# US 2014/0198020 A1 · Spliced liquid crystal display (slcd), method for checking the slcd, and lcd device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0198020 A1 - Document ID: US20140198020A1 - Status: Published application - Kind: A1 - Application number: 13/824,351 - Filed: 2013-02-26 - Published: 2014-07-17 - Earliest claimed: 2013-01-16 - Assignees: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Applicants: Shenzhen China Star Optoelectronics Technology Co., Ltd. - Inventors: Shensian Syu; Chunhuai Li - Web page: https://patentgrep.com/patent/US20140198020A1 ## CPC - G09G 3/36: using liquid crystals - G09G 3/3611: {Control of matrices with row and column drivers} - G06F 3/1446: {display composed of modules, e.g. video walls} - G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - G09G 2320/0693: Calibration of display systems - G09G 2320/08: Arrangements within a display terminal for setting, manually or automatically, display parameters of the display terminal - 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 spiked liquid crystal display (SLCD) includes a plurality of LCD devices. Each LCD device includes an LCD panel, and a drive circuit controlling a display of the LCD pane The drive circuit includes an adjusting equipment storing a display parameter, and the display parameters of the adjusting equipments of at least two LCD devices of the plurality of LCD devices are different. ## Claims ### Claim 1 A spliced liquid crystal display (SLCD), comprising: a plurality of LCD devices; wherein each LCD device comprises an LCD panel, and a drive circuit controlling a display of the panel; the drive circuit comprises an adjusting equipment storing a display parameter, wherein the display parameters of the adjusting equipments of at least two LCD devices of the plurality of LCD devices are different. ### Claim 2 (depends on 1) The spliced liquid crystal display (SLCD) of claim 1, wherein the adjusting equipment comprises an interface module connected with an external debugging equipment, and the adjusting equipment reads the display parameter from the interface module and stores the display parameter. ### Claim 3 (depends on 2) The spliced liquid crystal display (SLCD) of claim 2, wherein the display parameter comprises a gamma value and a chroma value. ### Claim 4 (depends on 2) spliced liquid crystal display (SLCD) of claim 2 herein the display parameter comprises a gamma value and a chroma value, the drive circuit comprises a timing control chip controlling display of the LCD panel, and the adjusting equipment comprises a programmable voltage buffer unit having an adjustable gamma value and a storage unit storing the chroma value, the programmable voltage buffer unit and the storage unit are connected with the interface module; an output end of the storage unit is coupled with a chroma correction unit, and the chroma correction unit is integrated with the timing control chip; output signals of the timing control chip and the programmable voltage buffer unit are coupled to the LCD panel. ### Claim 5 (depends on 1) The spliced liquid crystal display (SLCD) of claim 1, wherein the display parameter comprises a gamma value, and the adjusting equipment comprises a gamma correction unit having an adjustable gamma value. ### Claim 6 (depends on 1) The spliced liquid crystal display (SLCD) of claim 1, wherein the display parameter comprises a chroma value, and the adjusting equipment comprises a chroma correction unit having an adjustable chroma value. ### Claim 7 A method for checking a display of a spliced liquid crystal display (SLCD), wherein the SLCD comprises at least two LCD devices; each LCD device comprises an LCD panel, and a drive circuit controlling a display of the LCD panel; the drive circuit. comprises an adjusting equipment storing a display parameter, and the adjusting equipment comprises an interface module connected with an external debugging equipment; the method comprising: A: capturing a display image of one of the LCD devices by an optical sensing system, and extracting a display effect of the display image as a reference effect using the captured display image of the LCD device as a basis; B: capturing the display effects of the display images of other LCD devices in sequence using the optical sensing system; and C: adjusting the display parameters of the other LCD devices to enable the display effects of compared images to be consistent with the reference effect. ### Claim 8 (depends on 7) The method for checking the display of the spliced liquid crystal display (SLCD) of claim 7, wherein in the step C, the optical sensing, system writes a debugged display parameter into the adjusting equipment through the interface module. ### Claim 9 (depends on 7) The method for checking the display of the spliced liquid crystal display (SLCD) of claim 7, wherein the display parameter comprises one or both of a gamma value and a chroma value. ### Claim 10 A liquid crystal display (LCD) device, comprising: an LCD panel; and a drive circuit controlling a display of the LCD panel; wherein the drive circuit comprises an adjusting equipment storing a display parameter; the adjusting equipment comprises an interface module connected with an external debugging equipment, and the display parameter of the adjusting equipment is adjustable. ### Claim 11 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the display parameter comprises a gamma value, and the adjusting equipment comprises a gamma correction unit having an adjustable gamma value. ### Claim 12 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the display parameter comprises a chroma value, and the adjusting equipment comprises a chroma correction unit having an adjustable chroma value. ### Claim 13 (depends on 10) The liquid crystal display (LCD) device of claim 10, wherein the display parameter comprises a. gamma value and a chroma value, the drive circuit comprises a timing control chip controlling the display of the LCD panel, and the adjusting equipment comprises a programmable voltage buffer unit having an adjustable gamma value and a storage unit storing the chroma value, the programmable voltage buffer unit and the storage unit are connected with the interface module; an output end of the storage unit is coupled with a chroma correction unit, and the chroma correction unit is integrated with the timing control chip; output signals of the timing control chip and the programmable voltage buffer unit are coupled to the LCD panel; the external debugging equipment writes the display parameters into the storage unit and the programmable voltage buffer unit through the interface module.