WO2020062456A1 - Oled显示方法及装置 - Google Patents

Oled显示方法及装置 Download PDF

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Publication number
WO2020062456A1
WO2020062456A1 PCT/CN2018/114429 CN2018114429W WO2020062456A1 WO 2020062456 A1 WO2020062456 A1 WO 2020062456A1 CN 2018114429 W CN2018114429 W CN 2018114429W WO 2020062456 A1 WO2020062456 A1 WO 2020062456A1
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Prior art keywords
data line
resistance value
signal
row
duty cycle
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PCT/CN2018/114429
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English (en)
French (fr)
Inventor
高静
Original Assignee
北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to JP2019544863A priority Critical patent/JP2021502580A/ja
Priority to RU2019125984A priority patent/RU2738040C1/ru
Priority to KR1020197007516A priority patent/KR20200037735A/ko
Publication of WO2020062456A1 publication Critical patent/WO2020062456A1/zh

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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3225Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3258Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the voltage across the light-emitting element
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    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3275Details of drivers for data electrodes
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    • G09G3/20Control 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2077Display of intermediate tones by a combination of two or more gradation control methods
    • G09G3/2081Display of intermediate tones by a combination of two or more gradation control methods with combination of amplitude modulation and time modulation
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/22Control 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
    • G09G3/30Control 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
    • G09G3/32Control 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]
    • G09G3/3208Control 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]
    • G09G3/3275Details of drivers for data electrodes
    • G09G3/3291Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
    • GPHYSICS
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • GPHYSICS
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    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Definitions

  • the present disclosure relates to the field of image display technology, and in particular, to an OLED display method and device.
  • OLED Organic Light-Emitting Diode
  • the pixel circuit of an OLED includes a Reset signal, a Data signal, and an EM signal.
  • the Reset signal is used to reset at a low level.
  • the Data signal is used to charge the capacitor to control the OLED light emission;
  • the EM signal controls the OLED light emission and is active at low level, that is, at high level, the OLED does not emit light and at low level , OLED emits light. Therefore, the brightness of the OLED can be controlled by adjusting the duty cycle of the EM signal.
  • embodiments of the present disclosure provide an OLED display method and device.
  • the technical solution is as follows:
  • an OLED display method including:
  • the N is an integer greater than or equal to 1;
  • a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by obtaining the resistance value of the N-th data line; and according to the resistance value of the N-th data line, the preset resistance value, and the occupation of the preset light-emitting EM signal
  • the duty ratio determines the duty cycle of the EM signal of the N-th Data line; finally, a control signal is output to the N-th Data line according to the duty of the EM signal of the N-th Data line.
  • a preset resistance value and a preset duty ratio of the EM signal are used as a reference, and the duty ratio of the EM signal of the data line of each row is determined based on the resistance value of the data line of each row, so that each row has a corresponding EM The duty cycle of the signals.
  • the determining the duty cycle of the EM signal of the N-th Data Line according to the resistance value of the N-th Data line, a preset resistance value, and a preset duty of the light-emitting EM signal include:
  • the M is an integer greater than or equal to 1, and the M is different from the N;
  • the duty cycle of the EM signal of the N-th Data line is determined according to the resistance value of the M-th Data line, the EM signal of the M-th line, and the resistance of the N-th Data line.
  • the determining of the Nth row of Data according to the resistance value of the Mth row Data line, the duty ratio of the EM signal of the Mth row, and the resistance value of the Nth row Data line including:
  • the EM (N) is a duty cycle of the EM signal of the N-th row Data line
  • the EM (M) is a duty cycle of the EM signal of the M-th Data line
  • R ( M) is a resistance value of the M-th row Data line
  • R (N) is a resistance value of the N-th row Data line.
  • the obtaining the resistance value of the N-th data data line includes:
  • the acquiring the resistance value of the M-th Data line includes:
  • the R (N) is the resistance value of the N-th row of the Data line
  • the R (M) is the resistance value of the M-th row of the Data line
  • the ⁇ is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • the S is the cross-sectional area of the Data line
  • the R is the initial resistance value of the Data line.
  • an OLED display device including:
  • An obtaining module configured to obtain the resistance value of the data line of the Nth row; the N is an integer greater than or equal to 1;
  • a determining module configured to determine the occupation of the EM signal of the N-th data line according to the resistance value of the N-th data line obtained by the obtaining module, a preset resistance value, and a preset duty ratio of the light-emitting EM signal; Air ratio
  • An output module is configured to output a control signal to the N-th data line according to a duty cycle of the EM signal of the N-th data line determined by the determining module.
  • the determination module includes: a first acquisition sub-module and a first determination sub-module;
  • the first acquisition sub-module is configured to acquire a resistance value of the M-th row of the Data line and a duty ratio of the EM signal of the M-th row; the M is an integer greater than or equal to 1, and the M and the N is different;
  • the first determining sub-module is configured to, according to the resistance value of the M-th row of the Data line, the EM signal of the M-th row, and the resistance of the N-th row of the Data line obtained by the first obtaining sub-module Determining the duty cycle of the EM signal of the N-th data line.
  • the first determining submodule includes: a second determining submodule
  • the second determining submodule is configured to Determining a duty cycle of the EM signal of the N-th Data line
  • the EM (N) is a duty cycle of the EM signal of the N-th row Data line
  • the EM (M) is a duty cycle of the EM signal of the M-th Data line
  • R ( M) is a resistance value of the M-th row Data line
  • R (N) is a resistance value of the N-th row Data line.
  • the acquisition module includes: a second acquisition submodule
  • the second acquisition submodule is configured to Obtaining a resistance value of the N-th row of the Data line
  • R (N) is the resistance value of the Nth row Data line
  • is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • S is the cross section of the Data line Area, where R is the initial resistance value of the Data line.
  • the first acquisition submodule includes: a third acquisition submodule
  • the third obtaining submodule is configured to Obtaining a resistance value of the M-th row of the Data line
  • R (M) is the resistance value of the M-th row Data line
  • is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • S is the cross-section of the Data line Area, where R is the initial resistance value of the Data line.
  • an OLED display device including:
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the N is an integer greater than or equal to 1;
  • a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • a computer-readable storage medium on which computer instructions are stored, and the instructions implement the following steps when executed by a processor:
  • the N is an integer greater than or equal to 1;
  • a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • Fig. 1 is a schematic diagram showing a pixel circuit of an OLED according to an exemplary embodiment.
  • Fig. 2 is a schematic diagram illustrating an operation timing chart of a pixel circuit of an OLED according to an exemplary embodiment.
  • Fig. 3 is a flow chart showing an OLED display method according to a first exemplary embodiment.
  • Fig. 4 is a flow chart showing step S102 in an OLED display method according to an exemplary embodiment.
