WO2017049851A1 - 一种显示驱动方法、装置及显示装置 - Google Patents

一种显示驱动方法、装置及显示装置 Download PDF

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Publication number
WO2017049851A1
WO2017049851A1 PCT/CN2016/073927 CN2016073927W WO2017049851A1 WO 2017049851 A1 WO2017049851 A1 WO 2017049851A1 CN 2016073927 W CN2016073927 W CN 2016073927W WO 2017049851 A1 WO2017049851 A1 WO 2017049851A1
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Prior art keywords
data
integrated circuit
pixel circuits
rows
voltage
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PCT/CN2016/073927
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English (en)
French (fr)
Inventor
曾思衡
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京东方科技集团股份有限公司
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Priority to US15/307,980 priority Critical patent/US10269299B2/en
Publication of WO2017049851A1 publication Critical patent/WO2017049851A1/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]
    • G09G3/3275—Details of drivers for data electrodes
    • G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • 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
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • An exemplary embodiment of the present invention is directed to a display driving method, apparatus, and display device.
  • OLED organic light emitting diode
  • the OLED display device includes a power module, a source drive integrated circuit (IC), a gate drive integrated circuit (Gate Drive IC), and N rows*M columns of pixel circuits, and N and M are positive integers, respectively.
  • the Gate Drive IC is electrically connected to each pixel circuit in each row of pixel circuits through N scan lines
  • the Source Drive IC is electrically connected to each pixel circuit in each column of pixel circuits through M data lines, wherein the power modules are Source Drive ICs, respectively.
  • the Gate Drive IC and the pixel circuit are powered.
  • the existing Source Drive IC power supply voltage is preset.
  • the power supply module only needs to output the preset power supply voltage to the Source Drive IC.
  • the power consumption of the Source Drive IC power supply accounts for 17% to 20% of the total power consumption in the total power consumption of the OLED display device. How to reduce the power consumption of the Source Drive IC power supply is one of the key points to reduce the power consumption of OLED display devices.
  • a display driving method, apparatus, and display device are provided.
  • the power supply voltage supplied to the source driving integrated circuit is also relatively small. Reduce the power consumption of the source driver IC.
  • a display driving method comprising:
  • the desired supply voltage is provided to the source drive integrated circuit when the source drive integrated circuit outputs a data voltage to the successive k rows of pixel circuits in accordance with the determined magnitude of the desired supply voltage.
  • determining, according to the maximum voltage value, a magnitude of a power supply voltage required by the source driving integrated circuit to output a data voltage to the consecutive k rows of pixel circuits including:
  • the predetermined voltage value is greater than or equal to 0.2V.
  • the obtaining a data voltage that the source driving integrated circuit needs to output to each of the consecutive k rows of pixel circuits includes:
  • Data voltages to be output to each of the successive k rows of pixel circuits are calculated in accordance with the converted processed data corresponding to the consecutive k rows of pixel circuits.
  • the converting, the obtained data of the original red, green, and blue colors is converted to obtain the converted data, including:
  • the method further includes:
  • a display driving apparatus comprising:
  • An acquisition module configured to obtain a data voltage that the source driving integrated circuit needs to output to each pixel circuit of the continuous k-row pixel circuit, where k is an integer and not less than 1;
  • a first determining module configured to determine a maximum voltage value in a data voltage to be output to each of the consecutive k rows of pixel circuits
  • a second determining module configured to determine, according to the maximum voltage value, a magnitude of a power supply voltage required by the source driving integrated circuit to output a data voltage to the consecutive k rows of pixel circuits;
  • Providing a module for driving the integrated power of the source when the source driving integrated circuit outputs a data voltage to the continuous k-line pixel circuit according to the determined required power supply voltage The circuit provides the required supply voltage.
  • the second determining module is configured to:
  • the predetermined voltage value is greater than or equal to 0.2V.
  • the acquiring module includes:
  • An acquiring unit configured to acquire original red, green, and blue color data corresponding to the consecutive k rows of pixel circuits
  • a conversion unit configured to perform conversion processing on the obtained original red, green, and blue color data to obtain converted data
  • a calculating unit configured to calculate, according to the converted processed data corresponding to the consecutive k rows of pixel circuits, a data voltage to be output to each of the consecutive k rows of pixel circuits.
  • the conversion unit is configured to:
  • the device further includes a sending module, where the sending module is configured to:
  • a display device comprising a source The integrated circuit and the aforementioned display driving device are driven.
  • FIG. 1 is a structural block diagram of a module driving circuit of an OLED display device according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an array substrate according to an embodiment of the invention.
  • FIG. 3 is a flowchart of a display driving method according to an embodiment of the invention.
  • FIG. 4 is a flowchart of a display driving method according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display driving apparatus according to an embodiment of the invention.
  • FIG. 6 is a schematic structural diagram of a display driving apparatus according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a display device according to an embodiment of the invention.
  • first, second, and third are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance.
  • plurality refers to two or more, unless specifically defined otherwise.
  • an OLED display device includes an interface connector 10, a timing controller 20, a power module 30, a source drive IC 40, and a gate drive IC. 50 and array substrate 60. N rows*M columns of pixel circuits are arranged on the array substrate 60, and N and M are positive integers, respectively.
  • the interface connector 10 is connected to the timing controller 20 and the power module 30, respectively, for outputting image data to be displayed to the timing controller 20, and supplying power to the power module 30.
  • the power module 30 supplies power to the Timing Controller 20, the Source Drive IC 40, the Gate Drive IC 50, and the respective pixel circuits.
