# US 11,029,560 B2 · Liquid crystal display lighting modes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,029,560 B2 - Document ID: US11029560B2 - Status: Granted - Kind: B2 - Application number: 16/479,250 - Filed: 2017-12-12 - Published: 2020-10-08 - Granted: 2021-06-08 - Earliest claimed: 2017-12-12 - Assignees: Hewlett-Packard Development Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: Hsing-Hung Hsieh; Alexander Wayne Clark; Ann Alejandro Villegas - Web page: https://patentgrep.com/patent/US11029560B2 ## CPC - G02F 1/133603: {with LEDs} - G09G 3/3413: {Details of control of colour illumination sources} - G09G 3/36: using liquid crystals - G09G 2320/0613: The adjustment depending on the type of the information to be displayed - G09G 2320/0626: for control of overall brightness - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2330/021: Power management, e.g. power saving - G09G 2360/144: the light being ambient light - G09G 2360/16: Calculation or use of calculated indices related to luminance levels in display data - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - 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) ## Abstract Example implementations relate to liquid crystal display (LCD) lighting modes. An example device can include an LCD, a wide gamut light-emitting diode (LED) light set to backlight the LCD, a narrow gamut LED light set to backlight the LCD and a controller communicatively coupled to the LCD. The controller can switch the LCD between a wide gamut lighting mode, a narrow gamut lighting mode, and a high brightness lighting mode in response to changes in ambient light and content displayed on the LCD. ## Claims ### Claim 1 A device, comprising: a liquid crystal display (LCD); a wide gamut light-emitting diode (LED) light set to backlight the LCD; a narrow gamut LED light set to backlight the LCD; and a controller communicatively coupled to the LCD to: in response to detecting an ambient light amount associated with the LCD being above a particular threshold and a white content separate and distinct from the ambient light displayed on the LCD being below a different particular threshold, turn on the wide gamut LED light set and the narrow gamut LED light set to place the LCD in a high brightness lighting mode, wherein the different particular threshold comprises a white content on the LCD of 20 percent; and in response to detecting the ambient light amount being below the particular threshold and the white content being above the different particular threshold, adjust the LCD to a different lighting mode. ### Claim 2 (depends on 1) The device of claim 1, wherein the different lighting mode comprises a wide gamut lighting mode that comprises the wide gamut LED light set turned on and the narrow gamut LED light set turned off. ### Claim 3 (depends on 1) The device of claim 1, wherein the different lighting mode comprises a narrow gamut lighting mode that comprises the narrow gamut LED light set turned on and the wide gamut LED light set turned off. ### Claim 4 (depends on 1) The device of claim 1, further comprising: a light guide plate communicatively coupled to the LCD; and the wide gamut LED light set and the narrow gamut LED light set communicatively coupled to a same side of the light guide plate. ### Claim 5 (depends on 1) The device of claim 1, further comprising: a light guide plate communicatively coupled to the LCD; and the wide gamut LED light set and the narrow gamut LED light set communicatively coupled to different sides of the light guide plate. ### Claim 6 (depends on 1) The device of claim 1, wherein the controller is a remotely managed controller. ### Claim 7 A non-transitory machine-readable medium comprising instructions executable by a processor to: in response to detecting an ambient light amount associated with a liquid crystal display (LCD) being above a particular threshold and a white content separate and distinct from the ambient light displayed on the LCD is below a different particular threshold, turn on a wide gamut light emitting diode (LED) light set and a narrow gamut LED light set associated with the LCD to place the LCD in a high brightness lighting mode, wherein the different particular threshold comprises a white content on the LCD of 20 percent; and in response to detecting the ambient light amount being below the particular threshold and a white content separate and distinct from the ambient light displayed on the LCD is above the different particular threshold, adjust the LCD to a different lighting mode using the wide gamut LED light set and the narrow gamut LED light set and based on detected content displayed on the LCD. ### Claim 8 (depends on 7) The medium of claim 7, further comprising instructions executable by the processor to place the LCD in high brightness lighting mode in response to a remote command. ### Claim 9 (depends on 7) The medium of claim 7, further comprising instructions executable by the processor to adjust the LCD to the different lighting mode in response to a remote command. ### Claim 10 A non-transitory machine-readable medium comprising instructions executable by a processor to: detect an ambient light amount associated with a liquid crystal display (LCD) using a sensor integrated with the LCD; detect a white content separate and distinct from the ambient light displayed on the LCD; in response to the ambient light amount being above a particular threshold and the white content below a different particular threshold, turn on a wide gamut light emitting diode (LED) light set and a narrow gamut LED light set associated with the LCD to place the LCD in a high brightness lighting mode, wherein the different particular threshold comprises a white content on the LCD of 20 percent; and in response to the ambient light amount being below the particular threshold, the white content below the different particular threshold, and based on a detected application running on a computing device communicatively coupled to the LCD, adjust the LCD to a different lighting mode using the wide gamut LED light set and the narrow gamut LED light set. ### Claim 11 (depends on 10) The medium of claim 10, further comprising instructions executable by the processor to: adjust the LCD to a narrow gamut lighting mode by turning on the narrow gamut LED light set and turning off the wide gamut LED light set in response to the detected application reaching a narrow gamut lighting mode threshold; and adjust the LCD to a wide gamut lighting mode by turning on the wide gamut LED light set and turning off the narrow gamut LED light set in response to the detected application reaching a wide gamut lighting mode threshold. ### Claim 12 (depends on 11) The medium of claim 11, further comprising instructions executable by the processor to disable the high brightness lighting mode, the narrow gamut lighting mode, or the wide gamut lighting mode in response to a remote command. ### Claim 13 (depends on 10) The medium of claim 10, wherein the instructions executable by the processor to adjust the LCD to the different lighting mode based on the detected application comprises are executable by the processor to adjust the LCD to the different lighting mode based on a preset lighting mode rule for the detected application.