JP2010204414A - Liquid drop discharge device, liquid drop discharge method, and method of manufacturing color filter - Google Patents

Liquid drop discharge device, liquid drop discharge method, and method of manufacturing color filter Download PDF

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Publication number
JP2010204414A
JP2010204414A JP2009050331A JP2009050331A JP2010204414A JP 2010204414 A JP2010204414 A JP 2010204414A JP 2009050331 A JP2009050331 A JP 2009050331A JP 2009050331 A JP2009050331 A JP 2009050331A JP 2010204414 A JP2010204414 A JP 2010204414A
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Prior art keywords
sheet member
plurality
nozzles
ink
droplet discharge
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JP2009050331A
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Japanese (ja)
Inventor
Takashi Goto
Takeshi Kato
Sadaji Komori
剛 加藤
貞治 小森
任 後藤
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Seiko Epson Corp
セイコーエプソン株式会社
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Abstract

Disclosed are a droplet discharge device, a droplet discharge method, and a method for manufacturing a color filter, which are capable of suppressing deterioration in image quality by making stripes inconspicuous and having excellent production efficiency.
A droplet discharge head having a plurality of nozzles and a plurality of drive elements, a supply reel for supplying a sheet member, a take-up reel for winding the sheet member, and a sheet member. Is fixed to the support 11, the heating means 34 for heating and drying the surface of the sheet member 15 fixed on the support 11, and the sheet member 15 are discharged from a plurality of nozzles. An imaging device 14 that captures an image of the functional fluid, and an analysis that calculates the distribution of functional fluid ejected from a plurality of nozzles by measuring the landing area of the functional fluid on the sheet member 15 by performing image processing on the image Means 32 and control means 31 for adjusting the voltages applied to the plurality of drive elements so that the discharge amounts at the plurality of nozzles approach a predetermined appropriate amount from the distribution.
[Selection] Figure 1

Description

  The present invention relates to a droplet discharge device, a droplet discharge method, and a color filter manufacturing method.

  2. Description of the Related Art In recent years, electro-optical devices such as liquid crystal devices and organic EL (Electro-Luminescent) devices have been used for display units of electronic devices such as mobile phones and portable computers. These electro-optical devices generally perform full color display. For example, full color display by a liquid crystal device is displayed by passing light modulated by a liquid crystal layer through a color filter. Such a color filter is formed by ejecting ink on the surface of a substrate in a dot shape by a film forming technique using a droplet discharge method.

  By the way, in the film forming technique using the droplet discharge method, the ink discharge amounts of the plurality of nozzles vary slightly. When the ink is drawn with variations in the ink discharge amount, streaky shading unevenness (straight unevenness) may occur in the color filter. Such uneven stripes are easily visible, and the image quality displayed through the color filter may be degraded.

  A technique for solving such a problem has been studied. For example, in Patent Document 1, a medium to be colored is colored with a plurality of different ink discharge densities, and the color density of the colored portion is measured to obtain a plurality of colors. The relationship between the color density of each colored portion colored with a different ink discharge density and the corresponding ink discharge density is calculated. Based on this relationship, a reduction in the image quality of the display image is suppressed by correcting the ink discharge density to obtain a desired color density.

JP-A-10-260306

  In Patent Document 1, the color density of each colored portion colored with different ink discharge densities is represented by the absorbance of the colored portion of the medium to be colored. If an error occurs during the measurement of the absorbance, correction with high accuracy cannot be performed, and it may be difficult to suppress deterioration in image quality.

  On the other hand, a method of measuring the weight of ink ejected from a plurality of nozzles is conventionally used. However, measuring the weight of the ink is not preferable in terms of mass production because it is not easy to measure and requires a large number of man-hours, and is inferior in production efficiency.

  The present invention has been made in view of such circumstances, and it is possible to suppress deterioration in image quality by making stripes inconspicuous, and further, a droplet discharge device, a droplet discharge method, and It is an object to provide a method for producing a color filter.

In order to solve the above problems, a droplet discharge apparatus according to the present invention includes a plurality of nozzles that discharge a functional liquid and a plurality of drive elements that are provided corresponding to the plurality of nozzles. A supply reel for supplying a sheet member for landing the functional liquid discharged from the plurality of nozzles, a take-up reel for winding the sheet member supplied from the supply reel, and a supply reel supplied from the supply reel Fixing means for fixing the sheet member on the support, heating means for heating and drying the surface of the sheet member fixed on the support by the fixing means, and drying treatment by the heating means An imaging device that captures images of the functional liquid ejected from the plurality of nozzles on the sheet member between the supply reel and the take-up reel; and Analyzing the image taken by the image processing, measuring the landing area of the functional liquid on the sheet member, and determining the distribution of the discharge amount of the functional liquid discharged from the plurality of nozzles; and the distribution Control means for adjusting a voltage applied to the plurality of drive elements so that the discharge amount from the plurality of nozzles approaches a predetermined appropriate amount.
According to this configuration, the sheet member is fixed on the support by the fixing means. And the surface of the sheet | seat member fixed on the support body by a heating means is heated, and is dried. And the image which the ink (functional liquid) discharged from the several nozzle landed by the imaging device is image | photographed. Then, the distribution of the ejection amount of the ink ejected from the plurality of nozzles is obtained based on the landing area of the ink ejected from the plurality of nozzles by the analyzing means. Then, the voltage applied to the drive element is adjusted by the control means so that the ink discharge amount at the plurality of nozzles approaches a predetermined appropriate amount. That is, the variation in the ink discharge amount at the plurality of nozzles is corrected by the control means. For this reason, a uniform amount of ink can be ejected from all nozzles of the droplet ejection head. Further, since the surface of the sheet member is heated while the sheet member is fixed on the support, the surface of the sheet member can be dried while suppressing deformation due to heat of the sheet member. Then, since the surface of the sheet member is dried, variation in the ink landing area on the sheet member is reduced. That is, the surface of the sheet member has a predetermined permeability with respect to the ink, and the permeability should be uniformly controlled. Landing process), the surface permeability becomes non-uniform due to some cause (for example, the penetration of moisture in the air by the ink receiving layer on the surface of the sheet member). This may cause problems in measurement. Therefore, in the droplet discharge device of the present invention, before the ink is landed, the surface of the sheet member is previously dried by heating to make the surface permeability uniform. This makes it possible to accurately measure the ink landing area on the sheet member. Further, high controllability can be obtained in the subsequent adjustment of the ink discharge amount. For this reason, it is possible to make the ink landing area uniform in all nozzles of the droplet discharge head. Accordingly, it is possible to suppress the deterioration of the image quality by making the stripes inconspicuous. Further, a method for obtaining a distribution of the ejection amount of ink ejected from a plurality of nozzles based on the landing area of the ink at the plurality of nozzles by heating the surface of the sheet member by a heating means and performing a drying process is a plurality of conventional methods. Compared with the method of measuring the weight of the ink ejected from the nozzles, the production efficiency is excellent because it does not require a huge number of man-hours. In addition, since the sheet member on which the ink ejected from the plurality of nozzles has landed is appropriately conveyed, the landing area can be measured efficiently.

