JP4539124B2 - Pattern forming method and pattern forming apparatus - Google Patents

Description

  The present invention relates to a method of forming a composite pattern having a combination portion formed by combining repetition of fine patterns such as a color filter used in a liquid crystal display device, and the forming apparatus.

  Conventionally, a photolithographic method using a photoresist material is used to manufacture a color filter for a liquid crystal display device. However, since the photoresist material, which is a pixel material, is provided by spin coating, there are many surplus portions. There is a problem that this photoresist material cannot be used economically. In addition, since each color is subjected to processes such as exposure and development, the overall work efficiency is low, and various devices such as an exposure apparatus and a development apparatus are required, which makes it impossible to reduce costs. There is also.

Therefore, in recent years, there are attempts to obtain this color filter by a printing method. For example, when a pattern is obtained with four pattern constituent colors of black, red, green, and blue, an intaglio or lithographic printing plate is prepared for each pattern constituent color, and a roller for each pattern constituent color is prepared from the plate. A colored resin composition (for example, color ink) is transferred to each of the rollers, and the pattern is transferred to each roller. Further, with each pattern as a reference, each pattern constituting color does not overlap with red, then green, and blue. There is a method of transferring to a substrate.
In addition, for each pattern constituent color pattern, a relief plate having a convex portion as a negative pattern of the pattern is prepared, and the colored resin composition of the pattern constituent color is applied to the roller for each pattern constituent color at a constant thickness. Is pressed onto the relief plate corresponding to the pattern constituent color, and the colored resin composition corresponding to the negative pattern is transferred and removed at the convex portion of the relief plate, thereby forming the desired pattern on the roller for each pattern constituent color. Then, the pattern as a color filter is formed by sequentially transferring these patterns to the substrate with black as a reference in the same manner as described above, so that the respective color components of red, then green, and blue do not overlap each other. Has been proposed (see, for example, Patent Document 1).
JP 11-058921 A (paragraph number 0008, FIG. 1)

The production of the color filter by the printing method described above does not require an exposure device or a developing device as compared with the photolithographic method, and thus the production cost can be easily reduced. In addition, there is an advantage that the thickness of the color material of the pattern is simple.
However, with the printing method described above (a method of removing surplus portions with a relief printing plate), a plate having the same shape pattern is created for each pattern constituent color, and these are arranged in series in the moving direction of a plurality of rollers. Therefore, there is an inconvenience that the printing apparatus is increased in size. Also, plates with the same shape pattern will be created for each pattern constituent color, but the pitch of each part of the ink receiving part constituting the pattern in each plate can be made the same between the plates. It is very difficult. Therefore, when patterns formed with different plates for each pattern constituent color are combined on a substrate with one reference, that is, black as a reference, the pitch deviation cannot be corrected and the composite pattern as a filter becomes defective. There is a problem that it is easy. For example, when a part of the pattern of one color is misaligned and a part of the pattern is shifted and white spots are generated at that part. Thus, there is a case where an overlap with a pattern of another color is caused beyond the black portion at that portion. Such a problem occurs not only in the case of a color filter for a liquid crystal display device but also when a composite pattern having a portion combining a plurality of patterns having different pattern constituent materials and the same pattern shape is formed by a printing method. Met.
Therefore, in view of the above circumstances, the present invention has an object to form a plurality of patterns having the same pattern shape and different pattern constituent materials without misalignment by a plate, and a plurality of patterns for each pattern constituent material made of the plate. Is intended to form a good composite pattern by easily transferring the position of the substrate with respect to the reference on the substrate.

