WO2020087562A1 - 一种显示面板的驱动方法、其驱动装置和显示装置 - Google Patents

一种显示面板的驱动方法、其驱动装置和显示装置 Download PDF

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Publication number
WO2020087562A1
WO2020087562A1 PCT/CN2018/114711 CN2018114711W WO2020087562A1 WO 2020087562 A1 WO2020087562 A1 WO 2020087562A1 CN 2018114711 W CN2018114711 W CN 2018114711W WO 2020087562 A1 WO2020087562 A1 WO 2020087562A1
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Prior art keywords
square wave
data line
data
driving
conversion
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PCT/CN2018/114711
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English (en)
French (fr)
Inventor
郭东胜
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惠科股份有限公司
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Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Priority to US17/042,913 priority Critical patent/US11151923B2/en
Publication of WO2020087562A1 publication Critical patent/WO2020087562A1/zh
Priority to US17/465,865 priority patent/US11580894B2/en
Priority to US17/465,862 priority patent/US11545066B2/en
Priority to US17/465,859 priority patent/US11538391B2/en

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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
    • G09G3/2007—Display of intermediate tones
    • 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
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/30—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 using controlled light sources using electroluminescent panels
    • G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • 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
    • G09G3/3688—Details of drivers for data 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
    • G09G2310/06—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
    • 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
    • G09G3/3614—Control of polarity reversal in general

Definitions

  • the present application relates to the field of display technology, and in particular, to a driving method of a display panel, a driving device thereof, and a display device.
  • Flat panel displays include thin film transistor liquid crystal displays (Thin Film Transistor-Liquid Crystal (TFT-LCD) and organic light-emitting diode (Organic Light-Emitting Diode, OLED) displays, etc.
  • TFT-LCD Thi Film Transistor-Liquid Crystal
  • OLED Organic Light-Emitting Diode
  • the thin film transistor liquid crystal display controls the rotation direction of the liquid crystal molecules to refract the light of the backlight module to generate a picture, which has many advantages such as thin body, power saving, no radiation and so on.
  • the organic light emitting diode display is made of organic electroluminescent diodes, and has many advantages such as self-luminescence, short response time, high definition and contrast, flexible display and large-area full-color display.
  • the purpose of the present application is to provide a driving method of a display panel capable of controlling the gray scale value by removing digital-to-analog conversion, a driving device thereof, and a display device.
  • the present application provides a driving method for a display panel, which includes the steps of: receiving driving data corresponding to each channel; performing square wave conversion on the driving data to obtain a data line signal; and outputting a data line corresponding to each channel The signal is transmitted to the corresponding data line on the display panel; and data driving is performed on the display panel; wherein, the step of performing square wave conversion on the driving data to obtain a data line signal corresponds to different gray levels in the driving data The high level of the square wave signal generated by the conversion is the same, and the output time of the low level is different.
  • This application also discloses a driving device for a display panel, which includes: a receiver that receives driving data corresponding to each channel; a square wave conversion chip that converts the driving data to a square wave to obtain a data line signal; and an output device that outputs each The data line signal corresponding to each channel is transmitted to the corresponding data line on the display panel; the display panel is driven by data; wherein, the square wave conversion chip corresponds to a square wave signal generated by conversion of different gray levels in the drive data The high level is the same, and the output time of the high level is different.
  • the present application also discloses a display device, which includes a display panel and the above-mentioned driving device. After receiving a set of data signals, the driving device outputs a set of data line signals through conversion, and transmits the set of data line signals to A set of corresponding data lines on the display panel; controlling the display state of the display panel, and driving the display device with data.
  • the digital-to-analog conversion method uses a digital-to-analog conversion circuit
  • the digital-to-analog conversion method is not used, but the square wave conversion method is used, that is, the generated high level of the square wave signal is the same, while the low level
  • the output time is different; because the high level of the square wave conversion method is constant, only a set of maximum cross-voltage reference voltage is needed to control, which greatly saves the design requirements of the peripheral circuit, saves the chip area, and saves the display panel.
  • the level can be high level first, then low level, charge one Exceed the required voltage, and then discharge through the low level to the required voltage.
  • FIG. 1 is a schematic diagram of driving a display panel according to an embodiment of the present application.
  • 2a-b are schematic diagrams of pixel charging waveforms of a display panel according to an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another display panel driving according to an embodiment of the present application.
  • 4a-b are schematic diagrams of another pixel charging waveform of a display panel according to an embodiment of the present application.
  • FIG. 5 is a circuit diagram of an inverter of a display panel according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a square wave change of a display panel according to an embodiment of the present application.
