JP2002148422A - Filter, method for manufacturing the same, and optoelectronic device using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter which suppresses the color irregularity of a plurality of pixels formed on the substrate by a plurality of ink drops, respectively, and can be stably produced even when some errors are in the amount of a plurality of ink drops discharged from a plurality of nozzles of a recording head, and to provide a method for manufacturing the filter, and an optoelectronic device using the filter. SOLUTION: The method for manufacturing the filter consists of a measuring step to measure whether or not the amounts of ink drops discharged from a plurality of nozzles 91 are within the limits of a specified value, a plotting pattern generation step to generate a plotting pattern for forming a plurality of pixels P by using a plurality of normal nozzles 91 having the amounts of ink drops within the limits of the specified value, and a pixel formation step to form the plurality of pixels P on a substrate 13 by driving only the plurality of normal nozzles 91 on the basis of the plotting pattern.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for forming pixels on a substrate by ejecting ink droplets from a nozzle to a substrate by a recording head, a method of manufacturing the filter, and an electro-optical device using the filter. It is.

[0002]

2. Description of the Related Art With the recent development of the information industry, the demand for liquid crystal displays used for information terminals, mobile phones and the like is increasing. For example, the colorization of recent liquid crystal displays in mobile phones has been progressing, and the demand for color filters for liquid crystal displays has greatly increased. In order to respond to this demand, a technique has been used in which a recording head employing a conventionally used ink jet system ejects ink droplets onto a substrate to be a color filter and forms pixels formed of the ink droplets on the substrate. ing. The method of manufacturing a color filter for forming pixels on a substrate by using the inkjet method has a feature of being inexpensive.

Further, as a specific example of a method of manufacturing a color filter, for example, ink drops of colors corresponding to the three primary colors of R (red), G (green), and B (blue) are formed in a predetermined pattern, respectively. By landing on the substrate, pixels formed by the ink droplets are formed. A recording head that ejects ink droplets onto the substrate scans over the substrate when forming pixels.

FIG. 12 is a plan view showing an example of how a color filter is manufactured by a conventional color filter manufacturing method.

FIG. 13 is a plan view showing an example of a state in which the recording head 7 of FIG. 12 and its periphery are enlarged.
FIG. 14A is a cross-sectional view taken along the line AA ′ showing an example of a state in which the ink droplet I lands on the substrate 13 in FIG. 13, and FIG.
FIG. 15 is a cross-sectional view taken along the line AA ′ showing an example of a state in which ink droplets on the substrate 13 in FIG. 14A are dried.

When the print head 7 scans the substrate 13 as shown in FIG. 12, the nozzles 91 provided on the print head 7 shown in FIG. 13 for ejecting ink droplets overlap the pixels P to be formed. Ink droplets are ejected at the timing, and ejection is repeated in a portion where the pixels P are continuous. Therefore, a plurality of pixels P in the same row on the substrate in the head scanning direction HD of the recording head 7 are formed by ink droplets from the same nozzle N1 (91) in the recording head 7, respectively. Next, as shown in FIG. 12, the recording head 7 repeats the formation (drawing) of the pixel P in a portion where the position is shifted and a continuous pixel row is to be formed. In this way,
As shown in FIG. 14A, the recording head 7
An ink droplet I to be a pixel P is landed thereon. Then, as shown in FIG. 14B, the ink droplet I that has landed on the substrate 13 is dried to evaporate the solvent contained in the ink droplet and fix only the pigment component of the ink droplet.

[0007]

However, if the amount of the plurality of ink droplets ejected for each of the plurality of nozzles 91 in the recording head 7 shown in FIG.
As shown in FIG. 4B, the color of the pixel P varies depending on the thickness of the pigment film formed of the ink droplet I after drying. Such color unevenness of the pixel P is not visually recognized as the color unevenness of the pixel P if the error of the droplet amount of the ink droplet constituting the pixel P is within ± 2.5%. 5-1
Since it is 0%, there is a problem that the stripe-shaped pixel P is visually recognized as color unevenness.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a method for controlling a plurality of ink droplets ejected from a plurality of nozzles of a recording head by using the plurality of ink droplets. An object of the present invention is to provide a filter capable of stably producing a plurality of pixels formed on a substrate while suppressing color unevenness, a method of manufacturing the filter, and an electro-optical device using the filter.

