WO2018171428A1 - 有机发光显示器的驱动方法 - Google Patents

有机发光显示器的驱动方法 Download PDF

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Publication number
WO2018171428A1
WO2018171428A1 PCT/CN2018/078273 CN2018078273W WO2018171428A1 WO 2018171428 A1 WO2018171428 A1 WO 2018171428A1 CN 2018078273 W CN2018078273 W CN 2018078273W WO 2018171428 A1 WO2018171428 A1 WO 2018171428A1
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Prior art keywords
time period
preset time
organic light
emitting display
signal
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PCT/CN2018/078273
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English (en)
French (fr)
Inventor
陈心全
王向前
葛明伟
王铮
朱修剑
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昆山国显光电有限公司
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Application filed by 昆山国显光电有限公司 filed Critical 昆山国显光电有限公司
Priority to JP2019553617A priority Critical patent/JP2020514837A/ja
Priority to EP18771070.2A priority patent/EP3605513A4/en
Priority to KR1020197019620A priority patent/KR102241143B1/ko
Priority to US16/318,541 priority patent/US10818243B2/en
Publication of WO2018171428A1 publication Critical patent/WO2018171428A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • 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]
    • G09G3/3266—Details of drivers for scan electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • 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
    • G09G2330/026—Arrangements or methods related to booting a display
    • 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

Definitions

  • the present invention relates to the field of flat panel display technologies, and in particular, to a method for driving an organic light emitting display.
  • OLED Organic Light Emitting Display
  • TFT-LCD thin film transistor liquid crystal display
  • OLED It has the advantages of high contrast, wide viewing angle, low power consumption and thinner volume. It is expected to become the next-generation flat panel display technology after TFT-LCD. It is one of the most popular technologies in flat panel display technology.
  • An organic light emitting display generally includes a display panel and a display circuit connected to the display panel, the display circuit for driving the display panel to display an image.
  • the screen flicker flash screen
  • the proportion of flash screen problems in organic light-emitting displays is relatively high, which has seriously affected product yield.
  • the GIP signals outputted by the driving circuit to the display panel are configured to different levels before the display panel is normally lit, so as to achieve the purpose of initializing the screen.
  • the GIP signal since the fixed level of the driving circuit is continuously attenuated, the GIP signal has no initialization effect after several lines of transmission, so the organic light-emitting display still has a high proportion of splash screen problems.
  • the present invention provides a driving method of an organic light emitting display, the driving method of the organic light emitting display comprising: controlling a GIP signal and a data signal provided to a plurality of pixels of the organic light emitting display by being turned on, The organic light emitting display is caused to sequentially go through an initialization state, a black state, and a normal display state.
  • the booting process of the organic light emitting display sequentially includes a first preset time period, a second preset time period, and a third preset time period;
  • the data signal is set to a high impedance state, and the GIP signal is set to a normal output state;
  • the data signal is set to a black state, and the GIP signal is maintained in a normal output state;
  • the data signal is set to the normal display state while maintaining the GIP signal in the normal output state.
  • the pixel positive pressure and the pixel negative pressure are provided to the plurality of pixels in a second preset time period.
  • the first preset time period, the second preset time period, and the third preset time period both exceed a duration of one frame.
  • the booting process of the organic light emitting display sequentially includes a first preset time period, a second preset time period, and a third preset time period;
  • the data signal is kept in a black state, and the GIP signal is set to a normal output state;
  • the data signal is set to the normal display state while maintaining the GIP signal in the normal output state.
  • the pixel positive pressure and the pixel negative pressure are provided to the plurality of pixels in a second preset time period.
  • the first preset time period, the second preset time period, and the third preset time period both exceed a duration of one frame.
  • the booting process of the organic light emitting display sequentially includes a first preset time period, a second preset time period, and a third preset time period;
  • the data signal is set to 0V, and the GIP signal is set to the normal output state;
  • the data signal is set to the normal display state while maintaining the GIP signal in the normal output state.
