WO2019100486A1 - Amoled显示器的补偿系统及补偿方法 - Google Patents

Amoled显示器的补偿系统及补偿方法 Download PDF

Info

Publication number
WO2019100486A1
WO2019100486A1 PCT/CN2017/117305 CN2017117305W WO2019100486A1 WO 2019100486 A1 WO2019100486 A1 WO 2019100486A1 CN 2017117305 W CN2017117305 W CN 2017117305W WO 2019100486 A1 WO2019100486 A1 WO 2019100486A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
voltage
compensation
voltage data
tie
Prior art date
Application number
PCT/CN2017/117305
Other languages
English (en)
French (fr)
Inventor
黄泰钧
曾玉超
Original Assignee
深圳市华星光电半导体显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US15/749,109 priority Critical patent/US10249245B1/en
Publication of WO2019100486A1 publication Critical patent/WO2019100486A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a compensation system and a compensation method for an AMOLED display.
  • OLED Organic Light Emitting Display
  • OLED Organic Light Emitting Display
  • the OLED display device can be divided into two types: passive matrix OLED (PMOLED) and active matrix OLED (AMOLED), namely direct addressing and thin film transistor (Thin Film Transistor, according to the driving method). TFT) matrix addressing two types.
  • the AMOLED has pixels arranged in an array, belongs to an active display type, has high luminous efficiency, and is generally used as a high-definition large-sized display device.
  • the OLED is a current driving device.
  • the organic light emitting diode emits light, and the luminance of the light is determined by the current flowing through the organic light emitting diode itself.
  • Most existing integrated circuits (ICs) only transmit voltage signals, so the pixel driving circuit of AMOLED needs to complete the task of converting a voltage signal into a current signal.
  • an AMOLED pixel driving circuit of a conventional 2T1C structure includes a first thin film transistor T1, a second thin film transistor T2, a capacitor C1, and an organic light emitting diode D1.
  • the gate of the first thin film transistor T1 is connected. Scanning signal Scan, the source is connected to the data signal Data, the drain is electrically connected to the gate of the second thin film transistor T2; the drain of the second thin film transistor T2 is connected to the power supply high potential OVDD, and the source is electrically connected to the organic light
  • the anode of the diode D1 is connected to the power supply low potential OVSS; the two ends of the capacitor C1 are electrically connected to the gate and the source of the second thin film transistor T2, respectively.
  • the second thin film transistor T2 is a driving thin film transistor.
  • the data signal Data is written into the gate of the second thin film transistor T2, and a current flows through the second thin film transistor T2 and the organic light emitting diode D1 to cause the organic light emitting diode D1 to emit light.
  • the driving thin film transistor operates in the saturation region, the current flowing through the driving thin film transistor is:
  • Ids k(Vgs-Vth) 2 ; where Ids is the current flowing through the driving thin film transistor, k is the intrinsic conduction factor of the driving thin film transistor, Vgs is the gate-to-source voltage difference of the driving thin film transistor, and Vth is the driving thin film transistor Threshold voltage
  • the brightness formula of the organic light emitting diode is:
  • L ⁇ ⁇ I oled ; wherein L is the luminance of the organic light emitting diode, ⁇ is the luminous coefficient of the organic light emitting diode, and I oled is the current flowing through the organic light emitting diode;
  • the threshold voltage of the driving thin film transistor in each pixel is different from the intrinsic conductive factor and the illuminating coefficient of the organic light emitting diode, the brightness of the AMOLED display may be even if the voltage difference between the gate and the source of the driving thin film transistor is the same. Presenting unevenness. Therefore, it is necessary to compensate the AMOLED display to achieve a better display effect.
  • the object of the present invention is to provide a compensation system for an AMOLED display, which can compensate for the uniformity of the AMOLED and reduce the amount of data required for compensation.
  • Another object of the present invention is to provide a compensation method for an AMOLED display, which can compensate for the uniformity of the AMOLED, and the amount of data required for compensation is small.
  • the present invention first provides a compensation system for an AMOLED display, comprising a gray scale data conversion unit, a compensation unit electrically connected to the gray scale data conversion unit, and a compensation data storage unit electrically connected to the compensation unit, and a voltage data conversion unit electrically connected to the compensation unit;
  • the voltage data conversion unit is electrically connected to the source driver of the AMOLED display;
  • the compensation data storage unit stores the compensation voltage data and the compensation proportional coefficient;
  • the gray scale data conversion unit is configured to input initial gray scale data, convert the initial gray scale data into initial driving voltage data corresponding to the initial gray scale data, and transmit the data to the compensation unit;
  • the compensation unit is configured to compensate the initial driving voltage data transmitted by the gray-scale data conversion unit by using the compensation proportional coefficient and the compensation voltage data in the compensation data storage unit, and output the compensation driving voltage data to the voltage data conversion unit;
  • the voltage data conversion unit is configured to convert the compensation driving voltage data transmitted by the compensation unit into compensation gray scale data and output to a source driver of the AMOLED display.
  • the gray scale data conversion unit and the voltage data conversion unit respectively store a plurality of tie point gray scales and a plurality of tie point voltage data respectively corresponding to the plurality of tie point gray scales;
  • the gray scale data conversion unit After the gray scale data conversion unit receives the initial gray scale data, when the initial gray scale data is identical to one of the plurality of tie point gray scales, the gray scale data conversion unit will have the same tie point gray scale as the initial gray scale data.
  • the corresponding tie point voltage data is output as the initial drive voltage data.
  • the gray scale data conversion unit sets the two tie points adjacent to the initial gray scale data.
  • the two tie point voltage data corresponding to the gray scale are linearly interpolated, and the calculation is obtained.
  • the initial driving voltage data corresponding to the initial gray scale data is output and output;
  • the voltage data conversion unit After the voltage data conversion unit receives the compensation driving voltage data transmitted by the compensation unit, when the compensation driving voltage data is identical to one of the plurality of binding point voltage data, the voltage data conversion unit will have the same binding point as the compensation driving voltage data.
  • the gradation gray level corresponding to the voltage data is output as the compensation gray scale data to the source driver of the AMOLED display.
  • the compensation driving voltage data and the plurality of binding point voltage data are different, the voltage data conversion unit and the compensation driving voltage
  • the two tie point gray levels corresponding to the two adjacent tie voltage data of the data are linearly interpolated, and the compensated gray scale data corresponding to the compensated drive voltage data is calculated and output to the source driver of the AMOLED display.
  • the gray scale data conversion unit and the voltage data conversion unit respectively store 9 tie point gray scales and 9 tie point voltage data corresponding to 9 tie point gray scales; the 9 tie point gray levels respectively of 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 / 4,2 N ⁇ 1/8, 0, N is a positive integer, the bit width of the initial gray scale data is Nbit, and the nine tie point voltage data are respectively the first tie voltage data and the second tie voltage that are sequentially decreased. Data, third tie point voltage data, fourth tie point voltage data, fifth tie point voltage data, sixth tie point voltage data, seventh tie point voltage data, eighth tie point voltage data, ninth tie point voltage data .
  • the first binding point voltage data, the second binding point voltage data, the third binding point voltage data, the fourth binding point voltage data, the fifth binding point voltage data, the sixth binding point voltage data, and the seventh binding point voltage data eighth tie point voltage data, voltage data points are tied to the ninth through the 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1/2 , a first tie point voltage, the second tie-point voltage, a third tie-point voltage, the fourth voltage point tied to 2 N ⁇ 3 / 8,2 N ⁇ 1 / 4,2 N ⁇ 1 / 8,0 corresponding to the first
