WO2020258147A1 - 显示装置及显示驱动方法 - Google Patents

显示装置及显示驱动方法 Download PDF

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Publication number
WO2020258147A1
WO2020258147A1 PCT/CN2019/093239 CN2019093239W WO2020258147A1 WO 2020258147 A1 WO2020258147 A1 WO 2020258147A1 CN 2019093239 W CN2019093239 W CN 2019093239W WO 2020258147 A1 WO2020258147 A1 WO 2020258147A1
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Prior art keywords
data
display
driving circuit
voltage
display area
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PCT/CN2019/093239
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English (en)
French (fr)
Inventor
杨文强
熊彬
秦杰辉
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深圳市柔宇科技有限公司
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Application filed by 深圳市柔宇科技有限公司 filed Critical 深圳市柔宇科技有限公司
Priority to PCT/CN2019/093239 priority Critical patent/WO2020258147A1/zh
Priority to CN201980079847.4A priority patent/CN113348499A/zh
Publication of WO2020258147A1 publication Critical patent/WO2020258147A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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
    • G09G3/34—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

Definitions

  • the present application relates to a display technology, and in particular to a display device and a display driving method used for the display device.
  • AMOLED Active Matrix Organic Light Emitting Diode
  • OLED Organic Light Emitting Diode
  • AMOLED Active Matrix Organic Light Emitting Diode
  • the current AMOLED display device is driven by row scanning and column data lines, and the driving voltage output by the data driver is applied to the pixels in the corresponding column gated by the row scanning through the data line of each column.
  • the impedance of the data line itself, it will cause a voltage drop in the data voltage output by the data driver, and as the conduction distance of the data voltage increases, the voltage drop will be greater, making the pixels farther from the data driver receive The data voltage will be smaller, because the light-emitting brightness of the pixel depends on the applied data voltage, resulting in uneven light emission of the AMOLED display device.
  • the present application provides a display device and a display driving method, which can compensate for the attenuation of the data voltage caused by the conduction distance, and improve the light emission uniformity of the display device.
  • An embodiment of the present application provides a display device.
  • the display device includes a data driving circuit, a scan driving circuit, and a plurality of pixel units arranged in an array.
  • the plurality of pixel units arranged in an array are divided into at least two display regions, and each display region includes at least one row of pixel units.
  • the data driving circuit is electrically connected to a plurality of columns of pixel units through a plurality of data lines, and is used to provide data voltages for the corresponding column of pixel units according to the content to be displayed.
  • the scan driving circuit is electrically connected to a plurality of rows of pixel units through a plurality of scan lines, and is used to sequentially provide a scan voltage for each row of pixel units, wherein the scan driving circuit applies a data voltage to each display partition according to the data driving circuit.
  • the conduction distance adjusts the scan voltage applied to at least one row of pixel units in each display area, the scan driving circuit applies the scan voltage to at least one row of pixel units in each display area, and the data driving circuit applies the data voltage to each display area.
  • the display device includes a data driving circuit, a scanning driving circuit, and a plurality of pixel units arranged in an array, wherein the pixels arranged in an array
  • the unit is divided into at least two display partitions, each display partition includes at least one row of pixel units, and the display driving method includes: adjusting the transmission distance applied to each display partition according to the conduction distance of the data voltage applied by the data driving circuit to each display partition.
  • Scanning voltage of at least one row of pixel units wherein the scanning voltage applied by the scan driving circuit to at least one row of pixel units in each display partition is positively correlated with the conduction distance of the data voltage applied by the data driving circuit to each display partition; and
  • the scan driving circuit sequentially provides the adjusted scan voltage for at least one pixel unit in each display area.
  • the attenuation of the data voltage can be effectively compensated, so that the light emission provided to the pixel unit
  • the voltage of the device remains roughly constant, maintaining the uniformity of light emission.
  • FIG. 1 is a schematic structural diagram of a display device in an embodiment of the application.
  • FIG. 2 is a schematic plan view showing each display partition of the display device in an embodiment of the application.
  • FIG. 3 is a schematic plan view of a display device in another embodiment of the application showing each display partition.
  • FIG. 4 is a schematic diagram of a specific structure of a pixel unit in an embodiment of the application.
  • FIG. 5 is a schematic diagram of the relationship between the conduction degree of the switch tube and the gate-source voltage in an embodiment of the application.
  • FIG. 6 is a more specific structural diagram of a display device in an embodiment of the application.
  • FIG. 7 is a flowchart of a display driving method in an embodiment of the application.
  • FIG. 1 is a schematic structural diagram of a display device 100 in an embodiment of the application.
  • the display device 100 includes a data driving circuit 1, a scan driving circuit 2, and a plurality of pixel units 3 arranged in an array. Each pixel unit 3 can correspond to a pixel point of the display device 100.
  • the data driving circuit 1 and the scanning driving circuit 2 are coupled to the plurality of pixel units 3 arranged in an array.
  • the data driving circuit is electrically connected to several columns of pixel units 3 through several data lines D1, and is used to provide data voltages for the pixel units 3 of the corresponding column according to the content to be displayed.
  • the scan driving circuit 2 is electrically connected to a plurality of rows of pixel units 3 through a plurality of scan lines G1, and is used to sequentially provide scan voltages for each row of pixel units 3.
  • the scan driving circuit 2 applies a data voltage to each row according to the data driving circuit 1.
  • the conduction distance of a display area A1 adjusts the scan voltage applied to at least one row of pixel units 3 in each display area A1, and the scan driving circuit 2 applies to at least one row of pixel units 3 in each display area A1.
  • the conduction distance of the data driving circuit 1 applying the data voltage to each display area A1 is positively correlated.
  • the increase in the conduction distance causes the attenuation of the data voltage applied by the data driving circuit to the display partition to increase, by increasing the scan voltage, the attenuation of the data voltage can be effectively compensated.
  • the scanning voltage can be adjusted to provide the pixel unit 3
  • the voltage of the light-emitting device remains substantially unchanged, maintaining the uniformity of the overall light emission of the display device 100.
  • each data line D1 is sequentially connected to at least one row of pixel units 3 in each display area A1 of the corresponding column, and the conduction distance of the data driving circuit 1 applying the data voltage to each display area A1 is the data driving circuit The length L of the data line D1 connected between 1 and each display area A1.
  • each data line D1 is connected to the data driving circuit 1, and the other end of each data line D1 sequentially extends through each display area A1 and is connected to the pixel unit 3 of the corresponding column in the corresponding display area A1. Therefore, the data driving circuit 1 applies the corresponding data voltage to the pixel unit 3 of the corresponding column in each display area A1 through the data line D1, and the conduction distance of the data driving circuit 1 applying the data voltage to each display area A1 is the data driving circuit 1.
  • the length L of the data line D1 connected to each display area A1.
