WO2020220447A1 - 显示面板驱动系统及显示面板驱动方法 - Google Patents

显示面板驱动系统及显示面板驱动方法 Download PDF

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Publication number
WO2020220447A1
WO2020220447A1 PCT/CN2019/092460 CN2019092460W WO2020220447A1 WO 2020220447 A1 WO2020220447 A1 WO 2020220447A1 CN 2019092460 W CN2019092460 W CN 2019092460W WO 2020220447 A1 WO2020220447 A1 WO 2020220447A1
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WIPO (PCT)
Prior art keywords
display
source driver
power management
temperature
display data
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Ceased
Application number
PCT/CN2019/092460
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English (en)
French (fr)
Inventor
陈小龙
温亦谦
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication of WO2020220447A1 publication Critical patent/WO2020220447A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/041—Temperature compensation

Definitions

  • the present invention relates to the field of display technology, in particular to a display panel driving system and a display panel driving method.
  • liquid crystal display devices such as Liquid Crystal Display (LCD) and Organic Light-Emitting Diode (OLED) displays have gradually replaced cathode ray tubes (Cathode ray tubes). Ray Tube, CRT) display device.
  • the liquid crystal display device has many advantages such as thin body, power saving, and no radiation, and has been widely used.
  • liquid crystal display devices which include a liquid crystal display panel and a backlight module.
  • a liquid crystal display panel consists of a color filter (CF) substrate, a thin film transistor (TFT) array substrate, and a liquid crystal (Liquid) sandwiched between the color filter (CF) substrate and the thin film transistor array substrate.
  • Crystal, LC) and sealant frame (Sealant) The working principle of the liquid crystal display panel is to place liquid crystal molecules between two parallel glass substrates. There are many vertical and horizontal small wires between the two glass substrates. The liquid crystal molecules are controlled to change direction by powering on or not, and the light of the backlight module Refraction produces a picture.
  • OLED usually includes: a substrate, an anode provided on the substrate, a hole injection layer (HIL) provided on the anode, a hole transport layer (HTL) provided on the hole injection layer, and a hole transport layer (HTL) provided on the hole transport layer.
  • HIL hole injection layer
  • HTL hole transport layer
  • HTL hole transport layer
  • HTL hole transport layer
  • HTL hole transport layer
  • the light-emitting principle of OLED display devices is that semiconductor materials and organic light-emitting materials are driven by an electric field to cause light emission through carrier injection and recombination.
  • the data voltage switching rate output by the source driver for transmitting the data voltage to the display panel becomes faster.
  • the amount of change in the absolute value of the difference between the data voltage and the preset common voltage is relatively large, which easily causes the temperature rise and power consumption of the source driver to increase, which reduces the quality of the product.
  • the object of the present invention is to provide a display panel driving system, which can reduce the operating temperature and driving power consumption of the source driver, and the product quality is high.
  • Another object of the present invention is to provide a method for driving a display panel, which can reduce the operating temperature and driving power consumption of the source driver.
  • the present invention first provides a display panel driving system, including a source driver, a timing control and power management module electrically connected to the source driver, and a temperature sensor electrically connected to the timing control and power management module Device
  • the temperature sensor is used to sense the temperature of the source driver and generate an indication signal, which is then transmitted to the timing control and power management module.
  • the indication signal corresponds to the temperature of the source driver in a plurality of preset continuous temperature intervals Corresponding to the temperature range;
  • the timing control and power management module accesses display data and outputs a set of gamma voltages and display gray levels corresponding to the connected display data to the source driver according to the instruction signal transmitted by the temperature sensor;
  • the source driver generates and outputs data voltages according to the received display gray levels and a set of gamma voltages.
  • the change in the absolute value of the difference between the data voltage and the preset common voltage is less than
  • the temperature of the source driver is located at the lower one of the any two preset temperature ranges, display the amount of change in the absolute value of the difference between the data voltage and the preset common voltage after the data changes by the arbitrary amount .
  • the timing control and power management module stores a plurality of groups of gamma voltages corresponding to a plurality of preset temperature intervals and a look-up table corresponding to display data and display gray levels, and the timing control and power management module receives After indicating the signal, a group of gamma voltages corresponding to the temperature range corresponding to the indicating signal is transmitted to the source driver, and the display data and the display gray scale correspondence look-up table are used to obtain the display gray scale corresponding to the connected display data And transmit to the source driver; or,
  • the timing control and power management module stores a plurality of display data corresponding to a plurality of preset temperature intervals and a gray scale lookup table and a set of gamma voltages, the timing control and power management module After receiving the indication signal, use the display data corresponding to the temperature interval corresponding to the indication signal and the display gray scale correspondence look-up table to obtain the display gray scale corresponding to the display data connected to it, and store the display gray scale and its storage A set of gamma voltages are transmitted to the source driver; or,
  • the timing control and power management module stores a plurality of groups of gamma voltages respectively corresponding to a plurality of preset temperature intervals, and a plurality of display data corresponding to a plurality of preset temperature intervals, and a corresponding relationship of a display gray scale. After receiving the instruction signal, the timing control and power management module uses the display data corresponding to the temperature interval corresponding to the instruction signal and the display gray scale corresponding relationship look-up table to obtain the display gray corresponding to the display data it is connected to. And transmit a group of gamma voltages corresponding to the temperature interval corresponding to the indication signal and the display gray scale to the source driver.
  • the timing control and power management module includes a timing controller and a power management chip; both the timing controller and the power management chip are electrically connected to the source driver; the timing controller accesses display data.
  • the power management chip is electrically connected to a temperature sensor to receive an indication signal transmitted by the temperature sensor, and the power management chip stores multiple groups of gamma voltages corresponding to multiple preset temperature intervals, and the power source After receiving the indication signal, the management chip transmits a group of gamma voltages corresponding to the temperature interval corresponding to the indication signal to the source driver;
  • the timing controller stores a look-up table for the correspondence between display data and display gray levels, and the timing controller uses the display data and the display gray-level correspondence look-up table to obtain the display gray levels corresponding to the display data it is connected to and transmit to the source Pole drive.
  • the timing controller is electrically connected to the temperature sensor to receive the instruction signal transmitted by the temperature sensor, and the timing controller stores a plurality of display data corresponding to a plurality of preset temperature intervals and corresponding display gray levels Relation gray level look-up table. After receiving the indication signal, the timing controller uses the display data corresponding to the temperature interval corresponding to the indication signal and the display gray level correspondence look-up table to obtain the display gray corresponding to the connected display data. Step and transmit to the source driver;
  • the power management module stores a set of gamma voltages, and the power management module transmits the stored set of gamma voltages to the source driver.
  • the power management chip is electrically connected to a temperature sensor to receive an indication signal transmitted by the temperature sensor, and the power management chip stores multiple groups of gamma voltages corresponding to multiple preset temperature intervals, and the power source After receiving the indication signal, the management chip transmits a group of gamma voltages corresponding to the temperature interval corresponding to the indication signal to the source driver;
  • the timing controller is electrically connected to the temperature sensor to receive the instruction signal transmitted by the temperature sensor, and the timing controller stores a plurality of display data corresponding to a plurality of preset temperature intervals and corresponding display gray levels Relation gray level look-up table. After receiving the indication signal, the timing controller uses the display data corresponding to the temperature interval corresponding to the indication signal and the display gray level correspondence look-up table to obtain the display gray corresponding to the connected display data. And transfer to the source driver.
