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WO2015196701A1 - 显示面板的驱动方法和驱动电路以及显示装置 - Google Patents

显示面板的驱动方法和驱动电路以及显示装置 Download PDF

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Publication number
WO2015196701A1
WO2015196701A1 PCT/CN2014/090804 CN2014090804W WO2015196701A1 WO 2015196701 A1 WO2015196701 A1 WO 2015196701A1 CN 2014090804 W CN2014090804 W CN 2014090804W WO 2015196701 A1 WO2015196701 A1 WO 2015196701A1
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data
data line
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PCT/CN2014/090804
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English (en)
French (fr)
Inventor
吴倩
李凡
兰荣华
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to EP14891119.1A priority Critical patent/EP3163558A4/en
Priority to US14/762,661 priority patent/US10013911B2/en
Publication of WO2015196701A1 publication Critical patent/WO2015196701A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
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    • 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]
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    • 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
    • G09G3/2003—Display of colours
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    • 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
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    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
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    • 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
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2310/0232—Special driving of display border areas
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
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    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0281—Arrangement of scan or data electrode driver circuits at the periphery of a panel not inherent to a split matrix structure
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
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    • G—PHYSICS
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    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/022—Power management, e.g. power saving in absence of operation, e.g. no data being entered during a predetermined time

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a driving method and a driving circuit of a display panel, and a display device.
  • OLED Organic Light Emitting Diode
  • TFT-LCD Thin Film Transistor-Liquid Crystal Display
  • the OLED panel includes a plurality of pixel units, each of the pixel units includes: a switch tube, a driving TFT, and an OLED.
  • the corresponding gate line of the pixel unit turns on the switch tube, the data line corresponding to the pixel unit will be data.
  • the voltage signal is transmitted to the gate of the driving TFT, and the driving tube generates a corresponding driving current according to the data voltage signal to control the illumination of the organic material in the OLED.
  • the data voltage value of the data voltage signal is often adjusted to reduce the driving current generated by the driving tube, thereby reducing the display brightness of the OLED.
  • the power consumption of the OLED panel cannot be reduced to a large extent. For example, when the brightness of the OLED panel is reduced to half of the normal brightness, the power consumption of the corresponding OLED panel cannot be reduced to half of the power consumption of the OLED panel to normal brightness.
  • the invention provides a driving method and a driving circuit of a display panel and a display device, which can effectively reduce the brightness of the display panel and reduce the power consumption of the display panel under the premise of ensuring the display quality of the display panel.
  • the present invention provides a driving method of a display panel, the display panel comprising: a plurality of rows of gate lines and a plurality of columns of data lines, wherein the plurality of rows of gate lines and the plurality of columns of data lines define a plurality of pixels a unit, each of the pixel units being connected to a row of the gate lines and a column of the data lines, the data lines comprising: a first data line and a second data line, the first predetermined number of columns of the first data line And the second data line of the second predetermined number of columns is alternately arranged; the driving method comprises the steps of:
  • the row gate lines are sequentially scanned, wherein a data voltage signal is loaded into the first data line or the second data line when scanning a row of the gate lines.
  • each of the pixel units is connected to the data line on a first side thereof;
  • the step of scanning the row gate lines in sequence, wherein, when scanning a row of the gate lines, the step of loading a data voltage signal into the first data line or the second data line comprises:
  • a data voltage signal is loaded into the first data line while scanning the gate lines of the even rows.
  • the pixel units of the odd rows are connected to the data lines on the first side thereof, and the pixel units of the even rows are connected to the data lines on the second side thereof, the first side
  • the second side is the opposite sides of the pixel unit
  • the step of scanning the row gate lines in sequence, wherein, when scanning a row of the gate lines, the step of loading a data voltage signal into the first data line or the second data line comprises:
  • the plurality of rows of gate lines are sequentially scanned, wherein a data voltage signal is loaded into the second data line when scanning the gate lines of each row.
  • the first predetermined number of columns is equal to the second predetermined number of columns.
  • the first predetermined number of columns is 1, 2 or 3;
  • the second predetermined number of columns is 1, 2 or 3.
  • the first predetermined number of columns is 1, and the second predetermined number of columns is also 1.
  • the present invention provides a driving circuit for a display panel, wherein the driving circuit is configured to drive a display panel, and the display panel includes: a plurality of rows of gate lines and a plurality of columns of data lines, the plurality of rows of gate lines And the plurality of columns of data lines defining a plurality of pixel units, each of the pixel units being connected to a row of the gate lines and a column of the data lines, the data lines comprising: a first data line and a second data line, and The first data line of the first predetermined number of columns and the second data line of the second predetermined number of columns are alternately arranged;
  • the driving circuit of the display panel includes: a gate line driving circuit connected to the plurality of rows of gate lines; and a data line driving circuit connected to the first data line and the second data line;
  • the gate line driving circuit is configured to load a scan signal to the gate line for scanning
  • the data line driving circuit is configured to load a data voltage signal into the first data line or the second data line when scanning a row of the gate lines.
  • the data line driving circuit includes: a first data line driving sub-circuit and a second data line driving sub-circuit,
  • the first data line driving sub-circuit is configured to load a data voltage signal into the first data line
  • the second data line driving sub-circuit is configured to load a data voltage signal into the second data line.
  • the present invention provides a display device including a display panel and a driving circuit, the display panel including a plurality of rows of gate lines and a plurality of columns of data lines, the plurality of rows of gate lines and the plurality of columns of data lines being defined a pixel unit, each of the pixel units being connected to a row of the gate lines and a column of the data lines, the data lines comprising: a first data line and a second data line, and the first predetermined number of columns a second line of a data line and a second predetermined number of columns
  • the data lines are alternately arranged; the drive circuit includes a drive circuit of any one of the above display panels.
  • the present invention provides a driving method and a driving circuit for a panel, wherein the driving method is for driving a display panel, the display panel includes: a plurality of rows of gate lines, a plurality of columns of data lines, and a plurality of pixel units, wherein the data lines include: a data line and a second data line, the first predetermined number of columns of the first data line and the second predetermined number of columns of the second data line are alternately arranged, the driving method comprises: sequentially scanning the plurality of rows of gate lines, in a row When the gate line is scanned, a data voltage signal is loaded into the first data line or the second data line.
  • the display panel is an OLED panel.
  • the driving method provided by the present invention can enable pixel units on the OLED panel to be displayed at intervals, since the area of each pixel unit is smaller than the area of the entire OLED panel. Therefore, the use of such an interval display has less influence on the picture display quality of the OLED panel. In the meantime, the driving method provided by the present invention can make the power consumption of the OLED panel lower when the same brightness display is achieved compared to the driving method of the prior art.
  • FIG. 1 is a schematic view of an OLED panel provided by the present invention.
