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WO2019076098A1 - 驱动方法、驱动装置及显示装置 - Google Patents

驱动方法、驱动装置及显示装置 Download PDF

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Publication number
WO2019076098A1
WO2019076098A1 PCT/CN2018/097601 CN2018097601W WO2019076098A1 WO 2019076098 A1 WO2019076098 A1 WO 2019076098A1 CN 2018097601 W CN2018097601 W CN 2018097601W WO 2019076098 A1 WO2019076098 A1 WO 2019076098A1
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WIPO (PCT)
Prior art keywords
pixels
charging duration
common voltage
digital signal
determining
Prior art date
Application number
PCT/CN2018/097601
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English (en)
French (fr)
Inventor
周留刚
褚怡芳
栗首
Original Assignee
京东方科技集团股份有限公司
合肥京东方显示技术有限公司
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Publication date
Application filed by 京东方科技集团股份有限公司, 合肥京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US16/328,934 priority Critical patent/US11250802B2/en
Publication of WO2019076098A1 publication Critical patent/WO2019076098A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3674—Details of drivers for scan electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a driving method, a driving device, and a display device.
  • the charging condition of the pixel closer to the source driving and the gate driving is different from the charging condition of the pixel farther from the source driving and the gate driving, and the distance source driving and the gate are different.
  • the pixels that drive farther from the pole have a delay due to the internal traces, and the pixels that are closer to the source drive and the gate drive receive the drive signal at different times, resulting in inconsistent pixel flicker and uneven brightness of the screen.
  • Embodiments of the present disclosure provide a driving method, a driving device, and a display device, and the specific solutions are as follows:
  • An embodiment of the present disclosure provides a driving method of a display panel, the method comprising:
  • the current row of pixels is driven with the common voltage value.
  • the driving method of the foregoing display panel determines the charging duration of the current row of pixels, and specifically includes:
  • the driving method of the display panel determines the common voltage value corresponding to the charging duration, and specifically includes:
  • the driving method of the display panel determines the digital signal of the common voltage corresponding to the charging duration, and specifically includes:
  • the digital signal of the common voltage corresponding to the current row of pixels is determined according to the correspondence relationship between the charging duration interval and the digital signal of the common voltage.
  • a digital signal of the corresponding common voltage is set.
  • the driving method of the display panel provided by the embodiment of the present disclosure further includes: if the charging duration of the next row of pixels of the current row of pixels is constant, driving the next row of pixels by using a common voltage value that drives the current row of pixels .
  • an embodiment of the present disclosure provides a driving device for a display panel, including:
  • a charging duration determining module configured to determine a charging duration of a current row of pixels
  • a common voltage value determining module configured to determine a common voltage value corresponding to the charging duration
  • a pixel drive module configured to drive the current row of pixels with the common voltage value.
  • the charging duration determining module specifically includes:
  • a data receiving circuit configured to receive at least one of the following parameters:
  • a data calculation circuit configured to calculate a charging duration of a current row of pixels using at least one of the above parameters.
  • the common voltage value determining module specifically includes:
  • a digital signal determining circuit configured to determine a digital signal of a common voltage corresponding to the charging duration
  • a digital to analog conversion circuit configured to convert the digital signal to an analog signal.
  • the digital signal determining module is specifically configured to:
  • the digital signal of the common voltage corresponding to the current row of pixels is determined according to the correspondence relationship between the charging duration interval and the digital signal of the common voltage.
  • the digital signal determining module is further configured to set the corresponding relationship by:
  • a digital signal of the corresponding common voltage is set.
  • the pixel driving module is further configured to:
  • the next row of pixels is driven by a common voltage value that drives the current row of pixels.
  • An embodiment of the present disclosure provides a driving device for a display panel, including:
  • a memory configured to store program instructions
  • a processor configured to invoke program instructions stored in the memory to perform the method of any of the above in accordance with the obtained program.
  • An embodiment of the present disclosure provides a computer storage medium storing computer executable instructions configured to cause the computer to perform the method of any of the above.
  • an embodiment of the present disclosure provides a display device, including the driving device of any of the above.
  • FIG. 1 is a schematic diagram showing a relationship between a pixel and a source driving and a gate driving of a display panel in the related art
  • FIG. 2 is a schematic flow chart of a driving method of a display panel according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a charging duration interval of a driving method of a display panel according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a correspondence relationship between a charging duration and a common voltage digital signal in a driving method of a display panel according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a driving device for a display panel according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a driving device of a display panel according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another driving device for a display panel according to an embodiment of the present disclosure.
  • the pixels on the display panel 01 are closer to the source drive 02 and the gate drive 04 than the source drive module 02 or the gate drive module 04 under the same charging duration.
  • the far far end B will exhibit different relative brightness.
  • the charging time is reduced by reducing the charging time of the pixel unit (for example, the A end) which is closer to the source driving 02 and the gate driving 04.