  • the data driving circuit 1 includes a number of data driving interfaces P1, and each data line D1 is connected to a corresponding data driving interface P1 and sequentially extends through at least one row in each display area A1 in a corresponding column.
  • the pixel units 3 are sequentially connected to at least one row of pixel units 3 in each display area A1.
  • the length of the data line D1 connected between the data driving circuit 1 and each display area A1 passes at least The length between the connection point N1 of a row of pixel units 3 connected to the data line D1 and the corresponding data driving interface P1 is obtained.
  • the length of the data line D1 connected between the data driving circuit 1 and the display area A1 is: within the display area A1 The average value of the distance between the connection point N1 of each row of pixel units 3 connected to the data line D1 and the corresponding data driving interface P1 in the data driving circuit 1.
  • the display area A1 at the top includes two rows of pixel units 3.
  • the first row of pixel units 3 is connected to the connection point N11 of the data line D1 and the data driving interface corresponding to the data driving circuit 1.
  • the distance between P1 is d1
  • the distance between the connection point N12 of the second row of pixel units 3 connected to the data line D1 and the corresponding data driving interface P1 in the data driving circuit 1 is d2.
  • the length of the data line D1 connected between the data driving circuit 1 and the display area A1 may be (d1+d2)/2.
  • the length of the data line D1 connected between the data driving circuit 1 and the display area A1 is: the display area A The distance between the connection point N1 of any row of pixel units 3 connected to the data line D1 and the data driving circuit 1.
  • the distance between the connection point N11 of the first row of pixel units 3 connected to the data line D1 and the corresponding data driving interface P1 in the data driving circuit 1 is d1
  • the second row of pixel units 3 The distance between the connection point N12 connected to the data line D1 and the corresponding data driving interface P1 in the data driving circuit 1 is d2.
  • the length of the data line D1 connected between the data driving circuit 1 and the display area A1 may be d1 or d2.
  • different data lines D1 connected by different data driving interfaces P1 of the data driving circuit 1 extend to the same distances of pixel units 3 in different columns of the same display area A1, so that in a certain row of the display area A1
  • the distance between the connection point N1 between the pixel unit 3 and the data line D1 in a certain column and the corresponding data drive interface P1 can be regarded as the connection point N1 between all the pixel units 3 in the row of the pixel unit 3 and the data line D1 The distance from the corresponding data-driven interface P1.
  • the distance between the connection point N1 of a row of pixel units 3 connected to the data line D1 and the data driving circuit 1 in this application refers to: the pixel unit 3 in any column of the row of pixel units 3 is connected to It corresponds to the distance between the connection point N1 of the data line D1 and the data driving interface P1 of the data driving circuit 1.
  • the number of rows of pixel units 3 included in different display areas A1 may be the same or different.
  • FIG. 2 is a schematic plan view showing each display area A1 of the display device 100 in an embodiment of this application. As shown in FIG. 2, the number of rows of pixel units 3 included in each display area A1 is the same.
  • FIG. 3 is a schematic plan view illustrating each display area A1 of the display device 100 in another embodiment of the present application. As shown in FIG. 3, the number of rows of pixel units 3 included in different display areas A1 is different.
  • the number of rows of pixel units 3 included in the partial display area A1 of the display device 100 may be the same, and the number of rows of pixel units 3 included in the partial display area A1 are different.
  • the number of rows of pixel units 3 included in each display area A1 is less than or equal to the preset number, so as to ensure that the data voltages of different rows in the same display area A1 have approximately the same attenuation due to the conduction distance, and the pixel units 3 emit The brightness is approximately equal, and by applying the same scanning voltage, the light-emitting brightness of the display area A1 can be adjusted to be approximately the same as that of other display areas A1.
  • the preset number can be preset according to the resolution and screen size of the display device 100. Specifically, the number of rows included in the unit preset distance of the display device 100 can be obtained according to the resolution and screen size of the display device 100, and the number of rows included in the unit preset distance can be used as the preset number.
  • the unit preset distance is a millimeter-level physical distance.
  • the multiple rows of pixel units 3 within the unit preset distance can be regarded as a whole, that is, the attenuation caused by the conduction distance is approximately the same, and the luminance of the pixel unit 3 is approximately Equal, etc.
  • the unit preset distance may be 0.2 mm or the like.
  • each pixel unit 3 has the same structure. As shown in FIG. 4, only the specific structure of one pixel unit is illustrated for description.
  • each pixel unit 3 may include a light-emitting display device J1 and a pixel driving circuit 32, and the pixel driving circuit 32 is used to drive the corresponding light-emitting display device J1 to emit light.
  • each pixel driving circuit 32 includes a scanning switch tube T1 and a driving switch tube T2.
  • the driving control circuit 1 also includes a driving power supply (not shown) for providing a positive voltage ELVDD.
  • the driving switch T2 of each pixel unit 3 is electrically connected between the positive voltage ELVDD, the scan switch T1 of the same pixel unit 3 and the positive terminal V+ of the light emitting display device J1 of the same pixel unit 3.
  • the negative terminal V- of the light emitting display device J1 of each pixel unit 3 is electrically connected to the ground potential point ELVSS.
  • all the pixel units 3 are connected to the same positive voltage ELVDD and ground potential point ELVSS.
  • the gate G of the scan switch tube T1 is connected to the corresponding scan line G1, and is electrically connected to the scan driving circuit 2 through the corresponding scan line G1.
  • the drain D of the scan switch T1 is connected to the corresponding data line D1, and is connected to the data driving circuit 1 through the corresponding data line D1.
  • the source S of the scan switch T1 is connected to the drive switch T2. Grid connection.
  • the drain D and source S of the driving switch tube T2 are respectively connected to the positive voltage ELVDD and the positive terminal V+ of the light emitting display device J1.
  • FIG. 5 is a schematic diagram of the relationship between the conduction degree of the scan switch tube T1 and the gate-source voltage Vgs.
  • the greater the gate-source voltage Vgs the greater the conduction degree of the scan switch T1, and the smaller the resistance of the scan switch T1, the smaller the divided voltage. Therefore, when the increase in the conduction distance causes the attenuation of the data voltage to increase, the gate-source voltage Vgs is increased by increasing the scan voltage, so that the resistance value of the scan switch tube T1 becomes smaller and the divided voltage is reduced.
  • the voltage supplied to the gate of the driving switch tube T2 can be kept substantially the same as when the data voltage is not attenuated, or the voltage supplied to the gate of the driving switch tube T2 in the pixel unit 3 in each display area A1 can be made Are all equal. Therefore, the conduction degree of the driving switch tube T2 is the same, and the voltage applied to the positive terminal V+ of the corresponding light-emitting display device J1 from the ELVDD in the pixel unit 3 in each display area A1 is the same. As a result, the light-emitting brightness of the pixel units 3 in all the display areas A1 can be approximately the same.
