WO2017059628A1 - Amoled显示装置及其驱动方法 - Google Patents

Amoled显示装置及其驱动方法 Download PDF

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Publication number
WO2017059628A1
WO2017059628A1 PCT/CN2015/098154 CN2015098154W WO2017059628A1 WO 2017059628 A1 WO2017059628 A1 WO 2017059628A1 CN 2015098154 W CN2015098154 W CN 2015098154W WO 2017059628 A1 WO2017059628 A1 WO 2017059628A1
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Prior art keywords
sub
gamma
voltage curve
pixels
gamma voltage
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Ceased
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PCT/CN2015/098154
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English (en)
French (fr)
Inventor
温亦谦
包玉刚
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/908,126 priority Critical patent/US10255836B2/en
Publication of WO2017059628A1 publication Critical patent/WO2017059628A1/zh
Anticipated expiration legal-status Critical
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—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
    • G09G3/3258—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 voltage across the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3275—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0439—Pixel structures
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Definitions

  • the present invention relates to the field of display technologies, and in particular, to an AMOLED display device and a driving method thereof.
  • 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.
  • PMOLED passive matrix OLED
  • AMOLED active matrix OLED
  • TFT thin film transistor
  • AMOLED display panel is considered to be the third generation display technology after liquid crystal display (LCD) with its advantages of light and thin, active illumination, fast response speed, wide viewing angle, rich color, high brightness and low power consumption.
  • LCD liquid crystal display
  • AMOLED can realize large-size, high-resolution panels, which is the development direction of future display technologies.
  • a common pixel design is to display one pixel composed of three sub-pixels of a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B.
  • a four-color display panel has also appeared.
  • each pixel is composed of four sub-pixels, including a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
  • White sub-pixels the increased white sub-pixels can increase the aperture ratio and color expression of the display panel compared to the three-color display panel. As shown in FIG.
  • the display panel includes a plurality of pixels, and each pixel includes a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel W, each of which The sub-pixels are arranged in a matrix, wherein each row of sub-pixels and the sub-pixels of another row of sub-pixels adjacent thereto are arranged in exactly the same order, and each column of sub-pixels is a sub-pixel of the same color, and each column of sub-pixels is input correspondingly
  • the gamma curve of the color that is, the first column of sub-pixels uses the red gamma curve Red_Gamma, the second column of pixels uses the green gamma curve Green_Gamma, the third column of sub-pixels uses the blue gamma curve Blue_Gamma, and the fourth column of sub-pixels uses the white gamma curve White_Gamma, such a pixel arrangement is
  • An object of the present invention is to provide an AMOLED display device that can be applied to a plurality of display panels using different sub-pixel arrangement modes, thereby reducing production cost and improving product competitiveness.
  • An object of the present invention is to provide an AMOLED driving method, which is applicable to various display panels of different sub-pixel arrangement modes, thereby reducing production cost and improving product competitiveness.
  • an AMOLED display device including:
  • the display panel includes a plurality of array-arranged sub-pixels, the sub-pixels including: a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel;
  • the driving circuit inputs a gamma control signal, and outputs a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve;
  • the driving circuit drives display panels of different sub-pixel arrangement manners according to different gamma control signals.
  • Each row of sub-pixels is alternately arranged in an order of red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels;
  • the gamma control signal is 0, and n is a natural number
  • the driving circuit inputs a red gamma voltage curve and a green gamma voltage to the 4n+1, 4n+2, 4n+3, and 4n+4 column sub-pixels, respectively. Curve, blue gamma voltage curve, and white gamma voltage curve.
  • the odd row sub-pixels are alternately arranged in the order of red sub-pixels and green sub-pixels, and the even-numbered row sub-pixels are alternately arranged in the order of blue sub-pixels and white sub-pixels;
  • the gamma control signal is 1, and n and m are natural numbers, and the driving circuit is to the 2n+1 column 2m+1 row sub-pixel, the 2n+2 column 2m+1 row sub-pixel, and the 2n+1 column.
  • the 2m+2th row and the 2n+2th column 2m+2 row sub-pixels respectively input a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve.
  • the odd-line sub-pixels are alternately arranged in the order of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel, and the even-numbered sub-pixels are a blue sub-pixel, a white sub-pixel, a red sub-pixel, and a green
  • the order of the sub-pixels is alternately repeated;
  • the gamma control signal is 2, and n and m are natural numbers, and the driving circuit is to the 2m+1 row 4n+1 column, the 2m+1 row 4n+2 column, the 2m+1 row 4n+3 column.
  • the 2m+1 row 4n+4 columns respectively input a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve, to the 2m+2 row 4n+1 column, 2m+2 row 4n+2 column, 2m+2
  • the row 4n+3 column and the 2m+2 row 4n+4 column sub-pixels respectively input a blue gamma voltage curve, a white gamma voltage curve, a red gamma voltage curve, and a green gamma voltage curve.
