid repellent material is a silane coupling agent;
A method for producing a color filter characterized by the above. A method of manufacturing an electro-optical device having a color filter on one surface of a substrate,
Producing the color filter by the method for producing a color filter according to any one of claims 1 to 5,
A method for manufacturing an electro-optical device.

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