  • Fig. 5 is a flowchart illustrating an OLED display method according to a second exemplary embodiment.
  • Fig. 6 is a schematic circuit diagram of an OLED display device according to an exemplary embodiment.
  • Fig. 7 is a block diagram showing an OLED display device according to an exemplary embodiment.
  • Fig. 8 is a block diagram of a determining module 12 in an OLED display device according to an exemplary embodiment.
  • Fig. 9 is a block diagram of a first determining sub-module 122 in an OLED display device according to an exemplary embodiment.
  • Fig. 10 is a block diagram of an acquisition module 11 in an OLED display device according to an exemplary embodiment.
  • Fig. 11 is a block diagram of a first acquisition sub-module 121 in an OLED display device according to an exemplary embodiment.
  • Fig. 12 is a block diagram showing an OLED display device 80 according to an exemplary embodiment.
  • Fig. 1 is a schematic diagram showing a pixel circuit of an OLED according to an exemplary embodiment.
  • the circuit includes: an organic light emitting diode OLED, thin film transistors T1-T6, and a storage capacitor C; wherein the cathode of the OLED and T2
  • the first end of T2 is connected, the gate of T2 is connected to the gate of T1, the gate of T4, the first end of C, the first end of T5, and the first end of T6 are connected;
  • the second end of T4 is connected to The second end of T6 is connected; the first end of T4, the first end of T3 and the first end of T1 are connected; the second end of T1 is connected to the second end of C.
  • T1, T2, and OLED constitute the basic OLED driving relationship
  • T3-T6 can be controlled by their respective control end signals to be in the on or off state.
  • the first driving voltage line is applied with a forward working bias EL VDD and is connected to the second terminal of T1, and the second driving voltage line is applied with a negative working bias EL VSS and is connected to the anode of the OLED;
  • the data writing voltage line is provided with a data writing voltage signal (Data signal) V Data that sets how the OLED in the circuit emits light, and is connected to the second terminal (which can be the source) of T3;
  • Data signal data writing voltage signal
  • the initialization voltage line is applied with a constant initialization voltage signal V initial and is connected to the second terminal (which can be the source) of T5.
  • the write switch signal line is loaded with the write switch signal voltage signal V Gate , which is connected to the gate of T3 and the gate of T6 respectively;
  • the reset switch signal line is loaded with a reset switch signal voltage signal (Reset signal) V Ref and is connected to the gate of T5;
  • the driving switch signal line is loaded with a driving switching signal voltage signal (EM signal) V Emission , and is connected to the gate of T1 and the gate of T2.
  • EM signal driving switching signal voltage signal
  • the potential zeros of all bias voltages are connected to the same common terminal, and the potential zeros of all signal voltages are also connected to the same common terminal.
  • V Gate , V Ref , V Emission , V Data , and C represent write switch signals, reset switch signals, drive switch signals, data write voltage lines, and capacitor charge and discharge signals, respectively.
  • V Ref when V Ref is at a low level and V Gate is at a high level, the transistor T5 is turned on and is in a reset phase at this time;
  • V Ref When V Ref is high, V Gate is high, and V Data is also high, it belongs to the data writing stage, and the capacitor C is charged;
  • V Ref When V Ref is at a high level and V Gate is at a low level, it belongs to a light-emitting stage, at this time C performs a discharge operation to make the OLED emit light.
  • the EM signal of the N-th data line is determined by obtaining the resistance value of the N-th data line; and according to the resistance of the N-th data line, a preset resistance value, and a preset duty cycle of the light-emitting EM signal. Finally, according to the duty cycle of the EM signal of the N-th Data line, a control signal is output to the N-th Data line.
  • a preset resistance value and a preset duty ratio of the EM signal are used as a reference, and the duty ratio of the EM signal of the data line of each row is determined based on the resistance value of the data line of each row, so that each row has a corresponding EM The duty cycle of the signals.
  • Fig. 3 is a flowchart illustrating an OLED display method according to an exemplary embodiment. As shown in Fig. 3, the method includes the following steps S101-S103:
  • step S101 the resistance value of the N-th data line is obtained; N is an integer greater than or equal to 1.
  • step S102 the duty cycle of the EM signal of the data line of the Nth row is determined according to the resistance value of the Data line of the Nth row, the preset resistance value, and the preset duty ratio of the light-emitting EM signal.
  • step S103 a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • the main line drop is caused by the increase in resistance on the Data line.
  • the resistance away from the input end of the Data line is greater than the resistance near the input end of the Data line.
  • the resistance on the line increases, and the duty cycle of the EM signal on each row of the Data line is the same, so that the OLED current will decrease with the increase of the length of the Data line, which will cause the reduction of the OLED display brightness, which will lead to OLED products.
  • the EM signal of each row of the Data line is controlled separately, that is, the EM signal of each row of the Data line is independent, so that the resistance change of the Data line can be effectively avoided.
  • the problem of uneven brightness of OLED products during the display process is caused.
  • the EM signal of the Data line of each row is independent, but the resistance change of the Data line cannot be changed. Therefore, the EM signal of the Data line of each row needs to be determined based on the resistance value of the Data line to avoid the change of the resistance value of the Data line. Effect on OLED current.
  • a resistance value and an EM signal can be preset first, and then the preset resistance value and the duty ratio of the preset EM signal are used as a reference, and the EM signal occupation of each data line is determined based on the resistance value of each data line. Space ratio, so that the duty cycle of the EM signal of the data line of each row is based on the resistance value of the data line of the row.
  • the EM signal of the N-th data line is determined by obtaining the resistance value of the N-th data line; and according to the resistance of the N-th data line, a preset resistance value, and a preset duty cycle of the light-emitting EM signal. Finally, according to the duty cycle of the EM signal of the N-th Data line, a control signal is output to the N-th Data line.
  • a preset resistance value and a preset duty ratio of the EM signal are used as a reference, and the duty ratio of the EM signal of the data line of each row is determined based on the resistance value of the data line of each row, so that each row has a corresponding EM The duty cycle of the signals.
  • step S102 can be implemented as the following steps S1021-step S1022:
  • step S1021 the resistance value of the M-th row of the Data line and the duty ratio of the EM signal of the M-th row are obtained; M is an integer greater than or equal to 1, and M and N are different.
  • step S1022 the duty ratio of the EM signal of the Nth data line is determined according to the resistance value of the Mth data line, the EM signal of the Mth line, and the resistance value of the Nth data line.
  • the resistance value of the Data line of a certain row and the duty cycle of the EM signal of the Data line of the row can be determined in each row of the Data lines of the OLED product as the preset resistance value and the duty ratio of the preset light-emitting EM signal, so that Based on the resistance value of the Data line of the row and the duty cycle of the EM signal of the Data line of the row, the resistance value and the EM signal of the Data line of the other row are adjusted.