  • FIG. 2 is a flowchart of a driving method of the display panel shown in FIG. 1 according to Embodiment 2 of the present invention
  • FIG. 3 is a driving timing chart of the driving method shown in FIG. 2;
  • FIG. 4 is a schematic view showing the effect of driving the OLED panel shown in FIG. 1 by using the driving method shown in FIG. 2;
  • FIG. 5 is a diagram showing a correspondence relationship between data voltages loaded by a single pixel unit and generated luminance
  • FIG. 6 is a correspondence diagram of power consumption of a single pixel unit and brightness generated
  • FIG. 7 is a schematic diagram of another OLED panel according to an embodiment of the present disclosure.
  • FIG. 8 is a flowchart of a driving method of the display panel shown in FIG. 7 according to Embodiment 3 of the present invention.
  • FIG. 9 is a driving timing chart of the driving method shown in FIG. 8.
  • FIG. 10 is a schematic diagram showing the effect of driving the OLED panel shown in FIG. 7 by using the driving method shown in FIG. 8.
  • Embodiment 1 of the present invention provides a driving method of a display panel, which is used for driving a display panel.
  • the display panel is an OLED panel as an example, but the driving method provided by the embodiment is not limited to the OLED panel.
  • the OLED panel includes: a plurality of rows of gate lines and a plurality of columns of data lines, the plurality of rows of gate lines and the plurality of columns of data lines defining a plurality of pixel units, each of the pixel units being connected to one gate line and one data line, and the plurality of data lines
  • the method includes: a plurality of first data lines and a plurality of second data lines, and the first data line of the first predetermined number of columns and the second data line of the second predetermined number of columns are alternately disposed; and the driving method includes: sequentially aligning the rows of the lines A scan is performed in which only a data voltage signal is loaded into the first data line or the second data line when scanning a row of gate lines.
  • the driving method provided in this embodiment can reduce the energy consumption of the OLED by using the driving method provided by the embodiment in the case that the OLED panel achieves the same display brightness.
  • the first predetermined number of columns may be 1, 2 or 3, and the second predetermined number of columns may also be 1, 2 or 3.
  • the first predetermined number of columns and the second predetermined number of columns may take a smaller value.
  • the first predetermined number of columns is equal to the second predetermined number of columns, and the first predetermined number of columns is one, and the second predetermined number of columns is also one.
  • FIG. 1 is a schematic diagram of an OLED panel according to an embodiment of the present invention.
  • the OLED panel includes: a plurality of gate lines G1-G4 and a plurality of data lines D1-D9, and a plurality of gate lines G1-G4.
  • a plurality of data lines D1-D9 define a plurality of pixel units, each of which is connected to one gate line and one data line.
  • the plurality of data lines specifically include: first data lines D1, D3, D5, D7, D9 and second data lines D2, D4, D6, D8, and, in FIG. 1, 1 column of the first data line and 1 column The two data lines are alternately set.
  • the first data line D9 is sequentially set.
  • FIG. 1 includes but is not limited to the above-mentioned number of gate lines and data lines.
  • the gate line may be connected to the gate line driving circuit, and the first data line and the second data line may be respectively connected to the data line driving circuit.
  • the data line driving circuit may include: a first data line driving sub-circuit and a second data line driving sub-circuit, the first data line driving sub-circuit is connected to the first data line, and the second data line driver The circuit is coupled to the second data line.
  • the first data line driving sub-circuit is for loading a data voltage signal into the first data line
  • the second data line driving sub-circuit is for loading the data voltage signal into the second data line.
  • each of the pixel units is connected to a gate line on the upper side thereof and is connected to a data line on the first side (ie, the left side) thereof.
  • the first row of pixel units are connected to the gate line G1
  • the second row of pixel units are connected to the gate line G2
  • the third row of pixel units are connected to the gate line G3,
  • the fourth row of pixel units are connected to the gate line G4.
  • the first column of pixel units are connected to the first data line D1
  • the second column of pixel units are connected to the second data line D2
  • the third column of pixel units are connected to the first data line D3, and the fourth column of pixel units are both
  • the second data line D4 is connected, and so on.
  • FIG. 2 is a flowchart of a driving method of the display panel shown in FIG. 1 according to Embodiment 2 of the present invention
  • FIG. 3 is a driving timing diagram of the driving method shown in FIG.
  • the driving method shown in FIG. 2 is used to drive the OLED panel shown in FIG. 1, and the driving method includes:
  • Step 101 sequentially scan the gate lines G1-G4, wherein the odd-numbered row gate lines When scanning (such as G1 and G3), the data voltage signal is loaded into the first data line; when the even-numbered gate lines (such as G2 and G4) are scanned, the data voltage signal is loaded into the second data line.
  • the driving method provided in this embodiment includes scanning the gate lines G1-G4 row by row.
  • the gate line driving circuit When the gate line G1 of the first row is scanned, the gate line driving circuit outputs a scan signal to the gate line G1 to turn on the gate line G1, and the remaining gate lines are turned off. At this time, the pixel cells of the first row (i.e., the pixel cells connected to the gate line G1) are all in a data writable state.
  • the first data line driving sub-circuit loads the data voltage signal into the first data lines D1, D3, D5, D7, D9, and the second data line driving sub-circuit does not work, that is, the second data lines D2, D4, D6, D8 There is no data voltage signal in it.
  • the pixel unit of the first row only the pixel units in the odd columns (ie, the first column, the third column, the fifth column, and the seventh column) write data voltages and display, and the pixels in the even columns The unit does not write the data voltage, so even-numbered columns of pixel units are not displayed.
  • the high level in the gate line represents that the corresponding gate line is loaded with the scan signal
  • the low level represents that the corresponding gate line is not loaded with the scan signal.
  • the high level in the data line represents the data voltage signal loaded in the corresponding data line
  • the low level represents the data voltage signal not loaded in the data line.
  • the gate line driving circuit When the gate line G2 of the second row is scanned, the gate line driving circuit outputs a scan signal to the gate line G2 to turn on the gate line G2, the scan signal is a high level signal, and the remaining gate lines are turned off.
  • the pixel cells of the second row i.e., the pixel cells connected to the gate line G2 are all in a data writable state.
  • the second data line driving sub-circuit loads the data voltage signal into the second data lines D2, D4, D6, D8, and the first data line driving sub-circuit does not work, that is, the first data lines D1, D3, D5, D7, D9 There is no data voltage signal in it.
  • the gate line G3 of the third row is scanned, the gate line G3 is turned on, only the first data line driving sub-circuit operates, and the second data line driving sub-circuit does not work, so in the third row of pixel units, only The pixel unit of the odd column will be displayed, the specific process is the same as above The process of scanning the gate line G1 will not be described here.
  • the gate line G4 of the fourth row When the gate line G4 of the fourth row is scanned, the gate line G4 is turned on, only the second data line driving sub-circuit operates, and the first data line driving sub-circuit does not work, so in the fourth row of pixel units, only The pixel unit of the even-numbered column is displayed, and the specific process is the same as the process of scanning the gate line G2 described above, and details are not described herein again.