  • the pixel positive pressure and the pixel negative pressure are provided to the plurality of pixels in a second preset time period.
  • the first preset time period, the second preset time period, and the third preset time period both exceed a duration of one frame.
  • the GIP signal and the data signal are controlled during the first preset time period of starting up to achieve the purpose of initializing the screen body, and the data signal is set for the second preset time period. It is black, thus avoiding the problem of splash screen when the organic light-emitting display is turned on.
  • FIG. 1 is a schematic structural view of an organic light emitting display according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of signals in a driving method of an organic light emitting display according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of signals in a driving method of an organic light emitting display according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of signals in a method of driving an organic light emitting display according to Embodiment 3 of the present invention.
  • FIG. 1 is a schematic structural diagram of an organic light emitting display according to an embodiment of the present invention.
  • the organic light emitting display includes: an organic light emitting display panel 10 having a plurality of pixels and a GIP circuit (not shown) for providing a GIP signal to the plurality of pixels.
  • a data signal generating module 20 for providing data signals to the plurality of pixels; a voltage generating module 30 for respectively providing voltage signals to the plurality of pixels and the GIP circuit; a signal generating module 40, configured to respectively provide a control signal to the voltage generating module 30 and the GIP circuit; a timing controller 50, the data signal generating module 20, the voltage generating module 30, and the control signal generating module 40 all pass the The timing controller 50 is connected to the organic light emitting display panel 10, and the timing controller 50 is configured to control timings of outputting the scan signal, the data signal, the voltage signal, and the control signal to the organic light emitting display panel 10.
  • the organic light emitting display panel 10 includes a plurality of pixels arranged in a matrix and a GIP circuit (not shown) for generating and outputting a multi-level GIP signal (ie, a scan signal).
  • a multi-level GIP signal ie, a scan signal.
  • a plurality of pixels arranged in a matrix are connected to the GIP circuit, and are gated according to a scan signal provided by the GIP circuit.
  • the GIP circuit begins to generate and output a multi-level GIP signal.
  • the first level GIP signal is provided to the scan line of the first row of pixels, and the first row of pixels is gated according to the first level GIP signal.
  • the second level GIP signal is supplied to the scan line of the second row of pixels, and the second row of pixels is gated according to the second level GIP signal.
  • the nth stage GIP signal is provided to the scan line of the nth row of pixels, and the nth row of pixels are gated according to the nth stage GIP signal, where n is a natural number.
  • the data signal generating module 20 is configured to generate and output a data signal (ie, the source signal in FIG. 2 to FIG. 4).
  • a data signal ie, the source signal in FIG. 2 to FIG. 4.
  • the voltage generating module 30 is configured to generate and output a voltage signal, where the voltage signal includes a voltage signal required by the pixel and a voltage signal required by the GIP circuit, and the voltage signal required by the pixel includes a positive pixel voltage ELVDD and pixel negative voltage ELVSS, the voltage signals required by the GIP circuit include GIP circuit positive voltage and GIP circuit negative voltage.
  • the control signal generating module 40 is configured to generate and output a control signal, the control signal including a start signal required by the GIP circuit and a voltage control signal for controlling the voltage signal.
  • the voltage generating module 30 generates and outputs the pixel positive voltage ELVDD and the pixel negative voltage ELVSS when the voltage control signal is received.
  • the driving method of the organic light emitting display includes:
  • the booting process includes a first preset time period t1 (initialization state), a second preset time period t2 (black state), and a third preset time period t3 (normal display state);
  • the data signal is set to a high impedance state (Hiz level), and the GIP signal is set to a normal output state (Active);
  • the data signal is set to black state (Black) while maintaining the GIP signal in a normal output state (Active);
  • the data signal is set to the normal display state (Normal Display) while the GIP signal is maintained in the normal output state (Active).