  • a pixel unit (for example, a B terminal) that is farther from the source driving 02 and the gate driving 04, thereby compensating for insufficient charging of the pixel unit farther from the source driving 02 and the gate driving 04 due to the delay of the internal wiring of the panel.
  • the problem is that the brightness of the picture becomes more uniform.
  • 07 is a Timing Controller (T-CON)
  • the source driver 02 is connected to the T-CON 07 through the wiring board 03 and the metal trace 06
  • the gate drive 04 is connected to the signal trace 05.
  • the charge compensation technology compensates for the charging time of the pixel unit that is closer to the source driving and the gate driving, and compensates the reduced charging time to the pixel unit farther from the source driving and the gate driving, thereby making up for the internal wiring of the panel.
  • the delay caused by the delay of the pixel drive from the source drive and the gate drive is made more uniform, so that the brightness of the picture becomes more uniform.
  • the appearance of charging compensation technology will cause the flicker of the picture to change with the change of the charging time. Since the charging duration of different rows of pixels is different, the voltage applied across the pixel alternates positively and negatively, resulting in positive pressure due to the difference of positive and negative voltages. It does not match the brightness produced by the panel during negative pressure, which causes the flicker of the display panel.
  • the driving method of the display panel provided by the embodiment of the present disclosure is as shown in FIG. 2, and the specific steps include:
  • the pixel of each row has the same charging duration.
  • determining the charging duration of the current row of pixels may calculate the charging duration of the current row of pixels by using at least one of the following parameters:
  • the distance parameter that is, the distance between the current line pixel and the gate drive and/or source drive on the main board
  • the difference parameter is the difference between the brightness of the current line pixel and the previous line of pixels.
  • Adjust the adjustable charging time range of each line that is, set a maximum charging time tmax and a minimum charging time tmin, compare the brightness data difference between the current line pixel and the previous line pixel, and further calculate the charging time of each line of pixels according to actual needs. .
  • the distance parameter and the difference parameter are separately set weights, and the two parameters and their corresponding weights are integrated to calculate the charging duration of each row of pixels.
  • the calculation method of the charging duration of the pixel is not limited to the above three methods. As long as the calculation method of accurately charging the charging time of different pixels is feasible, it can be designed as needed.
  • the public voltage value corresponding to the charging duration is determined in the embodiment of the present disclosure, which specifically includes:
  • a correspondence table between a pixel charging duration and a digital signal of the common voltage is set and stored in the digital signal determining circuit, and after determining the charging duration of the current row pixel in step S101, the digital signal passing through the charging duration of the pixel and the common voltage
  • the corresponding relationship table is searched to obtain a digital signal of the common voltage corresponding to the determined charging duration, and then the digital signal of the common voltage is input to the digital-to-analog conversion circuit to be converted into an analog signal of the corresponding common voltage, and the current line in step S102 is obtained.
  • the actual common voltage value corresponding to the charging duration of the pixel is set and stored in the digital signal determining circuit, and after determining the charging duration of the current row pixel in step S101, the digital signal passing through the charging duration of the pixel and the common voltage
  • the corresponding relationship table is searched to obtain a digital signal of the common voltage corresponding to the determined charging duration, and then the digital signal of the common voltage is input to the digital-to-analog conversion circuit to be
  • the digital signal of the common voltage corresponding to the charging duration is specifically included in the embodiment of the present disclosure, which specifically includes:
  • the digital signal of the common voltage corresponding to the current row of pixels is determined according to the correspondence relationship between the charging duration interval and the digital signal of the common voltage.
  • the charging period Vcom in the correspondence table shown in FIG. 4, finds the digital signal Vcom of the common voltage corresponding to the charging duration t of the current row pixel, and then converts the digital signal of the common voltage into a common through the digital-to-analog conversion circuit.
  • the analog signal of the voltage obtains the common voltage value corresponding to the current pixel charging duration.
  • the difference ⁇ t between the maximum charging time period tmax and the minimum charging time period tmin is divided into n equal parts, and specifically divided into how many charging time intervals, the theory The larger the upper n, the greater the accuracy of the adjustment of the common voltage value, and the better the adjustment effect. In actual application, it can be designed according to needs, and is not limited herein.
  • the charging duration of the pixel is not infinite, and is not infinitely small, and the charging duration of the pixel should be in a reasonable range. Therefore, in a specific implementation, the foregoing embodiment provides the foregoing.
  • a maximum charging time tmax and a minimum charging time tmin are set for the charging duration of the pixels, and the values of tmax and tmin are preset by the implementer, and the specific values of tmax and tmin can be determined according to the display panel. The performance or other reasonable factors are not limited here.
  • the adjustment of the common voltage value of each row of pixels is not infinite or infinitely small. Therefore, the adjustment of the common voltage value also has an adjustment range.
  • a maximum common voltage value Vtmax may be set for the maximum charging time tmax of the pixel, and a minimum common voltage value Vtmin is set for the minimum charging time tmin of the pixel, and the common voltage value determined by each row of pixels according to the charging duration thereof. Between Vtmin greater than or equal to Vtmax.
