# US 11,114,050 B2 · Driving method and driving device of display panel, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,050 B2 - Document ID: US11114050B2 - Status: Granted - Kind: B2 - Application number: 17/029,260 - Filed: 2020-09-23 - Published: 2021-01-07 - Granted: 2021-09-07 - Earliest claimed: 2019-01-30 - Assignees: Hkc Corporation Limited - Applicants: Hkc Corporation Limited - Inventors: Jianfeng Shan - Web page: https://patentgrep.com/patent/US11114050B2 ## CPC - G09G 3/3607: {for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels (display of colours in flat matrix panels other than liquid crystal displays G09G3/2003; grey scales specific for television H04N3/127)} - G09G 3/3614: {Control of polarity reversal in general} - G09G 3/3677: {suitable for active matrices only} - G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components - G09G 2320/0242: Compensation of deficiencies in the appearance of colours - 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 Disclosed are a driving method, a display device, and a display equipment of a display panel. In the display array of the display panel of the present application, one row of subpixels have two different scanning drive signals, the odd-numbered column of the subpixels and the even-numbered column of the subpixels in one row are respectively driven by applying different scanning drive signals, each row of the subpixels are driven by applying two different scanning drive signals, and driving time of the scanning drive signal relative to a data drive signal is controlled to make each driving time of the two scanning drive signals be different from each other, thereby the color shift is reduced. ## Claims ### Claim 1 A driving method of a display panel, wherein the display panel comprises a display array comprising pixels arranged in an array, each of the pixels consisting of three subpixels; and the driving method of the display panel comprises: acquiring a first scanning drive signal, a second scanning drive signal and a preset data drive signal, reducing a drive time duration of the first scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to a drive time duration of the preset data drive signal, wherein the first scanning drive signal comprises a first main scanning signal and a first sub-scanning signal, and the second scanning drive signal includes a second main scanning signal and a second sub-scanning signal; and taking two adjacent rows of the subpixels being scanned as a driving cycle, driving an even-numbered column of the subpixels in a first row in the driving cycle by applying the first main scanning signal, and driving an odd-numbered column of the subpixels in the first row by applying the second main scanning signal; and driving an odd-numbered column of the subpixels in a second row in the driving cycle by applying the first sub-scanning signal and driving an even-numbered column of the subpixels in the second row by applying the second sub-scanning signal. ### Claim 2 (depends on 1) The driving method according to claim 1, wherein before the operation of acquiring a first scanning drive signal, a second scanning drive signal and a preset data drive signal, reducing a drive time duration of the first scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to a drive time duration of the preset data drive signal, the method further comprises: setting polarities of two adjacent ones of the subpixels opposite. ### Claim 3 (depends on 1) The driving method according to claim 1, wherein after the operation of taking two adjacent rows of the subpixels being scanned as a driving cycle, driving an even-numbered column of the subpixels in a first row in the driving cycle by applying the first main scanning signal, and driving an odd-numbered column of the subpixels in the first row by applying the second main scanning signal; and driving an odd-numbered column of the subpixels in a second row in the driving cycle by applying the first sub-scanning signal and an even-numbered column of the subpixels in the second row by applying the second sub-scanning signal, the method further comprises: driving two adjacent rows of the subpixels in a same column by applying a same data drive signal. ### Claim 4 (depends on 3) The driving method according to claim 3, wherein after the operation of driving two adjacent rows of the subpixels in a same column by applying a same data drive signal, the method further comprises: driving two adjacent ones of the subpixels in the same column by applying the preset data drive signal, which is an average value of historical drive signals of the two adjacent subpixels. ### Claim 5 (depends on 1) The driving method according to claim 1, wherein after the operation of acquiring a first scanning drive signal, a second scanning drive signal and a preset data drive signal, reducing a drive time duration of the first scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to a drive time duration of the preset data drive signal, the method further comprises: