Seiko Epson Corporation

Color shading is a phenomenon in which a part of the display looks colored when the LCD panel is used in a projector, especially when the gray level is displayed. To alleviate this problem, a color shading correction IC was developed. It divides the display into a maximum of 768 areas and adjusts the video signals for each area. Color shading was significantly reduced with this technology.

How color shading correction works

Color shading correction using Epson's correction IC