# US 12,190,778 B1 · Method for driving display panel, drive chip 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 12,190,778 B1 - Document ID: US12190778B1 - Status: Granted - Kind: B1 - Application number: 18/401,472 - Filed: 2023-12-30 - Granted: 2025-01-07 - Earliest claimed: 2023-09-28 - Assignees: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Jhenwei He; Yuhua Chang - Web page: https://patentgrep.com/patent/US12190778B1 ## CPC - G09G 3/2074: {using sub-pixels} - G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)} - 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 2320/0233: Improving the luminance or brightness uniformity across the screen - 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 A method for driving a display panel, a drive chip and a display device. A plurality of sub-pixels form sub-pixel rows and columns. Sub-pixels in a same row have a same color, and colors of the sub-pixels in each sub-pixel row is different from that of the sub-pixels in an adjacent row. The method includes driving the sub-pixels to display in frames. Each sub-pixel column includes a plurality of sub-pixel groups. 2n sub-pixels are provided between every two sub-pixel groups connected to a corresponding data line, and the 2n sub-pixels are connected to an another adjacent data line, with n being an integer greater than or equal to 0. In a same frame, among the sub-pixels, in any two adjacent sub-pixel columns, whose colors are the same and have the high grayscale data compensation state, at least one sub-pixel has a polarity different from that of other sub-pixels. ## Claims ### Claim 1 A method for driving a display panel, the display panel comprising a plurality of data lines and a plurality of sub-pixels electrically connected to the plurality of data lines; the plurality of the sub-pixels including a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, the plurality of sub-pixels being arranged in intersecting row and column directions to form a plurality of sub-pixel rows arranged in the column direction, and to form a plurality of sub-pixel columns arranged in the row direction, the plurality of sub-pixel rows including a plurality of first sub-pixel rows, a plurality of second sub-pixel rows, and a plurality of third sub-pixel rows that are alternately arranged, display colors of a plurality of the sub-pixels in a same one of the sub-pixel rows being the same, display colors of the sub-pixels in the first sub-pixel row, display colors of the sub-pixels in the second sub-pixel row, and display colors of the sub-pixels in the third sub-pixel row being different; the method comprising: driving a plurality of the sub-pixels to display in a plurality of frames, wherein each of the sub-pixels has one of a high grayscale data compensation state and a low grayscale data compensation state and has one of a positive polarity and a negative polarity in each of the frames; wherein each of the sub-pixel columns includes a plurality of sub-pixel groups including a first sub-pixel group, a third sub-pixel group, and a second sub-pixel group located between the first sub-pixel group and the third sub-pixel group, the first sub-pixel group and the third sub-pixel group being connected to a corresponding one of the data lines, the second sub-pixel group being connected to another adjacent one of the data lines and including 2n sub-pixels of the plurality of sub-pixels, with n being an integer greater than or equal to 0; wherein in a same frame, among a plurality of the sub-pixels, in any two adjacent ones of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, at least one of the sub-pixels has a polarity different from that of other ones of the sub-pixels. ### Claim 2 (depends on 1) The method of claim 1, wherein n is a positive integer, and wherein each of the sub-pixel groups includes 2n sub-pixels of the plurality of sub-pixels. ### Claim 3 (depends on 2) The method of claim 2, wherein polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels of the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines. ### Claim 4 (depends on 3) The method of claim 3, wherein n=1, and wherein among a plurality of the sub-pixels, in a same one of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, two adjacent ones of the sub-pixels have opposite polarities. ### Claim 5 (depends on 4) The method of claim 4, wherein, in a same frame, in a case that sub-pixels with a same display color and having the high grayscale data compensation state display a same grayscale, absolute values of average effective voltages of two adjacent ones of the data lines are the same. ### Claim 6 (depends on 1) The method of claim 1, wherein n=0, and wherein each of the sub-pixel columns is connected to a corresponding one of the data lines; polarities of a plurality of the sub-pixels in a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels in the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines. ### Claim 7 (depends on 1) The method of claim 1, wherein in a same one of the sub-pixel columns, grayscale data compensation states of two adjacent one of the sub-pixels are opposite; in a same one of the sub-pixel rows, the grayscale data compensation states of two adjacent ones of the sub-pixels alternate between being opposite and being the same. ### Claim 8 A drive chip configured to execute program instructions to implement a method for driving a display panel, the display panel comprising a plurality of data lines and a plurality of sub-pixels electrically connected to the plurality of data lines; the plurality of the sub-pixels including a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, the plurality of sub-pixels being arranged in intersecting row and column directions to form a plurality of sub-pixel rows arranged in the column direction, and to form a plurality of sub-pixel columns arranged in the row direction, the plurality of sub-pixel rows including a plurality of first sub-pixel rows, a plurality of second sub-pixel rows, and a plurality of third sub-pixel rows that are alternately arranged, display colors of a plurality of the sub-pixels in a same one of the sub-pixel rows being the same, display colors of the sub-pixels in the first sub-pixel row, display colors of the sub-pixels in the second sub-pixel row, and display colors of the sub-pixels in the third sub-pixel row being different; the method comprising: driving a plurality of the sub-pixels to display in a plurality of frames, wherein each of the sub-pixels