  • the timing controller 20 is connected to the Source Drive IC 40 and the Gate Drive IC 50, respectively, for outputting image data and control signals corresponding to the pixel circuits to the Source Drive IC 40, and outputting control signals to the Gate Drive IC 50.
  • the Source Drive IC 40 calculates the data voltage of the pixel circuit based on the image data corresponding to the pixel circuit output from the timing controller 20, and outputs the data voltage to the pixel circuit.
  • the Gate Drive IC 50 outputs a scan signal to the pixel circuit in accordance with a control signal output from the timing controller 20.
  • the power module 30 is connected to each pixel circuit through a power line OVDD to provide a driving voltage for each pixel circuit.
  • the Gate Drive IC 50 is electrically connected to each pixel circuit in each row of pixel circuits through N scanning lines.
  • the Source Drive IC 40 is electrically connected to each pixel circuit in each column of pixel circuits through M data lines.
  • the first row of pixel circuits includes a pixel circuit (1, 1), a pixel circuit (1, 2), ..., a pixel circuit (1, M), a total of M pixel circuits, which are commonly connected to the scan line Scan_1. .
  • the first column of pixel circuits includes a pixel circuit (1, 1), a pixel circuit (2, 1), ..., a pixel circuit (N, 1), a total of N circuits, which are commonly connected to the data line Data_1.
  • Gate Drive IC 50 inputs a scan signal to scan line Scan_1 to turn on the first row of pixel circuits;
  • Source Drive IC 40 synchronously inputs data voltages to N data lines, which is the first line that is turned on.
  • Each pixel circuit in the pixel circuit provides a data voltage.
  • the magnitude of the driving current of each pixel circuit in the pixel circuit of the first row is determined by the data voltage of the corresponding pixel circuit, thereby realizing the adjustment of the brightness of each pixel circuit.
  • the structure of the pixel circuit is not limited, and the structure of the pixel circuit may be the same as that of the existing pixel circuit.
  • FIG. 3 shows a display driving method according to an embodiment of the invention. Referring to Figure 3, the method includes the following steps:
  • Step S101 Obtain a data voltage that the source driving integrated circuit needs to output to each pixel circuit of the continuous k-row pixel circuits, where k is an integer and not less than 1.
  • k may be equal to one.
  • the k-line pixel circuit includes k*M pixel circuits, and each row of pixel circuits includes M pixel circuits.
  • the data voltage output by the source drive integrated circuit to the current row of pixel circuits includes the data voltage corresponding to each pixel circuit in the current row of pixel circuits.
  • the data voltage output by the source driver integrated circuit to the first row of pixel circuits shown in FIG. 2 includes the pixel circuit (1, 1), the pixel circuit (1, 2), ..., the pixel circuit (1, M).
  • M pixel circuits Corresponding data voltage.
  • the original red, green, and blue color data corresponding to all the pixel circuits included in the k-line pixel circuit can be obtained, and the source driving integrated circuit needs to be output to each pixel circuit of the k-line pixel circuit. Data voltage.
  • Step S102 determining a maximum voltage value among data voltages to be output to each of the pixel circuits of the continuous k rows.
  • the maximum voltage value may be the largest voltage value among the data voltages to be output to all the pixel circuits included in the continuous k-line pixel circuit.
  • Step S103 Determine, according to the maximum voltage value, a magnitude of a power supply voltage required by the source driving integrated circuit to output a data voltage to the continuous k-line pixel circuit.
  • the source driving integrated circuit requires a power supply voltage greater than the maximum voltage value when outputting the data voltage to the continuous k-line pixel circuit.
  • Step S104 Providing a required power supply voltage to the source driving integrated circuit when the source driving integrated circuit outputs the data voltage to the continuous k-line pixel circuit according to the determined magnitude of the required power supply voltage.
  • a source drive integrated circuit needs to output a data voltage to a continuous k-line pixel circuit according to a maximum voltage value among data voltages to be output to each of the successive k-line pixel circuits.
  • the power supply voltage required for the actual operation of the source driving integrated circuit dynamically adjusts the power supply voltage supplied to the source driving integrated circuit.
  • the power supply voltage supplied to the source driving integrated circuit is also Smaller; the power consumption of the source driver IC can be reduced compared to the supply voltage of the preset size supplied to the source driver IC.
  • FIG. 4 shows a display driving method according to another embodiment of the present invention. Compared with the method provided by the embodiment shown in FIG. 3, in the method provided by the embodiment, the original image data corresponding to the pixel circuit is first. Processing is performed to dynamically supply a power supply voltage to the source driving integrated circuit based on the processed image data.
  • the method includes the following steps:
  • Step S201 Acquire original red, green, and blue color data corresponding to consecutive k-line pixel circuits, where k is an integer and not less than 1.
  • k may be equal to one.
  • the original red, green, and blue color data corresponding to the continuous k-line pixel circuit includes the original red, green, and blue color data corresponding to each pixel circuit of the continuous k-line pixel circuits.
  • the original red, green, and blue color data corresponding to each pixel circuit in the continuous k-line pixel circuit can be obtained from the timing controller 20 shown in FIG.
  • red, green, and blue color data are generally grayscale values of red, green, and blue colors.
  • Step S202 Perform conversion processing on the obtained original red, green, and blue color data to obtain converted data.
  • the original red, green, and blue color data corresponding to each acquired pixel circuit is subjected to conversion processing.
  • the obtained original red, green, and blue color data is converted to reduce the power consumption of the source driving integrated circuit.