The present invention has been made in consideration of the above problems, and has a combination portion of patterns having the same pattern shape by transferring a plurality of patterns made of coating liquids having different pattern constituent colors to a substrate through a coating roller. When a composite pattern is formed on the substrate, a coating roller for supplying a coating liquid of a pattern constituent color from the coating liquid supply unit is provided for each of the pattern constituent colors, and application of a pattern constituent color of a pattern having the same pattern shape the application roller the liquid is applied, by rolling while pressing the letterpress having a convex portion and a negative pattern shape identical the pattern, the transition of the coating solution to the convex portion of the relief plate or applying roller Raney and transferring removing step of transferring removing a coating solution Gapatan, a transfer step of transferring a pattern by coating liquid application roller that has passed through the transfer step of removing said substrate In the pattern forming method comprising,
The plurality of application rollers coated with a coating liquid having a pattern constituting color having the same pattern shape is applied to the one relief plate in sequence, and each of the plurality of application rollers is applied by the one relief plate. A method of transferring and removing a negative pattern coating solution and aligning any one of the one relief plate, the plurality of coating rollers, and the substrate to form the composite pattern. The present invention provides a pattern forming method that removes the coating liquid transferred to the convex portions of the relief plate every time the process is completed, thereby solving the above-mentioned problems.

And in the said invention, the application roller by which the coating liquid of the pattern constituent color of patterns other than the said combination part was pressed to the relief plate which has the convex part made into the negative pattern of patterns other than the said combination part, and this relief plate Thus, it is possible to transfer and remove the negative pattern coating liquid from the coating roller, and to transfer the pattern of the coating roller from which the negative pattern coating liquid has been transferred and transferred to the substrate.
Further, the convex portion of the letterpress was position if the relief plate to correspond to a portion for transferring removing a coating liquid application roller, it is possible to performs each said transfer step of removing the coating roller.
Further, it is preferable that the coating solution supply means supplies the coating solution at a constant thickness.
In addition, it is preferable to remove the coating liquid for the relief printing by washing the relief printing and drying the washed relief printing.

According to yet another aspect of the present invention, a plurality of patterns made of coating liquids having different pattern constituent colors are transferred to a substrate through a coating roller, and a composite pattern having a combination portion of patterns having the same pattern shape is formed on the substrate. A pattern forming apparatus that performs
A plurality of application rollers that correspond to each pattern constituent color that makes the pattern shape the same, and are movable,
A coating solution supply means for supplying a coating solution of a pattern constituting color corresponding to the coating roller to the coating roller;
The projection roller, which is located in the moving direction of the coating roller, has a convex portion as a negative pattern of the pattern, and the negative portion is brought into contact with the coating roller having the coating liquid supplied from the coating liquid supply means. One relief printing plate that forms a pattern in which the coating liquid is left on each of the coating rollers so as to correspond to the position of the pattern of the combination part by transferring and removing the coating liquid of the pattern;
Position adjusting means for adjusting the position of any one of the one relief plate, the plurality of application rollers, and the substrate so as to form the composite pattern;
A letterpress residual coating liquid removing device that is disposed corresponding to each of the coating rollers, and removes the coating liquid from the letterpress for each transfer removal by the letterpress;
The relief printing liquid removing device is disposed corresponding to each application roller, and is provided so as to be movable integrally with the application roller. The relief plate application liquid removing device is slidably brought into contact with the relief plate by movement together with the application roller. A pattern forming apparatus characterized in that the liquid is removed, and this pattern forming apparatus is provided to solve the above-mentioned problems.

And in the said invention, application | coating roller corresponding to the pattern constituent color of patterns other than the said combination part, and the application which supplies the coating liquid of the pattern constituent color of patterns other than the combination part which this application roller respond | corresponds to the said application roller The negative pattern coating liquid is transferred and removed by contact between the liquid supply means and a convex portion that is a negative pattern of the pattern, and the convex roller and the application roller having the coating liquid supplied from the coating liquid supply means. Thus, it is possible to have one relief plate that forms a pattern formed by leaving the coating liquid on the coating roller so as to correspond to the position of the pattern other than the combination portion.
Further, it is possible to provide a relief position adjusting means for positioning the relief plate so that the convex portion of the relief plate corresponds to a portion where the coating liquid of the application roller is transferred and removed.
Moreover, it is possible to have a constant thickness coating liquid supply unit as the coating liquid supply means.
In addition , it is preferable that the relief printing liquid removing apparatus includes a cleaning unit and a drying unit.

