Abstract:
The present invention relates to coating methods and coating apparatus suitable for the stable production of coatings on the flat surface of sheet substrates, and methods for manufacturing coated sheet products such as color filters. An embodiment of the coating method according to the present invention is a coating method wherein a coating liquid feeder supplies coating liquid to a coating liquid applicator having a coating liquid discharge slot, with at least either the coating liquid applicator or a substrate to be coated being moved relatively one to the other to form a coating with a predetermined thickness on the substrate, comprising the steps of: keeping at rest the substrate at a position where the start-of-coating line of the substrate is in register with the coating liquid discharge slot of the coating liquid applicator; commencing discharge of the coating liquid through the coating liquid discharge slot; forming a coating liquid bead which is in contact with both an exit aperture portion of the coating liquid discharge slot and the start-of-coating line of the substrate; and subsequently commencing movement of at least either the coating liquid feeder or the substrate relatively one to the other. A coating method of this embodiment makes it possible to accurately determine the start-of-coating line and form a high accuracy coating, because by this method, after discharge of the coating liquid starts while the substrate to be coated is still at rest in register with the coating liquid discharge slot and the formation of the coating liquid bead is assured, the substrate is moved relatively to the coating liquid discharge slot while rendering the coating liquid bead stable.
Abstract:
A coating method and a coating apparatus which is suitable for stably forming a coating on the surface of a flat sheet member, and a method of manufacturing coated sheets such as a color filter. The coating method comprises the steps of supplying a coating liquid to a coating liquid discharging apparatus having a coating liquid discharging slit by means of a coating liquid feeder, relatively moving at least either the coating liquid discharging apparatus or a member to be coated and forming a coating having a predetermined thickness on the member. A coating start portion of the member is stopped at a place at which it opposes the coating liquid discharging slit of the coating liquid discharging apparatus, and discharge of the coating liquid from the coating liquid discharging slit is started. After a coating liquid bead which is in touch with both of the front end opening of the coating liquid discharging slit and the coating start portion of the member is formed, relative movement of at least either the coating liquid discharging apparatus or the member is started. By the coating method, discharge of the coating liquid is started when the member stops relative to the coating liquid discharging slit, and after the formation of the coating liquid bead is confirmed, the member is relatively moved in a state that the coating liquid bead remains stable. Therefore, the coating start position can be correctly determined, and a coating can be formed highly accurately.
Abstract:
A method for manufacturing plasma display, characterized by forming a phosphor layer on a substrate on which a plurality of partitions are formed, by continuously discharging phosphor pastes containing phosphor powder and an organic compound onto the substrate through a nozzle having a plurality of discharge ports. After three kinds of phosphor pastes respectively containing a phosphor powder which emits red, green, or blue light are applied to the gaps between the partitions in the form of a stripe from the nozzle, the phosphor layer is formed by heating the paste. A device for manufacturing plasma display characterized by being provided with a table on which a substrate with partitions is fixed, a nozzle which is faced to the partitions of the substrate and has discharge openings, means for supplying phosphor paste to the nozzle, and means for three-dimensionally moving the table and the nozzle relative to each other.
Abstract:
A coating method and a coating apparatus which is suitable for stably forming a coating on the surface of a flat sheet member, and a method of manufacturing coated sheets such as a color filter. The coating method comprises the steps of supplying a coating liquid to a coating liquid discharging apparatus having a coating liquid discharging slit by means of a coating liquid feeder, relatively moving at least either the coating liquid discharging apparatus or a member to be coated and forming a coating having a predetermined thickness on the member. A coating start portion of the member is stopped at a place at which it opposes the coating liquid discharging slit of the coating liquid discharging apparatus, and discharge of the coating liquid from the coating liquid discharging slit is started. After a coating liquid bead which is in touch with both of the front end opening of the coating liquid discharging slit and the coating start portion of the member is formed, relative movement of at least either the coating liquid discharging apparatus or the member is started. By the coating method, discharge of the coating liquid is started when the member stops relative to the coating liquid discharging slit, and after the formation of the coating liquid bead is confirmed, the member is relatively moved in a state that the coating liquid bead remains stable. Therefore, the coating start position can be correctly determined, and a coating can be formed highly accurately.