  • FIG. 7 is a pixel waveform change diagram of a display panel according to an embodiment of the present application.
  • FIG. 8 is an application flowchart of a method for driving a display panel according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a driving device for a display panel according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • installation should be understood in a broad sense, for example, it can be fixed connection or detachable Connected, or connected integrally; either mechanically or electrically; directly connected, or indirectly connected through an intermediary, or internally connected between two components.
  • the inventor knows a method: the control method of the LCD panel displaying various gray levels mainly depends on the size of the voltage to control the display of brightness, and the voltage corresponding to each data needs to be counted by the source driver internally through the voltage method.
  • Figure 1 is an undisclosed source driver chip (Source Drier IC) internal architecture. After the data of each channel (CH1, CH2 ... CHn) is received, they need to go through level shifting-> digital-to-analog conversion (DAC)-> amplifier (OP) to generate the output voltage of each channel ( VCH1, VCH2 ...
  • VCHn where the digital-to-analog conversion (DAC) is the part that occupies the largest area.
  • DAC digital-to-analog conversion
  • T is the charging time of each row of pixels
  • Th is the total time of one row
  • the output of the gate is determined, when the chip output of the source corresponds to 0
  • the charging waveform of the corresponding pixel will change for a certain period of time when the pixel is charged.
  • an embodiment of the present application discloses a driving method for a display panel, which includes the steps of: S81: receiving driving data corresponding to each channel; S82: performing square wave conversion on the driving data to obtain a data line Signal; S83: output the data line signal corresponding to each channel and transmit it to the corresponding data line on the display panel; drive the display panel;
  • the high level of the square wave signal generated corresponding to different grayscale conversions in the driving data is the same, and the output time of the low level is different.
  • the digital-to-analog conversion method uses a digital-to-analog conversion circuit
  • the digital-to-analog conversion method is not used, but the square wave conversion method is used, that is, the generated high level of the square wave signal is the same, while the low level
  • the output time is different; because the high level of the square wave conversion method is constant, only a set of maximum cross-voltage reference voltage is needed to control, which greatly saves the design requirements of the peripheral circuit, saves the chip area, and saves the display panel.
  • the level can be high level first, then low level, charge first A voltage that exceeds the required voltage is discharged through a low level to the required voltage.
  • the same data line corresponds to two adjacent scan lines, and the high and low levels on the data line are turned on successively The order is reversed.
  • the order in which the high and low levels on the data line are turned on in reverse is reversed. If the data line signal corresponding to the time when the scanning line in the previous row is turned on is the high level first and then the low level on the same data line Level, the data line signal corresponding to the time when the scan line of the current row is turned on is first low level, and then high level; if the data line signal corresponding to the time when the scan line of the previous row is turned on is low level first, and then high Level, then the data line signal corresponding to the time when the scan line of the current row is turned on is first high level and then low level; the signal on the same data line is between two adjacent scan lines, high level and High level together, low level and low level together, the signal on the data line corresponding to the adjacent two rows of scan lines does not need to change the direction of the level when the scan line is switched, corresponding to the adjacent two scan lines There is no cross voltage between them, they are all high level or low level, and the frequency of the level change is reduced by half; it
  • the same data line corresponds to two adjacent scan lines, and the high and low levels on the data line are turned on successively The order is the same.
  • the sequence of turning on the high level and low level on the data line is the same. If the data line signal corresponding to the time when the scanning line of the previous line is turned on is first high level and then low level, the current line scan The data line signal corresponding to the time when the line is turned on will also be high level first and then low level; if the data line signal corresponding to the time when the scanning line is turned on in the previous line is low level first and then high level, the current The data line signal corresponding to the time when the row scanning line is turned on will also be low level first and then high level; the level between two adjacent scanning lines needs to cross voltage, so that the brightness of the display panel is uniform.
  • two adjacent data lines correspond to the same scanning line, and the high level and the low level of the data line are successively The order of opening is reversed.
  • the order of turning on the high level and low level on the data line is reverse, corresponding to the same scanning line, if the data line signal of the previous column corresponding to the current scanning line turning on time is the high level first, After the low level, the data line signal of the current column corresponding to the time when the current scan line is turned on is the low level first, and then the high level; if the data line signal of the previous column corresponding to the time when the current scan line is turned on If it is low level first and then high level, the data line signal of the current column corresponding to the time when the current scan line is turned on is first high level and then low level. At the same time, because of the continuous change of the level, the excessive deflection of the liquid crystal can be effectively avoided, so that the brightness display of the display panel is uniform.