  • the values of Vtmax and Vtmin are obtained by the technicians through the pre-test to obtain the best common voltage value.
  • it can also be obtained by other technical means or methods, as long as it conforms to the principles of the present disclosure, it is not feasible here. Make a limit.
  • the charging time of the next row of pixels of the current row of pixels is driven by the common voltage value corresponding to the current row pixel charging duration. If the value is constant, the next row of pixels is driven by the common voltage value driving the current row of pixels; if the charging duration of the next row of pixels of the current row of pixels changes, the next row of pixels is driven by the common voltage value corresponding to the changed charging duration.
  • the charging duration after the pixel change of the next row is determined, and the next row of pixels is searched for in the correspondence table of the common voltage digital signal and the charging duration.
  • the digital signal of the common voltage corresponding to the changed charging duration is converted into the analog signal of the common voltage by the digital-to-analog conversion circuit, and the common voltage value corresponding to the charging duration after the pixel change of the next row is obtained.
  • the next row of pixels is driven with a common voltage value.
  • the embodiment of the present disclosure further provides the following devices:
  • an embodiment of the present disclosure provides a driving device for a display panel, the device comprising:
  • the charging duration determining module 31 is configured to determine a charging duration of the current row of pixels
  • the common voltage value determining module 32 is configured to determine a common voltage value corresponding to the charging duration
  • the pixel drive module 33 is configured to drive the current row of pixels with a common voltage value.
  • the charging duration determining module 31 determines a charging duration of the current row of pixels, and specifically includes:
  • a data receiving circuit configured to receive at least one of the following parameters:
  • a data calculation circuit configured to calculate a charging duration of a current row of pixels using at least one of the above parameters.
  • the common voltage value determining module 32 specifically includes:
  • a digital signal determining module configured to determine a digital signal of a common voltage corresponding to a charging duration
  • a digital to analog conversion circuit configured to convert a digital signal into an analog signal.
  • the digital signal determining module is specifically configured to:
  • the digital signal of the common voltage corresponding to the current row of pixels is determined according to the correspondence relationship between the charging duration interval and the digital signal of the common voltage.
  • the digital signal determining module is further configured to set the correspondence by:
  • a digital signal corresponding to the common voltage is set.
  • the pixel driving module 33 is further configured to:
  • the pixel driving module 33 drives the next row of pixels with a common voltage value that drives the current row of pixels.
  • the pixel driving module 33 is further configured to:
  • the third module 33 drives the next row of pixels with the common voltage value corresponding to the changed charging duration.
  • the charging duration determining module 31 can be divided into a data receiving circuit 502 and a data calculating circuit 503 .
  • the data receiving circuit 502 is configured to receive data input by the timing control module T-CON 501.
  • T-CON 501 is part of the display panel drive circuit, T-CON 501 sends the low-voltage differential signal (LVDS) format image signal to the front-end video signal processing circuit, and converts it into the display panel peripheral source.
  • the image data signal of the Reduced Swing Differential Signal (RSDS) format required for the pole drive and the gate drive integrated circuit, and also the drive control signal (STV, which is necessary for the operation of the source drive and the gate drive circuit) CKV, STH, CKH, POL), these signals are input to the pixel driving circuit around the display panel, and finally the image is displayed on the display panel.
  • RSDS Reduced Swing Differential Signal
  • STV drive control signal
  • the data receiving circuit 502 receives the data of the entire screen input by the T-CON 501
  • the data calculating circuit 503 receives the data receiving circuit 501.
  • the data of the entire picture is calculated based on the data of each line of pixels in the data of the entire picture, and the charging time of each line of pixels is calculated.
  • the charging duration of the current row of pixels may be calculated by using at least one of the following parameters:
  • the common voltage value determining module 32 can be divided into a digital signal determining circuit 504 and a digital-to-analog converting circuit 505.
  • the data calculation circuit 503 calculates the charging duration of each row of pixels, and the digital signal determining circuit 504 inputs each row according to the digital computing circuit 503.
  • the charging duration of the pixel determines the common voltage value corresponding to the charging duration of each row of pixels.
  • the charging duration interval with equal charging duration (t1, t2, t3, t4...tn+1 in the figure), that is, ⁇ t is divided into n equal parts, n ⁇ 2; wherein each charging duration interval corresponds to a digital signal of a different common voltage ( V1, V2, V3, V4...Vn+1), thereby obtaining a correspondence table of the charging time interval t of the pixel and the digital signal Vcom of the common voltage (Fig. 4).
  • the digital signal determining circuit 504 determines the digital signal of the common voltage corresponding to the charging duration interval of each row of pixels, and inputs the digital signal of the common voltage into the digital-to-analog conversion.
