Counter Electrode Structure for Liquid Crystal Display
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-27
Disclosed is a structure of a counter electrode for a liquid crystal display (LCD) with active matrix thin film transistors (TFTs). The structure allows orientation of a liquid crystal material only over display (pixel) electrodes, which reduces undesirable light leakage and degradation of the liquid crystal material due to voltage across data lines and the counter electrode. A LCD shown in Fig. 1 comprises gate lines 2, data lines 3, display electrodes 4 and liquid crystal material 5, which are sandwiched by two glass substrates 1 and 7. Counter electrodes 6 are deposited and patterned on the substrate 7. Fig. 2 is a cross-sectional view which shows the counter electrodes 6 patterned only on the areas corresponding to the display electrodes 4, respectively.