  • the resistance value of the Data line in one row and the duty cycle of the EM signal of the Data line of the OLED product are used to adjust the resistance value and EM signal of the Data line in the other row, the data in the other row after adjustment is adjusted.
  • the resistance value and EM signal of the line are more suitable for the current OLED products to ensure the uniformity of the display of the current OLED products.
  • This embodiment does not limit which row of the M-th row Data line is, as long as it is different from the N-th row.
  • the duty cycle of the EM signal For example: you can determine the duty cycle of the EM signal of the Data line of other rows according to the resistance value of the Data line in the fourth row and the EM signal; you can also determine the duty cycle of the Data line of other rows according to the resistance value of the Data line in the first row and the EM signal. The duty cycle of the EM signal.
  • the duty cycle of the EM signal of the N-th Data line can be determined according to the resistance value of the N-th Data line and the EM signal.
  • N is an integer greater than or equal to 2
  • M is N-1.
  • the duty cycle of the signal; the duty cycle of the EM signal of the data line in the fourth row is determined according to the resistance value of the Data line in the third row and the EM signal, and so on.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: obtaining the resistance value of the M-th row of the Data line and the duty cycle of the EM signal of the M-th row; then, according to the resistance value of the M-th row of the Data line, the M-th row.
  • the EM signal of the row and the resistance value of the Nth row of the Data line determine the duty cycle of the EM signal of the Nth row of the Data line, so that the adjusted resistance value and EM signal of the Data line of the other row are more suitable for the current OLED product. To ensure the uniformity of the current OLED product display.
  • the duty cycle of the EM signal of the N-th Data line is determined according to the resistance value of the M-th Data line, the duty ratio of the EM signal of the M-th line, and the resistance value of the N-line Data line, including :
  • EM (N) is the duty cycle of the EM signal of the N-th row Data line
  • EM (M) is the duty cycle of the EM signal of the M-th row
  • R (M) is the resistance value of the M-line Data line
  • R (N) is the resistance value of the data line in the Nth row.
  • the duty cycle of the EM signal in the Data line in the third row may be:
  • EM (3) is the duty cycle of the EM signal of the 3rd line Data line
  • EM (2) is the duty cycle of the EM signal of the 2nd line
  • R (3) is the resistance value of the 3rd line Data line
  • R (2) is the resistance value of the Data line in the second row.
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: the resistance value of the M-th row Data line and the duty cycle of the EM signal are used as a reference, and the N-th row of Data is determined based on the resistance value of the N-th row Data line.
  • the duty cycle of the EM signal of the line makes the Nth row have the corresponding duty cycle of the EM signal.
  • the OLED corresponding to the data line of each row can be made to emit light.
  • the brightness tends to be uniform, which effectively improves the uniformity of brightness of OLED products.
  • obtaining the resistance value of the N-th data data line includes:
  • Get the resistance value of the M line Data line including:
  • R (N) is the resistance value of the Data line in the Nth row
  • R (M) is the resistance value of the Data line in the Mth row
  • is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • S is Data The cross-sectional area of the line
  • R is the initial resistance value of the Data line.
  • R is the initial resistance value of the Data line. Due to different panel sizes and resolutions, R will have different values.
  • R is the resistance value of the current medium
  • S is the cross-sectional area of the current medium
  • L is the length of the current medium
  • is the resistivity of the current medium
  • the technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by acquiring the resistance value of the current row Data line, thereby determining the vacuum ratio of the EM signal using the resistance value of the current row Data line, so that each row of Data line corresponds to The luminous brightness of OLED tends to be uniform, which effectively improves the uniformity of brightness of OLED products.
  • FIG. 5 is a flowchart of an OLED display method according to a second exemplary embodiment.
  • FIG. 6 is a schematic circuit diagram of an OLED display device according to an exemplary embodiment. Each device in FIG. 6 is an array test ( English: Array Test), Chip On Film (COF) integrated circuit board (IC) board (should be: Pad), GOA (English: gate on glass), EL VDD
  • COF Chip On Film
  • IC integrated circuit board
  • GOA English: gate on glass
  • EL VDD For the forward operating bias applied on the first driving voltage line according to the above embodiment, EL VSS is the negative operating bias applied on the second driving voltage line according to the above embodiment; as shown in FIG. 5,
  • the method includes the following steps S201-S204:
  • step S201 acquiring the resistance value of the N-th data line and the duty cycle of the EM signal.
  • R (N) is the resistance value of the Data line in the Nth row; ⁇ is the resistivity of the Data line; L is the length of the single pixel Data line; S is the cross-sectional area of the Data line; R is the initial resistance value of the Data line .
  • step S202 obtaining the resistance value of the data line of the N + 1th row of data.
  • R (N + 1) is the resistance value of the Data line in the N + 1th row; ⁇ is the resistivity of the Data line; L is the length of a single pixel Data line; S is the cross-sectional area of the Data line, and R is the Data line The initial resistance value.
  • step S203 the duty cycle of the EM signal of the data line of the N + 1th row is obtained.
  • EM (N) is the duty cycle of the EM signal of the Nth data line
  • EM (N + 1) is the duty cycle of the EM signal of the N + 1th data line
  • R (N + 1) is the The resistance value of the Data line in the N + 1 row
  • R (N) is the resistance value of the Data line in the Nth row.
  • step S204 a control signal is output to the data line of the N + 1th line according to the duty ratio of the EM signal of the Data line of the N + 1th line.
  • Fig. 7 is a block diagram showing an OLED display device according to an exemplary embodiment. As shown in FIG. 7, the OLED display device includes:
  • An obtaining module 11 is configured to obtain a resistance value of an N-th data line; the N is an integer greater than or equal to 1;
  • a determining module 12 is configured to determine the EM signal of the N-th data line according to the resistance value of the N-th data line and the preset resistance value and the preset duty ratio of the light-emitting EM signal obtained by the obtaining module 11. Duty cycle
  • An output module 13 is configured to output a control signal to the N-th data line according to a duty ratio of the EM signal of the N-th data line determined by the determining module 12.
  • the determination module 12 includes: a first acquisition sub-module 121 and a first determination sub-module 122;
  • the first obtaining sub-module 121 is configured to obtain a resistance value of the M-th row of the Data line and a duty ratio of the EM signal of the M-th row; the M is an integer greater than or equal to 1, and the M and the Said N is different;
  • the first determining sub-module 122 is configured to, according to the resistance value of the M-th row of the Data line obtained by the first obtaining sub-module 121, the EM signal of the M-th row, and the The resistance value determines the duty cycle of the EM signal of the N-th Data line.
  • the first determining sub-module 122 includes: a second determining sub-module 1221.