  • the light emitting display device J1 includes at least one Organic Light Emitting Diode (OLED) D1. Only one organic light-emitting diode D1 is shown in FIG. 4. Obviously, in other embodiments, the light-emitting display device J1 may include a plurality of devices connected in series or in parallel between the positive terminal V+ and the negative terminal V- of the light-emitting display device J1. Organic light emitting diode D1.
  • OLED Organic Light Emitting Diode
  • FIG. 6 is a more specific structural diagram of a display device in an embodiment of the application.
  • the display device 100 further includes an adjustment controller 4, which is coupled to the scan driving circuit 2, and the adjustment controller 4 is used for conducting distance and scanning according to a preset data voltage.
  • the corresponding relationship between the voltages and the conduction distance applied by the current data driving circuit to each display area A1 determines the current target scan voltage required for each display area A1, and outputs the corresponding control signal to the scan driving circuit 2 so that The scan driving circuit 2 adjusts the scan voltage applied to the pixel unit 3 in each display area A to a corresponding target scan voltage.
  • the display device 100 is preset with a corresponding relationship between the data voltage conduction distance and the scan voltage, and the conduction distance applied to each display area A1 by the data driving circuit can be obtained according to the corresponding relationship and , And can determine the target scan voltage required for each display area A1.
  • the preset correspondence between the data voltage conduction distance and the scan voltage defines the correspondence between multiple data voltage conduction distance intervals and the scan voltage
  • the adjustment controller 4 first determines the data driving circuit 1 The data voltage conduction distance interval in which the conduction distance applied to each display area A1 is located, and then the data voltage conduction distance interval and the scan voltage are defined according to the preset correspondence between the data voltage conduction distance and the scan voltage. The corresponding relationship determines the target scanning voltage required for each display area A1.
  • the display device 100 further includes a memory 5, and the memory 5 stores length data of the data line D1 connected between each display area A1 and the data driving circuit 1, wherein each display area A1
  • the length data of the data line D1 connected to the data driving circuit 1 is obtained according to pre-measurement or further calculation.
  • the length data is a length value.
  • the multiple distances between the connection point N1 of the multiple rows of pixel units 3 connected to the data line D1 of a certain display area A1 and the data driving interface P1 corresponding to the data driving circuit 1 can be measured in advance, Then, the average value of the multiple distances is used as the length of the data line D1 connected between the display area A1 and the data driving circuit 1.
  • the distance between the connection point N1 of any row of pixel units 3 connected to the data line D1 and the data driving circuit 1 in the display area A can be measured in advance, and any row of pixel units 3 can be connected to the The distance between the connection point N1 of the data line D1 and the data driving circuit 1 is taken as the length of the data line D1 connected between the display area A1 and the data driving circuit 1.
  • the adjustment controller 4 determines the length data of the data line D1 connected between each display area A1 and the data driving circuit A as the conduction distance applied by the data driving circuit 1 to each display area A1, and according to The correspondence between the preset data voltage conduction distance and the scan voltage and the current conduction distance applied by the data driving circuit to each display area A1 determine the current target scan voltage to be applied to each display area A1.
  • the correspondence relationship between the preset data voltage conduction distance and the scanning voltage may be a correspondence relationship table stored in the memory 5.
  • the corresponding relationship between the preset data voltage conduction distance and the scan voltage can be obtained by pre-analyzing the attenuation caused by different conduction distances and how much target scan is applied to compensate for the attenuation.
  • the display device 100 further includes a level shift controller 6.
  • the shift controller 6 is located between the adjustment controller 4 and the scan driving circuit 2.
  • the adjustment controller The control signal output by 4 is converted by the shift controller 6 and then output to the scan driving circuit 2.
  • control signal can be switched in level and timing through the shift controller 6.
  • the display device 100 further includes a timing controller 7.
  • the timing controller 7 is connected to the shift controller 6 and connected to the data driving circuit 1, and the timing controller 7 uses To generate corresponding various timing signals, and output to the data drive circuit 1 and output to the scan drive circuit 2 through the shift controller 6, and the data voltage output by the data drive circuit 1 and the scan drive circuit 2 output The timing of the voltage is controlled.
  • the scan driving circuit 2 is controlled to output scan voltages row by row
  • the data driving circuit 1 is controlled to output data voltages in corresponding columns according to the content to be displayed.
  • the display device 100 further includes a power supply module 8, which is used to supply power to the adjustment controller 4, the timing controller 7, etc.
  • the power supply module 8 may include DC/DC ( The DC-to-DC converter 81 is used to convert the connected voltage into a suitable working voltage to supply power to the regulating controller 4, the timing controller 7, etc.
  • the display device 100 may also include other devices, which are not described here because they are not related to the improvement of the present application.
  • the display device 100 is an AMOLED (Active Matrix Organic Light Emitting Diode; Active Matrix Organic Light Emitting Diode) display screen, display panel, etc. It can also be a mobile phone, tablet computer, TV, display, etc. including AMOLED display and display panel.
  • AMOLED Active Matrix Organic Light Emitting Diode
  • display panel etc. It can also be a mobile phone, tablet computer, TV, display, etc. including AMOLED display and display panel.
  • the aforementioned adjustment controller 4 may be a central processing unit, a microcontroller, a microprocessor, a single-chip microcomputer, a digital signal processor, etc.
  • the data driving circuit 1 and the scanning driving circuit 1 may be two physically independent driving chips, or may be integrated driving chips to form a whole.
  • the division of the display area A1 may be set by the manufacturer before leaving the factory, and the distance between each display area A1 and the data driving circuit 1 is also predetermined by the manufacturer and stored in the memory 5. in.
  • FIG. 7 is a flowchart of a display driving method in an embodiment of the application.
  • the display driving method is applied to a display device.
  • the display device includes a data drive circuit, a scan drive circuit, and a plurality of pixel units arranged in an array, wherein the pixel units arranged in an array are divided into at least two display regions, and each display region includes at least one row of pixel units, so
  • the display driving method includes:
  • S701 Adjust the scan voltage applied to at least one row of pixel units in each display area according to the conduction distance of the data voltage applied by the data driving circuit to each display area, wherein the scan driving circuit is applied to at least one row in each display area
  • the scan voltage of a row of pixel units is positively correlated with the conduction distance of the data voltage applied by the data driving circuit to each display area.
  • S703 Provide adjusted scan voltages to at least one row of pixel units in each display partition sequentially through the scan driving circuit.
  • the increase in the conduction distance causes the attenuation of the data voltage applied by the data driving circuit to the display partition to increase, by increasing the scan voltage, the attenuation of the data voltage can be effectively compensated.
  • the display driving method includes: according to the content to be displayed, a data driving circuit is used to provide data voltages to pixel units of a corresponding column.
  • the adjusting the scan voltage applied to at least one row of pixel units in each display area according to the conduction distance of the data voltage applied by the data driving circuit to each display area includes:
  • the scan driving circuit is controlled to adjust the scan voltage applied to the pixel unit in each display partition to a corresponding target scan voltage.