  • the circuit 505, the digital-to-analog conversion circuit 505 converts the digital signal of the common voltage into an analog signal of the common voltage, and obtains a common voltage value corresponding to the current pixel charging duration, which is input to the pixel driving module 33 and configured to drive the current row of pixels. .
  • FIG. 6 is only a schematic diagram of a preferred embodiment, and the modules or processes in the drawings are not necessarily required to implement the present invention.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.
  • the driving device of another display panel provided by the embodiment of the present disclosure includes:
  • the memory 700 is configured to store program instructions
  • the processor 710 is configured to invoke program instructions stored in the memory 700 to perform the following processes in accordance with the obtained program:
  • the current row of pixels is driven with a common voltage value.
  • determining a charging duration of the current row of pixels includes:
  • determining a common voltage value corresponding to the charging duration specifically includes:
  • determining the digital signal of the common voltage corresponding to the charging duration specifically includes:
  • the digital signal of the common voltage corresponding to the current row of pixels is determined according to the correspondence relationship between the charging duration interval and the digital signal of the common voltage.
  • a digital signal corresponding to the common voltage is set.
  • the processor 710 is further configured to: if the charging duration of the next row of pixels of the current row of pixels does not change, drive the next row of pixels with a common voltage value that drives the current row of pixels.
  • the processor 710 can be a central buried device (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (Complex Programmable Logic Device). , CPLD).
  • CPU central buried device
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • the embodiment of the present disclosure provides a computer storage medium storing computer executable instructions for causing the computer to perform the foregoing embodiments of the present disclosure. Any of the driving methods of the display panel.
  • the computer storage medium can be any available media or data storage device accessible by the computer, including but not limited to magnetic memory (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memories (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).
  • magnetic memory eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memories such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).
  • an embodiment of the present disclosure further provides a display device, including the driving device of any of the above display panels provided by the embodiments of the present disclosure.
