Patent ID: 8502334

Claim:
An image sensor comprising: a photo-sensing device; a color filter positioned on the photo-sensing device; a microlens positioned on the color filter; an insulation layer positioned between the photo-sensing device and the color filter, and including a trench exposing the photo-sensing device; and a filler filled in the trench, wherein the filler has light transmittance of about 85% or more at a visible ray region and a higher refractive index than the insulation layer, and wherein the filler comprises a polymer of a compound represented by the following Chemical Formula 1: wherein, in the above Chemical Formula 1, 3≦n<190, R 1 and R 2 are the same or different and are independently hydrogen, substituted or unsubstituted C1 to C10 alkyl, substituted or unsubstituted C3 to C12 cycloalkyl, a substituted or unsubstituted C6 to C12 aryl, substituted or unsubstituted C3 to C12 heteroaryl, or a combination thereof, and R 3 is substituted or unsubstituted C2 to C10 alkylene, substituted or unsubstituted C3 to C12 cycloalkylene, substituted or unsubstituted C6 to C12 arylene, substituted unsubstituted C3 to C12 heteroarylene, or a combination thereof.