  • FIG. 4 is a schematic view showing the effect of the OLED panel shown in FIG. 1 after being driven by the driving method shown in FIG. 2.
  • a pixel unit in an odd-numbered row of odd columns and a pixel unit in an even-numbered even-numbered column can be displayed while being in an odd-numbered row and in an even-numbered column.
  • the pixel unit and the pixel unit in the odd-numbered column and in the odd-numbered column cannot be displayed.
  • the data voltage signal can also be loaded into the second data line; and when scanning even-numbered gate lines (such as G2 and G4), A data voltage signal is loaded in the first data line.
  • the pixel unit in the odd-numbered rows of odd columns and the pixel units in the even-numbered even-numbered columns cannot be displayed, but are in odd rows and A pixel unit in an even column and a pixel unit in an odd column and in an odd column (a square without a check in FIG. 4) can be displayed.
  • the OLED energy consumption corresponding to both the driving method provided in this embodiment and the driving method in the prior art is compared on the premise of achieving the same brightness.
  • FIG. 5 is a corresponding relationship diagram between data voltages loaded by a single pixel unit and generated luminance
  • FIG. 6 is a corresponding relationship diagram between power consumption of a single pixel unit and generated luminance.
  • the horizontal axis represents the data voltage value loaded by the pixel unit
  • the vertical axis represents the luminance value generated by the pixel unit.
  • the correspondence relationship between the data voltage and the luminance is a convex function.
  • the horizontal axis represents the power consumption of the pixel unit
  • the vertical axis represents the luminance value generated by the pixel unit.
  • the correspondence between the power consumption of the pixel unit and the luminance is also a convex function.
  • the brightness of the normal display of each pixel unit is Y2, the corresponding data voltage is Z2, and the power consumption is X2; the half of the brightness normally displayed by each pixel unit is Y1, and the corresponding data voltage is Z1.
  • the power consumption is X1. Since the correspondence between the power consumption and the brightness of the pixel unit satisfies the convex function, it is possible to introduce:
  • the power consumption of the OLED panel is mX1 (where m is the pixel unit on the OLED panel).
  • m is the pixel unit on the OLED panel.
  • the driving method provided by the embodiment only half of the pixel units in the display panel (for example, pixel units in odd rows and in odd columns and pixel units in even rows and in even columns) The normal display is performed, and accordingly, the total energy consumption of the OLED panel in this embodiment is due to So can be launched Therefore, under the premise of the same brightness, the driving method provided by the embodiment has lower energy consumption.
  • the foregoing driving method provided in the second embodiment of the present invention is only a preferred embodiment of the present invention, and does not limit the technical solution of the present invention. It should be understood by those skilled in the art that, in practical applications, when scanning the gate lines of odd rows, the second data line driving sub-circuit loads the data voltage signal into the second data line; and the gate in the even-numbered rows When the line is scanned, the first data line driving sub-circuit loads the data voltage signal into the first data line.
  • the first data line driving sub-circuit when scanning a gate line of a specific row, loads a data voltage signal into the first data line; and when scanning the gate lines of the remaining row, the second data line driving sub-circuit The data voltage signal is loaded into the second data line, and all of the above should fall within the protection scope of the present invention.
  • the second embodiment provides a driving method of the display panel.
  • the display panel is an OLED.
  • the driving method can display the pixel units on the OLED panel at intervals, because the area of each pixel unit is relative to the area of the entire OLED. It is said to be small, so the use of such an interval display has less influence on the picture display quality of the OLED panel.
  • the driving method provided by the second embodiment can reduce the power consumption of the OLED panel when the same brightness display is performed.
  • FIG. 7 is a schematic diagram of another OLED panel provided in the present invention.
  • the difference between the OLED display panel shown in FIG. 7 and the OLED display panel shown in FIG. 1 is that the pixel units of the odd rows in FIG. 7 are connected to the data lines on the first side of the first row, and the pixel rows of the even rows are The element is connected to a data line on its own second side, wherein the first side and the second side are opposite sides of the pixel unit.
  • the first side is the left side of the pixel unit
  • the second side is the right side of the pixel unit.
  • the pixel units of the first row and the second row are taken as an example.
  • the pixel unit of the first row ie., the pixel unit connected to the gate line G1
  • the pixel unit in the first column is connected to the first data line D1
  • the pixel unit in the second column is connected to the second data line D2.
  • the pixel unit in the third column is connected to the first data line D3, and so on.
  • the pixel unit of the second row ie, the pixel unit connected to the gate line G2
  • the pixel unit in the first column is connected to the second data line D2
  • the pixel unit in the second column is connected to the first data line D3.
  • the pixel unit in the third column is connected to the second data line D4, and so on.
  • the connection of the pixel unit of the third row is the same as the connection of the pixel unit of the first row
  • the connection of the pixel unit of the fourth row is the same as the connection of the pixel unit of the second row, and details are not described herein.
  • FIG. 8 is a flowchart of a driving method of the display panel shown in FIG. 7 according to Embodiment 3 of the present invention
  • FIG. 9 is a driving timing chart of the driving method shown in FIG. 8.
  • the driving method shown in FIG. 8 is used to drive the OLED panel shown in FIG. 7, and the driving method includes:
  • Step 201 Scanning the gate lines G1-G4 in sequence, wherein when scanning the row gate lines, only the data voltage signals are loaded into the first data lines.
  • the driving method provided in this embodiment includes scanning the gate lines G1-G4 row by row.
  • the gate line driving circuit When the gate line G1 of the first row is scanned, the gate line driving circuit outputs a scan signal to the gate line G1 to turn on the gate line G1, the scan signal is a high level signal, and the remaining gate lines are turned off.
  • the pixel cells of the first row i.e., the pixel cells connected to the gate line G1 are all in a data writable state.
  • the first data line driving sub-circuit loads the data voltage signal into the first data lines D1, D3, D5, D7, D9, and the second data line driving sub-circuit does not work, that is, the second data lines D2, D4, D6, D8 There is no data voltage signal in it.
  • the gate line driving circuit When the gate line G2 of the second row is scanned, the gate line driving circuit outputs a scan signal to the gate line G2 to turn on and scan the gate line G2, which is a high level signal, and the remaining gate lines are turned off.
  • the pixel cells of the second row i.e., the pixel cells connected to the gate line G2 are all in a data writable state.
  • the first data line driving sub-circuit loads the data voltage signal into the first data lines D1, D3, D5, D7, D9, and the second data line driving sub-circuit does not work, that is, the second data lines D2, D4, D6, D8 There is no data voltage signal in it.
  • the gate line G3 of the third row is scanned, the gate line G3 is turned on. At this time, only the first data line driving sub-circuit operates, and the second data line driving sub-circuit does not operate, so in the third row of pixel units
  • the pixel unit in the odd-numbered column is displayed, and the specific process is the same as the above-mentioned process of scanning the gate line G1, and details are not described herein again.
