4 RGB RGBW LIQUID CRYSTAL DISPLAY DEVICE FOUR-COLOUR CONVERTER AND RGB DATA TO RGBW DATA CONVERSION METHOD

摘要

The present invention discloses a liquid crystal display device. The original RGB data is converted to the gray scale value of the three-color type color, the white balance processing is performed on the gray scale value of the three-color type color, and the gray scale values Ri, Gi (Bi, Ri, Gi, Bi) and the minimum value of the original RGB data are determined to be equal to each other. When the minimum value is greater than 0, it is determined whether or not three of the original RGB data are identical. (Ri, Gi, Bi) + Gi-Wo, and Bo = 0 are applied to the following equation: Wo = Bi, Ro = Ri x Wo / MAX Calculate output gray scale values Ro, Go, Bo and Wo of four colors among RGBW data for which display is required; The data driver is configured to process the RGBW data required for display so that an analog type data signal is generated; The scan driver is configured to sequentially generate scan signals; The liquid crystal display panel is configured to display color in accordance with the analog type data signal provided by the data driver and the scan signal provided by the scan driver.