  • the driving circuit also accesses a plurality of red gamma reference voltages, a green gamma reference voltage, a blue gamma reference voltage, and a white gamma reference voltage for generating a red gamma voltage curve, a green gamma voltage curve, Blue gamma voltage curve, and white gamma voltage curve.
  • the invention also provides an AMOLED driving method, comprising the following steps:
  • Step 1 providing an AMOLED display device, including a driving circuit, and a display panel connected to the driving circuit;
  • the display panel includes a plurality of array-arranged sub-pixels, the sub-pixels including: a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel;
  • the driving circuit inputs a gamma control signal, and outputs a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve;
  • Step 2 input a corresponding gamma control signal to the driving circuit according to the sub-pixel arrangement manner of the display panel;
  • Step 3 The driving circuit outputs a corresponding gamma curve according to the input gamma control signal, and drives the display panel to complete the screen display.
  • the sub-pixels in the step 2 are arranged in such a manner that each row of sub-pixels are alternately arranged in the order of red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels, and the selected gamma control signal is 0;
  • n be a natural number
  • the driving circuit inputs a red gamma voltage curve, a green gamma voltage curve, and a blue to the 4n+1, 4n+2, 4n+3, and 4n+4 column sub-pixels, respectively.
  • the arrangement of the sub-pixels in the step 2 is that the odd-numbered sub-pixels are alternately arranged in the order of the red sub-pixels and the green sub-pixels, and the even-numbered sub-pixels are alternately arranged in the order of the blue sub-pixels and the white sub-pixels.
  • the gamma control signal is 1;
  • n and m are natural numbers
  • the driving circuit is to the 2n+1 column 2m+1 row subpixel, the 2n+2 column 2m+1 row subpixel, the 2n+1 column 2m+
  • the 2nd row and the 2n+2th column 2m+2 row sub-pixels respectively input a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve.
  • the arrangement of the sub-pixels in the step 2 is that the odd-numbered sub-pixels are alternately arranged in the order of the red sub-pixel, the green sub-pixel, the blue sub-pixel, and the white sub-pixel, and the even-numbered sub-pixels are blue sub-pixels and white.
  • the sub-pixel, the red sub-pixel, and the green sub-pixel are alternately arranged in an alternating manner, and the selected gamma control signal is 2;
  • n and m are natural numbers
  • the driving circuit is 4n+1 to the 2m+1 row.
  • Column, 2m+1 row 4n+2 column, 2m+1 row 4n+3 column, and 2m+1 row 4n+4 column respectively input red gamma voltage curve, green gamma voltage curve, blue gamma Voltage curve and white gamma voltage curve, 4n+1 column in 2m+2 row, 4n+2 column in 2m+2 row, 4n+3 column in 2m+2 row, and 4n+3 row in 2m+2 row
  • the column sub-pixels respectively input a blue gamma voltage curve, a white gamma voltage curve, a red gamma voltage curve, and a green gamma voltage curve.
  • the driving circuit In the step 3, the driving circuit generates a red gamma voltage curve and a green gamma voltage according to the plurality of red gamma reference voltages, the green gamma reference voltage, the blue gamma reference voltage, and the white gamma reference voltage respectively. Curve, blue gamma voltage curve, and white gamma voltage curve.
  • the invention also provides an AMOLED driving method, comprising the following steps:
  • Step 1 providing an AMOLED display device, including a driving circuit, and a display panel connected to the driving circuit;
  • the display panel includes a plurality of array-arranged sub-pixels, the sub-pixels including: a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel;
  • the driving circuit inputs a gamma control signal, and outputs a red gamma voltage curve, a green gamma voltage curve, a blue gamma voltage curve, and a white gamma voltage curve;
  • Step 2 input a corresponding gamma control signal to the driving circuit according to the sub-pixel arrangement manner of the display panel;
  • Step 3 The driving circuit outputs a corresponding gamma curve according to the input gamma control signal, and drives the display panel to complete the screen display;
  • the sub-pixels in the step 2 are arranged in such a manner that each row of sub-pixels is alternately arranged in the order of red sub-pixels, green sub-pixels, blue sub-pixels, and white sub-pixels, and the selected gamma control signal is 0. ;
  • n be a natural number
  • the driving circuit inputs a red gamma voltage curve, a green gamma voltage curve, and a blue to the 4n+1, 4n+2, 4n+3, and 4n+4 column sub-pixels, respectively.
  • the driving circuit in the step 3 generates a red gamma voltage curve and a green gamma according to the plurality of red gamma reference voltages, green gamma reference voltages, blue gamma reference voltages, and white gamma reference voltages respectively. Horse voltage curve, blue gamma voltage curve, and white gamma voltage curve.