  According to the pattern forming method of the present invention, the coating liquid provided to each coating roller for each pattern constituent color is transferred and removed by one relief plate, and each pattern is formed. Therefore, the pattern formed on the coating roller When these patterns are combined on the substrate, the shapes can be transferred in a uniform shape, and the pattern shapes are the same, and the combined parts of multiple patterns are properly formed. It is possible to produce an effect excellent in practicality.

  Then, the coating roller applied with the coating liquid of the pattern constituent color of the pattern other than the combination portion is pressed against the relief plate having the convex portion as the negative pattern of the pattern other than the combination portion, and from the application roller by this relief printing plate Transfer and remove the negative pattern coating solution, and transfer the pattern of the coating roll from which the negative pattern coating solution has been transferred to the substrate, so that multiple shapes that make up the combination part and patterns other than the combination part It becomes possible to form a composite pattern comprising these patterns without increasing the number of relief plates.

  Further, the alignment of the relief plate corresponding to the portion of the application roller where the coating liquid of the application roller is transferred and removed, and the removal of the application liquid transferred to the convex portion of the relief plate are transferred for each transfer removal process of the application roller. By doing so, the coating roller can be pressed against the relief plate that is always in a clean state, and the transfer and removal of the coating liquid at the negative pattern portion can be performed more reliably.

  In addition, the coating liquid supply means supplies the coating liquid at a constant thickness, so that the negative pattern can be transferred and removed properly by the relief printing, the film thickness of the coating liquid transferred to the substrate becomes uniform, and color unevenness is further improved. It can be surely prevented.

  Moreover, the application liquid of the relief printing plate is removed by washing the relief printing plate and drying the washed relief printing plate, so that the application roller can be pressed against the always clean relief printing plate. Removal can be performed more reliably.

  Further, according to the pattern forming apparatus of the present invention, the coating liquid of each coating roller for each pattern constituent color is transferred and removed by one relief plate, so that the pattern is formed. When these patterns are combined on the substrate, they can be transferred in a state where the positional relationship between the patterns is uniform. And since the pattern shape is the same, the combination part of a some pattern can be formed appropriately. In addition, since the same pattern is formed on each application roller by transferring and removing the application liquid with one letterpress, there is no need to provide a letterpress corresponding to each color application roller, and an apparatus that corresponds to each color application roller. Compared to the above, the pattern forming apparatus can have a simple structure.

  Further, in this pattern forming apparatus, in order to obtain a pattern other than the combination portion, an application roller corresponding to the pattern constituent color, an application liquid supply means for supplying an application liquid to the application roller, and a negative pattern of the pattern are used. By having a convex part and transferring and removing the negative pattern coating liquid by contact with this convex part, it has one relief plate that forms a pattern formed by leaving the coating liquid on the coating roller. Thus, it is possible to form a composite pattern composed of a plurality of patterns having the same shape constituting the combination part and patterns other than the combination part without increasing the number of relief plates.

  Further, in the present pattern forming apparatus, by providing a relief position adjusting means for positioning the relief plate so that the relief portion of the relief plate corresponds to a portion where the coating liquid of the application roller is transferred and removed, alignment on the application roller side is performed. There is no need to perform the above, the mechanism for associating the coating roller with the relief printing plate is simplified, and the structure of the pattern forming apparatus can be simplified.

  Further, in this pattern forming apparatus, by having a constant thickness coating liquid supply unit as the coating liquid supply means, the negative pattern can be transferred and removed properly by the relief printing, and the film thickness of the coating liquid transferred to the substrate Becomes uniform, and color unevenness can be more reliably prevented.

  Further, in this pattern forming apparatus, a relief printing plate that is always clean is provided by being provided corresponding to each coating roller and having a relief printing liquid removing device that removes the coating liquid from the relief plate for each transfer removal of the relief plate. Thus, the application roller can be pressed to transfer the application liquid at the negative pattern portion more reliably. Further, it is possible to shift from the transfer removal process for one application roll to the transfer removal process for the next application roll while keeping the movement directions of the plurality of application rollers the same, thereby simplifying the structure of the pattern forming apparatus. be able to.

