WO2010029957A1

WO2010029957A1 - Ejection method and color filter manufacturing method

Info

Publication number: WO2010029957A1
Application number: PCT/JP2009/065788
Authority: WO
Inventors: 巧滑川; 勇士矢野目; 真介井口; 厳藤井; 久三中村
Original assignee: 株式会社アルバック
Priority date: 2008-09-12
Filing date: 2009-09-10
Publication date: 2010-03-18
Also published as: TW201016333A

Abstract

Provided is an ejection method wherein visible stripes are not produced. The cause of visible stripes on an object being coated is that concave parts (12), where the amount of ejected liquid is different from the amount in surrounding areas, are arranged in a straight line. Therefore, by determining the number of liquid drops which strike one concave part (12) in accordance with a random number, or by determining the signal strength which is input to an ejection element in accordance with a random number, the volume of one liquid drop is endowed with a size corresponding to the random number. Stripes are no longer visible because liquid drops having volumes corresponding to the random number are arranged in each concave part (12), and concave parts (12) in which the same volume of ejected liquid is arranged are not aligned on the same plane.

Description

Discharge method, color filter manufacturing method

The present invention relates to a technique for discharging a discharge liquid by an ink jet method.

In recent years, in order to manufacture color filters for liquid crystal display devices and color filters for PDP panels, a colored discharge liquid is discharged and landed on the substrate surface by a discharge device to which an inkjet printer technology is applied. The technology to form is drawing attention.

In an ink jet type discharge device, a large number of nozzle holes are arranged in a row, and discharge elements such as piezoelectric elements and heating elements are provided for each nozzle hole inside a discharge chamber communicating with each nozzle hole.

The ejection element ejects droplets of the volume of the ejection liquid corresponding to the signal intensity input from the control device from the nozzle hole, but there are manufacturing errors in the nozzle hole and ejection element, so the same signal strength Even if this signal is input, the volume of the ejected droplets may not be the same value.

Since the droplets ejected by one nozzle hole are landed on the recesses arranged in a row, if there is a nozzle hole that ejects a droplet whose volume is significantly different from the droplet ejected by the other nozzle hole, Due to the recesses where the liquid droplets ejected from the nozzle holes have landed, streaks are visible on the surface of the object to be coated, resulting in a defective product.

Therefore, countermeasures are also taken in the prior art, and in order to make the volume of droplets ejected from each nozzle hole constant, the droplet volume is measured in advance and the magnitude of the signal intensity input to each ejection element is adjusted. is doing.
Japanese Patent Laid-Open No. 2004-37855 JP 2004-109856 A

However, the signal intensity of each ejection element and the droplet volume are not maintained in a fixed relationship. Even if the droplet volume is made the same by adjusting the signal intensity before the ejection process starts, When the relationship between the signal intensity and the droplet volume changes depending on the number of sheets, temperature change, etc., and a nozzle hole with a different droplet volume from the surrounding appears, streaks are formed in the portion where the nozzle hole discharges the discharge liquid, and defective products There is a problem that occurs.
The present invention has been created to solve the above-described disadvantages of the prior art, and an object of the present invention is to provide a discharge method and a color filter manufacturing method that do not generate streaks.

The inventors of the present invention, even if there is a recess having a different volume of discharge liquid from the surrounding, if the position is scattered, the streaks are not visible, and the volume of the surrounding recess is not constant, The inventors discovered that the presence of a concave portion having a volume of the ejected liquid different from that of the surroundings cannot be visually recognized, and created the present invention.

In other words, the streaks can be seen because the recesses with a uniform volume of discharge liquid are arranged in a plane, and the recesses with a different volume of discharge liquid are arranged on the line. For example, the concave portion in which the discharge liquid having a uniform volume is disposed may not be disposed on the surface.

