NVIDIA Corporation
DEFECTIVE PIXEL IDENTIFICATION AND MITIGATION IN MULTI-LAYER LIQUID CRYSTAL DISPLAYS

Abstract:

In various examples, defective cells from a first layer of a multi-layer liquid crystal display (LCD) may be compensated for by using one or more cells from a second layer of the multi-layer LCD. Color values corresponding to additional cells of the first layer that may be affected by the compensation of the second layer may also be adjusted to counter the compensation in order to generate a final pixel or sub-pixel value that closely mirrors the desired value from the image data. In addition, backlighting of the LCD may be adjusted such that one or more cells of the backlights--e.g., individual light-emitting diodes (LEDs)--may be adjusted to further aid in compensating for or mitigating the appearance of the defective cell.