WO2020107558A1 - 液晶像素的充电方法、显示面板及存储介质 - Google Patents

液晶像素的充电方法、显示面板及存储介质 Download PDF

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Publication number
WO2020107558A1
WO2020107558A1 PCT/CN2018/121839 CN2018121839W WO2020107558A1 WO 2020107558 A1 WO2020107558 A1 WO 2020107558A1 CN 2018121839 W CN2018121839 W CN 2018121839W WO 2020107558 A1 WO2020107558 A1 WO 2020107558A1
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Prior art keywords
pixel
row
rows
charging
current frame
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PCT/CN2018/121839
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English (en)
French (fr)
Inventor
李汶欣
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惠科股份有限公司
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Priority to US17/042,707 priority Critical patent/US11763768B2/en
Publication of WO2020107558A1 publication Critical patent/WO2020107558A1/zh

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Classifications

    • 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
    • G09G3/3674—Details of drivers for scan electrodes
    • G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G09G2310/0213—Addressing of scan or signal lines controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/04—Partial updating of the display 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
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
    • 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

Definitions

  • the present application relates to the technical field of liquid crystal display, and in particular to a method for charging liquid crystal pixels, a display panel, and a computer-readable storage medium.
  • the display panel is driven by turning on each row of pixels row by row and charging.
  • the specific implementation method is that each gate row of the display panel receives a line scan signal, and each time a rising edge of a clock generates a digital signal, and each digital signal corresponds to an output, and then through digital-to-analog conversion, the high and low levels Converted to the high and low voltage we need, the display panel is opened line by line, and then charged through the pixel electrode.
  • the pre-charge technology can be enabled to enable the line scan signal to be turned on in advance, while the current line is conventionally charged, the next line is pre-charged Charging allows the pixels to charge to the required potential faster within their actual charging time.
  • the subsequent pixel row can be both pre-charged and conventionally charged, while the previous pixel row is only conventionally charged, and Failure to perform pre-charging will result in the pixel rows that are only subjected to conventional charging to be brighter and darker than other rows, thereby making the overall display of the display panel poor.
  • the main purpose of the present application is to provide a liquid crystal pixel charging method, a display panel, and a computer-readable storage medium, which improve the charging effect of the display panel.
  • the present application provides a method for charging liquid crystal pixels.
  • the method for charging liquid crystal pixels includes the following steps:
  • a target pixel row corresponding to the currently charged pixel row is acquired, and the target pixel row is precharged, and the charging sequence of the target pixel row is later than the currently charged pixel row.
  • the step of pre-charging a preset number of pixel rows sequentially from the initial pixel row of the current frame includes:
  • a scan voltage is sequentially provided to the gate lines corresponding to the preset number of pixel rows to pre-charge the preset number of pixel rows.
  • the step of sequentially supplying a scanning voltage to the gate lines corresponding to the preset number of pixel rows starting from the initial pixel row of the current frame includes:
  • the gate lines corresponding to the preset number of pixel rows are sequentially turned on according to the frame start signal to provide a scanning voltage to the gate lines.
  • the step of acquiring the target pixel row corresponding to the currently charged pixel row includes:
  • the target pixel row corresponding to the currently charged pixel row is acquired according to a preset formula and the preset number.
  • the preset number is two lines
  • the step of sequentially precharging the preset number of pixel lines from the initial pixel line of the current frame includes:
  • the step of obtaining the target pixel row corresponding to the currently charged pixel row includes:
  • the second row of pixel rows after the currently charged pixel row is acquired as the target pixel row.
  • the step of pre-charging the first two rows of pixels in sequence starting from the initial row of pixels in the current frame includes:
  • the scanning starts from the initial gate line line of the current frame and sequentially provides scanning for the first four rows of gate line lines Voltage to pre-charge the first two rows of pixels.
  • the step of pre-charging the first two rows of pixels in sequence starting from the initial row of pixels in the current frame includes:
  • liquid crystal pixel adopts a single gate line drive design
  • the number of remaining timing lines of the row clock signal of the previous frame is two lines, starting from the initial gate line line of the current frame, scanning is sequentially provided to the gate line lines of the previous two lines Voltage to pre-charge the first two rows of pixels.
  • the steps of sequentially charging all pixel rows include:
  • the pixel switch corresponding to the gate line is turned on to charge the pixel row corresponding to the gate line.
  • the present application also provides a display panel, the display panel includes:
  • the display panel includes a memory, a processor, and a charging program of a liquid crystal pixel stored on the memory and executable on the processor.
  • the charging program of the liquid crystal pixel is executed by the processor, the liquid crystal is implemented as described above Steps of pixel charging method.
  • the present application also provides a computer-readable storage medium on which a charging program for liquid crystal pixels is stored.
  • the charging program for liquid crystal pixels is executed by a processor, the liquid crystal pixels are implemented as described above The steps of the charging method.
  • the liquid crystal pixel charging method, display panel and computer-readable storage medium start from the initial pixel row of the current frame and precharge a preset number of pixel rows in sequence; when the current frame starts charging, the initial pixel At the beginning of the row, charge all the pixel rows in sequence; when charging each pixel row, obtain the target pixel row corresponding to the currently charged pixel row, precharge the target pixel row, and charge the target pixel row The order is later than the currently charged pixel row.
  • FIG. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present application
  • FIG. 2 is a schematic flowchart of an embodiment of a method for charging a liquid crystal pixel of the present application
  • FIG. 3 is a schematic flowchart of another embodiment of a method for charging a liquid crystal pixel of the present application
  • FIG. 4 is a schematic flowchart of still another embodiment of a method for charging a liquid crystal pixel of this application;
  • FIG. 5 is a schematic flowchart of another embodiment of a method for charging a liquid crystal pixel of the present application
  • FIG. 6 is an exemplary diagram of an embodiment of a method for charging a liquid crystal pixel of the present application.