  • two adjacent data lines correspond to the same scanning line, and the high level and the low level of the data line are successively The sequence of opening is the same.
  • the sequence of turning on the high and low levels on the data line is the same, corresponding to the same scan line, if the data line signal of the previous column corresponding to the current scan line is turned on, it is high level first, After the low level, the data line signal of the current column corresponding to the time when the current scan line is turned on is the high level first, and then the low level; if the data line signal of the previous column corresponding to the time when the current scan line is turned on If it is low level first and then high level, the data line signal of the current column corresponding to the time when the current scan line is turned on is low level first and then high level. At the same time, because of the continuous change of the level, excessive deflection of the liquid crystal is avoided, and the display brightness of the display panel is uniform.
  • the corresponding square wave width time and reset are queried and output from a preset square wave look-up table
  • the time and reset time determine the start time of the low-level output
  • the square wave width time determines the duration of the low-level.
  • a square wave look-up table is adopted; The conversion of the square wave look-up table can find the time that meets the low level output that can drive the target gray scale to achieve the best display effect.
  • the step of performing square wave conversion on the driving data to obtain the data line signal includes:
  • Logic operation judging the gray-scale voltage value by the polarity inversion setting signal to obtain a square wave waveform, and performing a table lookup conversion between the square wave waveform and the polarity inversion setting by a truth table to obtain the converted square wave Waveform to obtain the logic waveform that needs to be output, and then through the level conversion and amplifier amplification to obtain the data line signal.
  • the logical waveform is obtained through rigorous logical operation. Through logical calculation, the output logical waveform is ensured to be accurate, and the data line signal that meets the target gray level is obtained, so that The program has better implementation effect; during the square wave conversion process, the reset method is reset to the low or high level according to the polarity of the polarity reversal signal; when the square wave signal obtained after logic calculation is high When the flat potential is small, the output drive data is not enough to drive the grayscale changes alone; after the analog low voltage of the level conversion logic waveform is converted into an analog high voltage that can drive the display panel, the current of the logic waveform is enhanced by the amplifier Drive ability, and then increase the power of the logic waveform, and to achieve the output square wave signal high level can smoothly drive the purpose of gray scale.
  • a display panel driving device 100 including: a receiver 200 that receives driving data corresponding to each channel; a square wave conversion chip 300, Perform square wave conversion on the driving data to obtain a data line signal; the output device 400 outputs the data line signal corresponding to each channel and transmits it to the corresponding data line on the display panel 600; data driving the display panel 600;
  • the high level of the square wave signal generated corresponding to different gray scale conversions in the driving data is the same, and the output time of the high level is different.
  • the square wave conversion chip 300 includes an inverter circuit, and the inverter circuit includes:
  • a square wave generator (SWC), a polarity inversion chip (POL), a logic level power supply (VDD) and a result output (G1);
  • the inverter circuit also includes a switch, and the square wave generator ( SWC) and a polarity inversion chip (POL) control switch, the switch controls the output of a square wave signal; the input and output results of the square wave signal generate a truth table.
  • the switch includes four thin film transistors (Thin Film Transistor, TFT), and the square wave generator (SWC) is the source of the first thin film transistor (TI) and the third thin film transistor (T3)
  • the polarity inversion chip (POL) is the gate of the first thin film transistor (TI) and the third thin film transistor (T3)
  • the logic level power supply (VDD) is the source of the second thin film transistor (T2)
  • the drain of the transistor (TI) is connected to the gate of the second thin film transistor (T2)
  • the drain of the first thin film transistor (TI) is connected to the gate of the fourth thin film transistor (T4)
  • the second thin film transistor (T2) Is connected to the source of the fourth thin film transistor (T4), and the fourth thin film transistor (T4) is grounded;
  • the polarity inversion chip (POL) inputs a high level
  • the first thin film transistor (TI) turns on and the third thin film transistor (T3) turns off
  • the square wave generator (SWC) inputs a high level
  • the fourth thin film transistor (T4 ) Is turned on, the second thin film transistor (T2) is turned off
  • the result output device (G1) outputs a low level
  • the polarity inversion chip (POL) inputs a high level
  • the first thin film transistor (TI) turns on
  • the third thin film transistor (T3) turns off
  • the square wave generator (SWC) inputs a low level
  • the fourth thin film transistor (T4) ) Is turned off, the second thin film transistor (T2) is turned on
  • the result outputter (G1) outputs a high level
  • the first thin film transistor (TI) turns off
  • the second thin film transistor (T2) turns off
  • the third thin film transistor (T3) ) Is turned on
  • the fourth thin film transistor (T4) is turned off
  • the result outputter (G1) outputs a high level
  • the first thin film transistor (TI) turns off
  • the second thin film transistor (T2) turns off
  • the third thin film transistor (T3) ) Is turned on
  • the fourth thin film transistor (T4) is turned off
  • the result outputter (G1) outputs a low level
  • the square wave signal output by the result outputter (G1) is equal to the square wave signal input by the square wave generator (SWC); when the polarity inversion chip (POL) When the low level is input, the square wave signal output by the result output device (G1) is equal to the square wave signal input by the square wave generator (SWC).
