US 11,688,352 B2
Technique for reducing display crosstalk and systems implementing the same
Sangmoo Choi, Palo Alto, CA (US); and Wonjae Choi, San Jose, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 16/967,192
Filed by Google LLC, Mountain View, CA (US)
PCT Filed Sep. 9, 2019, PCT No. PCT/US2019/050225
§ 371(c)(1), (2) Date Aug. 4, 2020,
PCT Pub. No. WO2021/050040, PCT Pub. Date Mar. 18, 2021.
Prior Publication US 2022/0415263 A1, Dec. 29, 2022
Int. Cl. G09G 3/3291 (2016.01); G09G 3/3233 (2016.01); G09G 3/3266 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 3/3233 (2013.01); G09G 3/3266 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0209 (2013.01); G09G 2360/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for displaying an image on a flat panel display comprising an array of pixels electrically addressable via a plurality of scan lines and a plurality of data lines, the scan lines being addressed sequentially in a scan direction, the method comprising:
(i) receiving, at a display driver module for the flat panel display, image data for displaying the image on the flat panel display, the image data comprising a grayscale value for each pixel;
(ii) determining a grayscale delta for each pixel from the grayscale values where, for a given pixel addressable by a first scan line of the scan lines and a first data line of the data lines, the grayscale delta is a variation between the grayscale value for the given pixel and the grayscale value for another pixel addressable by the first data line and addressable by a scan line that is to be addressed prior to the first scan line when displaying the image;
(iii) determining an aggregated grayscale delta for the first scan line by summing the grayscale deltas of each pixel addressable by the first scan line;
(iv) determining that a magnitude of the aggregated grayscale delta for the first scan line equals or exceeds a threshold value, wherein the threshold value is a value of an aggregated grayscale delta that results in line crosstalk;
(v) selecting, for image modification, a subset of pixels addressable by the first scan line;
(vi) modifying the image data for the selected subset of pixels addressable by the first scan line such that a magnitude of a modified aggregated grayscale delta for the first scan line is below the threshold value, thereby generating modified image data; and
(vii) displaying the image on the flat panel display using the modified image data.