  • the data signal generated and output by the data signal generating module 20 is a high impedance state (Hiz level) in a first preset time period t1, and a black state (Black) in a second preset time period t2.
  • the three preset time period t3 is a normal display state (Normal Display).
  • the GIP signal provided by the GIP circuit is always in a normal output state (Active) from the first preset time period t1 to the third preset time period t3.
  • the control signal generation module 40 outputs a voltage control signal for a second predetermined time period t2, and the voltage generation module 30 generates and outputs the pixel positive voltage ELVDD and the pixel negative voltage ELVSS. That is, after the end of the high-resistance (Hiz level) data signal, the pixel positive voltage ELVDD and the pixel negative voltage ELVSS are supplied to the pixels of the organic light-emitting display panel 10.
  • the time (t4) from the start of the voltage signal of the pixel to the end of the second preset time is at least one frame duration.
  • the third preset time period t3 ie, normal display
  • the voltage signal of the pixel is already stable, so the pixel can be in the third preset time period t3. Stable light.
  • the first preset time period t1, the second preset time period t2, and the third preset time period t3 all exceed a duration of one frame, and t4 may be less than or equal to t2 and greater than or equal to a duration of one frame.
  • the first preset time period t1 is an initialization state, during which the GIP signal of the normal output state (Active) and the high-resistance (Hiz level) data signal are provided at least one frame time simultaneously. Up to the pixel, so the purpose of initializing the screen is reached.
  • the second preset time period is a preset picture (black screen) display phase, during which the data signal is provided to the pixel (including the pixel positive voltage ELVDD and the pixel negative voltage ELVSS) because the data signal is set to black state (Black). At the time, there will be no splash screen problems.
  • the third preset time period t3 is a normal display state.
  • the present invention also provides a driving method of an organic light emitting display.
  • the driving method of the organic light emitting display includes:
  • the booting process includes a first preset time period t1 (initialization state), a second preset time period t2 (black state), and a third preset time period t3 (normal display state);
  • the data signal is set to black state (Black), and the GIP signal is set to a specific state (User defined);
  • the data signal is kept in a black state (Black), and the GIP signal is set to a normal output state (Active);
  • the data signal is set to the normal display state (Normal Display) while the GIP signal is maintained in the normal output state (Active).
  • the data signal generated and output by the data signal generating module 20 is black in the first preset time period t1 and the second preset time period t2, and is normal in the third preset time period t3. Display status (Normal Display).
  • the GIP signal provided by the GIP circuit is in a specific state (User defined) during the first preset time period t1, and is in a normal output state (Active) in the second preset time period t2 and the third preset time period t3.
  • the control signal generation module 40 outputs a voltage control signal for a second predetermined time period t2, and the voltage generation module 30 generates and outputs the pixel positive voltage ELVDD and the pixel negative voltage ELVSS. That is, after the end of the GIP signal of the specific state, the pixel positive voltage ELVDD and the pixel negative voltage ELVSS are supplied to the pixel.
  • the specific definition refers to selecting a specific input clock signal (GIP input clock) according to the EM circuit architecture of the GIP circuit, so that the illumination control signal (EM signal) is kept at a high level output.
  • the time (t4) from the start of the voltage signal of the pixel to the end of the second preset time is at least one frame duration.
  • the third preset time period t3 ie, normal display
  • the voltage signal of the pixel is already stable, so the pixel can be in the third preset time period t3. Stable light.
  • the first preset time period t1, the second preset time period t2, and the third preset time period t3 all exceed a duration of one frame, and t4 may be less than or equal to t2 and greater than or equal to a duration of one frame.
  • the first preset time period t1 is an initialization state, during which the GIP signal of the specific state (User defined) and the data signal of the black state (Black) have at least one frame time simultaneously provided to the pixel. Therefore, the purpose of initializing the screen is achieved.
  • the second preset time period is a preset picture (black screen) display phase, during which the data signal is provided to the pixel (including the pixel positive voltage ELVDD and the pixel negative voltage ELVSS) because the data signal is set to black state (Black). At the time, there will be no splash screen problems.