In the droplet discharge device of the present invention, the sheet member may have a porous ink receiving layer in which a pigment is bound with a binder.
According to this configuration, a substantially uniform amount of ink is ejected from all the nozzles of the droplet ejection head, and the ink landing area in all the nozzles is remarkably uniform. In particular, when the sheet member has a porous ink-receiving layer, the ink-receiving layer surface is easily filled by moisture absorption, and the size of the space is likely to be uneven. Since the property should be controlled uniformly, it has a remarkable effect.

In the liquid droplet ejection apparatus of the present invention, the fixing unit may have a plurality of suction holes for sucking a surface of the sheet member opposite to a side on which the functional liquid is landed.
According to this configuration, since the sheet member is adsorbed by the plurality of adsorbing holes, it is securely fixed on the support. Further, by heating the surface of the sheet member while securely fixing the sheet member on the support, the surface of the sheet member can be dried while reliably suppressing deformation of the sheet member due to heat. Therefore, since the surface of the sheet member is dried, the variation in the ink landing area on the sheet member is significantly reduced.

In the droplet discharge device of the present invention, the fixing unit may include a pressing portion that presses a region of the sheet member where the functional liquid does not land.
According to this configuration, since the sheet member is pressed by the pressing portion, it is securely fixed on the support. Further, by heating the surface of the sheet member while securely fixing the sheet member on the support, the surface of the sheet member can be dried while reliably suppressing deformation of the sheet member due to heat. Further, the flatness of the sheet member can be ensured as compared with the configuration having the plurality of suction holes. Accordingly, since the surface of the sheet member 15 is dried and the flatness of the sheet member is ensured, the variation in the ink landing area on the sheet member is significantly reduced.

The droplet discharge method of the present invention is a droplet discharge method using a droplet discharge head having a plurality of nozzles for discharging a functional liquid and a plurality of drive elements provided corresponding to the plurality of nozzles. Then, the functional liquid is landed on the sheet member after the first drying treatment step of heating and drying the surface of the sheet member while fixing the sheet member on the support, and after the first drying treatment step. After the first landing step and the first landing step, the first landing area of the functional liquid landed on the sheet member is measured, and the distribution of the discharge amount of the functional liquid discharged from the plurality of nozzles is determined. A first analysis step to be obtained; and a first control step of adjusting a voltage applied to the plurality of drive elements so that the discharge amount at the plurality of nozzles approaches a predetermined appropriate amount from the distribution. And
According to this manufacturing method, since the surface of the sheet member is dried while suppressing the deformation of the sheet member due to heat in the first drying process, variation in the ink landing area on the sheet member is reduced. Then, the distribution of the ink discharge amount at the plurality of nozzles is obtained by the first analysis step after the first landing step. In the first control step, the ink discharge amount at the plurality of nozzles is adjusted to approach a predetermined appropriate amount. As a result, the variation in the ink discharge amount among the plurality of nozzles is corrected. For this reason, it is possible to discharge a uniform amount of ink from all the nozzles of the droplet discharge head and make the ink landing area uniform in all the nozzles. Accordingly, it is possible to suppress the deterioration of the image quality by making the stripes inconspicuous.

In the droplet discharge method, it is preferable that the first landing step is performed while heating and drying the sheet member.
According to this manufacturing method, the ink landed on the sheet member is dried before the ink spreads, so that the ink landing diameter is reduced. As the ink landing diameter decreases, the variation in the ink landing area on the sheet member decreases. Therefore, it is possible to remarkably uniform the ink landing area in all the nozzles.

In the droplet discharge method, after the first control step, a second drying process step of heating and drying the surface of the sheet member while fixing the sheet member on the support; A second landing process for landing the functional fluid on the sheet member after the second drying treatment step; and a second landing area of the functional liquid landed on the sheet member after the second landing step; A second analysis step for obtaining a distribution of the discharge amount of the functional liquid discharged from the plurality of nozzles; and the plurality of drive elements so that the discharge amount at the plurality of nozzles approaches a predetermined appropriate amount from the distribution. It is desirable to have at least one second control step of adjusting the voltage to be applied.
According to this manufacturing method, after the first control step, the drying process step, the landing step, the analysis step, and the control step are repeated a plurality of times, thereby causing variations in the ink discharge amount among the plurality of nozzles and the plurality of nozzles. The variation of the landing area in the is reliably adjusted. For this reason, it is possible to discharge a substantially uniform amount of ink from all the nozzles of the droplet discharge head, and to make the ink landing area in all the nozzles extremely uniform. Therefore, it is possible to make the unevenness more inconspicuous and to suppress the deterioration of the image quality.

The method for producing a color filter of the present invention is characterized in that the functional liquid is disposed in a predetermined region provided on a base material to form a color filter using the droplet discharge method described above.
According to this manufacturing method, as described above, a uniform amount of ink is ejected from all nozzles of the droplet ejection head, and the landed area of ink at all nozzles is made uniform. Color filters can be manufactured.

It is a schematic diagram which shows schematic structure of the droplet discharge apparatus of 1st Embodiment. It is a schematic diagram which shows schematic structure of a droplet discharge head. It is explanatory drawing of the method of forming a color filter on a color filter board | substrate. It is a flowchart which shows the process of a droplet discharge method. It is a figure which shows the state of the ink receiving layer of the sheet | seat member surface before and behind moisture permeation. It is a figure which shows the arrangement | positioning state of the ink before and behind the correction | amendment of the landing area dispersion | variation. It is a figure which shows the discharge characteristic of the droplet discharge head before and after dispersion | variation correction | amendment of an ink discharge amount. It is a schematic diagram which shows schematic structure of the droplet discharge apparatus of 2nd Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings. This embodiment shows one aspect of the present invention, and does not limit the present invention, and can be arbitrarily changed within the scope of the technical idea of the present invention. Moreover, in the following drawings, in order to make each structure easy to understand, an actual structure and a scale, a number, and the like in each structure are different.

  In the following description, the XYZ rectangular coordinate system shown in FIG. 1 is set, and each member will be described with reference to this XYZ rectangular coordinate system. In the XYZ orthogonal coordinate system, the X axis and the Y axis are set in a direction parallel to the work stage 16, and the Z axis is set in a direction orthogonal to the work stage 16. In the XYZ coordinate system in FIG. 1, the XY plane is actually set to a plane parallel to the horizontal plane, and the Z axis is set to the vertically upward direction.