  • the present invention provides an AMOLED display device that controls the output of a gamma curve by adding a gamma control signal, and selects a value of a gamma control signal according to a sub-pixel arrangement of the display panel, different gamma
  • the value of the horse control signal corresponds to the output of different control gamma curves, which can drive the display panels of different sub-pixel arrangement modes, and at the same time, the production cost can be reduced and the product competitiveness can be improved.
  • the invention also provides an AMOLED driver The method can drive a plurality of display panels with different sub-pixel arrangement modes, thereby reducing production cost and improving product competitiveness.
  • FIG. 1 is a schematic view of a conventional AMOLED display device
  • 2-3 are schematic diagrams of an existing AMOLED display panel having staggered pixel structures
  • FIG. 4 is a schematic view of a first embodiment of an AMOLED display device of the present invention.
  • FIG. 5 is a schematic diagram of a gamma curve output of a first embodiment of an AMOLED display device of the present invention.
  • FIG. 6 is a schematic view of a second embodiment of an AMOLED display device of the present invention.
  • FIG. 7 is a schematic diagram of a gamma curve output of a second embodiment of an AMOLED display device of the present invention.
  • FIG. 8 is a schematic diagram of a third embodiment of an AMOLED display device of the present invention.
  • FIG. 9 is a schematic diagram of a gamma curve output of a third embodiment of an AMOLED display device of the present invention.
  • FIG. 10 is a flowchart of an AMOLED driving method of the present invention.
  • the present invention first provides an AMOLED display device, including:
  • the display panel 20 includes a plurality of arrayed sub-pixels, the sub-pixels including: a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel W;
  • the driving circuit 10 inputs a gamma control signal Gamma_change, and outputs a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, and a blue gamma voltage curve.
  • Red_Gamma a red gamma voltage curve
  • Green_Gamma a green gamma voltage curve
  • the driving circuit 10 drives the display panel 20 of different sub-pixel arrangement according to different gamma control signals Gamma_change.
  • the display panel adopts four-color display, and the aperture ratio and color expression of the display panel can be improved by adding white sub-pixels, and the arrangement manner of the sub-pixels can be selected in a plurality of manners including staggered arrangement, corresponding to one sub-pixel.
  • the arrangement is provided with a corresponding value of the gamma control signal Gamma_change.
  • the sub-pixels are arranged in such a manner that each row of sub-pixels is in accordance with a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel W.
  • the output mode of the gamma curve is such that n is a natural number, and the drive circuit 10 inputs red gamma voltages to the 4n+1, 4n+2, 4n+3, and 4n+4 column sub-pixels, respectively.
  • the column sub-pixels respectively provide a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma.
  • the AMOLED display device of the present invention may also employ staggered sub-pixels.
  • the second embodiment of the present invention is arranged in such a manner that the sub-pixels are arranged in an odd-numbered sub-pixel with a red sub-pixel R and a green sub-pixel.
  • the order of the pixels G is alternately and repeatedly arranged, and the even-numbered row sub-pixels are alternately arranged in the order of the blue sub-pixel B and the white sub-pixel W, and the corresponding gamma control signal Gamma_change is 1, in which case the output of the gamma curve is
  • n and m are natural numbers
  • the drive circuit 10 is to the 2n+1 column 2m+1 row subpixel, the 2n+2 column 2m+1 row subpixel, and the 2n+1 column 2m+2 row.
  • the 2m+2th row sub-pixels of the 2n+2th column respectively input a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma.
  • the gamma curve provided is different for scanning the odd-numbered rows and the even-numbered rows of the display panel, wherein the driving circuit 10 scans the odd-numbered rows to the 2n+1th column and the 2nth of the scanning row.
  • the +2 column sub-pixel provides a red gamma voltage curve Red_Gamma and a green gamma voltage curve Green_Gamma.
  • the driving circuit 10 When the even-numbered rows are scanned, the driving circuit 10 provides blue to the 2n+1th column and the 2n+2th column sub-pixel of the scanning line.
  • FIG. 8 is a third embodiment of the present invention.
  • the arrangement of the sub-pixels is an odd row.
  • the sub-pixels are alternately arranged in the order of the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B, and the white sub-pixel W, and the even-numbered sub-pixels are the blue sub-pixel B, the white sub-pixel W, and the red sub-pixel R.
  • the selected gamma control signal Gamma_change is 2, n and m are natural numbers, and the drive circuit 10 goes to the 2m+1 row 4n+1 column, the 2m+1 row 4n+2 columns, 2m+1 rows 4n+3 columns, and 2m+1 rows 4n+4 columns respectively input red gamma voltage curve Red_Gamma, green gamma voltage curve Green_Gamma, blue gamma voltage curve Blue_Gamma, and The white gamma voltage curve White_Gamma, to the 2m+2 row 4n+1 column, the 2m+2 row 4n+2 column, the 2m+2 row 4n+3 column, and the 2m+2 row 4n+4 column subpixel respectively The blue gamma voltage curve Blue_Gamma, the white gamma voltage curve White_Gamma, the red gamma voltage curve Red_Gamma, and the green gamma voltage
  • the gamma curve provided is different for scanning the odd-numbered rows and the even-numbered rows of the display panel, wherein the driving circuit 10 scans the odd-numbered rows to the 4n+1th column and the 4th+th of the scanning row.