  • the transmission of the square wave signal is strictly controlled to prevent A fault occurs in the transmission of the square wave signal and an erroneous transmission occurs to ensure that the brightness of the display panel 600 is uniform, and the required square wave signal is obtained.
  • POL polarity inversion chip
  • SWC square wave generator
  • TFT Thin Film Transistor
  • a display device 500 which includes: a display panel 600 and the above-mentioned driving device 100. After receiving a set of data signals, the driving device 100 performs conversion, Output a set of data line signals, and transmit the set of data line signals to a corresponding set of data lines on the display panel 600; control the display state of the display panel 600, and drive the display device 500 with data.
  • this scheme uses positive drive 127 gray scale (T127) and negative drive negative 127 gray scale (T127 ') and positive drive 0 gray scale (T0) and reverse drive.
  • Negative 0 gray scale (T0 ') driven in the negative direction is used as an example to illustrate the specific implementation content, but the actual operation process includes but is not limited to 0 gray scale and 127 gray scale.
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • OLED Organic Light-Emitting Diode

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示面板(600)的驱动方法，包括：对每个通道接收的驱动数据进行方波转换，得到数据线信号；对应驱动数据中不同灰阶转换生成的方波信号高电平相同，低电平输出时间不同。一种驱动装置(100)和显示装置(500)，包括：接收器(200)，接收每个通道对应的驱动数据；方波转换芯片(300)，对驱动数据进行方波转换，得到数据线信号；以及输出器(400)，输出每个通道对应的数据线信号，传输给显示面板(600)上对应的数据线，对显示面板(600)进行数据驱动；其中，方波转换芯片(300)中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，高电平输出的时间不同。

Description

一种显示面板的驱动方法、其驱动装置和显示装置
本申请要求于2018年10月29日提交中国专利局、申请号为CNCN201811267616.X、发明名称为“一种显示面板的驱动方法、其驱动装置和显示装置”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
本申请涉及显示技术领域，尤其涉及一种显示面板的驱动方法、其驱动装置和显示装置。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。
随着科技的发展和进步，平板显示器由于具备机身薄、省电和辐射低等热点而成为显示器的主流产品，得到了广泛应用。平板显示器包括薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)和有机发光二极管(Organic Light-Emitting Diode，OLED)显示器等。其中，薄膜晶体管液晶显示器通过控制液晶分子的旋转方向，以将背光模组的光线折射出来产生画面，具有机身薄、省电、无辐射等众多优点。而有机发光二极管显示器是利用有机电致发光二极管制成，具有自发光、响应时间短、清晰度与对比度高、可实现柔性显示与大面积全色显示等诸多优点。
在显示面板的灰阶控制方式中，数模转换占据了芯片的绝大部分面积，且增加显示面板的制造成本。
技术解决方案
本申请的目的是提供一种去掉数模转换也可以控制灰阶值的显示面板的驱动方法及其驱动装置和显示装置。
