Method and system for color correction for a display terminal
View Patent ↗A method and system relating to color correction for the display terminal of a display device, such method includes a master control unit generating color adjusting ratios, a display driver using the color adjusting ratios to perform color calibration, and a display panel displaying the resulting colors. Specifically, the master control unit generates adjusting ratios for the RGB color data and the display driver separately adjusts each color according to the percentage of R, G, and B in the ratio to generate a resulting pixel voltage. The system consists of a master control unit, a display driver, and a display panel. The master control unit contains an initialization block, having the following special characteristics: a master control unit with a color adjusting module that receives the color adjusting ratio sent from a color setting block, adjusts color data according to the adjusting ratio, generates the resulting pixel voltage, and displays the colors via a display panel. This invention is easy to operate, inexpensive to produce, and highly practicable.
1. A method for color correction for a display terminal, having a master control unit generating a color adjusting ratio, a display driver performing color adjustment according to said color adjusting ratio, and a display panel displaying the adjusted colors, comprising the steps of:
generating color adjusting ratios by said master control unit for RGB color data and forwarding the color adjusting ratios to the display driver;
adjusting by said display driver, in accordance with the color adjusting ratios, separate adjustments to RGB components and generating respective digital pixel voltages; and
displaying on the display panel in accordance with generated digital pixel voltages.
2. The method of claim 1 , wherein the generating step further includes the following steps:
the master control unit receiving an YCbCr color correction value;
the master control unit, according to the correction value, calculating the RGB percentage contained in the RBG color data and generating color adjusting ratios for each RGB component; and
the master control unit forwarding the generated color adjusting ratios to the display driver.
3. The method of claim 2 wherein the YCbCr color correction value is sent to the master control unit via a corresponding external input device.
4. The method of claim 1 wherein the display driver also performing gamma adjustment to the RGB components.
5. The method of claim 2 , further including the following steps:
the display driver storing the received RGB color adjusting ratios in memory;
the display driver, at least according to the color adjusting ratios stored in memory, performing separate adjustments for the RGB components; and
generating the respective pixel voltages.
6. The method of claim 5 , further comprising the steps of:
the display driver receiving one or more second adjusting ratios for the RGB components from the master control unit; and
the display driver separately adding the second adjusting ratios and the color adjusting ratios stored in the memory, and adjusting the RGB components accordingly.
7. A color correction system for display terminals, comprising:
a master control unit having an initialization block for performing system initialization and a color setting block for generating color adjusting ratios;
a display driver having a color adjustment module for receiving the color adjusting ratios from the color setting block, and adjusting color data according to the color adjusting ratios, and generating the respective pixel voltages; and
a display panel for displaying adjusted color data in accordance with the respective pixel voltages.
8. The system of claim 7 , wherein:
the color adjustment module having for RGB components a R adjusting sub module, a G adjusting sub module, and a B adjusting sub module; and
the color setting block generating adjusting ratios value for the RGB components and forwarding them separately to the R adjusting sub module, the G adjusting sub module, and the B adjusting module.
9. The system of claim 8 wherein the display driver having a memory unit, wherein the memory unit contains the adjusting ratios for the RGB components, and the color adjustment module performing the corresponding adjustments according to the adjusting ratios in the memory unit.
10. The system of claim 7 wherein the said color setting block having a correction data input module and a calculating sub module, wherein;
the correction data input module receives one or more YCbCr color correction values and forwards the YCbCr color correction values to the calculating sub module; and
the calculating sub module, according to RGB color data and the YCbCr color correction values, converts the color data, computes the adjusting ratios for the RGB components, and sends the converted color data and the adjusting ratios to the color adjusting module.
11. The system of claim 8 wherein the said color setting block having a correction data input module and a calculating sub module, wherein;
the correction data input module receives one or more YCbCr color correction values and forwards the YCbCr color correction values to the calculating sub module;
the calculating sub module, according to RGB color data and the YCbCr color correction values, converts the color data, computes the adjusting ratios for the RGB components, and sends the converted color data and the adjusting ratios to the color adjusting module.
12. The system of claim 7 wherein the display driver further comprising of a Gamma adjustment module for performing Gamma adjustments on the color data.
13. The system of claim 8 wherein the display driver further comprising of a Gamma adjustment module for performing Gamma adjustments on the color data.
14. The system of claim 10 wherein the display driver further comprising of a Gamma adjustment module for performing Gamma adjustments on the color data.
15. The system of claim 11 wherein the display driver further comprising of a Gamma adjustment module for performing Gamma adjustments on the color data.