Patent ID: 8654280

Claim:
A bi-stable chiral splay nematic mode liquid crystal display device, comprising: first and second substrates facing and spaced apart from each other, the first and second substrates including a display area and a non-display area surrounding the display area; a gate line and a data line on an inner surface of the first substrate, the gate line and the data line crossing each other with a gate insulating layer interposed between the gate line and the data line to define a pixel region; a thin film transistor connected to the gate line and the data line; a reflecting plate on the thin film transistor, the reflecting plate including an embossing pattern; a first passivation layer on the reflecting plate, the first passivation layer including a flat top surface, the first passivation layer having a thickness greater than about 1 μm; a first electrode on the first passivation layer in the pixel region, the first electrode having a plate shape and connected to the thin film transistor; a second passivation layer on the first electrode; at least one second electrode and at least one third electrode on the second passivation layer, the at least one second electrode and the at least one third electrode passing through the pixel region and spaced apart from each other; a fourth electrode on an inner surface of the second substrate; and a liquid crystal layer between the first and second substrates, the liquid crystal layer including bistable chiral splay nematic liquid crystal molecules, further comprising: a third passivation layer of an organic insulating material between the thin film transistor and the reflecting plate, wherein the third passivation layer includes an uneven pattern corresponding to the embossing pattern on a top surface thereof; a fourth passivation layer of an inorganic insulating material between the thin film transistor and the third passivation layer, the fourth passivation layer preventing a contamination and a deterioration of the thin film transistor by the organic insulating material for the third passivation layer; and a fifth passivation layer of an inorganic insulating material between the third passivation layer and the reflecting plate, the fifth passivation layer improving an adhesion between the third passivation layer and the reflecting plate, wherein each of the at least one second electrode and the at least one third electrode is parallel to the gate line, wherein each of the at least one second electrode and the at least one third electrode includes a plurality of notch portions protruding from both sides of each of the at least one second electrode and the at least one third electrode, and wherein the plurality of notch portions of the at least one second electrode face the plurality of notch portions of the at least one third electrode.