Patent ID: 8896512
Filing Date: 2014-11-25
Classification: G09G

Abstract:
1. A pixel circuit of a pixel for a display, comprising: a pixel storage node for storing and presenting a pixel voltage to a pixel display element; a cell storage node for storing a data on the pixel storage node; a first storage capacitor and a second storage capacitor each including a first electrode and a second electrode, the first electrode of the first storage capacitor operatively coupled directly to the pixel storage node without any transistor provided between the first electrode of the first storage capacitor and the pixel storage node, the first electrode of the second storage capacitor operatively coupled to the cell storage node, and the second electrode of the first and second storage capacitors operatively coupled to a respective different one of first and second independent voltage signal lines; and a pixel write circuit configured to write the pixel voltage to the pixel storage node during a data write cycle, and to provide respective voltage signals to the first and second independent voltage signal lines, each of the respective voltage signals being changed during the data write cycle in order to increase or reduce the pixel voltage, wherein the pixel circuit both minimizes a leakage of charge from the pixel and inverts the pixel voltage within the pixel, the leakage of charge from the pixel is minimized without an addition of an amplifier to a standard display circuit; the pixel circuit does not comprise a static random access memory; a hold circuit operatively coupled to the pixel write circuit and configured to minimize leakage of charge from the pixel storage node through the pixel write circuit; and an internal inversion circuit operatively coupled to the hold circuit and the pixel storage node and configured to invert the pixel voltage stored on the pixel storage node and presented to the pixel display element.