为实现上述目的，本申请提供了一种显示面板的驱动方法，包括步骤：接收每个通道对应的驱动数据；对驱动数据进行方波转换，得到数据线信号；输出每个通道对应的数据线信号，传输给所述显示面板上对应的数据线；以及对显示面板进行数据驱动；其中，所述的对驱动数据进行方波转换，得到数据线信号的步骤中，对应驱动数据中不同 灰阶转换生成的方波信号的高电平相同，低电平输出的时间不同。
本申请还公开了一种显示面板的驱动装置，包括：接收器，接收每个通道对应的驱动数据；方波转换芯片，对驱动数据进行方波转换，得到数据线信号；输出器，输出每个通道对应的数据线信号，传输给所述显示面板上对应的数据线；对显示面板进行数据驱动；其中，所述方波转换芯片中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，高电平输出的时间不同。
本申请还公开了一种显示装置，包括：显示面板和上述的驱动装置，所述驱动装置接收一组数据信号后，通过转换，输出一组数据线信号，并将这组数据线信号传输给所述显示面板上的一组对应的数据线；控制显示面板的显示状态，对显示装置进行数据驱动。
相对于利用数模转换出不同的电平，即生成的信号的高电平不同，而高电平持续的时间相同，来达到数据驱动的目的，数模转换的方法所用到的数模转换电路复杂，占据芯片的面积较大的方案来说，本申请中，未利用数模转换的方式，而是采用方波转换的方式，即生成的方波信号的高电平相同，而低电平输出的时间不同；因为采用方波转化方法的高电平恒定，只需要一组最大跨压的参考电压来控制，大大节约了外围电路的设计需求，节约了芯片的面积，节省了显示面板的制作成本；不必更改高电平值，只需控制低电平输出的时间，使得操作更加简便；在实际操作过程中，电平可以是先是高电平，后是低电平，先充电充一个超出需要的电压，后通过低电平放电，放电至所需要的电压。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请实施例一种显示面板的驱动示意图；
图2a-b是本申请实施例一种显示面板的像素充电波形示意图；
图3是本申请实施例另一种显示面板的驱动的示意图；
图4a-b是本申请实施例另一种显示面板像素充电波形示意图；
图5是本申请实施例一种显示面板的反相器电路图；
图6是本申请实施例一种显示面板的方波变化的示意图；
图7是本申请实施例一种显示面板的像素波形变化图；
图8是本申请实施例一种显示面板的驱动方法的应用流程图；
图9是本申请实施例一种显示面板的驱动装置的结构示意图；
图10是本申请实施例一种显示装置的结构示意图。
本申请的实施方式
这里所公开的具体结构和功能细节仅仅是代表性的，并且是用于描述本申请的示例性实施例的目的。但是本申请可以通过许多替换形式来具体实现，并且不应当被解释成仅仅受限于这里所阐述的实施例。
在本申请的描述中，需要理解的是，术语“中心”、“横向”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。另外，术语“包括”及其任何变形，意图在于覆盖不排他的包含。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本申请中的具体含义。
这里所使用的术语仅仅是为了描述具体实施例而不意图限制示例性实施例。除非上下文明确地另有所指，否则这里所使用的单数形式“一个”、“一项”还意图包括复数。还应当理解的是，这里所使用的术语“包括”和/或“包含”规定所陈述的特征、整数、步骤、操作、单元和/或组件的存在，而不排除存在或添加一个或更多其他特征、整数、步骤、操作、单元、组件和/或其组合。
发明人知晓的一种方法：液晶显示面板显示各种灰阶的控制方式主要依靠电压的大小来控制亮度的显示，而每个数据对应的电压，需要通过电压的方式需要源极驱动器内部进行数模转换(DAC)的处理，但是数模转换(DAC)占用了源极驱动器的源极驱动芯片的绝大部分的面积设计如图1所示，为一种未公开的源极驱动芯片(Source Drier IC)内部架构。每一个通道(CH1、CH2…CHn)的数据接收后，均需要分别经过电平转换(level shift)->数模转换(DAC)->放大器(OP)，才能产生每个通道的输出电压(VCH1、VCH2…VCHn)，其中数模转换(DAC)是占据面积最大的部分，数模转换(DAC)用的模拟电路进行的设计，且数据的N比特(bit)越大，面积就会越大。
如图2a-b所示，以8比特(bit)的显示为例，T为每一行像素的充电时间，Th为一行的总时间，有栅极的输出决定，当源极的芯片输出对应0～255灰阶的电压波形时，对应的像素的充电波形，像素充电的会有变换会有一定的时间。
下面参考附图和可选的实施例对本申请作进一步说明。
如图3至图8所示，本申请实施例公布了一种显示面板的驱动方法，包括步骤：S81:接收每个通道对应的驱动数据；S82:对驱动数据进行方波转换，得到数据线信号；S83:输出每个通道对应的数据线信号，传输给显示面板上对应的数据线；对显示面板进行数据驱动；
其中，所述的对驱动数据进行方波转换，得到数据线信号的步骤中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，低电平输出的时间不同。