  • the third preset time period t3 is a normal display state.
  • the present invention also provides another driving method of the organic light emitting display.
  • the driving method of the organic light emitting display includes:
  • the booting process includes a first preset time period t1 (initialization state), a second preset time period t2 (black state), and a third preset time period t3 (normal display state);
  • the data signal is set to 0V, and the GIP signal is set to the normal output state (Active);
  • the data signal is set to the normal display state (Normal Display) while the GIP signal is maintained in the normal output state (Active).
  • the data signal generated and output by the data signal generating module 20 is 0V in the first preset time period t1, the second preset time period t2 is black state, and the third preset time period t3 is Normal display status (Normal Display).
  • the GIP signal provided by the GIP circuit is always in a normal output state (Active) for a first preset time period to a third preset time period t3.
  • the control signal generation module 40 outputs a voltage control signal for a second predetermined time period t2, and the voltage generation module 30 generates and outputs the pixel positive voltage ELVDD and the pixel negative voltage ELVSS. That is, after the data signal of 0 V, the pixel positive voltage ELVDD and the pixel negative voltage ELVSS are supplied to the pixel.
  • the time (t4) from the start of the voltage signal of the pixel to the end of the second preset time is at least one frame duration.
  • the third preset time period t3 ie, normal display
  • the voltage signal of the pixel is already stable, so the pixel can be in the third preset time period t3. Stable light.
  • the first preset time period t1, the second preset time period t2, and the third preset time period t3 all exceed a duration of one frame, and t4 may be less than or equal to t2 and greater than or equal to a duration of one frame.
  • the first preset time period t1 is an initialization state at the time of power-on, during which the GIP signal of the normal output state (Active) and the 0V data signal are simultaneously provided to the pixel at least one frame time. Therefore, the purpose of initializing the screen is reached.
