White organic light-emitting diode display device, its display control method, and display control device

A display control device for a white organic light-emitting diode (WOLED) display device, comprising:

• a reception module configured to receive red (R), green (G) and blue (B) source data;
• a minimum value determination module configured to determine a minimum value of the R, G and B source data;
• a white (W) data determination module configured to determine W data in accordance with the minimum value of the R, G and B source data;
• a chromaticity coordinate determination module configured to determine chromaticity coordinates of a WOLED in accordance with the W data;
• a gain value determination module configured to acquire a brightness value of the WOLED desired for compensating for the chromaticity coordinates of the WOLED to a target value, and a gain value of a subpixel participating in chromatic aberration compensation;
• and
• an algorithm conversion module configured to determine output values of R, G, B and W data in accordance with the brightness value of the WOLED, the gain value of the subpixel participating in the chromatic aberration compensation and the W data,
• wherein:
• the chromaticity coordinate determination module is configured to look up a chromaticity coordinate table in accordance with the W data, so as to acquire the chromaticity coordinates of the WOLED corresponding to the W data,
• different W data, the chromaticity coordinates of the WOLED corresponding to the different W data, and chromaticity coordinates of R, G and B subpixels are recorded in the chromaticity coordinate table, and
• the gain value determination module is configured:
• to acquire from the chromaticity coordinate table the chromaticity coordinates of the WOLED corresponding to the W data and the chromaticity coordinates of the subpixel participating in the chromatic aberration compensation, and
• calculate the brightness value of the WOLED desired for compensating for the chromaticity coordinates of the WOLED to the target value, and the gain value of the subpixel participating in chromatic aberration compensation using predetermined color-mixing equations in accordance with the chromaticity coordinates of the WOLED corresponding to the W data and the chromaticity coordinates of the subpixel participating in the chromatic aberration compensation.