相对于利用数模转换出不同的电平，即生成的信号的高电平不同，而低电平输出的时间相同，来达到数据驱动的目的，数模转换的方法所用到的数模转换电路复杂，占据芯片的面积较大的方案来说，本申请中，未利用数模转换的方式，而是采用方波转换的方式，即生成的方波信号的高电平相同，而低电平输出的时间不同；因为采用方波转化方法的高电平恒定，只需要一组最大跨压的参考电压来控制，大大节约了外围电路的设计需求，节约了芯片的面积，节省了显示面板的制作成本；不必更改高电平值，只需控制低电平输出的的时间，使得操作更加简便；在实际操作过程中，电平可以是先是高电平，后是低电平，先充电充一个超出需要的电压，后通过低电平放电，放电至所需要的电压。
在一实施例中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，同一根数据线上，对应相邻的两条扫描线，数据线上高电平和低电平先后开启的顺序是相反的。
本方案中，数据线上高电平和低电平先后开启的顺序是相反的，则同一根数据线上，若前一行扫描线开启的时间对应的数据线信号是先是高电平，后是低电平，则当前行扫描线开启的时间对应的数据线信号就是先是低电平，后是高电平；若前一行扫描线开启 的时间对应的数据线信号是先是低电平，后是高电平，则当前行扫描线开启的时间对应的数据线信号就是先是高电平，后是低电平；同一根数据线上的信号在对应相邻的两条扫描线之间，高电平和高电平一起，低电平和低电平一起，相邻两行扫描线对应的数据线上的信号在扫描线切换的时候，电平的方向不需要改变，对应相邻的两条扫描线之间没有跨压，都是高电平或低电平，电平变化的频率减少一半；可以显著降低数据线的功耗，减缓数据线工作时的发热，同时减少了数据线与其他信号线之间的干扰。
在一实施例中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，同一根数据线上，对应相邻的两条扫描线，数据线上高电平和低电平先后开启的顺序是相同的。
本方案中，数据线上高电平和低电平先后开启的顺序是相同的，若前一行扫描线开启的时间对应的数据线信号是先是高电平，后是低电平，则当前行扫描线开启的时间对应的数据线信号也会是先是高电平，后是低电平；若前一行扫描线开启的时间对应的数据线信号是先是低电平，后是高电平，则当前行扫描线开启的时间对应的数据线信号也会是先是低电平，后是高电平；相邻的两条扫描线之间的电平都需要跨压，使得显示面板显示的亮度均匀。
在一实施例中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，相邻的两根数据线上，对应同一条扫描线，数据线上的高电平和低电平先后开启的顺序是相反的。
本方案中，数据线上的高电平和低电平先后开启的顺序是相反的，对应同一条扫描线，若与当前扫描线开启的时间对应的前一列的数据线信号是先是高电平，后是低电平，则与当前扫描线开启的时间对应的当前列的数据线信号是先是低电平，后是高电平；若与当前扫描线开启的时间对应的前一列的数据线信号是先是低电平，后是高电平，则与当前扫描线开启的时间对应的当前列的数据线信号是先是高电平，后是低电平。同时因为电平的不断变化，可以有效避免液晶的过度偏转，使得显示面板的亮度显示均匀。
在一实施例中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，相邻的两根数据线上，对应同一条扫描线，数据线上的高电平和低电平先后开启的顺序是相同的。
本方案中，数据线上的高电平和低电平先后开启的顺序是相同的，对应同一条扫描线，若与当前扫描线开启的时间对应的前一列的数据线信号是先是高电平，后是低电平，则与当前扫描线开启的时间对应的当前列的数据线信号是先是高电平，后是低电平；若与当前扫描线开启的时间对应的前一列的数据线信号是先是低电平，后是高电平，则与当前扫描线开启的时间对应的当前列的数据线信号是先是低电平，后是高电平。同时因为电平的不断变化，避免液晶偏转过度，且显示面板的显示亮度均匀。
在一实施例中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
表一方波查询表
Figure PCTCN2018114711-appb-000001
本方案中，为了使得不同的灰阶值和不同灰阶转换生成的方波信号低电平输出的时间可以更好的互相转换而保证显示面板的驱动稳定，因而采用了方波查询表；通过方波查询表的换算，可以找到符合可以驱动目标灰阶的低电平输出的时间，以达到最佳的显示效果，替代数模转换的方法，节约显示面板上的芯片的面积；在方波查询表中通过对方波宽度时间和复位时间的查询，而查询输出对应不同的灰阶值的不同的低电平输出的时间，因为像素内部的上一帧有残留电压，而通过在复位时间方波信号电平复位到最高电平或者最低电平，可以避免像素上一帧内部的残留电压对充电时间的影响，使得方波查询表的对应更加精准；同时因为采用方波转化方法的高电平恒定，只需要一组最大跨压的参考电压来控制，大大节约了外围电路的设计需求，节约了显示面板的制造成本；本方案中的方波宽度时间存储的是延迟时间，延迟时间作为记录在方波查询表里的时候，可以以某基础时钟周期T为单位的是方波宽度时间的数字。
在一实施例中，所述获得方波信号低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真 值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
