Discharge method, color filter manufacturing method, electro-optical apparatus, and electronic device
View Patent ↗A discharge method is provided to discharge a liquid containing a functional material from a plurality of nozzles of a droplet discharge head to a plurality of film formation regions of a discharge medium in synchronization with a relative movement of the discharge medium and the droplet discharge head. The discharge method includes performing a first discharge step in which the liquid is discharged from a plurality of nozzles in a nozzle row so that the liquid is not discharged simultaneously from adjacent nozzles positioned over the film formation regions, and performing a second discharge step in which the liquid is discharged from a plurality of nozzles in the nozzle row in a different combination from the nozzles used in the first discharging step so that the liquid is not discharged simultaneously from adjacent nozzles positioned over the film formation regions.
1. A discharge method of discharging a liquid containing a functional material from a plurality of nozzles of a droplet discharge head to a plurality of film formation regions of a discharge medium in synchronization with a relative main scanning of the discharge medium and the droplet discharge head, the plurality of film formation regions being partitioned by a partition component, the discharge method comprising:
performing a first discharge step in which the liquid is discharged from a first set of nozzles, the first set of nozzles being selected among the plurality of nozzles so that the liquid does not hit the partition component and the liquid is not discharged simultaneously from adjacent nozzles positioned over the film formation regions; and
performing a second discharge step in which the liquid is discharged from a second set of nozzles, the second set of nozzles being different from the first set of nozzles, the second set of nozzles being selected among the plurality of nozzles so that the liquid does not hit the partition component and the liquid is not discharged simultaneously from adjacent nozzles positioned over the film formation regions,
both the first discharge step and the second discharge step being performed during a single main scanning, and
at least a part of the liquid discharged during the first discharge step and at least a part of the liquid discharged during the second discharge step being disposed within the same one of the film formation regions.
2. The discharge method according to claim 1 , further comprising
controlling a head driver to generate a drive waveform at a prescribed period to drive a plurality of energy generation units provided in the droplet discharge head so that the liquid is discharged from the nozzles according to the drive waveform, and
selectively energizing the energy generation units corresponding to the nozzles used in the first discharge step and the second discharge step according to the drive waveforms that are generated at different timings, respectively.
3. The discharge method according to claim 1 , wherein
controlling a head driver to generate a plurality of drive waveforms in a single period to drive a plurality of energy generation units provided in the droplet discharge head so that the liquid is discharged from the nozzles according to the drive waveform, and
selectively energizing the energy generation units corresponding to the nozzles used in the first discharge step and the second discharge step according to the drive waveforms that are generated at different timings, respectively.
4. The discharge method according to claim 1 , wherein
the performing of the first discharge step and the second discharge step includes discharging the liquid in the same film formation regions in the first discharge step and in the second discharge step.
5. A method of manufacturing a color filter having a partition component that divides a substrate into a plurality of film formation regions and a plurality of types of color element disposed in the film formation regions, the method comprising:
discharging a plurality of types of liquid containing different color element formation materials as functional materials from the nozzles of the droplet discharge head to the film formation regions to form the plurality of types of color element in accordance with the discharge method according to claim 1 .
6. The discharge method according to claim 1 , wherein
the first set of nozzles is selected among the plurality of nozzles based on a diameter of droplets discharged from the plurality of nozzles so that the droplets discharged from the first set of nozzles do not touch the partition component.
7. The discharge method according to claim 1 , wherein
the second set of nozzles is selected among the plurality of nozzles based on a diameter of droplets discharged from the plurality of nozzles so that the droplets discharged from the second set of nozzles do not touch the partition component.
8. A discharge method of discharging a liquid from a plurality of nozzles onto a plurality of film formation regions of a discharge medium during a main scanning of a nozzle row of the nozzles with respect to the discharge medium, the plurality of film formation regions being partitioned by a partition component, the discharge method comprising:
dividing the nozzles in the nozzle row into a plurality of nozzle groups so that the liquid discharged from the nozzles does not hit the partition component and the nozzles included in the same nozzle group are not adjacent to each other; and
discharging the liquid from the nozzle groups at different timings that are synchronized to scanning during a single main scanning so that a part of the liquid discharged from different nozzle groups merges together on the discharge medium.
9. The discharge method according to claim 8 , wherein
the dividing of the nozzles includes dividing the nozzles in the nozzle row into at least three nozzle groups.
10. The discharge method according to claim 8 , wherein
the dividing of the nozzles includes dividing the nozzles in the nozzle row so that each of the nozzle groups includes substantially same number of the nozzles.
11. The discharge method according to claim 8 , further comprising
generating a plurality of drive waveforms by time division,
selectively supplying part of the drive waveforms to a plurality of energy generation units disposed within the nozzles to discharge the liquid from the nozzles, and
selecting the drive waveforms according to the nozzle groups such that the drive waveforms do not overlap with each other between the nozzle groups.
12. The discharge method according to claim 11 , wherein
the selecting of the drive waveforms includes selecting the drive waveforms so that the drive waveforms to be selected according to the nozzle groups form a periodic timing.
13. The discharge method according to claim 11 , wherein
the selecting of the drive waveforms includes selecting the drive waveforms so that the drive waveforms to be selected according to the nozzle groups form a non-periodic timing.