Patent ID: 7786961
Filing Date: 2010-08-31
Classification: G09G

Abstract:
1. A liquid crystal display device, comprising: a driving circuit having a data driver that includes a m-bit data signal, wherein the data driver is operative to extract a 2-bit data signal and a (m−2)-bit data signal from the m-bit data signal, and adjust a gray level of the (m−2)-bit data signal using the 2-bit data signal; and a liquid crystal panel including a pixel that is supplied with the (m−2)-bit data signal during a plurality of frames, wherein the driving circuit generates a first control signal maintaining the gray level of the (m−2)-bit data signal and a second control signal upgrading the gray level of the (m−2)-bit data signal using the 2-bit data signal, wherein the pixel has one of a first pixel state where “00,” “01,” “10” and “11” of the 2-bit data signal correspond to the first control signal, a second pixel state where “00” and “01” of the 2-bit data signal correspond to the first control signal and “10” and “11” of the 2-bit data signal correspond to the second control signal, a third state where “00,” “01” and “10” of the 2-bit data signal correspond to the first control signal and “11” of the 2-bit data signal corresponds to the second control signal, and a fourth state where “00” of the 2-bit data signal corresponds to the first control signal and “01,” “10” and “11” of the 2-bit data signal correspond to the second control signal, and wherein the first to fourth states are circulated such that the first state then the second state then the third state then the fourth state by a frame, the first state then the second state then the third state then the fourth state by a row line, and the first state then the third state then the second state then the fourth state by a column line.