  • This application provides a method for charging liquid crystal pixels.
  • the pixel rows are When charging in the current frame, a better charging effect can be achieved, which solves the problem of insufficient charging of the display panel caused by insufficient charging of some pixel rows, and further solves the problem of poor display effect of the screen caused by insufficient charging of the display panel .
  • FIG. 1 is a schematic diagram of a hardware operating environment of a terminal according to an embodiment of the present application
  • the terminal in the embodiment of the present application may be a liquid crystal display panel or a display panel control device.
  • the terminal may include: a processor 1001, such as a CPU, a memory 1002, and a communication bus 1003.
  • the communication bus 1003 is configured to implement connection communication between the components in the terminal.
  • the memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as disk storage.
  • the memory 1002 may optionally be a storage device independent of the foregoing processor 1001.
  • FIG. 1 does not constitute a limitation on the terminal in the embodiments of the present application, and may include more or fewer components than those illustrated, or combine certain components, or different components Layout.
  • the memory 1002 as a computer storage medium may include a charging program for liquid crystal pixels.
  • the processor 1001 may be set to call the charging program of the liquid crystal pixels stored in the memory 1002, and perform the following operations:
  • a target pixel row corresponding to the currently charged pixel row is acquired, and the target pixel row is precharged, and the charging sequence of the target pixel row is later than the currently charged pixel row.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • a scan voltage is sequentially provided to the gate lines corresponding to the preset number of pixel rows to pre-charge the preset number of pixel rows.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • the gate lines corresponding to the preset number of pixel rows are sequentially turned on according to the frame start signal to provide a scanning voltage to the gate lines.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • the target pixel row corresponding to the currently charged pixel row is acquired according to a preset formula and the preset number.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • the step of obtaining the target pixel row corresponding to the currently charged pixel row includes:
  • the second row of pixel rows after the currently charged pixel row is acquired as the target pixel row.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • the scanning starts from the initial gate line line of the current frame and sequentially provides scanning for the first four rows of gate line lines Voltage to pre-charge the first two rows of pixels.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • liquid crystal pixel adopts a single gate line drive design
  • the number of remaining timing lines of the row clock signal of the previous frame is two lines, starting from the initial gate line line of the current frame, scanning is sequentially provided to the gate line lines of the previous two lines Voltage to pre-charge the first two rows of pixels.
  • the processor 1001 can call the charging program of the liquid crystal pixels stored in the memory 1002, and also perform the following operations:
  • the pixel switch corresponding to the gate line is turned on to charge the pixel row corresponding to the gate line.
  • the method for charging the liquid crystal pixels includes:
  • Step S10 Starting from the initial pixel row of the current frame, pre-charging a preset number of pixel rows in sequence.
  • the TFT-LCD thin film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display) is one of the main varieties of flat panel displays, and has become an important display platform in modern IT and video products.
  • the main driving principle of TFT-LCD the system motherboard connects the R/G/B compressed signal, control signal and power to the connector on the PCB through the wire, and the data passes through the TCON-IC timing controller (Timing on the PCB) Controller), through the PCB board, through S-COF (Source-Chip on Film) and G-COF (Gate-Chip on Film) is connected to the display area so that the LCD can obtain the required power and signals.
  • the display panel is driven by turning on each row of pixels row by row and charging them.
  • the specific implementation method is that each gate row of the display panel, that is, the gate line corresponding to each pixel row receives a row scan signal, and a digital signal is generated every time the rising edge of a clock passes, and each digital signal corresponds to an output.
  • the high and low levels are converted to the high and low voltages we need, so that the display panel is opened line by line, and then charged through the pixel electrode.
  • the pre-charge technology can be enabled to enable the line scan signal to be turned on in advance, while the current line is conventionally charged, the next line is pre-charged Charging allows the pixels to charge to the required potential faster within their actual charging time.
  • the picture displayed on each frame of the display panel can be controlled correspondingly by the frame clock signal 10 and the line clock signal 20, where one cycle of the frame clock signal 10 corresponds to the display period of one frame of picture, and one of the frame clock signal 10 During the period, the high level display is valid, and the row clock signal 20 can be under the control of the frame clock signal 10.
  • each pulse of the row clock signal 20 can be correspondingly turned on a gate line control, Correspondingly output a row scan signal to provide a scan voltage to the gate line.
  • the HD display panel model has 1366*768 pixels, corresponding to 768 pixel rows, and when the HD display model uses a single grid line drive design, it corresponds to 768 rows of grid lines Line, that is, when the frame clock signal of each frame is output at a high level, the line clock signal corresponds to 768 rising pulses, and according to the single-gate line drive design protocol of the HD display panel model, in the display period of a frame There are 806 rising pulses in the horizontal clock signal, that is, 38 rising pulses in the horizontal clock signal correspond to the low-level output of the frame clock signal. Therefore, it starts at the 769th rising edge of the horizontal clock signal for each frame of the picture. The scanning voltage is then provided to the gate line of the current frame.
  • the HD display model adopts a double-gate line drive design
  • there are 1536 rows of gate lines that is, when the frame clock signal of each frame is output at a high level, the row clock signal corresponds to 1536 rising pulses
  • the dual-gate line drive design protocol of the display panel model has a total of 1612 rising pulses in the display period of a frame, that is, 76 rising pulses in the row clock signal correspond to the low level output of the frame clock signal, so At the beginning of the 1537th rising edge of the line clock signal of each frame, there is no need to supply the scanning voltage to the gate line of the current frame.
  • some pixel lines have characteristics of the pre-charging protocol (when the current pixel line is charged, only the pixel lines arranged after the current pixel line can be pre-charged.)
  • the line clock signal When the frame clock signal of the previous picture is at a low level output, the line clock signal also has some The rising pulse, that is, the row clock signal is still clocking, pre-charges the pixel row that cannot be pre-charged in the current frame.