  • the two temperature intervals are a normal temperature temperature interval and a high temperature temperature interval;
  • the timing control and power management module stores a look-up table of display data and display gray scale correspondence, and a first group of gamma voltages and a second group of gamma voltages corresponding to the normal temperature range and the high temperature range respectively; or,
  • the timing control and power management module stores the first display data and display gray scale correspondence look-up table, the second display data and display gray scale correspondence look-up table, and a group of Gamma voltage; or,
  • the timing control and power management module stores a first group of gamma voltages, a second group of gamma voltages corresponding to the normal temperature range and the high temperature range respectively, and first displays corresponding to the normal temperature range and the high temperature range respectively Data and display gray scale correspondence lookup table, second display data and display gray scale correspondence lookup table.
  • the source driver is electrically connected to the display panel and transmits the data voltage to the display panel.
  • the present invention provides a display panel driving method, which is applied to the above-mentioned display panel driving system, and includes the following steps:
  • Step S1 The temperature sensor senses the temperature of the source driver and generates an indication signal, which is then transmitted to the timing control and power management module;
  • Step S2 The timing control and power management module connects to the display data and outputs a set of gamma voltages and display gray levels corresponding to the display data to the source driver according to the instruction signal transmitted by the temperature sensor;
  • Step S3 The source driver generates and outputs a data voltage according to the received display gray scale and a set of gamma voltages.
  • the display panel driving system of the present invention includes a source driver, a timing control and power management module, and a temperature sensor.
  • the temperature sensor senses the temperature of the source driver and generates an indication signal Then it is transmitted to the timing control and power management module, and the timing control and power management module outputs a set of gamma voltage and the display gray scale corresponding to the display data to the source driver according to the instruction signal transmitted by the temperature sensor.
  • the driver generates and outputs a data voltage according to the received display gray scale and a set of gamma voltages, and can adjust the gamma voltage of the input source driver and/or the display gray scale corresponding to the display data according to the temperature of the source driver Therefore, the operating temperature and driving power consumption of the source driver can be reduced, and the product quality is high.
  • the display panel driving method of the present invention can reduce the operating temperature and driving power consumption of the source driver.
  • FIG. 1 is a schematic structural diagram of a first embodiment of a display panel driving system of the present invention
  • FIG. 2 is a waveform diagram of the data voltage output by the source driver in a preferred embodiment of the display panel driving system of the present invention
  • FIG. 3 is a schematic structural diagram of a second embodiment of the display panel driving system of the present invention.
  • FIG. 4 is a schematic structural diagram of a third embodiment of the display panel driving system of the present invention.
  • FIG. 5 is a flowchart of a method for driving a display panel of the present invention.
  • the display panel driving system of the first embodiment of the present invention includes a source driver 10, a timing control and power management module 20 electrically connected to the source driver 10, and a timing control and power management module 20 electrically connected to the source driver 10. Connected temperature sensor 30.
  • the temperature sensor 30 is used to sense the temperature of the source driver 10 and generate an indication signal, which is then transmitted to the timing control and power management module 20.
  • the indication signal is consistent with a plurality of preset continuous temperature intervals.
  • the temperature of the pole driver 10 corresponds to the temperature range.
  • the timing control and power management module 20 accesses the display data and outputs a set of gamma voltages and display gray levels corresponding to the display data connected to the source driver 10 according to the instruction signal transmitted by the temperature sensor 30.
  • the source driver 10 generates and outputs data voltages according to the received display gray levels and a set of gamma voltages.
  • the amount of change in the absolute value of the difference between the data voltage and the preset common voltage after the display data changes by an arbitrary amount Less than when the temperature of the source driver 10 is located in the lower one of the two preset temperature ranges, after the display data changes by the arbitrary amount, the absolute value of the difference between the data voltage and the preset common voltage The amount of change.
  • the timing control and power management module 20 stores multiple sets of gamma voltages respectively corresponding to multiple preset temperature intervals and a display data and display gray scale correspondence relationship
  • the timing control and power management module 20 transmits a group of gamma voltages corresponding to the temperature interval corresponding to the instruction signal to the source driver 10 after receiving the instruction signal, and uses the display data and display gray scale
  • the corresponding relationship look-up table acquires the display gray scale corresponding to the display data connected to it and transmits it to the source driver 10.
  • the timing control and power management module 20 includes a timing controller 21 and a power management chip 22.
  • the timing controller 21 and the power management chip 22 are electrically connected to the source driver 10.
  • the timing controller 21 accesses display data.
  • the power management chip 22 is electrically connected to the temperature sensor 30 to receive the instruction signal transmitted by the temperature sensor 30, and the power management chip 22 stores multiple sets of gamma voltages respectively corresponding to multiple preset temperature intervals After receiving the instruction signal, the power management chip 22 transmits a group of gamma voltages corresponding to the temperature interval corresponding to the instruction signal to the source driver 10.
  • the timing controller 21 stores a look-up table for the correspondence between display data and display gray levels, and the timing controller 21 uses the display data and the display gray-level correspondence look-up table to obtain and transmit the display gray levels corresponding to the display data it is connected to. To the source driver 10.
  • the number of the plurality of preset temperature intervals may be selected according to actual requirements.
  • the temperature interval may be two, and the two temperature intervals are a normal temperature temperature interval and a high temperature temperature interval.
  • the power management chip 22 of the timing control and power management module 20 stores a first group of gamma voltages and a second group of gamma voltages respectively corresponding to the normal temperature range and the high temperature range.
  • the temperature range may also be three, and the three temperature ranges are respectively a normal temperature range, a medium temperature range and a high temperature range.
  • the timing control and The power management chip 22 of the power management module 20 stores a first group of gamma voltages, a second group of gamma voltages, and a third group of gamma voltages corresponding to the normal temperature range, the middle temperature range, and the high temperature range, respectively.
  • the source driver 10 is electrically connected to the display panel 40 and transmits the data voltage to the display panel 40.
  • the working process of the first embodiment of the display panel driving system of the present invention is as follows:
  • the temperature sensor 30 senses the temperature of the source driver 10 In the normal temperature range
  • an indication signal corresponding to the normal temperature range is generated and transmitted to the power management chip 22.
  • the power management chip 22 receives the indication signal corresponding to the normal temperature range and transmits the first group of gamma voltages to the source driver 10.
  • the timing controller 21 sequentially accesses the first display data, the second display data, and the first display data in the T1, T2, and T3 stages, and looks up the table based on the corresponding relationship between the stored display data and the display gray level Obtain the first display gray scale and the second display gray scale corresponding to the first display data and the second display data, and transmit the first display gray scale and the second display gray scale to the source driver 10 in the T1 stage, T2 stage, and T3 stage, respectively.
  • the source driver 10 generates and outputs the first data voltage to the n-1th row of the display panel 4 according to the first group of gamma voltages and the first display gray scale in the T1 stage Pixels, where n is a positive integer greater than 2, generate and output second data voltages to sub-pixels in the nth row of the display panel 4 according to the first group of gamma voltages and the second display gray scale in the T2 stage, and according to the first A set of gamma voltages and first display gray scales generate and output first data voltages to sub-pixels in the n+1th row of the display panel 4.