  • the preset correspondence between the data voltage conduction distance and the scan voltage defines the correspondence between multiple data voltage conduction distance intervals and the scan voltage, and the preset data voltage conduction distance and the scan voltage correspond to each other.
  • the correspondence between the voltages and the conduction distance applied by the current data driving circuit to each display partition determines the current target scanning voltage required for each display partition, and further includes:
  • the target scan voltage to be applied for each display partition is determined according to the correspondence between the plurality of data voltage conduction distance intervals defined in the preset correspondence between the data voltage conduction distance and the scan voltage and the scan voltage.
  • the display driving method further includes determining the conduction distance applied by the data driving circuit to each display partition.
  • the determining the conduction distance applied by the data driving circuit to each display partition may include: determining the data driving circuit according to preset length data of the data line connected between each display partition and the data driving circuit The conduction distance applied to each display area.
  • the data driving circuit includes a plurality of data driving interfaces, and each data line is connected to a corresponding data driving interface and sequentially extends through at least one row of pixel units located in each display partition in a corresponding column to sequentially connect with each display partition. At least one row of pixel units connected to each display area, the method further includes: obtaining each of the presets based on the length between the connection point of at least one pixel unit in each display area connected to the data line and the corresponding data drive interface Display the length data of the data line connected between the partition and the data drive circuit.
  • the length between the connection point of at least one pixel unit in each display area connected to the data line and the corresponding data drive interface is used to obtain the preset display area and data drive interface.
  • the length data of the data lines connected between the circuits including:
  • each row of pixel units in the display area is connected to the data line The average value of the length between the connection point and the corresponding data drive interface in the data drive circuit.
  • the length between the connection point of at least one pixel unit in each display area connected to the data line and the corresponding data drive interface is used to obtain the preset display area and data
  • the length data of the data lines connected between the driving circuits include:
  • the length of the data line connected between the data driving circuit and the display area is: any row of pixel units in the display area is connected to the data line The length between the connection point and the corresponding data drive interface in the data drive circuit.
  • the preset correspondence between the data voltage conduction distance and the scan voltage is a prestored correspondence table.
  • the display driving method can be applied to the aforementioned display device 100.
  • the steps included in the display driving method correspond to the functional steps performed by the aforementioned display device 100, and related descriptions may be cross-referenced.
  • the scan voltage applied to each display partition is proportional to the conduction distance of the data voltage applied by the data driving circuit to the corresponding display partition.