[0009]

According to a first aspect of the present invention, a recording head having a plurality of nozzles for ejecting ink droplets discharges the ink droplets from the plurality of nozzles while scanning the ink droplets relative to a substrate. A method of manufacturing a filter by forming a plurality of pixels on the substrate by performing the method, wherein a droplet amount of the ink droplet ejected from the plurality of nozzles is within a specified value range. A measuring step of measuring whether or not the drawing is performed, and a drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of normal nozzles having a droplet amount of the ink droplet within the range of the specified value. And a first pixel forming step of driving only the plurality of normal nozzles based on the drawing pattern to form the plurality of pixels on the substrate. A method for producing a filter according to symptoms.

According to the configuration of the first aspect, in the measuring step, it is measured whether or not the amount of the ink droplet ejected from the nozzle is within a specified value range. Next, in a drawing pattern generation step, a drawing pattern for forming a plurality of pixels by a plurality of normal nozzles whose ink droplet amount is within a specified value range is generated. Next, in a pixel forming step, based on the drawing pattern, only a plurality of normal nozzles are driven to form a plurality of pixels on the substrate, respectively. With this configuration, the filter forms a plurality of pixels on the substrate using only a plurality of nozzles that discharge ink droplets of a normal amount. Therefore, color unevenness of the formed plurality of pixels is visually recognized. There can be none.

According to a second aspect of the present invention, in the configuration of the first aspect, the plurality of ink droplets which should be originally formed by the plurality of abnormal nozzles whose droplet amount is outside the specified value range A pixel, a complementary pattern generating step of generating a complementary pattern for forming the normal plurality of nozzles, and based on the complementary pattern, driving only the normal plurality of nozzles and driving the plurality of normal nozzles on the substrate. And forming another pixel.

According to the second aspect of the present invention, in addition to the operation of the first aspect, in the complementary pattern generating step, the plurality of abnormal nozzles whose ink droplet amount is outside the specified value range are originally used. A complementary pattern for forming a plurality of pixels to be formed by a plurality of normal nozzles is generated. Next, in another pixel forming step, based on the complementary pattern, only a plurality of normal nozzles are driven to form a plurality of pixels on the substrate, respectively.

[0013] The invention of claim 3 is claim 1 or claim 2.
In any one of the above configurations, the range of the prescribed value of the droplet amount of the ink droplet is a range of an error of ± 2.5% centering on the droplet amount of the ink droplet which should be originally. And

According to the third aspect of the present invention, similar to the operation of the first aspect or the second aspect, the filter is configured such that the amount of the ejected ink droplet is within a predetermined range. Since a plurality of pixels are formed on the substrate by only a plurality of nozzles, color unevenness of the formed pixels can be visually suppressed.

According to a fourth aspect of the present invention, there is provided the first to third aspects.
Wherein the plurality of pixels are arranged in a delta so that the pixels of the same color are not adjacent to each other.

According to a fifth aspect of the present invention, a recording head having a plurality of nozzles for discharging ink droplets discharges the ink droplets from the plurality of nozzles while scanning the substrate relative to the substrate, thereby discharging the ink droplets onto the substrate. A filter manufactured by a filter manufacturing method of manufacturing a filter by forming a plurality of pixels, wherein a droplet amount of the ink droplet ejected from the plurality of nozzles is within a specified value range. A measurement step of measuring whether or not, and a drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of normal nozzles in which the droplet amount of the ink droplet is within the range of the specified value. The plurality of pixels that should have been originally formed by the plurality of abnormal nozzles whose droplet amount is outside the range of the specified value, A complementary pattern generation step of generating a complementary pattern to form at serial plurality of nozzles, the first based on said drawing pattern, forming the plurality of pixels on the substrate by driving only normal the plurality of nozzles
Pixel forming step, based on the complementary pattern,
A second pixel forming step of forming only the plurality of pixels on the substrate by driving only the plurality of normal nozzles.