receiving an inversion signal, inverting the second scanning drive signal and the preset data drive signal according to the inversion signal, to obtain an inverted second scanning drive signal and an inverted preset data drive signal, and reducing a drive time duration of the inverted second scanning drive signal to make the drive time duration of the first scanning drive signal shortened with respect to drive time duration of the inverted preset data drive signal. ### Claim 6 (depends on 1) The driving method according to claim 1, wherein the pixel comprises a first pixel and a second pixel which are alternately arranged in a column direction, wherein the first pixel comprises a red subpixel, a green subpixel, a blue subpixel and a white subpixel which are sequentially arranged, and the second pixel comprises a blue subpixel, a white subpixel, a red subpixel and a green subpixel which are sequentially arranged; wherein the operation of taking two adjacent rows of the subpixels being scanned as a driving cycle, driving an even-numbered column of the subpixels in a first row in the driving cycle by applying the first main scanning signal, and driving an odd-numbered column of the subpixels in the first row by applying the second main scanning signal; and driving an odd-numbered column of the subpixels in a second row in the driving cycle by applying the first sub-scanning signal and an even-numbered column of the subpixels in the second row by applying the second sub-scanning signal, comprises: taking two adjacent rows of the subpixels being scanned as the driving cycle, driving the white subpixel and the green subpixel in the first row in the driving cycle by applying the first main scanning signal and the red subpixel and the blue subpixel in the first row in the driving cycle by applying the second main scanning signal; and driving the blue subpixel and the red subpixel in the second row in the driving cycle by applying the first sub-scanning signal and the white subpixel and the green subpixel in the second row in the driving cycle by applying the second sub-scanning signal. ### Claim 7 (depends on 6) The driving method according to claim 6, wherein the driving method further comprises: setting negative subpixels positive and positive subpixels negative, after each of the pixels in the second row in the driving cycle is driven by the first sub-scanning signal and the second sub-scanning signal. ### Claim 8 A driving device of display panel, wherein the display panel comprises a display array comprising pixels arranged in an array, each of the pixels consists of three subpixels; and the driving device of the display panel comprises: an acquiring circuit, configured to acquire a first scanning drive signal, a second scanning drive signal and a preset data drive signal, reducing a drive time duration of the first scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to a drive time duration of the preset data drive signal, wherein the first scanning drive signal comprises a first main scanning signal and a first sub-scanning signal, and the second scanning drive signal includes a second main scanning signal and a second sub-scanning signal; and a driving circuit, configured to take two adjacent rows of the subpixels being scanned as a driving cycle, drive an even-numbered column of the subpixels in a first row in the driving cycle by applying the first main scanning signal and drive an odd-numbered column of the subpixels in the first row by applying the second main scanning signal; and drive an odd-numbered column of the subpixels in a second row in the driving cycle by applying the first sub-scanning signal and drive an even-numbered column of the subpixels in the second row by applying the second sub-scanning signal. ### Claim 9 (depends on 8) The driving device according to claim 8, wherein polarities of two adjacent ones of the subpixels are opposite. ### Claim 10 (depends on 9) The driving device according to claim 9, wherein the driving circuit is configured to drive two adjacent rows of the subpixels in a same column by applying one data drive signal. ### Claim 11 (depends on 10) The driving device according to claim 10, wherein the driving circuit is configured to drive two adjacent ones of the subpixels in a same column by applying the preset data drive signal, which is an average value of historical drive signals of the two adjacent subpixels. ### Claim 12 (depends on 11) The driving device according to claim 11, wherein the pixel comprises a first pixel and a second pixel which are alternately arranged in a column direction, wherein the first pixel comprises a red subpixel, a green subpixel, a blue subpixel and a white subpixel which are sequentially arranged, and the second pixel comprises a blue subpixel, a white subpixel, a red subpixel and a green subpixel which are sequentially arranged; the driving circuit is configured to take two adjacent rows of the subpixels being scanned as a driving cycle and drive a white subpixel and a green subpixel in a first