  Further, in the present pattern forming apparatus, the relief printing liquid removing device is provided with a cleaning means and a drying means, so that the application roller can be pressed against a clean relief printing plate at all times. The transfer removal of the coating liquid can be performed more reliably.

Next, the present invention will be described with reference to an example in which a color filter for a liquid crystal display device is obtained as a composite pattern.
(Pattern forming device)
In the figure, reference numeral 1 denotes a pattern forming apparatus which forms a composite pattern P as a color filter shown in FIG. This composite pattern P is composed of red, green, and blue (R, G, and B), which are three pattern constituent colors. The composite pattern P is composed of a red pattern constituent color, and a pattern Pr in which stripes are arranged at regular intervals, and a green pattern constituent. Combining a pattern Pg consisting of colors and stripes arranged at regular intervals and a pattern Pb consisting of blue pattern constituent colors and arranging stripes at regular intervals so that the stripes of each pattern are arranged in order at regular intervals, A combination portion P1 is formed, a black pattern constituent color pattern P2 is formed as a portion other than the combination portion P1, and the composite pattern P is formed from these P1 and P2.

As shown in FIG. 1, a pattern forming apparatus 1 for forming a composite pattern P as a color filter includes a coating roller connecting / moving mechanism unit 2, a coating solution supply unit 3, a first coating solution removal unit 4, and a second coating solution removal. It consists of a part 5 and a substrate support part 6.
(Coating roller connecting and moving mechanism)
The application roller connecting and moving mechanism 2 includes an application roller 2BM that receives black ink, an application roller 2R that receives red ink for obtaining the red pattern Pr, and an application roller that receives green ink for obtaining the green pattern Pg. An application roller 2B that receives blue ink for obtaining a 2G and blue pattern Pb is arranged at an interval, and these four application rollers 2BM, 2R, 2G, and 2B are rotatably supported by the stay 20 for application. The four coating rollers 2BM are positioned above the first coating liquid removal unit 4, the second coating liquid removal unit 5 and the substrate support unit 6 which are sequentially set with respect to the standby portion of the roller connecting / moving mechanism unit 2. 2R, 2G, and 2B are provided so that they can move in an integrated state. Further, as shown in the drawing roller connecting / moving mechanism unit 2, the relief printing residual coating liquid is provided on the side of the coating roller moving direction so as to correspond to each of the four coating rollers 2BM, 2R, 2G, 2B. A removing device 7 is arranged, and these are also provided so as to move integrally with the application rollers 2BM, 2R, 2G, and 2B while being supported by the stay 20. The letterpress residual coating solution removing apparatus 7 will be described later.

(Coating liquid supply part)
Ink set to the application rollers 2BM, 2R, 2G, and 2B is supplied to each of the application rollers 2BM, 2R, 2G, and 2B of the application roller connecting and moving mechanism 2 when in the standby position. In order to make it possible, the coating liquid supply unit 3 includes a constant thickness coating liquid supply unit 3BM that supplies black ink, a constant thickness coating liquid supply unit 3R that supplies red ink, and a constant thickness coating liquid supply that supplies green ink. Unit 3G and constant thickness coating liquid supply unit 3B for supplying blue ink are arranged corresponding to coating rollers 2BM, 2R, 2G, and 2B. It is to be applied.