According to the configuration of the fifth aspect, in the measuring step, it is measured whether or not the amount of the ink droplet ejected from the nozzle is within a specified value range. Next, in a drawing pattern generation step, a drawing pattern for forming a plurality of pixels by a plurality of normal nozzles whose ink droplet amount is within a specified value range is generated. Next, in the complementary pattern generation step, a plurality of pixels that should have been formed by abnormal nozzles whose ink droplet amount is outside the specified value range are formed by normal nozzles. Generate a complementary pattern to perform Next, the first
In the pixel forming step, only a plurality of normal nozzles are driven based on the drawing pattern to form a plurality of pixels on the substrate. Finally, in the second pixel forming step, based on the complementary pattern, only a plurality of normal nozzles are driven to form a plurality of pixels on the substrate. With this configuration, the filter forms a plurality of pixels on the substrate using only a plurality of nozzles that discharge ink droplets of a normal amount. Therefore, color unevenness of the formed plurality of pixels is visually recognized. There can be none.

According to a sixth aspect of the present invention, a recording head having a plurality of nozzles for discharging ink droplets discharges the ink droplets from the plurality of nozzles while scanning the substrate relative to the substrate, thereby discharging the ink droplets onto the substrate. An electro-optical device using a filter manufactured by a filter manufacturing method for manufacturing a filter by forming a plurality of pixels,
A measuring step of measuring whether or not a droplet amount of the ink droplet ejected from the plurality of nozzles is within a prescribed value range; and a normal step in which the droplet amount of the ink droplet is within the prescribed value range. A drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of nozzles; and a plurality of abnormal nozzles in which the amount of the ink droplet is outside the range of the specified value. A complementary pattern generating step of generating a complementary pattern for forming the plurality of pixels that should have been formed by the normal plurality of nozzles; and based on the drawing pattern, only the normal plurality of nozzles. A first pixel forming step of driving to form the plurality of pixels on the substrate; and driving only the normal plurality of nozzles to the substrate based on the complementary pattern. An electro-optical device using a filter, characterized in that it is manufactured by the manufacturing method of the filter and a second pixel formation step of forming a serial plurality of pixels.

According to the configuration of the sixth aspect, in the measuring step, it is measured whether or not the amount of the ink droplet ejected from the nozzle is within a specified value range. Next, in a drawing pattern generation step, a drawing pattern for forming a plurality of pixels by a plurality of normal nozzles whose ink droplet amount is within the specified value range is generated. Next, in the complementary pattern generation step, a plurality of pixels that should have been formed by a plurality of abnormal nozzles whose droplet amount is outside the range of the specified value are formed by a plurality of normal nozzles. Generate a complementary pattern to perform Next, the first
In the pixel forming step, only a plurality of normal nozzles are driven based on the drawing pattern to form a plurality of pixels on the substrate. Finally, in the second pixel forming step, based on the complementary pattern, only a plurality of normal nozzles are driven to form a plurality of pixels on the substrate. With this configuration, the filter forms a plurality of pixels on the substrate using only a plurality of nozzles that discharge ink droplets of a normal amount. Therefore, color unevenness of the formed plurality of pixels is visually recognized. There can be none. An electro-optical device using such a filter can have high luminance and excellent response characteristics.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a substrate 13 on which filters 11 are arranged.
FIG. 2 is a plan view showing a configuration example of FIG.
FIG. 3 is a plan view showing a configuration example of a part of a filter 11 formed above.

The substrate 13 is a base material of the filter 11, and one side in the longitudinal direction is, for example, 470 mm, and the other side is, for example, 370 mm. The substrate 13 is a transparent substrate that has high mechanical transparency and high light transmittance. As the substrate 13, for example, a transparent glass substrate, an acrylic glass, a plastic substrate, a plastic film, and a surface-treated product thereof can be used.

The filter 11 has, for example, at least one
Pixels of a color, preferably a plurality of colors, are formed. That is, the filter 11 is, for example, a color filter in which pixels of a plurality of colors are formed. In the following description, the filter 11
Is called a color filter 11. As shown in FIG. 2, for example, a red pixel PR, a blue pixel PB, and a green pixel PG are formed in the color filter 11. In the following description, these pixels PR, PB, and PG are also collectively referred to as a pixel P.