  • the second determining submodule 1221 is configured to Determining a duty cycle of the EM signal of the N-th Data line;
  • the EM (N) is a duty cycle of the EM signal of the N-th row Data line
  • the EM (M) is a duty cycle of the EM signal of the M-th Data line
  • R ( M) is a resistance value of the M-th row Data line
  • R (N) is a resistance value of the N-th row Data line.
  • the obtaining module 11 includes: a second obtaining sub-module 123;
  • the second obtaining sub-module 123 is configured to Obtaining a resistance value of the N-th row of the Data line;
  • R (N) is the resistance value of the Nth row Data line
  • is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • S is the cross section of the Data line Area, where R is the initial resistance value of the Data line.
  • the first acquisition submodule 121 includes a third acquisition submodule 1211;
  • the third obtaining submodule 1211 is configured to Obtaining a resistance value of the M-th row of the Data line;
  • R (M) is the resistance value of the M-th row Data line
  • is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • S is the cross-section of the Data line Area, where R is the initial resistance value of the Data line.
  • an OLED display device including:
  • Memory for storing processor-executable instructions
  • the processor is configured to:
  • the N is an integer greater than or equal to 1;
  • a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • the above processors may also be configured as:
  • the determining the duty cycle of the EM signal of the N-th Data line according to the resistance value of the N-th Data line, the preset resistance value, and the preset duty of the light-emitting EM signal includes:
  • the M is an integer greater than or equal to 1, and the M is different from the N;
  • the duty cycle of the EM signal of the N-th Data line is determined according to the resistance value of the M-th Data line, the EM signal of the M-th line, and the resistance of the N-th Data line.
  • Air ratio including:
  • the EM (N) is the duty cycle of the EM signal of the N-th Data line
  • the EM (M) is the duty cycle of the EM signal of the M-th Data line
  • R ( M) is a resistance value of the M-th row Data line
  • R (N) is a resistance value of the N-th row Data line.
  • the obtaining the resistance value of the N-th data data line includes:
  • the acquiring the resistance value of the M-th Data line includes:
  • the R (N) is the resistance value of the N-th row of the Data line
  • the R (M) is the resistance value of the M-th row of the Data line
  • the ⁇ is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • the S is the cross-sectional area of the Data line
  • the R is the initial resistance value of the Data line.
  • Fig. 12 is a block diagram showing an OLED display device 80, which is suitable for a terminal device, according to an exemplary embodiment.
  • the device 80 may include one or more of the following components: a processing component 802, a memory 804, a power component 806, a multimedia component 808, an audio component 810, an input / output (I / O) interface 812, a sensor component 814, and a communication component 816 .
  • the processing component 802 generally controls the overall operation of the device 80, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the method described above.
  • the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components.
  • the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.
  • the memory 804 is configured to store various types of data to support operation at the device 80. Examples of such data include instructions for any application or method for operating on the device 80, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 804 may be implemented by any type of volatile or non-volatile storage devices, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), Programming read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM Programming read-only memory
  • PROM programmable read-only memory
  • ROM read-only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • the power component 806 provides power to various components of the device 80.
  • the power component 806 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 80.
  • the multimedia component 808 includes a screen that provides an output interface between the device 80 and a user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user.
  • the touch panel includes one or more touch sensors to sense touch, swipe, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or slide action, but also detect duration and pressure related to the touch or slide operation.
  • the multimedia component 808 includes a front camera and / or a rear camera. When the device 80 is in an operation mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 810 is configured to output and / or input audio signals.
  • the audio component 810 includes a microphone (MIC) that is configured to receive an external audio signal when the device 80 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in the memory 804 or transmitted via the communication component 816.
  • the audio component 810 further includes a speaker for outputting audio signals.
  • the I / O interface 812 provides an interface between the processing component 802 and a peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
  • the sensor component 814 includes one or more sensors for providing status assessment of various aspects of the device 80.
  • the sensor component 814 can detect the on / off state of the device 80 and the relative positioning of the components, such as the display and keypad of the device 80.
  • the sensor component 814 can also detect the change of the position of the device 80 or a component of the device 80 , The presence or absence of the user's contact with the device 80, the orientation or acceleration / deceleration of the device 80, and the temperature change of the device 80.
  • the sensor component 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • the sensor component 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 814 may further include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 816 is configured to facilitate wired or wireless communication between the device 80 and other devices.
  • the device 80 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof.
  • the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel.
  • the communication component 816 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra wideband
  • Bluetooth Bluetooth
  • the device 80 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor or other electronic component is implemented to perform the above method.
  • ASICs application-specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor or other electronic component is implemented to perform the above method.
  • a non-transitory computer-readable storage medium including instructions may be executed by the processor 820 of the device 80 to complete the foregoing method.
  • the non-transitory computer-readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
  • a non-transitory computer-readable storage medium when instructions in the storage medium are executed by a processor of the device 80, enable the device 80 to execute the foregoing OLED display method, the method includes:
  • the N is an integer greater than or equal to 1;
  • a control signal is output to the N-th Data line according to the duty ratio of the EM signal of the N-th Data line.
  • the determining the duty cycle of the EM signal of the N-th Data line according to the resistance value of the N-th Data line, the preset resistance value, and the preset duty of the light-emitting EM signal includes:
  • the M is an integer greater than or equal to 1, and the M is different from the N;
  • the duty cycle of the EM signal of the N-th Data line is determined according to the resistance value of the M-th Data line, the EM signal of the M-th line, and the resistance of the N-th Data line.
  • Air ratio including:
  • the EM (N) is a duty cycle of the EM signal of the N-th row Data line
  • the EM (M) is a duty cycle of the EM signal of the M-th Data line
  • R ( M) is a resistance value of the M-th row Data line
  • R (N) is a resistance value of the N-th row Data line.
  • the obtaining the resistance value of the N-th data data line includes:
  • the acquiring the resistance value of the M-th Data line includes:
  • the R (N) is the resistance value of the N-th row of the Data line
  • the R (M) is the resistance value of the M-th row of the Data line
  • the ⁇ is the resistivity of the Data line
  • L is the length of a single pixel Data line
  • the S is the cross-sectional area of the Data line
  • the R is the initial resistance value of the Data line.