  • the five tie point voltage, the sixth tie point voltage, the seventh tie point voltage, the eighth tie point voltage, and the ninth tie point voltage are encoded, the first tie point voltage, the second tie point voltage, the third tie point voltage,
  • the compensation voltage data is obtained by encoding a preset compensation voltage, and the first binding point voltage, the second binding point voltage, the third binding point voltage, the fourth binding point voltage, the fifth binding point voltage, and the sixth binding
  • the step size of the point voltage, the seventh tie voltage, the eighth tie voltage, and the ninth tie voltage is equal to the step size for encoding the preset compensation voltage.
  • the coding range of the preset compensation voltage is -Vref2-Vref2, the coding step is Vref2/2 m-1 , the coding bit width is mbit signed complement, and Vref2 is a preset second reference voltage.
  • m is a positive integer.
  • the compensation unit uses the compensation proportional coefficient and the compensation voltage data to transmit the gray scale data conversion unit When the initial driving voltage data is compensated, the compensation voltage data is complement-added to the initial driving voltage data.
  • the present invention also provides a compensation method for an AMOLED display, which is applied to the compensation system of the AMOLED display described above, and includes the following steps:
  • Step S1 input initial gray scale data to the gray scale data conversion unit, the gray scale data conversion unit converts the initial gray scale data into initial driving voltage data corresponding to the initial gray scale data, and transmits the data to the compensation unit;
  • Step S2 the compensation unit compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data in the compensation data storage unit, and outputs the compensation driving voltage data to the voltage data conversion unit;
  • Step S3 the voltage data conversion unit converts the compensation driving voltage data into compensation gray scale data and outputs it to the source driver of the AMOLED display.
  • the invention also provides a compensation system for an AMOLED display, comprising a gray scale data conversion unit, a compensation unit electrically connected to the gray scale data conversion unit, a compensation data storage unit electrically connected to the compensation unit, and an electrical connection with the compensation unit.
  • the voltage data conversion unit is electrically connected to the source driver of the AMOLED display; the compensation data storage unit stores the compensation voltage data and the compensation proportional coefficient;
  • the gray scale data conversion unit is configured to input initial gray scale data, convert the initial gray scale data into initial driving voltage data corresponding to the initial gray scale data, and transmit the data to the compensation unit;
  • the compensation unit is configured to compensate the initial driving voltage data transmitted by the gray-scale data conversion unit by using the compensation proportional coefficient and the compensation voltage data in the compensation data storage unit, and output the compensation driving voltage data to the voltage data conversion unit;
  • the voltage data conversion unit is configured to convert the compensation driving voltage data transmitted by the compensation unit into compensation gray scale data and output the source driver to the AMOLED display;
  • the gray-scale data conversion unit and the voltage data conversion unit respectively store a plurality of tie point gray levels and a plurality of tie point voltage data respectively corresponding to the plurality of tie point gray levels;
  • the gray scale data conversion unit After the gray scale data conversion unit receives the initial gray scale data, when the initial gray scale data is identical to one of the plurality of tie point gray scales, the gray scale data conversion unit will have the same tie point gray scale as the initial gray scale data. The corresponding tie point voltage data is output as the initial drive voltage data. When the initial gray scale data is different from the plurality of tie point gray levels, the gray scale data conversion unit sets the two tie points adjacent to the initial gray scale data. The two pinch point voltage data corresponding to the gray level are linearly interpolated, and the initial driving voltage data corresponding to the initial gray level data is calculated and output;
  • the voltage data conversion unit After the voltage data conversion unit receives the compensation driving voltage data transmitted by the compensation unit, when the compensation driving voltage data is the same as one of the plurality of binding point voltage data, the voltage data conversion sheet The binding point gray scale corresponding to the same binding point voltage data of the compensation driving voltage data is output as the compensation gray scale data to the source driver of the AMOLED display, and the compensation driving voltage data and the plurality of binding point voltage data are not in phase.
  • the voltage data conversion unit linearly interpolates the two tie point gray levels corresponding to the two tie point voltage data adjacent to the compensation drive voltage data, and calculates the compensated gray scale data corresponding to the compensated drive voltage data and outputs the same to the compensated gray scale data.
  • the gray-scale data conversion unit and the voltage data conversion unit respectively store 9 binding point gray levels and 9 binding point voltage data corresponding to 9 binding point gray levels; the 9 binding points gray respectively order 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1/4, 2 N ⁇ 1/8, 0, N is a positive integer, the bit width of the initial gray scale data is Nbit, and the voltage data of the nine tie points are respectively the first tie voltage data and the second tie that are sequentially decreased.
  • the first binding point voltage data, the second binding point voltage data, the third binding point voltage data, the fourth binding point voltage data, the fifth binding point voltage data, the sixth binding point voltage data, and the seventh binding point voltage data, voltage data point tied to the eighth, ninth voltage data points are tied by the 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 / 4,2 N ⁇ 1 / 8,0 tie point corresponding to a first voltage, the second tie-point voltage, a third tie-point voltage, the fourth voltage tie point
  • the fifth tie point voltage, the sixth tie point voltage, the seventh tie point voltage, the eighth tie point voltage, and the ninth tie point voltage are encoded, the first tie point voltage, the second tie point voltage, and the third tie point.
  • the encoding range of the voltage, the fourth binding voltage, the fifth binding voltage, the sixth binding voltage, the seventh binding voltage, the eighth binding voltage, and the ninth binding voltage is 0-Vref1, and the encoding step is Vref1.
  • the coded bit width is an nbit unsigned number
  • Vref1 is a preset first reference voltage
  • n is a positive integer
  • the compensation voltage data is obtained by encoding a preset compensation voltage, and the first binding point voltage, the second binding point voltage, the third binding point voltage, the fourth binding point voltage, the fifth binding point voltage, and the first
  • the step size of the six tie point voltage, the seventh tie point voltage, the eighth tie point voltage, and the ninth tie point voltage is equal to the step size for encoding the preset compensation voltage.
  • the invention provides a compensation system for an AMOLED display, which inputs initial gray scale data into a gray scale data conversion unit, and converts the initial gray scale data into a corresponding gray scale data through a gray scale data conversion unit.
  • the initial driving voltage data is transmitted to the compensation unit, and the compensation unit compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data in the compensation data storage unit, and outputs the compensation driving voltage data to the voltage data conversion unit, and the voltage data conversion
  • the unit then converts the compensated driving voltage data into compensated gray scale data and outputs it to the source driver of the AMOLED display, by compensating the initial driving voltage data.
  • the method realizes the compensation of the uniformity of the AMOLED display, and can reduce the amount of data required for compensation.
  • the compensation method of the AMOLED display provided by the invention is applied to the compensation system of the above AMOLED display, which can realize the compensation of the uniformity of the AMOLED, and the amount of data required for compensation is small.
