摘要:
According to the present invention, multiple rows of nozzles within a print head may be arranged proximal to and offset from each other to facilitate inkjet printing. Print heads may comprise a single row of nozzles or may comprise a plurality of rows of nozzles. Each row of nozzles may be situated such that the immediately adjacent row of nozzles may be offset by a predetermined distance. In some embodiments, adjacent rows of nozzles may each print with the same color. In this way, adjacent offset rows of nozzles may be used in combination to dispense ink drops into sub-pixel wells in improved patterns and with improved ink distribution within the sub-pixel well. These offset print techniques may also enable tighter grouping of ink drops within a sub-pixel well and enable faster printing operations.
摘要:
Methods and apparatus are provided for calibrating inkjet print nozzles that include dispensing a plurality of ink drops onto a surface with one or more inkjet print nozzles at a firing pulse voltage, measuring a parameter of the ink drops, and calibrating the firing pulse voltage of at least one of the one or more inkjet print nozzles based on the measured parameter of the ink drops.
摘要:
A method for forming color filters for flat panel displays comprising dispensing color inks into a pre-patterned matrix using an inkjet device and curing the dispensed color inks. In one aspect, the color inks are cured in a concave configuration. In another aspect, the color inks are cured using electron beam, laser, X-ray, or other suitable high energy source.
摘要:
The invention provides an inkjet printing apparatus that includes at least one inkjet print head adapted to dispense fluids onto a substrate and at least one delivery aperture adapted to direct a gas toward the substrate. The apparatus may also include at least one recovery aperture adapted to draw materials away from the substrate and evaporate liquids from the surface of the substrate.
摘要:
A cabinet for housing an ink supply is provided for use with an inkjet printing system. The cabinet, ink supply, and related structures are set apart from inkjet print heads in the inkjet printing system. Accordingly, the cabinet provides a location to store and supply quantities of ink and may make service and replacement of parts and/or consumables simpler and more accessible. The cabinet also houses components used to process and/or supply ink to inkjet print heads such as solvent, fluid delivery mechanisms (e.g., pumps, gas pressure devices, etc.), tubes, sensors, filters, exhaust, and drainage.
摘要:
Methods and apparatus for cleaning a nozzle plate of an inkjet print head are provided. A first method includes positioning a cleaning medium proximate the inkjet print head, determining a pressure for a pressure roller to apply against the cleaning medium, contacting the cleaning medium with the pressure roller with the determined pressure, and moving the cleaning medium relative to the inkjet print head so as to clean the inkjet print head. The method also includes purging ink from the inkjet print head prior to the pressure roller contacting the cleaning medium and pre-jetting ink from the inkjet print head after moving the cleaning medium. Numerous other aspects are provided.
摘要:
In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotate the print head about a center of the print head; and (4) an imaging system adapted to capture an image of the print head and to determine a center point of the print head based upon images of the print head captured as the print head is rotated. Numerous other aspects are provided.
摘要:
In a first aspect, a system is provided. The system includes (1) a stage adapted to move a substrate relative to print heads during printing; (2) at least one print head suspended from a support above the stage and adapted to be moveable in a plane above the stage; (3) a controller operable to rotate the print head about a center of the print head; and (4) an imaging system adapted to capture an image of the print head and to determine a center point of the print head based upon images of the print head captured as the print head is rotated. Numerous other aspects are provided.
摘要:
A method for treating a glass substrate and a black matrix thereon for a flat panel display is provided. In one application, the treatment of the glass substrate and black matrix is performed prior to delivery of ink to the glass substrate by an inkjet printing system. The black matrix and glass substrate are exposed to a surface active compound. In one aspect, exposing the black matrix and the glass substrate to a surface active compound modifies the surface energy of the black matrix, the surface energy of the glass substrate, or both. In another aspect, treating the black matrix and the glass substrate enhances the formation of color filters having sub-pixel wells that have a substantially uniform distribution of ink therein.
摘要:
In a first aspect, a first apparatus is provided for inkjet printing. The first apparatus includes an inkjet head support that includes a plurality of inkjet heads. A first inkjet head of the plurality of inkjet heads is adapted to be independently moveable in both directions along a lateral axis relative to a second inkjet head of the plurality of inkjet heads. The first apparatus also includes a system controller adapted to control an independent lateral movement of the first inkjet head relative to the second inkjet head. Numerous other aspects are provided.