In order to solve the above problem, the present invention moves a discharge head formed with a plurality of nozzle holes relative to an application target, discharges a discharge liquid from the nozzle hole, A discharge method in which liquid droplets of the discharge liquid are landed in a recess disposed in the surface, and a discharge liquid film is formed in the recess, wherein random numbers are generated and the discharge liquid disposed in one recess is This is a discharge method for determining the volume according to the random number.
Further, the present invention is a discharge method in which a plurality of droplets are landed in the recess, and the number of droplets discharged into the recess is determined for each recess according to the random number.
In addition, the present invention is a discharge method in which a plurality of droplets are landed in the recess, and the discharge method determines the volume of the droplets according to the random number.
Further, the present invention is a discharge method for determining a volume of two or more droplets for each droplet according to the random number among the plurality of droplets discharged into one concave portion.
The present invention is also an ejection method in which the volume of the plurality of droplets ejected into one of the recesses is made the same size according to the random number.
Further, in the present invention, the plurality of recesses of the application object include a first recess in which the discharge liquid of the first color is landed and the discharge liquid of the second color different from the first color. A second recess to be landed is set, and the discharge liquids of the first and second colors are landed on the first and second recesses, respectively, by any one of the discharge methods, thereby producing a color filter. It is a color filter manufacturing method.
Further, in the present invention, the plurality of recesses of the application object include a first recess in which the discharge liquid of the first color is landed and the discharge liquid of the second color different from the first color. A second concave portion to be landed and a third concave portion to which the third color discharge liquid is landed are set, and each of the first, second and third color discharge liquids is discharged from any one of the above. This is a color filter manufacturing method for manufacturing a color filter by landing on the first, second, and third recesses by a method.
The present invention is a color filter manufacturing method for manufacturing a color filter in which the first color is red, the second color is green, and the third color is blue.

The present invention is configured as described above. In the color filter, the concave portions are surrounded by a light shielding band called a black matrix, and the concave portions are regularly arranged on a plane, so that the discharge liquid of the same volume can be obtained. The volume of the discharge liquid placed in the recess is determined according to a random number so that the recesses in which the discharge liquid of a volume different from the surroundings is not arranged in a straight line while the arranged recesses are regularly arranged. Can do.

When determining the volume of the discharge liquid according to a random number, the number of droplets landed on one recess may be determined according to the random number, or the magnitude of the signal strength that determines the volume of the droplet may be determined according to the random number. Also good. In addition, the present invention includes a case where they are combined.

In addition, the present invention includes a case where a droplet having a volume with a signal intensity according to a random number and a droplet having a preset volume land on the same recess.
In addition, the present invention includes a case where the concave portions where the predetermined volume of the discharge liquid is arranged are scattered while the concave portions where the volume of the discharge liquid according to the random number is arranged on the surface.

The application target is a color filter, and the discharge device includes a discharge head that discharges a first color discharge liquid, a discharge head that discharges a second color discharge liquid, and a discharge that discharges a third color discharge liquid. When a discharge liquid of one of the first color, the second color, and the third color lands on one of the plurality of recesses on the color filter. The volume and number of the first, second, and third color discharge liquids that land in the recesses are changed according to the random number value, and the volume of the discharge liquid in each recess is changed so that the line cannot be seen. it can.

The upper limit value and lower limit value of the volume and number of discharge liquids of the first color, second color, and third color are set for each color discharge liquid, and between each upper limit value and lower limit value for each color (above the upper limit value, The number or volume of random number values (below the lower limit value) or the discharge liquid of each color may be output in the volume or number according to the random number between the same upper limit value and the same lower limit value .

In addition, the angle between the direction of the inkjet head and the direction of the glass substrate is adjusted so that the interval between the nozzle holes and the interval between the recesses is the same, and the interval between the holes in the direction in which the recesses are aligned matches the interval between the recesses. The nozzle hole can pass through the recess.

As described above, there are the following means for changing the volume of the liquid to be disposed in the recess by a random number.

(1) When the number of droplets of the discharge liquid discharged to the recess is one, the volume of the droplet is changed by a random number.
(2) When there are one or more droplets of the discharge liquid discharged to the recess, the number is changed by a random number.
(3) When there are two or more droplets of the discharge liquid discharged to the concave portion and the same number of droplets are discharged to the concave portion on which the same color droplet is landed, one droplet within the same number The above volume is changed by a random number.

In addition to the above (1) to (3), the number of discharge liquids discharged to each recess is changed by a random number, and one or more liquid droplets among one or more liquid discharge liquid droplets discharged to the same recess. The volume of can be changed by random numbers.

によ According to the present invention, the discharge liquid is landed, and no streaks are seen on the coating object on which the discharge liquid film is formed.