(First coating liquid transfer removal part)
The first coating liquid transfer removing unit 4 is a coating roller 2BM in which black ink is applied at a constant thickness from the constant thickness coating liquid supply units 3BM, 3R, 3G, and 3B in the coating liquid supply unit 3 as a coating liquid supply unit. A coating roller connecting and moving mechanism in which a coating roller 2R coated with a constant thickness of red ink, a coating roller 2G coated with a constant thickness of green ink, and a coating roller 2B coated with a constant thickness of blue ink are integrated. When the part 2 moves laterally, excess coating liquid other than the pattern is applied from the respective coating rollers 2R, 2G, and 2B by contact between the first coating liquid transfer removing unit 4 and the rotating coating rollers 2R, 2G, and 2B. It is intended to be transferred and removed. The first coating liquid transfer removing unit 4 attaches and supports the relief plate position adjusting means 42 with the relief plate 41 having the projections 40 as negative patterns of the patterns Pr, Pg and Pb having the same shape constituting the combination portion P1. It will be.
(Registration of letterpress on coating roller, transfer removal of ink)
In the illustrated embodiment, the moving direction of the application roller connecting / moving mechanism portion 2 is aligned with the longitudinal direction of the stripe formed by the convex portions 40. When the application roller connecting / moving mechanism unit 2 starts to move toward the substrate support unit 6 in the printing direction, the application roller 2BM to which the black ink is first applied is supplied to the first application liquid transfer / removal unit 4. Therefore, in order to avoid contact with the coating roller 2BM, the first coating liquid transfer / removal unit 4 is temporarily lowered, and is fixed when the coating roller 2BM and the subsequent relief printing liquid removal device 7 pass through. It is provided to return to the position. Before the coating roller 2R presses against the relief plate 41 of the first coating liquid transfer / removal section 4 that has returned to the fixed position, the portion of the coating roller 2R where the coating liquid is transferred and removed, that is, the red formed on the coating roller 2R. The letterpress position adjusting means 42 is arranged so that the convex part 40 of the letterpress 41 corresponds to the negative pattern of the pattern Pr (pattern corresponding to the position of the pattern Pr made of red ink set on the substrate support 6 side). Are aligned. This alignment is completed before the application roller 2R is touched, and the application roller 2R rolls while being pressed against the relief plate 41 in this state (rotation synchronized with the movement of the application roller connecting / moving mechanism portion 2), and the relief plate 41 transfers and removes excess coating liquid other than the pattern from the coating roller 2R, whereby a pattern Pr of red ink is formed on the coating roll 2R.
(Removing letterpress remaining coating solution)
When the formation of the pattern Pr with the red ink on the coating roller 2R is completed by the alignment of the relief plate 41 and the transfer and removal of the red ink (end of the red ink transfer and removal process), the coating roller connecting and moving mechanism unit 2 moves. Therefore, the relief printing liquid removing device 7 located at the rear of the coating roller 2R moves while being in sliding contact with the first coating liquid transfer removing unit 4. This letterpress residual coating liquid removal apparatus 7 transfers to the letterpress 41 by forming the pattern Pr and removes the red ink remaining on the letterpress 41 to clean the first coating liquid transfer removal unit 4. As the constitution, for example, cleaning by solvent spraying and solvent suction and drying after the cleaning are performed, and by the sliding contact movement of the relief printing liquid removing device 7, the application roller connecting / moving mechanism unit 2 This red ink removal is performed in the moving direction.

When the removal of the coating liquid with respect to the red ink is completed and the letterpress residual coating liquid removing device 7 at the rear of the coating roller 2R is separated from the first coating liquid transfer removing section 4, the first coating liquid transfer removing section 4 is located at the letterpress position. It is moved by the adjusting means 42 to transfer and remove the coating liquid at the position of the negative pattern from the coating liquid on the peripheral surface of the next coating roller 2G, and by green ink at a position corresponding to the position of the pattern Pg in the combination portion P1. The convex portions 40 of the relief plate 41 are made to correspond so that the pattern Pg is formed by the application roller 2G. That is, as in the case where the pattern Pr with the red ink is formed by the coating roller 2R, the convex portion 40 corresponds to the portion of the coating liquid to be transferred and removed at the position of the negative pattern on the coating roller 2G. The position is adjusted. After the first coating liquid transfer / removal section 4 is positioned, the coating roller 2G presses the relief plate 41, and excess green ink other than the pattern is transferred and removed from the coating roller 2G, and a pattern Pg is formed on the coating roller 2G. The
When the transfer removal process at the application roller 2G is completed, the relief printing liquid removal device 7 located at the rear of the application roller 2G removes the relief plate 41 in the same manner as the process after the transfer removal process of the application roller 2R is completed. The remaining green ink is removed and returned to a clean state.
The above process is also performed when the pattern Pb is formed on the coating roller 2B. In this way, the pattern Pr, Pg, and Pb are sequentially formed on the application rollers 2R, 2G, and 2B by the application roller connecting / moving mechanism unit 2 moving on the first application liquid transfer removing unit 4. It is.