  • the scan voltage applied by the scan driving circuit is larger, so that the switch tube in the pixel unit in the corresponding display area becomes more conductive.
  • the display driving method provided in this application can be implemented in hardware and firmware, or can be used as software or computer code that can be stored in a computer-readable storage medium such as CD, ROM, RAM, floppy disk, hard disk, or magneto-optical disk, or can be As the computer code originally stored on a remote recording medium or a non-transitory machine-readable medium, downloaded via a network, and stored in a local recording medium, the method described here can use a general-purpose computer or a special processor or be used in such as ASIC or FPGA Such programmable or dedicated hardware is presented in software stored on a recording medium.
  • a computer, processor, microprocessor, controller, or programmable hardware includes memory components, such as RAM, ROM, flash memory, etc., when the computer, processor, or hardware implements the processing methods described here
  • the memory component can store or receive the software or computer code.
  • a general-purpose computer accesses the code for implementing the processing shown here, the execution of the code converts the general-purpose computer into a dedicated computer for executing the processing shown here.
  • the computer-readable storage medium may be a solid-state memory, a memory card, an optical disc, etc.
  • the computer-readable storage medium stores program instructions for the computer to call to execute the display driving method shown in FIG. 7.

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  • Computer Hardware Design (AREA)
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  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种显示驱动方法，应用于显示装置（100）中，显示装置（100）包括数据驱动电路（1）、扫描驱动电路（2）以及若干呈阵列排列的像素单元（3），呈阵列排列的像素单元（3）划分为了至少两个显示分区（A1），每一显示分区（A1）包括至少一行像素单元（3）；根据数据驱动电路（1）施加数据电压至每一显示分区（A1）的传导距离调整施加至每一显示分区（A1）中的至少一行像素单元（3）的扫描电压，其中，扫描电压与传导距离呈正相关；以及通过扫描驱动电路（2）依次为每一显示分区（A1）中的至少一个像素单元（3）提供调整后的扫描电压。在传导距离增大导致数据驱动电路（1）施加至显示分区（A1）的数据电压的衰减增大时，增加扫描电压，可有效对数据电压的衰减进行补偿，维持了发光的均匀性。

Description

显示装置及显示驱动方法 技术领域
本申请涉及一种显示技术，尤其涉及一种显示装置及用于所述显示装置的显示驱动方法。
背景技术
目前，OLED(Organic Light Emitting Diode；有机发光二极管)显示面板/显示屏等显示装置已经较广泛使用。其中的AMOLED(Active Matrix Organic Light Emitting Diode；主动矩阵式有机发光二极管)显示装置更是由于具有高显示性能以及低功耗等特点，为OLED显示装置中最为常用的类型。目前的AMOLED显示装置为通过行扫描以及列数据线驱动的方式，数据驱动器输出的驱动电压通过每列数据线施加至对应列中通过行扫描选通的像素。然而，由于数据线本身具有阻抗，会对数据驱动器输出的数据电压造成压降，且随着数据电压的传导距离的增大，压降会越大，而使得越远离数据驱动器的像素接收到的数据电压会越小，由于像素的发光亮度取决于所施加的数据电压，从而造成AMOLED显示装置发光不均匀。
发明内容
本申请提供一种显示装置及显示驱动方法，可补偿由于传导距离导致的数据电压的衰减，提高显示装置的发光均匀性。
本申请一实施例提供一种显示装置，所述显示装置包括数据驱动电路、扫描驱动电路以及若干呈阵列排列的像素单元。所述若干呈阵列排列的像素单元划分为了至少两个显示分区，每一显示分区包括至少一行像素单元。所述数据驱动电路通过若干数据线分别与若干列像素单元电连接，用于根据待显示内容为对应列像素单元提供数据电压。所述扫描驱动电路通过若干扫描线分别与若干行像素单元电连接，用于为每行像素单元依次提供扫描电压，其中，所述扫描驱动电路根据数据驱动电路施加数据电压至每一显示分区的传导距离调整 施加至每一显示分区中的至少一行像素单元的扫描电压，所述扫描驱动电路施加至每一显示分区中的至少一行像素单元的扫描电压与所述数据驱动电路施加数据电压至每一显示分区的传导距离呈正相关。
本申请另一实施例提供一种显示驱动方法，应用于一显示装置中，所述显示装置包括数据驱动电路、扫描驱动电路以及若干呈阵列排列的像素单元，其中，所述呈阵列排列的像素单元划分为了至少两个显示分区，每一显示分区包括至少一行像素单元，所述显示驱动方法包括：根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，其中，所述扫描驱动电路施加至每一显示分区中的至少一行像素单元的扫描电压与数据驱动电路施加数据电压至每一显示分区的传导距离呈正相关；以及通过扫描驱动电路依次为每一显示分区中的至少一个像素单元提供调整后的扫描电压。
本申请中，当传导距离增大导致数据驱动电路施加至显示分区的数据电压的衰减增大时，通过增加扫描电压，可有效对数据电压的衰减进行补偿，而使得提供至像素单元中的发光器件的电压大致保持不变，维持了发光的均匀性。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，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的前提下，还可以根据这些附图获得其他的附图。
图1为本申请一实施例中的显示装置的结构示意图。
图2为本申请一实施例中的显示装置的示意出各个显示分区的平面示意图。
图3为本申请另一实施例中的显示装置的示意出各个显示分区的平面示意图。
图4为本申请一实施例中的像素单元的具体结构示意图。
图5为本申请一实施例中的开关管的导通程度与栅源电压的关系示意图。
图6为本申请一实施例中的显示装置的更具体的结构示意图。
图7为本申请一实施例中的显示驱动方法的流程图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
请参阅图1，为本申请一实施例中的显示装置100的结构示意图。
如图1及图2所示，所述显示装置100包括数据驱动电路1、扫描驱动电路2以及若干呈阵列排列的像素单元3。每个像素单元3可对应形成显示装置100的一个像素点。数据驱动电路1、扫描驱动电路2与所述若干呈阵列排列的像素单元3耦接。
