US 12,033,547 B2
Method of operating a distributed light source for displaying moving images and distributed light source
Marc Saes, Eindhoven (NL)
Assigned to eldoLAB Holding B.V., Son en Breugel (NL)
Appl. No. 16/761,088
Filed by EldoLAB Holding B.V., Son en Breugel (NL)
PCT Filed Nov. 8, 2018, PCT No. PCT/NL2018/050744
§ 371(c)(1), (2) Date May 1, 2020,
PCT Pub. No. WO2019/093888, PCT Pub. Date May 16, 2019.
Claims priority of application No. 2019867 (NL), filed on Nov. 8, 2017.
Prior Publication US 2020/0357315 A1, Nov. 12, 2020
Int. Cl. G06F 3/041 (2006.01); G09G 3/00 (2006.01); H05B 45/44 (2020.01); H05B 47/155 (2020.01)
CPC G09G 3/001 (2013.01) [G09G 3/005 (2013.01); H05B 45/44 (2020.01); H05B 47/155 (2020.01); G09G 2370/00 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of operating a distributed light source comprising a plurality of individually controllable light sources arranged in a single grid to display a moving image, the method comprising the steps of:
transmitting, by a central controller, an entire image of the moving image to be displayed in the single grid, wherein the transmitted image to each of the plurality of light sources of the distributed light source includes illumination data of the entire image to be displayed within the single grid of the plurality of light sources using an image coordinate system, the image coordinate system being a matrix, wherein each matrix element of the matrix comprises a coordinate set whereby each coordinate of the coordinate set indicates a desired illumination characteristic representing an intensity and a color to be generated at a particular location in the image by the respective light source of the plurality of individually controllable light sources, wherein each of the plurality of light sources receives only coordinates of the image coordinate system that are used by the respective light source for illumination of the moving image;
storing, by each of the plurality of light sources, at least a portion of the received image;
providing, to each of the plurality of light sources, position information including coordinates within the image coordinate system that are indicative of a position of the respective light source in the portion of the image using the image coordinate system;
determining, by each of the light sources, an illumination set point for the respective light source, based on the position information and the stored coordinate set of the portion of the image;
controlling the plurality of light sources to generate an illumination to display the image based upon only the coordinates that are indicative of the position of the respective light sources having the plurality of illumination set points; and
after displaying the image, displaying a next image of the moving image by:
providing to each of the light sources next position information including only a portion of the coordinate set of the specific light source indicative of a change in a next position of illumination for the light source in a direction of movement in the image such that the next position information is not provided to a light source having no change in coordinates in the direction of movement;
determining, by each of the light sources, a next illumination set point for the light source, based on the next position information; and
controlling the plurality of light sources to generate an updated illumination in the direction of movement of the image in accordance with the respective plurality of next illumination set points, thereby displaying the next image of the moving image using a smaller bandwidth of data containing only the position information of the light sources having a change in coordinate in the direction of movement of the image.