  • the initial pixel row of the current frame Initially, pre-charge a preset number of pixel rows of the current frame. For example, when the preset number is two rows, the first row and the second row of pixel rows of the current frame are precharged.
  • a scan voltage is sequentially provided to the gate lines corresponding to the preset number of pixel rows to The preset number of pixel rows are pre-charged.
  • Step S20 When the current frame starts to be charged, starting from the initial pixel row, sequentially charge all pixel rows.
  • the gate line corresponding to each pixel row is turned on in turn according to the row clock signal of the current frame
  • the pixel switch corresponding to the gate line is turned on to charge the pixel row corresponding to the gate line.
  • the frame clock signal of the current frame corresponds to a high level Output.
  • the frame start signal is a signal that controls the charging of each frame of the picture. Starting from the rising edge of the frame start signal, the display panel can start from the initial gate line row by row according to the frequency of the row clock signal. Open the grid line.
  • Step S30 When charging each pixel row, obtain a target pixel row corresponding to the currently charged pixel row, and precharge the target pixel row, and the charging sequence of the target pixel row is later than the currently charged pixel row .
  • the charging sequence of the target pixel row is later than the currently charged pixel row, that is, the target pixel row is arranged in the pixel row after the current pixel row.
  • the currently charged pixel row may have a preset correspondence with the target pixel row. Specifically, according to a preset formula and the preset number, the target pixel row corresponding to the currently charged pixel row can be obtained.
  • the preset formula is as follows:
  • N is the number of arranged rows of currently charged pixel rows
  • M is the preset number, that is, the target pixel row is arranged in the Mth row of pixel rows after the currently charged pixel row, and the currently charged pixel row is the Nth row
  • the target pixel row is the pixel row of the Sth row.
  • the first M rows of pixel rows of the current frame have been pre-charged before the current frame starts to be charged, therefore, when each row of pixel rows of the current frame is charged, by acquiring the Mth row of pixels after the current pixel row As a target pixel row, it can ensure that all pixel rows of the current frame are charged uniformly, that is, according to a preset formula and the preset number, the target pixel row corresponding to the currently charged pixel row is acquired, and the The target pixel rows are pre-charged to ensure uniform charging of all pixel rows of the current frame.
  • starting from the initial pixel row of the current frame pre-charging a preset number of pixel rows in sequence; when starting charging in the current frame, starting from the initial pixel row, sequentially charging all pixel rows; When charging each pixel row, the target pixel row corresponding to the currently charged pixel row is acquired, and the target pixel row is precharged, and the charging sequence of the target pixel row is later than the currently charged pixel row.
  • the step of pre-charging a preset number of pixel rows in sequence starting from the initial pixel row of the current frame includes :
  • Step S40 Starting from the initial pixel row of the current frame, sequentially provide a scan voltage to the gate lines corresponding to the preset number of pixel rows to pre-charge the preset number of pixel rows.
  • Step S50 Generate a frame start signal when the remaining timing lines of the previous frame clock signal are equal to the number of gate lines corresponding to the preset number of pixel lines.
  • Step S51 Turn on the gate lines corresponding to the preset number of pixel rows in sequence according to the frame start signal to provide the gate lines with a scanning voltage.
  • the current before the picture of the current frame starts to be charged, that is, before the arrival of the frame start signal corresponding to the current frame, during the period when the frame clock signal of the picture of the previous frame corresponds to the low level output, the current The initial pixel row of the frame starts, and a preset number of pixel rows of the current frame are precharged. For example, when the preset number is two rows, the first row and the second row of pixel rows of the current frame are precharged.
  • the row clock signal corresponding to the low level output period of the frame clock signal of the previous frame is acquired, and the HD type display driven by the double gate line Taking the panel as an example, the corresponding row clock signal during the low-level output of the frame clock signal of the previous frame starts from the 1537th rising edge of the row clock signal.
  • a frame start signal is generated when the remaining timing rows of the row clock signal of the previous frame are equal to the number of gate line rows corresponding to the preset number of pixel rows Taking an HD display panel driven by double gate lines as an example, when the preset number is two rows, it corresponds to four rows of gate line rows, and the row clock signal of each frame of the display panel has 1612 row timing signals, that is, in When the 1609th rising edge of the row clock signal of the previous frame starts, a new frame start signal is generated to control the opening of the gate line corresponding to a preset number of pixel rows.
  • the rising edge of the newly generated frame start signal coincides with the 1609th rising edge of the row clock signal of the previous frame, that is, starts at the 1609th rising edge of the row clock signal of the previous frame, each rising edge Correspondingly output a line scan signal to provide a scan voltage to the first four rows of the gate line of the current frame line by line to pre-charge the preset number of pixel lines.
  • the display panel Since the rising edge of the start signal of each frame is equivalent to the start signal of the charging of each frame, that is, the rising edge of the start signal of each frame arrives, the display panel will control the display screen to recharge from the initial grid line, so , When the remaining timing lines of the previous frame clock signal are equal to the number of gate lines corresponding to the preset number of pixel lines, a frame start signal is generated correspondingly, which can accurately control the current frame that needs to be precharged in advance The pixel rows are pre-charged.
  • a new frame start signal is generated, which can achieve the first two rows of pixels of the current frame before the frame start signal of the current frame arrives.
  • the corresponding first four rows of grid lines are precharged.
  • the frame start signal of the current frame has just arrived, and it can start from the initial grid lines of the current frame, in order.
  • the pixel row corresponding to the gate line row is charged.
  • the preset number is two lines, and the presets are sequentially set from the initial pixel line of the current frame.
  • the steps of pre-charging the number of pixel rows include:
  • Step S60 Starting from the initial pixel row of the current frame, pre-charge the pixel rows of the first two rows in sequence.
  • the step of obtaining the target pixel row corresponding to the currently charged pixel row includes:
  • Step S70 When charging each pixel row, acquire the second row of pixel rows after the currently charged pixel row as the target pixel row.