The color filter 11 is, for example, a filter used for a liquid crystal display, and is of a delta type in which pixels PR, PB and PG are arranged in, for example, a delta shape, and pixels of the same color are not adjacent to each other. Needless to say, in the color filter 11, the pixels PR, PB, and PG may be arranged in a stripe type or a mosaic type. This delta type color filter 11
Is so called because all of the pixels PR, PB and PG formed on the surface of the substrate 13 are arranged in a delta shape. Delta type color filter 1
A liquid crystal display (not shown) adopting No. 1 is generally suitable for displaying a moving image.

FIG. 3 is a plan view showing an example of how a filter is manufactured by a filter manufacturing method according to a preferred embodiment of the present invention.

The paper surface of FIG. 3 shows the substrate 13, and the head 7 is provided at a certain distance from the substrate 13 in the direction perpendicular to the paper surface. This head 7 (recording head)
For example, 180 nozzles N <b> 1 to N <b> 180 (91) for ejecting ink droplets are provided on the surface facing the substrate 13. In the following description, as an example, 1
The description will be made assuming that 80 nozzles N1 to N180 are provided. Therefore, the head 7 is a recording head employing a so-called ink jet system. Further, the head 7 can scan relative to the substrate 13 in the head scanning direction HD.

Therefore, the head 7 discharges ink droplets to the substrate 13 while relatively scanning the substrate 13 in the head scanning direction HD, and forms a pixel PR composed of the ink droplets on the substrate 13. it can. Also, the recording head 7
The pixel PB can be moved in the pixel switching direction PD, and the pixel PB and the pixel PG can be formed on the substrate 13 similarly to the pixel PR.

The configuration example of the color filter 11 is as described above. Next, a configuration example of the manufacturing apparatus 2000 using the method of manufacturing the color filter 11 will be described with reference to FIGS.

FIG. 4 shows a configuration example of the manufacturing apparatus 2000.

The computer 34 is connected to the control panel 80. For the control panel 80, the first moving means 1
4 (linear motor), the second moving means 16 (linear motor) and a motor 44 for the θ axis are connected. Also,
Motors 62, 64, 6 related to the movement of the recording head 7
6 and 68 are connected to the control panel 80. The first moving means 14 and the θ-axis motor 44 are operated according to a command from the control panel 80, for example, the substrate 13 for producing a color filter.
Is moved in the Y-axis direction relative to the recording head 7 and indexed in the θ direction.

The second moving means 16 and the four motors 62,
64, 66, 68 operate according to a command from the control panel 80, for example, to move the recording head 7 to the substrate 1 on the table 46.
3 is controlled and moved. The operation of the robot 74 serving as a substrate supply / discharge unit can be controlled by a command from the computer 34.

Next, an example of the structure of the recording head 7 will be described with reference to FIGS.

The recording head 7 is, for example, a head using a piezo element (piezoelectric element). As shown in FIG. 5A, a plurality of nozzles 91 are formed on the ink ejection surface 20P of the main body 90. I have. Each of these nozzles 91 is provided with a piezo element PZT.

As shown in FIG. 5B, a piezo element PZT
Are arranged corresponding to the nozzles 91 and the ink chambers 93. FIG. 5C shows the relationship between the piezo element PZT and FIG.
5D and FIG. 5D.
As shown in FIG. 5F and FIG.
By expanding and contracting ZT in the direction of arrow Q, the ink is pressurized and a predetermined amount of ink droplet is ejected from the nozzle 91.

The recording head 7 shown in FIG.
The ink is supplied from the ink supply unit 97 to the ink chamber 93 shown in FIG. 5B. A thermometer 96 and a viscometer 95 are connected to the ink supply unit 97.
The thermometer 96 and the viscometer 95 measure the temperature and viscosity of the ink contained in the ink supply unit 97, and supply them to the ink management controller 98 as feedback signals S1 and S2 of the state of the ink.

The ink management controller 98 gives the temperature and viscosity of the ink to the computer 34 as control information based on the feedback signals S1 and S2 of the ink state. The computer 34 controls the control panel 8
A piezo element drive signal S3 is sent to the piezo element drive circuit 101 through “0”. Piezo element drive circuit 101
FIG. 5 is based on the piezo element drive signal S3.
By supplying an applied voltage Vh corresponding to the temperature and viscosity of the ink to the piezo element PZT in (B), a predetermined amount of ink droplets can be ejected from the nozzle 91 in accordance with the temperature and viscosity of the ink. it can.