  • Both the first data voltage and the second data voltage are greater than the preset common voltage, so
  • the data voltage waveform output by the source driver 10 is shown by the solid line in FIG. 4; when the temperature sensor 30 senses that the temperature of the source driver 10 is in the high temperature range
  • an indication signal corresponding to the high temperature range is generated and transmitted to the power management chip 22.
  • the power management chip 22 After receiving the indication signal corresponding to the high temperature range, the power management chip 22 transmits the second group of gamma voltages to the source driver 10.
  • the timing controller 21 sequentially accesses the first display data, the second display data, and the first display data in the T1, T2, and T3 stages, and obtains the corresponding relationship between the stored display data and the display gray scale according to the lookup table.
  • the first display gray scale and the second display gray scale corresponding to the first display data and the second display data are transmitted to the source driver 10 in the T1 stage, T2 stage, and T3 stage, respectively.
  • the source driver 10 generates and outputs a third data voltage to the sub-pixels in the n-1th row of the display panel 4 according to the second group of gamma voltages and the second display gray level in the T1 stage.
  • the T2 stage generates and outputs the fourth data voltage to the sub-pixels in the nth row of the display panel 4 according to the second set of gamma voltages and the second display gray scale.
  • the third data voltage is generated and output to the sub-pixels in the n+1th row of the display panel 4. Both the third data voltage and the fourth data voltage are greater than the preset common voltage, so that the temperature of the source driver 10 is at a high temperature During the interval, the data voltage waveform output by the source driver 10 is shown by the dashed line in FIG. 4.
  • the first data voltage and the second group of gamma voltages can be adjusted easily
  • the difference between the common voltage, the difference between the second data voltage and the common voltage is greater than the difference between the third data voltage and the common voltage, and the difference between the fourth data voltage and the common voltage, and That is, when the temperature of the source driver 10 is in the high temperature range, the display data changes by an arbitrary value, and the amount of change in the absolute value of the difference between the data voltage and the common voltage is smaller than when the temperature of the source driver 10 is in the normal temperature range.
  • the amount of change in the absolute value of the difference between the data voltage and the common voltage after an arbitrary value thereby reducing the change range of the data voltage output by the source driver 10 when the temperature of the source driver 10 is high, and can reduce the temperature and Power consumption effectively improves the quality of the product.
  • the difference between the second embodiment of the present invention and the above-mentioned first embodiment is that the timing control and power management module 20 stores a plurality of display data and displays corresponding to a plurality of preset temperature intervals. Gray scale look-up table and a set of gamma voltages.
  • the timing control and power management module 20 uses the display data corresponding to the temperature interval corresponding to the instruction signal and displays the gray scale correspondence after receiving the instruction signal
  • the look-up table acquires the display gray scale corresponding to the display data it is connected to, and transmits the display gray scale and a set of stored gamma voltages to the source driver 10.
  • the timing controller 21 is electrically connected to the temperature sensor 30 to receive the indication signal transmitted by the temperature sensor 30, and the timing controller 21 A plurality of display data corresponding to a plurality of preset temperature intervals and a gray scale look-up table corresponding to the display gray scale are stored.
  • the timing controller 21 uses the temperature interval corresponding to the indicating signal after receiving the indicating signal.
  • the corresponding display data and display gray scale corresponding relation look-up table obtains the display gray scale corresponding to the display data connected to it and transmits it to the source driver 10.
  • the power management module 22 stores a set of gamma voltages, and the power management module 22 transmits the stored set of gamma voltages to the source driver 10.
  • the timing control and power management module stores the first display data and display gray scale correspondence look-up table, and the second display data and display gray scale correspondence look-up table respectively corresponding to the normal temperature range and the high temperature temperature range.
  • the timing control and power management module stores the first display data and the display gray scale correspondence look-up table, the second display data and the display gray scale correspondence look-up table, and the first display data corresponding to the normal temperature interval, the middle temperature temperature interval, and the high temperature temperature interval. 3.
  • the working process of the second embodiment of the display panel driving system of the present invention is as follows:
  • the temperature sensor 30 senses the temperature of the source driver 10 When it is located in the normal temperature range, an indication signal corresponding to the normal temperature range is generated and transmitted to the timing controller 21.
  • the timing controller 21 sequentially accesses the first display data, the second display data, and the second display data during the T1, T2, and T3 stages.
  • the first display data uses the first display data and the display gray scale correspondence lookup table to obtain the first display gray scales corresponding to the first display data and the second display data after receiving the indication signal corresponding to the normal temperature range
  • the second display gray scale, and the first display gray scale, the second display gray scale, and the first display gray scale are respectively transmitted to the source driver 10 in the T1, T2, and T3 stages, and the power management chip 22 is always
  • the source driver 10 transmits a set of stored gamma voltages to the source driver 10.
  • the source driver 10 generates and outputs the first data voltage to the n-th in the display panel 4 according to the set of gamma voltages and the first display gray scale in the T1 stage.
  • One row of sub-pixels generates and outputs a second data voltage to the n-th row of sub-pixels in the display panel 4 according to the group of gamma voltages and the second display gray scale in the T2 stage, and according to the group of gamma voltages and the first A display gray scale generates and outputs a first data voltage to the sub-pixels in the n+1th row of the display panel 4.
  • Both the first data voltage and the second data voltage are greater than the preset common voltage, so that the temperature of the source driver 10 is In the normal temperature range, the data voltage waveform output by the source driver 10 is shown by the solid line in FIG.
  • the timing controller 21 sequentially accesses the first display data, the second display data and the first display data in the T1 stage, T2 stage, and T3 stage.
  • the second display data and the display gray level correspondence look-up table After the indicator signal corresponding to the temperature interval, use the second display data and the display gray level correspondence look-up table to obtain the third display gray level and the fourth display gray level respectively corresponding to the first display data and the second display data, and the third display gray level and the fourth display gray level are respectively displayed at T1 Phases, T2 phases, and T3 phases transmit the third display gray scale, the fourth display gray scale, and the third display gray scale to the source driver 10, and the power management chip 22 always transmits its stored set to the source driver 10.
  • the source driver 10 generates and outputs a third data voltage to the sub-pixels in the n-1th row of the display panel 4 according to the group of gamma voltages and the third display gray scale in the T1 stage, and according to the group in the T2 stage
  • the gamma voltage and the fourth display gray scale generate and output the fourth data voltage to the sub-pixels in the nth row of the display panel 4, and the third data voltage is generated and output according to the group of gamma voltages and the third display gray scale in the T3 stage
  • the third data voltage and the fourth data voltage are both greater than the preset common voltage, so when the temperature of the source driver 10 is in the high temperature range, the source driver 1 0
  • the output data voltage waveform is shown by the dotted line in Figure 4; by adjusting the first display data and display gray scale correspondence look-up table, the second display data and display gray scale correspondence look-up table shows the data and display gray scale
  • the specific value can easily
  • the amount of change between the difference between the data voltage and the common voltage that is, when the temperature of the source driver 10 is in the high temperature range, the displayed data changes by an arbitrary value.
  • the amount of change between the absolute value of the difference between the data voltage and the common voltage is smaller than that at the source.
  • the change in the absolute value of the difference between the data voltage and the common voltage after the data changes by the arbitrary value is displayed, thereby reducing the data voltage output by the source driver 10 when the temperature of the source driver 10 is high
  • the range of change can reduce the temperature and power consumption of the source driver 10, and effectively improve the quality of the product.