(Formation of black pattern on application roller)
When the formation of the patterns Pr, Pg, and Pb on the application rollers 2R, 2G, and 2B is progressing, the application roller 2BM located at the head in the movement direction of the application roller connecting / moving mechanism unit 2 is the second application liquid transfer removing unit. 5, black pattern formation is performed on the application roller 2BM by the second application liquid transfer removal unit 5.
A pattern P2 is formed on the coating roller 2BM so as to correspond to the black pattern P2 in the composite pattern P in the second coating liquid transfer removing unit 5. Similarly, a relief plate 51 having a convex portion 50 having a negative pattern P2 to be formed with black ink on the application roller 2BM is attached to and supported by the relief plate position adjusting means 52. Then, when the application roller 2BM reaches the second application liquid transfer removal unit 5 by the movement of the application roller connecting / moving mechanism unit 2, the application roller 2BM is pressed against the relief plate 51 and supplied to the application roller 2BM. The black ink at the position of the negative pattern is transferred and removed with the rolling of the coating roller 2BM (rotation synchronized with the movement of the coating roller connecting / moving mechanism unit 2), and the black ink pattern P2 is removed. It is formed on the application roller 2BM. Further, a letterpress residual coating liquid removing device 7 is disposed at the rear of the coating roller 2BM in the same manner as the coating rollers 2R, 2G, and 2B. Is provided so as to remove the black ink remaining on the relief plate 51 in the process of sliding movement (see FIG. 2).
Since the relief plate 51 only needs to be positioned corresponding to the application roller 2BM, the relief plate position adjusting means 52 in the second coating liquid transfer removing unit 5 performs fine adjustment of the relief plate 51 in the horizontal direction and positions it. Is.

(Transfer process)
The substrate support unit 6 is formed by attaching a substrate 60 such as a glass plate as a base material of a color filter to an XYθ-driveable surface plate 61 and positioning it. As described above, the application roller connecting / moving mechanism unit 2 is provided so as to move in the printing direction (left direction in the drawing), and the application roller 2BM having the pattern P2 formed on the peripheral surface reaches first, The pattern P <b> 2 is transferred to the surface of the substrate 60 by rolling while pressing the surface of the substrate 60. When the pattern P2 is transferred, the coating roller 2R subsequently presses the surface of the substrate 60, and the pattern Pr formed on the peripheral surface is transferred to the surface of the substrate 60 while rolling (see FIG. 3). Thereafter, the pattern Pg and Pb are sequentially transferred from the coating roller 2G and the coating roller 2B to the surface of the substrate 60 in accordance with the movement of the coating roller connecting / moving mechanism unit 2 in the printing direction in the same manner. A composite pattern P composed of the patterns Pr, Pg, and Pb in the combination portion P1 of red ink, green ink, and blue ink is formed.

In the transfer process, the patterns in the circumferential direction of the application rollers 2BM, 2R, 2G, and 2B are aligned so that the patterns P2, Pr, Pg, and Pb in the printing movement direction of the substrate support 6 are aligned. The position is adjusted at the time of pattern formation and by the rotation of each coating roll in the transfer process.
Further, when the application roller connecting / moving mechanism unit 2 moves and approaches the substrate support unit 6, the application roller connecting / moving mechanism unit 2 is positioned on the second coating liquid transfer removing unit 5. In order to avoid interference with the coating roller and the relief printing liquid removing device, the second coating liquid transfer removing unit 5 is lowered. Furthermore, in the transfer process to the substrate 60, each relief printing liquid removing device 7 is provided so as to move upward and stand by so as not to interfere with the surface of the substrate 60.