数据驱动电路通过若干数据线D1分别与若干列像素单元3电连接，用于根据待显示内容为对应列的像素单元3提供数据电压。
扫描驱动电路2通过若干扫描线G1分别与若干行像素单元3电连接，用于为每行像素单元3依次提供扫描电压，其中，所述扫描驱动电路2根据数据驱动电路1施加数据电压至每一显示分区A1的传导距离调整施加至每一显示分区A1中的至少一行像素单元3的扫描电压，所述扫描驱动电路2施加至每一显示分区A1中的至少一行像素单元3的扫描电压与数据驱动电路1施加数据电压至每一显示分区A1的传导距离呈正相关。
从而，当传导距离增大导致数据驱动电路施加至显示分区的数据电压的衰减增大时，通过增加扫描电压，可有效对数据电压的衰减进行补偿。
具体的，当数据驱动电路1施加数据电压至显示分区A1的传导距离越远时，所述扫描驱动电路2施加的扫描电压越大，从而使得对应的显示分区A1中像素单元3中的开关管导通程度越高，开关管的电阻值越小，所分的电压也越小，从而，即使由于传导距离增大而导致了数据电压的衰减，通过调节扫描 电压可使得提供至像素单元3中的发光器件的电压大致保持不变，维持了显示装置100整体发光的均匀性。
如图1所示，每一数据线D1与对应列的位于各个显示分区A1内的至少一行像素单元3依次连接，数据驱动电路1施加数据电压至每一显示分区A1的传导距离为数据驱动电路1与每一显示分区A1之间连接的数据线D1的长度L。
即，如图1所示，每一数据线D1的一端与数据驱动电路1，另一端依次延伸经过每一显示分区A1并与对应的显示分区A1中的对应列的像素单元3连接。从而，数据驱动电路1通过数据线D1施加对应数据电压至每一显示分区A1中对应列的像素单元3，数据驱动电路1施加数据电压至每一显示分区A1的传导距离即为数据驱动电路1与每一显示分区A1之间连接的数据线D1的长度L。
如图1所示，进一步的，数据驱动电路1包括若干数据驱动接口P1，每一数据线D1与一对应的数据驱动接口P1连接并依次延伸经过对应列的位于各个显示分区A1内的至少一行像素单元3而依次与每一显示分区A1内的至少一行像素单元3连接，所述数据驱动电路1与每一显示分区A1之间连接的数据线D1的长度通过每一显示分区A1内的至少一行像素单元3连接至数据线D1的连接点N1与对应的数据驱动接口P1之间的长度得出。
在一些实施例中，当某一显示分区A1包括至少两行像素单元3时，所述数据驱动电路1与所述显示分区A1之间连接的数据线D1的长度为：所述显示分区A1内的每一行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1中对应的数据驱动接口P1之间的距离的平均值。
例如，如图1所示，位于最上方的显示分区A1包括了两行像素单元3，第一行像素单元3连接至所述数据线D1的连接点N11与数据驱动电路1对应的数据驱动接口P1之间的距离为d1，第二行像素单元3连接至所述数据线D1的连接点N12与数据驱动电路1中对应的数据驱动接口P1之间的距离为d2。则，所述数据驱动电路1与所述显示分区A1之间连接的数据线D1的长度可为(d1+d2)/2。
在另一些实施例中，当某一显示分区A1包括至少两行像素单元3时，所 述数据驱动电路1与所述显示分区A1之间连接的数据线D1的长度为：所述显示分区A内的任一行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1之间的距离。
例如，如图1所示，第一行像素单元3连接至所述数据线D1的连接点N11与数据驱动电路1中对应的数据驱动接口P1之间的距离为d1，第二行像素单元3连接至所述数据线D1的连接点N12与数据驱动电路1中对应的数据驱动接口P1之间的距离为d2。则，所述数据驱动电路1与所述显示分区A1之间连接的数据线D1的长度可为d1或d2。
其中，本申请中，数据驱动电路1的不同的数据驱动接口P1连接出来的不同数据线D1延伸至同一显示分区A1的不同列的像素单元3的距离相等，从而，显示分区A1中某一行中位于某一列的像素单元3与数据线D1的连接点N1与对应的数据驱动接口P1之间的距离，可视为所述像素单元3所在行的所有像素单元3与数据线D1的连接点N1与对应的数据驱动接口P1之间的距离。因此，本申请中的一行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1之间的距离指的是：所述行像素单元3中位于任意列的像素单元3连接至对应数据线D1的连接点N1与数据驱动电路1的数据驱动接口P1之间的距离。
其中，不同显示分区A1包括的像素单元3的行数可相同，也可不同。
请参阅图2，为本申请一实施例中的显示装置100的示意出各个显示分区A1的平面示意图。如图2所示，每一显示分区A1包括的像素单元3的行数相同。
请参阅图3，为本申请另一实施例中的显示装置100的示意出各个显示分区A1的平面示意图。如图3所示，不同显示分区A1包括的像素单元3的行数不同。
显然，在其他实施例中，也可为所述显示装置100中的部分显示分区A1包括的像素单元3的行数相同，部分显示分区A1包括的像素单元3的行数不同。
在一些实施例中，每一显示分区A1包括的像素单元3的行数小于或等于预设数量，从而确保同一显示分区A1不同行的数据电压由于传导距离导致衰 减大致相同、像素单元3的发光亮度大致相等，以及通过施加相同的扫描电压能够实现对该显示分区A1的发光亮度进行调节而与其他显示分区A1的发光亮度大致相同。
其中，所述预设数量可根据显示装置100的分辨率和屏幕尺寸进行预先设置。具体的，可根据显示装置100的分辨率和屏幕尺寸得出显示装置100的单位预设距离内包括的行数，并将所述单位预设距离内包括的行数作为所述预设数量。
所述单位预设距离为毫米级的物理距离，在该单位预设距离内的多行像素单元3可视为一个整体，即，由于传导距离导致的衰减大致相同、像素单元3的发光亮度大致相等，等等。所述单位预设距离可为0.2毫米等值。
请一并参阅图4，为像素单元3的具体结构示意图。其中，每一像素单元3具有相同的结构，如图4所示，仅示意出一个像素单元的具体结构予以说明。其中，每一像素单元3可包括一发光显示器件J1以及一像素驱动电路32，所述像素驱动电路32用于驱动对应的发光显示器件J1发光。
其中，每一像素驱动电路32包括扫描开关管T1以及驱动开关管T2。所述驱动控制电路1还包括驱动电源(图未示)，用于提供正电压ELVDD。
如图4所示，每一像素单元3的驱动开关管T2电连接于正电压ELVDD、同一像素单元3的扫描开关管T1以及同一像素单元3的发光显示器件J1的正极端V+之间。每一像素单元3的发光显示器件J1的负极端V-与地势点ELVSS电连接。
其中，所有像素单元3连接至相同的正电压ELVDD和地势点ELVSS。
其中，扫描开关管T1的栅极G与对应的扫描线G1连接，并通过所述对应的扫描线G1与所述扫描驱动电路2电连接。
所述扫描开关管T1的漏极D与对应的数据线D1连接，并通过对应的数据线D1连接至所述数据驱动电路1，扫描开关管T1的源极S与所述驱动开关管T2的栅极连接。所述驱动开关管T2的漏极D和源极S分别与正电压ELVDD以及发光显示器件J1的正极端V+连接。
从而，当扫描驱动电路2施加的扫描电压不同时，扫描开关管T1的栅源电压Vgs不同，而使得扫描开关管T1的导通程度不同。
请一并参阅图5，为扫描开关管T1的导通程度与栅源电压Vgs的关系示意图。如图5所示，在达到导通阈值之前，栅源电压Vgs越大，扫描开关管T1的导通程度越大，从而扫描开关管T1的电阻值越小，所分的电压也越小。从而，当传导距离增大导致了数据电压的衰减增大时，通过增大扫描电压而使得栅源电压Vgs增大，从而使得扫描开关管T1的电阻值变小，分压减小。从而，能够使得提供至驱动开关管T2的栅极的电压大致保持和数据电压未衰减时相等，或者，使得每一显示分区A1内的像素单元3中提供至驱动开关管T2的栅极的电压都相等。从而，使得驱动开关管T2的导通程度相同，每一显示分区A1内的像素单元3中的ELVDD加载至对应的发光显示器件J1的正极端V+的电压相同。从而使得所有显示分区A1中的像素单元3的发光亮度可大致相同。
所述发光显示器件J1包括至少一个有机发光二极管(Organic Light Emitting Diode，OLED)D1。图4中仅示意出了一个有机发光二极管D1，显然在其他实施例中，所述发光显示器件J1可包括多个串联或并联于发光显示器件J1的正极端V+和负极端V-之间的有机发光二极管D1。
请参阅图6，为本申请一实施例中的显示装置的更具体的结构示意图。如图6所示，所述显示装置100还包括调节控制器4，所述调节控制器4与扫描驱动电路2耦接，所述调节控制器4用于根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区A1的传导距离确定当前每一显示分区A1所需施加的目标扫描电压，并输出相应的控制信号至所述扫描驱动电路2，以使得所述扫描驱动电路2将施加至每一显示分区A中的像素单元3的扫描电压调整至对应的目标扫描电压。