  • the screen display of the liquid crystal display panel needs to be driven by the polarity inversion between the two frames before and after the screen
  • the second row arranged after the current pixel row is obtained
  • the pixel row is used as the target pixel row, and pre-charging the target pixel row can improve the influence of the voltage caused by the polarity inversion, thereby making the current frame get a good charging effect.
  • the second row arranged after the current pixel row is precharged.
  • the following pixel rows can be charged and precharged, so Before the current frame starts to be charged, pre-charging the first two rows of pixels in the current frame can achieve uniform charging of the entire picture of the current frame.
  • each pixel row of the HD-type display panel driven by double gate lines corresponds to two rows of gate lines. Since the double-line drive HD display panel has a row clock signal of 1612 lines per frame, when the remaining clock lines of the previous frame clock signal are four lines, that is, the row clock signal of the previous frame At the beginning of the 1609th rising edge, by generating a new frame start signal, it is possible to start from the initial gate line row of the current frame and sequentially provide scanning voltages to the first four rows of gate line rows to perform the first two rows of pixel rows. Precharge.
  • the rising edge of the newly generated frame start signal coincides with the 1609th rising edge of the row clock signal of the previous frame, that is, starts at the 1609th rising edge of the row clock signal of the previous frame, each rising edge Correspondingly output a line scanning signal to provide a scanning voltage to the first four rows of the gate line of the current frame row by row to pre-charge the first two rows of pixel lines of the current frame.
  • the output sequence of the corresponding four scanning voltages can be (+, -, -, +) or (-, +, +, -).
  • each pixel row of the HD-type display panel driven by a single gate line corresponds to a row of gate lines. Since the frame clock signal of each frame of the HD display panel driven by a single gate line has 806 line timing signals, when the number of remaining timing lines of the line clock signal of the previous frame is two lines, that is, the line clock signal of the previous frame At the beginning of the 805th rising edge, by generating a new frame start signal, it is possible to start from the initial gate line row of the current frame and sequentially provide a scanning voltage to the first two rows of gate line rows to perform the first two rows of pixel rows. Precharge.
  • the single-gate line driven HD display panel may be a single-gate line wiring display panel, that is, one row of pixel rows corresponds to one row of gate line rows; the single-gate line driven HD type display panel may also be Double-gate line wiring, single-gate line odd-even drive display panel, that is, one row of pixel rows corresponds to one odd-numbered gate line row and one even-numbered gate line row, when the odd-frame picture, the odd-numbered gate line drives the corresponding pixel row In the picture, the corresponding pixel rows are driven by the even row gate lines.
  • the rising edge of the newly generated frame start signal coincides with the 805th rising edge of the row clock signal of the previous frame, that is, starts at the 805th rising edge of the row clock signal of the previous frame, each rising edge Correspondingly output a line scan signal to provide a scan voltage line by line to the gate lines of the first two lines of the current frame to pre-charge the pixel lines of the previous two lines of the current frame.
  • the first two rows of pixel rows are precharged in sequence, and when each pixel row is charged, the currently charged pixel row is obtained
  • the second row of pixel rows is used as the target pixel row, and the target pixel row is precharged.
  • the step of charging all the pixel rows in sequence starting from the initial pixel row when charging starts in the current frame include:
  • Step S80 When charging starts in the current frame, starting from the initial pixel row, turn on the gate lines corresponding to each pixel row in sequence according to the row clock signal of the current frame.
  • Step S81 When the gate line corresponding to each pixel row is turned on, turn on the pixel switch corresponding to the gate line to charge the pixel row corresponding to the gate line.
  • the gate line corresponding to each pixel row is turned on in turn according to the row clock signal of the current frame,
  • the pixel switch corresponding to the gate line is turned on to charge the pixel row corresponding to the gate line.
  • the frame clock signal of the current frame corresponds to high Level output.
  • the frame start signal is a signal that controls the charging of each frame of the picture. Starting from the rising edge of the frame start signal, the display panel can start from the initial gate line row by row according to the frequency of the row clock signal. Open the grid line.
  • each pixel row of the HD-type display panel driven by double gate lines corresponds to two rows of gate lines. Starting from the rising edge of the first pulse of the row clock signal of the current frame, starting from the first row of the gate line of the current frame, turn on the gate line row by row until the end of the 1536th pulse of the row clock signal, that is Correspondingly turn on the 1536 rows of grid lines in order to sequentially charge the pixel rows of the current frame to complete the charging of the display frame of the current frame.
  • the gate lines corresponding to each pixel row are turned on sequentially according to the row clock signal of the current frame; the gate lines corresponding to each pixel row are turned on At this time, the pixel switch corresponding to the gate line is turned on to charge the pixel row corresponding to the gate line. In this way, by sequentially charging the pixel rows of the current frame, the display screen of the current frame is charged.
  • the present application also proposes a display panel including a memory, a processor, and a charging program of a liquid crystal pixel stored on the memory and operable on the processor, the processor performs charging of the liquid crystal pixel
  • the program implements the steps of the liquid crystal pixel charging method described in the above embodiment.
  • the present application also proposes a computer-readable storage medium, wherein the computer-readable storage medium includes a liquid crystal pixel charging program, and the liquid crystal pixel charging program is implemented by the processor as described in the above embodiment The steps of the liquid crystal pixel charging method.
  • the methods in the above embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware.
  • the technical solution of the present application can be embodied in the form of a software product in essence or part that contributes to the existing technology, and the computer software product is stored in a storage medium (such as ROM/RAM as described above) , Disk, CD), including several instructions to make a terminal device (which can be a TV, mobile phone, computer, server, air conditioner, or network equipment, etc.) to perform the method described in each embodiment of the present application.
  • a terminal device which can be a TV, mobile phone, computer, server, air conditioner, or network equipment, etc.

