摘要:
There is provided a process of forming a regular array of rows of subpixels on a workpiece. The subpixels having 3 different colors, and a subpixel pitch s. Of the three colors, q colors are formed by printing and r colors are formed by a non-printing method. The process includes the steps: (1) providing a printing head having z nozzles arranged in a row with a spacing between the nozzles of p, where z = 3n1 and p = 2s, the printhead being at a first position relative to the workpiece; (2) providing q different printing inks, one for each of the q printed colors; (3) supplying each of the printing inks to the nozzles in a regular alternating pattern; (4) printing a first set of z rows of subpixels with the printing head; (5) moving and printing in a first pattern with the steps: (a) moving the workpiece laterally relative to the printing head by a distance d1, where d1 = 3n2; and (b) printing a set of z rows of subpixels with the printing head; (6) moving and printing in a second pattern with the steps: (c) moving the workpiece laterally relative to the printing head by a distance d2, where d2 = 3n3, such that d1 + d2 = pz; and (d) printing a set of z rows of subpixels with the printing head; (7) repeating steps (5) and (6) multiple times in the same order; and (8) applying r colors by a non-printing method. Variables include: n1, an integer greater than 0; n2 and n3, odd integers, such that n2 + n3 = 2n1 q, an integer from 1 -3; and r, an integer, such that q + r = 3.
摘要:
According to the present disclosure, a printer apparatus (10) may include a chuck (16) configured to support a substrate (18) thereon, a rail (24, 26) spaced apart from the chuck, a print head carraige frame (14) coupled to the rail (24, 26), and a print head carriage (15) coupled to the print head carriage frame (14). The print head carriage (15) may include a print head (46) and an actuation mechanism (64). The actuation assembly (64) may be coupled to the print head carriage (15) and may be selectively engagable with the print head (46) for selectively displacement of the print head (46) relective to the print head carriage (15).
摘要:
The present invention provides methods and apparatus for controlling the quantity of fluid output (e.g., drop size) by individual nozzles of a print head to a very high precision at a frequency equal to the frequency at which fluid is normally dispensed. This is achieved by mapping fluid quantity control information into the data that represents the image to be printed. Data representative of an image is received and converted into pixel data. In at least one embodiment, the pixel data includes pixels represented by N bits, and the N bits may represent a drop size for the pixel and a union of the N bits may represent a nozzle status. A print head may be controlled based on the pixel data, and the print head may include nozzles that are each adapted to deposit at least one drop size quantity of a fluid on a substrate.