  When the transfer from the rear application roller 2B of the application roller connecting / moving mechanism unit 2 is completed as described above, the application roller connecting / moving mechanism unit 2 returns to the standby position, and the application liquid supply unit 3 applies each application roller to the application roller. On the other hand, ink is applied and supplied. The substrate 60 is replaced when the application roller connecting / moving mechanism unit 2 is in the standby position. When the replacement of the substrate 60 and the supply of ink are completed, the application roller connecting / moving mechanism unit 2 starts moving in the printing direction again. Then, the above-described pattern is formed and transferred to the substrate.

  In the above-described embodiment, the pattern constituting the combination portion P1 has the longitudinal direction of each stripe as the moving direction of the application roller connecting / moving mechanism unit 2, and for the alignment of the relief plate 41 in the first coating liquid transfer removing unit 4 The moving direction is set to a direction orthogonal to the moving direction of the application roller connecting / moving mechanism unit 2. That is, the moving direction of the relief plate 41 in the first coating liquid transfer removing unit 4 is defined as the pattern alignment direction (stripe alignment direction). Further, the arrangement of the convex portions 40 in the first coating liquid transfer removing unit 4 may be the moving direction of the coating roller connecting / moving mechanism unit 2, and the alignment movement in the first coating liquid transfer removing unit 4 in that case The direction is along the direction of movement of the application roller articulation mechanism 2.

  Furthermore, in the above-described embodiment, the letterpress of the first coating liquid transfer / removal unit is moved in order to form a pattern on each coating roller, but it is only necessary to move relative to each coating roller. Therefore, the position of each coating roller may be adjusted so that the pattern formed by the first coating liquid transfer removing unit is the pattern position in the composite pattern for each pattern constituent color. In addition, the position of the substrate itself may be adjusted so that the above-mentioned combination portion composed of a pattern having the same shape may be formed.

  The above embodiment shows an example in which a color filter for a liquid crystal display device is a composite pattern, and the coating liquid is described as ink. However, the present invention is not limited to this, and each pattern emits colored light. It may be a substance. That is, the material forming the pattern constituent color may be an EL material. In addition, the present invention is not limited to those in which the coating solution develops color, and may be a plurality of substances in which each pattern has a different function. The substrate is not limited to a rigid plate such as a glass substrate, but may be a flexible material such as a film.

An example of the pattern formation apparatus which concerns on this invention is shown, and is explanatory drawing which shows a coating liquid supply state. It is explanatory drawing which shows transfer removal of the coating liquid with respect to a coating roller in an example. It is explanatory drawing which shows the transcription | transfer with respect to a board | substrate in an example. It is explanatory drawing which shows a composite pattern.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Pattern formation apparatus 2 ... Application roller connection movement mechanism part 2BM, 2R, 2G, 2B ... Application roller 3 ... Application liquid supply part 3BM, 3R, 3G, 3B ... Constant thickness application liquid supply unit 4 ... 1st application liquid transfer Removal part 40 ... convex part 41 ... letterpress 42 ... letterpress position adjustment means 5 ... second coating liquid transfer removal part 50 ... convex part 51 ... letterpress 52 ... letterpress position adjustment means 6 ... substrate support part 60 ... substrate 7 ... letterpress residual coating Liquid remover P ... Composite pattern Pr ... Red pattern Pg ... Green pattern Pb ... Blue pattern P1 ... Combination part P2 ... Black pattern

Claims (10)

