# US 12,190,773 B2 · Setting method of display panel and display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,190,773 B2 - Document ID: US12190773B2 - Status: Granted - Kind: B2 - Application number: 16/973,262 - Filed: 2020-10-23 - Published: 2023-05-04 - Granted: 2025-01-07 - Earliest claimed: 2020-09-02 - Assignees: Tcl China Star Optoelectronics Technology Co., Ltd. - Applicants: Tcl China Star Optoelectronics Technology Co., Ltd. - Inventors: Bo Hai - Web page: https://patentgrep.com/patent/US12190773B2 ## CPC - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - G09G 3/2007: {Display of intermediate tones} - G09G 5/02: characterised by the way in which colour is displayed {(details of colour display specific for CRTs G09G1/28; specific for flat matrix panels other than liquid crystal displays G09G3/2003; specific for liquid crystal displays G09G3/3607)} - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0276: for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction - G09G 2320/0626: for control of overall brightness - 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 2320/0693: Calibration of display systems - 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) ## Abstract The present disclosure provides a setting method of a display panel and the display panel, the method includes: acquiring a first chromaticity information of a first gray scale and a second chromaticity information of a second gray scale; acquiring a first difference value between the first chromaticity information and the second chromaticity information; and adjusting gray scale voltages of the first gray scale and/or the second gray scale when the first difference value is greater than a preset difference threshold, and a second difference value between the first chromaticity information and the second chromaticity information after adjustment is less than the first difference value. ## Claims ### Claim 1 A setting method of a display panel, comprising: acquiring a first chromaticity information of a first gray scale and a second chromaticity information of a second gray scale, and the first gray scale and the second gray scale are any two gray scales that are different and set at intervals; acquiring a first difference value between the first chromaticity information and the second chromaticity information; and adjusting gray scale voltage of at least one of the first gray scale or the second gray scale when the first difference value is greater than a preset difference threshold, to adjust a corresponding chromaticity information of the at least one of the first gray scale or the second gray scale, wherein a second difference value between the first chromaticity information and the second chromaticity information after adjustment is less than the first difference value. ### Claim 2 (depends on 1) The setting method of the display panel of claim 1, wherein brightness of the first gray scale is lower than brightness of the second gray scale. ### Claim 3 (depends on 2) The setting method of the display panel of claim 2, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: when the first chromaticity information is greater than the second chromaticity information, reducing the gray scale voltage of the first gray scale to reduce the first chromaticity information. ### Claim 4 (depends on 2) The setting method of the display panel of claim 2, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: when the first chromaticity information is less than the second chromaticity information, increasing the gray scale voltage of the first gray scale to increase the first chromaticity information. ### Claim 5 (depends on 1) The setting method of the display panel of claim 1, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: adjusting gray scale voltages of gray scales adjacent to the first gray scale simultaneously if the gray scale voltage of the first gray scale is adjusted; and adjusting gray scale voltages of gray scales adjacent to the second gray scale simultaneously if the gray scale voltage of the second gray scale is adjusted. ### Claim 6 (depends on 1) The setting method of the display panel of claim 1, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: adjusting gray scale voltages of gray scales between the first gray scale and the second gray scale simultaneously if the gray scale voltages of the first gray scale and the second gray scale are adjusted. ### Claim 7 (depends on 1) The setting method of the display panel of claim 1, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: acquiring a first gamma value of the first gray scale and a second gamma value of the second gray scale; acquiring a first gamma difference value between the first gamma value and a preset reference gamma value and a second gamma difference value between the second gamma value and the preset reference gamma value; adjusting gray scale voltages of the first gray scale and the second gray scale if the first gamma difference value is greater than the preset gamma threshold and the second gamma difference value is greater than the preset gamma threshold; adjusting the gray scale voltage of the first gray scale if the first gamma difference value is greater the preset gamma threshold and the second gamma difference value is not greater than the preset gamma threshold; and adjusting the gray scale voltage of the second gray scale if the first gamma difference value is not greater than the preset gamma threshold and the second gamma difference value is greater than the preset gamma threshold. ### Claim 8 A setting method of a display panel, comprising: acquiring a plurality of chromaticity information of a plurality of gray scales that are any different gray scales set at intervals; and if a difference value between the chromaticity information of any two of the gray scales is greater than a preset difference threshold, adjusting a gray scale voltage of at least one of the gray scales such that the difference value between the chromaticity information of any two of the gray scales after adjustment is not greater than the preset difference threshold. ### Claim 9 (depends on 8) The setting method of the display panel of claim 8, wherein adjusting the gray scale voltage of at least one of the gray scales such that the difference value between the chromaticity information of any two of the gray scales after adjustment is not greater than the preset difference threshold comprises: adjusting a gray scale