  • FIG. 1 is a circuit diagram of a conventional 2T1C structure AMOLED pixel driving circuit
  • FIG. 2 is a schematic structural view of a compensation system of an AMOLED display of the present invention.
  • FIG. 3 is a flow chart of a compensation method of an AMOLED display of the present invention.
  • step S1 of a compensation method of an AMOLED display of the present invention is a schematic diagram of step S1 of a compensation method of an AMOLED display of the present invention
  • step S3 is a schematic diagram of step S3 of the compensation method of the AMOLED display of the present invention.
  • FIG. 6 is a schematic diagram of voltage binding of a tie point in a compensation method of an AMOLED display according to the present invention.
  • FIG. 7 is a schematic diagram of compensation voltage coding in a compensation method of an AMOLED display of the present invention.
  • the present invention provides a compensation system for an AMOLED display, including a gray scale data conversion unit 100 , a compensation unit 200 electrically connected to the gray scale data conversion unit 100 , and a compensation unit.
  • 200 electrically connected compensation data storage unit 300, voltage data conversion unit 400 electrically connected to the compensation unit 200; voltage data conversion unit 400 is electrically connected to the source driver 500 of the AMOLED display; and the compensation data storage unit 300 stores compensation Voltage data ⁇ Vth and compensation scale factor;
  • the gray scale data conversion unit 100 is configured to input initial gray scale data, convert the initial gray scale data into initial driving voltage data corresponding to the initial gray scale data, and transmit the data to the compensation unit 200;
  • the compensation unit 200 is configured to compensate the initial driving voltage data transmitted by the gray-scale data conversion unit 100 by using the compensation proportional coefficient and the compensation voltage data ⁇ Vth in the compensation data storage unit 300, and output the compensation driving voltage data to the voltage data conversion unit. 400;
  • the voltage data conversion unit 400 is configured to convert the compensation driving voltage data transmitted by the compensation unit 200 into compensation gray scale data and output to the source driver 500 of the AMOLED display.
  • the gray scale data conversion unit 100 and the voltage data conversion unit 400 respectively store a plurality of tie point gray levels and a plurality of corresponding ones of the plurality of tie point gray levels. Binding voltage data.
  • the gray scale data conversion unit 100 and the voltage data conversion unit 400 respectively store 9 tie point gray scales and 9 tie point voltage data corresponding to 9 tie point gray scales; 9 gray points are tied to 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 /4, 2 N ⁇ 1/8, 0, N is a positive integer, the bit width of the initial gray scale data is Nbit, and the 9 tie point voltage data are respectively the first tie point voltage data GMA1 which is sequentially decreased Second binding point voltage data GMA2, third binding point voltage data GMA3, fourth binding point voltage data GMA4, fifth binding point voltage data GMA5, sixth binding point voltage data GMA6, seventh binding point voltage data GMA7, Eight tie point voltage data GMA8, ninth tie point voltage data GMA9.
  • the sixth tie point voltage data GMA6, the seventh tie point voltage data GMA7, the eighth tie point voltage data GMA8, and the ninth tie point voltage data GMA9 respectively pass the pair 2 N -1, 2 N ⁇ 7/8, 2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 / 4,2 N ⁇ 1 / 8,0 tied to a first voltage corresponding to the point
  • the second Binding point voltage, third tie point voltage, fourth tie point voltage, fifth tie point voltage, sixth tie point voltage, seventh tie point voltage, eighth tie point voltage, ninth tie point voltage are encoded, and a tie voltage, a second tie voltage, a third tie voltage, a fourth tie voltage, a fifth tie voltage, a sixth tie voltage, a seventh tie voltage
  • the compensation voltage data ⁇ Vth is obtained by encoding a preset compensation voltage Vth.
  • the coding range for encoding the preset compensation voltage is -Vref2-Vref2
  • the coding step is Vref2/2 m-1
  • the coding bit width is mbit signed complement, where Vref2 is a preset number
  • the second reference voltage can be specifically selected according to the maximum compensation voltage of the pixel, and m is a positive integer.
  • the key points to note are: the first tie voltage V1, the second tie voltage V2, the third tie voltage V3, the fourth tie voltage V4, the fifth tie voltage V5, the sixth tie voltage V6,
  • the gray scale data conversion unit 100 receives the initial gray scale data
  • the gray scale data conversion unit 100 The binding point voltage data corresponding to the same gray point of the initial gray scale data is output as the initial driving voltage data.
  • the gray level data converting unit 100 and the The two tie point voltage data corresponding to the two gray points of the adjacent gray point data are linearly interpolated, and the initial driving voltage data corresponding to the initial gray level data is calculated and output.
  • the encoding step size is equal to the encoding step size of the preset compensation voltage Vth
  • the initial driving voltage data is based on the first, second, third, fourth, fifth, sixth, seventh, eighth, and
  • the pinch point voltages corresponding to the voltages V1, V2, V3, V4, V5, V6, V7, V8, and V9 are obtained, so the encoding step of the initial driving voltage data is also the encoding step of the preset compensation voltage Vth.
  • the lengths are equal, so that when the compensation unit 200 compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data ⁇ Vth, the compensation voltage data ⁇ Vth is complement-coded with the initial driving voltage data to compensate the initial voltage data.
  • the voltage data conversion unit 400 After the voltage data conversion unit 400 receives the compensation driving voltage data transmitted by the compensation unit 300, when the compensation driving voltage data is identical to one of the plurality of binding point voltage data, the voltage data conversion unit 400 And outputting the gradation gray scale corresponding to the same binding point voltage data as the compensation gray scale data to the source driver 500 of the AMOLED display, when the compensation driving voltage data and the plurality of binding point voltage data are not in phase
  • the voltage data conversion unit 400 linearly interpolates the two tie point gray levels corresponding to the two tie point voltage data adjacent to the compensation drive voltage data, and calculates and outputs the compensated gray scale data corresponding to the compensated drive voltage data. To the source driver 500 of the AMOLED display.
  • the initial gray scale data is converted into the initial driving voltage data by the gray scale data conversion unit 100, and the compensation unit 200 compensates the initial driving voltage data by using the compensation scale coefficient and the compensation voltage data.
  • the compensation driving voltage data is transmitted to the voltage data conversion unit 300, and the voltage data conversion unit 300 converts the compensation driving voltage data into the source driver 500 of the AMOLED display for compensating the gray scale data for display by the AMOLED, thereby realizing the uniformity of the AMOLED display.
  • the compensation because the initial driving voltage data is compensated, can reduce the amount of data required for the compensation, and at the same time, since the gray scale data conversion unit 100 and the voltage data conversion unit 400 both store a plurality of grading points and respectively
  • the initial gray scale data is converted into the initial driving voltage data, if the initial gray scale data is different from the plurality of binding point gray scales, the initial gray scale data is different from the multiple binding point gray data.
  • the method of over-linear interpolation obtains the initial driving voltage data corresponding to the initial gray-scale data.
  • the compensation driving voltage data is converted into the compensated gray-scale data
  • the compensation driving voltage data is different from the multiple binding point voltage data
  • the compensated gray scale data corresponding to the compensated driving voltage data is obtained by the linear interpolation method, and the number of the tie point gray scale and the tie point voltage data can be set, which can effectively reduce the conversion of the initial gray scale data into the initial driving voltage data.
  • the compensation voltage is set to have the same step size, so that when the initial driving voltage data is compensated, the initial driving voltage data and the compensation voltage data are directly complemented, and the complexity of the compensation operation can be effectively reduced.