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Abstract

本公开是OLED显示方法及装置。该方法包括:通过获取第N行数据Data线的电阻值;并根据第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定第N行Data线的EM信号的占空比;最后根据第N行Data线的EM信号的占空比向第N行Data线输出控制信号。其中,以预设电阻值和预设EM信号的占空比为基准,并基于每一行Data线的电阻值来确定每一行Data线的EM信号的占空比,使得每一行都有对应的EM信号的占空比,当使用各行Data线的EM信号对各行信号分别进行控制时,可以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。

Description

OLED显示方法及装置
本申请基于申请号为201811141298.2、申请日为2018年09月29日的中国专利申请提出,并要求该中国专利申请的优先权,该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及图像显示技术领域,尤其涉及OLED显示方法及装置。
背景技术
有机发光二极管(Organic Light-Emitting Diode,简称为:OLED)产品是电流型驱动元器件,在OLED的像素电路中包括Reset信号、Data信号和EM信号,Reset信号用于在低电平进行复位reset,避免帧与帧之间串行;Data信号用于对电容充电,以控制OLED发光;EM信号控制OLED发光,低电平有效,也即,在高电平时,OLED不发光,在低电平时,OLED发光。故可通过调节EM信号的占空比,控制OLED亮度。
发明内容
为克服相关技术中存在的问题,本公开实施例提供OLED显示方法及装置。所述技术方案如下:
根据本公开实施例的第一方面,提供一种OLED显示方法,包括:
获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
本公开的实施例提供的技术方案可以包括以下有益效果:通过获取第N行数据Data线的电阻值;并根据第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定第N行Data线的EM信号的占空比;最后根据第N行Data线的EM信号的占空比向第N行Data线输出控制信号。其中,以预设电阻值和预设EM信号的占空比为基准,并基于每一行Data线的电阻值来确定每一行Data线的EM信号的占空比,使得每一行都有对应的EM信号的占空比,当使用各行Data线的EM信号对各行信号分别进行控制时,可以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。
在一个实施例中,所述根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比,包括:
获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
根据所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电 阻值确定所述第N行Data线的EM信号的占空比。
在一个实施例中,所述根据所述第M行Data线的电阻值、所述第M行的EM信号的占空比和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比,包括:
根据
Figure PCTCN2018114429-appb-000001
确定所述第N行Data线的EM信号的占空比;
其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
在一个实施例中,所述获取第N行数据Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000002
获取所述第N行Data线的电阻值;
所述获取第M行Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000003
获取所述第M行Data线的电阻值;
其中,所述R(N)为所述第N行Data线的电阻值;所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
根据本公开实施例的第二方面,提供一种OLED显示装置,包括:
获取模块,用于获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
确定模块,用于根据所述获取模块获取的所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
输出模块,用于根据所述确定模块确定的所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
在一个实施例中,所述确定模块包括:第一获取子模块和第一确定子模块;
所述第一获取子模块,用于获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
所述第一确定子模块,用于根据所述第一获取子模块获取的所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
在一个实施例中,所述第一确定子模块包括:第二确定子模块;
所述第二确定子模块,用于根据
Figure PCTCN2018114429-appb-000004
确定所述第N行Data线的EM信号的占空比;
其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
在一个实施例中,所述获取模块包括:第二获取子模块;
所述第二获取子模块,用于根据
Figure PCTCN2018114429-appb-000005
获取所述第N行Data线的电阻值;
其中,所述R(N)为所述第N行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
在一个实施例中,所述第一获取子模块包括:第三获取子模块;
所述第三获取子模块,用于根据
Figure PCTCN2018114429-appb-000006
获取所述第M行Data线的电阻值;
其中,所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
根据本公开实施例的第三方面,提供一种OLED显示装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,所述处理器被配置为:
获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
根据本公开实施例的第四方面,提供一种计算机可读存储介质,其上存储有计算机指令,该指令被处理器执行时实现以下步骤:
获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
应当理解的是,以上的一般描述和后文的细节描述仅是示例性和解释性的,并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分,示出了符合本发明的实施例,并与说明书一起用于解释本发明的原理。
图1是根据一示例性实施例示出的OLED的像素电路的示意图。
图2是根据一示例性实施例示出的OLED的像素电路的工作时序图的示意图。
图3是根据一示例性实施例一示出的OLED显示方法的流程图。
图4是根据一示例性实施例示出的OLED显示方法中步骤S102的流程图。
图5是根据一示例性实施例二示出的OLED显示方法的流程图。
图6是根据一示例性实施例示出的一种OLED显示装置的电路示意图。
图7是根据一示例性实施例示出的一种OLED显示装置的框图。
图8是根据一示例性实施例示出的OLED显示装置中确定模块12的框图。
图9是根据一示例性实施例示出的OLED显示装置中第一确定子模块122的框图。
图10是根据一示例性实施例示出的OLED显示装置中获取模块11的框图。
图11是根据一示例性实施例示出的OLED显示装置中第一获取子模块121的框图。
图12是根据一示例性实施例示出的一种用于OLED显示装置80的框图。
具体实施方式
这里将详细地对示例性实施例进行说明,其示例表示在附图中。下面的描述涉及附图时,除非另有表示,不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反,它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。
图1是根据一示例性实施例示出的OLED的像素电路的示意图,如图1所示,该电路包括:有机发光二极管OLED、薄膜晶体管T1-T6和存储电容C;其中,OLED的阴极与T2的第一端相连接,T2的栅极和T1的栅极相连接,T4的栅极、C的第一端、T5的第一端和T6的第一端相连接;T4的第二端和T6的第二端相连接;T4的第一端、T3的第一端和T1的第一端相连接;T1的第二端与C的第二端相连接。
其中,T1、T2和OLED构成基本的OLED驱动关系,而T3-T6可分别由其各自的控制端信号控制处于开启或者关闭的状态。
进一步的,为了实现该电路的功能,需要在该电路中施加必要的偏压,包括:
第一驱动电压线,上面施加有正向工作偏压EL VDD,与T1的第二端相连接,第二驱动电压线,上面施加有负向工作偏压EL VSS,与OLED的阳极相连;
数据写入电压线,上面施加有设定该电路中OLED如何发光的数据写入电压信号(Data信号)V Data,与T3的第二端(可以为源极)相连;