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Abstract

一种液晶像素的充电方法、显示面板以及计算机可读存储介质，所述方法包括以下步骤：从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电（S10）；在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电（S20）；以及在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行（S30）。

Description

液晶像素的充电方法、显示面板及存储介质
相关申请
本申请要求2018年11月26日申请的，申请号为201811423722.2，名称为“液晶像素的充电方法、显示面板及存储介质”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及液晶显示技术领域，尤其涉及一种液晶像素的充电方法、显示面板以及计算机可读存储介质。
背景技术
目前，在液晶显示面板的应用领域中，显示面板的是通过将各行像素逐行打开，并充电驱动的。具体实现方式为，显示面板的各个栅极行接受行扫描信号，每经过一个时钟的上升沿就产生出一个数字信号，而每一个数字信号对应一个输出，再通过数模转换，将高低电平转换为我们需要的高低电压，使显示面板逐行打开，再通过像素电极进行充电。
由于液晶显示面板是需要交流电驱动的，为了使像素快速完成充电，可启用预充电（Pre-charge）技术，使行扫描信号提前开启，在给当前行进行常规充电的同时，对下一行进行预充电，使像素在自己实际的充电时间内更快地充到需要的电位。
由于显示面板是需要从初始像素行开始逐行打开的，在采用预充电技术时，后面的像素行能够既进行预充电，又能进行常规充电，而前面的像素行只进行了常规充电，而没能进行预充电，这就会导致只进行了常规充电的像素行比其它行光亮较暗，从而使得显示面板整体的画面显示不良。
申请内容
本申请的主要目的在于提供一种液晶像素的充电方法、显示面板以及计算机可读存储介质，改善了显示面板的充电效果。
为实现上述目的，本申请提供一种液晶像素的充电方法，所述液晶像素的充电方法包括以下步骤：
从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；
在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；
在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
可选地，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压，以对所述预设数量的像素行进行预充电。
可选地，所述从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压的步骤包括：
在上一帧行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，生成帧起始信号；
根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
可选地，所述在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行的步骤包括：
在对每一像素行进行充电时，根据预设公式和所述预设数量，获取与所述当前充电的像素行对应的所述目标像素行。
可选地，所述预设数量为二行，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
从当前帧的初始像素行开始，依次对前二行像素行进行预充电；
所述在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行的步骤包括：
在对每一像素行进行充电时，获取当前充电的像素行后的第二行像素行作为所述目标像素行。
可选地，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为四行时，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
可选地，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为二行时，从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。
可选地，所述在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电的步骤包括：
在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线；
在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。
为实现上述目的，本申请还提供一种显示面板，所述显示面板包括：
所述显示面板包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的液晶像素的充电程序，所述液晶像素的充电程序被所述处理器执行时实现如上述液晶像素的充电方法的步骤。
为实现上述目的，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质上存储有液晶像素的充电程序，所述液晶像素的充电程序被处理器执行时实现如上述液晶像素的充电方法的步骤。
本申请提供的液晶像素的充电方法、显示面板以及计算机可读存储介质，从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。这样，通过在当前帧开始充电前，预先对根据当前帧的预充电协议特性而没能进行预充电的像素行，先进行预充电，从而使得这些像素行在当前帧进行充电时，能够达到更好的充电效果，解决了因部分像素行充电不足而导致的，显示面板充电不足的问题，进一步解决了因显示面板充电不足而导致的画面显示效果不良的问题。
附图说明
图1为本申请实施例方案涉及的实施例终端的硬件运行环境示意图；
图2为本申请液晶像素的充电方法一实施例的流程示意图；
图3为本申请液晶像素的充电方法另一实施例的流程示意图；
图4为本申请液晶像素的充电方法又一实施例的流程示意图；
图5为本申请液晶像素的充电方法又一实施例的流程示意图；
图6为本申请液晶像素的充电方法的一实施例的示例图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅仅解释本申请，并不限定本申请。
本申请提供一种液晶像素的充电方法，通过在当前帧开始充电前，预先对根据当前帧的预充电协议特性而没能进行预充电的像素行，先进行预充电，从而使得这些像素行在当前帧进行充电时，能够达到更好的充电效果，解决了因部分像素行充电不足而导致的，显示面板充电不足的问题，进一步解决了因显示面板充电不足而导致的画面显示效果不良的问题。
如图1所示，图1是本申请实施例方案涉及的实施例终端的硬件运行环境示意图；
本申请实施例终端可以是一种液晶显示面板，也可以是一种显示面板的控制装置。
如图1所示，该终端可以包括：处理器1001，例如CPU，存储器1002，通信总线1003。其中，通信总线1003设置为实现该终端中各组成部件之间的连接通信。存储器1002可以是高速RAM存储器，也可以是稳定的存储器（non-volatile memory），例如磁盘存储器。存储器1002可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图1中示出的终端的结构并不构成对本申请实施例终端的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种计算机存储介质的存储器1002中可以包括液晶像素的充电程序。
在图1所示的终端中，处理器1001可以设置为调用存储器1002中存储的液晶像素的充电程序，并执行以下操作：
从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；
在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；
在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压，以对所述预设数量的像素行进行预充电。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