(First embodiment)
(Droplet discharge device)
FIG. 1 is a schematic diagram showing a schematic configuration of a droplet discharge device 1 according to the first embodiment of the present invention. The droplet discharge device 1 is a device that forms a color filter layer by discharging droplets of a color filter material (functional liquid) onto a predetermined region of a color filter substrate (base material) P by, for example, an inkjet method. The droplet discharge device 1 also performs the droplet discharge method of the present invention.

  The droplet discharge device 1 includes a work stage 16, a droplet discharge head 5, a tube 45, a tank 33, a sheet member transport base (support) 11, a supply reel 12, a take-up reel 13, and an area measurement camera (imaging device). 14, a control unit (control means) 31, an analysis unit (analysis means) 32, an infrared irradiation device (heating means) 34, a first wiring 41, a second wiring 42, a third wiring 43, and a fourth wiring 44. .

  The work stage 16 is installed so as to be movable in the X-axis direction by a stage moving device (not shown). The work stage 16 holds the color filter substrate P transported from a transport apparatus (not shown) on the XY plane by a vacuum suction mechanism (not shown).

  The droplet discharge head 5 is electrically connected to the control unit 31 via the first wiring 41. The droplet discharge head 5 has a plurality of nozzles N (see FIG. 2), and discharges droplets of color filter material based on drawing data and drive control signals input from the control unit 31. The droplet discharge heads 5 are provided corresponding to the color filter materials R (red), G (green), and B (blue). The droplet discharge head 5 is connected to the tank 33 through a tube 45.

  The droplet discharge head 5 includes a bearing mechanism (not shown) such as a pole screw or a linear guide in the Y-axis direction and the Z-axis direction. The droplet discharge head 5 is movable in the Y-axis direction and the Z-axis direction based on the position control signal indicating the Y coordinate and the Z coordinate input from the control unit 31.

  The tube 45 is a tube for supplying a color filter material that connects the tank 33 and the droplet discharge head 5. The tank 33 stores three color filter materials: a color filter material for R (red), a color filter material for G (green), and a color filter material for B (blue). The tank 33 stores the color filter materials of three colors and supplies the color filter materials to the droplet discharge heads 5 corresponding to the three colors via the tubes 45.

  The sheet member transport table 11 is movable in the X-axis direction by a transport table moving device (not shown). The sheet member conveying table 11 is a conveying table for the sheet member 15 that conveys the belt-shaped sheet member 15 supplied from the supply reel 12. The sheet member 15 supplied from the supply reel 12 is taken up by the take-up reel 13.

  The sheet member conveyance table 11 includes a vacuum chuck (fixing means) 61 as a means for fixing the sheet member 15 on the sheet member conveyance table 11. The vacuum chuck 61 is constituted by suction holes 61 a formed at a plurality of locations on the sheet member conveyance table 11. The sheet member 15 is disposed on the sheet member conveyance table 11 so as to overlap the vacuum chuck 61. The vacuum chuck 61 is connected to a vacuum line (not shown) formed inside the sheet member conveyance table 11, is evacuated by a device (not shown) such as a vacuum pump, and the vacuum state is established by closing a valve of the vacuum line. Made. In this way, the sheet member 15 is fixed on the sheet member conveyance table 11 by adsorbing the surface (back surface) opposite to the ink landing side.

  The sheet member 15 is a recording medium on which dot-shaped landing areas of ink (functional liquid) ejected from a plurality of nozzles N of the droplet ejection head 5 can be recorded. As the sheet member 15, for example, recording paper such as roll paper can be used. In addition, as the sheet member 15, a substrate having water repellency such as a glass substrate can be used instead of the roll paper. Further, as the other sheet member 15, for example, a sheet in which an ink receiving layer is provided on a base material such as paper or a plastic film can be used.

  In the present embodiment, a sheet in which an ink receiving layer is provided on a plastic film is used as the sheet member 15. The ink receiving layer will be described later (see FIG. 5).

  Further, the sheet member 15 may be used for confirming the discharge state (nozzle omission and bending) of the plurality of nozzles N of the droplet discharge head 5 before production, that is, before drawing on the color filter substrate P. is there.

  The area measuring camera 14 is disposed at a position facing the recording surface (upper surface) of the sheet member 15 on the sheet member conveying table 11. The area measurement camera 14 is a camera that photographs the landing area of ink ejected from the plurality of nozzles N to the sheet member 15. The area measurement camera 14 is electrically connected to the analysis unit 32 via the second wiring 42. The area measurement camera 14 outputs image data of the shot ink landing area to the analysis unit 32.

  The analysis unit 32 measures the landing area by image processing the ink landing area image data photographed by the area measurement camera 14, and discharges ink from the plurality of nozzles N based on the obtained landing area measurement data. It has a function for obtaining a distribution of quantities. The analysis unit 32 is electrically connected to the control unit 31 via the third wiring 43. The analysis unit 32 outputs the measurement data of the ink discharge amount distribution at the plurality of nozzles N to the control unit 31.

  The infrared irradiation device 34 is disposed at a position facing the recording surface (upper surface) of the sheet member 15 on the sheet member conveyance table 11. The infrared irradiation device 34 has a function of performing a drying process by irradiating and heating the surface of the sheet member 15 so as to adjust the permeability of the sheet member 15 with respect to the ink. The control unit 31 is electrically connected via the fourth wiring 44.

  The control unit 31 adjusts the voltage to be applied to the drive element PZ (see FIG. 2) based on the measurement data of the ink discharge amount at the plurality of nozzles N input from the analysis unit 32. Specifically, the control unit 31 adjusts the voltage applied to the drive element PZ so that the ink discharge amount from the plurality of nozzles N approaches a predetermined appropriate amount. Then, the variation in the ink discharge amount of the plurality of nozzles N is adjusted by the drive element PZ. That is, the variation in the ink discharge amount among the plurality of nozzles N is corrected.

  After the variation in the ink discharge amount at the plurality of nozzles N is corrected, the work stage 16 is arranged at a position facing the infrared irradiation surface (lower surface) of the infrared irradiation device 34 by the stage moving device. Then, the color filter substrate P held on the work stage 16 is dried by the infrared irradiation device 34. Thereafter, droplets of the color filter material are ejected from the plurality of nozzles N of the droplet ejection head 5 to predetermined positions on the color filter substrate P.

  FIG. 2 is a schematic diagram showing a schematic configuration of the droplet discharge head 5. 2A is a plan view of the droplet discharge head 5 viewed from the work stage 16, FIG. 2B is a partial perspective view of the droplet discharge head 5, and FIG. It is a fragmentary sectional view of 1 nozzle.

As shown in FIG. 2A, the droplet discharge head 5 includes a plurality of (for example, 180) nozzles N 1 to N 180 arranged in the Y-axis direction. A nozzle row NA is formed by the nozzles N 1 to N 180 . Although FIG. 2A shows one row of nozzles, the number of nozzles and the number of nozzle rows provided in the droplet discharge head 5 can be arbitrarily changed, and the nozzles for one row arranged in the Y-axis direction are arranged as X. A plurality of rows may be provided in the axial direction.

