Thin-film transistor liquid crystal display devices having cross-coupled

Abstract

Liquid crystal display devices include a matrix of thin-film transistor (TFT) display cells and storage capacitors to capacitively cross-couple pixel electrodes of adjacent display cells together in an efficient manner to improve display resolution. A preferred display device includes a plurality of liquid crystal display cells and spaced storage capacitors which are directly cross-coupled between pixel electrodes of display cells in adjacent rows and/or columns of cells. Here, the spaced storage capacitors each have a first electrode electrically connected to a pixel electrode in one display cell and a second electrode spaced opposite the first electrode and electrically connected to a pixel electrode in another adjacent display cell in the same column or row of display cells. Preferably, the first electrodes of the storage capacitors are contiguous with the pixel electrodes of a respective display cell and the second electrodes of the storage capacitors are electrically connected at ends thereof to respective pixel electrodes by a conductive via. By directly cross-coupling pixel electrodes of closely adjacent display cells together, improved display resolution can be achieved. For example, in the event a pixel electrode of a display cell cannot be properly loaded, the data (e.g., charge) from closely adjacent cells can be shared efficiently by direct cross-coupling to improve overall display resolution, particularly when the data to be loaded into the adjacent display cells is the same.