Color conversion filter and color conversion color display having the same
View Patent ↗A color conversion filter substrate includes a transparent support substrate, one or more types of color conversion layers with a thickness more than 5 μm formed on the support substrate in a desired pattern, and a protective layer formed of a transparent material for covering the support substrate and the color conversion layers and having a flat surface. After a display is produced, the color conversion pattern layers contain unsaturated functional groups at a concentration equal to or less than 1.4×10 −3 mol/g.
1. A color conversion filter, comprising:
a transparent support substrate,
at least one color conversion layer formed on the support substrate in a specific pattern, said color conversion layer containing unsaturated functional groups at a concentration equal to or less than 1.4×10 −3 mol/g after the color conversion filter is assembled, and
a transparent protective layer for covering the color conversion layer and a surface of the transparent support substrate on which the color conversion layer is formed,
wherein said at least one color conversion layer is formed of an organic fluorescent colorant for absorbing first light with a wavelength in one of a near-ultraviolet region and a visible region to emit second light having a wavelength different from that of the first light, and a matrix resin containing one of a photo-setting resin and a photo-thermo-setting resin for binding the organic fluorescent colorant.
2. A color conversion filter according to claim 1 , wherein said at least one color conversion layer has a thickness equal to or greater than 5 μm.
3. A color conversion color display comprising: the color conversion filter according to claim 1 , and a luminous device formed on the color conversion filter.
4. A color conversion color display comprising: the color conversion filter according to claim 2 , and a luminous device formed on the color conversion filter and including a first electrode layer formed on at least one electrically independent area on the protective layer, a light-emitting layer formed on the first electrode and containing a light-emitting material, and a second electrode layer formed on said at least one electrically independent area on the protective layer so that when an electric signal is sent to the first and second electrode layers, the light-emitting layer between the first and second electrode layers emits light to the color conversion layer through the protective layer, thereby inducing fluorescent-light emission of the organic fluorescent colorant in the color conversion layer for allowing the color conversion color display to display a predetermined color through the support substrate.