本方案中，获得方波信号低电平输出的时间后，通过严谨的逻辑运算得到输出的逻辑波形，通过逻辑计算，确保输出的逻辑波形准确无误，得到符合目标灰度的数据线信号，使得方案得到更佳的实施效果；在方波转换过程中根据极性反转信号的极性让复位的方式向着低电平或者高电平做复位；当通过逻辑计算后得到的方波信号高电平的电位较小时，所输出的驱动数据不足以单独驱动灰阶的变化；通过电平转换逻辑波形的模拟低电压转换为能驱动显示面板的模拟高电压后，再通过放大器增强逻辑波形的电流驱动能力，进而增大逻辑波形的功率，而达到输出的方波信号高电平可以顺利驱动灰阶的目的。
作为本申请的另一实施例，参考图9和表二所示，公开了一种显示面板的驱动装置100，包括：接收器200，接收每个通道对应的驱动数据；方波转换芯片300，对驱动数据进行方波转换，得到数据线信号；输出器400，输出每个通道对应的数据线信号，传输给所述显示面板600上对应的数据线；对显示面板600进行数据驱动；
其中，所述方波转换芯片300中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，高电平输出的时间不同。
在一实施例中，所述方波转换芯片300中包括反相器电路，所述反相器电路中包括：
方波产生器(SWC)、极性反转芯片(POL)、逻辑电平电源(VDD)和结果输出器(G1)；所述反相器电路中还包括开关，所述方波产生器(SWC)与极性反转芯片(POL)控制开关，开关控制方波信号的输出；所述方波信号的输入与输出结果生成真值表。
如图5和表二所示，开关包括四个薄膜晶体管(Thin Film Transistor，TFT)，方波产生器(SWC)是第一薄膜晶体管(TI)和第三薄膜晶体管(T3)的源极，极性反转芯片(POL)是第一薄膜晶体管(TI)和第三薄膜晶体管(T3)的栅极，逻辑电平电源(VDD)是第二薄膜晶体管(T2)的源极，第一薄膜晶体管(TI)的漏极与第二薄膜晶体管(T2)的栅极相连，第一薄膜晶体管(TI)的漏极与第四薄膜晶体管(T4)的栅极相连，第二薄膜晶体管(T2)的漏极与第四薄膜晶体管(T4)的源极相连，第四薄膜晶体管(T4)接地；
当极性反转芯片(POL)输入高电平，第一薄膜晶体管(TI)开启，第三薄膜晶体管(T3)关闭；方波产生器(SWC)输入高电平，第四薄膜晶体管(T4)开启，第二薄膜晶体管(T2)关闭；结果输出器(G1)输出低电平；
当极性反转芯片(POL)输入高电平，第一薄膜晶体管(TI)开启，第三薄膜晶体管(T3)关闭；方波产生器(SWC)输入低电平，第四薄膜晶体管(T4)关闭，第二薄膜 晶体管(T2)开启；结果输出器(G1)输出高电平；
当极性反转芯片(POL)输入低电平，方波产生器(SWC)输入高电平时，第一薄膜晶体管(TI)关闭，第二薄膜晶体管(T2)关闭，第三薄膜晶体管(T3)开启，第四薄膜晶体管(T4)关闭；结果输出器(G1)输出高电平；
当极性反转芯片(POL)输入低电平，方波产生器(SWC)输入低电平时，第一薄膜晶体管(TI)关闭，第二薄膜晶体管(T2)关闭，第三薄膜晶体管(T3)开启，第四薄膜晶体管(T4)关闭；结果输出器(G1)输出低电平；
即当极性反转芯片(POL)输入高电平时，结果输出器(G1)输出的方波信号与方波产生器(SWC)输入的方波信号相等；当极性反转芯片(POL)输入低电平时，结果输出器(G1)输出的方波信号与方波产生器(SWC)输入的方波信号相等。
本方案中，依据反相器电路中的极性反转芯片(POL)、方波产生器(SWC)及四个薄膜晶体管(Thin Film Transistor，TFT)，来严格控制方波信号的传输，防止方波信号传输中发生故障而出现错误传输，保证显示面板600的亮度均匀的同时，得到需要的方波信号。
表二真值表
SWC POL G1
H H L
L H H
H L H
L L L
作为本申请的另一实施例，参考图10所示，公开了一种显示装置500，包括：显示面板600和上述的驱动装置100，所述驱动装置100接收一组数据信号后，通过转换，输出一组数据线信号，并将这组数据线信号传输给所述显示面板600上的一组对应的数据线；控制显示面板600的显示状态，对显示装置500进行数据驱动。
在附图中本方案以正向驱动的127灰阶(T127)和反转后的负向驱动的负127灰阶(T127’)以及正向驱动的0灰阶(T0)和反转后的负向驱动的负0灰阶(T0’)为例来说明具体实施内容，但在实际操作过程中包括但不限于0灰阶和127灰阶。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
本申请的技术方案可以广泛应用在薄膜晶体管液晶显示器(Thin Film Transistor-Liquid Crystal Display，TFT-LCD)和机发光二极管(Organic Light-Emitting Diode，OLED)显示器等平板显示器。
以上内容是结合具体的可选的实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (18)

  1. 一种显示面板的驱动方法，包括步骤：
    接收每个通道对应的驱动数据；
    对驱动数据进行方波转换，得到数据线信号；以及
    输出每个通道对应的数据线信号，传输给所述显示面板上对应的数据线；对显示面板进行数据驱动；
    其中，所述的对驱动数据进行方波转换，得到数据线信号的步骤中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，低电平输出的时间不同。
  2. 如权利要求1所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，同一根数据线上，对应相邻的两条扫描线，数据线上高电平和低电平先后开启的顺序是相反的。
