US 12,094,387 B2
Offset drive scheme for digital display
Sunny Yat-san Ng, San Jose, CA (US)
Assigned to OmniVision Technologies, Inc., Santa Clara, CA (US)
Filed by OmniVision Technologies, Inc., Santa Clara, CA (US)
Filed on May 25, 2022, as Appl. No. 17/824,723.
Prior Publication US 2023/0386386 A1, Nov. 30, 2023
Int. Cl. G09G 3/20 (2006.01); G06T 1/60 (2006.01); G09G 3/32 (2016.01)
CPC G09G 3/2092 (2013.01) [G06T 1/60 (2013.01); G09G 3/32 (2013.01); G09G 2300/0452 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0686 (2013.01); G09G 2360/127 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for driving a digital display including a plurality of pixels arranged in a plurality of rows, said method comprising:
receiving a frame of data, said frame of data to be written to said digital display during a predefined frame time, said frame of data including one multi-bit data word corresponding to each pixel of said display, each multi-bit data word including a plurality of individual bits, each bit having a weight corresponding to an amount of time that said bit should be displayed by said corresponding pixel, each multi-bit data word capable of defining a maximum number of different intensity values;
dividing said frame time into a total number of time intervals, said total number of time intervals being greater than said maximum number of different intensity values;
defining a first set of said rows of said display;
defining a second set of said rows of said display;
defining a first sequence for displaying said corresponding multi-bit data words and one or more off states by said rows of said first set of rows, said first sequence beginning with the display of bits of said multi-bit data words;
defining a second sequence for displaying said corresponding multi-bit data words and one or more off states on said rows of said second set of rows, said second sequence beginning with the display of an initial off state, said first sequence and said second sequence beginning during a same time interval of said number of time intervals; and
displaying said frame of data and said off states on said display according to said first sequence and said second sequence; and wherein
the number of time intervals during which off states are asserted on the pixels of said first set of rows during said first sequence is the same as the number of time intervals during which off states are asserted on the pixels of said second set of rows during said second sequence.