  • the present invention further provides a compensation method for an AMOLED display, which is applied to the compensation system of the AMOLED display described above, and the structure of the AMOLED display is not repeatedly described herein.
  • the compensation method of the AMOLED display includes the following steps:
  • Step S1 initial gray scale data is input to the gray scale data conversion unit 100, and the gray scale data conversion unit 100 converts the initial gray scale data into initial driving voltage data corresponding to the initial gray scale data, and transmits the data to the compensation unit 200.
  • the gray scale data conversion unit 100 and the voltage data conversion unit 400 respectively store a plurality of tie point gray levels and a plurality of corresponding ones of the plurality of tie point gray levels. Binding voltage data.
  • the gray scale data conversion unit 100 and the voltage data conversion unit 400 respectively store 9 tie point gray scales and 9 tie point voltage data corresponding to 9 tie point gray scales; 9 gray points are tied to 2 N -1,2 N ⁇ 7 / 8,2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 /4, 2 N ⁇ 1/8, 0, N is a positive integer, the bit width of the initial gray scale data is Nbit, and the 9 tie point voltage data are respectively the first tie point voltage data GMA1 which is sequentially decreased Second binding point voltage data GMA2, third binding point voltage data GMA3, fourth binding point voltage data GMA4, fifth binding point voltage data GMA5, sixth binding point voltage data GMA6, seventh binding point voltage data GMA7, Eight tie point voltage data GMA8, ninth tie point voltage data GMA9.
  • the sixth tie point voltage data GMA6, the seventh tie point voltage data GMA7, the eighth tie point voltage data GMA8, and the ninth tie point voltage data GMA9 respectively pass the pair 2 N -1, 2 N ⁇ 7/8, 2 N ⁇ 3 / 4,2 N ⁇ 5 / 8,2 N ⁇ 1 / 2,2 N ⁇ 3 / 8,2 N ⁇ 1 / 4,2 N ⁇ 1 / 8,0 tie point corresponding to a first voltage V1, the first Second tie voltage V2, third tie voltage V3, fourth tie voltage V4, fifth tie voltage V5, sixth tie voltage V6, seventh tie voltage V7, eighth tie voltage V8, ninth
  • the binding point voltage V9 is obtained by encoding, the first binding point voltage V1, the second binding point voltage V2, the third binding point voltage V3, the fourth binding point voltage V4, the fifth binding point voltage V5, the
  • the compensation voltage data ⁇ Vth is obtained by encoding a preset compensation voltage Vth.
  • the coding range for encoding the preset compensation voltage is -Vref2-Vref2
  • the coding step is Vref2/2 m-1
  • the coding bit width is mbit signed complement, where Vref2 is a preset number
  • the second reference voltage can be specifically selected according to the maximum compensation voltage of the pixel, and m is a positive integer.
  • the key points to note are: the first tie voltage V1, the second tie voltage V2, the third tie voltage V3, the fourth tie voltage V4, the fifth tie voltage V5, the sixth tie voltage V6,
  • the grayscale data conversion unit 100 receives the initial grayscale data, when the initial grayscale data is identical to one of the plurality of tiestep grayscales, the grayscale data conversion is performed.
  • the unit 100 outputs the binding point voltage data corresponding to the same gray point of the initial gray scale data as the initial driving voltage data, and when the initial gray level data is different from the plurality of binding point gray levels, the gray scale data conversion
  • the unit 100 linearly interpolates the two tie point voltage data corresponding to the two tie point gray levels adjacent to the initial gray scale data, and calculates and outputs the initial drive voltage data corresponding to the initial gray scale data.
  • step S2 the compensation unit 200 compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data ⁇ Vth in the compensation data storage unit 300, and outputs the compensation driving voltage data to the voltage data conversion unit 400.
  • the encoding step size is equal to the encoding step size of the preset compensation voltage Vth
  • the initial driving voltage data is based on the first, second, third, fourth, fifth, sixth, seventh, eighth, and
  • the pinch point voltages corresponding to the voltages V1, V2, V3, V4, V5, V6, V7, V8, and V9 are obtained, so the encoding step of the initial driving voltage data is also the encoding step of the preset compensation voltage Vth.
  • step S3 when the compensation unit 200 compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data ⁇ Vth, the compensation voltage data ⁇ Vth and the initial driving voltage data are complement-added to compensate the initial voltage data. .
  • Step S3 the voltage data conversion unit 400 converts the compensated driving voltage data into compensated gray scale data and outputs it to the source driver 500 of the AMOLED display.
  • the voltage data conversion unit 400 receives the compensation driving voltage data
  • the voltage data conversion unit 400 when the compensation driving voltage data is the same as one of the plurality of binding point voltage data, the voltage data conversion unit 400 The gradation gray scale corresponding to the same binding point voltage data as the compensation driving voltage data is output as the compensation gray scale data, and when the compensation driving voltage data and the plurality of binding point voltage data are different, the voltage data conversion unit 400 The two tie point gray levels corresponding to the two tie point voltage data adjacent to the compensation drive voltage data are linearly interpolated, and the compensated gray scale data corresponding to the compensated drive voltage data is calculated and output.
  • the gray scale data conversion unit 100 converts the initial gray scale data into the initial driving voltage data
  • the compensation unit 200 compensates the initial driving voltage data by using the compensation scale coefficient and the compensation voltage data.
  • the compensation driving voltage data is transmitted to the voltage data conversion unit 300, and the voltage data conversion unit 300 converts the compensation driving voltage data into the source driver 500 of the AMOLED display for compensating the gray scale data for display by the AMOLED, thereby realizing the uniformity of the AMOLED display.
  • the compensation because the initial driving voltage data is compensated, can reduce the amount of data required for the compensation, and at the same time, since the gray scale data conversion unit 100 and the voltage data conversion unit 400 both store a plurality of grading points and respectively A plurality of tie point voltage data corresponding to the gray point of the tie point, when the initial gray scale data is converted into the initial drive voltage data, if the initial gray scale data is different from the plurality of tie point gray scales, the linear interpolation is performed.
  • the method obtains the initial driving voltage data corresponding to the initial gray scale data, and the same reason
  • the compensation driving voltage data is converted into the compensation gray scale data
  • the compensation gray scale data corresponding to the compensation driving voltage data is obtained by the linear interpolation method
  • Setting a small number of tie point gray scale and tie point voltage data can effectively reduce the amount of data required to convert the initial gray scale data into initial drive voltage data and convert the compensated drive voltage data into compensated gray scale data, and further
  • the initial driving voltage data and the compensation voltage data are directly complemented, and the complexity of the compensation operation can be effectively reduced.
  • the compensation system of the AMOLED display of the present invention inputs initial gray scale data into the gray scale data conversion unit, and converts the initial gray scale data into and through the gray scale data conversion unit.
  • the initial driving voltage data corresponding to the initial gray scale data is transmitted to the compensation unit, and the compensation unit compensates the initial driving voltage data by using the compensation proportional coefficient and the compensation voltage data in the compensation data storage unit, and outputs the compensation driving voltage data to the voltage data conversion.
  • the unit, the voltage data conversion unit converts the compensation driving voltage data into the compensation gray scale data and outputs it to the source driver of the AMOLED display, and compensates the uniformity of the AMOLED display by compensating the initial driving voltage data, thereby reducing The amount of data required for compensation.
  • the compensation method of the AMOLED display of the present invention is applied to the compensation system of the above AMOLED display, and can compensate for the uniformity of the AMOLED, and the amount of data required for compensation is small.