  • the difference between the third embodiment of the present invention and the above-mentioned first embodiment is that the timing control and power management module 20 stores multiple sets of gamma voltages and voltages corresponding to multiple preset temperature intervals.
  • a plurality of display data corresponding to a plurality of preset temperature intervals and a gray scale look-up table corresponding to the display gray scale the timing control and power management module 20 uses the temperature interval corresponding to the indicating signal after receiving the indicating signal
  • Corresponding display data and display gray scale correspondence relation look-up table obtains the display gray scale corresponding to the display data connected to it, and transmits a set of gamma voltage corresponding to the temperature interval corresponding to the indicator signal and the display gray scale To the source driver 10.
  • the power management chip 22 is electrically connected to the temperature sensor 30 to receive the indication signal transmitted by the temperature sensor 30, and the power management chip 22 A plurality of groups of gamma voltages corresponding to a plurality of preset temperature intervals are stored. The power management chip 22 transmits a group of gamma voltages corresponding to the temperature interval corresponding to the indication signal to Source driver 10.
  • the timing controller 21 is electrically connected to the temperature sensor 30 to receive the instruction signal transmitted by the temperature sensor 30, and the timing controller 21 stores a plurality of display data corresponding to a plurality of preset temperature intervals, and Display gray level correspondence relationship gray level look-up table, the timing controller 21 uses the display data corresponding to the temperature interval corresponding to the indicator signal and the display gray level correspondence look-up table to obtain the display connected to it after receiving the instruction signal
  • the display gray scale corresponding to the data is transmitted to the source driver 10.
  • the timing control and power management The power management chip 22 of the module 20 stores a first group of gamma voltages and a second group of gamma voltages respectively corresponding to the normal temperature range and the high temperature range
  • the timing controller 21 of the timing control and power management module 20 stores The first display data and display gray scale correspondence look-up table, and the second display data and display gray scale correspondence look-up table respectively corresponding to the normal temperature temperature interval and the high temperature temperature interval.
  • the timing control and power management module The power management chip 22 of 20 stores a first group of gamma voltages, a second group of gamma voltages, and a third group of gamma voltages corresponding to the normal temperature range, the middle temperature range, and the high temperature range respectively.
  • the timing control and power supply The timing controller 21 of the management module 20 stores the first display data and the display gray scale correspondence look-up table, the second display data and the display gray scale correspondence look-up table respectively corresponding to the normal temperature range, the medium temperature range, and the high temperature range. , The third display data and display gray scale corresponding relationship lookup table.
  • the working process of the third embodiment of the display panel driving system of the present invention is as follows: when the temperature sensor 30 senses the temperature of the source driver 10 When it is located in the normal temperature range, it generates an indication signal corresponding to the normal temperature range and transmits it to the timing controller 21 and the power management chip 22.
  • the timing controller 21 sequentially accesses the first display data during the T1, T2, and T3 stages.
  • the second display data and the first display data after receiving the indication signal corresponding to the normal temperature range, use the first display data and the display gray scale correspondence look-up table to obtain the data corresponding to the first display data and the second display data respectively.
  • the first display gray scale and the second display gray scale, and the first display gray scale, the second display gray scale, and the first display gray scale are transmitted to the source driver 10 in the T1, T2, and T3 stages, respectively, and
  • the power management chip 22 transmits the first group of gamma voltages to the source driver 10 after receiving the indication signal corresponding to the normal temperature range.
  • the source driver 10 generates the first group of gamma voltages and the first display gray scale in the T1 stage And output the first data voltage to the sub-pixels in the n-1th row of the display panel 4, and generate and output the second data voltage to the first group of gamma voltages and the second display gray scale in the T2 stage.
  • the n rows of sub-pixels generate and output the first data voltage to the n+1th row of sub-pixels in the display panel 4 according to the first group of gamma voltages and the first display gray scale in the T3 stage, the first data voltage and the second data
  • the voltages are greater than the preset common voltage, so when the temperature of the source driver 10 is in the normal temperature range, the data voltage waveform output by the source driver 10 is shown by the solid line in FIG. 4; when the temperature sensor 30 senses When the temperature of the source driver 10 is in the high temperature range, it generates an indication signal corresponding to the high temperature range and transmits it to the timing controller 21 and the power management chip 22.
  • the timing controller 21 is connected in the T1 stage, T2 stage, and T3 stage.
  • the third display gray scale and the fourth display gray scale corresponding to the second display data, and the third display gray scale, the fourth display gray scale, and the third display gray scale are transmitted to the source in the T1, T2, and T3 stages respectively
  • the power management chip 22 transmits the second set of gamma voltages to the source driver 10.
  • the source driver 10 generates and outputs the third data voltage according to the second set of gamma voltages and the third display gray scale in the T1 stage
  • a third data voltage is generated and output to the sub-pixels in the n+1th row of the display panel 4 according to the second group of gamma voltages and the third display gray scale.
  • Both the third data voltage and the fourth data voltage are greater than the preset
  • the waveform of the data voltage output by the source driver 10 is shown by the dotted line in FIG. 4; by adjusting the first display data and the display gray scale correspondence relationship, the look-up table, 2.
  • the specific values of the display data and the specific values of the display gray levels in the look-up table corresponding to the display data and display gray levels, as well as the specific values of the first group of gamma voltages and the second group of gamma voltages, can easily make the first data voltage and
  • the difference between the common voltage, the difference between the second data voltage and the common voltage is greater than the difference between the third data voltage and the common voltage, and the difference between the fourth data voltage and the common voltage, and That is, when the temperature of the source driver 10 is in the high temperature range, the display data changes by an arbitrary value, and the amount of change in the absolute value of the difference between the data voltage and the common voltage is smaller than when the temperature of the source driver 10 is in the normal temperature range.
  • the amount of change in the absolute value of the difference between the data voltage and the common voltage after an arbitrary value thereby reducing the change range of the data voltage output by the source driver 10 when the temperature of the source driver 10 is high, and can reduce the temperature and Power consumption effectively improves the quality of the product.
  • the present invention also provides a display panel driving method applied to the above-mentioned display panel driving system.
  • the structure of the display panel driving system and the display panel are not described repeatedly here.
  • the driving method includes the following steps:
  • Step S1 The temperature sensor 30 senses the temperature of the source driver 10 and generates an indication signal, which is then transmitted to the timing control and power management module 20.
  • Step S2 The timing control and power management module 20 accesses the display data and outputs a set of gamma voltages and the display gray scale corresponding to the display data to the source driver 10 according to the instruction signal transmitted by the temperature sensor 30 .
  • Step S3 The source driver 10 generates and outputs a data voltage according to the received display gray scale and a set of gamma voltages.
  • the display panel driving method of the present invention is applied to the above-mentioned display panel driving system.
  • the temperature sensor 30 senses the temperature of the source driver 10 and generates an indication signal, which is then transmitted to the timing control and power supply
  • the management module 20 the timing control and power management module 20 outputs a set of gamma voltage and the display gray scale corresponding to the display data to the source driver 10 according to the instruction signal transmitted by the temperature sensor 30, and the source driver 10 according to
  • the received display gray scale and a set of gamma voltages generate and output data voltages, and the gamma voltage input to the source driver 10 and/or the display gray scale corresponding to the display data can be adjusted according to the temperature of the source driver 10 Therefore, the operating temperature and driving power consumption of the source driver 10 can be reduced, and the product quality is high.