has one of a high grayscale data compensation state and a low grayscale data compensation state and has one of a positive polarity and a negative polarity in each of the frames; wherein each of the sub-pixel columns includes a plurality of sub-pixel groups including a first sub-pixel group, a third sub-pixel group, and a second sub-pixel group located between the first sub-pixel group and the third sub-pixel group, the first sub-pixel group and the third sub-pixel group being connected to a corresponding one of the data lines, the second sub-pixel group being connected to another adjacent one of the data lines and including 2n sub-pixels of the plurality of sub-pixels, with n being an integer greater than or equal to 0; wherein in a same frame, among a plurality of the sub-pixels, in any two adjacent ones of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, at least one of the sub-pixels has a polarity different from that of other ones of the sub-pixels. ### Claim 9 (depends on 8) The drive chip of claim 8, wherein n is a positive integer, and wherein each of the sub-pixel groups includes 2n sub-pixels of the plurality of sub-pixels. ### Claim 10 (depends on 9) The drive chip of claim 9, wherein polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels of the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines. ### Claim 11 (depends on 10) The drive chip of claim 10, wherein n=1, and wherein among a plurality of the sub-pixels, in a same one of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, two adjacent ones of the sub-pixels have opposite polarities. ### Claim 12 (depends on 11) The drive chip of claim 11, wherein, in a same frame, in a case that sub-pixels with a same display color and having the high grayscale data compensation state display a same grayscale, absolute values of average effective voltages of two adjacent ones of the data lines are the same. ### Claim 13 (depends on 8) The drive chip of claim 8, wherein n=0, and wherein each of the sub-pixel columns is connected to a corresponding one of the data lines; polarities of a plurality of the sub-pixels in a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels in the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines. ### Claim 14 (depends on 8) The drive chip of claim 8, wherein in a same one of the sub-pixel columns, grayscale data compensation states of two adjacent one of the sub-pixels are opposite; in a same one of the sub-pixel rows, the grayscale data compensation states of two adjacent ones of the sub-pixels alternate between being opposite and being the same. ### Claim 15 A display device comprising: a display panel; and a drive chip electrically connected to the display panel and configured to execute program instructions to implement a method for driving a display panel, the display panel comprising a plurality of data lines and a plurality of sub-pixels electrically connected to the plurality of data lines; the plurality of the sub-pixels including a plurality of first sub-pixels, a plurality of second sub-pixels, and a plurality of third sub-pixels, the plurality of sub-pixels being arranged in intersecting row and column directions to form a plurality of sub-pixel rows arranged in the column direction, and to form a plurality of sub-pixel columns arranged in the row direction, the plurality of sub-pixel rows including a plurality of first sub-pixel rows, a plurality of second sub-pixel rows, and a plurality of third sub-pixel rows that are alternately arranged, display colors of a plurality of the sub-pixels in a same one of the sub-pixel rows being the same, display colors of the sub-pixels in the first sub-pixel row, display colors of the sub-pixels in the second sub-pixel row, and display colors of the sub-pixels in the third sub-pixel row being different; the method comprising: driving a plurality of the sub-pixels to display in a plurality of frames, wherein each of the sub-pixels has one of a high grayscale data compensation state and a low grayscale data compensation state and has one of a positive polarity and a negative polarity in each of the frames; wherein each of the sub-pixel columns includes a plurality of sub-pixel groups including a first sub-pixel group, a third sub-pixel group, and a second sub-pixel group located between the first sub-pixel group and the third sub-pixel group, the first sub-pixel group and the third sub-pixel group being connected to a corresponding one of the data lines, the second sub-pixel group being connected to another adjacent one of the data lines and including 2n sub-pixels of the plurality of sub-pixels, with n being an integer greater than or equal to 0; wherein in a same frame, among a plurality of the sub-pixels, in any two adjacent ones of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, at least one of the sub-pixels has a polarity different from that of other ones of the sub-pixels. ### Claim 16 (depends on 15) The display device of claim 15, wherein n is a positive integer, and wherein each of the sub-pixel groups includes 2n sub-pixels of the plurality of sub-pixels. ### Claim 17 (depends on 16) The display device of claim 16, wherein polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels of the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines. ### Claim 18 (depends on 17) The display device of claim 17, wherein n=1, and wherein among a plurality of the sub-pixels, in a same one of the sub-pixel columns, whose display colors are the same and have the high grayscale data compensation state, two adjacent ones of the sub-pixels have opposite polarities. ### Claim 19 (depends on 18) The display device of claim 18, wherein, in a same frame, in a case that sub-pixels with a same display color and having the high grayscale data compensation state display a same grayscale, absolute values of average effective voltages of two adjacent ones of the data lines are the same. ### Claim 20 (depends on 15) The display device of claim 15, wherein n=0, and wherein each of the sub-pixel columns is connected to a corresponding one of the data lines; polarities of a plurality of the sub-pixels in a plurality of the sub-pixel groups connected to a same one of the data lines are the same, and the polarities of the plurality of the sub-pixels in the plurality of the sub-pixel groups connected to the same data line are opposite to polarities of a plurality of the sub-pixels of a plurality of the sub-pixel groups connected to another adjacent one of the data lines.