  3. 如权利要求1所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，同一根数据线上，对应相邻的两条扫描线，数据线上高电平和低电平先后开启的顺序是相同的。
  4. 如权利要求1所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，相邻的两根数据线上，对应同一条扫描线，数据线上的高电平和低电平先后开启的顺序是相反的。
  5. 如权利要求1所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，相邻的两根数据线上，对应同一条扫描线，数据线上的高电平和低电平先后开启的顺序是相同的。
  6. 如权利要求1所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
  7. 如权利要求2所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
  8. 如权利要求3所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
  9. 如权利要求4所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
  10. 如权利要求5所述的一种显示面板的驱动方法，其中，所述对驱动数据进行方波转换，得到数据线信号的步骤中，根据目标灰阶电压值，从预设的方波查询表中查询输出对应的方波宽度时间和复位时间，复位时间确定低电平输出的起始时间，方波宽度时间确定低电平的持续时间，计算出低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号。
  11. 如权利要求6所述的一种显示面板的驱动方法，其中，所述获得方波信号低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
    逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
  12. 如权利要求7所述的一种显示面板的驱动方法，其中，所述获得方波信号低电 平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
    逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
  13. 如权利要求8所述的一种显示面板的驱动方法，其中，所述获得方波信号低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
    逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
  14. 如权利要求9所述的一种显示面板的驱动方法，其中，所述获得方波信号低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
    逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
  15. 如权利要求10所述的一种显示面板的驱动方法，其中，所述获得方波信号低电平输出的时间后，对驱动数据进行方波转换，得到数据线信号的步骤包括：
    逻辑运算：通过极性反转设定信号对灰阶电压值进行判断，得到方波波形，通过真值表将方波波形与极性反转设定进行查表转换，得到转换后的方波波形，得到需要输出的逻辑波形，再通过电平转换和放大器进行放大，得到所述的数据线信号。
  16. 一种显示面板的驱动装置，包括：
    接收器，接收每个通道对应的驱动数据；
    方波转换芯片，对驱动数据进行方波转换，得到数据线信号；以及
    输出器，输出每个通道对应的数据线信号，传输给所述显示面板上对应的数据线；对显示面板进行数据驱动；
    其中，所述方波转换芯片中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，高电平输出的时间不同。
  17. 如权利要求16所述的一种显示面板的驱动装置，其中，所述方波转换芯片中包括反相器电路，所述反相器电路中包括：
    方波产生器、极性反转芯片、逻辑电平电源和结果输出器；所述反相器电路中还包括开关，所述方波产生器与极性反转芯片控制开关，开关控制方波信号的输出；所述方波信号的输入与输出结果生成真值表。
  18. 一种显示装置，包括：显示面板和驱动装置，所述显示装置包括：
    接收器，接收每个通道对应的驱动数据；
    方波转换芯片，对驱动数据进行方波转换，得到数据线信号；以及
    输出器，输出每个通道对应的数据线信号，传输给所述显示面板上对应的数据线；对显示面板进行数据驱动；
    其中，所述方波转换芯片中，对应驱动数据中不同灰阶转换生成的方波信号的高电平相同，高电平输出的时间不同。
    所述驱动装置接收一组数据信号后，通过转换，输出一组数据线信号，并将这组数据线信号传输给所述显示面板上的一组对应的数据线；控制显示面板的显示状态，对显示装置进行数据驱动。
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