Liquid crystal display having black insertion controller selecting black insertion control signals according to data stored therein and driving method thereof

A method for driving a liquid crystal display, the liquid crystal display comprising a liquid crystal panel having a plurality of pixels, the method comprising:

• (a) dividing a frame period into a first sub-frame period and a second sub-frame period;
• (b) providing a display signal and determining an address of a pixel corresponding to the display signal;
• (c) providing a black insertion controller to generate a first black insertion control signal according to the address of the pixel, comprising providing first four bits data and second four bit data, reading a first datum from the first four bits data and a second datum from the second four bit data according to the address of the pixel, and selecting the first datum as a first black insertion control signal according to a first timing signal, wherein the black insertion controller comprises a plurality of black insertion control units each having a control signal generator, the control signal generator comprises a first memory and a second memory configured for providing the first and second four bits data respectively, a first selector and a second selector configured for reading the first memory and the second memory respectively, and a multiplexer configured for selecting a corresponding datum;
• (d) providing a data circuit to drive the pixel to display one of a black image unit and a normal image unit according to the black insertion control signal;
• (e) converting the displayed black image unit into a normal image unit, or converting the displayed normal image unit into a black image;
• wherein steps (b), (c), and (d) are operated in the first sub-frame period, and step (e) is operated in the second sub-frame period.

A method for driving a liquid crystal display, the liquid crystal display comprising a liquid crystal panel having a plurality of pixels, the method comprising:

• (a) dividing a frame period into a first sub-frame period and a second sub-frame period;
• (b) providing a display signal and determining an address of a pixel corresponding to the display signal;
• (c) providing a black insertion controller to generate a black insertion control signal according to the address of the pixel, wherein the black insertion controller comprises a plurality of black insertion control units each having a control signal generator, the control signal generator comprises a memory member, a selector member, and a multiplexer, the selector member reads data stored in the memory member according to the address of the pixel, and the multiplexer generates the black insertion control signal according to the data read by the selector member;
• (d) providing a data circuit to drive the pixel to display one of a black image unit and a normal image unit according to the black insertion control signal;
• (e) converting the displayed black image unit into a normal image unit, or converting the displayed normal image unit into a black image;
• wherein steps (b), (c), and (d) are operated in the first sub-frame period, and step (e) is operated in the second sub-frame period.