# US 11,308,847 B2 · Display apparatus and driving method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,847 B2 - Document ID: US11308847B2 - Status: Granted - Kind: B2 - Application number: 16/895,558 - Filed: 2020-06-08 - Published: 2020-09-24 - Granted: 2022-04-19 - Earliest claimed: 2016-08-26 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Seong-phil Cho; Jin-mo Kang; Sang-young Park - Web page: https://patentgrep.com/patent/US11308847B2 ## CPC - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G06F 3/1446: {display composed of modules, e.g. video walls} - G09G 3/3666: {with the matrix divided into sections} - G09G 3/32: semiconductive, e.g. using light-emitting diodes [LED] - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0633: by amplitude modulation of the brightness of the illumination source - G09G 2320/0666: for control of colour parameters, e.g. colour temperature - G09G 2330/025: Reduction of instantaneous peaks of current - G09G 2360/16: Calculation or use of calculated indices related to luminance levels in display data - 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) - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A display apparatus includes a display including a plurality of display modules, a display driver including a plurality of driving modules respectively connected to the plurality of display modules, a storage storing current information concerning a plurality of display modules, and a processor calculating a peak luminance level of each of a plurality of display modules based on individual power consumptions of each of a plurality of display modules and controlling a plurality of driving modules using the current information stored in the storage based on the calculated peak luminance level. ## Claims ### Claim 1 A display apparatus, comprising: a display comprising a plurality of display modules, the plurality of display modules comprising; one or more display drivers; and a processor configured to: identify a power consumption corresponding to each of the plurality of display modules; identify a maximum power consumption from among a plurality of power consumptions respectively corresponding to each of the plurality of display modules; identify a reference display module consuming the maximum power consumption; identify a power increase rate by dividing a maximum power amount of the reference display module by the power consumption of the reference display module; identify current information corresponding to each of the plurality of display modules based on the power increase rate and luminance information of an input image; and control the one or more display drivers to control an input current to each of the plurality of display modules based on the identified current information for each of the plurality of display modules, wherein each of the plurality of display modules comprises light emitting diode (LED) pixels, and wherein the current information comprises current control information according to luminance of each of the LED pixels of the plurality of display modules. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the current information comprises information calibrated based on a luminance characteristic and a color shift characteristic of each pixel included in the plurality of display modules. ### Claim 3 (depends on 2) The display apparatus of claim 2, wherein the processor is further configured to: obtain, from a storage, a current gain value of each LED pixels of the plurality of display modules, and control the one or more display drivers to control the input current to each of the plurality of display modules based on the obtained current gain value. ### Claim 4 (depends on 1) The display apparatus of claim 1, wherein the processor is further configured to: identify the power consumption based on the input image and the current information according to luminance of light emitting diode (LED) pixels, and control the one or more display drivers to control the input current to each of the plurality of display modules based on the identified power consumption of each of the plurality of display modules to display the input image using the plurality of display modules. ### Claim 5 (depends on 4) The display apparatus of claim 4, further comprising a storage storing the current information of each pixel included in the plurality of display modules, wherein the processor is further configured to control the one or more display drivers to control the input current based on each of the power consumption and the current information obtained from the storage. ### Claim 6 (depends on 4) The display apparatus of claim 4, the processor further configured to: identify a peak luminance level of each of the plurality of display modules based on each of the power consumption; and control the one or more display drivers to control the input current based on the peak luminance level. ### Claim 7 (depends on 1) The display apparatus of claim 1, wherein a storage further stores power information of each light emitting diode (LED) pixels per gray scale of the input image, and the processor is further configured to: calculate the power consumption of each of the plurality of display modules based on a gray scale value of the input image displayed on each of the plurality of display modules and the power information of each LED pixels per gray scale; and control the one or more display drivers to control the input current to each of the plurality of display modules based on the calculated the power consumption. ### Claim 8 (depends on 1) The display apparatus of claim 1, wherein each of the plurality of display modules is a light emitting diode (LED) cabinet comprising a plurality of LED pixels, the plurality of LED pixels comprising a red LED, a green LED and a blue LED. ### Claim 9 (depends on 1) The display apparatus of claim 1, wherein the one or more display drivers comprises a plurality of driving modules which are connected to the plurality of display modules, respectively. ### Claim 10 (depends on 1) The display apparatus of claim 1, wherein the processor is further configured to: calculate a modified power amount corresponding to each of the plurality of display modules by multiplying the power consumption corresponding to each of the plurality of display modules and the power increase rate, and identify the current information corresponding to each of the plurality of display modules based on the modified power amount corresponding to each of the plurality of display modules. ### Claim 11 A method for controlling a display apparatus including a display comprising a plurality of display modules and one or more display drivers, the method comprising: identifying a plurality of power consumptions respectively corresponding to the plurality of display modules; identifying a maximum power consumption from among the plurality of power consumptions respectively corresponding to each of the plurality of display modules; identifying a reference display module consuming the maximum power consumption; identifying current information corresponding to each of the plurality of display modules based on the maximum power consumption of the reference display module and luminance information of an input image; and controlling an input current to each of the plurality of display modules based on the identified current information for each of the plurality of display modules, wherein each of the plurality of display modules comprises light emitting diode (LED) pixels, and wherein the current information comprises current control information according to luminance of each of the LED pixels of the plurality of display modules. ### Claim 12 (depends on 11) The method of claim 11, wherein the current information comprises information calibrated based on a luminance characteristic and a color shift characteristic of each pixel included in the plurality of display modules. ### Claim 13 (depends on 12) The method of claim 12, further comprising: obtaining a current gain value of each LED pixels of the plurality of display modules, and controlling the input current to each of the plurality of display modules based on the obtained current gain value. ### Claim 14 (depends on 11) The method of claim 11, further comprising: identifying the power consumption based on the input image and the current information according to luminance of light emitting diode (LED) pixels, and controlling the input current to each of the plurality of display modules based on the identified power consumption of each of the plurality of display modules to display the input image using the plurality of display modules. ### Claim 15 (depends on 14) The method of claim 14, further comprising: controlling the input current based on each of the power consumption and the current information of each pixel included in the plurality of display modules. ### Claim 16 (depends on 14) The method of claim 14, further comprising: identifying a peak luminance level of each of the plurality of display modules based on each of the power consumption; and controlling the input current based on the peak luminance level. ### Claim 17 (depends on 11) The method of claim 11, further comprising: calculating the power consumption of each of the plurality of display modules based on a gray scale value of the input image displayed on each of the plurality of display modules and a power information of each light emitting diode (LED) pixels per gray scale of the input image; and controlling the input current to each of the plurality of display modules based on the calculated the power consumption. ### Claim 18 (depends on 11) The method of claim 11, wherein each of the plurality of display modules is a light emitting diode (LED) cabinet comprising a plurality of LED pixels, the plurality of LED pixels comprising a red LED, a green LED and a blue LED. ### Claim 19 (depends on 11) The method of claim 11, wherein the one or more display drivers comprises a plurality of driving modules which are connected to the plurality of display modules, respectively.