  • the 2 column, the 4n+3 column, and the 4n+4 column subpixel provide a red red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma, and an even number
  • the driving circuit 10 supplies a blue gamma voltage curve Blue_Gamma and a white gamma voltage to the 4n+1th column, the 4thth n2th column, the 4th n+3th column, and the 4th nth 4th column subpixel of the scanning line.
  • the driving circuit 10 also accesses a plurality of red gamma reference voltages (eg, VGMA_R1, VGMA_R2, ..., and VGMA_R9), green gamma reference voltages (eg, VGMA_G1, VGMA_G2, ..., and VGMA_G9), and blue gamma Reference voltages (eg, VGMA_B1, VGMA_B2, ..., and VGMA_B9), and white gamma reference voltages (eg, VGMA_W1, VGMA_W2, ..., and VGMA_W9) are used to generate a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, Blue gamma voltage curve Blue_Gamma, and white gamma voltage curve White_Gamma.
  • red gamma reference voltages eg, VGMA_R1, VGMA_R2, ..., and VGMA_R
  • the present invention further provides an AMOLED driving method, including the following steps:
  • Step 1 providing an AMOLED display device, comprising a driving circuit 10, and a display panel 20 connected to the driving circuit 10;
  • the display panel 20 includes a plurality of arrayed sub-pixels, the sub-pixels including: a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel W;
  • the driving circuit 10 inputs a gamma control signal Gamma_change, and outputs a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma;
  • Step 2 according to the sub-pixel arrangement of the display panel 20, input a corresponding gamma control signal Gamma_change to the driving circuit 10;
  • the display panel adopts four-color display, and the aperture ratio and color expression of the display panel can be improved by adding white sub-pixels, and the arrangement manner of the sub-pixels can be selected in a plurality of manners including staggered arrangement, corresponding to one sub-pixel.
  • the arrangement is provided with a corresponding value of the gamma control signal Gamma_change.
  • the sub-pixels are arranged in such a manner that each row of sub-pixels is in accordance with a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and The order of the white sub-pixels W is alternately repeated, and the corresponding gamma control signal Gamma_change is zero.
  • a second embodiment of the AMOLED display device of the present invention adopts staggered sub-pixels arranged in an order of odd sub-pixels in the order of red sub-pixels R and green sub-pixels G.
  • the arrangement is alternately repeated, and the even-row sub-pixels are alternately arranged in the order of the blue sub-pixel B and the white sub-pixel W, and the corresponding gamma control signal Gamma_change is 1.
  • FIG. 8 is a third embodiment of the AMOLED display device of the present invention.
  • the sub-pixels are arranged in an odd row sub-pixel with a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel.
  • the order of the pixels W is alternately and repeatedly arranged, and the even-numbered row sub-pixels are alternately arranged in the order of the blue sub-pixel B, the white sub-pixel W, the red sub-pixel R, and the green sub-pixel G, and the corresponding gamma control signal Gamma_change is 2.
  • Step 3 The driving circuit 10 outputs a corresponding gamma curve according to the input gamma control signal Gamma_change, and drives the display panel 20 to complete the screen display.
  • the driving circuit 10 generates a red gamma voltage curve Red_Gamma and a green gamma according to the plurality of red gamma reference voltages, green gamma reference voltages, blue gamma reference voltages, and white gamma reference voltages respectively.
  • the driving circuit 10 when the gamma control signal Gamma_change is 0, the gamma curve is outputted by setting n to a natural number, and the driving circuit 10 is to 4n+1, 4n+2, 4n+3, and 4n+
  • the four columns of sub-pixels respectively input a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma.
  • the driving circuit 10 is directed to the 4n+1, 4n+2, 4n+3, and 4n+4 of the scanning line.
  • the column sub-pixels respectively provide a red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma.
  • the output mode of the gamma curve is, let n and m be natural numbers, and the driving circuit 10 goes to the 2n+1 column 2m+1 row sub-pixel, the 2n+2 column 2m+ 1 row subpixel, 2n+1 column 2m+2 row, and 2n+2 column 2m+2 row subpixel input red gamma voltage curve Red_Gamma, green gamma voltage curve Green_Gamma, blue gamma voltage Curve Blue_Gamma, and white gamma voltage curve White_Gamma.
  • the gamma curve provided is different for scanning the odd-numbered rows and the even-numbered rows of the display panel, wherein the driving circuit 10 scans the odd-numbered rows to the 2n+1th column and the 2nth of the scanning row.