The side view for demonstrating the discharge apparatus used for this invention The top view for demonstrating the discharge apparatus used for this invention Plan view for explaining nozzle holes provided in the discharge head Plan view for explaining the surface of the object to be coated Cross section of the object to be applied Cross section of color filter

4R, 4G, 4B: Discharge head 10: Application target 11: Shading band 12: Concave portion P ₁ to P _n ... Nozzle hole 15: Color filter

FIG. 1 is a side view of a discharge device 1 that can be used in the method of the present invention, and FIG. 2 is a plan view.
The discharge device 1 has a table 2, and a shaft 3 is disposed above the table 2. On the shaft 3,

discharge heads

4R, 4G, and 4B for red, green, and blue are arranged.
A discharge liquid supply device 5 and a control device 7 are disposed around the discharge device 1.

The discharge liquid supply device 5 includes a discharge liquid for forming a red filter film, a discharge liquid for forming a green filter film, and a discharge liquid for forming a blue filter film, and the

discharge heads

4R and 4G. 4B is connected to the discharge liquid supply device 5, and the

discharge heads

4R, 4G, and 4B that form filter films of different colors are configured to be supplied with discharge liquids of corresponding colors, respectively.

Each

color ejection head

4R, 4G, 4B has a plurality of nozzle holes P ₁ to P _n as shown in FIG.
Inside the

ejection heads

4R, 4G, and 4B, ejection elements such as piezoelectric elements and heating elements are provided. The ejection elements in the

ejection heads

4R, 4G, and 4B are connected to the control device 7. When the ejection device is selected by the control device 7 and a signal is input, the inputted ejection element operates and the corresponding nozzle hole The liquid droplets of the discharge liquid can be discharged.

By changing the magnitude (signal intensity) of the signal applied from the control device 7 to the ejection element, the volume of the droplet ejected from the nozzle hole can be changed.
An application object 10 is arranged on the table 2.
The application target 10 on the table 2 and the ejection heads 4R, 4G, and 4B are configured to be relatively movable.

Here, the shaft 3 is configured to be linearly reciprocable in a horizontal plane with respect to the table 2, and the ejection heads 4 </ b> R, 4 </ b> G, 4 </ b> B are in a state where the application target 10 is stationary with respect to the table 2. By moving relative to the application target 10, the application target 10 and the ejection heads 4R, 4G, 4B are moved relative to each other.

On the contrary, if the substrate 2 is provided with a substrate moving device so that the application object 10 on the table 2 can move linearly in the horizontal plane, the ejection heads 4R, 4G, 4B are moved with respect to the table 2. In a stationary state, the application target 10 may be moved relative to the ejection heads 4R, 4G, and 4B to move relative to each other.
Alternatively, the application object 10 and the ejection heads 4R, 4G, and 4B may both move relatively.

FIG. 4A is a plan view of the application object 10.
The coating object 10 has a glass substrate 13, and light shielding bands 11 called a black matrix are arranged on the glass substrate 13 in a lattice pattern. A portion surrounded by the light shielding band 11 is recessed from the surface of the light shielding body 11, and a recess 12 surrounded by the light shielding body 11 is formed.

Here, the recesses 12 have the same size and are arranged in a matrix. One of the rows and columns is arranged on the table 2 so that one of the rows and columns is parallel to the direction of relative movement between the application target 10 and the ejection heads 4R, 4G, and 4B, and the other is oriented in a vertical direction. ing.

Of the rows and columns of the recesses 12, assuming that the column extending in the direction parallel to the direction of relative movement is the column and the row extending in the direction perpendicular thereto is the row, at least the columns and columns of the recess 12 are equally spaced t. (The distance between the centers of the recesses 12).
On the other hand, the nozzle holes P ₁ to P _n are arranged in a straight line and are arranged at equal intervals w (distance between the centers of the nozzle holes).

The interval w between the nozzle holes P ₁ to P _n is not less than the interval t between the rows of the recesses 12 (w ≧ t), and the angle formed by the arrangement of the nozzle holes P ₁ to P _{n and} the row of the recesses 12. When the ejection heads 4R, 4G, and 4B are rotated in the horizontal plane with respect to the application target 10 so that θ becomes t = w · cos θ, the interval w · cos θ in the row direction of the nozzle holes P ₁ to P _n. Is equal to the interval t between the rows of the concave portions 12, so that when the application target 10 and the ejection heads 4R, 4G, 4B are relatively moved, the upper position of the concave portion 12 is set to at least one nozzle hole P ₁ to P. _n can be passed.