  • the gate line G4 of the fourth row When the gate line G4 of the fourth row is scanned, the gate line G4 is turned on. At this time, only the first data line driving sub-circuit operates, and the second data line driving sub-circuit does not operate, so in the fourth row of pixel units Only the pixel unit in the even column will be displayed.
  • the specific process is the same as the above process of scanning the gate line G2, and details are not described herein again.
  • FIG. 10 is a schematic diagram showing the effect of the OLED panel shown in FIG. 7 after being driven by the driving method shown in FIG. 8.
  • a pixel unit in an odd-numbered row of odd columns and a pixel unit in an even-numbered even-numbered column can be displayed while being in an odd-numbered row and in an even-numbered column.
  • the pixel unit and the pixel unit in the odd-numbered row and in the odd-numbered column cannot be displayed. It can be seen that the driving method provided by the third embodiment of the present invention can achieve the same effect as the driving method provided by the second embodiment.
  • the driving method provided in the third embodiment of the present invention is different from the driving method provided in the second embodiment in that, in the third embodiment, when scanning the odd-numbered gate lines or the even-numbered lines, only the first A data line driving sub-circuit is operating, and the second data line driving sub-circuit is not operating.
  • the reason why the driving method of the third embodiment is different from the driving method of the second embodiment and the effect is the same is that the structures of the OLED panels driven by the two are different.
  • the pixel unit in the odd-numbered rows of odd columns and the pixel units in the even-numbered even-numbered columns cannot be displayed, but are in odd rows and Pixel cells in even columns and pixel cells in even rows and in odd columns (blocks without plaque in Figure 10 can be displayed.
  • the driving method provided in the third embodiment can enable the pixel units on the OLED panel to be displayed at intervals. Since the area of each pixel unit is smaller than the area of the entire OLED panel, the interval display manner is adopted. The display quality of the OLED panel has little effect. In the meantime, the driving method provided in the third embodiment can reduce the power consumption of the OLED panel when the same brightness display is implemented.
  • a fourth embodiment provides a driving circuit for a display panel, the driving circuit of the display panel for driving the display panel.
  • the display panel is an OLED panel, but the driving circuit provided in this embodiment is not limited to the OLED panel.
  • the OLED panel includes: a plurality of gate lines and a plurality of data lines, the plurality of gate lines and the plurality of data lines define a plurality of pixel units, each pixel unit is connected to one gate line and one data line, and the plurality of data lines
  • the method includes: a plurality of first data lines and a plurality of second data lines, wherein the first data line of the first predetermined number of columns and the second data line of the second predetermined number of columns are alternately set;
  • the driving circuit of the display panel comprises: a gate line driving circuit connected to the gate line; and a data line driving circuit connected to the first data line and the second data line; the gate line driving circuit is configured to load the scanning signal to the gate line for scanning;