  • the +2 column sub-pixel provides a red gamma voltage curve Red_Gamma and a green gamma voltage curve Green_Gamma.
  • the driving circuit 10 provides blue to the 2n+1th column and the 2n+2th column sub-pixel of the scanning line.
  • the gamma curve provided is different for scanning the odd-numbered rows and the even-numbered rows of the display panel, wherein the driving circuit 10 scans the odd-numbered rows to the 4n+1th column and the 4th+th of the scanning row.
  • the 2 column, the 4n+3 column, and the 4n+4 column subpixel provide a red red gamma voltage curve Red_Gamma, a green gamma voltage curve Green_Gamma, a blue gamma voltage curve Blue_Gamma, and a white gamma voltage curve White_Gamma, and an even number
  • the driving circuit 10 supplies a blue gamma voltage curve Blue_Gamma and a white gamma voltage to the 4n+1th column, the 4thth n2th column, the 4th n+3th column, and the 4th nth 4th column subpixel of the scanning line.
  • the present invention provides an AMOLED display device that controls the output of a gamma curve by adding a gamma control signal, and selects a value of a gamma control signal according to a sub-pixel arrangement of the display panel, different gamma
  • the value of the control signal corresponds to the output of different control gamma curves, which can drive different display panels of sub-pixel arrangement, and can also reduce production cost and enhance product competitiveness.
  • the invention also provides an AMOLED driving method, which can drive various display panels of different sub-pixel arrangement modes, reduce production cost and improve product competitiveness.

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Abstract

一种AMOLED显示装置及其驱动方法，AMOLED显示装置包括：驱动电路(10)、及与驱动电路(10)相连的显示面板(20)；显示面板(20)包括多个阵列式排布的子像素，包括：红色子像素(R)、绿色子像素(G)、蓝色子像素(B)、及白色子像素(W)；驱动电路(10)输入伽马控制信号(Gamma_change)，输出红色伽马电压曲线(Red_Gamma)、绿色伽马电压曲线(Green_Gamma)、蓝色伽马电压曲线(Blue_Gamma)、及白色伽马电压曲线(White_Gamma)，驱动电路(10)依据不同的伽马控制信号(Gamma_change)驱动不同子像素排列方式的显示面板(20)，能够降低生产成本，提升产品竞争力。

Description

AMOLED显示装置及其驱动方法 技术领域
本发明涉及显示技术领域，尤其涉及一种AMOLED显示装置及其驱动方法。
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显示面板以其轻薄、主动发光、快响应速度、广视角、色彩丰富及高亮度、低功耗等众多优点被认为是继液晶显示器(LCD)之后的第三代显示技术。AMOLED可以实现大尺寸、高分辨率面板，是未来显示技术的发展方向。
在传统的OLED显示屏幕中，常见的像素设计为由红色子像素R、绿色子像素G、和蓝色子像素B三个子像素组成一个像素进行显示。随着用户对于显示屏幕观看感受要求的提高，目前也出现了四色显示面板，四色显示面板中，每个像素由四个子像素组成，包括红色子像素、绿色子像素、蓝色子像素、白色子像素，与三色显示面板相比，增加的白色子像素可以提高显示面板的开口率和色彩表现力。如图1所示，现有的四色显示面板中，该显示面板包括多个像素，每一像素包括红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W，各子像素呈矩阵排列，其中，每一行子像素和与其相邻的另一行子像素的子像素的排列顺序完全相同，每一列子像素均为同一种颜色的子像素，每一列子像素均输入对应颜色的伽马曲线，即第一列子像素使用红色伽马曲线Red_Gamma，第二子像素使用绿色伽马曲线Green_Gamma，第三列子像素使用蓝色伽马曲线Blue_Gamma，第四列子像素使用白色伽马曲线White_Gamma，这样的像素排列结构比较简单，但是显示效果并非最佳。
随着技术的不断发展，如图2及图3所示，出现了交错排列的像素结 构，在交错排列的像素结构中处于同一列的上下相邻的两个子像素的颜色不同，因而无法采用图1所示的传统的伽马曲线的输入方法来进行驱动。
发明内容
本发明的目的在于提供一种AMOLED显示装置，能够适用于采用不同的子像素排列方式的多种显示面板，降低生产成本，提升产品竞争力。
本发明的目的在于提供一种AMOLED驱动方法，适用于不同的子像素排列方式的多种显示面板，降低生产成本，提升产品竞争力。
为实现上述目的，本发明首先提供一种AMOLED显示装置，包括：
驱动电路、及与所述驱动电路相连的显示面板；
所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
所述驱动电路依据不同的伽马控制信号驱动不同子像素排列方式的显示面板。