As shown in FIG. 2 (b), the droplet discharge head 5, a vibration plate 20 that material supply hole 20a is provided which is connected to the tube 45, a nozzle plate 21 in which the nozzles N 1 to N 180 is provided A liquid reservoir 22 provided between the vibration plate 20 and the nozzle plate 21, a plurality of partition walls 23, and a plurality of storage chambers 24 are provided. Drive elements PZ 1 to PZ 180 are arranged on the vibration plate 20 corresponding to the nozzles N1 to N180. The drive elements PZ 1 to PZ 180 are, for example, piezo elements.

The liquid reservoir 22 is filled with a liquid color filter material supplied through the material supply hole 20a. The storage chamber 24 is formed so as to be surrounded by the vibration plate 20, the nozzle plate 21, and a pair of partition walls 23. The storage chamber 24 is provided in a one-to-one correspondence with each of the nozzles N 1 to N 180 . In addition, the color filter material is introduced into the respective storage chambers 24 from the liquid reservoir 22 through a supply port 24 a provided between the pair of partition walls 23.

As shown in FIG. 2C, the drive element PZ 1 is obtained by sandwiching a piezoelectric material 25 between a pair of electrodes 26. The drive element PZ 1 is configured such that the piezoelectric material 25 contracts when a drive signal is applied to the pair of electrodes 26. The vibration plate 20 such drive elements PZ 1 is disposed, wrinkles become integral with the drive element PZ 1 applies a driving signal to the pair of electrodes 26 to the outside (opposite side of the accommodating chamber 24) at the same time It bends, and thereby the volume of the storage chamber 24 is increased.

Accordingly, the color filter material corresponding to the increased volume in the storage chamber 24 flows from the liquid reservoir 22 through the supply port 24a. Further, when the application of the drive signal to the drive element PZ 1 is stopped from such a state, the drive element PZ 1 and the diaphragm 20 both return to the original shape, and the storage chamber 24 also returns to the original volume. Accordingly, accommodation chamber pressure of the color filter material 24 is increased, the droplet L of the color filter material is ejected toward the nozzle N 1 on the color filter substrate P. In addition, by using the drive element PZ 1 , it is possible to cause fine vibration in the storage chamber 24 and adjust the ink discharge amount with high accuracy.

  FIG. 3 is an explanatory diagram of a method for forming a color filter layer (color filter) CF on the color filter substrate P using the droplet discharge head 5. FIG. 3A is a schematic plan view of a color filter substrate P that is an ink discharge target. FIG. 3B is a partially enlarged plan view of the color filter substrate P.

  In FIG. 3A, a plurality of panel areas CA are set on the surface of a large-area color filter substrate P formed of glass, plastic or the like. Each panel area CA is separated (cut) from each other and provided as an individual color filter substrate. In each panel area CA, as shown in FIG. 3B, a plurality of pixels PX (predetermined areas) arranged in a dot shape are provided. The pixels PX are arranged in a matrix in each panel area CA, and a color filter layer (colored layer) CF is formed for each pixel PX.

  The vertical direction (indicated by arrows A1 and A2) in FIG. 3B is the main scanning direction, and the direction orthogonal to the main scanning direction (left and right direction in the drawing) is the sub-scanning direction. Arranged on the filter substrate P. Then, while moving (scanning) the color filter substrate P relative to the droplet discharge head 5 in the main scanning direction and the sub-scanning direction, ink containing a coloring material from a plurality of nozzles N of the droplet discharge head 5 ( Color filter material) is discharged, and a color filter layer CF is formed on each pixel PX on the color filter substrate P.

  The droplet discharge head 5 is scanned a plurality of times for one panel area CA. For example, after the droplet discharge head 5 is scanned in the main scanning direction, the droplet discharge head 5 is moved (scanned) in the sub-scanning direction, and scanning is performed again in the main scanning direction. After moving (sub-scanning) from the left end to the right end of one panel area CA, it returns to the left end of the panel area CA again, and scans in the main scanning direction at a position slightly different from the position where the ejection has already been performed. Then, by performing such scanning a plurality of times, the color filter layer CF having a desired film thickness is formed on all the pixels PX in the panel area CA.

  In FIG. 3B, the reason why the droplet discharge head 5 is inclined with respect to the sub-scanning direction is to match the pitch of the nozzles N of the droplet discharge head 5 with the pitch of the pixels PX. If the pitch of the nozzles N and the pitch of the pixels PX are set so as to satisfy a predetermined correspondence relationship, it is not necessary to tilt the droplet discharge head 5 obliquely.

  The color filter layer CF is formed by arranging R, G, and B colors in an appropriate arrangement form such as a so-called stripe arrangement, delta arrangement, mosaic arrangement, or the like. Therefore, in the ink ejection process shown in FIG. 3B, the droplet ejection heads 5 that eject R, G, and B color filter materials are prepared in advance for the three colors R, G, and B. Then, an array of three color filter layers CF of R, G, and B is formed on one color filter substrate P using these droplet discharge heads 5 in order.

  By the way, in general, in a droplet discharge head, there is a slight variation in ink discharge characteristics (discharge amount) between nozzles (see FIG. 6A). If there is a variation in the amount of ink discharged between the nozzles, the amount (landing area) of the ink on the color filter substrate P varies due to this, which causes the color filter to be uneven. .

  FIG. 6 is a diagram illustrating an ink arrangement state on the sheet member 15 before and after the correction of the variation in the ink landing area at the plurality of nozzles N. FIG. FIG. 6A shows an ink arrangement state before correction of variation in landing area. FIG. 6B shows the ink arrangement after correction of the variation in the landing area. In FIG. 6, M (M1 to M5) indicates the arrangement state of the ink corresponding to the plurality of nozzles N arranged in the Y-axis direction described above. Further, MA (MA1 to MA5) indicates an ink arrangement row corresponding to a plurality of nozzle rows NA in which a plurality of rows of nozzles arranged in the Y-axis direction are provided in the X-axis direction. As shown in FIG. 6A, when the arrangement state of the ink corresponding to the plurality of nozzles N and the plurality of nozzle arrays NA is seen, it is confirmed that there is a variation in the landing area as a whole.

  Therefore, in the droplet discharge method of the present invention, the voltage applied to the drive element PZ of the droplet discharge head 5 is adjusted before drawing on the color filter substrate P before correction (before production), and a plurality of nozzles In addition to providing a process for adjusting the ink ejection characteristics in N, a process for adjusting the ink landing area in the plurality of nozzles N by heating and drying the surface with the infrared irradiation device 34 is provided. Hereinafter, an example of the droplet discharge method of the present invention will be described.