  • the display device can be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • Other indispensable components of the display device are understood by those skilled in the art, and are not described herein, nor should they be construed as limiting the disclosure.
  • the foregoing solution provided by the embodiments of the present disclosure determines different common voltage values for pixels of different charging durations, and drives pixels of different charging durations with different common voltage values to eliminate the charging time caused by different charging periods.
  • the problem of flickering of the screen thereby achieving uniform display of the display area of the entire display panel, and improving the brightness uniformity of the entire panel.
  • embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

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Abstract

公开了一种驱动方法、驱动装置及显示装置，用以实现整个显示面板的显示区域的显示画面均匀，提高面板整体的亮度均一性。一种显示面板的驱动方法，包括：确定当前行像素的充电时长(S101)；确定充电时长对应的公共电压值(S102)；利用公共电压值驱动当前行像素(S103)。

Description

驱动方法、驱动装置及显示装置
本申请要求在2017年10月19日提交中国专利局、申请号为201710996605.4、发明名称为“一种驱动方法、驱动装置及显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及显示技术领域，尤其涉及一种驱动方法、驱动装置及显示装置。
背景技术
由于液晶面板的内部的布线位置不同，使得距离源极驱动和栅极驱动较近的像素充电情况与距离源极驱动和栅极驱动较远的像素的充电情况存在差异，距离源极驱动和栅极驱动较远的像素由于内部走线存在延迟，与距离源极驱动和栅极驱动较近的像素接收到驱动信号的时间不同，从而导致像素闪烁不一致，画面亮度不均。
发明内容
本公开实施例提供了一种驱动方法、驱动装置及显示装置，具体方案如下：
本公开实施例提供一种显示面板的驱动方法，该方法包括：
确定当前行像素的充电时长；
确定所述充电时长对应的公共电压值；
利用所述公共电压值驱动所述当前行像素。
可选地，本公开实施例提供的上述显示面板的驱动方法，确定当前行像素的充电时长，具体包括：
利用下列至少一个参数计算当前行像素的充电时长：
当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
当前行像素与前一行像素的亮度的差异性。
可选地，本公开实施例提供的上述显示面板的驱动方法，确定所述充电时长对应的公共电压值，具体包括：
确定所述充电时长对应的公共电压的数字信号；
将所述数字信号转换为模拟信号。
可选地，本公开实施例提供的上述显示面板的驱动方法，确定所述充电时长对应的公共电压的数字信号，具体包括：
确定当前行像素的充电时长所属的充电时长区间；
按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
可选地，本公开实施例提供的上述显示面板的驱动方法，所述对应关系是通过如下方式获得的：
确定最大充电时长tmax与最小充电时长tmin的差值Δt；
将所述Δt划分为n段充电时长区间；其中，n大于或等于2；
为每一段所述充电时长区间，设置对应的公共电压的数字信号。
可选地，本公开实施例提供的上述显示面板的驱动方法，还包括：若所述当前行像素的下一行像素的充电时长不变，则利用驱动当前行像素的公共电压值驱动下一行像素。
相应地，本公开实施例提供一种显示面板的驱动装置，包括：
充电时长确定模块，被配置为确定当前行像素的充电时长；
公共电压值确定模块，被配置为确定所述充电时长对应的公共电压值；
像素驱动模块，被配置为利用所述公共电压值驱动所述当前行像素。
可选地，本公开实施例提供的上述显示面板的驱动装置，所述充电时长确定模块具体包括：
数据接收电路，被配置为接收下列至少一个参数：
当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
当前行像素与前一行像素的亮度的差异性；
数据计算电路，被配置为利用至少一个上述参数计算当前行像素的充电时长。
可选地，本公开实施例提供的上述显示面板的驱动装置，所述公共电压值确定模块具体包括：
数字信号确定电路，被配置为确定所述充电时长对应的公共电压的数字信号；
数模转换电路，被配置为将所述数字信号转换为模拟信号。
可选地，本公开实施例提供的上述显示面板的驱动装置，所述数字信号确定模块具体被配置为：
确定当前行像素的充电时长所属的充电时长区间；
按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
可选地，本公开实施例提供的上述显示面板的驱动装置，所述数字信号确定模块还被配置为通过如下方式设置所述对应关系：
确定最大充电时长tmax与最小充电时长tmin的差值Δt；
将所述Δt划分为n段充电时长区间；其中，n大于或等于2；
为每一段所述充电时长区间，设置对应的公共电压的数字信号。
可选地，本公开实施例提供的上述显示面板的驱动装置，所述像素驱动模块还被配置为：
若所述当前行像素的下一行像素的充电时长不变，则利用驱动当前行像素的公共电压值驱动下一行像素。
本公开实施例提供一种显示面板的驱动装置，包括：
存储器，被配置为存储程序指令；
处理器，被配置为调用所述存储器中存储的程序指令，按照获得的程序执行上述任一所述的方法。