  • the data line driving circuit is configured to load the data voltage signal into the first data line or the second data line when scanning a row of gate lines.
  • the data line driving circuit includes: a first data line driving sub-circuit and a second data line driving sub-circuit, the first data line driving sub-circuit is configured to load the data voltage signal into the first data line; the second data line The driver subcircuit is for loading a data voltage signal into the second data line.
  • the driving circuit of the display panel provided in this embodiment can be used to implement the driving method provided in the first embodiment, the second embodiment, or the third embodiment.
  • the specific description of the working process of the driving circuit of the display panel refer to the first embodiment and the implementation. The description in the second embodiment or the third embodiment will not be repeated here.
  • the driving circuit provided in the fourth embodiment can make the pixel units on the OLED panel display at intervals. Since the area of each pixel unit is small relative to the area of the entire OLED panel, the manner of displaying the interval is not Will affect the picture display quality of the OLED panel. Meanwhile, when the OLED panel is driven by the driving circuit provided in the fourth embodiment, the energy consumption of the OLED panel is low.
  • Embodiment 5 further provides a display device including an OLED panel and a driving circuit, wherein the OLED panel comprises: a plurality of rows of gate lines and a plurality of columns of data lines, a plurality of rows of gate lines and a plurality of columns of data
  • the line defines a plurality of pixel units, each of the pixel units is connected to a gate line and a data line
  • the plurality of data lines includes: a plurality of first data lines and a plurality of second data lines, and the first predetermined number of columns
  • a data line and a second predetermined number of second data lines are alternately arranged
  • the driving circuit comprises the driving circuit in the fourth embodiment.

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Abstract

一种显示面板的驱动方法和驱动电路以及显示装置。显示面板包括栅线（G1-G4）、数据线（D1-D9）和像素单元。数据线（D1-D9）包括第一数据线（D1,D3,D5,D7,D9）和第二数据线（D2,D4,D6,D8），第一预定列数的第一数据线（D1,D3,D5,D7,D9）和第二预定列数的第二数据线（D2,D4,D6,D8）交替设置。驱动方法包括：依次对各行栅线（G1-G4）进行扫描，其中在对一行栅线（G1-G4）进行扫描时，向第一数据线（D1,D3,D5,D7,D9）或第二数据线（D2,D4,D6,D8）中加载数据电压信号。该驱动方法可使得OLED面板上的像素单元进行间隔显示，由于每个像素单元的面积相对整个OLED面板的面积来说是较小的，因此采用这种间隔显示的方式不会影响OLED面板的显示质量。同时，该驱动方法与现有技术的驱动方法相比，在实现相同亮度显示时，能使得OLED面板的功耗更低。

Description

显示面板的驱动方法和驱动电路以及显示装置 技术领域
本发明涉及显示技术领域，特别涉及一种显示面板的驱动方法和驱动电路以及显示装置。
背景技术
有机发光二极管(Organic Light Emitting Diode，OLED)是当今平板显示器研究领域的热点之一，与薄膜晶体管液晶显示器(Thin Fi lm Transistor-Liquid Crystal Display，TFT-LCD)相比，OLED面板具有低能耗、生产成本低、自发光、宽视角及响应速度快等优点。
OLED利用电流驱动来控制有机材料发光。具体地，在OLED面板中包括若干个像素单元，每个像素单元包括：开关管、驱动TFT和OLED，当像素单元对应的栅线将开关管导通时，该像素单元对应的数据线将数据电压信号传递给驱动TFT的栅极，驱动管根据该数据电压信号产生相应的驱动电流以控制OLED中的有机材料发光。
目前，当使用OLED面板阅读电子书或大篇幅的文字时，由于OLED面板的亮度非常高，因此会对人眼产生一定的损伤，而且高亮度会造成OLED面板的功耗较大。
为解决上述问题，现有技术中往往通过对数据电压信号的数据电压值进行调整，以减小驱动管产生的驱动电流，从而降低OLED的显示亮度。但是在实际操作中发现，通过减小驱动电流的方式来降低OLED面板的亮度时，OLED面板的功耗并不能得到较大程度的降低。例如，当OLED面板的亮度减小到正常亮度的一半时，对应的OLED面板的功耗并不能减小到正常亮度时OLED面板的功耗的一半。
发明内容
本发明提供一种显示面板的驱动方法和驱动电路以及一种显示装置，在保证显示面板的画面显示质量的前提下，可有效地降低显示面板的亮度和降低显示面板的功耗。
为实现上述目的，本发明提供了一种显示面板的驱动方法，所述显示面板包括：多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，第一预定列数的所述第一数据线和第二预定列数的所述第二数据线交替设置；所述驱动方法包括步骤：
依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号。
优选地，每个所述像素单元与位于其第一侧的所述数据线连接；
所述依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号的步骤包括：
依次对所述多行栅线进行扫描，其中，在对奇数行的所述栅线进行扫描时，向所述第一数据线中加载数据电压信号；