(Droplet ejection method)
FIG. 4 is a flowchart showing the steps of the droplet discharge method of the present invention. In the droplet discharge method of the present invention, an “apparatus positioning step” (step S1) in which the apparatus is positioned at a predetermined position and the apparatus is positioned, and the sheet member 15 is fixed on the sheet member conveying table 11. Then, the “first drying process step” (step S2) in which the surface of the sheet member 15 is heated and dried, and the ink applied to the sheet member 15 with a constant voltage applied to the drive element PZ is “first landing step”. "(Step S3)" and the "first analysis step" (step S4) for measuring the first landing area landed on the sheet member 15 after the first landing step and obtaining the distribution of the ink discharge amounts at the plurality of nozzles N Then, the “sheet member winding process” (step S5) for winding the sheet member 15 and the voltage applied to the drive element PZ are adjusted so that the ink discharge amount at the plurality of nozzles N approaches a predetermined appropriate amount. That has a "first control step" (step S6), and the.

  First, the apparatus is positioned at a predetermined position to align the apparatus (step S1 in FIG. 4). Specifically, the sheet member conveyance table 11 is moved in the X-axis direction and disposed immediately below the infrared irradiation device 34. Thereby, the sheet member 15 on the sheet member conveyance table 11 is disposed so as to face the infrared irradiation surface (lower surface) of the infrared irradiation device 34.

  Next, the sheet member 15 is fixed on the sheet member conveyance table 11 by the vacuum chuck 61. Specifically, the vacuum line inside the sheet member conveyance table 11 connected to the vacuum chuck 61 is evacuated by a vacuum pump. Then, the vacuum chuck 61 is brought into a vacuum state by closing the valve of the vacuum line, and the sheet member 15 is fixed on the sheet member conveyance table 11.

  Next, a drying process for adjusting the permeability of the sheet member 15 with respect to ink is performed by the infrared irradiation device 34 while the sheet member 15 is fixed on the sheet member conveyance table 11. (Step S2 in FIG. 4). Specifically, infrared rays are irradiated from the infrared irradiation device 34 onto the sheet member 15 so as to make the permeability to ink uniform. The surface of the sheet member 15 is heated and dried by the infrared irradiation from the infrared irradiation device 34. As described above, since the surface of the sheet member 15 is heated while the sheet member 15 is fixed on the sheet member conveying table 11, the surface of the sheet member 15 can be dried while suppressing deformation of the sheet member 15 due to heat.

  In this way, the variation in the landing area of the plurality of nozzles N is adjusted by the infrared irradiation device 34. As a result, variations in the ink landing area at the plurality of nozzles N are corrected. For this reason, it is possible to make the ink landing area uniform in all the nozzles N of the droplet discharge head 5.

  In the present embodiment, in contrast to the conventional method of measuring the weight of ink ejected from a plurality of nozzles, the surface of the sheet member 15 is heated and dried by the infrared irradiation device 34, and the ink in the plurality of nozzles N is dried. A method is used in which the distribution of the ejection amount of the ink ejected from the plurality of nozzles N is obtained based on the landing area. As a result, it is not necessary to measure the weight of the ink as in the conventional case, and a huge number of man-hours are not required.

  In addition, since the surface of the sheet member 15 is subjected to a drying process, variations in the ink landing area on the sheet member 15 are reduced. This is because the surface of the sheet member 15 is heated and dried to make the permeability of the surface of the sheet member 15 uniform. Hereinafter, the permeability of the sheet member 15 to the ink will be described with reference to the state of the ink receiving layer of the sheet member 15 before and after moisture absorption.

  FIG. 5 is a diagram illustrating the state of the ink receiving layer of the sheet member 15 before and after moisture absorption. FIG. 5A is a diagram illustrating a state of the ink receiving layer 50a before moisture absorption. FIG. 5B shows the state of the ink receiving layer 50b after moisture absorption.

  As shown in FIGS. 5A and 5B, the ink receiving layers 50 a and 50 b include a plurality of pigments 51 and binders 52. The pigment 51 is included in the binder 52. The ink receiving layers 50 a and 50 b have a porous structure having a large number of voids 53 between the plurality of binders 52. In the ink receiving layer 50b, the size of the gap 53 is smaller than that of the ink receiving layer 50a. This is because the pigment 51 and the binder 52 constituting the ink receiving layer expand due to moisture absorption.

  Examples of pigments that can be used in the porous ink receiving layer include light calcium carbonate, heavy calcium carbonate, magnesium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc sulfide, zinc carbonate, White inorganic such as satin white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate, synthetic amorphous silica, colloidal silica, alumina, hydrated alumina, aluminum hydroxide, lithopone, zeolite, hydrohalosite, magnesium hydroxide Examples thereof include organic pigments such as pigments, styrene plastic pigments, acrylic plastic pigments, polyethylene, microcapsules, urea resins, and melamine resins. In the ink receiving layer, one of these may be contained alone, or two or more thereof may be used in combination.

  The binder contained in the ink receiving layer as the binder for the pigment may contain a water-soluble or water-insoluble polymer compound having affinity with the ink. Examples of the water-soluble polymer compound include cellulose-based adhesives such as methylcellulose, methylhydroxyethylcellulose, methylhydroxypropylcellulose, and hydroxyethylcellulose, starch and modified products thereof, gelatin and modified products thereof, casein, pullulan, gum arabic, And natural polymer resins such as albumin or derivatives thereof, polyvinyl alcohol and modified products thereof, styrene-butadiene copolymer, styrene-acrylic copolymer, methyl methacrylate-butadiene copolymer, ethylene-vinyl acetate copolymer, etc. Latex, emulsions, vinyl polymers such as polyacrylamide and polyvinylpyrrolidone, polyethyleneimine, polypropylene glycol, polyethylene glycol, and maleic anhydride Coalescence, and the like.

  Examples of the water-insoluble polymer compound include water-insoluble adhesives that dissolve in alcohols such as ethanol and 2-propanol and mixed solvents of these alcohols and water. Examples of such a water-insoluble adhesive include acetal resins such as vinylpyrrolidone / vinyl acetate copolymer, polyvinyl butyral, and polyvinyl formal.

  Incidentally, the sheet member 15 is generally stored in a predetermined atmosphere so that moisture does not penetrate into the ink receiving layer. However, since the pigment 51 and the binder 52 constituting the ink receiving layer have good hygroscopicity, the pigment 51 and the binder 52 in the air from storage to use (for example, ink landing process) The permeability of the surface of the sheet member 15 becomes non-uniform due to the penetration of moisture. If the permeability of the surface of the sheet member 15 is not uniform, it may cause a problem in the measurement of the ink landing area on the sheet member 15.