Abstract:
A slit die has a combined, opposing pair of lips. Between the lips, the die has a lip gap and a coating liquid discharge opening formed at the lower end of the lip gap. At least one of the lips is constituted of two blocks that are vertically layered over each other and relatively movable in the direction perpendicular to the length direction of the discharge opening. The slit die further has a block-engaging element for engaging the blocks together in such a way that relative positions of the blocks are adjustable, a block-fastening element for fastening the blocks together after their relative positions are adjusted, a positioning element attached to outer surfaces of the blocks, on the side opposite the discharge opening side, and defining the positions to which the blocks are relatively moved, and a fixing element for fixing the positioning element to the blocks.
Abstract:
A plasma display where crosstalk at its end sections is prevented by eliminating the jumping and rising of the end sections of a partition which occurs during firing. The plasma display is characterized in that slope sections are formed at the end sections of a stripe-like partition in the lengthwise direction and the height (Y) and the base length (X) of each of the slope sections are 0.5≤X/Y≤100. A method for manufacturing such a plasma display comprises the step of forming on a substrate a stripe-like partition pattern having slope sections at the end sections by using paste for partition composed of an inorganic material and an organic component and the step of firing the partition pattern.
Abstract:
PROBLEM TO BE SOLVED: To provide a substrate carrying hand which secures a good coated surface without the irregularity of dryness and film thickness even if a large- sized substrate is carried right after being coated with a low viscosity coating liquid on its surface, and to provide a substrate carrying method, a color filter manufacturing apparatus using these and a manufacturing method thereof. SOLUTION: This substrate carrying hand attached to an automatic carrying device for carrying a platy substrate while holding it comprises an in-plane support member for supporting the inner surface of the substrate and an in-plane support arm arranged so as to depart more than 10 mm from the surface of the substrate through the in-plane support member.
Abstract:
PROBLEM TO BE SOLVED: To provide a coating die cleaning means high in productivity, reducing the abrasion of a cleaning member to a large extent in a cleaning method for removing the excess coating solution bonded to the periphery of the discharge port of a coating die by bringing the cleaning member into slide contact with the die and preventing the generation of the quality flaw of a coating film caused by an abrasion powder. SOLUTION: In the coating die cleaning apparatus for cleaning a coating film forming surface consisting of the discharge port surface of the coating die for discharging the coating solution and the surface adjacent thereto, the cleaning member, which comes into slide contact with the coating film forming surface to remove the coating solution adhering to the coating film forming surface, and a suction opening part for sucking the removed coating solution are separately provided to the respective surfaces constituting the coating film forming surface and the suction opening part is arranged in the vicinity of the slide contact part of the cleaning member with the coating film forming surface and a mechanism for moving the cleaning member and the suction opening part in the longitudinal direction of the coating die is provided.
Abstract:
PROBLEM TO BE SOLVED: To attain high quality with a low cost by applying a 1st layer and a 2nd layer on a substrate by a diecoater in block to form a layer structure of the substrate, the 1st layer and the 2nd layer and removing the 2nd layer after the exposure to form the 1st layer into a prescribed pattern form. SOLUTION: The 1st layer 52 and the 2nd layer 54 are applied on the substrate A by the diecoater in block to form the layer structure of the substrate A, the 1st layer 52 and the 2nd layer 54. When the 1st layer 52 is a photosensitive layer, the 1st layer is exposed after the application in block. A prescribed thin film pattern is formed by removing the 2nd layer 54 and the needless part of the 1st layer 52 after the 1st layer is exposed. When the 1st layer 52 is a non-photosensitive layer and the 2nd layer 54 is a photosensitive layer, the 2nd layer is exposed after the application in block. A part except the prescribed pattern is removed by the development and the 2nd layer 54 is stripped and then the 1st layer present thereunder is formed into the prescribed pattern.