Optically compensated bend mode liquid crystal display device and driving method for the same

摘要

The present invention is a first and second substrate and disposed spaced from the other unit; The facing is formed in each of the first and second substrate of the viewing surface, the horizontal orientation and the first and second alignment layers in the same direction to each other; The first and second alignment layer is formed between the liquid crystal layer, characterized by a state transition from the first state to the second state by a direct-current voltage is applied; Facing the common electrode and the pixel electrode each formed on the side and watching of the first and second substrates; Is formed on the first substrate, and a thin film transistor for applying a signal to the pixel electrode; And a common electrode drive circuit for applying a driving voltage to the common electrode; And a DC power supply for applying a DC voltage for the state transition of the liquid crystal layer to the common electrode; And a switch for selectively switching the drive voltage and the direct current voltage applied to the common electrode, applying a DC voltage to the common electrode so that the transition from the liquid crystal layer is the first state to the second state, the liquid crystal layer After the transition to the second state and continues to initiate the OCB mode liquid crystal display device is characterized by applying a driving voltage to the common electrode.