Blue coloring composition for color filter, color filter and color display device
A technology of coloring composition and blue colorant, which is applied in the direction of optical filters, electric solid devices, semiconductor devices, etc., can solve the problems of high cost, complex structure of components, difficulty in high precision, large screen, etc., and achieve high Effects of contrast, wide color rendering area, and high brightness
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[0268]The above-obtained red resist was coated on a 100 mm×100 mm, 0.7 mm thick glass substrate with a spin coater so that the film thickness of x=0.640 and y=0.330. After drying, the cumulative light intensity was 150 mJ, and the streak-shaped pattern was exposed with an exposure machine, and developed with an alkaline developer for 90 seconds to form a stripe-shaped red filter segment. The alkaline developer was composed of 0.15% by weight of sodium carbonate, 0.05% by weight of sodium bicarbonate, 0.1% by weight of an anionic surfactant (“Perilex NBL” manufactured by Kao Corporation), and 99.7% by weight of water. After heating and cooling the substrate on which the red filter segments were formed, the above-obtained green resist was applied to have a film thickness of x=0.300 and y=0.600 in the same manner as the red resist. After drying, the stripe-shaped pattern adjacent to the red filter segment was exposed with an exposure machine, and developed with an alkaline develo...
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