  • the display panel driving system of the present invention includes a source driver, a timing control and power management module, and a temperature sensor.
  • the temperature sensor senses the temperature of the source driver and generates an indication signal.
  • the timing control and power management module Transmitted to the timing control and power management module, the timing control and power management module outputs a set of gamma voltages and the display gray scale corresponding to the display data to the source driver according to the instruction signal transmitted by the temperature sensor, the source driver According to the received display gray scale and a set of gamma voltages, the data voltage is generated and output, and the gamma voltage input to the source driver and/or the display gray scale corresponding to the display data can be adjusted according to the temperature of the source driver. Thereby, the operating temperature and driving power consumption of the source driver can be reduced, and the product quality is high.
  • the display panel driving method of the present invention can reduce the operating temperature and driving power consumption of the source driver.

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Abstract

本发明提供一种显示面板驱动系统及显示面板驱动方法。本发明的显示面板驱动系统包括源极驱动器、时序控制及电源管理模块、温度感测器，工作时，温度感测器对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，时序控制及电源管理模块依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶，源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。本发明能够依据源极驱动器的温度对输入源极驱动器的伽马电压和/或与显示数据对应的显示灰阶进行调整，从而能够降低源极驱动器的工作温度及驱动功耗，产品品质较高。

Description

显示面板驱动系统及显示面板驱动方法 技术领域
本发明涉及显示技术领域，尤其涉及一种显示面板驱动系统及显示面板驱动方法。
 背景技术
在显示技术领域，液晶显示装置（Liquid Crystal Display，LCD）、有机发光二极管（Organic Light-Emitting Diode，OLED）显示器等平板显示装置已经逐步取代阴极射线管（Cathode Ray Tube，CRT）显示装置。液晶显示装置具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括液晶显示面板及背光模组（backlight module）。通常液晶显示面板由彩膜（Color Filter，CF）基板、薄膜晶体管（Thin Film Transistor，TFT）阵列基板、夹于彩膜基板与薄膜晶体管阵列基板之间的液晶（Liquid Crystal，LC）及密封胶框（Sealant）组成。液晶显示面板的工作原理是在两片平行的玻璃基板当中放置液晶分子，两片玻璃基板中间有许多垂直和水平的细小电线，通过通电与否来控制液晶分子改变方向，将背光模组的光线折射出来产生画面。
OLED通常包括：基板、设于基板上的阳极、设于阳极上的空穴注入层（HIL）、设于空穴注入层上的空穴传输层（HTL）、设于空穴传输层上的发光层、设于发光层上的电子传输层（ETL）、设于电子传输层上的电子注入层（EIL）及设于电子注入层上的阴极。OLED显示器件的发光原理为半导体材料和有机发光材料在电场驱动下，通过载流子注入和复合导致发光。
现有的显示面板在显示某些画面时（例如任意相邻两行像素分别呈亮态及暗态）时，用于向显示面板传输数据电压的源极驱动器输出的数据电压切换速率变快，且数据电压与预设的公共电压差值的绝对值的改变量较大，容易导致源极驱动器的温度上升及功耗增加，降低了产品的品质。
 技术问题
本发明的目的在于提供一种显示面板驱动系统，能够降低源极驱动器的工作温度及驱动功耗，产品品质较高。
本发明的另一目的在于提供一种显示面板驱动方法，能够降低源极驱动器的工作温度及驱动功耗。
 技术解决方案
为实现上述目的，本发明首先提供一种显示面板驱动系统，包括源极驱动器、与源极驱动器电性连接的时序控制及电源管理模块以及与时序控制及电源管理模块电性连接的温度感测器；
所述温度感测器用于对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，所述指示信号与预设的多个连续的温度区间中源极驱动器的温度所在的温度区间对应；
所述时序控制及电源管理模块接入显示数据并依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶；
所述源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
当所述源极驱动器的温度位于任意两个预设的温度区间中的较高的一个时，显示数据变化一任意量后，数据电压与预设的公共电压差值的绝对值的改变量小于当所述源极驱动器的温度位于该任意两个预设的温度区间中的较低的一个时，显示数据变化该任意量后，数据电压与预设的公共电压差值的绝对值的改变量。
所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及一显示数据及显示灰阶对应关系查找表，所述时序控制及电源管理模块在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器，并利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；或者，
所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表及一组伽马电压，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将该显示灰阶及其存储的一组伽马电压传输至源极驱动器；或者，
所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将与指示信号所对应的温度区间相对应的一组伽马电压及该显示灰阶传输至源极驱动器。
所述时序控制及电源管理模块包括时序控制器及电源管理芯片；所述时序控制器及电源管理芯片均电性连接所述源极驱动器；所述时序控制器接入显示数据。
所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
所述时序控制器存储有一显示数据与显示灰阶对应关系查找表，所述时序控制器利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；
所述电源管理模块存储有一组伽马电压，所述电源管理模块将其存储的一组伽马电压传输至源极驱动器。
所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
所述温度区间为两个，该两个温度区间分别为常温温度区间及高温温度区间；
所述时序控制及电源管理模块存储有一显示数据及显示灰阶对应关系查找表、以及分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压；或者，
所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表、以及一组伽马电压；或者，
所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压、以及分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表。
所述源极驱动器电性连接显示面板并将数据电压传输至所述显示面板。
本发明提供一种显示面板驱动方法，应用于上述的显示面板驱动系统，包括如下步骤：
步骤S1、所述温度感测器对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块；
步骤S2、所述时序控制及电源管理模块接入显示数据并依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶；
步骤S3、所述源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
 有益效果