  Therefore, in the droplet discharge device 1 of the present invention, before the ink is landed, the surface of the sheet member 15 is preliminarily dried by heating, and a plurality of the plurality of binders 52 constituting the ink receiving layer are present. By making the size of the gap 53 uniform overall, the surface permeability is made uniform. This makes it possible to accurately measure the ink landing area on the sheet member 15. Further, high controllability can be obtained in the subsequent adjustment of the ink discharge amount. That is, the variation in the landing area of the ink that has occurred between the plurality of nozzles N in the initial state (before correction) in FIG. 6A can be approximately averaged as shown after correction in FIG. .

  Next, a voltage is applied to the drive element PZ to land the ink on the sheet member 15 (step S3 in FIG. 4). Specifically, the sheet member conveyance table 11 is moved in the X-axis direction toward the work stage 16 and is disposed immediately below the droplet discharge head 5. As a result, the sheet member 15 on the sheet member conveyance table 11 is disposed so as to face the plurality of nozzles N of the droplet discharge head 5. Then, the voltage applied to the drive element PZ is made constant, and ink is landed on the sheet member 15. The ink is preferably landed in an appropriate arrangement form such as a stripe arrangement, a delta arrangement, or a mosaic arrangement in accordance with the color filter layer CF. Thereby, the ink ejection state before correction (when ejecting to the sheet member 15) and the ink ejection state after correction (when ejecting to the color filter substrate P) at the plurality of nozzles N of the droplet ejection head 5 , Will ensure alignment.

  At this time, the ink is landed on the sheet member 15 while the surface of the sheet member 15 is heated and dried by the infrared irradiation device 34. As a result, the ink that has landed on the sheet member 15 dries before spreading, so that the ink landing diameter is reduced, and accordingly, the variation in the ink landing area on the sheet member 15 is also reduced.

  In addition, when the ink is landed on the sheet member 15, it is preferable to land the ink in a plurality of times. Specifically, first, the first ink is landed on a predetermined area on the sheet member 15. Next, the second ink is landed on a region where the first ink is not landed. Thereby, since ink can be repeatedly landed on the sheet member 15 a plurality of times, the sheet member 15 can be used effectively without waste.

  Next, the landing area of the ink that has landed on the sheet member 15 is measured, and the distribution of the ink discharge amount at the plurality of nozzles N is obtained based on the obtained measurement data of the landing area (step S4 in FIG. 4). Specifically, the area of the ink discharged from the plurality of nozzles N to the sheet member 15 is photographed by the area measurement camera 14 disposed at a position facing the upper surface of the sheet member 15. At this time, the magnification of the lens of the area measurement camera 14 is preferably set to 4 to 10 times, for example, in terms of measurement accuracy and measurement time. Further, the N number for measuring the ink landing area is preferably set to N = 20 to 30 from the viewpoint of measurement accuracy.

  The ink landing area image data photographed by the area measurement camera 14 is output to the analysis unit 32. Then, the ink landing area at the plurality of nozzles N is measured by the analysis unit 32, and the distribution of the ink discharge amount at the plurality of nozzles N is obtained based on the measurement data of the landing area. The distribution data of the ink discharge amount at the plurality of nozzles N is output to the control unit 31.

  Next, the sheet member 15 is wound up (step S5 in FIG. 4). Specifically, the sheet member 15 on which ink is landed is taken up by the take-up reel 13. That is, a new sheet member 15 that is not landed with ink is supplied from the supply reel 12.

  Next, the voltage applied to the drive element PZ is adjusted (step S6 in FIG. 4). Specifically, the voltage applied to the drive element PZ provided for each of the plurality of nozzles N is adjusted by the control unit 31 so that the ink discharge amount at the plurality of nozzles N approaches a predetermined appropriate amount.

  FIG. 7 is a diagram illustrating the ejection characteristics of the droplet ejection head before and after correcting the variation in the ink ejection amount. In FIG. 7, the horizontal axis indicates the nozzle numbers 1 to 180 of the nozzle array NA, and the vertical axis indicates the discharge amount of the nozzle corresponding to each nozzle number. As shown in FIG. 7, when the solid line before the correction of the variation in the ink discharge amount is seen, it can be seen that the ink discharge amount tends to be relatively large at the nozzles at both ends and the central portion.

  For example, a predetermined voltage is applied to the drive element PZ corresponding to the nozzle in the region where the ink ejection amount is relatively small in the initial state (see the solid line before correction in FIG. 7). On the other hand, no voltage is applied to the drive element PZ corresponding to the nozzle in the region where the ink discharge amount is relatively large in the initial state.

  In this way, the variation in the discharge amount generated between the plurality of nozzles N is adjusted by the drive element PZ. As a result, the variation in the ink ejection amount among the plurality of nozzles N is corrected. That is, the variation in the ink discharge amount that has occurred between the plurality of nozzles N in the initial state (solid line before correction) can be approximately averaged as indicated by the solid line after correction.

  According to the droplet discharge device 1 of the present embodiment, the sheet member 15 is fixed on the sheet member conveyance table 11 by the vacuum chuck 51. And the surface of the sheet | seat member 15 fixed on the sheet | seat member conveyance stand 11 by the infrared irradiation apparatus 34 is heated, and is dried. The area measurement camera 14 captures an image on which the ink ejected from the plurality of nozzles N has landed. Then, based on the landing area of the ink ejected from the plurality of nozzles N by the analysis unit 32, the distribution of the ejection amount of the ink ejected from the plurality of nozzles N is obtained. Then, the voltage applied to the drive element PZ by the control unit 32 is adjusted so that the ink discharge amount at the plurality of nozzles N approaches a predetermined appropriate amount. That is, the control unit 31 corrects the variation in the ink discharge amount of the plurality of nozzles N. For this reason, it is possible to discharge a uniform amount of ink from all the nozzles N of the droplet discharge head 5. Further, since the surface of the sheet member 15 is heated while the sheet member 15 is fixed on the sheet member conveyance table 11, the surface of the sheet member 15 can be dried while suppressing deformation of the sheet member 15 due to heat. Since the surface of the sheet member 15 is dried, the variation in the ink landing area on the sheet member 15 is reduced. That is, the surface of the sheet member 15 has a predetermined permeability to the ink, and the permeability should be controlled uniformly. The ink landing process), the surface permeability becomes non-uniform for some reason (for example, the penetration of moisture in the air by the ink receiving layer on the surface of the sheet member 15). This causes a problem in the measurement of the landing area. Therefore, in the droplet discharge device 1 of the present invention, before the ink is landed, the surface of the sheet member 15 is previously dried by heating to make the surface permeability uniform. This makes it possible to accurately measure the ink landing area on the sheet member 15. Further, high controllability can be obtained in the subsequent adjustment of the ink discharge amount. For this reason, it is possible to make the ink landing area uniform in all the nozzles N of the droplet discharge head 5. Accordingly, it is possible to suppress the deterioration of the image quality by making the stripes inconspicuous. In addition, the surface of the sheet member 15 is heated and dried by the infrared irradiation device 34, and the distribution of the ejection amount of the ink ejected from the plurality of nozzles N is obtained based on the landing area of the ink at the plurality of nozzles N. Compared with the conventional method of measuring the weight of ink ejected from a plurality of nozzles, it does not require an enormous number of man-hours, and is excellent in production efficiency. Further, since the sheet member 15 on which the ink ejected from the plurality of nozzles N has been landed is appropriately transported, the landed area can be measured efficiently.

