Color filter producing method and apparatus

A color filter producing apparatus for producing a color filter by ejecting onto a substrate ink from an ink-jet head having a plurality of nozzles arranged substantially in a first direction while relatively scanning said ink-jet head and said substrate in a second direction substantially perpendicular to said first direction, so that filter elements adjacent in said second direction may be colored to have different colors, said apparatus comprising:

• main scanning means for relatively scanning said ink-jet head and said substrate in said second direction;
• coloring means for ejecting inks, during said main scanning, from plural different nozzles in said ink-jet head, and for coloring said filter elements with plural ink dots;
• and
• adjustment means for measuring landing locations for said plural ink dots to be ejected to color said filter elements, and for employing the measurement results to adjust the difference of said landing locations,
• wherein said adjustment means performs the adjustment before said filter elements are colored by said control means, and
• wherein said adjustment means measures the positioning difference in said second direction, and adjusts ejection timings for said plural nozzles so that said plural ink dots land along the center line of each of said filter elements in said first direction.

A method for producing a display device having a color filter, said color filter being produced by ejecting on a substrate ink from an ink-jet head having a plurality of nozzles arranged substantially in a first direction, while relatively scanning said ink-jet head and said substrate in a second direction substantially perpendicular to said first direction so that filter elements adjacent in said second direction may be colored to have different colors, said method comprising:

• a preparing step of preparing a color filter produced by executing a main scanning step of relatively scanning said ink-jet head and said substrate in said second direction, a coloring step of ejecting ink, during said main scanning step, from plural different nozzles of said ink-jet head, and coloring said filter elements with the plural ink dots, and an adjustment step of measuring, before said coloring step, landing locations for said plural ink dots to be ejected to color said filter elements, and of employing the measurement results to adjust the difference of said landing locations, wherein said adjustment step includes the steps of measuring the positioning difference in said second direction, and adjusting ejection timings for said plural nozzles so that said plural ink dots land along the center line of each of said filter elements in said first direction;
• and
• an integrating step of integrally forming a light quantity varying means and said color filter.

A method for producing an apparatus including a display device having a color filter, said color filter being produced by ejecting on a substrate ink from an ink-jet head having a plurality of nozzles arranged substantially in a first direction, while relatively scanning said ink-jet head and said substrate in a second direction substantially perpendicular to said first direction so that filter elements adjacent in said second direction may be colored to have different colors, said method comprising:

• a preparing step of preparing a display device integrally forming therein a light quantity varying means and a color filter produced by executing a main scanning step of relatively scanning said ink-jet head and said substrate in said second direction, a coloring step of ejecting ink, during said main scanning step, from plural different nozzles of said ink-jet head, and coloring said filter elements with multiple ink dots, and an adjustment step of measuring, before said coloring step, landing locations for said plural ink dots to be ejected to color said filter elements, and of employing the measurement results to adjust the differing of said landing locations, wherein said adjustment step includes the steps of measuring the positioning difference in said second direction, and adjusting ejection timings for said plural nozzles so that said plural ink dots land along the center line of each of said filter elements in said first direction;
• and
• a connecting step of connecting, to said display device, an image signal supply means for transmitting an image signal to said display device.