每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列；
所述伽马控制信号为0，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
所述奇数行子像素以红色子像素、绿色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素的顺序交替重复排列；
所述伽马控制信号为1，设n和m为自然数，所述驱动电路向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
所述奇数行子像素以红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素、红色子像素、及绿色子像素的顺序交替重复排列；
所述伽马控制信号为2，设n和m为自然数，所述驱动电路向第2m+1行4n+1列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2 行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线、白色伽马电压曲线、红色伽马电压曲线、及绿色伽马电压曲线。
所述驱动电路还接入数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别用于生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
本发明还提供一种AMOLED驱动方法，包括如下步骤：
步骤1、提供一AMOLED显示装置，包括驱动电路、及与所述驱动电路相连的显示面板；
所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
步骤2、依据所述显示面板的子像素排列方式向驱动电路输入对应的伽马控制信号；
步骤3、所述驱动电路依据输入的伽马控制信号，输出对应的伽马曲线，驱动显示面板完成画面显示。
所述步骤2中子像素的排列方式为每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，选择的伽马控制信号为0；
所述步骤3中，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
所述步骤2中子像素的排列方式为奇数行子像素以红色子像素、绿色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素的顺序交替重复排列，选择的伽马控制信号为1；
所述步骤3中，设n和m为自然数，所述驱动电路向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
所述步骤2中子像素的排列方式为奇数行子像素以红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素、红色子像素、及绿色子像素的顺序交替重复排列，选择的伽马控制信号为2；
所述步骤3中，设n和m为自然数，所述驱动电路向第2m+1行4n+1 列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线、白色伽马电压曲线、红色伽马电压曲线、及绿色伽马电压曲线。
所述步骤3中驱动电路依据接入的数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
本发明还提供一种AMOLED驱动方法，包括如下步骤：
步骤1、提供一AMOLED显示装置，包括驱动电路、及与所述驱动电路相连的显示面板；
所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
步骤2、依据所述显示面板的子像素排列方式向驱动电路输入对应的伽马控制信号；
步骤3、所述驱动电路依据输入的伽马控制信号，输出对应的伽马曲线，驱动显示面板完成画面显示；
其中，所述步骤2中子像素的排列方式为每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，选择的伽马控制信号为0；
所述步骤3中，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
其中，所述步骤3中驱动电路依据接入的数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
本发明的有益效果：本发明提供的一种AMOLED显示装置，通过增加一伽马控制信号控制伽马曲线的输出，并根据显示面板的子像素排列方式选择伽马控制信号的数值，不同的伽马控制信号的数值对应不同的控制伽马曲线的输出，进而可以驱动不同的子像素排列方式的显示面板，同时还可以降低生产成本，提升产品竞争力。本发明还提供一种AMOLED驱动方 法，该方法能够驱动不同的子像素排列方式的多种显示面板，降低生产成本，提升产品竞争力。
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。
附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明的技术方案及其它有益效果显而易见。
附图中，
图1为现有的AMOLED显示装置的示意图；
图2-3为现有的具有交错排列的像素结构的AMOLED显示面板的示意图；
图4为本发明的AMOLED显示装置的第一实施例的示意图；
图5为本发明的AMOLED显示装置的第一实施例的伽马曲线输出示意图；
图6为本发明的AMOLED显示装置的第二实施例的示意图；
图7为本发明的AMOLED显示装置的第二实施例的伽马曲线输出示意图；
图8为本发明的AMOLED显示装置的第三实施例的示意图；
图9为本发明的AMOLED显示装置的第三实施例的伽马曲线输出示意图；
图10为本发明的AMOLED驱动方法的流程图。
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。
请同时参阅图4、图6、图8，本发明首先提供一种AMOLED显示装置，包括：
驱动电路10、及与所述驱动电路10相连的显示面板20；
所述显示面板20包括多个阵列式排布的子像素，所述子像素包括：红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W；
所述驱动电路10输入伽马控制信号Gamma_change，输出红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线 Blue_Gamma、及白色伽马电压曲线White_Gamma；
所述驱动电路10依据不同的伽马控制信号Gamma_change驱动不同子像素排列方式的显示面板20。