Among the recesses 12, a recess 12 in which a red filter film is formed, a recess 12 in which a green filter film is formed, and a recess 12 in which a blue filter film is formed are set in advance. When the discharge liquid of the same color is landed on the concave portion 12 in the inside, and the rows of the concave portions 12 on which the discharge liquid of the same color is landed every two rows are repeated, the discharge heads 4R, 4G, and 4B of one color are the concave portions in every two rows. 12 is caused to land the discharge liquid.

As a result, droplets of the discharge liquid of the corresponding color land on each recess 12, and different color filter films are formed in the different recesses 12.
When the application object 10 and the ejection heads 4R, 4G, 4B move relative to each other in the same direction as the rows of the recesses 12, the nozzle holes P ₁ to P of the ejection heads 4R, 4G, 4B are formed on the application object 10. _A droplet can be landed within the range of the width where _n is arranged.

The ejection heads 4R, 4G, and 4B are configured to reciprocate in a horizontal plane along the axis 3, and can be moved in a direction perpendicular to the row direction of the recesses 12.
When the discharge liquid is discharged from the discharge heads 4R, 4G, and 4B while relatively moving, the liquid droplets can be landed within the range of the width in which the nozzle holes P ₁ to P _n are arranged.

Next, the ejection heads 4R, 4G, and 4B are moved to positions where the ejection liquid of the application object 10 can pass over the non-landed rows, and the application object 10 and the ejection heads 4R, 4G, and 4B are relatively moved. By repeating this, the discharge liquid can be landed on a region on the surface of the application object 10 that is wider than the nozzle holes P ₁ to P _n of the discharge heads 4R, 4G, and 4B on the surface of the application object 10.

As described above, after the discharge liquid of the corresponding color is disposed in each concave portion 12 on the application target object 10, the application target object 10 is moved on the discharge apparatus 1 or from the discharge apparatus 1 to the heating and drying apparatus. When heated, the discharge liquid in the recess 12 is dried, and as shown in FIG. 5, a color filter 15 in which red, green, or

blue filter films

14R, 14G, and 14B are disposed in the recess 12 is obtained.

The portion where the red, green, or blue filter film is disposed transmits light, and the transmitted light is colored in the color of the filter film. Therefore, the color filter 15 is placed on a shutter such as a liquid crystal and each color is changed by the shutter. Color display is possible by adjusting the transmitted light ratio of the filter film.
On the other hand, the light shield 11 is made of a material that does not transmit light, and prevents light from passing through an unintended filter film.

Each recess 12 has a shape that is long in the direction of relative movement. In order to form a filter film having a uniform film thickness in the recess 12, the control device 7 has the nozzle holes P ₁ to P _n on one recess 12. During the passage, the discharge liquid is discharged a plurality of times, and the liquid droplets are landed one by one at different positions in the longitudinal direction in the single recess 12, and as a result, the discharge liquid spreads uniformly on the bottom surface of the recess 12. I am doing so.

A computer 8 is connected to the control device 7, and the storage device 9 of the computer 8 stores in advance the positions of the recesses 12 on the application object 10 in association with the nozzle holes P ₁ to P _{n of} the respective colors. Yes.
The computer 8 generates a random number and can change the volume of the discharge liquid of each color with respect to one recess 12.

As a random number generation method, for example, an FPGA (Field Programmable Gate Array) is provided in the computer 8, and a pseudo random number generator (LFSR: linear feedback register) is provided in the FPGA.
The pseudo random number generator outputs a random number for each ejection of the nozzle holes P ₁ to P _n of each color or for each concave portion 12 using parameters set for each nozzle.

The storage device 9 stores a standard waveform of the voltage output toward the piezoelectric element, and is output from the pseudo random number generator to the standard waveform voltage output from the storage device 9 by the arithmetic unit of the computer 8. A voltage based on the random number is superimposed and applied to the piezoelectric elements of the nozzle holes P ₁ to P _n of the respective colors.

If a voltage based on a random number is superimposed on the standard waveform voltage, does the amplitude (height) of the waveform become larger or smaller than the standard waveform voltage, or is the voltage application time longer than the standard waveform voltage? Or it becomes shorter.