  • step S202 may further include converting the obtained original red, green, and blue color data into red, green, blue, and white color data.
  • the RGBW (red, green, blue, white) algorithm can be used to convert the acquired three colors of the original red, green, and blue data into red, green, blue, and white data.
  • This step S202 It may include, firstly, determining the smallest of the original red R, green G, and blue B three color data. Secondly, according to the smallest value (for example, the smallest grayscale value), the obtained original red, green, and blue color data is converted into red, green, blue, and white data.
  • the value of the white data ie, W data
  • W data may be the product of the smallest value and the preset ratio, and the preset ratio may be 0 to 1.
  • the values of the converted red R, green G, and blue B three-color data are the difference between the values of the original R, G, and B three-color data and the value of the W data.
  • the value of the converted R data is the difference between the value of the original R data and the value of the W data
  • the value of the converted G data is the difference between the value of the original G data and the value of the W data
  • the converted B The value of the data is the difference between the value of the original B data and the value of the W data.
  • the RGBW algorithm By using the RGBW algorithm to convert the original red, green and blue data into red, green, blue and white data, the image display effect is better, and the RGBW algorithm is easy to implement.
  • Step S203 calculating data voltages to be output to each of the successive k-line pixel circuits in accordance with the converted data corresponding to the consecutive k-line pixel circuits.
  • the converted data corresponding to each pixel circuit of the continuous k-row pixel circuits may be first converted into a luminance signal, and then the data voltage output by each pixel circuit is calculated according to the luminance signal.
  • the data voltages that the source drive integrated circuit needs to output to each pixel circuit of the continuous k-line pixel circuits are obtained by steps S201 to S203.
  • Step S204 determining a maximum voltage value among data voltages to be output to each of the pixel circuits of the continuous k rows.
  • the maximum voltage value may be the largest voltage value among the data voltages to be output to all the pixel circuits included in the continuous k-line pixel circuits.
  • the value may be the maximum voltage value of the data voltages corresponding to the M pixel circuits included in the pixel circuits of the second row, or may be the maximum voltage value of the data voltages corresponding to the M pixel circuits included in the pixel circuits of the third row.
  • Step S205 adding the maximum voltage value to the preset voltage value to obtain a magnitude of the power supply voltage required by the source driving integrated circuit to output the data voltage to the continuous k-row pixel circuit.
  • the preset voltage value may be an empirical value.
  • the operating voltage of the source driver integrated circuit is typically at least 0.2V higher than the maximum data voltage output by the source driver IC to the pixel circuit. Therefore, the preset voltage value can be greater than or equal to 0.2V. As a preferred embodiment, the preset voltage value may be 0.2V.
  • Step S206 Providing a required power supply voltage to the source driving integrated circuit when the source driving integrated circuit outputs the data voltage to the continuous k-line pixel circuit according to the determined magnitude of the required power supply voltage.
  • the power module can be controlled such that the magnitude of the power supply voltage output by the power module to the source driver integrated circuit is a determined required power supply voltage level.
  • Step S207 Before the source driving integrated circuit outputs the data voltage to the continuous k-row pixel circuit, the converted data corresponding to the continuous k-row pixel circuit is sent to the source driving integrated circuit.
  • the determined required power supply voltage is based on the continuous k-line pixel circuit corresponding to the turn
  • the processed data is obtained. Therefore, it is necessary to ensure that the source drive integrated circuit calculates the data voltage required by the pixel circuit in accordance with the converted data corresponding to the continuous k-line pixel circuits. To this end, the converted data corresponding to the successive k rows of pixel circuits is transmitted to the source drive integrated circuit before the source drive integrated circuit outputs the data voltage to the successive k rows of pixel circuits.
  • step S206 and step S207 can be performed simultaneously.
  • Embodiments of the present invention determine a power supply voltage required for a source drive integrated circuit to output a data voltage to a continuous k-line pixel circuit according to a maximum voltage value in a data voltage to be output to each pixel circuit of a continuous k-line pixel circuit. And the required supply voltage for the source driver IC when the source driver IC outputs the data voltage to the continuous k-line pixel circuit according to the determined required power supply voltage; this enables integration according to the source driver The power supply voltage required for the actual operation of the circuit dynamically adjusts the power supply voltage supplied to the source drive integrated circuit.
  • the power supply voltage supplied to the source drive integrated circuit is also relatively small;
  • the power consumption of the source driver integrated circuit can be reduced as compared to always providing a predetermined size of the power supply voltage to the source driver integrated circuit.
  • FIG. 5 shows a display driving device according to an embodiment of the present invention.
  • the device may be disposed in the timing controller 20 shown in FIG. 1 , and the device is suitable for the embodiment shown in FIG. 3 or FIG. 4 .
  • the apparatus includes an acquisition module 301, a first determination module 302, a second determination module 303, and a providing module 304.
  • the acquisition module 301 is configured to obtain a data voltage that the source drive integrated circuit needs to output to each of the successive k rows of pixel circuits; k is an integer and not less than one.
  • the first determining module 302 is configured to determine a maximum voltage value among data voltages to be output to each of the successive k rows of pixel circuits.
  • the second determining module 303 is configured to determine a magnitude of a power supply voltage required by the source drive integrated circuit to output a data voltage to the successive k rows of pixel circuits based on the maximum voltage value.
  • the supply module 304 is configured to provide the source drive integrated circuit with a desired supply voltage when the source drive integrated circuit outputs a data voltage to successive k rows of pixel circuits in accordance with the determined magnitude of the desired supply voltage.