具体的，所述显示面板采用四色显示，通过增加白色子像素可以提高显示面板的开口率和色彩表现力，子像素的排列方式可以选择包括交错排列在内的多种方式，对应一种子像素的排列方式设有一个对应的伽马控制信号Gamma_change的数值。如图4所示为本发明的一实施例，所述子像素的排列方式为：每一行子像素均按照红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W的顺序交替重复排列，依据图4所示的子像素排列方式对应的伽马控制信号Gamma_change为0。在这种情况下，伽马曲线的输出方式为，设n为自然数，所述驱动电路10向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。如图5所示，即对于显示面板的每一次扫描无论是扫描奇数行还是偶数行，所述驱动电路10均向扫描行的第4n+1、4n+2、4n+3、及4n+4列子像素分别提供红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
本发明的AMOLED显示装置还可以采用交错排列的子像素，如图6所示为本发明的第二实施例，所述子像素的排列方式为：奇数行子像素以红色子像素R、绿色子像素G的顺序交替重复排列，偶数行子像素以蓝色子像素B、白色子像素W的顺序交替重复排列，对应的伽马控制信号Gamma_change为1，在这种情况下，伽马曲线的输出方式为，设n和m为自然数，所述驱动电路10向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。请参阅图7，即对于显示面板的扫描奇数行和偶数行，所提供的伽马曲线是不同的，其中扫描奇数行时所述驱动电路10向扫描行的第2n+1列、及第2n+2列子像素提供红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma，扫描偶数行时，所述驱动电路10向扫描行的第2n+1列、及第2n+2列子像素提供蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
请参阅图8为本发明的第三实施例，所述子像素的排列方式为奇数行 子像素以红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W的顺序交替重复排列，偶数行子像素以蓝色子像素B、白色子像素W、红色子像素R、及绿色子像素G的顺序交替重复排列，选择的伽马控制信号Gamma_change为2，设n和m为自然数，所述驱动电路10向第2m+1行4n+1列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线Blue_Gamma、白色伽马电压曲线White_Gamma、红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma。请参阅图9，即对于显示面板的扫描奇数行和偶数行，所提供的伽马曲线是不同的，其中扫描奇数行时所述驱动电路10向扫描行的第4n+1列、第4n+2列、第4n+3列、及第4n+4列子像素提供红色红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma，扫描偶数行时，所述驱动电路10向扫描行的第4n+1列、第4n+2列、第4n+3列、及第4n+4列子像素提供蓝色伽马电压曲线Blue_Gamma、白色伽马电压曲线White_Gamma、红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma。
此外，所述驱动电路10还接入数个红色伽马参考电压(例如：VGMA_R1、VGMA_R2、…及VGMA_R9)、绿色伽马参考电压(例如：VGMA_G1、VGMA_G2、…及VGMA_G9)、蓝色伽马参考电压(例如：VGMA_B1、VGMA_B2、…及VGMA_B9)、及白色伽马参考电压(例如：VGMA_W1、VGMA_W2、…及VGMA_W9)，分别用于生成红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
请参阅图10，本发明还提供一种AMOLED驱动方法，包括如下步骤：
步骤1、提供一AMOLED显示装置，包括驱动电路10、及与所述驱动电路10相连的显示面板20；
所述显示面板20包括多个阵列式排布的子像素，所述子像素包括：红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W；
所述驱动电路10输入伽马控制信号Gamma_change，输出红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma；
步骤2、依据所述显示面板20的子像素排列方式向驱动电路10输入对应的伽马控制信号Gamma_change；
具体的，所述显示面板采用四色显示，通过增加白色子像素可以提高显示面板的开口率和色彩表现力，子像素的排列方式可以选择包括交错排列在内的多种方式，对应一种子像素的排列方式设有一个对应的伽马控制信号Gamma_change的数值。
如图4所示为本发明的AMOLED显示装置的第一实施例，所述子像素的排列方式为：每一行子像素均按照红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W的顺序交替重复排列，对应的伽马控制信号Gamma_change为0。
如图6所示为本发明的AMOLED显示装置的第二实施例，采用交错排列的子像素，所述子像素的排列方式为：奇数行子像素以红色子像素R、绿色子像素G的顺序交替重复排列，偶数行子像素以蓝色子像素B、白色子像素W的顺序交替重复排列，对应的伽马控制信号Gamma_change为1。
如图8所示为本发明的AMOLED显示装置的第三实施例，所述子像素的排列方式为奇数行子像素以红色子像素R、绿色子像素G、蓝色子像素B、及白色子像素W的顺序交替重复排列，偶数行子像素以蓝色子像素B、白色子像素W、红色子像素R、及绿色子像素G的顺序交替重复排列，对应的伽马控制信号Gamma_change为2。
步骤3、所述驱动电路10依据输入的伽马控制信号Gamma_change，输出对应的伽马曲线，驱动显示面板20完成画面显示。
具体的，所述驱动电路10依据接入的数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别生成红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
具体的，当伽马控制信号Gamma_change为0时，所述伽马曲线的输出方式为，设n为自然数，所述驱动电路10向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。如图5所示，即对于显示面板的每一次扫描无论是扫描奇数行还是偶数行，所述驱动电路10均向扫描行的第4n+1、4n+2、4n+3、及4n+4列子像素分别提供红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
当伽马控制信号Gamma_change为1时，伽马曲线的输出方式为，设n和m为自然数，所述驱动电路10向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。请参阅图7，即对于显示面板的扫描奇数行和偶数行，所提供的伽马曲线是不同的，其中扫描奇数行时所述驱动电路10向扫描行的第2n+1列、及第2n+2列子像素提供红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma，扫描偶数行时，所述驱动电路10向扫描行的第2n+1列、及第2n+2列子像素提供蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma。