As described above, the amount of the discharge liquid for each recess 12 is changed for each piezoelectric element of the nozzle holes P ₁ to P _n for each color, regardless of the change in the magnitude of the applied voltage value or the period of the applied voltage. It only has to be made.

Note that the superposition of the random number voltage with respect to the standard waveform voltage can be performed in advance before the discharge liquid is discharged, and the result for each recess 12 can be stored.

In addition to changing the voltage value with a random number as described above, the number of discharges can also be changed. When forming the color filter, there are cases where a single recess 12 is ejected a plurality of times. For this reason, the volume of the discharge liquid arrange | positioned in each recessed part 12 can be varied by changing the frequency | count of discharging to the one recessed part 12. FIG.

In this case, for the lower limit value N _min and the upper limit value N _max of the number of droplets discharged to one recess 12, the lower limit value and the upper limit value of the number of droplets of red, green, and blue discharge liquids are previously set for each color. Stored and set, the lower limit value of the number of droplets of red, green, and blue discharge liquid is expressed as N _min (R), N _min (G), N _min (B), and the upper limit value is expressed as N _max (R ), N _max (G), and N _max (B), the random numbers N _ran (R), N _ran (G), and N _ran (B) corresponding to the number of red, green, and blue droplets are random numbers. 1 ≤ N _min (R) ≤ N _ran (R) ≤ N _max (R), 1 ≤ N _min (G) ≤ N _ran (G) ≤ N _max (G), 1 ≤ N _min (B) ≦ N _ran (B) ≦ N _max (B) (N _min (R), N _min (G), N _min (B), N _max (R), N _max (G) , N _max (B), N _ran (R), N _ran (G), and N _ran (B) are integers), the number of droplets, 9 is associated with the recess 12 and stored for each recess 12.

The control device 7 sets the signal intensity for one ejection, that is, the signal intensity for ejecting one droplet, for each color so that the volume of one droplet becomes the same value for each color. When a signal having the same signal intensity is input to each recess 12 for each color, droplets having substantially the same volume for each color are ejected from the nozzle holes P ₁ to P _n. Yes.

Here, a droplet having a signal intensity set for each color is stored in accordance with a random number, and droplets of the number of droplets N _ran (R), N _ran (G), and N _ran (B) are stored in one nozzle hole. The ink is discharged to one concave portion 12 corresponding to the number of droplets stored from P ₁ to P _n .
As a result, since a set volume of droplets reaches the recess 12 by the number of droplets corresponding to the random number, a discharge liquid having a volume corresponding to the random number is disposed in each recess 12.

Accordingly, different volumes of the discharge liquid corresponding to the random number result are arranged in the recess 12 and are arranged on a plane. Therefore, when a signal with the same signal intensity is applied to the nozzle holes N ₁ to N _n , one drop Even if there are nozzle holes N ₁ to N _n with different discharge amounts, no streak is visible.

Lower limit values N _min (R), N _min (G), and N _min (B) of different colors with different numbers of droplets landing on one concave portion 12, or upper limit values N _max (R), N _max (G), The magnitudes of N _max (B) may be the same value or different values.

In addition, the signal intensity for discharging one droplet of different colored discharge liquid may be set to the same magnitude, and the volume per droplet may be set to the same value between different colors. Alternatively, the volume per droplet may vary depending on the color.

Further, instead of determining the number of droplets by random numbers, out of the recesses 12 in which the discharge liquid of the same color is disposed, when ejecting the same number of two or more droplets to one recess 12, The volume of one or more of the plurality of droplets ejected to one recess 12 may be changed by a random number.

Since the ejection elements in the ejection heads 4R, 4G, and 4B eject a droplet having a volume proportional to the signal intensity, the volume of one droplet is determined according to the random number by determining the magnitude of the signal intensity using a random number. Can be sized.

In this case, when a lower limit value and an upper limit value of the signal intensity are set and a random number value that is greater than or equal to the lower limit value and less than or equal to the upper limit value is generated, a droplet having a volume that is greater than or equal to the lower limit volume and less than or equal to the upper limit volume is ejected. Can do.

Further, the number of droplets to be ejected is set for each color of the ejected liquid, the signal intensity is determined for each recess 12 according to a random number, and a signal having a signal intensity according to the random number value is applied to the ejection element a set number of times. The set number of droplets can be ejected with a volume corresponding to the signal intensity.

