Patent 7683371 was granted and assigned to Samsung on March, 2010 by the United States Patent and Trademark Office.
A display panel has a protection film having a recess. The recess is arranged above a storage electrode and corresponds to a location of the storage electrode in a plan view. A width of the recess is larger in plan view than a width of the storage electrode, and a pixel electrode is arranged on the protection film. The capacitance of a storage capacitor formed by charges stored in the pixel electrode and the storage electrode is determined by a thickness of the protection film and an overlapping area of the pixel electrode and the storage electrode.