row of a driving cycle by applying the first main scanning signal and a red subpixel and a blue subpixel in the first row of a driving cycle by applying the second main scanning signal; and drive the blue subpixel and the red subpixel in the second row in the driving cycle by applying the first sub-scanning signal and the white subpixel and the green subpixel in the second row in the driving cycle by applying the second sub-scanning signal. ### Claim 13 (depends on 12) The driving device according to claim 12, wherein the driving circuit is configured to set a polarity of negative subpixels positive and a polarity of positive subpixels negative, after each of the pixels in the second row in the driving cycle being driven by the first sub-scanning signal and the second sub-scanning signal. ### Claim 14 A display device, wherein the display device comprises: a display panel, a memory, a processor, and an executable instruction of the display panel stored in the memory and executed by the processor, wherein the display panel comprises a display array comprising pixels arranged in an array, each of the pixels consisting of three subpixels, the processor executing the executable instruction to implement: acquiring a first scanning drive signal, a second scanning drive signal and a preset data drive signal, reducing drive time duration of the first scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to drive time of the preset data drive signal, wherein the first scanning drive signal comprises a first main scanning signal and a first sub-scanning signal, and the second scanning drive signal includes a second main scanning signal and a second sub-scanning signal; and taking two adjacent rows of the subpixels being scanned as a driving cycle, driving an even-numbered column of the subpixels in a first row of a driving cycle by applying the first main scanning signal, and driving an odd-numbered column of the subpixels in the first row by applying the second main scanning signal; and driving an odd-numbered column of the subpixels in a second row in the driving cycle by applying the first sub-scanning signal and driving an even-numbered column of the subpixels in the second row by applying the second sub-scanning signal. ### Claim 15 (depends on 14) The display device according to claim 14, wherein polarities of two adjacent ones of the subpixels are opposite. ### Claim 16 (depends on 15) The display device according to claim 15, wherein the processor executes the executable instruction to implement: driving two adjacent rows of the subpixels in a same column by applying one data drive signal. ### Claim 17 (depends on 16) The display device according to claim 16, wherein the processor executes the executable instruction to implement: driving two adjacent ones of the subpixels in a same column by applying the preset data drive signal, which is an average value of historical drive signals of the two adjacent subpixels. ### Claim 18 (depends on 17) The display device according to claim 17, wherein the processor executes the executable instruction to implement: receiving an inversion signal, inverting the second scanning drive signal and the preset data drive signal according to the inversion signal to obtain an inverted second scanning drive signal and an inverted preset data drive signal, and reducing a drive time of the inverted second scanning drive signal to make the drive time duration of the first scanning drive signal shorter with respect to drive time of the inverted preset data drive signal. ### Claim 19 (depends on 14) The display device according to claim 14, wherein the pixel comprises a first pixel and a second pixel which are alternately arranged in a column direction, wherein the first pixel comprises a red subpixel, a green subpixel, a blue subpixel and a white subpixel which are sequentially arranged, and the second pixel comprises a blue subpixel, a white subpixel, a red subpixel and a green subpixel which are sequentially arranged; the processor executes the executable instruction to implement: taking two adjacent rows of the subpixels being scanned as a driving cycle, driving the white subpixel and the green subpixel in the first row in the driving cycle by applying the first main scanning signal and the red subpixel and the blue subpixel in the first row in the driving cycle by applying the second main scanning signal; and driving the blue subpixel and the red subpixel in the second row in the driving cycle by applying the first sub-scanning signal and the white subpixel and the green subpixel in the second row in the driving cycle by applying the second sub-scanning signal. ### Claim 20 (depends on 19) The display device according to claim 19, wherein the processor executes the executable instruction to implement: setting a polarity of negative subpixels positive and a polarity of positive subpixels negative, after each of the pixels in the second row in the driving cycle being driven by the first sub-scanning signal and the second sub-scanning signal.