在对偶数行的所述栅线进行扫描时，向所述第二数据线中加载数据电压信号；或者
依次对所述各行栅线进行扫描，其中，在对奇数行的所述栅线进行扫描时，向所述第二数据线中加载数据电压信号；
在对偶数行的所述栅线进行扫描时，向所述第一数据线中加载数据电压信号。
优选地，奇数行的所述像素单元与位于其第一侧的所述数据线连接，偶数行的所述像素单元与位于其第二侧的所述数据线连接，所述第一侧与所述第二侧为所述像素单元的相对两侧；
所述依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号的步骤包括：
依次对所述各行栅线进行扫描，其中，在对每一行所述栅线进 行扫描时，向所述第一数据线中加载数据电压信号；或者
依次对所述多行栅线进行扫描，其中，在对每一行所述栅线进行扫描时，向所述第二数据线中加载数据电压信号。
优选地，所述第一预定列数与所述第二预定列数相等。
优选地，所述第一预定列数为1、2或3；
所述第二预定列数为1、2或3。
优选地，所述第一预定列数为1，所述第二预定列数也为1。
为实现上述目的，本发明提供一种显示面板的驱动电路，所述驱动电路用于对显示面板进行驱动，所述显示面板包括：多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，且第一预定列数的所述第一数据线和第二预定列数的所述第二数据线交替设置；
所述显示面板的驱动电路包括：与所述多行栅线连接的栅线驱动电路和与所述第一数据线和所述第二数据线连接的数据线驱动电路；
所述栅线驱动电路用于向所述栅线加载扫描信号以进行扫描；
所述数据线驱动电路用于在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号。
优选地，所述数据线驱动电路包括：第一数据线驱动子电路和第二数据线驱动子电路，
所述第一数据线驱动子电路用于向所述第一数据线中加载数据电压信号；
所述第二数据线驱动子电路用于向所述第二数据线中加载数据电压信号。
为实现上述目的，本发明提供一种显示装置，包括显示面板和驱动电路，所述显示面板包括多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，且第一预定列数的所述第一数据线和第二预定列数的所述第二 数据线交替设置；所述驱动电路包括上述任意一种显示面板的驱动电路。
本发明具有以下有益效果：
本发明提供了一种面板的驱动方法和驱动电路，其中该驱动方法用于对显示面板进行驱动，显示面板包括：多行栅线、多列数据线和多个像素单元，数据线包括：第一数据线和第二数据线，第一预定列数的第一数据线和第二预定列数的第二数据线交替设置，该驱动方法包括：依次对多行栅线进行扫描，在对一行栅线进行扫描时，向第一数据线或第二数据线中加载数据电压信号。在本发明中以显示面板为OLED面板为例，本发明提供的驱动方法可使得OLED面板上的像素单元进行间隔显示，由于每个像素单元的面积相对整个OLED面板的面积来说是较小的，因此采用这种间隔显示的方式对OLED面板的画面显示质量的影响较小。同时，本发明提供的驱动方法与现有技术的驱动方法相比，在实现相同亮度显示时，本发明提供的驱动方法可使得OLED面板的功耗更低。
附图说明
图1为本发明提供的一种OLED面板的示意图；
图2为本发明实施例二提供的图1所示的显示面板的驱动方法的流程图；
图3为图2所示的驱动方法的驱动时序图；
图4为图1所示的OLED面板采用图2所示的驱动方法进行驱动的效果示意图；
图5为单个像素单元加载的数据电压与产生的亮度的对应关系图；
图6为单个像素单元的功耗与产生的亮度的对应关系图；
图7为本发明实施例提供的另一OLED面板的示意图；
图8为本发明实施例三提供的图7所示的显示面板的驱动方法的流程图；
图9为图8所示的驱动方法的驱动时序图；以及
图10为图7所示的OLED面板采用图8所示的驱动方法进行驱动的效果示意图。
具体实施方式
为使本领域的技术人员更好地理解本发明的技术方案，下面结合附图对本发明提供的显示面板的驱动方法和驱动电路进行详细描述。
本发明实施例一提供了一种显示面板的驱动方法，该驱动方法用于对显示面板进行驱动。需要说明的是，本实施中以显示面板为OLED面板为例进行说明，但是本实施例提供的此种驱动方法不限于用于OLED面板。
其中，OLED面板包括：多行栅线和多列数据线，多行栅线和多列数据线限定多个像素单元，每个像素单元均与一条栅线和一条数据线连接，多条数据线包括：多条第一数据线和多条第二数据线，并且第一预定列数的第一数据线和第二预定列数的第二数据线交替设置；驱动方法包括：依次对各行栅线进行扫描，其中，在对一行栅线进行扫描时，仅向第一数据线或第二数据线中加载数据电压信号。
在本实施例中，由于在对一行栅线进行扫描时，仅第一数据线或者仅第二数据线上加载有数据电压信号，因此在一行像素单元(即，与该条栅线连接的像素单元)中，仅有部分的像素单元进行显示。本实施例提供的驱动方法与现有技术中采用的控制驱动电流的方法相比，在OLED面板实现相同的显示亮度的情况下，本实施例提供的驱动方法可使得OLED耗能更少。
本实施例中，第一预定列数可为1、2或3，第二预定列数也可为1、2或3。为保证OLED面板的显示效果，第一预定列数和第二预定列数可以取较小的值。
优选地，第一预定列数与第二预定列数相等，且第一预定列数为1，第二预定列数也为1。
下面通过一个具体的实施例二来对本发明提供的驱动方法进行详细的描述。
图1为本发明实施例提供的一种OLED面板的示意图，如图1所示，该OLED面板包括：多条栅线G1-G4和多条数据线D1-D9，多条栅线G1-G4和多条数据线D1-D9限定出多个像素单元，每个像素单元均与一条栅线和一条数据线连接。多条数据线具体包括：第一数据线D1、D3、D5、D7、D9和第二数据线D2、D4、D6、D8，并且，在图1中，1列第一数据线与1列第二数据线交替设置。具体地，第一数据线D1、第二数据线D2、第一数据线D3、第二数据线D4、第一数据线D5、第二数据线D6、第一数据线D7、第二数据线D8、第一数据线D9顺序设置。
需要说明的是，图1中仅示出了部分栅线和部分数据线，本领域技术人员应当知晓图1中的OLED面板中包括但不限于上述数量的栅线和数据线。
在OLED面板中，栅线可与栅线驱动电路连接，第一数据线和第二数据线可分别与数据线驱动电路连接。作为一个优选实施例，数据线驱动电路可包括：第一数据线驱动子电路和第二数据线驱动子电路，第一数据线驱动子电路与上述第一数据线连接，第二数据线驱动子电路与上述第二数据线连接。第一数据线驱动子电路用于向第一数据线中加载数据电压信号，第二数据线驱动子电路用于向第二数据线中加载数据电压信号。
此外，在图1所示的OLED面板中，每个像素单元均与位于其上侧的栅线连接，并且与位于其第一侧(即，左侧)的数据线连接。具体地，第一行像素单元均与栅线G1连接,第二行像素单元均与栅线G2连接,第三行像素单元均与栅线G3连接,第四行像素单元均与栅线G4连接；第一列像素单元均与第一数据线D1连接，第二列像素单元均与第二数据线D2连接，第三列像素单元均与第一数据线D3连接，第四列像素单元均与第二数据线D4连接，以此类推。图2为本发明实施例二提供的图1所示显示面板的驱动方法的流程图，图3为图2所示驱动方法的驱动时序图。如图2和图3所示，图2所示的驱动方法用于驱动图1所示的OLED面板，该驱动方法包括：
步骤101：依次对栅线G1-G4进行扫描，其中，在对奇数行栅线 (比如G1和G3)进行扫描时，向第一数据线中加载数据电压信号；在对偶数行栅线(比如G2和G4)进行扫描时，向第二数据线中加载数据电压信号。
具体地，以图1所示的OLED面板为例进行说明。本实施例提供的驱动方法包括逐行对栅线G1-G4进行扫描。
当对第一行的栅线G1进行扫描时，栅线驱动电路向栅线G1输出扫描信号以使栅线G1打开，其余栅线关闭。此时，第一行像素单元(即，与栅线G1连接的像素单元)全都处于数据可写入状态。第一数据线驱动子电路向第一数据线D1、D3、D5、D7、D9中加载数据电压信号，而第二数据线驱动子电路不工作，即第二数据线D2、D4、D6、D8中没有数据电压信号。因此在第一行像素单元中，仅处于奇数列(即，第一列、第三列、第五列、第七列)的像素单元会写入数据电压并进行显示，而处于偶数列的像素单元则不会写入数据电压，因此偶数列的像素单元不会进行显示。
需要说明的是，在图3中，栅线中的高电平代表相应的栅线加载有扫描信号，低电平代表相应的栅线没有加载扫描信号。数据线中的高电平代表相应的数据线中加载有数据电压信号，低电平代表数据线中没有加载数据电压信号。