  • Embodiments of the present invention determine a power supply voltage required for a source drive integrated circuit to output a data voltage to a continuous k-line pixel circuit according to a maximum voltage value in a data voltage to be output to each pixel circuit of a continuous k-line pixel circuit. And the required supply voltage for the source driver IC when the source driver IC outputs the data voltage to the continuous k-line pixel circuit according to the determined required power supply voltage; this enables integration according to the source driver The power supply voltage required for the actual operation of the circuit dynamically adjusts the power supply voltage supplied to the source drive integrated circuit.
  • the power supply voltage supplied to the source drive integrated circuit is also relatively small;
  • the power consumption of the source driver integrated circuit can be reduced as compared to always providing a predetermined size of the power supply voltage to the source driver integrated circuit.
  • FIG. 6 shows a display driving device according to another embodiment of the present invention, which may be disposed in the timing controller 20 shown in FIG. 1, and the device is suitable for the method provided by the embodiment shown in FIG. .
  • the apparatus includes an obtaining module 401, a first determining module 402, a second determining module 403, and a providing module 404.
  • the first determining module 402 and the providing module 404 are the same as the first determining module 302 and the providing module 304 in the device shown in FIG. 5, and details are not described herein again.
  • the apparatus provided in this embodiment differs from the apparatus shown in FIG. 5 in the following.
  • the second determining module 403 is configured to add the maximum voltage value to the preset voltage value to obtain the magnitude of the power supply voltage required by the source drive integrated circuit to output the data voltage to the continuous k-row pixel circuit.
  • the preset voltage value is greater than or equal to 0.2V.
  • the acquisition module 401 includes an acquisition unit 4011, a conversion unit 4012, and a calculation unit 4013.
  • the obtaining unit 4011 is configured to acquire original red, green, and blue color data corresponding to consecutive k-line pixel circuits.
  • the converting unit 4012 is configured to perform conversion processing on the acquired original red, green, and blue color data to obtain converted data.
  • the converting unit 4012 is configured to determine the smallest value among the acquired original red, green, and blue color data; and convert the acquired original red, green, and blue color data into Red, green, blue, and white data; the value of white data is equal to the product of the minimum value and the preset ratio; the values of the converted red, green, and blue data are the original red, green, and blue data. The difference between the value of the value and the value of the white data.
  • the calculation unit 4013 is configured to calculate a data voltage to be output to each of the consecutive k-line pixel circuits in accordance with the converted data corresponding to the continuous k-line pixel circuits.
  • the apparatus further comprises a transmitting module 405.
  • the transmitting module 405 is configured to transmit the converted processed data corresponding to the consecutive k rows of pixel circuits to the source driving integrated circuit before the source driving integrated circuit outputs the data voltage to the successive k rows of pixel circuits.
  • Embodiments of the present invention determine a power supply voltage required for a source drive integrated circuit to output a data voltage to a continuous k-line pixel circuit according to a maximum voltage value in a data voltage to be output to each pixel circuit of a continuous k-line pixel circuit. And the required supply voltage for the source driver IC when the source driver IC outputs the data voltage to the continuous k-line pixel circuit according to the determined required power supply voltage; this enables integration according to the source driver The power supply voltage required for the actual operation of the circuit dynamically adjusts the power supply voltage supplied to the source drive integrated circuit.
  • the power supply voltage supplied to the source drive integrated circuit is also relatively small;
  • the power consumption of the source driver integrated circuit can be reduced as compared to always providing a predetermined size of the power supply voltage to the source driver integrated circuit.
  • FIG. 7 shows a display device provided in accordance with an embodiment of the present invention.
  • the display device includes a source driving integrated circuit 501 and a display driving device 502.
  • the display driving device 502 may be the display driving device provided in the embodiment shown in FIG. 5 or FIG. 6 , and details are not described herein again.
  • Embodiments of the present invention determine a power supply voltage required for a source drive integrated circuit to output a data voltage to a continuous k-line pixel circuit according to a maximum voltage value in a data voltage to be output to each pixel circuit of a continuous k-line pixel circuit. And the required supply voltage for the source driver IC when the source driver IC outputs the data voltage to the continuous k-line pixel circuit according to the determined required power supply voltage; this enables integration according to the source driver The power supply voltage required for the actual operation of the circuit dynamically adjusts the power supply voltage supplied to the source drive integrated circuit.
  • the power supply voltage supplied to the source drive integrated circuit is also relatively small;
  • the power consumption of the source driver integrated circuit can be reduced as compared to always providing a predetermined size of the power supply voltage to the source driver integrated circuit.