Color filter 11 and its manufacturing apparatus 20
Reference numeral 00 denotes the above configuration. Next, an example of a method for manufacturing a color filter will be described with reference to FIGS.

FIG. 6 is a flowchart showing an example of a method for manufacturing a filter.

FIG. 7 is a block diagram showing a configuration example of the ink amount measurement system 100, and FIG. 8 shows an example of the weight of the ink droplet for each nozzle measured by the ink amount measurement system 100 of FIG. FIG.

FIGS. 10A to 10D and FIG.
(A) to FIG. 11 (D) show color filters 11 respectively.
It is sectional drawing which shows an example of the manufacturing process of. FIG.
In the description of FIGS. 10D and 11A to 11D, an example in which one pixel is formed on the substrate 13 by ink droplets from the nozzle N1 of the recording head 7 will be described as a representative.

Measurement step (ink amount measurement step) In measurement step ST1 of FIG. 6, the droplet amount (ink amount) of each ink droplet ejected from each nozzle of the recording head 7 is within a preset standard value range (ink amount). It is measured whether it is within the appropriate amount range). In the following description, the preset standard value is set to, for example, 10 ng. In addition, the range of the preset standard value refers to a range of an error of ± 2.5% centered on the original amount of ink droplets (for example, 10 ng).

More specifically, as shown in FIG. 7, all nozzles of the recording head 7 are driven by a predetermined piezo drive signal S3 provided by a piezo drive circuit 101 controlled by a computer 34. Then, the amount (for example, the weight) of the ink droplet I ejected by each nozzle
Are respectively measured by the electronic balance 18. The computer 34 determines whether the measured weight of the ink droplet falls within a range of a standard value set in advance by the computer 34.
As shown in FIG. 8, there are non-standard regions 50 to 52 in which the weight of the ink droplet from each nozzle does not fall within the range of a predetermined standard value. The non-standard areas 51 and 52
Indicates the characteristics of the nozzles N1 and the like and the nozzles N180 and the like near both ends arranged linearly in the recording head 7 in FIG. The non-standard area 50 in FIG. 8 shows the characteristics of the nozzle near the center of the recording head 7 in FIG.

Drawing Pattern Generation Step Next, in the drawing pattern generation step ST2 in FIG. 6, the normal plurality of ink droplets ejected from each nozzle of the recording head 7 in FIG. A drawing pattern for forming a plurality of pixels by the nozzles is generated. That is, the drawing pattern generation step ST2
Then, based on the measurement result, a drawing pattern is generated that does not use a nozzle whose ink droplet weight is out of the standard value range (10 ng ± 2.5%).

Complementary Pattern Generation Step Next, in a complementation pattern generation step ST3 in FIG. 6, abnormal plural ink droplets ejected from each nozzle of the recording head 7 in FIG. A complementary pattern for forming a plurality of pixels by the nozzles is generated. That is, in the complementary pattern generation step ST3 of FIG. 6, a complementary pattern for complementing a pixel row of an unused nozzle portion is generated.

First pixel forming step (drawing pattern drawing
Image, pixels forming step) Next, the first pixel forming step ST4 in FIG. 6, based on the drawing pattern, respectively a pixel P on the substrate 13 only by driving normal plurality of nozzles in the recording head 7 I do. Specifically, as shown in FIG. 9, the recording head 7 forms the following based on the drawing pattern while scanning in the head scanning direction HD relative to the substrate 13.

As shown in FIG. 10A, a receiving layer 31 is formed on a substrate 13 by a bank 39 or the like. While the recording head 7 scans in the head scanning direction HD relative to the substrate 13, for example, the recording head 7 is set on the receiving layer 31 as described above, as shown in FIGS. Ejects eight ink drops.

Second pixel forming step (complementary pattern drawing
Image, the other pixels forming step) Next, the second pixel formation step ST5 of FIG. 6, based on the complementary pattern, the pixel P only the driving substrate 13 normal plurality of nozzles in the recording head 7 Form each. Specifically, as shown in FIG. 9, the recording head 7 scans in the head scanning direction HD relative to the substrate 13 and based on the complementary pattern described above in FIG.
10D). Therefore, all the pixels P on one substrate 13 are drawn based on the drawing pattern and the complementary pattern.