当对第二行的栅线G2进行扫描时，栅线驱动电路向栅线G2输出扫描信号以使栅线G2打开，该扫描信号为高电平信号，其余栅线关闭。此时，第二行像素单元(即，与栅线G2连接的像素单元)全都处于数据可写入状态。第二数据线驱动子电路向第二数据线D2、D4、D6、D8中加载数据电压信号，而第一数据线驱动子电路不工作，即第一数据线D1、D3、D5、D7、D9中没有数据电压信号。因此在第二行像素单元中，仅处于偶数列(即，第二列、第四列、第六列、第八列)的像素单元会写入数据电压并进行显示，而处于奇数列的像素单元则不会写入数据电压，因此奇数列的像素单元不会进行显示。
当对第三行的栅线G3进行扫描时，栅线G3打开，仅第一数据线驱动子电路工作，而第二数据线驱动子电路不工作，因此在第三行像素单元中，仅处于奇数列的像素单元会进行显示，具体过程同上述 对栅线G1进行扫描时的过程，此处不再赘述。
当对第四行的栅线G4进行扫描时，栅线G4打开，仅第二数据线驱动子电路工作，而第一数据线驱动子电路不工作，因此在第四行像素单元中，仅处于偶数列的像素单元会进行显示，具体过程同上述对栅线G2进行扫描时的过程，此处不再赘述。
图4为图1所示的OLED面板采用图2所示的驱动方法进行驱动后的效果示意图。如图4所示，在OLED面板上，处于奇数行奇数列的像素单元和处于偶数行偶数列的像素单元(图4中带格纹的方块)能进行显示，而处于奇数行且处于偶数列的像素单元和处于偶数行且处于奇数列的像素单元(图4中不带格纹的方块)则不能进行显示。
当然，在对奇数行栅线(比如G1和G3)进行扫描时，也可向第二数据线中加载数据电压信号；而在对偶数行栅线(比如G2和G4)进行扫描时，可向第一数据线中加载数据电压信号。此时，在图4所示的OLED面板上，处于奇数行奇数列的像素单元和处于偶数行偶数列的像素单元(图4中带格纹的方块)则不能进行显示，而处于奇数行且处于偶数列的像素单元和处于偶数行且处于奇数列的像素单元(图4中不带格纹的方块)则能进行显示。
下面以实现相同亮度为前提，对本实施例提供的驱动方法与现有技术中的驱动方法两者对应OLED耗能情况进行比较。
图5为单个像素单元加载的数据电压与产生的亮度的对应关系图，图6为单个像素单元的功耗与产生的亮度的对应关系图。在图5中，横轴代表像素单元所加载的数据电压值，纵轴代表像素单元产生的亮度值，由图5可见，数据电压与亮度的对应关系为凸函数。在图6中，横轴代表像素单元的功耗，纵轴代表像素单元产生的亮度值，由图6可见，像素单元的功耗与亮度的对应关系也为凸函数。
本实施例中，假定每个像素单元正常显示的亮度为Y2，其对应的数据电压为Z2，功耗为X2；每个像素单元正常显示的亮度的一半为Y1，其对应的数据电压为Z1，功耗为X1，由于像素单元的功耗与亮度的对应关系满足凸函数，由此可推出：
Figure PCTCN2014090804-appb-000001
Figure PCTCN2014090804-appb-000002
以实现整个OLED面板呈现正常显示亮度的一半亮度为目标，采用现有技术中通过降低数据电压的方式进行驱动，则OLED面板的耗能总和为mX1(其中，m为OLED面板上的像素单元的总数)；而采用本实施例提供的驱动方法进行驱动，则在显示面板中仅一半的像素单元(例如，处于奇数行且处于奇数列的像素单元和处于偶数行且处于偶数列的像素单元)进行正常显示，相应地，本实施例中OLED面板的耗能总和为
Figure PCTCN2014090804-appb-000003
由于
Figure PCTCN2014090804-appb-000004
因此可以推出
Figure PCTCN2014090804-appb-000005
所以在相同亮度的前提下，本实施例提供的驱动方法的耗能更低。
需要说明的是，本发明实施例二提供的上述驱动方法仅为本发明的一种优选实施方式，并不对本发明的技术方案产生限制。本领域技术人员应该知晓的是，在实际应用中，在对奇数行的栅线进行扫描时，第二数据线驱动子电路向第二数据线中加载数据电压信号；而在对偶数行的栅线进行扫描时，第一数据线驱动子电路向第一数据线中加载数据电压信号。或者，在对特定行的栅线进行扫描时，第一数据线驱动子电路向第一数据线中加载数据电压信号；而在对剩余行的栅线进行扫描时，第二数据线驱动子电路向第二数据线中加载数据电压信号，以上情况均应该属于本发明的保护范围。
本实施例二提供了一种显示面板的驱动方法，以显示面板为OLED为例，该驱动方法可使得OLED面板上的像素单元进行间隔显示，由于每个像素单元的面积相对整个OLED的面积来说是较小的，因此采用这种间隔显示的方式对OLED面板的画面显示质量的影响较小。同时，本实施例二提供的驱动方法与现有技术的驱动方法相比，在实现相同亮度显示时，本实施例提供的驱动方法可使得OLED面板的功耗更低。
图7为本发明中提供的另一OLED面板的示意图。图7所示的OLED显示面板与图1所示的OLED显示面板的区别在于，在图7中奇数行的像素单元与位于其自身第一侧的数据线连接，偶数行的像素单 元与位于其自身第二侧的数据线连接，其中第一侧与第二侧为像素单元的相对两侧。在图7中，第一侧为像素单元的左侧，第二侧为像素单元的右侧。
以第一行和第二行的像素单元(即，分别与栅线G1和栅线G2连接的像素单元)为例。在第一行的像素单元(即，与栅线G1连接的像素单元)中，处于第一列的像素单元与第一数据线D1连接，处于第二列的像素单元与第二数据线D2连接，处于第三列的像素单元与第一数据线D3连接，以此类推。在第二行的像素单元(即，与栅线G2连接的像素单元)中，处于第一列的像素单元与第二数据线D2连接，处于第二列的像素单元与第一数据线D3连接，处于第三列的像素单元与第二数据线D4连接，以此类推。第三行的像素单元的连接同第一行的像素单元的连接，第四行的像素单元的连接同第二行的像素单元的连接，不予赘述。
图8为本发明实施例三提供的图7所示显示面板的驱动方法的流程图，图9为图8所示的驱动方法的驱动时序图。如图8和图9所示，图8所示的驱动方法用于驱动图7所示的OLED面板，该驱动方法包括：
步骤201：依次对栅线G1-G4进行扫描,其中，在对各行栅线进行扫描时，仅向第一数据线中加载数据电压信号。
具体地，以图7所示的OLED面板为例进行说明。本实施例提供的驱动方法包括逐行对栅线G1-G4进行扫描。
当对第一行的栅线G1进行扫描时，栅线驱动电路向栅线G1输出扫描信号以使栅线G1打开，该扫描信号为高电平信号，其余栅线关闭。此时，第一行像素单元(即，与栅线G1连接的像素单元)全都处于数据可写入状态。第一数据线驱动子电路向第一数据线D1、D3、D5、D7、D9中加载数据电压信号，而第二数据线驱动子电路不工作，即第二数据线D2、D4、D6、D8中没有数据电压信号。因此在第一行像素单元中，仅处于奇数列(第一列、第三列、第五列、第七列)的像素单元会写入数据电压并进行显示，而处于偶数列的像素单元则不会写入数据电压，因此偶数列的像素单元不会进行显示。
当对第二行的栅线G2进行扫描时，栅线驱动电路向栅线G2输出扫描信号以使栅线G2打开并进行扫描，该扫描信号为高电平信号，其余栅线关闭。此时，第二行像素单元(即，与栅线G2连接的像素单元)全都处于数据可写入状态。第一数据线驱动子电路向第一数据线D1、D3、D5、D7、D9中加载数据电压信号，而第二数据线驱动子电路不工作，即第二数据线D2、D4、D6、D8中没有数据电压信号。因此在第二行像素单元中，仅处于偶数列(第二列、第四列、第六列、第八列)的像素单元会写入数据电压并进行显示，而处于奇数列的像素单元则不会写入数据电压，因此奇数列的像素单元不会进行显示。
当对第三行的栅线G3进行扫描时，栅线G3打开，此时，仅第一数据线驱动子电路工作，而第二数据线驱动子电路不工作，因此在第三行像素单元中，仅处于奇数列的像素单元会进行显示，具体过程同上述对栅线G1进行扫描时的过程，此处不再赘述。
当对第四行的栅线G4进行扫描时，栅线G4打开，此时，仅第一数据线驱动子电路工作，而第二数据线驱动子电路不工作，因此在第四行像素单元中，仅处于偶数列的像素单元会进行显示，具体过程同上述对栅线G2进行扫描时的过程，此处不再赘述。
图10为图7所示的OLED面板采用图8所示的驱动方法进行驱动后的效果示意图。如图10所示，在OLED面板上，处于奇数行奇数列的像素单元和处于偶数行偶数列的像素单元(图10中带格纹的方块)能进行显示，而处于奇数行且处于偶数列的像素单元和处于偶数行且处于奇数列的像素单元(图10中不带格纹的方块)则不能进行显示。可见，本发明实施例三提供的驱动方法可实现与上述实施例二提供的驱动方法完全相同的效果。