In this example, since the signal intensity is determined by a random number for each recess 12, the volume of droplets that land on one recess 12 is the same, but the present invention is not limited thereto, and the ejection element Alternatively, the signal intensity of the signal input to may be determined for each droplet according to a random number, and the volume of the droplet landing on one recess 12 may be changed according to the random number.

In this case, the number of droplets landed on the recess 12 may be a fixed number for each color, or may be a number according to a random number.
Similarly to the previous example, a lower limit value and an upper limit value of the signal intensity are set, and a signal intensity having a magnitude that is greater than or equal to the lower limit value and less than or equal to the upper limit value can be determined for each droplet with a random number.

Also when the droplet volume is determined by a random number, the volume of the discharge liquid arranged in the recess 12 takes a different value according to the random number, and thus the stripe is not visible.

The signal strength can be set according to either the magnitude of the voltage or the magnitude of the current. When the signal strength is determined according to a random number, the voltage application time to the ejection element is set to a fixed time, and the magnitude of the voltage is set. Can be determined according to a random number, or the current flowing time can be set to a fixed time, and the magnitude of the current flowing through the ejection element can be determined according to the random number.

In the case of an ejection element whose volume is determined by the product of the applied voltage and the applied time or the product of the time that the current and the current flow, the signal is obtained by changing the voltage applied time and the current flowing time with a random number The intensity can be changed with a random number.

The random number value may be generated at the time of ejection, or may be generated and stored in advance before the ejection is started.
When a random number is generated for each recess 12, it can be stored for each recess 12, and when it is generated for each droplet, it may be stored for each droplet to be ejected.

In the above embodiment, the color filters are created by landing the discharge liquids of three colors of red, green, and blue on the different concave portions 12 of the same application target 10, but the discharge of two colors or four or more colors is performed. The color filter may be created by landing the liquid on different concave portions of the same application object.

In addition, the present invention is not limited to the case of forming a filter film. For example, the organic EL thin film raw material liquid is discharged as a discharge liquid, and the liquid droplets are landed on the recesses to form the organic EL thin film. The case where an EL display device is produced is also included in the present invention. In short, the present invention includes a case in which a discharge liquid of one color (including a transparent color) is discharged to form a coating film of the discharge liquid in the recess, instead of the discharge liquids of different colors.

In the above embodiment, the discharge liquid is discharged while the application target 10 and the discharge heads 4R, 4G, and 4B are moved relative to each other. However, the discharge liquid is discharged while the discharge liquid is discharged, and then landed. You may be stationary while you do.

Claims

A discharge head in which a plurality of nozzle holes are formed is moved relative to the object to be applied, discharge liquid is discharged from the nozzle holes, and the liquid of the discharge liquid is placed in a recess disposed on the object to be applied. A discharge method for landing droplets and forming a discharge liquid film in the recess,
A discharge method for generating a random number and determining a volume of the discharge liquid disposed in one of the recesses according to the random number.
The discharge method according to claim 1, wherein a plurality of droplets are landed in the recess.
An ejection method for determining the number of droplets ejected into the recess for each recess according to the random number.
The discharge method according to claim 1, wherein a plurality of droplets are landed in the recess.
A discharge method for determining a volume of the droplet according to the random number.
The ejection method according to claim 3, wherein the volume of two or more droplets among the plurality of droplets ejected into one concave portion is determined for each droplet according to the random number.
4. The ejection method according to claim 3, wherein the volume of the plurality of droplets ejected into one recess is made the same size according to the random number.
In the plurality of recesses of the application object, a first recess in which the discharge liquid of the first color is landed and a second in which the discharge liquid of a second color different from the first color is landed A recess is set, and the discharge liquids of the first and second colors are landed on the first and second recesses by the discharge method according to any one of claims 1 to 5, and a color is formed. A color filter manufacturing method for manufacturing a filter.
In the plurality of recesses of the application object, a first recess in which the discharge liquid of the first color is landed and a second in which the discharge liquid of a second color different from the first color is landed A concave portion and a third concave portion on which the discharge liquid of the third color is landed are set, and the discharge liquid of the first, second, and third colors is set to any one of claims 1 to 5. A color filter manufacturing method in which a color filter is manufactured by landing on the first, second, and third recesses by the discharge method according to the item.
The color filter manufacturing method for manufacturing a color filter according to claim 7, wherein the first color is red, the second color is green, and the third color is blue.