Other ink droplets I landed on the substrate 13 are accommodated in the receiving layer 31 with the center part slightly bulging as shown in FIG. The ink droplet I is dried in a drying step, for example, as shown in FIG. Then, a protective film 35 is formed on the substrate 13 so as to cover the pixels P.

Next, a transparent electrode 37 is formed on the protective film 35 as shown in FIG. Then, the transparent electrode 37 is removed except for a place located above the pixel P as shown in FIG. In this way,
The color filter 11 of FIG. 2 is completed.

According to the preferred embodiment of the present invention, even if there are some errors in the droplet amounts of the plurality of ink droplets respectively ejected from the plurality of nozzles 91 of the recording head 7, the ejected ink droplets Since all the pixels P are formed without using the nozzles 91 whose amounts are out of the range of the preset standard value, the color in which the color unevenness of the plurality of pixels P formed on the substrate by the plurality of ink droplets is suppressed. Filter 1
1 can be produced stably.

The present invention is not limited to the above embodiment,
Various changes can be made without departing from the scope of the claims.

For example, the components of the above embodiment can be partially omitted or arbitrarily combined in a manner different from the above.

In the above-described embodiment, the three primary colors are used. However, the present invention is not limited to this, and various color combinations such as black and white and blue are considered.

The method of manufacturing a filter according to a preferred embodiment of the present invention is not limited to the manufacture of a filter for a liquid crystal display, and for example, an electro-optical device using an EL (electroluminescence) display element or the like. Application is also possible. An EL display element has a structure in which a thin film containing a fluorescent inorganic or organic compound is sandwiched between an anode and a cathode. Electrons and holes are injected into the thin film and recombined to form excitons. (Exciton),
Light emission when this exciton is deactivated (fluorescence / phosphorescence)
This is an element that emits light by utilizing. Of the fluorescent materials used in such EL display elements, materials that emit red, green, and blue light are inkjet-patterned on an element substrate such as a TFT using the method of manufacturing a filter of the present invention, so that they can be self-contained. A light-emitting full-color EL display element can be manufactured. The range of the filter in the present invention includes:
It includes a substrate for such an EL display element.

The EL display element manufactured by using the filter manufacturing method of the present invention can be applied to a low-information field such as a segment display and a still image display of simultaneous simultaneous light emission, for example, pictures, characters, labels, or the like. point,
It can also be used as a light source having a line or surface shape. Further, a full-color display element having high luminance and excellent responsiveness can be obtained by using an active element such as a TFT element as well as a passive drive display element for driving.

[0056]

According to the present invention, even if there are some errors in the amounts of the plurality of ink droplets respectively ejected from the plurality of nozzles of the recording head, the plurality of ink droplets are formed on the substrate by the plurality of ink droplets. It is possible to provide a filter capable of suppressing color unevenness of a plurality of pixels and stably producing the same, a method of manufacturing the filter, and an electro-optical device using the filter.

[Brief description of the drawings]

FIG. 1 is a plan view showing a configuration example of a substrate on which filters are arranged.

FIG. 2 is a plan view showing a configuration example of a part of a filter formed on the substrate of FIG. 1;

FIG. 3 is a plan view showing an example of how a filter is manufactured by a method for manufacturing a filter according to a preferred embodiment of the present invention.

FIG. 4 is a diagram showing a computer, a control panel, various control objects, and the like.

FIG. 5 is a diagram illustrating a configuration example of a recording head.

FIG. 6 is a flowchart illustrating an example of a method for manufacturing a filter.

FIG. 7 is a block diagram illustrating a configuration example of an ink amount measurement system.

FIG. 8 is a diagram illustrating an example of the weight of an ink droplet for each nozzle measured by the ink amount measurement system in FIG. 7;

FIG. 9 is a plan view showing an example of a state in which a recording head forms pixels while scanning in a head scanning direction relative to a substrate.

FIG. 10 is a cross-sectional view illustrating an example of a manufacturing process of a color filter.