本发明实施例三提供的驱动方法与上述实施例二提供的驱动方法的区别在于，在实施例三中无论是对奇数行栅线进行扫描还是对偶数行栅线进行扫描时，均仅有第一数据线驱动子电路在进行工作，而第二数据线驱动子电路不工作。而造成实施例三的驱动方法和实施例二的驱动方法不同而效果相同的原因是，两者驱动的OLED面板的结构不同。
以实现相同亮度为前提，实施例三提供的驱动方法与现有技术中的驱动方法两者的耗能情况的比较可参见上述实施二中的描述，此处不再赘述。
当然，在对各行栅线进行扫描时，也可仅向第二数据线中加载数据电压信号。此时，在图10所示的OLED面板上，处于奇数行奇数列的像素单元和处于偶数行偶数列的像素单元(图10中带格纹的方块)则不能进行显示，而处于奇数行且处于偶数列的像素单元和处于偶数行且处于奇数列的像素单元(图10中不带格纹的方块则能进行显示。
本实施例三提供的驱动方法，可使得OLED面板上的像素单元进行间隔显示，由于每个像素单元的面积相对整个OLED面板的面积来说是较小的，因此采用这种间隔显示的方式对OLED面板的画面显示质量的影响不大。同时，本实施例三提供的驱动方法与现有技术的驱动方法相比，在实现相同亮度显示时，本实施例提供的驱动方法可使得OLED面板的功耗更低。
需要说明的是在实施例二和实施例三中，仅示出了一列第一数据线与一列第二数据交替设置的情况，这仅作为本发明的优选实施例，并不对本申请的技术方案产生限制。本领域的技术人员应该知晓的是，本发明也可适用于多列第一数据线与多列第二数据线交替设置的情况，例如：当两列第一数据线与两列第二数据线交替设置时，则在OLED面板被驱动后，在一行像素单元中，连续的两个进行显示的像素单元与连续的两个不进行显示的像素单元交替出现。
根据本发明的另一方面，实施例四提供了一种显示面板的驱动电路，该显示面板的驱动电路用于对显示面板进行驱动。需要说明的是，本实施例中以显示面板为OLED面板为例，但是本实施例提供的此种驱动电路不限于用于OLED面板。
其中，OLED面板包括：多条栅线和多条数据线，多条栅线和多条数据线限定出多个像素单元，每个像素单元与一条栅线和一条数据线连接，多条数据线包括：多条第一数据线和多条第二数据线，且第一预定列数的第一数据线和第二预定列数的第二数据线交替设置；显 示面板的驱动电路包括：与栅线连接的栅线驱动电路和与第一数据线和第二数据线连接的数据线驱动电路；栅线驱动电路用于向栅线加载扫描信号以进行扫描；数据线驱动电路用于在对一行栅线进行扫描时，向第一数据线或第二数据线中加载数据电压信号。
可选地，数据线驱动电路包括：第一数据线驱动子电路和第二数据线驱动子电路，第一数据线驱动子电路用于向第一数据线中加载数据电压信号；第二数据线驱动子电路用于向第二数据线中加载数据电压信号。
本实施例提供的显示面板的驱动电路可用于实现上述实施例一、实施例二或者实施例三提供的驱动方法，该显示面板的驱动电路的工作过程的具体描述可参见上述实施例一、实施例二或实施例三中的描述，此处不再赘述。
本实施例四提供的驱动电路，可使得OLED面板上的像素单元进行间隔显示，由于每个像素单元的面积相对整个OLED面板的面积来说是较小的，因此采用这种间隔显示的方式不会影响OLED面板的画面显示质量。同时，在利用本实施例四提供的驱动电路对OLED面板进行驱动时，OLED面板的耗能较低。
根据本发明的又一方面，实施例五还提供了一种显示装置，包括OLED面板和驱动电路，其中，OLED面板包括：多行栅线和多列数据线，多行栅线和多列数据线限定出多个像素单元，每个像素单元与一条栅线和一条数据线连接，多条数据线包括：多条第一数据线和多条第二数据线，且第一预定列数的第一数据线和第二预定列数的第二数据线交替设置，驱动电路包括上述实施例四中的驱动电路。
需要说明的是，尽管本发明中的“行”和“列”可参照附图(例如，图1、图4、图7和图10)中所示的行和列，但本领域技术人员应理解，当将上述附图进行旋转，比如旋转90度时，“行”则变成了“列”，而“列”则变成了“行”。因此，本发明中的“行”和“列”包括但不限于附图所示。具体地，本发明中，栅线延伸的方向视为“行”，而数据线延伸的方向视为“列”。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而 采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

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  1. 一种显示面板的驱动方法，所述显示面板包括：多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，第一预定列数的所述第一数据线和第二预定列数的所述第二数据线交替设置；其特征在于，
    所述驱动方法包括步骤：
    依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号。
  2. 根据权利要求1所述的驱动方法，其特征在于，每个所述像素单元与位于其第一侧的所述数据线连接；
    所述依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号的步骤包括：
    依次对所述各行栅线进行扫描，其中，在对奇数行的所述栅线进行扫描时，向所述第一数据线中加载数据电压信号；
    在对偶数行的所述栅线进行扫描时，向所述第二数据线中加载数据电压信号；或者
    依次对所述各行栅线进行扫描，其中，在对奇数行的所述栅线进行扫描时，向所述第二数据线中加载数据电压信号；
    在对偶数行的所述栅线进行扫描时，向所述第一数据线中加载数据电压信号。
  3. 根据权利要求1所述的驱动方法，其特征在于，奇数行的所述像素单元与位于其第一侧的所述数据线连接，偶数行的所述像素单元与位于其第二侧的所述数据线连接，所述第一侧与所述第二侧为所述像素单元的相对两侧；
    所述依次对所述各行栅线进行扫描，其中，在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信 号的步骤包括：
    依次对所述各行栅线进行扫描，其中，在对每一行所述栅线进行扫描时，向所述第一数据线中加载数据电压信号；或者
    依次对所述多行栅线进行扫描，其中，在对每一行所述栅线进行扫描时，向所述第二数据线中加载数据电压信号。
  4. 根据权利要求1至3中任一项所述的驱动方法，其特征在于，所述第一预定列数与所述第二预定列数相等。
  5. 根据权利要求1至4中任一项所述的驱动方法，其特征在于，
    所述第一预定列数为1、2或3；
    所述第二预定列数为1、2或3。
  6. 根据权利要求5所述的驱动方法，其特征在于，所述第一预定列数为1，所述第二预定列数也为1。
  7. 一种显示面板的驱动电路，所述驱动电路用于对显示面板进行驱动，所述显示面板包括：多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，且第一预定列数的所述第一数据线和第二预定列数的所述第二数据线交替设置；其特征在于，
    所述显示面板的驱动电路包括：与所述多行栅线连接的栅线驱动电路和与所述第一数据线和所述第二数据线连接的数据线驱动电路；
    所述栅线驱动电路用于向所述栅线加载扫描信号以进行扫描；
    所述数据线驱动电路用于在对一行所述栅线进行扫描时，向所述第一数据线或所述第二数据线中加载数据电压信号。
  8. 根据权利要求7所述的显示面板的驱动电路，其特征在于， 所述数据线驱动电路包括：第一数据线驱动子电路和第二数据线驱动子电路，
    所述第一数据线驱动子电路用于向所述第一数据线中加载数据电压信号；
    所述第二数据线驱动子电路用于向所述第二数据线中加载数据电压信号。
  9. 一种显示装置，包括显示面板和驱动电路，所述显示面板包括多行栅线和多列数据线，所述多行栅线和所述多列数据线限定多个像素单元，每个所述像素单元与一行所述栅线和一列所述数据线连接，所述数据线包括：第一数据线和第二数据线，且第一预定列数的所述第一数据线和第二预定列数的所述第二数据线交替设置；所述驱动电路包括根据权利要求7或8所述的显示面板的驱动电路。
PCT/CN2014/090804 2014-06-26 2014-11-11 显示面板的驱动方法和驱动电路以及显示装置 Ceased WO2015196701A1 (zh)

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