Landscapes

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

Abstract

一种AMOLED显示器的补偿系统及补偿方法。将初始灰阶数据输入灰阶数据转换单元（100）中，通过灰阶数据转换单元（100）将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元（200），补偿单元（200）利用补偿数据存储单元（300）中的补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元（400），电压数据转换单元（400）再将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器（500）中，通过对初始驱动电压数据进行补偿的方式实现对AMOLED显示器均匀性的补偿，可减少补偿所需的资料量。

Description

AMOLED显示器的补偿系统及补偿方法 技术领域
本发明涉及显示技术领域，尤其涉及一种AMOLED显示器的补偿系统及补偿方法。
背景技术
有机发光二极管(Organic Light Emitting Display，OLED)显示装置具有自发光、驱动电压低、发光效率高、响应时间短、清晰度与对比度高、近180°视角、使用温度范围宽，可实现柔性显示与大面积全色显示等诸多优点，被业界公认为是最有发展潜力的显示装置。
OLED显示装置按照驱动方式可以分为无源矩阵型OLED(Passive Matrix OLED，PMOLED)和有源矩阵型OLED(Active Matrix OLED，AMOLED)两大类，即直接寻址和薄膜晶体管(Thin Film Transistor，TFT)矩阵寻址两类。其中，AMOLED具有呈阵列式排布的像素，属于主动显示类型，发光效能高，通常用作高清晰度的大尺寸显示装置。
OLED是电流驱动器件，当有电流流过有机发光二极管时，有机发光二极管发光，且发光亮度由流过有机发光二极管自身的电流决定。大部分已有的集成电路(Integrated Circuit，IC)都只传输电压信号，故AMOLED的像素驱动电路需要完成将电压信号转变为电流信号的任务。
请参阅图1，为现有的2T1C结构的AMOLED像素驱动电路，包括第一薄膜晶体管T1、第二薄膜晶体管T2、电容C1、有机发光二极管D1，所述第一薄膜晶体管T1的栅极接入扫描信号Scan，源极接入数据信号Data，漏极电性连接第二薄膜晶体管T2的栅极；所述第二薄膜晶体管T2的漏极接入电源高电位OVDD，源极电性连接有机发光二极管D1的阳极；所述有机发光二极管D1的阴极接入电源低电位OVSS；所述电容C1的两端分别电性连接第二薄膜晶体管T2的栅极和源极。其中，第二薄膜晶体管T2为驱动薄膜晶体管，工作时，数据信号Data写入第二薄膜晶体管T2的栅极，电流流过第二薄膜晶体管T2及有机发光二极管D1，使有机发光二极管D1发光。当驱动薄膜晶体管工作在饱和区，流过驱动薄膜晶体管的电流为：
Ids＝k(Vgs-Vth)2；其中，Ids为流过驱动薄膜晶体管的电流，k为驱动薄膜晶体管的本征导电因子，Vgs为驱动薄膜晶体管的栅源极电压差，Vth为驱动薄膜晶体管的阈值电压；
而有机发光二极管的亮度公式为：
L＝η×Ioled；其中，L为有机发光二极管发光亮度，η为有机发光二极管的发光系数，Ioled为流过有机发光二极管的电流；
由于在上述2T1C像素驱动电路中有机发光二极管和驱动薄膜晶体管串联，结合上述两个公式可知，L＝η×k(Vgs-Vth)2；
由于每一像素中的驱动薄膜晶体管的阈值电压与本征导电因子、有机发光二极管的发光系数均存在差异，会导致即使驱动薄膜晶体管栅源极电压差相同的情况下，AMOLED显示器的亮度也会呈现不均匀性。因此，需要对AMOLED显示器进行补偿，以达到更好的显示效果。
发明内容
本发明的目的在于提供一种AMOLED显示器的补偿系统，能够实现对AMOLED均匀性的补偿，且补偿所需的资料量少。
本发明的另一目的在于提供一种AMOLED显示器的补偿方法，能够实现对AMOLED均匀性的补偿，且补偿所需的资料量少。
为实现上述目的，本发明首先提供一种AMOLED显示器的补偿系统，包括灰阶数据转换单元、与灰阶数据转换单元电性连接的补偿单元、与补偿单元电性连接的补偿数据存储单元、与补偿单元电性连接的电压数据转换单元；电压数据转换单元与AMOLED显示器的源极驱动器电性连接；补偿数据存储单元存储有补偿电压数据及补偿比例系数；其中：
所述灰阶数据转换单元，用于输入初始灰阶数据，将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据并传输至补偿单元；
所述补偿单元，用于利用补偿数据存储单元中的补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
所述电压数据转换单元，用于将补偿单元传输的补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
所述灰阶数据转换单元及电压数据转换单元内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据；
在灰阶数据转换单元接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与 该初始灰阶数据对应的初始驱动电压数据并输出；
在电压数据转换单元接收到补偿单元传输的补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单元将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出至AMOLED显示器的源极驱动器，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
所述灰阶数据转换单元及电压数据转换单元内均存储有9个绑点灰阶及与9个绑点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据。
所述第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码获得，第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，Vref1为一预设的第一参考电压，n为正整数。
所述补偿电压数据通过对预设的补偿电压进行编码获得，对第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码的步长与对预设的补偿电压进行编码的步长相等。
对预设的补偿电压进行编码的编码范围为-Vref2-Vref2，编码步长为Vref2/2m-1，编码位宽为mbit有符号数补码，Vref2为一预设的第二参考电压，m为正整数。
在补偿单元利用补偿比例系数及补偿电压数据对灰阶数据转换单元传 输的初始驱动电压数据进行补偿时，将补偿电压数据与初始驱动电压数据进行补码相加。
本发明还提供一种AMOLED显示器的补偿方法，应用于上述的AMOLED显示器的补偿系统，包括如下步骤：
步骤S1、向灰阶数据转换单元输入初始灰阶数据，所述灰阶数据转换单元将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元；
步骤S2、补偿单元利用补偿数据存储单元中的补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
步骤S3、电压数据转换单元将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
本发明还提供一种AMOLED显示器的补偿系统，包括灰阶数据转换单元、与灰阶数据转换单元电性连接的补偿单元、与补偿单元电性连接的补偿数据存储单元、与补偿单元电性连接的电压数据转换单元；电压数据转换单元与AMOLED显示器的源极驱动器电性连接；补偿数据存储单元存储有补偿电压数据及补偿比例系数；其中：
所述灰阶数据转换单元，用于输入初始灰阶数据，将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据并传输至补偿单元；
所述补偿单元，用于利用补偿数据存储单元中的补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
所述电压数据转换单元，用于将补偿单元传输的补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器；
其中，所述灰阶数据转换单元及电压数据转换单元内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据；
在灰阶数据转换单元接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与该初始灰阶数据对应的初始驱动电压数据并输出；
在电压数据转换单元接收到补偿单元传输的补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单 元将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出至AMOLED显示器的源极驱动器，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出至AMOLED显示器的源极驱动器；
其中，所述灰阶数据转换单元及电压数据转换单元内均存储有9个绑点灰阶及与9个绑点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据；
其中，所述第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码获得，第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，Vref1为一预设的第一参考电压，n为正整数；
其中，所述补偿电压数据通过对预设的补偿电压进行编码获得，对第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码的步长与对预设的补偿电压进行编码的步长相等。
本发明的有益效果：本发明提供的一种AMOLED显示器的补偿系统，将初始灰阶数据输入灰阶数据转换单元中，通过灰阶数据转换单元将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元，补偿单元利用补偿数据存储单元中的补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元，电压数据转换单元再将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器中，通过对初始驱动电压数据进行补偿的 方式实现对AMOLED显示器均匀性的补偿，可减少补偿所需的资料量。本发明提供的一种AMOLED显示器的补偿方法，应用于上述AMOLED显示器的补偿系统，能够实现对AMOLED均匀性的补偿，且补偿所需的资料量少。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为现有的2T1C结构的AMOLED像素驱动电路的电路图；
图2为本发明的AMOLED显示器的补偿系统的结构示意图；
图3为本发明的AMOLED显示器的补偿方法的流程图；
图4为本发明的AMOLED显示器的补偿方法的步骤S1的示意图；
图5为本发明的AMOLED显示器的补偿方法的步骤S3的示意图；
图6为本发明的AMOLED显示器的补偿方法中绑点电压编码的示意图；
图7为本发明的AMOLED显示器的补偿方法中补偿电压编码的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图2，并结合图4至图7，本发明提供一种AMOLED显示器的补偿系统，包括灰阶数据转换单元100、与灰阶数据转换单元100电性连接的补偿单元200、与补偿单元200电性连接的补偿数据存储单元300、与补偿单元200电性连接的电压数据转换单元400；电压数据转换单元400与AMOLED显示器的源极驱动器500电性连接；补偿数据存储单元300存储有补偿电压数据ΔVth及补偿比例系数；其中：
所述灰阶数据转换单元100，用于输入初始灰阶数据，将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据并传输至补偿单元200；
所述补偿单元200，用于利用补偿数据存储单元300中的补偿比例系数及补偿电压数据ΔVth对灰阶数据转换单元100传输的初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元400；
所述电压数据转换单元400，用于将补偿单元200传输的补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器500。
具体地，请参阅图4及图5，所述灰阶数据转换单元100及电压数据转换单元400内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据。