  • the display driving device provided by the above embodiment is performing display driving, only the division of each functional module described above is illustrated. In an actual application, the function distribution may be completed by different functional modules as needed. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the display driving device and the display driving method embodiment are provided in the same concept, and the specific implementation process is described in detail in the device and method embodiments, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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  • Physics & Mathematics (AREA)
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Abstract

一种显示驱动方法、装置及显示装置，驱动方法包括：获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压(S101)，其中，k为整数其不小于1；确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值(S102)；根据最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小(S103)；以及按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压(S104)。当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比价小，从而能够降低源驱动集成电路的功耗。

Description

一种显示驱动方法、装置及显示装置
本申请要求于2015年9月21日递交的中国专利申请第201510603867.0号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本发明的示例性实施例涉及一种显示驱动方法、装置及显示装置。
背景技术
随着能源问题越来越被人们重视，人们也开始关注有机发光二极管(Organic Light Emitting Diode，简称OLED)显示装置的功耗问题。
OLED显示装置包括电源模块、源驱动(Source Drive)集成电路(Integrated Circuit，简称IC)、门驱动集成电路(Gate Drive IC)、以及N行*M列像素电路，N和M分别为正整数。Gate Drive IC通过N条扫描线与每行像素电路中各个像素电路电连接，Source Drive IC通过M条数据线与每列像素电路中各个像素电路电连接，其中，电源模块分别为Source Drive IC、Gate Drive IC和像素电路供电。
以Source Drive IC为例，现有的Source Drive IC电源电压是预先设定好的，在向Source Drive IC供电时，电源模块仅需输出预先设定好的电源电压至Source Drive IC。
基于现有的供电方式，经过测量，在OLED显示装置的总功耗中，Source Drive IC电源的功耗大概占了总功耗的17％～20％。如何能够降低Source Drive IC电源的功耗，是降低OLED显示装置功耗的重点之一。
发明内容
根据本发明示例性实施例提供的一种显示驱动方法、装置及显示装置，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小，从而能够降低源驱动集成电路的功耗。
根据本发明的第一方面，提供了一种显示驱动方法，包括：
获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，其中，k为整数且不小于1；
确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值；
根据所述最大电压值，确定所述源驱动集成电路在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小；以及
按照确定的所需的电源电压的大小，在所述源驱动集成电路向所述连续的k行像素电路输出数据电压时，为所述源驱动集成电路提供所述所需的电源电压。
在第一方面的第一实施方式中，根据所述最大电压值，确定所述源驱动集成电路在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小，包括：
将所述最大电压值与预设电压值相加，得到所述源驱动集成电路在向所述连续k行像素电路输出数据电压时所需的电源电压的大小。
在第一方面的第二实施方式中，所述预设电压值大于或等于0.2V。
在第一方面的第三实施方式中，所述获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，包括：
获取所述连续的k行像素电路对应的原始红、绿、蓝三色数据；
对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后 的数据；以及
按照所述连续的k行像素电路对应的转换处理后的数据，计算需向所述连续的k行像素电路中每一个像素电路输出的数据电压。
在第一方面的第四实施方式中，所述对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据，包括：
确定获取到的原始红、绿、蓝三色数据中最小的数值；以及
根据所述最小的数值，将所述获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据，其中白色数据的数值等于所述最小的数值与预设比例的乘积，转换后的红、绿、蓝三色数据的数值分别为原始红、绿、蓝三色数据的数值与所述白色数据的数值的差值。
在第一方面的第五实施方式中，所述方法还包括：
在所述源驱动集成电路向所述连续的k行像素电路输出数据电压之前，将所述连续的k行像素电路对应的转换处理后的数据发送给所述源驱动集成电路。
根据本发明的第二方面，提供了一种显示驱动装置，包括：
获取模块，用于获得所述源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，其中，k为整数且不小于1；
第一确定模块，用于确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值；
第二确定模块，用于根据所述最大电压值，确定所述源驱动集成电路在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小；以及
提供模块，用于按照确定的所需的电源电压的大小，在所述源驱动集成电路向所述连续的k行像素电路输出数据电压时，为所述源驱动集成电 路提供所述所需的电源电压。
在第二方面的第一实施方式中，所述第二确定模块用于：
将所述最大电压值与预设电压值相加，得到所述源驱动集成电路在向所述连续k行像素电路输出数据电压时所需的电源大小。
在第二方面的第二实施方式中，所述预设电压值大于或等于0.2V。
在第二方面的第三实施方式中，所述获取模块包括：