初始化电压线,上面施加有恒定的初始化电压信号V initial,与T5的第二端(可以为源极)相连接。
而且,对于每个薄膜晶体管开启或关闭的控制,这里采用三条信号线分别进行控制:
写入开关信号线,上面加载有写入开关信号电压信号V Gate,分别与T3的栅极和T6的栅 极相连;
复位开关信号线,上面加载有复位开关信号电压信号(Reset信号)V Ref,与T5的栅极相连;
驱动开关信号线,上面加载有驱动开关信号电压信号(EM信号)V Emission,与T1的栅极和T2的栅极相连。
当然,所有偏置电压的电位零点都连于同一个公共端上,所有信号电压的电位零点也都连于同一个公共端上。
参见该电路的工作时序图如图2,V Gate、V Ref、V Emission、V Data、C分别代表写入开关信号、复位开关信号、驱动开关信号、数据写入电压线和电容充放电信号。
具体来说,当V Ref为低电平、V Gate为高电平时,晶体管T5开启,此时处于复位阶段;
当V Ref为高电平、V Gate为高电平且V Data也为高电平时,属于数据写入阶段,对电容C进行充电;
当V Ref为高电平、V Gate为低电平时,属于发光阶段,此时C进行放电操作,以使OLED发光。
通过上述的分析可知,由于OLED是电流型驱动元器件,由于OLED的显示板(英文:panel)走线上的电阻会发生变化,panel远端的电阻会大于panel近端的电阻,由于panel走线上电阻的增加,从而电流在panel的走线上会产生压降,相应的输入至OLED的电流会降低,从而使得OLED产品的亮度均一性较差。
本公开中,通过获取第N行数据Data线的电阻值;并根据第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定第N行Data线的EM信号的占空比;最后根据第N行Data线的EM信号的占空比向第N行Data线输出控制信号。其中,以预设电阻值和预设EM信号的占空比为基准,并基于每一行Data线的电阻值来确定每一行Data线的EM信号的占空比,使得每一行都有对应的EM信号的占空比,当使用各行Data线的EM信号对各行信号分别进行控制时,可以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。
图3是根据一示例性实施例一示出的OLED显示方法的流程图,如图3所示,该方法包括以下步骤S101-S103:
在步骤S101中,获取第N行数据Data线的电阻值;N为大于等于1的整数。
在步骤S102中,根据第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定第N行Data线的EM信号的占空比。
在步骤S103中,根据第N行Data线的EM信号的占空比向第N行Data线输出控制信 号。
由于OLED产品在显示过程中的不均一性主要的线降引起的,而最主要的线降是Data线上的电阻增加引起的,远离Data线输入端的电阻大于靠近Data线输入端的电阻,由于Data线上电阻增加,而每行Data线上的EM信号的占空比却相同,从而使得OLED电流会随着Data线的长度的增加而降低,进而造成了OLED显示亮度的降低,从而导致OLED产品在显示过程中的不均一性。
本公开中为了使得OLED产品在显示过程中的亮度均一,会对每一行Data线的EM信号分别进行控制,也即每一行Data线的EM信号是独立的,从而可以有效避免Data线上电阻变化而引起的OLED产品在显示过程中的亮度不均一的问题。
由于每一行Data线的EM信号是独立的,但是Data线上电阻变化是无法改变,因此,需要基于Data线的电阻值来确定每一行Data线的EM信号,以避免Data线的电阻值的变化对OLED电流产生的影响。
可以先预设一电阻值和一EM信号,进而以预设电阻值和预设EM信号的占空比为基准,并基于每一行Data线的电阻值来确定每一行Data线的EM信号的占空比,从而使得每一行Data线的EM信号的占空比是基于该行的Data线的电阻值的。
本公开中,通过获取第N行数据Data线的电阻值;并根据第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定第N行Data线的EM信号的占空比;最后根据第N行Data线的EM信号的占空比向第N行Data线输出控制信号。其中,以预设电阻值和预设EM信号的占空比为基准,并基于每一行Data线的电阻值来确定每一行Data线的EM信号的占空比,使得每一行都有对应的EM信号的占空比,当使用各行Data线的EM信号对各行信号分别进行控制时,可以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。
由于每一个OLED产品都有自己的特性,当使用预设电阻值和预设发光EM信号的占空比时,可能并不能满足当前OLED产品的需求,从而使得最终显示的效果并不能达到最优效果,因此,如图4所示,上述步骤S102可以实施为以下步骤S1021-步骤S1022:
在步骤S1021中,获取第M行Data线的电阻值和第M行的EM信号的占空比;M为大于等于1的整数,且M与N不同。
在步骤S1022中,根据第M行Data线的电阻值、第M行的EM信号和第N行Data线的电阻值确定第N行Data线的EM信号的占空比。
可以在OLED产品的各行Data线中确定以某一行的Data线的电阻值和该行Data线的EM信号的占空比作为上述的预设电阻值和预设发光EM信号的占空比,从而基于该行Data 线的电阻值和该行Data线的EM信号的占空比调整其他行的Data线的电阻值和EM信号。
由于是基于该OLED产品的某一行的Data线的电阻值和该行Data线的EM信号的占空比来调整其他行的Data线的电阻值和EM信号,从而使得调整后的其他行的Data线的电阻值和EM信号更加适合当前的OLED产品,以保证当前的OLED产品显示的均一性。
本实施例不对第M行Data线为哪一行加以限定,只要与第N行不同即可。
例如:可以根据第4行Data线的电阻值和EM信号来确定其他行Data线的EM信号的占空比;也可以根据第1行Data线的电阻值和EM信号来确定其他行Data线的EM信号的占空比。
示例的,可以根据第N-1行Data线的电阻值和EM信号来确定第N行Data线的EM信号的占空比,此时,N为大于等于2的整数,M为N-1。
例如:根据第1行Data线的电阻值和EM信号来确定第2行Data线的EM信号的占空比;根据第2行Data线的电阻值和EM信号来确定第3行Data线的EM信号的占空比;根据第3行Data线的电阻值和EM信号来确定第4行Data线的EM信号的占空比,以此类推。
本公开的实施例提供的技术方案可以包括以下有益效果:获取第M行Data线的电阻值和第M行的EM信号的占空比;继而,根据第M行Data线的电阻值、第M行的EM信号和第N行Data线的电阻值确定第N行Data线的EM信号的占空比,从而使得调整后的其他行的Data线的电阻值和EM信号更加适合当前的OLED产品,以保证当前的OLED产品显示的均一性。
在一个实施例中,根据第M行Data线的电阻值、第M行的EM信号的占空比和第N行Data线的电阻值确定第N行Data线的EM信号的占空比,包括:
根据
Figure PCTCN2018114429-appb-000007
确定第N行Data线的EM信号的占空比;
其中,EM(N)为第N行Data线的EM信号的占空比,EM(M)为第M行的EM信号的占空比,R(M)为第M行Data线的电阻值,R(N)为第N行Data线的电阻值。
如果要实现第M行和第N行有相同的OLED发光电流,可以通过对EM信号的补偿来实施,也即根据第M行Data线的电阻值、第M行的EM信号的占空比和第N行Data线的电阻值确定第N行Data线的EM信号的占空比。
例如:根据第2行Data线的电阻值、第2行的EM信号的占空比和第3行Data线的电阻值确定第3行Data线的EM信号的占空比可以为:
根据
Figure PCTCN2018114429-appb-000008
确定第3行Data线的EM信号的占空比。
其中,EM(3)为第3行Data线的EM信号的占空比,EM(2)为第2行的EM信号的占空 比,R(3)为第3行Data线的电阻值,R(2)为第2行Data线的电阻值。
本公开的实施例提供的技术方案可以包括以下有益效果:以第M行Data线的电阻值和EM信号的占空比为基准,并基于第N行Data线的电阻值来确定第N行Data线的EM信号的占空比,使得第N行有对应的EM信号的占空比,当使用各行Data线的EM信号对各行信号分别进行控制时,可以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。
在一个实施例中,由于,获取第N行数据Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000009
获取第N行Data线的电阻值。
获取第M行Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000010
获取第M行Data线的电阻值。
其中,R(N)为第N行Data线的电阻值;R(M)为第M行Data线的电阻值;ρ为Data线的电阻率;L为单像素Data线的长度;S是Data线的横截面积,R为Data线的初始电阻值。
R为Data线的初始电阻值,由于panel尺寸和分辨率不同,R会有不同的取值。
在计算当前就介质的电阻值时,通常会使用
Figure PCTCN2018114429-appb-000011
来计算,其中,R为当介质的电阻值、S为当前介质的截面积、L为当前介质的长度、ρ为当前介质的电阻率。
基于上述公式,本公开中使用
Figure PCTCN2018114429-appb-000012
获取第N行Data线的电阻值,以及使用