在上一帧行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，生成帧起始信号；
根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
在对每一像素行进行充电时，根据预设公式和所述预设数量，获取与所述当前充电的像素行对应的所述目标像素行。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
从当前帧的初始像素行开始，依次对前二行像素行进行预充电；
所述在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行的步骤包括：
在对每一像素行进行充电时，获取当前充电的像素行后的第二行像素行作为所述目标像素行。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为四行时，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为二行时，从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。
进一步地，处理器1001可以调用存储器1002中存储的液晶像素的充电程序，还执行以下操作：
在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线；
在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。
参照图2，在一实施例中，所述液晶像素的充电方法包括：
步骤S10、从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电。
本实施例中，TFT-LCD薄膜晶体管液晶显示器（Thin Film Transistor Liquid Crystal Display）是当前平板显示的主要品种之一，已经成为了现代IT、视讯产品中重要的显示平台。TFT-LCD主要驱动原理，系统主板将R/G/B压缩信号、控制信号及动力通过线材与PCB板上的连接器相连接，数据经过PCB板上的TCON-IC时序控制器（Timing Controller）处理后，经PCB板，通过S-COF（Source-Chip on Film）和G-COF（Gate-Chip on Film）与显示区连接，从而使得LCD获得所需的电源、信号。
其中，显示面板的是通过将各行像素逐行打开，并充电驱动的。具体实现方式为，显示面板的各个栅极行，即各像素行对应的栅线接受行扫描信号，每经过一个时钟的上升沿就产生出一个数字信号，而每一个数字信号对应一个输出，再通过数模转换，将高低电平转换为我们需要的高低电压，使显示面板逐行打开，再通过像素电极进行充电。
由于液晶显示面板是需要交流电驱动的，为了使像素快速完成充电，可启用预充电（Pre-charge）技术，使行扫描信号提前开启，在给当前行进行常规充电的同时，对下一行进行预充电，使像素在自己实际的充电时间内更快地充到需要的电位。
参照图6，显示面板每帧显示的画面可以通过帧时钟信号10和行时钟信号20对应控制，其中，帧时钟信号10的一个周期对应着一帧画面的显示周期，在帧时钟信号10的一个周期中，高电平显示有效，而行时钟信号20可以在帧时钟信号10的控制下，当帧时钟信号10处于高电平时，行时钟信号20的每个脉冲可以对应打开一条栅线控制，对应输出行扫描信号，以给该栅线提供扫描电压。
以HD高清显示面板机型为例，HD显示面板机型的像素为1366*768个，对应具有768行像素行，在HD显示机型采用单栅线驱动设计时，则对应有768行栅线行，即在每帧画面的帧时钟信号高电平输出时，行时钟信号对应有768个上升脉冲，而根据HD显示面板机型的单栅线驱动设计协议，在一帧画面的显示周期里，行时钟信号共有806个上升脉冲，即行时钟信号其中38个上升脉冲与帧时钟信号的低电平输出对应，因此，在每一帧画面的行时钟信号的第769个上升沿开始，不需再给当前帧的栅线提供扫描电压。
在HD显示机型采用双栅线驱动设计时，则对应有1536行栅线行，即在每帧画面的帧时钟信号高电平输出时，行时钟信号对应有1536个上升脉冲，而根据HD显示面板机型的双栅线驱动设计协议，在一帧画面的显示周期里，行时钟信号共有1612个上升脉冲，即行时钟信号其中76个上升脉冲与帧时钟信号的低电平输出对应，因此，在每一帧画面的行时钟信号的第1537个上升沿开始，不需再给当前帧的栅线提供扫描电压。
因此，为了解决显示面板当前帧画面进行充电和预充电时，一些像素行因预充电协议特性（在当前像素行进行充电时，只能给排列在当前像素行后的像素行进行预充电。）而导致没能进行预充电的问题，可以在当前帧开始前，利用每帧画面的显示周期的协议特性，在上一帧画面的帧时钟信号处于低电平输出时，行时钟信号还具有部分上升脉冲，即行时钟信号还在进行时钟计时，预先对在当前帧不能进行预充电的像素行进行预充电。
具体地，在当前帧的画面开始充电前，即在当前帧对应的帧起始信号到来前，在上一帧的画面的帧时钟信号对应低电平输出的期间，从当前帧的初始像素行开始，对当前帧的预设数量的像素行进行预充电。比如，在所述预设数量为二行时，即对当前帧的第一行和第二行像素行进行预充电。
具体地，在上一帧的画面的帧时钟信号对应低电平输出的期间，从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压，以对所述预设数量的像素行进行预充电。
步骤S20、在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电。
具体地，在当前帧开始充电时，即当前帧的帧起始信号到来时，从当前帧的初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线，并在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电，这时，当前帧的帧时钟信号对应为高电平输出。
需要说明的是，帧起始信号是控制每帧画面的充电的信号，在从帧起始信号的上升沿开始，显示面板即可根据行时钟信号的频率，从初始栅线行开始，逐行打开栅线行。
步骤S30、在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
所述目标像素行的充电顺序晚于当前充电的像素行，即所述目标像素行为排列在当前像素行后的像素行。当前充电的像素行可以是与目标像素行存在预设的对应关系。具体地，根据预设公式和所述预设数量，即可获取与所述当前充电的像素行对应的所述目标像素行。所述预设公式如下：
S=N+M
其中，N为当前充电的像素行的排列行数，M为所述预设数量，即所述目标像素行为排列在当前充电的像素行后的第M行像素行，当前充电的像素行为第N行像素行时，目标像素行为第S行像素行。
这样，由于当前帧的前M行像素行已在当前帧开始充电前，已预先进行预充电，因此，在当前帧的每一行像素行进行充电时，通过获取当前像素行后的第M行像素行作为目标像素行，可以保证当前帧的所有像素行充电均匀，即根据预设公式和所述预设数量，获取与所述当前充电的像素行对应的所述目标像素行，并对所述目标像素行进行预充电，实现保证了当前帧的所有像素行的充电均匀。
在其中一实施例中，从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。这样，通过在当前帧开始充电前，预先对根据当前帧的预充电协议特性而没能进行预充电的像素行，先进行预充电，从而使得这些像素行在当前帧进行充电时，能够达到更好的充电效果，解决了因部分像素行充电不足而导致的，显示面板充电不足的问题，进一步解决了因显示面板充电不足而导致的画面显示效果不良的问题。
在另一实施例中，如图3所示，在上述图2所示的实施例基础上，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
步骤S40、从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压，以对所述预设数量的像素行进行预充电。
步骤S50、在上一帧行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，生成帧起始信号。
步骤S51、根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