即，在一些实施例中，所述显示装置100预设有数据电压传导距离与扫描电压的对应关系，根据该对应关系以及可预先得出的数据驱动电路施加至每一显示分区A1的传导距离，而可以确定出每一显示分区A1所需施加的目标扫描电压。
在一些实施例中，所述预设的数据电压传导距离与扫描电压的对应关系中定义了多个数据电压传导距离区间与扫描电压的对应关系，所述调节控制器4先确定数据驱动电路1施加至每一显示分区A1的传导距离所位于的数据电压 传导距离区间，然后根据所述预设的数据电压传导距离与扫描电压的对应关系中定义的多个数据电压传导距离区间与扫描电压的对应关系确定出每一个显示分区A1所需施加的目标扫描电压。
从而，通过预先定义多个区间，无需每个传导距离对应一个扫描电压，减少了数据计算量以及简化了控制。
如图6所示，所述显示装置100还包括存储器5，存储器5中存储每一显示分区A1与数据驱动电路1之间连接的数据线D1的长度数据，其中，所述每一显示分区A1与数据驱动电路1之间连接的数据线D1的长度数据根据预先测量或进一步计算得出。其中，所述长度数据为长度值。
例如，如前所述，可预先测量某一显示分区A1的多行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1对应的数据驱动接口P1之间的多个距离，然后将多个距离的平均值作为所述显示分区A1与数据驱动电路1之间连接的数据线D1的长度。
又例如，可预先测量所述显示分区A内的任一行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1之间的距离，并将任一行像素单元3连接至所述数据线D1的连接点N1与数据驱动电路1之间的距离作为所述显示分区A1与数据驱动电路1之间连接的数据线D1的长度。
其中，所述调节控制器4将每一显示分区A1与数据驱动电路A之间连接的数据线D1的长度数据确定为所述数据驱动电路1施加至每一显示分区A1的传导距离，并根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区A1的传导距离确定当前每一显示分区A1所需施加的目标扫描电压。
其中，所述预设的数据电压传导距离与扫描电压的对应关系可为存储于所述存储器5中的对应关系表。所述预设的数据电压传导距离与扫描电压的对应关系可为通过预先分析不同传导距离带来的衰减以及施加多大的目标扫描可对所述衰减进行补偿而得出。
如图6所示，所述显示装置100还包括移位(level shift)控制器6，所述移位控制器6位于所述调节控制器4与所述扫描驱动电路2之间，调节控制器4输出的控制信号通过移位控制器6进行转换后输出至所述扫描驱动电路2。
例如，所述控制信号通过移位控制器6可进行电平和时序转换。
如图6所示，所述显示装置100还包括时序控制器7，所述时序控制器7与所述移位控制器6连接并与所述数据驱动电路1连接，所述时序控制器7用于产生相应的各类时序信号，并输出至数据驱动电路1以及通过移位控制器6输出至扫描驱动电路2，而对所述数据驱动电路1输出的数据电压以及扫描驱动电路2输出的扫描电压的时序进行控制。例如，控制所述扫描驱动电路2逐行输出扫描电压，控制数据驱动电路1根据待显示内容在相应列输出数据电压。
如图6所示，所述显示装置100还包括电源模块8，所述电源模块8用于对所述调节控制器4、时序控制器7等供电，所述电源模块8可包括DC/DC(直流转直流)转换器81，而用于将接入的电压转换成合适的工作电压为所述调节控制器4、时序控制器7等供电。
其中，所述显示装置100还可包括其他器件，由于与本申请改进无关，故未在此赘述。
其中，所述显示装置100为AMOLED(Active Matrix Organic Light Emitting Diode；主动矩阵式有机发光二极管)显示屏、显示面板等。也可为包括AMOLED显示屏、显示面板的手机、平板电脑、电视、显示器等设备。
其中，前述的调节控制器4可为中央处理器、微控制器、微处理器、单片机、数字信号处理器等。
其中，所述数据驱动电路1和扫描驱动电路1可为两个物理上相互独立的驱动芯片，也可为整合在一起构成一个整体的驱动芯片。
在一些实施例中，所述显示分区A1的划分可为在出厂前由厂家设定，每个显示分区A1与数据驱动电路1之间的距离，也为厂家预先确定得出并存储于存储器5中。
请参阅图7，为本申请一实施例中的显示驱动方法的流程图。所述显示驱动方法应用于一显示装置中。所述显示装置包括数据驱动电路、扫描驱动电路以及若干呈阵列排列的像素单元，其中，所述呈阵列排列的像素单元划分为了至少两个显示分区，每一显示分区包括至少一行像素单元，所述显示驱动方法包括：
S701：根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，其中，所述扫描驱动电路施加至每一显示分区中的至少一行像素单元的扫描电压与数据驱动电路施加数据电压至每一显示分区的传导距离呈正相关。
S703：通过扫描驱动电路依次为每一显示分区中的至少一行像素单元提供调整后的扫描电压。
从而，当传导距离增大导致数据驱动电路施加至显示分区的数据电压的衰减增大时，通过增加扫描电压，可有效对数据电压的衰减进行补偿。
在一些实施例中，所述显示驱动方法包括：根据待显示内容，通过数据驱动电路为对应列的像素单元提供数据电压。
在一些实施例中，所述根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，包括：
根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压；
控制所述扫描驱动电路将施加至每一显示分区中的像素单元的扫描电压调整至对应的目标扫描电压。
在一些实施例中，所述预设的数据电压传导距离与扫描电压的对应关系中定义了多个数据电压传导距离区间与扫描电压的对应关系，所述根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压，进一步包括：
确定数据驱动电路施加至每一显示分区的传导距离所位于的数据电压传导距离区间；
根据所述预设的数据电压传导距离与扫描电压的对应关系中定义的多个数据电压传导距离区间与扫描电压的对应关系确定出每一个显示分区所需施加的目标扫描电压。
在一些实施例中，所述显示驱动方法还包括：确定所述数据驱动电路施加至每一显示分区的传导距离。
其中，所述确定所述数据驱动电路施加至每一显示分区的传导距离，可包括：根据预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据确定所述数据驱动电路施加至每一显示分区的传导距离。
其中，所述数据驱动电路包括若干数据驱动接口，每一数据线与一对应的数据驱动接口连接并依次延伸经过对应列的位于各个显示分区内的至少一行像素单元而依次与每一显示分区内的至少一行像素单元连接，所述方法还包括：通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据。
在一些实施例中，所述通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据，包括：
当某一显示分区包括至少两行像素单元时，确定所述数据驱动电路与所述显示分区之间连接的数据线的长度为：所述显示分区内的每一行像素单元连接至所述数据线的连接点与所述数据驱动电路中对应的数据驱动接口之间的长度的平均值。
在另一些实施例中，所述通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据，包括：
当某一显示分区包括至少两行像素单元时，确定所述数据驱动电路与所述显示分区之间连接的数据线的长度为：所述显示分区内的任一行像素单元连接至所述数据线的连接点与数据驱动电路中对应的数据驱动接口之间的长度。
其中，所述预设的数据电压传导距离与扫描电压的对应关系为预存的对应关系表。
其中，所述显示驱动方法可应用于前述的显示装置100中。所述显示驱动方法包括的步骤与前述的显示装置100执行的功能步骤对应，相关的描述可相互参照。
从而，本申请的显示装置100及显示驱动方法，施加至每一显示分区的扫描电压与数据驱动电路施加至对应显示分区的数据电压的传导距离呈正比。当 数据驱动电路施加数据电压至显示分区的传导距离越远时，所述扫描驱动电路施加的扫描电压越大，从而使得对应的显示分区中像素单元中的开关管导通程度越高，开关管的电阻值越小，所分的电压也越小，从而即使由于传导距离增大导致了数据电压的衰减，提供至像素单元中的发光器件的电压大致保持不变。