获取单元，用于获取所述连续的k行像素电路对应的原始红、绿、蓝三色数据；
转换单元，用于对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据；以及
计算单元，用于按照所述连续的k行像素电路对应的转换处理后的数据，计算需向所述连续的k行像素电路中每一个像素电路输出的数据电压。
在第二方面的第四实施方式中，所述转换单元用于：
确定获取到的原始红、绿、蓝三色数据中最小的数值；以及
根据所述最小的数值，将所述获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据，其中白色数据的数值等于所述最小的数值与预设比例的乘积，转换后的红、绿、蓝三色数据的数值分别为原始红、绿、蓝三色数据的数值与所述白色数据的数值的差值。
在第二方面的第五实施方式中，所述装置还包括发送模块，所述发送模块用于：
在所述源驱动集成电路向所述连续的k行像素电路输出数据电压之前，将所述连续的k行像素电路对应的转换处理后的数据发送给所述源驱动集成电路。
根据本发明的第三方面，提供了一种显示装置，所述显示装置包括源 驱动集成电路以及前述显示驱动装置。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述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发明的一些实施例，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是根据本发明实施例提供的OLED显示装置的模块驱动电路的结构框图；
图2是根据本发明实施例提供的阵列基板的结构示意图；
图3是根据本发明一实施例提供的一种显示驱动方法的流程图；
图4是根据本发明又一实施例提供的一种显示驱动方法的流程图；
图5是根据本发明一实施例提供的一种显示驱动装置的结构示意图；
图6是根据本发明又一实施例提供的一种显示驱动装置的结构示意图；以及
图7是根据本发明一实施例提供的一种显示装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，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，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“上”、“下”、“顶”、“底” 等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，在本发明中，术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性。术语“多个”指两个或两个以上，除非另有明确的限定。
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图对本发明实施方式作进一步地详细描述。
为便于理解本发明实施例提供的技术方案，首先简单介绍一下OLED显示装置的模块驱动电路。参见图1，OLED显示装置包括接口连接器(Interface Connector)10、定时控制器(Timing Controller)20、电源模块30、源驱动集成电路(Source Drive IC)40、门驱动集成电路(Gate Drive IC)50和阵列基板60。阵列基板60上布置有N行*M列像素电路，N和M分别为正整数。
接口连接器10分别与定时控制器20和电源模块30连接，用于向定时控制器20输出待显示的图像数据、以及为电源模块30提供电源。电源模块30分别为定时控制器(Timing Controller)20、Source Drive IC 40、Gate Drive IC 50和各个像素电路提供电源。定时控制器20分别与Source Drive IC 40和Gate Drive IC 50连接，用于向Source Drive IC 40输出像素电路对应的图像数据及控制信号、以及向Gate Drive IC 50输出控制信号。Source Drive IC 40根据定时控制器20输出的像素电路对应的图像数据而计算像素电路的数据电压，并输出数据电压至像素电路。Gate Drive IC 50根据定时控制器20输出的控制信号，输出扫描信号至像素电路。
参见图2，电源模块30通过电源线OVDD与各个像素电路连接，从而为各个像素电路提供驱动电压。Gate Drive IC 50通过N条扫描线与每行像素电路中各个像素电路电连接。Source Drive IC 40通过M条数据线与每列像素电路中各个像素电路电连接。例如，第一行像素电路，包括像素电路(1，1)、像素电路(1，2)、...、像素电路(1，M)共M个像素电路，其共同连在扫描线Scan_1上。第一列像素电路，包括像素电路(1，1)、像素电路(2，1)、...、像素电路(N，1)共N个电路，其共同连在数据线Data_1上。当第一行像素电路工作时，Gate Drive IC 50向扫描线Scan_1输入扫描信号，以开启第一行像素电路；Source Drive IC 40同步向N条数据线上输入数据电压，为开启的第一行像素电路中各个像素电路分别提供数据电压。第一行像素电路中各个像素电路的驱动电流的大小由对应的像素电路的数据电压决定，从而实现各个像素电路的亮度的调节。
需要说明的是，本实施例中对像素电路的结构不作限制，像素电路的结构也可以与现有的像素电路的结构相同。
图3显示了根据本发明一实施例提供的一种显示驱动方法。参见图3，该方法包括如下步骤：
步骤S101、获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，其中，k为整数且不小于1。
根据本发明的实施例，k可等于1。
需要说明的是，k行像素电路包括k*M个像素电路，且每一行像素电路包括M个像素电路。例如，源驱动集成电路向当前行像素电路输出的数据电压包括，当前行像素电路中每个像素电路对应的数据电压。例如，源驱动集成电路向图2示出的第一行像素电路输出的数据电压包括像素电路(1，1)、像素电路(1，2)、...、像素电路(1，M)共M个像素电路各自 对应的数据电压。
根据本发明的实施例，还可以根据k行像素电路包含的所有像素电路各自对应的原始红、绿、蓝三色数据，获得源驱动集成电路需向k行像素电路中每一个像素电路输出的数据电压。
步骤S102、确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值。
其中，该最大电压值可以是，需向连续的k行像素电路包含的所有像素电路输出的数据电压中最大的电压值。
步骤S103、根据最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小。
其中，源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压大于该最大电压值。
步骤S104、按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压。
根据本发明的实施例，根据需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小；并按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压；这样能够根据源驱动集成电路实际工作所需的电源电压，动态地调整提供给源驱动集成电路的电源电压，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小；相比于一直为源驱动集成电路提供预设大小的电源电压，能够降低源驱动集成电路的功耗。
图4显示了根据本发明又一实施例提供的一种显示驱动方法，与图3示出的实施例提供的方法相比，本实施例提供的方法中，先对像素电路对应的原始图像数据进行处理，再根据处理后的图像数据动态地为源驱动集成电路提供电源电压。参见图4，该方法包括如下步骤：
