Pixel circuits and driving methods for low-cost LCD TV

Data- and Gate-Line-Sharing Pixel Structure and Driving Method for Low-Cost Polycrystalline Silicon Thin Film Transistor Liquid Crystal Displays

“…The power consumption of the gate signal cannot be ignored because the gate voltage range is larger than the data voltage range and it depends on the number of gate switching transitions. Considering the number of gate switching transitions in the pixel structure of Choi et al, 3) it is almost the same as that of the proposed pixel structure. In the pixel structure of Choi et al, because the additional line, A, must drive whole panel at the same time, there is no benefit in terms of power efficiency.…”

“…To reduce the manufacturing cost of a thin film transistor liquid crystal display (TFT-LCD) panel, gate-line-or dataline-sharing pixel structures have been proposed. [1][2][3][4] They can reduce the cost of the display module because they have a small number of data or gate lines on the panel thus requiring a smaller number of display driver ICs than conventional modules.…”

“…Consequently, this pixel structure degrades the image quality because it leads to an increase in ÁV p and the variation of ÁV p in each pixel. [1][2][3][4][5] We propose a new pixel structure that reduces manufacturing cost by reducing the number of data and gate driver ICs to half by only using P-channel TFTs. Also, the pixel structure has no additional long signal lines, so that it consumes little power.…”