本实施例中，具体地，在当前帧的画面开始充电前，即在当前帧对应的帧起始信号到来前，在上一帧的画面的帧时钟信号对应低电平输出的期间，从当前帧的初始像素行开始，对当前帧的预设数量的像素行进行预充电。比如，在所述预设数量为二行时，即对当前帧的第一行和第二行像素行进行预充电。
具体地，在上一帧的画面的帧时钟信号对应低电平输出的期间，获取与上一帧的帧时钟信号低电平输出期间对应的行时钟信号，以双栅线驱动的HD型显示面板为例，上一帧的帧时钟信号低电平输出期间对应的行时钟信号，是由行时钟信号第1537个上升沿开始的。
根据当前帧的所述预设数量的像素行的行数，在上一帧行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，生成帧起始信号，以双栅线驱动的HD型显示面板为例，在所述预设数量为二行时，对应着四行栅线行，而显示面板每帧的行时钟信号具有1612行计时信号，即在上一帧的行时钟信号的第1609个上升沿开始时，生成一个新的帧起始信号，以控制与预设数量的像素行对应的栅线的打开。
具体地，新生成的帧起始信号的上升沿与上一帧的行时钟信号的第1609个上升沿重合，即在上一帧的行时钟信号的第1609个上升沿开始，每个上升沿对应输出一个行扫描信号，以逐行给当前帧的前四行栅线行提供扫描电压，以对所述预设数量的像素行进行预充电。
这样，即可实现在当前帧开始充电前，提前对预设数量的当前帧的像素行进行预充电。
由于每个帧起始信号的上升沿相当于每帧画面充电的起始信号，即每个帧起始信号的上升沿到来，显示面板就会控制显示画面从初始栅线行开始重新充电，因此，在上一帧行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，对应生成帧起始信号，可以实现精准控制对当前帧的需要提前预充电的像素行进行预充电。
比如，在上一帧的行时钟信号的第1609个上升沿开始时，生成一个新的帧起始信号，就能在当前帧的帧起始信号到来前，实现对当前帧的前二行像素对应的前四行栅线行进行预充电，在当前帧的第四行栅线行预充电完成时，当前帧的帧起始信号刚好到来，就能从当前帧的初始栅线行开始，依次对所述栅线行对应的像素行进行充电。
在又一实施例中，如图4所示，在上述图2至图3的实施例基础上，所述预设数量为二行，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
步骤S60、从当前帧的初始像素行开始，依次对前二行像素行进行预充电。
所述在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行的步骤包括：
步骤S70、在对每一像素行进行充电时，获取当前充电的像素行后的第二行像素行作为所述目标像素行。
本实施例中，由于液晶显示面板的画面显示是需要通过前后两帧画面之间的极性反转驱动的，因此，在对当前像素行充电时，获取排列在当前像素行后的第二行像素行作为目标像素行，并对目标像素行进行预充电，能够改善因极性反转导致的电压的影响，从而使得当前帧得到很好的充电效果。而由于需要在当前像素行进行充电时，对排列在当前像素行后的第二行预充电，因此，除了当前帧的前两行像素行，后面的像素行都能进行充电及预充电，所以，在当前帧开始充电前，对当前帧的前二行像素行进行预充电，就能实现当前帧画面的整体充电均匀。
以双栅线驱动的HD型显示面板为例，双栅线驱动的HD型显示面板的每一像素行对应着两行栅线行。由于双栅线驱动的HD型显示面板每帧的行时钟信号具有1612行计时信号，在上一帧的行时钟信号剩余的计时行数为四行时，即在上一帧的行时钟信号的第1609个上升沿开始时，通过生成一个新的帧起始信号，使得能够从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
具体地，新生成的帧起始信号的上升沿与上一帧的行时钟信号的第1609个上升沿重合，即在上一帧的行时钟信号的第1609个上升沿开始，每个上升沿对应输出一个行扫描信号，以逐行给当前帧的前四行栅线行提供扫描电压，以对当前帧的前二行像素行进行预充电。需要说明的是，由于显示面板是交流反转驱动的，对应提供的四个扫描电压的输出顺序可以为（+，-，-，+）或者（-，+，+，-）。
以单栅线驱动的HD型显示面板为例，单栅线驱动的HD型显示面板的每一像素行对应着一行栅线行。由于单栅线驱动的HD型显示面板每帧的行时钟信号具有806行计时信号，在上一帧的行时钟信号剩余的计时行数为二行时，即在上一帧的行时钟信号的第805个上升沿开始时，通过生成一个新的帧起始信号，使得能够从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。需要说明的是，所述单栅线驱动的HD型显示面板可以是单栅线布线的显示面板，即一行像素行对应一行栅线行；所述单栅线驱动的HD型显示面板也可以是双栅线布线，单栅线奇偶驱动的显示面板，即一行像素行对应一行奇数栅线行和一行偶数栅线行，在奇数帧画面时，由奇数行栅线驱动对应像素行，在偶数帧画面时，由偶数行栅线驱动对应像素行。
具体地，新生成的帧起始信号的上升沿与上一帧的行时钟信号的第805个上升沿重合，即在上一帧的行时钟信号的第805个上升沿开始，每个上升沿对应输出一个行扫描信号，以逐行给当前帧的前二行栅线行提供扫描电压，以对当前帧的前二行像素行进行预充电。
在其中一实施例中，在当前帧开始充电前，从当前帧的初始像素行开始，依次对前二行像素行进行预充电，在对每一像素行进行充电时，获取当前充电的像素行后的第二行像素行作为所述目标像素行，并对所述目标像素行进行预充电。这样，通过使因当前帧的预充电协议导致没能进行预充电的前两行像素行对应的栅线行提前有一个电压，在当前帧真实充电的时候，就可以使前两行像素行充电更饱满，从而实现当前帧画面的整体充电均匀，以解决显示面板充电不足的问题。
在又一实施例中，如图5所示，在上述图2至图4的实施例基础上，所述在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电的步骤包括：
步骤S80、在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线。
步骤S81、在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。
本实施例中，在当前帧开始充电时，即当前帧的帧起始信号到来时，从当前帧的初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线，并在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电，这时，当前帧的帧时钟信号对应为高电平输出。
需要说明的是，帧起始信号是控制每帧画面的充电的信号，在从帧起始信号的上升沿开始，显示面板即可根据行时钟信号的频率，从初始栅线行开始，逐行打开栅线行。
以双栅线驱动的HD型显示面板为例，双栅线驱动的HD型显示面板的每一像素行对应着两行栅线行。从当前帧的行时钟信号的第一个脉冲上升沿开始，从当前帧的第一行栅线行开始，依次逐行打开栅线行，一直到行时钟信号的第1536个脉冲结束，即总共对应依次打开1536行栅线，以对当前帧的像素行进行依次充电，以完成当前帧的显示画面的充电。
在其中一实施例中，在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线；在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。这样，通过对当前帧的像素行进行依次充电，以完成当前帧的显示画面的充电。
此外，本申请还提出一种显示面板，所述显示面板包括存储器、处理器及存储在存储器上并可在处理器上运行的液晶像素的充电程序，所述处理器执行所述液晶像素的充电程序时实现如以上实施例所述的液晶像素的充电方法的步骤。
此外，本申请还提出一种计算机可读存储介质，其中，所述计算机可读存储介质包括液晶像素的充电程序，所述液晶像素的充电程序被处理器执行时实现如以上实施例所述的液晶像素的充电方法的步骤。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在如上所述的一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是电视机，手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (20)