Figure PCTCN2018114429-appb-000013
获取第M行Data线的电阻值。
本公开的实施例提供的技术方案可以包括以下有益效果:通过获取当前行Data线的电阻值,从而使用当前行Data线的电阻值来确定EM信号的真空比,以使得每一行Data线对应的OLED的发光亮度趋于一致性,有效提升了OLED产品的亮度均一性。
图5是根据一示例性实施例二示出的OLED显示方法的流程图,图6是根据一示例性实施例示出的一种OLED显示装置的电路示意图,图6中的各个器件:阵列测试(英文:Array Test),覆晶薄膜(Chip On Film,简称为:COF)集成电路板(integrated circuit,简称为:IC)板(应为:Pad),GOA(英文:gate on glass),EL VDD为上述实施例所述的第一驱动电压线上施加的正向工作偏压,EL VSS为上述实施例所述的第二驱动电压线上施加的负向工作偏压;如图5所示,该方法包括以下步骤S201-S204:
在步骤S201中:获取第N行数据Data线的电阻值和EM信号的占空比。
根据
Figure PCTCN2018114429-appb-000014
获取第N行Data线的电阻值。
其中,R(N)为第N行Data线的电阻值;ρ为Data线的电阻率;L为单像素Data线的长 度;S是Data线的横截面积,R为Data线的初始电阻值。
在步骤S202中:获取第N+1行数据Data线的电阻值。
根据
Figure PCTCN2018114429-appb-000015
获取第N+1行Data线的电阻值。
其中,R(N+1)为第N+1行Data线的电阻值;ρ为Data线的电阻率;L为单像素Data线的长度;S是Data线的横截面积,R为Data线的初始电阻值。
在步骤S203中:获取第N+1行Data线的EM信号的占空比。
根据确定
Figure PCTCN2018114429-appb-000016
获取第N+1行Data线的EM信号的占空比EM(N+1);
其中,EM(N)为第N行Data线的EM信号的占空比,EM(N+1)为第N+1行Data线的EM信号的占空比,R(N+1)为第N+1行Data线的电阻值,R(N)为第N行Data线的电阻值。
在步骤S204中:根据第N+1行Data线的EM信号的占空比向第N+1行Data线输出控制信号。
下述为本公开装置实施例,可以用于执行本公开方法实施例。
图7是根据一示例性实施例示出的一种OLED显示装置的框图。如图7所示,该OLED显示装置包括:
获取模块11,用于获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
确定模块12,用于根据所述获取模块11获取的所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
输出模块13,用于根据所述确定模块12确定的所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
在一个实施例中,如图8所示,所述确定模块12包括:第一获取子模块121和第一确定子模块122;
所述第一获取子模块121,用于获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
所述第一确定子模块122,用于根据所述第一获取子模块121获取的所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
在一个实施例中,如图9所示,所述第一确定子模块122包括:第二确定子模块1221;
所述第二确定子模块1221,用于根据
Figure PCTCN2018114429-appb-000017
确定所述第N行Data线的EM信号的占空比;
其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
在一个实施例中,如图10所示,所述获取模块11包括:第二获取子模块123;
所述第二获取子模块123,用于根据
Figure PCTCN2018114429-appb-000018
获取所述第N行Data线的电阻值;
其中,所述R(N)为所述第N行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
在一个实施例中,如图11所示,所述第一获取子模块121包括第三获取子模块1211;
所述第三获取子模块1211,用于根据
Figure PCTCN2018114429-appb-000019
获取所述第M行Data线的电阻值;
其中,所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
根据本公开实施例的第三方面,提供一种OLED显示装置,包括:
处理器;
用于存储处理器可执行指令的存储器;
其中,处理器被配置为:
获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
上述处理器还可被配置为:
所述根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比,包括:
获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
根据所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
所述根据所述第M行Data线的电阻值、所述第M行的EM信号的占空比和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比,包括:
根据
Figure PCTCN2018114429-appb-000020
确定所述第N行Data线的EM信号的占空比;
其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M 行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
所述获取第N行数据Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000021
获取所述第N行Data线的电阻值;
所述获取第M行Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000022
获取所述第M行Data线的电阻值;
其中,所述R(N)为所述第N行Data线的电阻值;所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
图12是根据一示例性实施例示出的一种用于OLED显示装置80的框图,该装置适用于终端设备。
装置80可以包括以下一个或多个组件:处理组件802,存储器804,电源组件806,多媒体组件808,音频组件810,输入/输出(I/O)的接口812,传感器组件814,以及通信组件816。
处理组件802通常控制装置80的整体操作,诸如与显示,电话呼叫,数据通信,相机操作和记录操作相关联的操作。处理组件802可以包括一个或多个处理器820来执行指令,以完成上述的方法的全部或部分步骤。此外,处理组件802可以包括一个或多个模块,便于处理组件802和其他组件之间的交互。例如,处理组件802可以包括多媒体模块,以方便多媒体组件808和处理组件802之间的交互。
存储器804被配置为存储各种类型的数据以支持在装置80的操作。这些数据的示例包括用于在装置80上操作的任何应用程序或方法的指令,联系人数据,电话簿数据,消息,图片,视频等。存储器804可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,如静态随机存取存储器(SRAM),电可擦除可编程只读存储器(EEPROM),可擦除可编程只读存储器(EPROM),可编程只读存储器(PROM),只读存储器(ROM),磁存储器,快闪存储器,磁盘或光盘。
电源组件806为装置80的各种组件提供电力。电源组件806可以包括电源管理系统,一个或多个电源,及其他与为装置80生成、管理和分配电力相关联的组件。
多媒体组件808包括在所述装置80和用户之间的提供一个输出接口的屏幕。在一些实施 例中,屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板,屏幕可以被实现为触摸屏,以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界,而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中,多媒体组件808包括一个前置摄像头和/或后置摄像头。当装置80处于操作模式,如拍摄模式或视频模式时,前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件810被配置为输出和/或输入音频信号。例如,音频组件810包括一个麦克风(MIC),当装置80处于操作模式,如呼叫模式、记录模式和语音识别模式时,麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器804或经由通信组件816发送。在一些实施例中,音频组件810还包括一个扬声器,用于输出音频信号。
