Patent ID: 8329067
Filing Date: 2012-12-11
Classification: G02B,G02F

Abstract:
1. A color filter comprising at least a transparent substrate and pixels containing a pigment, a pigment dispersing agent and a binder, wherein the pigment dispersing agent contains a polyethylimine derivative or polyallylamine derivative, wherein each of the pixels has a sectional shape in which there is a rise in the vicinity of the center and has an average film thickness range from 1.5 μm to 2.5 μm and a film thickness distribution range from 1.0 μm to 3.0 μm, wherein the ratio of the total area of the regions having a film thickness of 1.5 μm or less or 2.5 μm or more in one pixel is 5% or less, and wherein the binder contains a reaction product of an epoxy compound having two or more epoxy groups in its molecule, wherein the ratio (P/V ratio) of the weight of the pigment and the sum of the weights of the dispersing agent and the binder is 0.5 to 1.0 in R pixel, 0.5 to 1.2 in G pixel and 0.3 to 0.5 in B pixel.