# US 2022/0044632 A1 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0044632 A1 - Document ID: US20220044632A1 - Status: Published application - Kind: A1 - Application number: 17/361,470 - Filed: 2021-06-29 - Published: 2022-02-10 - Earliest claimed: 2020-08-05 - Assignees: DENSO TEN Limited - Applicants: DENSO TEN Limited - Inventors: Nobuaki KAJIMOTO - Web page: https://patentgrep.com/patent/US20220044632A1 ## CPC - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED] - H04R 3/00: Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F) - H04R 23/00: Transducers other than those covered by groups H04R9/00 - H04R21/00 {(diaphragms for transducers of the distributed-mode type H04R7/045)} - G09G 2320/0626: for control of overall brightness - G09G 2330/021: Power management, e.g. power saving - G09G 2330/025: Reduction of instantaneous peaks of current - G09G 2330/04: Display protection - G09G 2360/16: Calculation or use of calculated indices related to luminance levels in display data - H04R 9/06: Loudspeakers - H04R 17/00: Piezoelectric transducers; Electrostrictive transducers (piezoelectric or electrostrictive elements in general H10N30/00; details of piezoelectric or electrostrictive motors, generators or positioners {H10N30/00}) - H04R 2430/01: Aspects of volume control, not necessarily automatic, in sound systems - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - 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) - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract A display apparatus includes a display, a loudspeaker and a controller. The controller is configured to: perform, based on one or both of (i) image information of an image that is displayed on the display, and (ii) sound information of sound that is output from the loudspeaker, electric current control processing that controls a sum of an electric current to be supplied to the display and an electric current to be supplied to the loudspeaker. ## Claims ### Claim 1 A display apparatus comprising: a display; a loudspeaker; and a controller that is configured to: perform, based on one or both of (i) image information of an image that is displayed on the display, and (ii) sound information of sound that is output from the loudspeaker, electric current control processing that controls a sum of an electric current to be supplied to the display and an electric current to be supplied to the loudspeaker. ### Claim 2 (depends on 1) The display apparatus according to claim 1, wherein the sound information includes a set volume of the sound that is output from the loudspeaker, and the controller is configured to perform the electric current control processing to decrease the electric current to be supplied to the display when the set volume of the sound that is output from the loudspeaker is equal to or greater than a predetermined volume threshold. ### Claim 3 (depends on 1) The display apparatus according to claim 1, wherein the sound information includes an output volume of the sound that is output from the loudspeaker, and the controller is configured to perform the electric current control processing to decrease the electric current to be supplied to the display when the output volume of the sound that is output from the loudspeaker is equal to or greater than a predetermined volume threshold. ### Claim 4 (depends on 1) The display apparatus according to claim 1, wherein the image information includes a luminance of the display, and the controller is configured to perform the electric current control processing to decrease the electric current to be supplied to the loudspeaker when the luminance of the display is equal to or greater than a predetermined luminance threshold. ### Claim 5 (depends on 1) The display apparatus according to claim 1, wherein the controller is further configured to: receive, from the display, an arithmetic value for electric current consumption of the display, the arithmetic value being calculated based on pixel value information that is included in the image information; estimate the electric current consumption of the display based on the arithmetic value that was received; and perform the electric current control processing when (i) the estimated electric current consumption of the display is equal to or greater than a predetermined electric current threshold and (ii) a set volume of the loudspeaker is equal to or greater than a predetermined volume threshold, the set volume being included in the sound information. ### Claim 6 (depends on 1) The display apparatus according to claim 1, wherein the controller is configured to perform the electric current control processing when a sum of an estimated electric current consumption of the display and an estimated electric current consumption of the loudspeaker is equal to or greater than a predetermined electric current consumption threshold, the estimated electric current consumption of the display being calculated based on the image information, and the estimated electric current consumption of the loudspeaker being calculated based on the sound information. ### Claim 7 (depends on 1) The display apparatus according to claim 1, wherein the controller is configured to perform the electric current control processing when a voltage value of a battery, which is a power source of the display apparatus, is equal to or smaller than a predetermined voltage threshold. ### Claim 8 (depends on 1) The display apparatus according to claim 1, wherein the electric current control processing includes processing that decreases a volume of the loudspeaker. ### Claim 9 (depends on 1) The display apparatus according to claim 1, wherein the electric current control processing includes processing that decreases a luminance of the image that is displayed on the display. ### Claim 10 (depends on 1) The display apparatus according to claim 1, wherein the electric current control processing includes processing that changes a color tone of the image that is displayed on the display. ### Claim 11 (depends on 1) The display apparatus according to claim 1, wherein the loudspeaker is a display speaker that outputs the sound by vibrating a display panel included in the display. ### Claim 12 (depends on 1) The display apparatus according to claim 1, wherein the display apparatus is connected by a wire harness to a main unit that is installed in a vehicle in which the display apparatus is installed. ### Claim 13 A display system comprising: a main unit that is installed in a vehicle; and a display apparatus that is connected to the main unit by a wire harness and that is supplied with electric power by the wire harness; wherein the main unit includes: a controller that is configured to perform, based on one or both of (i) image information of an image that is displayed on a display included in the display apparatus, and (ii) sound information of sound that is output from a loudspeaker included in the display apparatus, electric current control processing that controls a sum of an electric current to be supplied to the display and an electric current to be supplied to the loudspeaker. ### Claim 14 A display control method of a display apparatus having a display, the method comprising a step of: performing, based on one or both of (i) image information of an image that is displayed on the display, and (ii) sound information of sound that is output from a loudspeaker, electric current control processing that controls a sum of an electric current to be supplied to the display and an electric current to be supplied to the loudspeaker.