I/O接口812为处理组件802和外围接口模块之间提供接口,上述外围接口模块可以是键盘,点击轮,按钮等。这些按钮可包括但不限于:主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件814包括一个或多个传感器,用于为装置80提供各个方面的状态评估。例如,传感器组件814可以检测到装置80的打开/关闭状态,组件的相对定位,例如所述组件为装置80的显示器和小键盘,传感器组件814还可以检测装置80或装置80一个组件的位置改变,用户与装置80接触的存在或不存在,装置80方位或加速/减速和装置80的温度变化。传感器组件814可以包括接近传感器,被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件814还可以包括光传感器,如CMOS或CCD图像传感器,用于在成像应用中使用。在一些实施例中,该传感器组件814还可以包括加速度传感器,陀螺仪传感器,磁传感器,压力传感器或温度传感器。
通信组件816被配置为便于装置80和其他设备之间有线或无线方式的通信。装置80可以接入基于通信标准的无线网络,如WiFi,2G或3G,或它们的组合。在一个示例性实施例中,通信组件816经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中,所述通信组件816还包括近场通信(NFC)模块,以促进短程通信。例如,在NFC模块可基于射频识别(RFID)技术,红外数据协会(IrDA)技术,超宽带(UWB)技术,蓝牙(BT)技术和其他技术来实现。
在示例性实施例中,装置80可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子组件实现,用于执行上述方法。
在示例性实施例中,还提供了一种包括指令的非临时性计算机可读存储介质,例如包括指令的存储器804,上述指令可由装置80的处理器820执行以完成上述方法。例如,所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
一种非临时性计算机可读存储介质,当所述存储介质中的指令由装置80的处理器执行时,使得装置80能够执行上述的OLED显示方法,所述方法包括:
获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
所述根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比,包括:
获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
根据所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
所述根据所述第M行Data线的电阻值、所述第M行的EM信号的占空比和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比,包括:
根据
Figure PCTCN2018114429-appb-000023
确定所述第N行Data线的EM信号的占空比;
其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
所述获取第N行数据Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000024
获取所述第N行Data线的电阻值;
所述获取第M行Data线的电阻值,包括:
根据
Figure PCTCN2018114429-appb-000025
获取所述第M行Data线的电阻值;
其中,所述R(N)为所述第N行Data线的电阻值;所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
本领域技术人员在考虑说明书及实践这里公开的公开后,将容易想到本公开的其它实施 方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化,这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的,本公开的真正范围和精神由下面的权利要求指出。
应当理解的是,本发明并不局限于上面已经描述并在附图中示出的精确结构,并且可以在不脱离其范围进行各种修改和改变。本发明的范围仅由所附的权利要求来限制。

Claims (10)

  1. 一种OLED显示方法,其特征在于,包括:
    获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
    根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
    根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
  2. 根据权利要求1所述的方法,其特征在于,所述根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比,包括:
    获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
    根据所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
  3. 根据权利要求2所述的方法,其特征在于,所述根据所述第M行Data线的电阻值、所述第M行的EM信号的占空比和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比,包括:
    根据
    Figure PCTCN2018114429-appb-100001
    确定所述第N行Data线的EM信号的占空比;
    其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
  4. 根据权利要求2或3所述的方法,其特征在于,所述获取第N行数据Data线的电阻值,包括:
    根据
    Figure PCTCN2018114429-appb-100002
    获取所述第N行Data线的电阻值;
    所述获取第M行Data线的电阻值,包括:
    根据
    Figure PCTCN2018114429-appb-100003
    获取所述第M行Data线的电阻值;
    其中,所述R(N)为所述第N行Data线的电阻值;所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
  5. 一种OLED显示装置,其特征在于,包括:
    获取模块,用于获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
    确定模块,用于根据所述获取模块获取的所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
    输出模块,用于根据所述确定模块确定的所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
  6. 根据权利要求5所述的装置,其特征在于,所述确定模块包括:第一获取子模块和第一确定子模块;
    所述第一获取子模块,用于获取第M行Data线的电阻值和所述第M行的EM信号的占空比;所述M为大于等于1的整数,且所述M与所述N不同;
    所述第一确定子模块,用于根据所述第一获取子模块获取的所述第M行Data线的电阻值、所述第M行的EM信号和所述第N行Data线的电阻值确定所述第N行Data线的EM信号的占空比。
  7. 根据权利要求6所述的装置,其特征在于,所述第一确定子模块包括:第二确定子模块;
    所述第二确定子模块,用于根据
    Figure PCTCN2018114429-appb-100004
    确定所述第N行Data线的EM信号的占空比;
    其中,所述EM(N)为所述第N行Data线的EM信号的占空比,所述EM(M)为所述第M行Data线的EM信号的占空比,所述R(M)为所述第M行Data线的电阻值,所述R(N)为所述第N行Data线的电阻值。
  8. 根据权利要求6或7所述的装置,其特征在于,所述获取模块包括:第二获取子模块,所述第一获取子模块包括:第三获取子模块;
    所述第二获取子模块,用于根据
    Figure PCTCN2018114429-appb-100005
    获取所述第N行Data线的电阻值;
    所述第三获取子模块,用于根据
    Figure PCTCN2018114429-appb-100006
    获取所述第M行Data线的电阻值;
    其中,所述R(N)为所述第N行Data线的电阻值;所述R(M)为所述第M行Data线的电阻值;所述ρ为Data线的电阻率;所述L为单像素Data线的长度;所述S是Data线的横截面积,所述R为Data线的初始电阻值。
  9. 一种OLED显示装置,其特征在于,包括:
    处理器;
    用于存储处理器可执行指令的存储器;
    其中,所述处理器被配置为:
    获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
    根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
    根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
  10. 一种计算机可读存储介质,其上存储有计算机指令,其特征在于,该指令被处理器执行时实现以下步骤:
    获取第N行数据Data线的电阻值;所述N为大于等于1的整数;
    根据所述第N行Data线的电阻值、预设电阻值和预设发光EM信号的占空比确定所述第N行Data线的EM信号的占空比;
    根据所述第N行Data线的EM信号的占空比向所述第N行Data线输出控制信号。
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