  1. 一种液晶像素的充电方法，其中，所述液晶像素的充电方法包括以下步骤：
    从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；
    在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；以及
    在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
  2. 如权利要求1所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
    从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压，以对所述预设数量的像素行进行预充电。
  3. 如权利要求2所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压的步骤包括：
    在上一帧的行时钟信号剩余的计时行数等于所述预设数量的像素行对应的栅线行数时，生成帧起始信号；以及
    根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
  4. 如权利要求3所述的液晶像素的充电方法，其中，所述根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压的步骤包括：
    从所述帧起始信号的上升沿开始，依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
  5. 如权利要求2所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压的步骤包括：
    在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为所述预设数量的两倍时，生成帧起始信号；以及
    根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
  6. 如权利要求2所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次给所述预设数量的像素行对应的栅线提供扫描电压的步骤包括：
    在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数等于所述预设数量时，生成帧起始信号；以及
    根据所述帧起始信号依次打开所述预设数量的像素行对应的栅线，以给所述栅线提供扫描电压。
  7. 如权利要求1所述的液晶像素的充电方法，其中，所述在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行的步骤包括：
    在对每一像素行进行充电时，根据预设公式和所述预设数量，获取与所述当前充电的像素行对应的所述目标像素行。
  8. 如权利要求1所述的液晶像素的充电方法，其中，所述预设数量为二行，所述从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电的步骤包括：
    从当前帧的初始像素行开始，依次对前二行像素行进行预充电。
  9. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤之后，还包括：
    在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；以及
    在对每一像素行进行充电时，获取当前充电的像素行后的第二行像素行作为所述目标像素行。
  10. 如权利要求9所述的液晶像素的充电方法，其中，所述在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电的步骤包括：
    在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线；以及
    在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。
  11. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为四行时，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
  12. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为四行时，生成帧起始信号；以及
    根据所述帧起始信号，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
  13. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号处于第1609个上升沿时，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
  14. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用双栅线驱动设计时，以及在上一帧的行时钟信号处于第1609个上升沿时，生成帧起始信号；以及
    根据所述帧起始信号，从当前帧的初始栅线行开始，依次给前四行栅线行提供扫描电压，以对前二行像素行进行预充电。
  15. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为二行时，从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。
  16. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号剩余的计时行数为二行时，生成帧起始信号；以及
    根据所述帧起始信号，从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。
  17. 如权利要求8所述的液晶像素的充电方法，其中，所述从当前帧的初始像素行开始，依次对前二行像素行进行预充电的步骤包括：
    在液晶像素采用单栅线驱动设计时，以及在上一帧的行时钟信号处于第805个上升沿时，从当前帧的初始栅线行开始，依次给前二行栅线行提供扫描电压，以对前二行像素行进行预充电。
  18. 如权利要求1所述的液晶像素的充电方法，其中，所述在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电的步骤包括：
    在当前帧开始充电时，从初始像素行开始，根据当前帧的行时钟信号依次打开每一像素行对应的栅线；以及
    在所述每一像素行对应的栅线打开时，打开所述栅线对应的像素开关，以对所述栅线对应的像素行进行充电。
  19. 一种显示面板，其中，所述显示面板包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的液晶像素的充电程序，所述液晶像素的充电程序被所述处理器执行时实现如下液晶像素的充电方法的步骤：
    从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；
    在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；以及
    在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
  20. 一种计算机可读存储介质，其中，所述计算机可读存储介质上存储有液晶像素的充电程序，所述液晶像素的充电程序被处理器执行时实现如下液晶像素的充电方法的步骤：
    从当前帧的初始像素行开始，依次对预设数量的像素行进行预充电；
    在当前帧开始充电时，从初始像素行开始，依次对所有像素行进行充电；以及
    在对每一像素行进行充电时，获取当前充电的像素行对应的目标像素行，对所述目标像素行进行预充电，所述目标像素行的充电顺序晚于当前充电的像素行。
PCT/CN2018/121839 2018-11-26 2018-12-18 液晶像素的充电方法、显示面板及存储介质 WO2020107558A1 (zh)

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