JPH09171107A5 - - Google Patents

Description

[0027]
The apparatus of FIG. 4 is similar to that illustrated in FIG. 3 , except that the patterned intaglio roller 18 is used as a black matrix ink pattern roll. The intaglio roller 18 in FIG. 4 has an ink-receiving recessed pattern 20 that receives a UV-curable, thermal wax- or solvent-based black matrix ink 28. In a preferred embodiment, an ink applicator roller 30 applies the UV-curable black matrix ink 28 to the recessed pattern 20. A doctor blade 32 removes excess ink from the pattern. The ink is then irradiated with UV light from a UV lamp 34 to solidify and harden the ink within the recessed pattern 20, forming a black matrix pattern 10 that still retains the shape of the recessed pattern 20. Alternatively, in a preferred embodiment, the intaglio roller 18 is made of a UV-transparent material, and a UV light 34c is attached to the intaglio roller 18 to solidify the black matrix ink while it remains in the recessed pattern 20. This solidification of the black matrix ink can also occur simultaneously while in contact with the transfer layer. For example, the black matrix ink may be solidified by ultraviolet light from UV light 34a. Once the solidification and curing of the black matrix ink is complete, the black matrix is sufficiently cured so that the ink does not separate, preferably so that the shape of the recessed pattern 20 is accurately maintained and the ink is completely fixed. When the black matrix pattern roller 18 contacts the transfer layer 14, the solidified and cured black matrix pattern 10 of the recessed pattern 20 is transferred to the transfer layer 14 on the collector roll 16. This results in the black matrix pattern being formed on the transfer layer 14. The transfer layer is preferably flat and preferably liquid before receiving the black matrix ink. It is important that the intaglio image surface be more easily released than the collector surface. The ink surface in the intaglio printing plate and gravure printing plate forms a concave meniscus, and the ink surface in the recessed intaglio pattern is curved below the printing plate surface. Therefore, the transfer layer must be soft and tacky enough to contact and adhere to the black matrix ink, yet also soft enough to remove the ink from the recessed intaglio printing pattern.

[0030]
Once the color filters are completed, color pixels are also formed. Each color pixel is composed of red, green, and blue subpixels (hereinafter, referred to as color cells). In all of the above-described embodiments, after the relief pattern 10 (relief black matrix pattern 10) is provided on the transfer layer 14, the red, green, and blue color cells of the color filter pattern are provided on the transfer layer 14 in the recesses 11 formed by the relief pattern 10.

Claims (13)

forming a multicolor pattern on the collector device;
solidifying the multicolor pattern while it is on the collector device;
and removing the multicolor pattern from the collector device to form a color filter structure. 2. The method of claim 1, further comprising the step of adhering said multicolor pattern onto a substrate to form a color filter. forming the multicolor pattern
forming a transfer layer on the collector device;
mechanically forming a relief pattern on the transfer layer, the relief pattern corresponding to the black matrix pattern and defining cell recesses having a width and a length;
2. The method of claim 1, further comprising the steps of depositing a plurality of colored inks within said recesses to create said multicolored pattern. 4. The method of claim 1, further comprising the step of contacting the multi-colored pattern with a straightening device to smooth the multi-colored pattern while it is on the collector roll before or during the solidifying step. 5. The method of claim 4, wherein said solidifying step optionally comprises curing said multicolor pattern simultaneously with said contacting step. 3. The method of claim 2, wherein said adhering step optionally includes using an adhesive to adhere said multicolor pattern to a substrate prior to said adhering step. 6. The method of claim 5, wherein said curing step comprises applying ultraviolet light from said straightening device to cure said multi-color pattern. 7. The method of claim 6, wherein the step of using an adhesive includes using an adhesive selected from the group consisting of polyimides, epoxies, acrylics, vinyl esters, polyurethanes, polyesters, acrylic esters, methacrylic esters, esters, and urethanes. A color filter layer composition consisting essentially of a solidified ink color filter layer, suitable for lamination to a substrate. 10. The composition of claim 9, wherein the color filter layer comprises a substantially uniform layer of a color pattern. 11. The structure according to claim 9 or 10, further comprising a transparent support supporting the solidified color filter layer, and optionally the material of the support is selected from the group consisting of polyimide, polyurethane, epoxy resin, polyester, methacrylate, and acrylate. 12. The composition of claim 11, wherein said color filter comprises a plurality of color inks, and said substrate comprises a relief pattern at least partially separating said color inks. 13. The composition of claim 12, wherein the relief pattern corresponds to a desired black matrix pattern, thereby forming recesses in the matrix of the relief pattern and retaining the color ink at least partially within the recesses.