优选地，所述灰阶数据转换单元100及电压数据转换单元400内均存储有9个绑点灰阶及与9个绑点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据GMA1、第二绑点电压数据GMA2、第三绑点电压数据GMA3、第四绑点电压数据GMA4、第五绑点电压数据GMA5、第六绑点电压数据GMA6、第七绑点电压数据GMA7、第八绑点电压数据GMA8、第九绑点电压数据GMA9。
进一步地，请参阅图6，所述第一绑点电压数据GMA1、第二绑点电压数据GMA2、第三绑点电压数据GMA3、第四绑点电压数据GMA4、第五绑点电压数据GMA5、第六绑点电压数据GMA6、第七绑点电压数据GMA7、第八绑点电压数据GMA8、第九绑点电压数据GMA9分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码获得，第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，Vref1为一预设的第一参考电压，可根据像素的最大驱动电压进行具体选取，n为正整数，可根据需求的补偿精度进行具体选取。
具体地，请参阅图7，所述补偿电压数据ΔVth通过对预设的补偿电压Vth进行编码获得。
进一步地，对预设的补偿电压进行编码的编码范围为-Vref2-Vref2，编码步长为Vref2/2m-1，编码位宽为mbit有符号数补码，其中Vref2为一预设的第二参考电压，可根据像素的最大补偿电压进行具体选取，m为正整数。
重点需要注意的是，对第一绑点电压V1、第二绑点电压V2、第三绑点电压V3、第四绑点电压V4、第五绑点电压V5、第六绑点电压V6、第七绑点电压V7、第八绑点电压V8、第九绑点电压V9进行编码的步长与对预设的补偿电压Vth进行编码的步长相等，也即Vref1/2n＝Vref2/2m-1，Vref1/Vref2＝2n-m+1，因此，当第一参考电压、第二参考电压、n的取值确定，m的取值即确定。
具体地，请参阅图4，在灰阶数据转换单元100接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元100将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元100将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与该初始灰阶数据对应的初始驱动电压数据并输出。
具体地，由于第一、第二、第三、第四、第五、第六、第七、第八、第九绑点电压V1、V2、V3、V4、V5、V6、V7、V8、V9的编码步长与预设的补偿电压Vth的编码步长相等，而初始驱动电压数据是根据与第一、第二、第三、第四、第五、第六、第七、第八、第九绑点电压V1、V2、V3、V4、V5、V6、V7、V8、V9对应的绑点电压数据获取的，因此初始驱动电压数据的编码步长也与预设的补偿电压Vth的编码步长相等，从而在补偿单元200利用补偿比例系数及补偿电压数据ΔVth对初始驱动电压数据进行补偿时，将补偿电压数据ΔVth与初始驱动电压数据进行补码相加即可对初始电压数据进行补偿。
具体地，请参阅图5，在电压数据转换单元400接收到补偿单元300传输的补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单元400将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出至AMOLED显示器的源极驱动器500，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元400将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出至AMOLED显示器的源极驱动器500。
需要说明的是，上述AMOLED显示器的补偿系统，通过灰阶数据转换单元100将初始灰阶数据转换为初始驱动电压数据，补偿单元200利用补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，向电压数据转换单元300传输补偿驱动电压数据，电压数据转换单元300将补偿驱动电压数据转换为补偿灰阶数据输出至AMOLED显示器的源极驱动器500以供AMOLED进行显示，实现对AMOLED显示器均匀性的补偿，由于是针对初始驱动电压数据进行补偿，可减少补偿所需的资料量，同时，由于灰阶数据转换单元100及电压数据转换单元400内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据，在将初始灰阶数据转换为初始驱动电压数据时，若初始灰阶数据与多个绑点灰阶均不相同，则通 过线性插值的方法得到与初始灰阶数据对应的初始驱动电压数据，同理，在将补偿驱动电压数据转换为补偿灰阶数据时，若补偿驱动电压数据与多个绑点电压数据均不相同，则通过线性插值的方法得到与补偿驱动电压数据对应的补偿灰阶数据，可设置数量较少的绑点灰阶与绑点电压数据，能够有效减少将初始灰阶数据转换为初始驱动电压数据、将补偿驱动电压数据转换为补偿灰阶数据时所需的数据的量，进而减小用于存储数据的存储空间，降低成本；并且，设置将绑点电压进行编码的编码步长与将预设的补偿电压进行编码的步长相同，使在对初始驱动电压数据进行补偿时，直接将初始驱动电压数据与补偿电压数据进行补码相加即可，能够有效降低补偿运算的复杂程度。
请参阅图3，并结合图4至图7，本发明还提供一种AMOLED显示器的补偿方法，应用于上述的AMOLED显示器的补偿系统，在此不再对AMOLED显示器的结构做重复性描述，该AMOLED显示器的补偿方法包括如下步骤：
步骤S1、向灰阶数据转换单元100输入初始灰阶数据，所述灰阶数据转换单元100将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元200。
具体地，请参阅图4及图5，所述灰阶数据转换单元100及电压数据转换单元400内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据。
优选地，所述灰阶数据转换单元100及电压数据转换单元400内均存储有9个绑点灰阶及与9个绑点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据GMA1、第二绑点电压数据GMA2、第三绑点电压数据GMA3、第四绑点电压数据GMA4、第五绑点电压数据GMA5、第六绑点电压数据GMA6、第七绑点电压数据GMA7、第八绑点电压数据GMA8、第九绑点电压数据GMA9。
进一步地，请参阅图6，所述第一绑点电压数据GMA1、第二绑点电压数据GMA2、第三绑点电压数据GMA3、第四绑点电压数据GMA4、第五绑点电压数据GMA5、第六绑点电压数据GMA6、第七绑点电压数据GMA7、第八绑点电压数据GMA8、第九绑点电压数据GMA9分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压V1、第二绑点电压V2、第三绑点电压V3、第四绑点电压 V4、第五绑点电压V5、第六绑点电压V6、第七绑点电压V7、第八绑点电压V8、第九绑点电压V9进行编码获得，第一绑点电压V1、第二绑点电压V2、第三绑点电压V3、第四绑点电压V4、第五绑点电压V5、第六绑点电压V6、第七绑点电压V7、第八绑点电压V8、第九绑点电压V9的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，其中Vref1为一预设的第一参考电压，可根据像素的最大驱动电压进行具体选取，n为正整数，可根据需求的补偿精度进行具体选取。
具体地，请参阅图7，所述补偿电压数据ΔVth通过对预设的补偿电压Vth进行编码获得。
进一步地，对预设的补偿电压进行编码的编码范围为-Vref2-Vref2，编码步长为Vref2/2m-1，编码位宽为mbit有符号数补码，其中Vref2为一预设的第二参考电压，可根据像素的最大补偿电压进行具体选取，m为正整数。
重点需要注意的是，对第一绑点电压V1、第二绑点电压V2、第三绑点电压V3、第四绑点电压V4、第五绑点电压V5、第六绑点电压V6、第七绑点电压V7、第八绑点电压V8、第九绑点电压V9进行编码的步长与对预设的补偿电压Vth进行编码的步长相等，也即Vref1/2n＝Vref2/2m-1，Vref1/Vref2＝2n-m+1，因此，当第一参考电压、第二参考电压、n的取值确定，m的取值即确定。
具体地，请参阅图4，所述步骤S1中，灰阶数据转换单元100接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元100将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元100将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与该初始灰阶数据对应的初始驱动电压数据并输出。
步骤S2、补偿单元200利用补偿数据存储单元300中的补偿比例系数及补偿电压数据ΔVth对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元400。
具体地，由于第一、第二、第三、第四、第五、第六、第七、第八、第九绑点电压V1、V2、V3、V4、V5、V6、V7、V8、V9的编码步长与预设的补偿电压Vth的编码步长相等，而初始驱动电压数据是根据与第一、第二、第三、第四、第五、第六、第七、第八、第九绑点电压V1、V2、V3、V4、V5、V6、V7、V8、V9对应的绑点电压数据获取的，因此初始驱动电压数据的编码步长也与预设的补偿电压Vth的编码步长相等，从而在 所述步骤S3中，补偿单元200利用补偿比例系数及补偿电压数据ΔVth对初始驱动电压数据进行补偿时，将补偿电压数据ΔVth与初始驱动电压数据进行补码相加即可对初始电压数据进行补偿。
步骤S3、电压数据转换单元400将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器500。
具体地，请参阅图5，所述步骤S3中，电压数据转换单元400接收到补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单元400将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元400将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出。
需要说明的是，上述AMOLED显示器的补偿方法，通过灰阶数据转换单元100将初始灰阶数据转换为初始驱动电压数据，补偿单元200利用补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，向电压数据转换单元300传输补偿驱动电压数据，电压数据转换单元300将补偿驱动电压数据转换为补偿灰阶数据输出至AMOLED显示器的源极驱动器500以供AMOLED进行显示，实现对AMOLED显示器均匀性的补偿，由于是针对初始驱动电压数据进行补偿，可减少补偿所需的资料量，同时，由于灰阶数据转换单元100及电压数据转换单元400内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据，在将初始灰阶数据转换为初始驱动电压数据时，若初始灰阶数据与多个绑点灰阶均不相同，则通过线性插值的方法得到与初始灰阶数据对应的初始驱动电压数据，同理，在将补偿驱动电压数据转换为补偿灰阶数据时，若补偿驱动电压数据与多个绑点电压数据均不相同，则通过线性插值的方法得到与补偿驱动电压数据对应的补偿灰阶数据，可设置数量较少的绑点灰阶与绑点电压数据，能够有效减少将初始灰阶数据转换为初始驱动电压数据、将补偿驱动电压数据转换为补偿灰阶数据时所需的数据的量，进而减小用于存储数据的存储空间，降低成本；并且，设置将绑点电压进行编码的编码步长与将预设的补偿电压进行编码的步长相同，使在对初始驱动电压数据进行补偿时，直接将初始驱动电压数据与补偿电压数据进行补码相加即可，能够有效降低补偿运算的复杂程度。
综上所述，本发明的AMOLED显示器的补偿系统，将初始灰阶数据输入灰阶数据转换单元中，通过灰阶数据转换单元将初始灰阶数据转换为与 初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元，补偿单元利用补偿数据存储单元中的补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元，电压数据转换单元再将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器中，通过对初始驱动电压数据进行补偿的方式实现对AMOLED显示器均匀性的补偿，可减少补偿所需的资料量。本发明的AMOLED显示器的补偿方法，应用于上述AMOLED显示器的补偿系统，能够实现对AMOLED均匀性的补偿，且补偿所需的资料量少。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (11)