本公开实施例提供一种计算机存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令被配置为使所述计算机执行上 述任一项所述的方法。
相应地，本公开实施例提供一种显示装置，包括上述任一所述的驱动装置。
附图说明
图1为相关技术中显示面板的像素与源极驱动及栅极驱动的关系示意图；
图2为本公开实施例提供的一种显示面板的驱动方法流程示意图；
图3为本公开实施例提供的一种显示面板的驱动方法的充电时长区间示意图；
图4为本公开实施例提供的一种显示面板的驱动方法的充电时长及公共电压数字信号对应关系表示意图；
图5为本公开实施例提供的一种显示面板的驱动装置的结构示意图；
图6为本公开实施例提供的一种显示面板的驱动装置的具体结构示意图；
图7为本公开实施例提供的另一种显示面板的驱动装置的结构示意图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本公开保护的范围。
如图1所示，显示面板01上的像素，在相同的充电时长下，离源极驱动02及栅极驱动04较近的近端A和离源极驱动模块02或栅极驱动模块04较远的远端B会表现出不同的相对亮度，相关技术中，通过减少距离源极驱动02及栅极驱动04较近的像素单元(例如A端)的充电时间，将减少的充电时间补偿至距离源极驱动02及栅极驱动04较远的像素单元(例如B端)，从而弥补因面板内部走线的延迟导致的距离源极驱动02及栅极驱动04较远的像素单元充电不足的问题，使得画面的亮度变得更均匀。图1中07为时序控 制模块(Timming Controller，T-CON)，源极驱动02通过走线板03和金属走线06连接在T-CON 07上，栅极驱动04通过信号走线05连接到T-CON 07上。
充电补偿技术通过减少距离源极驱动及栅极驱动较近的像素单元的充电时间，将减少的充电时间补偿至距离源极驱动及栅极驱动较远的像素单元，从而弥补因面板内部走线的延迟导致的距离源极驱动及栅极驱动较远的像素单元充电不足的问题，使得画面的亮度变得更均匀。但充电补偿技术的出现会导致画面的闪烁随充电时长的变化而变化，由于不同行像素的充电时长不同，加在像素两端的电压，正负交替变化，由于正负电压的差异，导致正压与负压时面板产生的亮度不一致，这样就产生了显示面板的闪烁问题。
本公开实施例提供的一种显示面板的驱动方法，如图2所示，具体步骤包括：
S101、确定当前行像素的充电时长；
S102、确定所述充电时长对应的公共电压值；
S103、利用所述公共电压值驱动所述当前行像素。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，每行像素具有相同的充电时长。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，确定当前行像素的充电时长可以利用下列至少一个参数计算当前行像素的充电时长：
距离参数，即当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
差异性参数，即当前行像素与前一行像素的亮度的差异性。
下面举例说明。
方式一、
设定每行可调整的充电时间范围，即设置一个最大充电时长tmax及最小充电时长tmin，依据当前行像素距源极驱动和/或栅极驱动的距离参数大小，具体还可以结合实际需要计算每行像素的充电时长。
方式二、
设定每行可调整的充电时间范围，即设置一个最大充电时长tmax及最小充电时长tmin，对比当前行像素和上一行像素的亮度数据差异，进一步还可以根据实际需要计算每行像素的充电时长。
方式三、
综合方式一、方式二，根据实际需要，给距离参数和差异性参数分别设置权值，综合这两个参数及其对应的权值，计算每行像素的充电时长。
需要说明的是，像素的充电时长的计算方法并不限于上述三种方式，只要能准确得出不同像素的充电时长的计算方法都是可行的，可根据需要设计。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，确定充电时长对应的公共电压值，具体包括：
确定充电时长对应的公共电压的数字信号；
将数字信号转换为模拟信号。
具体地，在数字信号确定电路中设置并存储一个像素充电时长与公共电压的数字信号的对应关系表，经步骤S101确定当前行像素的充电时长后，通过在像素充电时长与公共电压的数字信号的对应关系表中查找，得到所确定的充电时长对应的公共电压的数字信号，再将该公共电压的数字信号输入数模转换电路转换为对应的公共电压的模拟信号，得到步骤S102中当前行像素的充电时长对应的实际的公共电压值。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，确定充电时长对应的公共电压的数字信号，具体包括：
确定当前行像素的充电时长所属的充电时长区间；
按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，上述对应关系是通过如下方式获得的：
确定最大充电时长tmax与最小充电时长tmin的差值Δt；
将Δt划分为n段充电时长区间；其中，n大于或等于2；
具体地，参见图3，给所有像素设置一个最大充电时长tmax和一个最小充电时长tmin，则最大充电时长tmax与最小充电时长tmin的差值Δt＝tmax-tmin，将Δt均分成至少两个充电时长相等的充电时长区间(图中t1，t2，t3，t4…tn+1)，即将Δt分为n等分，n≥2；其中每一个充电时长区间对应不同的公共电压的数字信号(V1，V2，V3，V4…Vn+1)，由此得到像素的充电时长区间t与公共电压的数字信号Vcom的对应关系表(如图4)，步骤S102中通过步骤S101中确定的当前行像素的充电时长Vcom，在如图4所示的对应关系表中查找该当前行像素的充电时长t对应的公共电压的数字信号Vcom，再经数模转换电路将该公共电压的数字信号转换为公共电压的模拟信号，得出当前行像素充电时长对应的公共电压值。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，将最大充电时长tmax与最小充电时长tmin的差值Δt分成n等分，具体分成多少个充电时长区间，理论上n越大，公共电压值调节的精度越大，调节效果越好，实际应用时，可以根据需要设计，在此不做限定。
需要说明的是，实际应用中，像素的充电时长不会无限大，也不会无限小，像素的充电时长应当在一个合理的范围中，因此，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，给像素的充电时长设定一个最大充电时长tmax和一个最小充电时长tmin，tmax和tmin的值由实施人员预先设定，tmax和tmin的具体数值的确定可以根据显示面板的性能或其他合理的因素设定，在此不做限定。
