# US 12,771,819 B1 · Predictive backlight control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,771,819 B1 - Document ID: US12771819B1 - Status: Granted - Kind: B1 - Application number: 19/532,540 - Filed: 2026-02-06 - Granted: 2026-10-20 - Earliest claimed: 2026-02-06 - Assignees: Distance Technologies Oy - Applicants: Distance Technologies Oy - Inventors: Mikko Strandborg; Harri Kapanen - Web page: https://patentgrep.com/patent/US12771819B1 ## CPC - H04N 13/398: Synchronisation thereof; Control thereof - H04N 13/327: Calibration thereof - H04N 13/373: for tracking forward-backward translational head movements, i.e. longitudinal movements - H04N 13/376: for tracking left-right translational head movements, i.e. lateral movements - H04N 13/378: for tracking rotational head movements around an axis perpendicular to the screen - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A display system and method are disclosed. The display system has a display including a backlight unit that includes a plurality of backlight regions that are individually controllable. The display system further includes at least one processor configured to obtain motion information indicating motion of image content across a sequence of at least two image frames; determine, based on the motion information, a predicted backlight state for a next image frame to be presented on the display, wherein the predicted backlight state indicates respective emission levels for the plurality of backlight regions; and control the plurality of backlight regions for presentation of the next image frame on the display, based on the predicted backlight state. ## Claims ### Claim 1 A display system comprising: a display comprising a backlight unit that includes a plurality of backlight regions that are individually controllable; and at least one processor configured to: obtain motion information indicating motion of image content across a sequence of at least two image frames; determine, based on the motion information, a predicted backlight state for a next image frame to be presented on the display, wherein the predicted backlight state indicates respective emission levels for the plurality of backlight regions; and control the plurality of backlight regions for presentation of the next image frame on the display, based on the predicted backlight state. ### Claim 2 (depends on 1) The display system of claim 1, wherein, when obtaining the motion information, the at least one processor is configured to retrieve the motion information from a compressed video stream used to generate the sequence of at least two image frames. ### Claim 3 (depends on 1) The display system of claim 1, wherein, when obtaining the motion information, the at least one processor is configured to receive the motion information from an image generation unit that generates the sequence of at least two image frames. ### Claim 4 (depends on 1) The display system of claim 1, wherein the display is not a head-mounted display, the motion information comprises motion vectors, and wherein, when obtaining the motion information, the at least one processor is configured to: obtain information indicative of a head movement of a user; and calculate the motion vectors based at least in part on the head movement, to represent motion of the image content in a same direction as the head movement. ### Claim 5 (depends on 4) The display system of claim 4, wherein the display is an autostereoscopic display, and wherein, for image content anchored to a real-world object, the motion vectors are calculated based further on a perceived distance of the image content from the user. ### Claim 6 (depends on 1) The display system of claim 1, wherein the display is an autostereoscopic display, and wherein, when obtaining the motion information, the at least one processor is configured to: obtain motion information separately for different view images corresponding to different viewpoints; and combine the motion information obtained for the different view images. ### Claim 7 (depends on 1) The display system of claim 1, wherein the display is an autostereoscopic display, and wherein the at least one processor is configured to adjust a crosstalk compensation applied to image data of the next image frame based at least in part on the predicted backlight state. ### Claim 8 (depends on 1) The display system of claim 1, wherein the display is mounted on a vehicle, wherein the motion information comprises motion vectors, and wherein, when obtaining the motion information for image content not anchored to at least one of: the vehicle, a head of a user, the display, the at least one processor is configured to: obtain information indicative of a change in at least one of: a velocity, an acceleration, an orientation of the vehicle; and calculate the motion vectors based at least in part on the change in the at least one of: the velocity, the acceleration, the orientation of the vehicle. ### Claim 9 (depends on 1) The display system of claim 1, wherein the display is a head-mounted display worn by a user, wherein the motion information comprises motion vectors, and wherein, when obtaining the motion information, the at least one processor is configured to: obtain information indicative of a head movement of the user; and calculate the motion vectors, based at least in part on the head movement, to represent motion of the image content in a direction opposite to a direction of the head movement. ### Claim 10 (depends on 1) The display system of claim 1, wherein the display is an augmented-reality display, and wherein, when obtaining the motion information for image content anchored to a real-world object, the at least one processor is configured to: obtain information indicative of a change in at least one of: a position, an orientation, a velocity, an acceleration of the real-world object; and calculate the motion vectors based at least in part on the change in the at least one of: the position, the orientation, the velocity, the acceleration of the real-world object. ### Claim 11 (depends on 1) The display system of claim 1, wherein the motion information comprises motion vectors having a spatial resolution lower than a spatial resolution of image data of the sequence of at least two image frames. ### Claim 12 (depends on 1) The display system of claim 1, wherein, when controlling the plurality of backlight regions based on the predicted backlight state, the at least one processor is configured to apply temporal conditioning to the respective emission levels for the plurality of backlight regions. ### Claim 13 (depends on 12) The display system of claim 12, wherein, when applying the temporal conditioning, an increase in an emission level of a backlight region and a decrease in the emission level of the backlight region are applied differently. ### Claim 14 (depends on 1) The display system of claim 1, wherein the at least one processor is configured to adjust pixel intensity values of pixels located within a region of the next image frame corresponding to a given backlight region based at least in part on an emission level of the given backlight region as indicated by the predicted backlight state. ### Claim 15 A method comprising: obtaining motion information indicating motion of image content across a sequence of at least two image frames; determining, based on the motion information, a predicted backlight state for a next image frame to be presented on a display, wherein the display comprises a backlight unit that includes a plurality of backlight regions that are individually controllable, wherein the predicted backlight state indicates respective emission levels for the plurality of backlight regions; and controlling the plurality of backlight regions for presentation of the next image frame on the display, based on the predicted backlight state. ### Claim 16 (depends on 15) The method of claim 15, wherein the display is not a head-mounted display, the motion information comprising motion vectors, wherein obtaining the motion information comprises: obtaining information indicative of a head movement of a user; and calculating the motion vectors based at least in part on the head movement, to represent motion of the image content in a same direction as the head movement. ### Claim 17 (depends on 15) The method of claim 15, wherein the display is mounted on a vehicle, the motion information comprising motion vectors, wherein obtaining the motion information for image content not anchored to at least one of: the vehicle, a head of a user, the display comprises: obtaining information indicative of a change in at least one of: a velocity, an acceleration, an orientation of the vehicle; and calculating the motion vectors based at least in part on the change in the at least one of: the velocity, the acceleration, the orientation of the vehicle. ### Claim 18 (depends on 15) The method of claim 15, wherein the display is a head-mounted display worn by a user, the motion information comprising motion vectors, wherein obtaining the motion information comprises: obtaining information indicative of a head movement of the user; and calculating the motion vectors, based at least in part on the head movement, to represent motion of the image content in a direction opposite to a direction of the head movement. ### Claim 19 (depends on 15) The method of claim 15, wherein the display is an augmented-reality display, wherein obtaining the motion information for image content anchored to a real-world object comprises: obtaining information indicative of a change in at least one of: a position, an orientation, a velocity, an acceleration of the real-world object; and calculating the motion vectors based at least in part on the change in the at least one of: the position, the orientation, the velocity, the acceleration of the real-world object. ### Claim 20 (depends on 15) The method of claim 15, further comprising adjusting pixel intensity values of pixels located within a region of the next image frame corresponding to a given backlight region based at least in part on an emission level of the given backlight region as indicated by the predicted backlight state.