System and method for reducing flicker on a display

A flicker reduction circuit in a display system including a display, the display including a series of scan lines, each of the scan lines including a plurality of pixels, the flicker reduction circuit comprising:

• a video signal for controlling the display, the video signal including a first and second video line corresponding to a first and second scan line, the first video line including a first control variable for controlling the intensity of a first pixel in the first scan line, the second video line including a second control variable for controlling the intensity of a second pixel in the second scan line;
• means for synchronizing the second control variable with the first control variable;
• means for providing a weighted, adaptive, and synthetic control value based on the difference between the first and second control variables;
• and
• means for applying the weighted, adaptive, and synthetic control value to one of the first and second control variables to provide a modified control variable that reduces flicker on the display screen.

A method for reducing flicker on display, the display including a series of scan lines, each of the scan lines including a plurality of pixels, wherein the display is controlled by a video signal, the video signal including a first and second video line corresponding to a first and second scan line, the first video line including a first control variable for controlling the intensity of a first pixel in the first scan line, the second video line including a second control variable for controlling the intensity of a second pixel in the second scan line, the method comprising the steps of:

• synchronizing the second control variable with the first control variable;
• providing a weighted, adaptive, and synthetic control value based on the difference between the first and second control variables;
• and
• applying the weighted, adaptive, and synthetic control value to one of the first and second control variables to provide a modified control variable that reduces flicker on the display screen.

A flicker reduction circuit in a display system including a display, the display including a series of scan lines, each of the scan lines including a plurality of pixels, wherein the display is controlled by a video signal including a first and second video line corresponding to a first and second scan line, the first video line including a second video line including a second control variable for controlling the intensity of a second pixel in the second scan line;

• the flicker reduction circuit comprising:
• a memory coupled to the second scan line for synchronizing the second control variable with the first control variable;
• a look-up table for receiving the first and second control variables and for outputting a weighted, adaptive, and synthetic control value based on the difference between the first and second control variables;
• and
• modifying means coupled to the look-up table and to the memory for modifying the second control variable by the weighted, adaptive, and synthetic control value to provide a modified control variable that reduces flicker on the display screen.

A flicker reduction circuit in a display system including a display, the display including a series of scan lines, wherein the display is controlled by a video signal including a first and second video line corresponding to a first and second scan line, the first video line including a first control variable for controlling the intensity of a first pixel in the first scan line, the second video line including a second control variable for controlling the intensity of a second pixel in the second scan line;

• the flicker reduction circuit comprising:
• a memory for receiving the first and second scan lines as input and for synchronizing the second control variable with the first control variable;
• a subtractor for receiving the synchronized first and second control variables as input and for subtracting the first and second control variables from one another to provide a subtracted value;
• a look-up table coupled to the subtractor for outputting a weighted, adaptive, and synthetic control value based on the subtracted value;
• and
• modifying means coupled to the look-up table and to the memory for modifying the second control variable by the weighted, adaptive, and synthetic control value to provide a modified control variable that reduces flicker on the display screen.

A flicker reduction circuit in a display system including a display, the display including a series of scan lines, wherein the display is controlled by a video signal including a first and second video line corresponding to a first and second scan line, the first video line including a first control variable for controlling the intensity of a first pixel in the first scan line, the second video line including a second control variable for controlling the intensity of a second pixel in the second scan line;

• the flicker reduction circuit comprising:
• a memory for receiving the first and second scan lines as input and for synchronizing the second control variable with the first control variable;
• a subtractor for receiving the synchronized first and second control variables as input and for subtracting the first and second control variables from one another to provide a subtracted value and a sign bit;
• an absolute value function coupled to the subtractor;
• a look-up table coupled to the absolute value for receiving the subtracted value and for outputting a weighted, adaptive, and synthetic control value based on the subtracted value;
• and
• modifying means for receiving the sign bit from the absolute value function and for receiving the weighted, adaptive, and synthetic control value from the look-up table, and for modifying the second control variable by the weighted, adaptive, and synthetic control value to provide a modified control variable that reduces flicker on the display screen.