相应的，实际应用中，每一行像素的公共电压值的调节也不会无限大或者无限小，因此，公共电压值的调节也有一个调节范围，在本公开实施例提供上述显示面板的驱动方法中，在具体实施时，例如可以给像素的最大充电时长tmax设置一个最大公共电压值Vtmax，给像素的最小充电时长tmin设置一个最小公共电压值Vtmin，每一行像素根据其充电时长确定的公共电压值在大于等于Vtmin、小于等于Vtmax之间。具体实施时，Vtmax、Vtmin的值由 技术人员经过前期测试得出最佳的公共电压值，当然，也可以通过其他技术手段或方式得出，只要符合本公开原理都是可行的，在此不做限定。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，利用当前行像素充电时长对应的公共电压值驱动当前行像素后，若当前行像素的下一行像素的充电时长不变，则利用驱动当前行像素的公共电压值驱动下一行像素；若当前行像素的下一行像素的充电时长发生变化，则利用变化后的充电时长对应的公共电压值驱动下一行像素。
具体地，对于当前行像素的下一行像素，若下一行像素的充电时长发生变化，则确定下一行像素变化后的充电时长，在公共电压数字信号和充电时长的对应关系表中查找下一行像素变化后的充电时长对应的公共电压的数字信号，再经数模转换电路将该公共电压的数字信号转换为公共电压的模拟信号，得出下一行像素变化后的充电时长对应的公共电压值，利用公共电压值驱动下一行像素。
与上述方法相对应地，本公开实施例还提供了以下装置：
参见图5，在本公开实施例提供一种显示面板的驱动装置，该装置包括：
充电时长确定模块31，被配置为确定当前行像素的充电时长；
公共电压值确定模块32，被配置为确定充电时长对应的公共电压值；
像素驱动模块33，被配置为利用公共电压值驱动当前行像素。
可选地，充电时长确定模块31确定当前行像素的充电时长，具体包括：
数据接收电路，被配置为接收下列至少一个参数：
当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
当前行像素与前一行像素的亮度的差异性；
数据计算电路，被配置为利用至少一个上述参数计算当前行像素的充电时长。
可选地，公共电压值确定模块32具体包括：
数字信号确定模块，被配置为确定充电时长对应的公共电压的数字信号；
数模转换电路，被配置为将数字信号转换为模拟信号。
可选地，数字信号确定模块具体被配置为：
确定当前行像素的充电时长所属的充电时长区间；
按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
可选地，数字信号确定模块还被配置为通过如下方式设置对应关系：
确定最大充电时长tmax与最小充电时长tmin的差值Δt；
将Δt划分为n段充电时长区间；其中，n大于或等于2；
为每一段充电时长区间，设置对应的公共电压的数字信号。
可选地，像素驱动模块33还被配置为：
若当前行像素的下一行像素的充电时长不变，则像素驱动模块33利用驱动当前行像素的公共电压值驱动下一行像素。
可选地，像素驱动模块33还被配置为：
若当前行像素的下一行像素的充电时长发生变化，则第三模块33利用变化后的充电时长对应的公共电压值驱动下一行像素。
具体地，在具体实施时，如图6所示，在本公开实施例提供上述显示面板的驱动方法中，上述充电时长确定模块31可分为数据接收电路502和数据计算电路503。
具体地，在本公开实施例提供上述显示面板的驱动方法中，数据接收电路502被配置为接收时序控制模块T-CON 501输入的数据。
其中，T-CON 501是显示面板驱动电路的一部分，T-CON 501把前端视频信号处理电路送来低电压差分信号(Low-Voltage Differential Signaling，LVDS)格式的图像信号，转换为显示面板周边源极驱动和栅极驱动集成电路所需的低摆幅差分信号(Reduced Swing Differential Signal，RSDS)格式的图像数据信号，同时还输出源极驱动、栅极驱动电路工作必须的驱动控制信号(STV、CKV、STH、CKH、POL)，这些信号都输入到显示面板周围的像素驱动电路上，最终完成图像在显示面板上的显示。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方 法中，数据接收电路502接收T-CON 501输入的整幅画面的数据，数据计算电路503接收数据接收电路501传入的整幅画面的数据，根据整幅画面的数据中每一行像素的数据，计算出每一行像素的充电时长。具体地，可以利用下列至少一个参数计算当前行像素的充电时长：
当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
当前行像素与前一行像素的亮度的差异性。
进一步地，在具体实施时，如图6所示，在本公开实施例提供上述显示面板的驱动方法中，上述公共电压值确定模块32可分为数字信号确定电路504和数模转换电路505。
进一步地，在具体实施时，在本公开实施例提供上述显示面板的驱动方法中，数据计算电路503计算得出每行像素的充电时长，数字信号确定电路504根据数字计算电路503输入的每一行像素的充电时长，确定每一行像素的充电时长对应的公共电压值。
具体地，数字信号确定电路504给所有像素设置一个最大充电时长tmax和一个最小充电时长tmin，则最大充电时长tmax与最小充电时长tmin的差值Δt＝tmax-tmin，将Δt均分成至少两个充电时长相等的充电时长区间(图中t1，t2，t3，t4…tn+1)，即将Δt分为n等分，n≥2；其中每一个充电时长区间对应不同的公共电压的数字信号(V1，V2，V3，V4…Vn+1)，由此得到像素的充电时长区间t与公共电压的数字信号Vcom的对应关系表(如图4)。
具体地，在本公开实施例提供上述显示面板的驱动方法中，数字信号确定电路504确定了每一行像素的充电时长区间对应的公共电压的数字信号，并将公共电压的数字信号输入数模转换电路505，数模转换电路505将该公共电压的数字信号转换为公共电压的模拟信号，得出当前行像素充电时长对应的公共电压值，输入给像素驱动模块33，被配置为驱动当前行像素。
需要说明的是，本领域技术人员可以理解图6只是一个优选实施例的示意图，附图中的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描述 进行分布于实施例的装置中，也可以进行相应变化位于不同于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个模块，也可以进一步拆分成多个子模块。
参见图7，相应地，本公开实施例提供的另一种显示面板的驱动装置，包括：
存储器700，被配置为存储程序指令；