本发明的有益效果：本发明的显示面板驱动系统包括源极驱动器、时序控制及电源管理模块、温度感测器，工作时，温度感测器对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，时序控制及电源管理模块依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶，源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出，能够依据源极驱动器的温度对输入源极驱动器的伽马电压和/或与显示数据对应的显示灰阶进行调整，从而能够降低源极驱动器的工作温度及驱动功耗，产品品质较高。本发明的显示面板驱动方法能够降低源极驱动器的工作温度及驱动功耗。
 附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为本发明的显示面板驱动系统的第一实施例的结构示意图；
图2为本发明的显示面板驱动系统的一优选实施例中源极驱动器输出的数据电压的波形图；
图3为本发明的显示面板驱动系统的第二实施例的结构示意图；
图4为本发明的显示面板驱动系统的第三实施例的结构示意图；
图5为本发明的显示面板驱动方法的流程图。
 本发明的实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图1，本发明的第一实施例的显示面板驱动系统包括源极驱动器10、与源极驱动器10电性连接的时序控制及电源管理模块20以及与时序控制及电源管理模块20电性连接的温度感测器30。
所述温度感测器30用于对源极驱动器10的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块20，所述指示信号与预设的多个连续的温度区间中源极驱动器10的温度所在的温度区间对应。
所述时序控制及电源管理模块20接入显示数据并依据温度感测器30传输的指示信号向源极驱动器10输出一组伽马电压及与其接入的显示数据对应的显示灰阶。
所述源极驱动器10依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
当所述源极驱动器10的温度位于任意两个预设的温度区间中的较高的一个时，显示数据变化一任意量后，数据电压与预设的公共电压差值的绝对值的改变量小于当所述源极驱动器10的温度位于该任意两个预设的温度区间中的较低的一个时，显示数据变化该任意量后，数据电压与预设的公共电压差值的绝对值的改变量。
具体地，在本发明的第一实施例中，所述时序控制及电源管理模块20存储有分别与多个预设的温度区间对应的多组伽马电压及一显示数据及显示灰阶对应关系查找表，所述时序控制及电源管理模块20在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器10，并利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器10。
进一步地，请参阅图1，在本发明的第一实施例中，所述时序控制及电源管理模块20包括时序控制器21及电源管理芯片22。所述时序控制器21及电源管理芯片22均电性连接所述源极驱动器10。所述时序控制器21接入显示数据。所述电源管理芯片22电性连接温度感测器30接收由温度感测器30传输的指示信号，所述电源管理芯片22存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片22在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器10。所述时序控制器21存储有一显示数据与显示灰阶对应关系查找表，所述时序控制器21利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器10。
具体地，所述多个预设的温度区间的数量可以根据实际需求进行选取，例如所述温度区间可以为两个，该两个温度区间分别为常温温度区间及高温温度区间，相应地，在本发明的第一实施例中，所述时序控制及电源管理模块20的电源管理芯片22存储有分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压。又例如，所述温度区间也可以为三个，该三个温度区间分别为常温温度区间、中温温度区间及高温温度区间，相应地，在本发明的第一实施例中，所述时序控制及电源管理模块20的电源管理芯片22存储有分别与常温温度区间、中温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压、第三组伽马电压。
具体地，请参阅图1，所述源极驱动器10电性连接显示面板40并将数据电压传输至所述显示面板40。
请结合图2，以预设的温度区间为两个为例，本发明的显示面板驱动系统的第一实施例的工作过程如下：当温度感测器30感测到源极驱动器10的温度位于常温温度区间时，产生与常温温度区间对应的指示信号并传输至电源管理芯片22中，电源管理芯片22接收到与常温温度区间对应的指示信号后将第一组伽马电压传输至源极驱动器10，同时，时序控制器21在T1阶段、T2阶段及T3阶段依次接入第一显示数据、第二显示数据、第一显示数据，并依据其存储的显示数据与显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第一显示灰阶及第二显示灰阶，并分别在T1阶段、T2阶段及T3阶段向源极驱动器10传输第一显示灰阶、第二显示灰阶及第一显示灰阶，源极驱动器10在T1阶段依据第一组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n-1行子像素，n为大于2的正整数，在T2阶段依据第一组伽马电压及第二显示灰阶产生并输出第二数据电压至显示面板4中的第n行子像素，在T3阶段依据第一组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n+1行子像素，第一数据电压及第二数据电压均大于预设的公共电压，从而源极驱动器10的温度位于常温温度区间时，源极驱动器10输出的数据电压波形为图4中的实线所示；当温度感测器30感测到源极驱动器10的温度位于高温温度区间时，产生与高温温度区间对应的指示信号并传输至电源管理芯片22中，电源管理芯片22接收到与高温温度区间对应的指示信号后将第二组伽马电压传输至源极驱动器10，同时，时序控制器21在T1阶段、T2阶段及T3阶段依次接入第一显示数据、第二显示数据、第一显示数据，并依据其存储的显示数据与显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第一显示灰阶及第二显示灰阶，并分别在T1阶段、T2阶段及T3阶段向源极驱动器10传输第一显示灰阶、第二显示灰阶及第一显示灰阶，源极驱动器10在T1阶段依据第二组伽马电压及第二显示灰阶产生并输出第三数据电压至显示面板4中的第n-1行子像素，在T2阶段依据第二组伽马电压及第二显示灰阶产生并输出第四数据电压至显示面板4中的第n行子像素，在T3阶段依据第二组伽马电压及第一显示灰阶产生并输出第三数据电压至显示面板4中的第n+1行子像素，第三数据电压及第四数据电压均大于预设的公共电压，从而源极驱动器10的温度位于高温温度区间时，源极驱动器10输出的数据电压波形为图4中的虚线所示，通过调整第一组伽马电压及第二组伽马电压的具体数值，可以很容易地使得第一数据电压与公共电压的差值、第二数据电压与公共电压的差值之间的改变量大于第三数据电压与公共电压的差值、第四数据电压与公共电压的差值之间的改变量，也即在源极驱动器10的温度位于高温温度区间时显示数据变化一任意值后数据电压与公共电压差值的绝对值的改变量小于在源极驱动器10的温度位于常温温度区间时显示数据变化该任意值后数据电压与公共电压差值的绝对值的改变量，从而在源极驱动器10的温度较高时减少源极驱动器10输出的数据电压的变化幅度，能够降低源极驱动器10的温度及功耗，有效地提升了产品的品质。
请参阅图3，本发明的第二实施例与上述第一实施例的区别在于，所述时序控制及电源管理模块20存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表及一组伽马电压，所述时序控制及电源管理模块20在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将该显示灰阶及其存储的一组伽马电压传输至源极驱动器10。
进一步地，请参阅图3，在本发明的第二实施例中，所述时序控制器21电性连接温度感测器30接收由温度感测器30传输的指示信号，所述时序控制器21存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器21在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器10。所述电源管理模块22存储有一组伽马电压，所述电源管理模块22将其存储的一组伽马电压传输至源极驱动器10。
更进一步地，当所述温度区间为两个，该两个温度区间分别为常温温度区间及高温温度区间时，相应地，在本发明的第二实施例中，所述时序控制及电源管理模块20的时序控制器21存储有分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表。当所述温度区间为三个，该三个温度区间分别为常温温度区间、中温温度区间及高温温度区间时，相应地，在本发明的第二实施例中，所述时序控制及电源管理模块20的时序控制器21存储有分别与常温温度区间、中温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表、第三显示数据及显示灰阶对应关系查找表。