voltage of a lower gray scale in the two gray scales between which the difference value of the chromaticity information is greater than the preset difference threshold, such that the difference value between the chromaticity information of the two gray scales after adjustment is not greater than the preset difference threshold. ### Claim 10 (depends on 8) The setting method of the display panel of claim 8, wherein the method further comprises: acquiring the plurality of chromaticity information of the plurality of gray scales set at intervals; obtaining an average chromaticity information according to the plurality of chromaticity information; and adjusting the gray scale voltage of at least one of the gray scales if a difference value between the chromaticity information of any of the gray scales and the average chromaticity information is greater than the preset difference threshold, such that the difference value between the chromaticity information of any of the gray scales after adjustment is not greater than the preset difference threshold. ### Claim 11 A display panel, comprising a memory and a processor, wherein through calling computer programs stored in the memory, the processor is configured to: acquire a first chromaticity information of a first gray scale and a second chromaticity information of a second gray scale, and the first gray scale and the second gray scale are any two gray scales that are different and set at intervals; acquire a first difference value between the first chromaticity information and the second chromaticity information; and adjust gray scale voltage of at least one of the first gray scale or the second gray scale when the first difference value is greater than a preset difference threshold, to adjust a corresponding chromaticity information of the at least one of the first gray scale or the second gray scale, wherein a second difference value between the first chromaticity information and the second chromaticity information after adjustment is less than the first difference value. ### Claim 12 (depends on 11) The display panel of claim 11, wherein brightness of the first gray scale is lower than brightness of the second gray scale. ### Claim 13 (depends on 12) The display panel of claim 12, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: when the first chromaticity information is less than the second chromaticity information, increasing the gray scale voltage of the first gray scale to increase the first chromaticity information. ### Claim 14 (depends on 12) The display panel of claim 12, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: when the first chromaticity information is greater than the second chromaticity information, reducing the gray scale voltage of the first gray scale to reduce the first chromaticity information. ### Claim 15 (depends on 11) The display panel of claim 11, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: adjusting gray scale voltages of gray scales adjacent to the first gray scale simultaneously if the gray scale voltage of the first gray scale is adjusted; and adjusting gray scale voltages of gray scales adjacent to the second gray scale simultaneously if the gray scale voltage of the second gray scale is adjusted. ### Claim 16 (depends on 11) The display panel of claim 11, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: adjusting gray scale voltages of gray scales between the first gray scale and the second gray scale simultaneously if the gray scale voltages of the first gray scale and the second gray scale are adjusted. ### Claim 17 (depends on 11) The display panel of claim 11, wherein adjusting the gray scale voltage of the at least one of the first gray scale or the second gray scale comprises: acquiring a first gamma value of the first gray scale and a second gamma value of the second gray scale; acquiring a first gamma difference value between the first gamma value and a preset reference gamma value and a second gamma difference value between the second gamma value and the preset reference gamma value; adjusting gray scale voltages of the first gray scale and the second gray scale if the first gamma difference value is greater than the preset gamma threshold and the second gamma difference value is greater than the preset gamma threshold; adjusting the gray scale voltage of the first gray scale if the first gamma difference value is greater the preset gamma threshold and the second gamma difference value is not greater than the preset gamma threshold; and adjusting the gray scale voltage of the second gray scale if the first gamma difference value is not greater than the preset gamma threshold and the second gamma difference value is greater than the preset gamma threshold. ### Claim 18 (depends on 11) The display panel of claim 11, wherein the processor is further configured to: acquire a plurality of chromaticity information of a plurality of gray scales set at intervals; and if a difference value between the chromaticity information of any two of the gray scales is greater than the preset difference threshold, adjust the gray scale voltage of at least one of the gray scales such that the difference value between the chromaticity information of any two of the gray scales after adjustment is not greater than the preset difference threshold. ### Claim 19 (depends on 18) The display panel of claim 18, wherein the processor is further configured to adjust a gray scale voltage of a lower gray scale in the two gray scales between which the difference value of the chromaticity information is greater than the preset difference threshold, such that the difference value between the chromaticity information of the two gray scales after adjustment is not greater than the preset difference threshold. ### Claim 20 (depends on 11) The display panel of claim 11, wherein the processor is further configured to: acquire a plurality of chromaticity information of a plurality of gray scales set at intervals; obtain an average chromaticity information according to the plurality of chromaticity information; and adjust the gray scale voltage of at least one of the gray scales if a difference value of the chromaticity information of any of the gray scales and the average chromaticity information is greater than the preset difference threshold, such that the difference value between the chromaticity information of any of the gray scales after adjustment is not greater than the preset difference threshold.