FIG. 11 is a cross-sectional view illustrating an example of a manufacturing process of a color filter.

FIG. 12 is a plan view showing an example of how a color filter is manufactured by a conventional color filter manufacturing method.

13 is a plan view showing an example of a state in which the recording head of FIG. 12 and its periphery are enlarged.

14 is a cross-sectional view taken along the line AA 'showing an example of a state where ink droplets land on the substrate of FIG. 13 and a state where ink droplets are dried.

[Explanation of symbols]

 7 Head (Recording Head) 11 Filter 13 Substrate 91 Nozzle I Ink Drop P Pixel PB Pixel PG Pixel PR Pixel

Claims (6)

[Claims] A plurality of pixels are formed on the substrate by ejecting the ink droplets from the plurality of nozzles while scanning the substrate relative to the substrate by a recording head including a plurality of nozzles for ejecting the ink droplets. A method for manufacturing a filter by manufacturing a filter, wherein a measurement step of measuring whether or not a droplet amount of the ink droplet ejected from the plurality of nozzles is within a specified value range; A drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of normal nozzles whose droplet volume is within the range of the specified value; based on the drawing pattern, A pixel forming step of forming the plurality of pixels on the substrate by driving only the plurality of nozzles. 2. A method according to claim 1, wherein the plurality of pixels, which should have been formed by the abnormal plurality of nozzles, in which the amount of the ink droplets is out of the specified range, are formed by the normal plurality of nozzles. A complementary pattern generation step of generating a complementary pattern for performing the operation, and another pixel forming step of driving only the plurality of normal nozzles based on the complementary pattern to form the plurality of pixels on the substrate. The method for manufacturing a filter according to claim 1, wherein: 3. The range of the prescribed value of the droplet amount of the ink droplet is defined by ±± the center of the original droplet amount of the ink droplet.
2. An error range of 2.5%.
A method for manufacturing a filter according to claim 2. 4. The filter manufacturing method according to claim 1, wherein the plurality of pixels are arranged in a delta so that the pixels of the same color are not adjacent to each other. . 5. A plurality of pixels are formed on the substrate by ejecting the ink droplets from the plurality of nozzles while scanning the substrate relative to the substrate by a recording head having a plurality of nozzles for ejecting the ink droplets. A filter manufactured by a method of manufacturing a filter by manufacturing the filter, wherein a measurement is performed to determine whether a droplet amount of the ink droplet ejected from the plurality of nozzles is within a specified value range. A drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of normal nozzles in which a droplet amount of the ink droplet is within the range of the specified value; The plurality of pixels that should have been originally formed by the abnormal plurality of nozzles whose droplet volume is outside the specified value range are replaced with the normal plurality of nozzles. A complementary pattern generating step of generating a complementary pattern to be formed by: a first pixel forming step of driving only the plurality of normal nozzles based on the drawing pattern to form the plurality of pixels on the substrate And a second pixel forming step of forming only the plurality of pixels on the substrate by driving only the plurality of normal nozzles based on the complementary pattern. And filter. 6. A plurality of pixels are formed on the substrate by ejecting the ink droplets from the plurality of nozzles while scanning the substrate relative to the substrate by a recording head having a plurality of nozzles for ejecting the ink droplets. An electro-optical device using a filter manufactured by a method of manufacturing a filter by manufacturing a filter, wherein a droplet amount of the ink droplet ejected from the plurality of nozzles is within a specified value range. A measuring step of measuring whether or not the drawing is performed; and a drawing pattern generating step of generating a drawing pattern for forming the plurality of pixels by the plurality of normal nozzles in which a droplet amount of the ink droplet is within the range of the specified value. The plurality of pixels that should have been formed by the plurality of abnormal nozzles whose droplet amount of the ink droplet is outside the range of the specified value are corrected. A complementary pattern generating step of generating a complementary pattern for forming with the normal plurality of nozzles; and driving only the normal plurality of nozzles based on the drawing pattern to form the plurality of pixels on the substrate. A first pixel forming step; and a second pixel forming step of forming only the plurality of pixels on the substrate by driving only the plurality of normal nozzles based on the complementary pattern. An electro-optical device using a filter characterized by being manufactured.