同样请结合图2，以预设的温度区间为两个为例，本发明的显示面板驱动系统的第二实施例的工作过程如下：当温度感测器30感测到源极驱动器10的温度位于常温温度区间时，产生与常温温度区间对应的指示信号并传输至时序控制器21中，时序控制器21在T1阶段、T2阶段、T3阶段依次接入第一显示数据、第二显示数据及第一显示数据，在其接收到与常温温度区间对应的指示信号后利用第一显示数据及显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第一显示灰阶及第二显示灰阶，并分别在T1阶段、T2阶段、T3阶段将第一显示灰阶、第二显示灰阶、第一显示灰阶传输至源极驱动器10中，而电源管理芯片22始终向源极驱动器10传输其存储的一组伽马电压，源极驱动器10在T1阶段依据该组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n-1行子像素，在T2阶段依据该组伽马电压及第二显示灰阶产生并输出第二数据电压至显示面板4中的第n行子像素，在T3阶段依据该组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n+1行子像素，第一数据电压及第二数据电压均大于预设的公共电压，从而源极驱动器10的温度位于常温温度区间时，源极驱动器10输出的数据电压波形为图4中的实线所示；当温度感测器30感测到源极驱动器10的温度位于高温温度区间时，产生与高温温度区间对应的指示信号并传输至时序控制器21中，时序控制器21在T1阶段、T2阶段、T3阶段依次接入第一显示数据、第二显示数据及第一显示数据，在其接收到与高温温度区间对应的指示信号后利用第二显示数据及显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第三显示灰阶及第四显示灰阶，并分别在T1阶段、T2阶段、T3阶段将第三显示灰阶、第四显示灰阶、第三显示灰阶传输至源极驱动器10中，而电源管理芯片22始终向源极驱动器10传输其存储的一组伽马电压，源极驱动器10在T1阶段依据该组伽马电压及第三显示灰阶产生并输出第三数据电压至显示面板4中的第n-1行子像素，在T2阶段依据该组伽马电压及第四显示灰阶产生并输出第四数据电压至显示面板4中的第n行子像素，在T3阶段依据该组伽马电压及第三显示灰阶产生并输出第三数据电压至显示面板4中的第n+1行子像素，第三数据电压及第四数据电压均大于预设的公共电压，从而源极驱动器10的温度位于高温温度区间时，源极驱动器10输出的数据电压波形为图4中的虚线所示；通过调整第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表中显示数据及显示灰阶的具体数值，可以很容易地使得第一数据电压与公共电压的差值、第二数据电压与公共电压的差值之间的改变量大于第三数据电压与公共电压的差值、第四数据电压与公共电压的差值之间的改变量，也即在源极驱动器10的温度位于高温温度区间时显示数据变化一任意值后数据电压与公共电压差值的绝对值的改变量小于在源极驱动器10的温度位于常温温度区间时显示数据变化该任意值后数据电压与公共电压差值的绝对值的改变量，从而在源极驱动器10的温度较高时减少源极驱动器10输出的数据电压的变化幅度，能够降低源极驱动器10的温度及功耗，有效地提升了产品的品质。
请参阅图4，本发明的第三实施例与上述第一实施例的区别在于，所述时序控制及电源管理模块20存储有分别与多个预设的温度区间对应的多组伽马电压及分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制及电源管理模块20在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将与指示信号所对应的温度区间相对应的一组伽马电压及该显示灰阶传输至源极驱动器10。
进一步地，请参阅图4，在本发明的第三实施例中，所述电源管理芯片22电性连接温度感测器30接收由温度感测器30传输的指示信号，所述电源管理芯片22存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片22在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器10。所述时序控制器21电性连接温度感测器30接收由温度感测器30传输的指示信号，所述时序控制器21存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器21在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器10。
更进一步地，当所述温度区间可以为两个，该两个温度区间分别为常温温度区间及高温温度区间时，相应地，在本发明的第三实施例中，所述时序控制及电源管理模块20的电源管理芯片22存储有分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压，所述时序控制及电源管理模块20的时序控制器21存储有分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表。当所述温度区间为三个，该三个温度区间分别为常温温度区间、中温温度区间及高温温度区间时，相应地，在本发明的第三实施例中，所述时序控制及电源管理模块20的电源管理芯片22存储有分别与常温温度区间、中温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压、第三组伽马电压，所述时序控制及电源管理模块20的时序控制器21存储有分别与常温温度区间、中温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表、第三显示数据及显示灰阶对应关系查找表。
同样请结合图2，以预设的温度区间为两个为例，本发明的显示面板驱动系统的第三实施例的工作过程如下：当温度感测器30感测到源极驱动器10的温度位于常温温度区间时，产生与常温温度区间对应的指示信号并传输至时序控制器21及电源管理芯片22中，时序控制器21在T1阶段、T2阶段、T3阶段依次接入第一显示数据、第二显示数据及第一显示数据，在其接收到与常温温度区间对应的指示信号后利用第一显示数据及显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第一显示灰阶及第二显示灰阶，并分别在T1阶段、T2阶段、T3阶段将第一显示灰阶、第二显示灰阶、第一显示灰阶传输至源极驱动器10中，而电源管理芯片22在接收到与常温温度区间对应的指示信号后向源极驱动器10传输第一组伽马电压，源极驱动器10在T1阶段依据第一组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n-1行子像素，在T2阶段依据第一组伽马电压及第二显示灰阶产生并输出第二数据电压至显示面板4中的第n行子像素，在T3阶段依据第一组伽马电压及第一显示灰阶产生并输出第一数据电压至显示面板4中的第n+1行子像素，第一数据电压及第二数据电压均大于预设的公共电压，从而源极驱动器10的温度位于常温温度区间时，源极驱动器10输出的数据电压波形为图4中的实线所示；当温度感测器30感测到源极驱动器10的温度位于高温温度区间时，产生与高温温度区间对应的指示信号并传输至时序控制器21及电源管理芯片22中，时序控制器21在T1阶段、T2阶段、T3阶段依次接入第一显示数据、第二显示数据及第一显示数据，在其接收到与高温温度区间对应的指示信号后利用第二显示数据及显示灰阶对应关系查找表获取分别与第一显示数据、第二显示数据对应的第三显示灰阶及第四显示灰阶，并分别在T1阶段、T2阶段、T3阶段将第三显示灰阶、第四显示灰阶、第三显示灰阶传输至源极驱动器10中，而电源管理芯片22向源极驱动器10传输第二组伽马电压，源极驱动器10在T1阶段依据第二组伽马电压及第三显示灰阶产生并输出第三数据电压至显示面板4中的第n-1行子像素，在T2阶段依据第二组伽马电压及第四显示灰阶产生并输出第四数据电压至显示面板4中的第n行子像素，在T3阶段依据第二组伽马电压及第三显示灰阶产生并输出第三数据电压至显示面板4中的第n+1行子像素，第三数据电压及第四数据电压均大于预设的公共电压，从而源极驱动器10的温度位于高温温度区间时，源极驱动器10输出的数据电压波形为图4中的虚线所示；通过调整第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表中显示数据及显示灰阶的具体数值，以及第一组伽马电压及第二组伽马电压的具体数值，可以很容易地使得第一数据电压与公共电压的差值、第二数据电压与公共电压的差值之间的改变量大于第三数据电压与公共电压的差值、第四数据电压与公共电压的差值之间的改变量，也即在源极驱动器10的温度位于高温温度区间时显示数据变化一任意值后数据电压与公共电压差值的绝对值的改变量小于在源极驱动器10的温度位于常温温度区间时显示数据变化该任意值后数据电压与公共电压差值的绝对值的改变量，从而在源极驱动器10的温度较高时减少源极驱动器10输出的数据电压的变化幅度，能够降低源极驱动器10的温度及功耗，有效地提升了产品的品质。
请参阅图5，基于同一发明构思，本发明还提供一种显示面板驱动方法，应用于上述的显示面板驱动系统，在此不再对显示面板驱动系统的结构进行重复性描述、该显示面板的驱动方法包括如下步骤：
步骤S1、所述温度感测器30对源极驱动器10的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块20。
步骤S2、所述时序控制及电源管理模块20接入显示数据并依据温度感测器30传输的指示信号向源极驱动器10输出一组伽马电压及与其接入的显示数据对应的显示灰阶。
步骤S3、所述源极驱动器10依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
需要说明的是，本发明的显示面板驱动方法应用于上述的显示面板驱动系统，工作时，温度感测器30对源极驱动器10的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块20，时序控制及电源管理模块20依据温度感测器30传输的指示信号向源极驱动器10输出一组伽马电压及与其接入的显示数据对应的显示灰阶，源极驱动器10依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出，能够依据源极驱动器10的温度对输入源极驱动器10的伽马电压和/或与显示数据对应的显示灰阶进行调整，从而能够降低源极驱动器10的工作温度及驱动功耗，产品品质较高。
综上所述，本发明的显示面板驱动系统包括源极驱动器、时序控制及电源管理模块、温度感测器，工作时，温度感测器对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，时序控制及电源管理模块依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶，源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出，能够依据源极驱动器的温度对输入源极驱动器的伽马电压和/或与显示数据对应的显示灰阶进行调整，从而能够降低源极驱动器的工作温度及驱动功耗，产品品质较高。本发明的显示面板驱动方法能够降低源极驱动器的工作温度及驱动功耗。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (18)