步骤S201、获取连续的k行像素电路对应的原始红、绿、蓝三色数据，其中，k为整数且不小于1。
根据本发明的实施例，k可等于1。
根据本发明的实施例，连续的k行像素电路对应的原始红、绿、蓝三色数据包括连续的k行像素电路中每一个像素电路对应的原始红、绿、蓝三色数据。
根据本发明的实施例，可以从图1示出的定时控制器20获得连续的k行像素电路中每一个像素电路对应的原始红、绿、蓝三色数据。
需要说明的是，原始红、绿、蓝三色数据一般是红、绿、蓝三色各自的灰阶值。
步骤S202、对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据。
根据本发明的实施例，对获取到的每一个像素电路对应的原始红、绿、蓝三色数据进行转换处理。
根据本发明的实施例，对获取到的原始红、绿、蓝三色数据进行转换处理是为了降低源驱动集成电路的功耗。作为可选的实施方式，步骤S202还可以包括，将获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据。
具体地，可以采用RGBW(红色、绿色、蓝色、白色)算法将获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据。本步骤S202 可以包括，首先，确定原始红R、绿G、蓝B三色数据中的最小的数值。其次，根据最小的数值(例如最小的灰阶值)，将获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据。其中，白色数据(即W数据)的数值可以是最小的数值与预设比例的乘积，所述预设比例可以为0～1。转换后的红R、绿G、蓝B三色数据的数值分别为原始R、G、B三色数据的数值与W数据的数值的差值。例如，转换后的R数据的数值为原始R数据的数值与W数据的数值的差值；转换后的G数据的数值为原始G数据的数值与W数据的数值的差值；转换后的B数据的数值为原始B数据的数值与W数据的数值的差值。
通过采用RGBW算法将获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据，图像的显示效果比较好，且RGBW算法容易实现。
需要说明的是，除了采用RGBW算法进行转换处理外，还可以采用能够降低图像的灰度的转换处理方式，本发明的实施例不限制转换处理方式。
步骤S203、按照连续的k行像素电路对应的转换处理后的数据，计算需向连续的k行像素电路中每一个像素电路输出的数据电压。
根据本发明的实施例，可以先将连续的k行像素电路中每一个像素电路对应的转换处理后的数据转换为亮度信号，再根据亮度信号计算每一个像素电路输出的数据电压。
通过步骤S201-步骤S203实现了获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压。
步骤S204、确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值。
根据本发明的实施例，该最大电压值可以是，需向连续的k行像素电路包含的所有像素电路输出的数据电压中最大的电压值。
假设每一行像素电路包括M个像素电路(参见图2)，如果k＝1，则确定的最大电压值为单行像素电路包含的M个像素电路对应的数据电压中最大的电压值。如果k＝3，则确定的最大电压值为连续的3行像素电路包含的M*3个像素电路对应的数据电压中最大的电压值。假设该连续的3行像素电路分别为第1行、第2行、第3行像素电路，则该最大电压值可以是第1行像素电路包含的M个像素电路对应的数据电压中的最大电压值，也可以是第2行像素电路包含的M个像素电路对应的数据电压中的最大电压值，还可以是第3行像素电路包括的M个像素电路对应的数据电压中的最大电压值。
步骤S205、将最大电压值与预设电压值相加，得到源驱动集成电路在向连续k行像素电路输出数据电压时所需的电源电压的大小。
根据本发明的实施例，预设电压值可以是经验值。例如，经过统计，源驱动集成电路的工作电压通常要比源驱动集成电路向像素电路输出的最大数据电压高至少0.2V，因此，该预设电压值可大于或等于0.2V。作为优选的实施方式，该预设电压值可以为0.2V。
步骤S206、按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压。
根据本发明的实施例，可以对电源模块进行控制，使电源模块输出至源驱动集成电路的电源电压的大小为确定的所需的电源电压大小。
步骤S207、在源驱动集成电路向连续的k行像素电路输出数据电压之前，将连续的k行像素电路对应的转换处理后的数据发送给源驱动集成电路。
由于确定的所需的电源电压大小是根据连续的k行像素电路对应的转 换处理后的数据得到的，因此，要确保源驱动集成电路是按照连续的k行像素电路对应的转换处理后的数据，计算像素电路所需的数据电压。为此，在源驱动集成电路向连续的k行像素电路输出数据电压之前，将连续的k行像素电路对应的转换处理后的数据发送给源驱动集成电路。
需要说明的是，步骤S206和步骤S207可以同时执行。
本发明实施例根据需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小；并按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压；这样能够根据源驱动集成电路实际工作所需的电源电压，动态地调整提供给源驱动集成电路的电源电压，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小；相比于一直为源驱动集成电路提供预设大小的电源电压，能够降低源驱动集成电路的功耗。
图5显示了根据本发明一实施例提供的一种显示驱动装置，该装置可以设置在图1示出的定时控制器20中，且该装置适用于图3或图4示出的实施例提供的方法。参见图5，该装置包括获取模块301、第一确定模块302、第二确定模块303和提供模块304。
获取模块301被配置为获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压；k为整数且不小于1。
第一确定模块302被配置为确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值。
第二确定模块303被配置为根据所述最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小。
提供模块304被配置为按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压。
本发明实施例根据需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小；并按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压；这样能够根据源驱动集成电路实际工作所需的电源电压，动态地调整提供给源驱动集成电路的电源电压，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小；相比于一直为源驱动集成电路提供预设大小的电源电压，能够降低源驱动集成电路的功耗。
图6显示了根据本发明又一实施例提供的一种显示驱动装置，该装置可以设置在图1示出的定时控制器20中，且该装置适用于图4示出的实施例提供的方法。参见图6，该装置包括获取模块401、第一确定模块402、第二确定模块403和提供模块404。其中，第一确定模块402和提供模块404分别与图5示出的装置中第一确定模块302和提供模块304相同，在此不再赘述。本实施例提供的装置与图5示出的装置的不同之处如下。
第二确定模块403被配置为将最大电压值与预设电压值相加，得到源驱动集成电路在向连续k行像素电路输出数据电压时所需的电源电压的大小。
根据本发明的实施例，预设电压值大于或等于0.2V。
根据本发明的实施例，获取模块401包括获取单元4011、转换单元4012和计算单元4013。
获取单元4011用于获取连续的k行像素电路对应的原始红、绿、蓝三色数据。