本申请提供的显示驱动方法可以在硬件、固件中实施，或者可以作为可以存储在例如CD、ROM、RAM、软盘、硬盘或磁光盘的等计算机可读存储介质中的软件或计算机代码，或者可以作为原始存储在远程记录介质或非瞬时的机器可读介质上、通过网络下载并且存储在本地记录介质中的计算机代码，从而这里描述的方法可以利用通用计算机或特殊处理器或在诸如ASIC或FPGA之类的可编程或专用硬件中以存储在记录介质上的软件来呈现。如本领域能够理解的，计算机、处理器、微处理器、控制器或可编程硬件包括存储器组件，例如，RAM、ROM、闪存等，当计算机、处理器或硬件实施这里描述的处理方法而存取和执行软件或计算机代码时，存储器组件可以存储或接收软件或计算机代码。另外，当通用计算机存取用于实施这里示出的处理的代码时，代码的执行将通用计算机转换为用于执行这里示出的处理的专用计算机。
其中，所述计算机可读存储介质可为固态存储器、存储卡、光碟等。所述计算机可读存储介质存储有程序指令而供计算机调用后执行图7所示的显示驱动方法。
以上所述是本申请的优选实施例，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本申请的保护范围。

Claims (20)

  1. 一种显示装置，其特征在于，所述显示装置包括：
    若干呈阵列排列的像素单元，其中，所述呈阵列排列的像素单元划分为了至少两个显示分区，每一显示分区包括至少一行像素单元；
    数据驱动电路，通过若干数据线分别与若干列像素单元电连接，用于根据待显示内容为对应列像素单元提供数据电压；
    扫描驱动电路，通过若干扫描线分别与若干行像素单元电连接，用于为每行像素单元依次提供扫描电压，其中，所述扫描驱动电路根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，所述扫描驱动电路施加至每一显示分区中的至少一行像素单元的扫描电压与所述数据驱动电路施加数据电压至每一显示分区的传导距离呈正相关。
  2. 如权利要求1所述的显示装置，其特征在于，每一数据线与对应列的位于各个显示分区内的至少一行像素单元依次连接，所述数据驱动电路施加数据电压至每一显示分区的传导距离为数据驱动电路与每一显示分区之间连接的数据线的长度。
  3. 如权利要求2所述的显示装置，其特征在于，所述数据驱动电路包括若干数据驱动接口，每一数据线与一对应的数据驱动接口连接并依次延伸经过对应列的位于各个显示分区内的至少一行像素单元而依次与每一显示分区内的至少一行像素单元连接，所述数据驱动电路与每一显示分区之间连接的数据线的长度通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出。
  4. 如权利要求3所述的显示装置，其特征在于，当某一显示分区包括至少两行像素单元时，所述数据驱动电路与所述显示分区之间连接的数据线的长度为：所述显示分区内的每一行像素单元连接至所述数据线的连接点与数据驱动电路对应的数据驱动接口之间的距离的平均值。
  5. 如权利要求3所述的显示装置，其特征在于，当某一显示分区包括至少两行像素单元时，所述数据驱动电路与所述显示分区之间连接的数据线的长 度为：所述显示分区内的任一行像素单元连接至所述数据线的连接点与数据驱动电路对应的数据驱动接口之间的距离。
  6. 如权利要求2-5任一项所述的显示装置，其特征在于，所述显示装置还包括调节控制器，所述调节控制器与扫描驱动电路耦接，所述调节控制器用于根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压，并输出相应的控制信号至所述扫描驱动电路，以使得所述扫描驱动电路将施加至每一显示分区中的像素单元的扫描电压调整至对应的目标扫描电压。
  7. 如权利要求6所述的显示装置，其特征在于，所述预设的数据电压传导距离与扫描电压的对应关系中定义了多个数据电压传导距离区间与扫描电压的对应关系，所述调节控制器先确定数据驱动电路施加至每一显示分区的传导距离所位于的数据电压传导距离区间，然后根据所述预设的数据电压传导距离与扫描电压的对应关系中定义的多个数据电压传导距离区间与扫描电压的对应关系确定出每一个显示分区所需施加的目标扫描电压。
  8. 如权利要求6所述的显示装置，其特征在于，所述显示装置还包括存储器，存储器中存储每一显示分区与数据驱动电路之间连接的数据线的长度数据，其中，所述每一显示分区与数据驱动电路之间连接的数据线的长度数据根据预先测量得出，所述调节控制器将每一显示分区与数据驱动电路之间连接的数据线的长度数据确定为所述数据驱动电路施加至每一显示分区的传导距离，并根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压。
  9. 如权利要求8所述的显示装置，其特征在于，所述预设的数据电压传导距离与扫描电压的对应关系为存储于所述存储器中的对应关系表。
  10. 如权利要求8所述的显示装置，其特征在于，所述显示装置还包括移位控制器，所述移位控制器位于所述调节控制器与所述扫描驱动电路之间，调节控制器输出的控制信号通过移位控制器进行转换后输出至所述扫描驱动电路。
  11. 一种显示驱动方法，应用于一显示装置中，其特征在于，所述显示装置包括数据驱动电路、扫描驱动电路以及若干呈阵列排列的像素单元，其中，所述呈阵列排列的像素单元划分为了至少两个显示分区，每一显示分区包括至少一行像素单元，所述显示驱动方法包括：
    根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，其中，所述扫描驱动电路施加至每一显示分区中的至少一行像素单元的扫描电压与数据驱动电路施加数据电压至每一显示分区的传导距离呈正相关；以及
    通过扫描驱动电路依次为每一显示分区中的至少一个像素单元提供调整后的扫描电压。
  12. 如权利要求11所述的显示驱动方法，其特征在于，所述方法还包括：
    根据待显示内容，通过数据驱动电路为对应列的像素单元提供数据电压。
  13. 如权利要求11所述的显示驱动方法，其特征在于，所述根据数据驱动电路施加数据电压至每一显示分区的传导距离调整施加至每一显示分区中的至少一行像素单元的扫描电压，包括：
    根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压；
    控制所述扫描驱动电路将施加至每一显示分区中的像素单元的扫描电压调整至对应的目标扫描电压。
  14. 如权利要求13所述的显示驱动方法，其特征在于，所述预设的数据电压传导距离与扫描电压的对应关系中定义了多个数据电压传导距离区间与扫描电压的对应关系，所述根据预设的数据电压传导距离与扫描电压的对应关系以及当前数据驱动电路施加至每一显示分区的传导距离确定当前每一显示分区所需施加的目标扫描电压，包括：
    确定数据驱动电路施加至每一显示分区的传导距离所位于的数据电压传导距离区间；
    根据所述预设的数据电压传导距离与扫描电压的对应关系中定义的多个数据电压传导距离区间与扫描电压的对应关系确定出每一个显示分区所需施 加的目标扫描电压。
  15. 如权利要求11-14任一项所述的显示驱动方法，其特征在于，所述显示驱动方法还包括：
    确定所述数据驱动电路施加至每一显示分区的传导距离。
  16. 如权利要求15所述的显示驱动方法，其特征在于，所述确定所述数据驱动电路施加至每一显示分区的传导距离，包括：
    根据预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据确定所述数据驱动电路施加至每一显示分区的传导距离。
  17. 如权利要求16所述的显示驱动方法，其特征在于，所述数据驱动电路包括若干数据驱动接口，每一数据线与一对应的数据驱动接口连接并依次延伸经过对应列的位于各个显示分区内的至少一行像素单元而依次与每一显示分区内的至少一行像素单元连接，所述方法还包括：
    通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据。
  18. 如权利要求17所述的显示驱动方法，其特征在于，所述通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据，包括：
    当某一显示分区包括至少两行像素单元时，确定所述数据驱动电路与所述显示分区之间连接的数据线的长度为：所述显示分区内的每一行像素单元连接至所述数据线的连接点与数据驱动电路对应的数据驱动接口之间的长度的平均值。
  19. 如权利要求17所述的显示驱动方法，其特征在于，所述通过每一显示分区内的至少一个像素单元连接至数据线的连接点与对应的数据驱动接口之间的长度得出所述预设的每一显示分区与数据驱动电路之间连接的数据线的长度数据，包括：
    当某一显示分区包括至少两行像素单元时，确定所述数据驱动电路与所述显示分区之间连接的数据线的长度为：所述显示分区内的任一行像素单元连接 至所述数据线的连接点与数据驱动电路对应的数据驱动接口之间的长度。
  20. 如权利要求13所述的显示驱动方法，其特征在于，所述预设的数据电压传导距离与扫描电压的对应关系为预存的对应关系表。
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