  1. 一种显示面板驱动系统，包括源极驱动器、与源极驱动器电性连接的时序控制及电源管理模块以及与时序控制及电源管理模块电性连接的温度感测器；
    所述温度感测器用于对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，所述指示信号与预设的多个连续的温度区间中源极驱动器的温度所在的温度区间对应；
    所述时序控制及电源管理模块接入显示数据并依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶；
    所述源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
  2. 如权利要求1所述的显示面板驱动系统，其中，当所述源极驱动器的温度位于任意两个预设的温度区间中的较高的一个时，显示数据变化一任意量后，数据电压与预设的公共电压差值的绝对值的改变量小于当所述源极驱动器的温度位于该任意两个预设的温度区间中的较低的一个时，显示数据变化该任意量后，数据电压与预设的公共电压差值的绝对值的改变量。
  3. 如权利要求1所述的显示面板驱动系统，其中，所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及一显示数据及显示灰阶对应关系查找表，所述时序控制及电源管理模块在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器，并利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；或者，
    所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表及一组伽马电压，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将该显示灰阶及其存储的一组伽马电压传输至源极驱动器；或者，
    所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将与指示信号所对应的温度区间相对应的一组伽马电压及该显示灰阶传输至源极驱动器。
  4. 如权利要求3所述的显示面板驱动系统，其中，所述时序控制及电源管理模块包括时序控制器及电源管理芯片；所述时序控制器及电源管理芯片均电性连接所述源极驱动器；所述时序控制器接入显示数据。
  5. 如权利要求4所述的显示面板驱动系统，其中，所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
    所述时序控制器存储有一显示数据与显示灰阶对应关系查找表，所述时序控制器利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
  6. 如权利要求4所述的显示面板驱动系统，其中，所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；
    所述电源管理模块存储有一组伽马电压，所述电源管理模块将其存储的一组伽马电压传输至源极驱动器。
  7. 如权利要求4所述的显示面板驱动系统，其中，所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
    所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
  8. 如权利要求1所述的显示面板驱动系统，其中，所述温度区间为两个，该两个温度区间分别为常温温度区间及高温温度区间；
    所述时序控制及电源管理模块存储有一显示数据及显示灰阶对应关系查找表、以及分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压；或者，
    所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表、以及一组伽马电压；或者，
    所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压、以及分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表。
  9. 如权利要求1所述的显示面板驱动系统，其中，所述源极驱动器电性连接显示面板并将数据电压传输至所述显示面板。
  10. 一种显示面板驱动方法，应用于显示面板驱动系统，所述显示面板驱动系统包括源极驱动器、与源极驱动器电性连接的时序控制及电源管理模块以及与时序控制及电源管理模块电性连接的温度感测器；
    所述温度感测器用于对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块，所述指示信号与预设的多个连续的温度区间中源极驱动器的温度所在的温度区间对应；
    所述时序控制及电源管理模块接入显示数据并依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶；
    所述源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出；所述显示面板驱动方法包括如下步骤：
    步骤S1、所述温度感测器对源极驱动器的温度进行感测并产生指示信号而后传输至时序控制及电源管理模块；
    步骤S2、所述时序控制及电源管理模块接入显示数据并依据温度感测器传输的指示信号向源极驱动器输出一组伽马电压及与其接入的显示数据对应的显示灰阶；
    步骤S3、所述源极驱动器依据其接收到的显示灰阶及一组伽马电压产生数据电压并输出。
  11. 如权利要求10所述的显示面板驱动方法，其中，当所述源极驱动器的温度位于任意两个预设的温度区间中的较高的一个时，显示数据变化一任意量后，数据电压与预设的公共电压差值的绝对值的改变量小于当所述源极驱动器的温度位于该任意两个预设的温度区间中的较低的一个时，显示数据变化该任意量后，数据电压与预设的公共电压差值的绝对值的改变量。
  12. 如权利要求10所述的显示面板驱动方法，其中，所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及一显示数据及显示灰阶对应关系查找表，所述时序控制及电源管理模块在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器，并利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；或者，
    所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表及一组伽马电压，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将该显示灰阶及其存储的一组伽马电压传输至源极驱动器；或者，
    所述时序控制及电源管理模块存储有分别与多个预设的温度区间对应的多组伽马电压及分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制及电源管理模块在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶，并将与指示信号所对应的温度区间相对应的一组伽马电压及该显示灰阶传输至源极驱动器。
  13. 如权利要求12所述的显示面板驱动方法，其中，所述时序控制及电源管理模块包括时序控制器及电源管理芯片；所述时序控制器及电源管理芯片均电性连接所述源极驱动器；所述时序控制器接入显示数据。
  14. 如权利要求13所述的显示面板驱动方法，其中，所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
    所述时序控制器存储有一显示数据与显示灰阶对应关系查找表，所述时序控制器利用显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
  15. 如权利要求13所述的显示面板驱动方法，其中，所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器；
    所述电源管理模块存储有一组伽马电压，所述电源管理模块将其存储的一组伽马电压传输至源极驱动器。
  16. 如权利要求13所述的显示面板驱动方法，其中，所述电源管理芯片电性连接温度感测器接收由温度感测器传输的指示信号，所述电源管理芯片存储有分别与多个预设的温度区间对应的多组伽马电压，所述电源管理芯片在接收到指示信号后将与指示信号所对应的温度区间相对应的一组伽马电压传输至源极驱动器；
    所述时序控制器电性连接温度感测器接收由温度感测器传输的指示信号，所述时序控制器存储有分别与多个预设的温度区间对应的多个显示数据及显示灰阶对应关系灰阶查找表，所述时序控制器在接收到指示信号后利用与指示信号所对应的温度区间相对应的显示数据及显示灰阶对应关系查找表获取与其接入的显示数据对应的显示灰阶并传输至源极驱动器。
  17. 如权利要求10所述的显示面板驱动方法，其中，所述温度区间为两个，该两个温度区间分别为常温温度区间及高温温度区间；
    所述时序控制及电源管理模块存储有一显示数据及显示灰阶对应关系查找表、以及分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压；或者，
    所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表、以及一组伽马电压；或者，
    所述时序控制及电源管理模块存储有分别与常温温度区间、高温温度区间对应的第一组伽马电压、第二组伽马电压、以及分别与常温温度区间、高温温度区间对应的第一显示数据及显示灰阶对应关系查找表、第二显示数据及显示灰阶对应关系查找表。
  18. 如权利要求10所述的显示面板驱动方法，其中，所述源极驱动器电性连接显示面板并将数据电压传输至所述显示面板。
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