转换单元4012用于对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据。
根据本发明的实施例，转换单元4012用于确定获取到的原始红、绿、蓝三色数据中最小的数值；根据最小的数值，将获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据；白色数据的数值等于最小的数值与预设比例的乘积；转换后的红、绿、蓝三色数据的数值分别为原始红、绿、蓝三色数据的数值与白色数据的数值的差值。
计算单元4013用于按照连续的k行像素电路对应的转换处理后的数据，计算需向连续的k行像素电路中每一个像素电路输出的数据电压。
根据本发明的实施例，该装置还包括发送模块405。
该发送模块405被配置为在源驱动集成电路向连续的k行像素电路输出数据电压之前，将连续的k行像素电路对应的转换处理后的数据发送给源驱动集成电路。
本发明实施例根据需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小；并按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压；这样能够根据源驱动集成电路实际工作所需的电源电压，动态地调整提供给源驱动集成电路的电源电压，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小；相比于一直为源驱动集成电路提供预设大小的电源电压，能够降低源驱动集成电路的功耗。
图7显示了根据本发明实施例提供的一种显示装置。参见图7，该显示装置包括源驱动集成电路501和显示驱动装置502。
其中，该显示驱动装置502可以是图5或图6示出的实施例中提供的显示驱动装置，在此不再赘述。
本发明实施例根据需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值，确定源驱动集成电路在向连续的k行像素电路输出数据电压时所需的电源电压的大小；并按照确定的所需的电源电压的大小，在源驱动集成电路向连续的k行像素电路输出数据电压时，为源驱动集成电路提供所需的电源电压；这样能够根据源驱动集成电路实际工作所需的电源电压，动态地调整提供给源驱动集成电路的电源电压，当源驱动集成电路实际工作所需的电源电压比较小时，提供给源驱动集成电路的电源电压也比较小；相比于一直为源驱动集成电路提供预设大小的电源电压，能够降低源驱动集成电路的功耗。
需要说明的是：根据上述实施例提供的显示驱动装置在执行显示驱动时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的显示驱动装置与显示驱动方法实施例属于同一构思，其具体实现过程详见装置和方法实施例，这里不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局 限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (13)

  1. 一种显示驱动方法，包括：
    获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，其中，k为整数且不小于1；
    确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值；
    根据所述最大电压值，确定所述源驱动集成电路在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小；以及
    按照确定的所需的电源电压的大小，在所述源驱动集成电路向所述连续的k行像素电路输出数据电压时，为所述源驱动集成电路提供所述所需的电源电压。
  2. 根据权利要求1所述的方法，其中，根据所述最大电压值，确定所述源驱动集成电路在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小，包括：
    将所述最大电压值与预设电压值相加，得到所述源驱动集成电路在向所述连续k行像素电路输出数据电压时所需的电源电压的大小。
  3. 根据权利要求2所述的方法，其中，所述预设电压值大于或等于0.2V。
  4. 根据权利要求1-3任一所述的方法，其中，所述获得源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，包括：
    获取所述连续的k行像素电路对应的原始红、绿、蓝三色数据；
    对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据；以及
    按照所述连续的k行像素电路对应的转换处理后的数据，计算需向所述连续的k行像素电路中每一个像素电路输出的数据电压。
  5. 根据权利要求4所述的方法，其中，所述对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据，包括：
    确定获取到的原始红、绿、蓝三色数据中最小的数值；以及
    根据所述最小的数值，将所述获取到的原始红、绿、蓝三色数据转换为红、绿、蓝、白四色数据，其中白色数据的数值等于所述最小的数值与预设比例的乘积，转换后的红、绿、蓝三色数据的数值分别为原始红、绿、蓝三色数据的数值与所述白色数据的数值的差值。
  6. 根据权利要求4或者5所述的方法，还包括：
    在所述源驱动集成电路向所述连续的k行像素电路输出数据电压之前，将所述连续的k行像素电路对应的转换处理后的数据发送给所述源驱动集成电路。
  7. 一种显示驱动装置，包括：
    获取模块，用于获得所述源驱动集成电路需向连续的k行像素电路中每一个像素电路输出的数据电压，其中，k为整数且不小于1；
    第一确定模块，用于确定需向连续的k行像素电路中每一个像素电路输出的数据电压中的最大电压值；
    第二确定模块，用于根据所述最大电压值，确定所述源驱动集成电路 在向所述连续的k行像素电路输出数据电压时所需的电源电压的大小；以及
    提供模块，用于按照确定的所需的电源电压的大小，在所述源驱动集成电路向所述连续的k行像素电路输出数据电压时，为所述源驱动集成电路提供所述所需的电源电压。
  8. 根据权利要求7所述的装置，其中，所述第二确定模块用于：
    将所述最大电压值与预设电压值相加，得到所述源驱动集成电路在向所述连续k行像素电路输出数据电压时所需的电源电压的大小。
  9. 根据权利要求8所述的装置，其中，所述预设电压值大于或等于0.2V。
  10. 根据权利要求7-9任一所述的装置，其中，所述获取模块包括：
    获取单元，用于获取所述连续的k行像素电路对应的原始红、绿、蓝三色数据；
    转换单元，用于对获取到的原始红、绿、蓝三色数据进行转换处理，得到转换处理后的数据；以及
    计算单元，用于按照所述连续的k行像素电路对应的转换处理后的数据，计算需向所述连续的k行像素电路中每一个像素电路输出的数据电压。
  11. 根据权利要求10所述的装置，其中，所述转换单元用于：
    确定获取到的原始红、绿、蓝三色数据中最小的数值；以及
    根据所述最小的数值，将所述获取到的原始红、绿、蓝三色数据转换 为红、绿、蓝、白四色数据，其中白色数据的数值等于所述最小的数值与预设比例的乘积，转换后的红、绿、蓝三色数据的数值分别为原始红、绿、蓝三色数据的数值与所述白色数据的数值的差值。
  12. 根据权利要求10或者11所述的装置，其中，所述装置还包括发送模块，所述发送模块用于：
    在所述源驱动集成电路向所述连续的k行像素电路输出数据电压之前，将所述连续的k行像素电路对应的转换处理后的数据发送给所述源驱动集成电路。
  13. 一种显示装置，所述显示装置包括源驱动集成电路以及如权利要求7至12中任一项所述的显示驱动装置。
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