Mask-free Fabrication of Color Filter by an All Ink-Jet Printing Process
Abstract:In the past decade, the mask-free process has been developing to be able to make color filters by discharging each color of ink to the predetermined substrate, and then curing the ink to form the color filter pattern. A special feature of this paper is that only the ink-jet printing process is performed for enclosed banks and color resists formation on a bare substrate. The printed sub-pixel size is 130 um wide with a bank width of 15 um. The resulting color coordinates of three colors (red, green, and blue) on the chromaticity diagram are (0.7, 0.3), (0.33, 0.6) and (0.14, 0.09). The rendered excellent color performance of 68% NTSC area was achieved at 3 um thick films. Compared with commercial standard color filter material, acceptable △E value (<3) was achieved for each color in the heat, light, and chemical test. This novel fabrication process is compatible with flexible substrates and can provide low-cost ink-jet printed color filters for the future flexible display.
Document Type: Research Article
Publication date: January 1, 2007
For more than 25 years, NIP has been the leading forum for discussion of advances and new directions in non-impact and digital printing technologies. A comprehensive, industry-wide conference, this meeting includes all aspects of the hardware, materials, software, images, and applications associated with digital printing systems, including drop-on-demand ink jet, wide format ink jet, desktop and continuous ink jet, toner-based electrophotographic printers, production digital printing systems, and thermal printing systems, as well as the engineering capability, optimization, and science involved in these fields.
Since 2005, NIP has been held in conjunction with the Digital Fabrication Conference.
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