  1. 一种AMOLED显示器的补偿系统，包括灰阶数据转换单元、与灰阶数据转换单元电性连接的补偿单元、与补偿单元电性连接的补偿数据存储单元、与补偿单元电性连接的电压数据转换单元；电压数据转换单元与AMOLED显示器的源极驱动器电性连接；补偿数据存储单元存储有补偿电压数据及补偿比例系数；其中：
    所述灰阶数据转换单元，用于输入初始灰阶数据，将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据并传输至补偿单元；
    所述补偿单元，用于利用补偿数据存储单元中的补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
    所述电压数据转换单元，用于将补偿单元传输的补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
  2. 如权利要求1所述的AMOLED显示器的补偿系统，其中，所述灰阶数据转换单元及电压数据转换单元内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据；
    在灰阶数据转换单元接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与该初始灰阶数据对应的初始驱动电压数据并输出；
    在电压数据转换单元接收到补偿单元传输的补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单元将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出至AMOLED显示器的源极驱动器，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
  3. 如权利要求2所述的AMOLED显示器的补偿系统，其中，所述灰阶数据转换单元及电压数据转换单元内均存储有9个绑点灰阶及与9个绑 点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据。
  4. 如权利要求3所述的AMOLED显示器的补偿系统，其中，所述第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码获得，第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，Vref1为一预设的第一参考电压，n为正整数。
  5. 如权利要求4所述的AMOLED显示器的补偿系统，其中，所述补偿电压数据通过对预设的补偿电压进行编码获得，对第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码的步长与对预设的补偿电压进行编码的步长相等。
  6. 如权利要求5所述的AMOLED显示器的补偿系统，其中，对预设的补偿电压进行编码的编码范围为-Vref2-Vref2，编码步长为Vref2/2m-1，编码位宽为mbit有符号数补码，Vref2为一预设的第二参考电压，m为正整数。
  7. 如权利要求6所述的AMOLED显示器的补偿系统，其中，在补偿单元利用补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿时，将补偿电压数据与初始驱动电压数据进行补码相加。
  8. 一种AMOLED显示器的补偿方法，应用于如权利要求1所述的AMOLED显示器的补偿系统，包括如下步骤：
    步骤S1、向灰阶数据转换单元输入初始灰阶数据，所述灰阶数据转换单元将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据，并传输至补偿单元；
    步骤S2、补偿单元利用补偿数据存储单元中的补偿比例系数及补偿电压数据对初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
    步骤S3、电压数据转换单元将补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器。
  9. 一种AMOLED显示器的补偿系统，包括灰阶数据转换单元、与灰阶数据转换单元电性连接的补偿单元、与补偿单元电性连接的补偿数据存储单元、与补偿单元电性连接的电压数据转换单元；电压数据转换单元与AMOLED显示器的源极驱动器电性连接；补偿数据存储单元存储有补偿电压数据及补偿比例系数；其中：
    所述灰阶数据转换单元，用于输入初始灰阶数据，将初始灰阶数据转换为与初始灰阶数据对应的初始驱动电压数据并传输至补偿单元；
    所述补偿单元，用于利用补偿数据存储单元中的补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿，输出补偿驱动电压数据至电压数据转换单元；
    所述电压数据转换单元，用于将补偿单元传输的补偿驱动电压数据转换为补偿灰阶数据并输出至AMOLED显示器的源极驱动器；
    其中，所述灰阶数据转换单元及电压数据转换单元内均存储有多个绑点灰阶及分别与多个绑点灰阶一一对应的多个绑点电压数据；
    在灰阶数据转换单元接收初始灰阶数据后，当该初始灰阶数据与多个绑点灰阶中的一个相同时，灰阶数据转换单元将与该初始灰阶数据相同的绑点灰阶对应的绑点电压数据作为初始驱动电压数据输出，当该初始灰阶数据与多个绑点灰阶均不相同时，灰阶数据转换单元将与该初始灰阶数据相邻的两个绑点灰阶对应的两个绑点电压数据进行线性插值，计算得到与该初始灰阶数据对应的初始驱动电压数据并输出；
    在电压数据转换单元接收到补偿单元传输的补偿驱动电压数据后，当补偿驱动电压数据与多个绑点电压数据中的一个相同时，电压数据转换单元将与该补偿驱动电压数据相同的绑点电压数据对应的绑点灰阶作为补偿灰阶数据输出至AMOLED显示器的源极驱动器，当该补偿驱动电压数据与多个绑点电压数据均不相同时，电压数据转换单元将与该补偿驱动电压数据相邻的两个绑点电压数据对应的两个绑点灰阶进行线性插值，计算得到与补偿驱动电压数据对应的补偿灰阶数据并输出至AMOLED显示器的源极驱动器；
    其中，所述灰阶数据转换单元及电压数据转换单元内均存储有9个绑 点灰阶及与9个绑点灰阶一一对应的9个绑点电压数据；所述9个绑点灰阶分别为2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0，N为正整数，所述初始灰阶数据的位宽为Nbit，所述9个绑点电压数据分别为依次减小的第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据；
    其中，所述第一绑点电压数据、第二绑点电压数据、第三绑点电压数据、第四绑点电压数据、第五绑点电压数据、第六绑点电压数据、第七绑点电压数据、第八绑点电压数据、第九绑点电压数据分别通过对与2N-1、2N×7/8、2N×3/4、2N×5/8、2N×1/2、2N×3/8、2N×1/4、2N×1/8、0对应的第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码获得，第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压的编码范围为0-Vref1，编码步长为Vref1/2n，编码位宽为nbit无符号数，Vref1为一预设的第一参考电压，n为正整数；
    其中，所述补偿电压数据通过对预设的补偿电压进行编码获得，对第一绑点电压、第二绑点电压、第三绑点电压、第四绑点电压、第五绑点电压、第六绑点电压、第七绑点电压、第八绑点电压、第九绑点电压进行编码的步长与对预设的补偿电压进行编码的步长相等。
  10. 如权利要求9所述的AMOLED显示器的补偿系统，其中，对预设的补偿电压进行编码的编码范围为-Vref2-Vref2，编码步长为Vref2/2m-1，编码位宽为mbit有符号数补码，Vref2为一预设的第二参考电压，m为正整数。
  11. 如权利要求10所述的AMOLED显示器的补偿系统，其中，在补偿单元利用补偿比例系数及补偿电压数据对灰阶数据转换单元传输的初始驱动电压数据进行补偿时，将补偿电压数据与初始驱动电压数据进行补码相加。
PCT/CN2017/117305 2017-11-22 2017-12-19 Amoled显示器的补偿系统及补偿方法 WO2019100486A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/749,109 US10249245B1 (en) 2017-11-22 2017-12-19 Compensation system and compensation method for AMOLED