  • the second preset time period is a preset screen (black screen) display phase at the time of power-on, during which the data signal is set to a black state (Black), thereby providing a voltage signal (including a pixel positive voltage ELVDD and a pixel) to the pixel.
  • ELVSS negative pressure
  • the third preset time period t3 is a normal display state.
  • the GIP signal and the data signal are controlled during the first preset time period of starting up to achieve the purpose of initializing the screen body, and the second preset time period is set. It is black, thus avoiding the problem of splash screen when the organic light-emitting display is turned on.

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  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

本发明提供了一种有机发光显示器的驱动方法，包括：通过在开机时控制GIP信号与数据信号，使得所述有机发光显示器依次经过初始化状态、黑态和正常显示状态。在本发明提供的有机发光显示器的驱动方法中，通过在开机的第一预设时间段控制GIP信号与数据信号，以达到初始化屏体的目的，并将第二预设时间段将数据信号设为黑态，从而避免有机发光显示器在开机时出现闪屏问题。

Description

有机发光显示器的驱动方法 技术领域
本发明涉及平板显示技术领域，特别涉及一种有机发光显示器的驱动方法。
背景技术
有机发光显示器(英文全称Organic Lighting Emitting Display，简称OLED)是一种主动发光器件，相比现在的主流平板显示技术薄膜晶体管液晶显示器(英文全称Thin Film Transistor liquid crystal display，简称TFT-LCD)，OLED具有高对比度、广视角、低功耗、体积更薄等优点，有望成为继TFT-LCD之后的下一代平板显示技术，是目前平板显示技术中受到关注最多的技术之一。
有机发光显示器通常包括显示面板和所述显示面板连接的显示电路，所述显示电路用于驱动所述显示面板显示图像。在实际制造和使用过程中发现，由于显示面板会有残余电荷，在开机画面容易出现屏幕闪烁(闪屏)的问题。目前，有机发光显示器出现闪屏问题的比例较高，已经严重影响产品良率。
为此，目前业界通常在正常点亮显示面板之前，将所述驱动电路输出至显示面板的GIP信号配置为不同电平值，以达到初始化屏体的目的。但是，由于驱动电路级联时固定电平会持续衰减，GIP信号传输数行后已无初始化效果，因此目前有机发光显示器仍有较高比例的闪屏问题。
基此，如何解决现有的有机发光显示器开机闪屏的问题，成了本领域技术人员亟待解决的一个技术问题。
发明内容
本发明的目的在于提供一种有机发光显示器的驱动方法，以解决现有的有机发光显示器存在开机闪屏的问题。
为解决上述问题，本发明提供一种有机发光显示器的驱动方法，所述有机发光显示器的驱动方法包括：通过在开机时控制提供给所述有机发光显示器的多个像素的GIP信号与数据信号，使得所述有机发光显示器依次经过初始化状态、黑态和正常显示状态。
可选的，在所述的有机发光显示器的驱动方法中，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
在第一预设时间段，将数据信号设置为高阻态，同时将GIP信号设置为正常输出状态；
在第二预设时间段，将数据信号设置为黑态，同时将GIP信号保持为正常输出状态；
在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
可选的，在所述的有机发光显示器的驱动方法中，在第二预设时间段，向所述多个像素提供像素正压和像素负压。
可选的，在所述的有机发光显示器的驱动方法中，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