处理器710，被配置为调用存储器700中存储的程序指令，按照获得的程序执行下列过程：
确定当前行像素的充电时长；
确定充电时长对应的公共电压值；
利用公共电压值驱动当前行像素。
可选地，确定当前行像素的充电时长，具体包括：
利用下列至少一个参数计算当前行像素的充电时长：
当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
当前行像素与前一行像素的亮度的差异性。
可选地，确定充电时长对应的公共电压值，具体包括：
确定充电时长对应的公共电压的数字信号；
将数字信号转换为模拟信号。
可选地，确定充电时长对应的公共电压的数字信号，具体包括：
确定当前行像素的充电时长所属的充电时长区间；
按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
可选地，对应关系是通过如下方式获得的：
确定最大充电时长tmax与最小充电时长tmin的差值Δt；
将Δt划分为n段充电时长区间；其中，n大于或等于2；
为每一段充电时长区间，设置对应的公共电压的数字信号。
可选地，处理器710还被配置为：若当前行像素的下一行像素的充电时 长不变，则利用驱动当前行像素的公共电压值驱动下一行像素。
处理器710可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)。
相应地，本公开实施例提供的提供了一种计算机存储介质，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行上述本公开实施例提供的任一种显示面板的驱动方法。
计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
基于同一发明构思，本公开实施例还提供了一种显示装置，包括本公开实施例提供的上述任一种显示面板的驱动装置。该显示装置可以为：手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。对于该显示装置的其它必不可少的组成部分均为本领域的普通技术人员应该理解具有的，在此不做赘述，也不应作为对本公开的限制。
综上，本公开实施例提供的上述方案，通过给不同充电时长的像素确定不同的公共电压值，用不同的公共电压值驱动对应的不同充电时长的像素，消除因不同的充电时长带来的画面闪烁的问题，从而实现了整个显示面板的显示区域的画面均匀显示，提高了面板整体的亮度均一性。
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。

Claims (15)

  1. 一种显示面板的驱动方法，其中，包括：
    确定当前行像素的充电时长；
    确定所述充电时长对应的公共电压值；
    利用所述公共电压值驱动所述当前行像素。
  2. 如权利要求1所述的方法，其中，确定当前行像素的充电时长，具体包括：
    利用下列至少一个参数计算当前行像素的充电时长：
    当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
    当前行像素与前一行像素的亮度的差异性。
  3. 如权利要求1所述的方法，其中，确定所述充电时长对应的公共电压值，具体包括：
    确定所述充电时长对应的公共电压的数字信号；
    将所述数字信号转换为模拟信号。
  4. 如权利要求3所述的方法，其中，确定所述充电时长对应的公共电压的数字信号，具体包括：
    确定当前行像素的充电时长所属的充电时长区间；
    按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
  5. 如权利要求4所述的方法，其中，所述对应关系是通过如下方式获得的：
    确定最大充电时长tmax与最小充电时长tmin的差值Δt；
    将所述Δt划分为n段充电时长区间；其中，n大于或等于2；
    为每一段所述充电时长区间，设置对应的公共电压的数字信号。
  6. 如权利要求1所述的方法，其中，还包括：若所述当前行像素的下一行像素的充电时长不变，则利用驱动当前行像素的公共电压值驱动下一行像 素。
  7. 一种显示面板的驱动装置，其中，包括：充电时长确定模块，被配置为确定当前行像素的充电时长；
    公共电压值确定模块，被配置为确定所述充电时长对应的公共电压值；
    像素驱动模块，被配置为利用所述公共电压值驱动所述当前行像素；
    其中，所述充电时长确定模块的输出端与所述公共电压值确定模块的输入端相连；所述公共电压值确定模块的输出端与所述像素驱动模块的输入端相连。
  8. 如权利要求7所述的驱动装置，其中，所述充电时长确定模块具体包括：
    数据接收电路，被配置为接收下列至少一个参数：
    当前行像素与位于主板上的栅极驱动和/或源极驱动的距离；
    当前行像素与前一行像素的亮度的差异性；
    数据计算电路，被配置为利用至少一个上述参数计算当前行像素的充电时长。
  9. 如权利要求7所述的驱动装置，其中，所述公共电压值确定模块具体包括：数字信号确定电路，被配置为确定所述充电时长对应的公共电压的数字信号；
    数模转换电路，被配置为将所述数字信号转换为模拟信号。
  10. 如权利要求9所述的驱动装置，其中，所述数字信号确定电路具体被配置为：
    确定当前行像素的充电时长所属的充电时长区间；
    按照充电时长区间与公共电压的数字信号的对应关系，确定当前行像素所对应的公共电压的数字信号。
  11. 如权利要求10所述的驱动装置，其中，所述数字信号确定电路还被配置为通过如下方式设置所述对应关系：
    确定最大充电时长tmax与最小充电时长tmin的差值Δt；
    将所述Δt划分为n段充电时长区间；其中，n大于或等于2；
    为每一段所述充电时长区间，设置对应的公共电压的数字信号。
  12. 如权利要求7所述的驱动装置，其中，所述像素驱动模块还被配置为：
    若所述当前行像素的下一行像素的充电时长不变，则利用驱动当前行像素的公共电压值驱动下一行像素。
  13. 一种显示面板的驱动装置，其中，包括：
    存储器，被配置为存储程序指令；
    处理器，被配置为调用所述存储器中存储的程序指令，按照获得的程序执行权利要求1～6任一所述的方法。
  14. 一种计算机存储介质，其中，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令被配置为使所述计算机执行权利要求1至6任一项所述的方法。
  15. 一种显示装置，其中，包括权利要求7～14任一所述的驱动装置。
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