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201711177278.6 2017-11-22
CN201711177278.6A CN107845365B (zh) 2017-11-22 2017-11-22 Amoled显示器的补偿系统及补偿方法

Publications (1)

Publication Number Publication Date
WO2019100486A1 true WO2019100486A1 (zh) 2019-05-31

Family

ID=61680221

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/117305 WO2019100486A1 (zh) 2017-11-22 2017-12-19 Amoled显示器的补偿系统及补偿方法

Country Status (2)

Country Link
CN (1) CN107845365B (zh)
WO (1) WO2019100486A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108520718B (zh) * 2018-04-18 2019-12-27 京东方科技集团股份有限公司 一种显示装置的像素数据补偿方法及装置、显示装置
CN108986731B (zh) * 2018-08-07 2021-10-08 京东方科技集团股份有限公司 一种显示面板及其补偿方法、显示装置
CN108877678A (zh) * 2018-09-10 2018-11-23 深圳创维－Rgb电子有限公司 基于像素补偿的图像显示方法、装置、显示设备和介质
CN109767729B (zh) * 2019-04-01 2023-10-31 广州国显科技有限公司 一种屏体伽马调试方法及显示模组
CN110890065B (zh) * 2019-11-01 2021-04-27 深圳市华星光电半导体显示技术有限公司 显示面板的控制方法及控制装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090058772A1 (en) * 2007-09-04 2009-03-05 Samsung Electronics Co., Ltd. Organic light emitting display and method for driving the same
US20130265344A1 (en) * 2010-12-17 2013-10-10 Sharp Kabushiki Kaisha Driving device, driving method, and system for display device
CN104464626A (zh) * 2014-12-12 2015-03-25 京东方科技集团股份有限公司 有机电致发光显示装置及方法
CN105096824A (zh) * 2015-08-06 2015-11-25 青岛海信电器股份有限公司 自发光显示器灰阶补偿方法、装置和自发光显示设备
CN105469769A (zh) * 2016-02-01 2016-04-06 京东方科技集团股份有限公司 液晶显示面板及显示画面的方法
CN105529011A (zh) * 2016-02-18 2016-04-27 京东方科技集团股份有限公司 显示面板及驱动方法、显示装置
CN106205536A (zh) * 2016-08-30 2016-12-07 深圳市华星光电技术有限公司 液晶面板的驱动方法及装置
CN107316601A (zh) * 2017-08-18 2017-11-03 芯颖科技有限公司 Ir drop补偿方法及装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3526471B2 (ja) * 1994-06-09 2004-05-17 株式会社東芝 多階調表示装置
WO2009011150A1 (ja) * 2007-07-18 2009-01-22 Sharp Kabushiki Kaisha 表示装置およびその駆動方法
JP2010256433A (ja) * 2009-04-22 2010-11-11 Renesas Electronics Corp 表示ドライバ及びそのテスト方法
TWI437536B (zh) * 2011-12-23 2014-05-11 Au Optronics Corp 場發射顯示器及場發射顯示器產生輸出影像之方法
CN102903344B (zh) * 2012-09-27 2014-10-08 合肥京东方光电科技有限公司 公共电极电压补偿方法、装置及时序控制器
CN105702215B (zh) * 2016-04-26 2018-05-25 京东方科技集团股份有限公司 伽马电压校正方法及装置
CN105741775B (zh) * 2016-05-05 2019-01-22 京东方科技集团股份有限公司 调整伽马曲线的方法及装置
CN106548756B (zh) * 2016-11-02 2019-04-26 深圳市华星光电技术有限公司 一种灰阶显示补偿方法及系统、显示装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090058772A1 (en) * 2007-09-04 2009-03-05 Samsung Electronics Co., Ltd. Organic light emitting display and method for driving the same
US20130265344A1 (en) * 2010-12-17 2013-10-10 Sharp Kabushiki Kaisha Driving device, driving method, and system for display device
CN104464626A (zh) * 2014-12-12 2015-03-25 京东方科技集团股份有限公司 有机电致发光显示装置及方法
CN105096824A (zh) * 2015-08-06 2015-11-25 青岛海信电器股份有限公司 自发光显示器灰阶补偿方法、装置和自发光显示设备
CN105469769A (zh) * 2016-02-01 2016-04-06 京东方科技集团股份有限公司 液晶显示面板及显示画面的方法
CN105529011A (zh) * 2016-02-18 2016-04-27 京东方科技集团股份有限公司 显示面板及驱动方法、显示装置
CN106205536A (zh) * 2016-08-30 2016-12-07 深圳市华星光电技术有限公司 液晶面板的驱动方法及装置
CN107316601A (zh) * 2017-08-18 2017-11-03 芯颖科技有限公司 Ir drop补偿方法及装置

Also Published As

Publication number Publication date
CN107845365B (zh) 2019-12-06
CN107845365A (zh) 2018-03-27

Similar Documents

Publication Publication Date Title
WO2019100486A1 (zh) Amoled显示器的补偿系统及补偿方法
US11657762B2 (en) Pixel and organic light emitting diode display having a bypass transistor for passing a portion of a driving current
US11355064B2 (en) Pixel circuit and display device including the same
US9653024B1 (en) Method of compensating AMOLED IR drop and system
US9947271B2 (en) Threshold voltage detection circuit for OLED display device
US10229635B2 (en) Organic light emitting display device
US8947471B2 (en) Active matrix display and method of driving the same
CN100410991C (zh) 发光显示器及其驱动方法
US20120249514A1 (en) Organic light emitting display device, data driving apparatus for organic light emitting display device, and driving method thereof
WO2019104840A1 (zh) Oled显示面板的补偿系统及方法
WO2017161650A1 (zh) 感测amoled像素驱动特性的系统及amoled显示装置
CN104751759B (zh) 伽玛基准电压产生电路以及包括该电路的显示装置
KR20150035130A (ko) 비선형 감마 보상 전류 모드 디지털-아날로그 컨버터 및 이를 포함하는 표시 장치
KR20130035782A (ko) 유기발광표시장치 구동방법
KR101073568B1 (ko) 표시 장치 및 그 구동 방법
JP6593899B2 (ja) Ｏｌｅｄ表示パネルのコントラスト比向上方法及びそのシステム
JP2018531425A6 (ja) Ｏｌｅｄ表示パネルのコントラスト比向上方法及びそのシステム
WO2015056446A1 (ja) 表示装置およびその駆動方法
US10249245B1 (en) Compensation system and compensation method for AMOLED
US7782278B2 (en) Intra-pixel convolution for AMOLED
TWI628643B (zh) 有機發光二極體（ｏｌｅｄ）顯示面板以及具有該有機發光二極體（ｏｌｅｄ）顯示面板之ｏｌｅｄ顯示器
KR20200115897A (ko) 표시 장치 및 그 구동 방법
JP5319094B2 (ja) 画像表示装置の駆動方法および画像表示装置
US20160189663A1 (en) Organic light-emitting display and method of driving the same
KR100740086B1 (ko) 데이터 구동장치 및 이를 이용한 발광 표시 장치

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17933130

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17933130

Country of ref document: EP

Kind code of ref document: A1