When a plurality of patterns made of coating liquids having different pattern constituent colors are transferred to a substrate via a coating roller, and a composite pattern having a combination portion of the same pattern shape is formed on the substrate, a coating liquid supply means The application roller to which the application liquid of the pattern constituent color is supplied for each of the pattern constituent colors, and the application roller to which the application liquid of the pattern constituent color of the pattern having the same pattern shape is applied is the same pattern. the negative pattern and the by rolls while pressed against the relief plate having a convex portion, a transfer removal step of transferring removing a coating solution of the coating roller or Raney Gapatan by transfer of the coating solution to the convex portion of the relief plate, the In a pattern forming method comprising a transfer step of transferring a pattern formed by a coating liquid of a coating roller that has undergone a transfer removal step to the substrate,
The plurality of application rollers coated with a coating liquid having a pattern constituting color having the same pattern shape is applied to the one relief plate in sequence, and each of the plurality of application rollers is applied by the one relief plate. A method of transferring and removing a negative pattern coating solution and aligning any one of the one relief plate, the plurality of coating rollers, and the substrate to form the composite pattern. Each time the process is completed, the pattern forming method is characterized in that the coating liquid transferred to the convex portions of the relief printing plate is removed.   The application roller coated with the coating liquid of the pattern constituent color of the pattern other than the combination portion is pressed against the relief plate having the convex portion which is a negative pattern of the pattern other than the combination portion, and the negative is removed from the application roller by the relief printing plate. The pattern forming method according to claim 1, wherein the pattern coating liquid is transferred and removed, and the pattern of the coating roller from which the negative pattern coating liquid is transferred and removed is transferred to the substrate. Patterning according convex portion of the letterpress was position if the relief plate to correspond to the coating liquid a portion transcription removal of the application roller, to claim 1 or 2 and performs for each of the transfer process of removing the application roller Method.   The pattern forming method according to claim 1, wherein the coating liquid supply unit supplies the coating liquid at a constant thickness.   5. The pattern forming method according to claim 3, wherein the removal of the relief printing liquid is performed by washing the relief and drying the washed relief. 6. A pattern forming apparatus for transferring a plurality of patterns made of coating liquids having different pattern constituent colors to a substrate via a coating roller to form a composite pattern having a combination portion of patterns having the same pattern shape on the substrate. ,
A plurality of application rollers that correspond to each pattern constituent color that makes the pattern shape the same, and are movable,
A coating solution supply means for supplying a coating solution of a pattern constituting color corresponding to the coating roller to the coating roller;
The projection roller, which is located in the moving direction of the coating roller, has a convex portion as a negative pattern of the pattern, and the negative portion is brought into contact with the coating roller having the coating liquid supplied from the coating liquid supply means. One relief printing plate that forms a pattern in which the coating liquid is left on each of the coating rollers so as to correspond to the position of the pattern of the combination part by transferring and removing the coating liquid of the pattern;
Position adjusting means for adjusting the position of any one of the one relief plate, the plurality of application rollers, and the substrate so as to form the composite pattern;
A letterpress residual coating liquid removing device that is disposed corresponding to each of the coating rollers, and removes the coating liquid from the letterpress for each transfer removal by the letterpress;
The relief printing liquid removing device is disposed corresponding to each application roller, and is provided so as to be movable integrally with the application roller. The relief plate application liquid removing device is slidably brought into contact with the relief plate by movement together with the application roller. A pattern forming apparatus characterized by being configured to remove liquid. A coating roller corresponding to a pattern constituent color of a pattern other than the combination part;
A coating liquid supply means for supplying a coating liquid of a pattern constituting color of a pattern other than the combination part corresponding to the coating roller to the coating roller;
Other than the combination part, the negative pattern coating liquid is transferred and removed by contact of the convex part with the convex part which has the negative pattern of the pattern and has the coating liquid supplied from the coating liquid supply means. The pattern forming apparatus according to claim 6, further comprising: one relief plate that forms a pattern in which the coating liquid remains on the coating roller so as to correspond to the position of the pattern.   The pattern forming apparatus according to claim 6, further comprising a relief position adjusting unit that positions the relief plate so that the projection of the relief plate corresponds to a portion of the application roller where the coating liquid is transferred and removed.   The pattern forming apparatus according to claim 6, further comprising a constant thickness coating liquid supply unit as the coating liquid supply unit. The pattern forming apparatus according to claim 6 , wherein the relief printing liquid removing apparatus includes a cleaning unit and a drying unit.

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