可选的，在所述的有机发光显示器的驱动方法中，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
在第一预设时间段，将数据信号设置为黑态，同时将GIP信号设置为特定状态；
在第二预设时间段，将数据信号保持为黑态，同时将GIP信号设置为正常输出状态；
在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
可选的，在所述的有机发光显示器的驱动方法中，在第二预设时间段，向所述多个像素提供像素正压和像素负压。
可选的，在所述的有机发光显示器的驱动方法中，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
可选的，在所述的有机发光显示器的驱动方法中，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
在第一预设时间段，将数据信号设置为0V，同时将GIP信号设置为正常输出状态；
在第二预设时间段，将数据信号保持为黑态，同时将GIP信号保持为正常输出状态；
在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
可选的，在所述的有机发光显示器的驱动方法中，在第二预设时间段，向所述多个像素提供像素正压和像素负压。
可选的，在所述的有机发光显示器的驱动方法中，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
在本发明提供的有机发光显示器的驱动方法中，通过在开机的第一预设时间段控制GIP信号与数据信号，以达到初始化屏体的目的，并将第二预设时间段将数据信号设为黑态，从而避免有机发光显示器在开机时出现闪屏问题。
附图说明
图1是本发明实施例一的有机发光显示器的结构示意图；
图2是本发明实施例一的有机发光显示器的驱动方法中各信号示意图；
图3是本发明实施例二的有机发光显示器的驱动方法中各信号示意图；
图4是本发明实施例三的有机发光显示器的驱动方法中各信号示意图。
具体实施方式
以下结合附图和具体实施例对本发明提出的一种有机发光显示器的驱动方法作进一步详细说明。根据下面说明和权利要求书，本发明的优点和特征将更清楚。需说明的是，附图均采用非常简化的形式且均使用非精准的比例，仅用以方便、明晰地辅助说明本发明实施例的目的。
【实施例一】
请参考图1，其为本发明实施例的有机发光显示器的结构示意图。如图1所示，所述有机发光显示器包括：一有机发光显示面板10，具有多个像素和GIP电路(图中未示出)，所述GIP电路用于向所述多个像素提供GIP信号(或称扫描信号)；一数据信号发生模块20，用于向所述多个像素提供数据信号；一电压 产生模块30，用于向所述多个像素和GIP电路分别提供电压信号；一控制信号发生模块40，用于向所述电压产生模块30和GIP电路分别提供控制信号；一时序控制器50，所述数据信号发生模块20、电压产生模块30和控制信号发生模块40均通过所述时序控制器50与所述有机发光显示面板10连接，所述时序控制器50用于控制所述扫描信号、数据信号、电压信号和控制信号向所述有机发光显示面板10输出的时序。
具体的，所述有机发光显示面板10包括多个呈矩阵排布的像素和GIP电路(图中未示出)，所述GIP电路用于产生并输出多级GIP信号(即扫描信号)，所述多个呈矩阵排布的像素与所述GIP电路连接，并根据所述GIP电路提供的扫描信号进行选通。
当所述电压产生模块30将所述GIP电路所需的电压信号提供至所述GIP电路，同时所述控制信号发生模块40将所述GIP电路所需的起始信号提供至所述GIP电路，所述GIP电路开始产生并输出多级GIP信号。通常的，第1级GIP信号提供给第1行像素的扫描线，所述第1行像素根据所述第1级GIP信号进行选通。第2级GIP信号提供给第2行像素的扫描线，所述第2行像素根据所述第2级GIP信号进行选通。如此类推，第n级GIP信号提供给第n行像素的扫描线，所述第n行像素根据所述第n级GIP信号进行选通，其中n为自然数。
所述数据信号发生模块20用于产生并输出数据信号(即图2至图4中的source信号)，所述有机发光显示面板10的像素选通时，若接收到所述数据信号发生模块20提供的数据信号，就会根据所述数据信号显示图像。
所述电压产生模块30用于产生并输出电压信号，所述电压信号包括所述像素所需的电压信号和所述GIP电路所需的电压信号，所述像素所需的电压信号包括像素正压ELVDD和像素负压ELVSS，所述GIP电路所需的电压信号包括GIP电路正压和GIP电路负压。
所述控制信号发生模块40用于产生并输出控制信号，所述控制信号包括所述GIP电路所需的起始信号和用于控制所述电压信号的电压控制信号。所述电压产生模块30在收到所述电压控制信号时产生并输出所述像素正压ELVDD和像素负压ELVSS。
请结合参考图1和图2，所述有机发光显示器的驱动方法包括：
开机过程依次包括第一预设时间段t1(初始化状态)、第二预设时间段t2(黑态)和第三预设时间段t3(正常显示状态)；
