Granted Patent B2

US 7,399,051 · App. 11/062,346 · Granted Jul 15, 2008

Abstract

Claims (46)

1. An ejection device for coating a target section of a base body with a liquid material, comprising:

a stage for mounting the base body;

a head having a plurality of ejection nozzles, each of the plurality of ejection nozzles belonging to either one of a first nozzle train or a second nozzle train, the first nozzle train extending in an X axis direction and the second nozzle train extending in the X axis direction and substantially parallel to and spaced apart from the first nozzle train along a Y axis direction that is substantially perpendicular to the X axis direction;

a first nozzle group including three nozzles from the first nozzle train and two nozzles from the second nozzle train;

a second nozzle group including one nozzle from the second nozzle train, the second nozzle group disposed adjacent to the first nozzle group in the X axis direction; and

a scan section for moving at least one of the stage and the head relative to the other along the Y axis perpendicular to the X axis during first and second scan periods, the scan section moving at least one of the stage and the head relative to the other in a first direction along the Y axis during the first scan period and moving at least one of the stage and the head relative to the other in a second direction opposite the first direction along the Y axis during the second scan period;

wherein each of the ejection nozzles forming the first nozzle group is positioned in an ejectable range of the target section along the X axis direction during the first scan period,

each of the ejection nozzles forming the second nozzle group is positioned out of the ejectable range during the first scan period,

the scan section moves at least one of the stage and the head relative to the other in the X axis direction in a period between the first scan period and the second scan period so as to position each of the ejection nozzles forming the second nozzle group in the ejectable range, and

the head selectively ejects the liquid material to the target section from the ejection nozzles forming the first nozzle group in the first scan period, and selectively ejects the liquid material to the target section from the ejection nozzles forming the second nozzle group in the second scan period.

2. A method of coating with a liquid material by using an ejection device including a stage for mounting a base body, the method comprising:

positioning a first nozzle train having a plurality of ejection nozzles on a head and extending along an X axis direction;

positioning a second nozzle train having a plurality of ejection nozzles on the head and extending in the X axis direction, the second nozzle train being parallel to and spaced apart from the first nozzle train along a Y axis direction that is substantially perpendicular to the X axis direction;

forming a first nozzle group that includes three nozzles from the first nozzle train and two nozzles from the second nozzle train;

forming a second nozzle group that includes one nozzle from the second nozzle train, the second nozzle group disposed adjacent to the first nozzle group in the X axis direction;

moving at least one of the stage and the head relative to the other in a first direction along the Y axis perpendicular to the X axis direction in a first scan period while positioning each of the ejection nozzles forming the first nozzle group in an ejectable range of a target section of the base body along the X axis direction and each of the ejection nozzles forming the second nozzle group out of the ejectable range;

moving at least one of the stage and the head relative to the other in a second direction opposite the first direction and along the Y axis perpendicular to the X axis direction in a second scan period while positioning each of the ejection nozzles forming the second nozzle group in the ejectable range;

selectively ejecting the liquid material from each of the nozzles forming the first nozzle group to the target section in the first scan period; and

selectively ejecting the liquid material from each of the nozzles forming the second nozzle group to the target section in the second scan period.

3. A method of manufacturing a color filter substrate using an ejection device including a stage for mounting a base body, the method comprising:

positioning a first nozzle train having a plurality of ejection nozzles on a head and extending along an X axis direction;

positioning a second nozzle train having a plurality of ejection nozzles on the head and extending in the X axis direction, the second nozzle train being parallel to and spaced apart from the first nozzle train along a Y axis direction that is substantially perpendicular to the X axis direction;

forming a first nozzle group that includes three nozzles from the first nozzle train and two nozzles from the second nozzle train;

forming a second nozzle group that includes one nozzle from the second nozzle train, the second nozzle group disposed adjacent to the first nozzle group in the X axis direction;

moving at least one of the stage and the head relative to the other in a first direction along the Y axis perpendicular to the X axis direction in a first scan period while positioning each of the ejection nozzles forming the first nozzle group in an ejectable range of a target section of the base body along the X axis direction and each of the ejection nozzles forming the second nozzle group out of the ejectable range;

moving at least one of the stage and the head relative to the other in a second direction opposite the first direction and along the Y axis perpendicular to the X axis direction in a second scan period while positioning each of the ejection nozzles forming the second nozzle group in the ejectable range;

selectively ejecting a liquid color filter material from each of the nozzles forming the first nozzle group to the target section in the first scan period; and

selectively ejecting the liquid color filter material from each of the nozzles forming the second nozzle group to the target section in the second scan period.

4. A method of manufacturing an electroluminescence display device by using an ejection device including a stage for mounting a base body, the method comprising:

positioning a first nozzle train having a plurality of ejection nozzles on a head and extending along an X axis direction;

positioning a second nozzle train having a plurality of ejection nozzles on the head and extending in the X axis direction, the second nozzle train being parallel to and spaced apart from the first nozzle train along a Y axis direction that is substantially perpendicular to the X axis direction;

forming a first nozzle group that includes three nozzles from the first nozzle train and two nozzles from the second nozzle train;

forming a second nozzle group that includes one nozzle from the second nozzle train, the second nozzle group disposed adjacent to the first nozzle group in the X axis direction;

moving at least one of the stage and the head relative to the other in a first direction along the Y axis perpendicular to the X axis direction in a first scan period while positioning each of the ejection nozzles forming the first nozzle group in an ejectable range of a target section of the base body along the X axis direction and each of the ejection nozzles forming the second nozzle group out of the ejectable range;

moving at least one of the stage and the head relative to the other in a second direction opposite the first direction and along the Y axis perpendicular to the X axis direction in a second scan period while positioning each of the ejection nozzles forming the second nozzle group in the ejectable range;

selectively ejecting a liquid light emitting material from each of the nozzles forming the first nozzle group to the target section in the first scan period; and

selectively ejecting the liquid light emitting material from each of the nozzles forming the second nozzle group to the target section in the second scan period.

5. A method of manufacturing a plasma display device by using an ejection device including a stage for mounting a base body, the method comprising:

positioning a first nozzle train having a plurality of ejection nozzles on a head and extending along an X axis direction;

positioning a second nozzle train having a plurality of ejection nozzles on the head and extending in the X axis direction, the second nozzle train being parallel to and spaced apart from the first nozzle train alone a Y axis direction that is substantially perpendicular to the X axis direction;

forming a first nozzle group that includes three nozzles from the first nozzle train and two nozzles from the second nozzle train;

forming a second nozzle group that includes one nozzle from the second nozzle train, the second nozzle group disposed adjacent to the first nozzle group in the X axis direction;

moving at least one of the stage and the head relative to the other in a first direction along the Y axis perpendicular to the X axis direction in a first scan period while positioning each of the ejection nozzles forming the first nozzle group in an ejectable range of a target section of the base body along the X axis direction and each of the ejection nozzles forming the second nozzle group out of the ejectable range;

moving at least one of the stage and the head relative to the other in a second direction opposite the first direction and along the Y axis perpendicular to the X axis direction in a second scan period while positioning each of the ejection nozzles forming the second nozzle group in the ejectable range;

selectively ejecting a liquid fluorescent material from each of the nozzles forming the first nozzle group to the target section in the first scan period; and

selectively ejecting the liquid fluorescent material from each of the nozzles forming the second nozzle group to the target section in the second scan period.

Assignments (7)