  According to this configuration, since the sheet member 15 has the porous ink receiving layer in which the pigment 51 is bound by the binder 52, a significantly uniform amount of ink from all the nozzles N of the droplet discharge head 5. Are ejected, and the ink landing area in all the nozzles N is remarkably made uniform. In particular, when the sheet member 15 has a porous ink receiving layer, the gap 53 of the ink receiving layer is buried by moisture absorption, and the size of the gap 53 is likely to be uneven. Since the permeability of the surface should be controlled uniformly, there is a remarkable effect.

  According to this configuration, since the vacuum chuck 51 having the plurality of suction holes 51 a is provided, the sheet member 15 is sucked by the plurality of suction holes 51 a and is securely fixed on the sheet member transport table 11. Further, by heating the surface of the sheet member 15 while securely fixing the sheet member 15 on the sheet member conveyance table 11, the surface of the sheet member 15 can be dried while reliably suppressing deformation due to heat of the sheet member 15. . Therefore, since the surface of the sheet member 15 is dried, the variation in the ink landing area on the sheet member 15 is significantly reduced.

  According to the droplet discharge method of the present embodiment, the surface of the sheet member 15 is dried while suppressing the deformation of the sheet member 15 due to heat in the first drying process, so that the variation of the ink landing area on the sheet member 15 is varied. Becomes smaller. Then, the distribution of the ink ejection amount at the plurality of nozzles N is obtained by the first analysis step after the first landing step. In the first control step, the ink discharge amount at the plurality of nozzles N is adjusted to approach a predetermined appropriate amount. As a result, the variation in the ink discharge amount among the plurality of nozzles N is corrected. For this reason, it is possible to discharge a uniform amount of ink from all the nozzles N of the droplet discharge head 5 and to uniformize the ink landing area at all the nozzles N. Accordingly, it is possible to suppress the deterioration of the image quality by making the stripes inconspicuous.

  According to the droplet discharge method of the present embodiment, since the first landing process is performed while heating and drying the sheet member 15, the ink landed on the sheet member 15 is dried before wetting and spreading. The impact diameter becomes smaller. As the ink landing diameter decreases, the variation in the ink landing area on the sheet member 15 decreases. Therefore, it is possible to remarkably uniform the ink landing area in all the nozzles N.

  In the above droplet discharge method, after the first control step, a second drying process step of heating and drying the surface of the sheet member 15 while fixing the sheet member 15 on the sheet member transport table 11; After the second drying treatment step, a second landing step for landing ink on the sheet member 15, and after the second landing step, a second landing area of ink landed on the sheet member 15 is measured, and a plurality of nozzles N A second analysis step of obtaining a distribution of the ejection amount of the ink ejected from the nozzle, and adjusting a voltage applied to the plurality of drive elements PZ so that the ink ejection amount at the plurality of nozzles N approaches a predetermined appropriate amount from the distribution. You may have a 2nd control process at least once.

  According to this manufacturing method, after the first control process, the drying process, the landing process, the analysis process, and the control process are repeatedly performed a plurality of times, thereby causing variations in the ink discharge amount among the plurality of nozzles N and the plurality of processes. Variation in the landing area of the nozzle N is reliably adjusted. For this reason, it is possible to discharge a substantially uniform amount of ink from all the nozzles N of the droplet discharge head 5 and to make the ink landing area in all the nozzles N extremely uniform. Therefore, it is possible to make the unevenness more inconspicuous and to suppress the deterioration of the image quality.

  In the droplet discharge method, the ink that is landed in the second landing process is also arranged in an appropriate arrangement form in the same manner as in the first landing process (step S3 in FIG. 4), following the color filter layer CF. It ’s better to land. Thereby, the ejection state before correction in the plurality of nozzles N of the droplet ejection head 5 and the ejection state after correction are surely matched.

  In the droplet discharge method, it is preferable that the second landing process is performed while heating and drying the sheet member 15 as in the first landing process (step S3 in FIG. 4). As a result, the ink that has landed on the sheet member 15 dries before spreading, so that the ink landing diameter is reduced, and accordingly, the variation in the ink landing area on the sheet member 15 is also reduced.

(Second embodiment)
FIG. 8 is a schematic diagram showing a schematic configuration of a droplet discharge device 2 according to the second embodiment of the present invention. The droplet discharge device 2 of the present embodiment is different from the droplet discharge device 1 described in the first embodiment in that the fixing means is a pressing device 62 and the heating means is a heater 34A. Since the other points are the same as in the first embodiment, the same elements as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

  The pressing device 62 is disposed on the sheet member conveyance table 11 as means for fixing the sheet member 15 on the sheet member conveyance table 11. The pressing device 62 includes a pressing portion 62a having a rectangular frame shape in plan view. The pressing device 62 is movable in the Z-axis direction by a pressing device moving mechanism (not shown). By the pressing device 62, the surface (surface) on the ink landing side of the sheet member 15 is pressed and fixed onto the sheet member conveyance table 11. At this time, the pressing device 62 is disposed so as to suppress a region of the sheet member 15 on the sheet member conveyance table 11 where the ink does not land.

  The heater 34 </ b> A is accommodated inside the sheet member conveyance table 11. The heater 34 </ b> A uses the heat conduction from the sheet member conveyance table 11 to heat the sheet member 15 on the sheet member conveyance table 11 so as to adjust the permeability of the sheet member 15 with respect to the ink. The heater 34 </ b> A having a function to be performed is electrically connected to the control unit 31 through the fourth wiring 44.

  According to the droplet discharge device 2 of the present embodiment, since the sheet member 15 is pressed by the pressing device 62, it is securely fixed on the sheet member transport table 11. Further, by heating the surface of the sheet member 15 while securely fixing the sheet member 15 on the sheet member conveyance table 11, the surface of the sheet member 15 can be dried while reliably suppressing deformation due to heat of the sheet member 15. . Further, the configuration including the pressing device 62 as the fixing means can ensure the flatness of the sheet member 15 as compared with the configuration including the vacuum chuck 61 described above. Therefore, since the surface of the sheet member 15 is dried and the flatness of the sheet member 15 is ensured, the variation in the ink landing area on the sheet member 15 is significantly reduced.

