# US 10,319,268 B2 · Ambient light color compensating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,319,268 B2 - Document ID: US10319268B2 - Status: Granted - Kind: B2 - Application number: 15/600,031 - Filed: 2017-05-19 - Published: 2017-12-28 - Granted: 2019-06-11 - Earliest claimed: 2016-06-24 - Assignees: Nanosys, Inc. - Applicants: Nanosys, Inc. - Inventors: Jason Hartlove - Web page: https://patentgrep.com/patent/US10319268B2 ## CPC - G09G 3/007: {Use of pixel shift techniques, e.g. by mechanical shift of the physical pixels or by optical shift of the perceived pixels} - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/2007: {Display of intermediate tones} - G05D 25/02: characterised by the use of electric means - G06F 3/1423: {controlling a plurality of local displays, e.g. CRT and flat panel display} - G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)} - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0626: for control of overall brightness - G09G 2320/0653: Controlling or limiting the speed of brightness adjustment of the illumination source - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2320/0673: for control of gamma adjustment, e.g. selecting another gamma curve - G09G 2340/06: Colour space transformation - G09G 2354/00: Aspects of interface with display user - G09G 2360/144: the light being ambient light - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - G05D: SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract Systems and methods that provide compensation for ambient light in a location of a display device are described. According to various embodiments, a method of compensating for ambient light in a display device is provided. According to the method, an ambient light measurement may be received. The ambient light measurement may include information concerning the intensity of the ambient light present at the location of the display device, the spectrum of the ambient light present at the display device (e.g., color temperature, white balance, or wavelength), and/or both an intensity and a spectrum of the ambient light. ## Claims ### Claim 1 A method of compensating for ambient light in a display device, comprising: receiving an ambient light measurement, wherein the ambient light measurement comprises intensity information relating to the ambient light in a location of the display device; determining an intermediate mapping from a first color space to a second color space based at least on the ambient light measurement; remapping a display data for the display device based on the intermediate mapping; and displaying the remapped data on the display device. ### Claim 2 (depends on 1) The method of claim 1, wherein the ambient light measurement comprises spectral information relating to ambient light in a location of the display device. ### Claim 3 (depends on 1) The method of claim 1, wherein the second color space is larger than the first color space. ### Claim 4 (depends on 1) The method of claim 1, wherein a size of the second color space depends on an intensity of the ambient light associated with the ambient light measurement. ### Claim 5 (depends on 1) The method of claim 1, further comprising: receiving an updated ambient light measurement; and updating the intermediate mapping to map the first color space to a third color space having a size that is different from a size of the second color space. ### Claim 6 (depends on 1) The method of claim 1, wherein the ambient light measurement is received from an ambient light sensor associated with the display device. ### Claim 7 (depends on 1) The method of claim 1, wherein the first color space comprises a display gamut. ### Claim 8 (depends on 7) The method of claim 7, wherein the intermediate mapping is configured such that the display data, when displayed on the display device, appears to match the display gamut when viewed in the ambient light corresponding to the ambient light measurement. ### Claim 9 (depends on 7) The method of claim 7, wherein the second color space is larger than the display gamut. ### Claim 10 A system configured to modify a gamut of a display device, the system comprising: an interface configured to receive an ambient light measurement, wherein the ambient light measurement comprises intensity information relating to ambient light in a location of the display device; and one or more processors configured to: process the ambient light measurement to determine an intermediate mapping from a first color space to a second color space based at least on the ambient light measurement; remap a display data for the display device based on the intermediate mapping; and display the remapped data on the display device. ### Claim 11 (depends on 10) The system of claim 10, wherein the ambient light measurement received by the interface comprises spectral information relating to the ambient light in the location of the display device. ### Claim 12 (depends on 10) The system of claim 10, wherein the one or more processors are configured to map the first color space to the second color space such that the second color space is larger than the first color space. ### Claim 13 (depends on 10) The system of claim 10, wherein a size of the second color space depends on an intensity of the ambient light associated with the ambient light measurement. ### Claim 14 (depends on 10) The system of claim 10, wherein the interface is further configured to receive an updated ambient light measurement. ### Claim 15 (depends on 14) The system of claim 14, wherein the one or more processors are further configured to update the intermediate mapping to map the first color space to a third color space having a size that is different from a size of the second color space. ### Claim 16 (depends on 10) The system of claim 10, wherein the one or more processors are configured to determine the intermediate mapping such that the display data, when displayed on the display device, appears to match a display gamut when viewed in the ambient light corresponding to the ambient light measurement. ### Claim 17 A display device, comprising: an ambient light sensor configured to sense ambient light information, wherein the ambient light information comprises intensity information relating to ambient light in a location of the display device; and a video system gamut modifier configured to: process the ambient light information to determine an intermediate mapping from a first color space to a second color space based at least on the ambient light measurement; remap a display data for the display device based on the intermediate mapping; and a display driver configured to drive a display according to the remapped display data from the video system gamut modifier. ### Claim 18 (depends on 17) The display device of claim 17, wherein the video system gamut modifier is further configured to update the intermediate mapping to map the first color space to a third color space having a size that is different from a size of the second color space. ### Claim 19 (depends on 17) The display device of claim 17, wherein the video system gamut modifier is further configured to map the first color space to the second color space such that the second color space is larger than the first color space. ### Claim 20 (depends on 17) The display device of claim 17, wherein the ambient light information comprises spectral information relating to the ambient light in the location of the display device.