在第一预设时间段t1，将数据信号设置为高阻态(Hiz level)，同时将GIP信号设置为正常输出状态(Active)；
在第二预设时间段t2，将数据信号设置为黑态(Black)，同时将GIP信号保持为正常输出状态(Active)；
在第三预设时间段t3，将数据信号设置为正常显示状态(Normal Display)，同时将GIP信号保持为正常输出状态(Active)。
具体的，所述数据信号发生模块20产生并输出的数据信号在第一预设时间段t1为高阻态(Hiz level)，在第二预设时间段t2为黑态(Black)，在第三预设时间段t3为正常显示状态(Normal Display)。所述GIP电路提供的GIP信号从第一预设时间段t1至第三预设时间段t3一直为正常输出状态(Active)。所述控制信号发生模块40在第二预设时间段t2输出电压控制信号，所述电压产生模块30产生并输出所述像素正压ELVDD和像素负压ELVSS。即，在高阻态(Hiz level)的数据信号结束之后，向所述有机发光显示面板10的像素提供像素正压ELVDD和像素负压ELVSS。
优选的，从像素的电压信号开始提供至第二预设时间结束的时间(t4)至少为一帧的时长。在第三预设时间段t3(即正常显示)前，由于像素的电压信号施加到像素上的时间至少一帧，此时像素的电压信号已经稳定，因此像素在第三预设时间段t3能够稳定发光。
本实施例中，所述第一预设时间段t1、第二预设时间段t2和第三预设时间段t3均超过一帧的时长，t4可以小于等于t2且大于等于一帧的时长。
本实施例中，所述第一预设时间段t1为初始化状态，在此期间由于正常输出状态(Active)的GIP信号与高阻态(Hiz level)的数据信号有至少一帧的时间同时提供至像素，因此达到初始化屏体的目的。所述第二预设时间段为预设画面(黑画面)显示阶段，在此期间由于数据信号设置为黑态(Black)，因此向像素提供电压信号(包括像素正压ELVDD和像素负压ELVSS)之时，也不会 出现闪屏问题。所述第三预设时间段t3为正常显示状态。
【实施例二】
相应的，本发明还提供了一种有机发光显示器的驱动方法。请结合参考图1和图3，所述有机发光显示器的驱动方法包括：
开机过程依次包括第一预设时间段t1(初始化状态)、第二预设时间段t2(黑态)和第三预设时间段t3(正常显示状态)；
在第一预设时间段t1，将数据信号设置为黑态(Black)，同时将GIP信号设置为特定状态(User defined)；
在第二预设时间段t2，将数据信号保持为黑态(Black)，同时将GIP信号设置为正常输出状态(Active)；
在第三预设时间段t3，将数据信号设置为正常显示状态(Normal Display)，同时将GIP信号保持为正常输出状态(Active)。
具体的，所述数据信号发生模块20产生并输出的数据信号在第一预设时间段t1和第二预设时间段t2均为黑态(Black)，在第三预设时间段t3为正常显示状态(Normal Display)。所述GIP电路提供的GIP信号在第一预设时间段t1为特定状态(User defined)，在第二预设时间段t2和第三预设时间段t3一直为正常输出状态(Active)。所述控制信号发生模块40在第二预设时间段t2输出电压控制信号，所述电压产生模块30产生并输出所述像素正压ELVDD和像素负压ELVSS。即，在特定状态(User defined)的GIP信号结束之后，向像素提供像素正压ELVDD和像素负压ELVSS。
其中，所述特定状态(User defined)是指根据所述GIP电路的EM电路架构选择特定的输入时钟信号(GIP input clock)，从而使得发光控制信号(EM信号)保持高电平输出。
优选的，从像素的电压信号开始提供至第二预设时间结束的时间(t4)至少为一帧的时长。在第三预设时间段t3(即正常显示)前，由于像素的电压信号施加到像素上的时间至少一帧，此时像素的电压信号已经稳定，因此像素在第三预设时间段t3能够稳定发光。
本实施例中，所述第一预设时间段t1、第二预设时间段t2和第三预设时间 段t3均超过一帧的时长，t4可以小于等于t2且大于等于一帧的时长。
本实施例中，所述第一预设时间段t1为初始化状态，在此期间由于特定状态(User defined)的GIP信号与黑态(Black)的数据信号有至少一帧的时间同时提供至像素，因此达到了初始化屏体的目的。所述第二预设时间段为预设画面(黑画面)显示阶段，在此期间由于数据信号设置为黑态(Black)，因此向像素提供电压信号(包括像素正压ELVDD和像素负压ELVSS)之时，也不会出现闪屏问题。所述第三预设时间段t3为正常显示状态。
【实施例三】
相应的，本发明还提供了另一种有机发光显示器的驱动方法。请结合参考图1和图4，所述有机发光显示器的驱动方法包括：
开机过程依次包括第一预设时间段t1(初始化状态)、第二预设时间段t2(黑态)和第三预设时间段t3(正常显示状态)；
在第一预设时间段t1，将数据信号设置为0V，同时将GIP信号设置为正常输出状态(Active)；