  In addition, in this embodiment, although the shape of the holding | suppressing part 62a which comprises the pressing apparatus 62 has shown the example of planar view rectangular frame shape, it is not restricted to this. For example, the shape of the pressing portion 62a may be an annular shape in plan view. That is, the shape of the pressing portion 62a may be any shape that can hold at least a region of the sheet member 15 where the ink does not land.

  Further, according to the color filter manufacturing method of the present invention, as described above, a uniform amount of ink is ejected from all nozzles of the droplet ejection head, and the ink landing area at all nozzles is made uniform. It is possible to produce a high-quality color filter without streaking.

  In the above-described embodiment, the case where the color filter is manufactured using the droplet discharge device in which the variation in the landing area of the ink between the nozzles is adjusted has been described. However, the present invention is not limited to this. For example, the droplet discharge device of the present invention can be applied not only to the production of a color filter but also to a film formation process in which uniform film thickness is required and formation of stripes is a problem.

DESCRIPTION OF SYMBOLS 1 ... Droplet discharge apparatus, 5 ... Droplet discharge head, 11 ... Sheet member conveyance stand (support body), 12 ... Supply reel, 13 ... Take-up reel, 14 ... Area measurement camera (imaging device), 15 ... Sheet Members 31 ... control unit (control means) 32 ... analysis unit (analysis means) 34 ... infrared irradiation device 50a, 50b ... ink receiving layer 51 ... pigment 52 ... binder 61 ... vacuum chuck (fixing means) , 61a ... Suction hole, 62 ... Pressing device (fixing means), 62a ... Presser, CF ... Color filter layer (color filter), N ... Nozzle, P ... Color filter substrate (base material), PZ ... Drive element

Claims (8)

  1. A droplet discharge head having a plurality of nozzles for discharging a functional liquid, and a plurality of drive elements provided corresponding to the plurality of nozzles;
    A supply reel for supplying a sheet member for landing the functional liquid discharged from the plurality of nozzles;
    A take-up reel that winds up the sheet member supplied from the supply reel;
    Fixing means for fixing the sheet member supplied from the supply reel on a support;
    Heating means for heating and drying the surface of the sheet member fixed on the support by the fixing means;
    An imaging device that captures images of the functional liquid ejected from the plurality of nozzles on the sheet member between the supply reel and the take-up reel dried by the heating unit;
    Analysis means for measuring the landing area of the functional liquid on the sheet member by performing image processing on the image photographed by the imaging device, and obtaining a distribution of the ejection amount of the functional liquid ejected from the plurality of nozzles; ,
    And a control means for adjusting a voltage applied to the plurality of drive elements so that the discharge amount of the plurality of nozzles approaches a predetermined appropriate amount from the distribution.
  2.   The droplet discharge device according to claim 1, wherein the sheet member includes a porous ink receiving layer in which a pigment is bound with a binder.
  3.   3. The droplet discharge device according to claim 1, wherein the fixing unit has a plurality of suction holes for sucking a surface of the sheet member opposite to a side on which the functional liquid is landed.
  4.   3. The droplet discharge device according to claim 1, wherein the fixing unit includes a pressing portion that presses a region where the functional liquid does not land on the sheet member.
  5. A droplet discharge method using a droplet discharge head having a plurality of nozzles for discharging a functional liquid and a plurality of drive elements provided corresponding to the plurality of nozzles,
    A first drying process for heating and drying the surface of the sheet member while fixing the sheet member on a support;
    A first landing step of landing the functional liquid on a sheet member after the first drying treatment step;
    A first analysis step of measuring a first landing area of the functional liquid landed on the sheet member after the first landing step and obtaining a distribution of a discharge amount of the functional liquid discharged from the plurality of nozzles; ,
    And a first control step of adjusting a voltage to be applied to the plurality of drive elements so that the discharge amount at the plurality of nozzles approaches a predetermined appropriate amount from the distribution.
  6.   The droplet discharging method according to claim 5, wherein the first landing step is performed while heating and drying the sheet member.
  7. After the first control step, a second drying treatment step of heating and drying the surface of the sheet member while fixing the sheet member on the support,
    A second landing step of landing the functional liquid on a sheet member after the second drying treatment step;
    A second analysis step of measuring a second landing area of the functional liquid landed on the sheet member after the second landing step and obtaining a distribution of a discharge amount of the functional liquid discharged from the plurality of nozzles; ,
    2. A second control step of adjusting a voltage applied to the plurality of drive elements so that the discharge amount of the plurality of nozzles approaches a predetermined appropriate amount from the distribution, at least once. The droplet discharge method according to 5 or 6.
  8.   A color filter, wherein the functional liquid is disposed in a predetermined region provided on a substrate using the droplet discharge method according to claim 5. Manufacturing method.
JP2009050331A 2009-03-04 2009-03-04 Liquid drop discharge device, liquid drop discharge method, and method of manufacturing color filter Withdrawn JP2010204414A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07306311A (en) * 1994-05-12 1995-11-21 Asahi Glass Co Ltd Substrate provided with color filter and liquid crystal display element using the substrate
JP2000105309A (en) * 1998-07-30 2000-04-11 Canon Inc Color filter production apparatus, production of color filter and liquid crystal element
JP2006058772A (en) * 2004-08-23 2006-03-02 Ishii Hyoki Corp Method for forming alignment layer and ink-jet type print head jetting inspection apparatus
JP2007210167A (en) * 2006-02-08 2007-08-23 Toshiba Corp Method for curing photo-curable ink and inkjet recording apparatus
JP2008229602A (en) * 2007-02-22 2008-10-02 Seiko Epson Corp Discharge amount-measuring method, discharge amount-adjusting method, liquid-discharging method, color filter-manufacturing method, liquid crystal display device-manufacturing method, and electro-optical device-manufactruing method
JP2008264608A (en) * 2007-04-16 2008-11-06 Shibaura Mechatronics Corp Liquid droplet coating apparatus and liquid droplet coating method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07306311A (en) * 1994-05-12 1995-11-21 Asahi Glass Co Ltd Substrate provided with color filter and liquid crystal display element using the substrate
JP2000105309A (en) * 1998-07-30 2000-04-11 Canon Inc Color filter production apparatus, production of color filter and liquid crystal element
JP2006058772A (en) * 2004-08-23 2006-03-02 Ishii Hyoki Corp Method for forming alignment layer and ink-jet type print head jetting inspection apparatus
JP2007210167A (en) * 2006-02-08 2007-08-23 Toshiba Corp Method for curing photo-curable ink and inkjet recording apparatus
JP2008229602A (en) * 2007-02-22 2008-10-02 Seiko Epson Corp Discharge amount-measuring method, discharge amount-adjusting method, liquid-discharging method, color filter-manufacturing method, liquid crystal display device-manufacturing method, and electro-optical device-manufactruing method
JP2008264608A (en) * 2007-04-16 2008-11-06 Shibaura Mechatronics Corp Liquid droplet coating apparatus and liquid droplet coating method

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