在第二预设时间段t2，将数据信号保持为黑态(Black)，同时将GIP信号保持为正常输出状态(Active)；
在第三预设时间段t3，将数据信号设置为正常显示状态(Normal Display)，同时将GIP信号保持为正常输出状态(Active)。
具体的，所述数据信号发生模块20产生并输出的数据信号在第一预设时间段t1为0V，第二预设时间段t2为黑态(Black)，在第三预设时间段t3为正常显示状态(Normal Display)。所述GIP电路提供的GIP信号在第一预设时间至第三预设时间段t3一直为正常输出状态(Active)。所述控制信号发生模块40在第二预设时间段t2输出电压控制信号，所述电压产生模块30产生并输出所述像素正压ELVDD和像素负压ELVSS。即，在0V的数据信号之后，向像素提供像素正压ELVDD和像素负压ELVSS。
优选的，从像素的电压信号开始提供至第二预设时间结束的时间(t4)至少为一帧的时长。在第三预设时间段t3(即正常显示)前，由于像素的电压信号施加到像素上的时间至少一帧，此时像素的电压信号已经稳定，因此像素在第 三预设时间段t3能够稳定发光。
本实施例中，所述第一预设时间段t1、第二预设时间段t2和第三预设时间段t3均超过一帧的时长，t4可以小于等于t2且大于等于一帧的时长。
本实施例中，所述第一预设时间段t1为开机时的初始化状态，在此期间由于正常输出状态(Active)的GIP信号与0V的数据信号有至少一帧的时间同时提供至像素，因此达到初始化屏体的目的。所述第二预设时间段为开机时的预设画面(黑画面)显示阶段，在此期间由于数据信号设置为黑态(Black)，因此向像素提供电压信号(包括像素正压ELVDD和像素负压ELVSS)之时，也不会出现闪屏问题。所述第三预设时间段t3为正常显示状态。
综上，在本发明提供的有机发光显示器的驱动方法中，通过在开机的第一预设时间段控制GIP信号与数据信号，以达到初始化屏体的目的，并将第二预设时间段设为黑态，从而避免有机发光显示器在开机时出现闪屏问题。
上述描述仅是对本发明较佳实施例的描述，并非对本发明范围的任何限定，本发明领域的普通技术人员根据上述揭示内容做的任何变更、修饰，均属于权利要求书的保护范围。

Claims (10)

  1. 一种有机发光显示器的驱动方法，其特征在于，通过在开机时控制GIP信号与数据信号，使得所述有机发光显示器依次经过初始化状态、黑态和正常显示状态。
  2. 如权利要求1所述的有机发光显示器的驱动方法，其特征在于，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
    在第一预设时间段，将数据信号设置为高阻态，同时将GIP信号设置为正常输出状态；
    在第二预设时间段，将数据信号设置为黑态，同时将GIP信号保持为正常输出状态；
    在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
  3. 如权利要求2所述的有机发光显示器的驱动方法，其特征在于，在第二预设时间段，向多个像素提供像素正压和像素负压。
  4. 如权利要求2所述的有机发光显示器的驱动方法，其特征在于，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
  5. 如权利要求1所述的有机发光显示器的驱动方法，其特征在于，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
    在第一预设时间段，将数据信号设置为黑态，同时将GIP信号设置为特定状态；
    在第二预设时间段，将数据信号保持为黑态，同时将GIP信号设置为正常输出状态；
    在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
  6. 如权利要求5所述的有机发光显示器的驱动方法，其特征在于，在第二预设时间段，向多个像素提供像素正压和像素负压。
  7. 如权利要求5所述的有机发光显示器的驱动方法，其特征在于，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
  8. 如权利要求1所述的有机发光显示器的驱动方法，其特征在于，所述有机发光显示器的开机过程依次包括第一预设时间段、第二预设时间段和第三预设时间段；
    在第一预设时间段，将数据信号设置为0V，同时将GIP信号设置为正常输出状态；
    在第二预设时间段，将数据信号保持为黑态，同时将GIP信号保持为正常输出状态；
    在第三预设时间段，将数据信号设置为正常显示状态，同时将GIP信号保持为正常输出状态。
  9. 如权利要求8所述的有机发光显示器的驱动方法，其特征在于，在第二预设时间段，向多个像素提供像素正压和像素负压。
  10. 如权利要求8所述的有机发光显示器的驱动方法，其特征在于，所述第一预设时间段、第二预设时间段和第三预设时间段均超过一帧的时长。
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