当伽马控制信号Gamma_change为2时，设n和m为自然数，所述驱动电路10向第2m+1行4n+1列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线Blue_Gamma、白色伽马电压曲线White_Gamma、红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma。请参阅图9，即对于显示面板的扫描奇数行和偶数行，所提供的伽马曲线是不同的，其中扫描奇数行时所述驱动电路10向扫描行的第4n+1列、第4n+2列、第4n+3列、及第4n+4列子像素提供红色红色伽马电压曲线Red_Gamma、绿色伽马电压曲线Green_Gamma、蓝色伽马电压曲线Blue_Gamma、及白色伽马电压曲线White_Gamma，扫描偶数行时，所述驱动电路10向扫描行的第4n+1列、第4n+2列、第4n+3列、及第4n+4列子像素提供蓝色伽马电压曲线Blue_Gamma、白色伽马电压曲线White_Gamma、红色伽马电压曲线Red_Gamma、及绿色伽马电压曲线Green_Gamma。
综上所述，本发明提供的一种AMOLED显示装置，通过增加一伽马控制信号控制伽马曲线的输出，并根据显示面板的子像素排列方式选择伽马控制信号的数值，不同的伽马控制信号的数值对应不同的控制伽马曲线的输出，进而可以驱动不同的子像素排列方式的显示面板，同时还可以降低生产成本，提升产品竞争力。本发明还提供一种AMOLED驱动方法，该方法能够驱动不同的子像素排列方式的多种显示面板，降低生产成本，提升产品竞争力。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明权利要求的保护范围。

Claims (11)

  1. 一种AMOLED显示装置，包括：
    驱动电路、及与所述驱动电路相连的显示面板；
    所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
    所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
    所述驱动电路依据不同的伽马控制信号驱动不同子像素排列方式的显示面板。
  2. 如权利要求1所述的AMOLED显示装置，其中，每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列；
    所述伽马控制信号为0，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  3. 如权利要求1所述的AMOLED显示装置，其中，所述奇数行子像素以红色子像素、绿色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素的顺序交替重复排列；
    所述伽马控制信号为1，设n和m为自然数，所述驱动电路向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  4. 如权利要求1所述的AMOLED显示装置，其中，所述奇数行子像素以红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素、红色子像素、及绿色子像素的顺序交替重复排列；
    所述伽马控制信号为2，设n和m为自然数，所述驱动电路向第2m+1行4n+1列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线、白色伽马电压曲线、红色伽马电压曲线、及绿色伽马电压曲线。
  5. 如权利要求1所述的AMOLED显示装置，其中，所述驱动电路还接入数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别用于生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  6. 一种AMOLED驱动方法，包括如下步骤：
    步骤1、提供一AMOLED显示装置，包括驱动电路、及与所述驱动电路相连的显示面板；
    所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
    所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
    步骤2、依据所述显示面板的子像素排列方式向驱动电路输入对应的伽马控制信号；
    步骤3、所述驱动电路依据输入的伽马控制信号，输出对应的伽马曲线，驱动显示面板完成画面显示。
  7. 如权利要求6所述的AMOLED驱动方法，其中，
    所述步骤2中子像素的排列方式为每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，选择的伽马控制信号为0；
    所述步骤3中，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  8. 如权利要求6所述的AMOLED驱动方法，其中，
    所述步骤2中子像素的排列方式为奇数行子像素以红色子像素、绿色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素的顺序交替重复排列，选择的伽马控制信号为1；
    所述步骤3中，设n和m为自然数，所述驱动电路向第2n+1列2m+1行子像素、第2n+2列2m+1行子像素、第2n+1列第2m+2行、及第2n+2列第2m+2行子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  9. 如权利要求6所述的AMOLED驱动方法，其中，所述步骤2中子像素的排列方式为奇数行子像素以红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，偶数行子像素以蓝色子像素、白色子像素、红色子像素、及绿色子像素的顺序交替重复排列，选择的伽马控制 信号为2；
    所述步骤3中，设n和m为自然数，所述驱动电路向第2m+1行4n+1列、第2m+1行4n+2列、第2m+1行4n+3列、及第2m+1行4n+4列分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线，向第2m+2行4n+1列、第2m+2行4n+2列、第2m+2行4n+3列、及第2m+2行4n+4列子像素分别输入蓝色伽马电压曲线、白色伽马电压曲线、红色伽马电压曲线、及绿色伽马电压曲线。
  10. 如权利要求6所述的AMOLED驱动方法，其中，所述步骤3中驱动电路依据接入的数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
  11. 一种AMOLED驱动方法，包括如下步骤：
    步骤1、提供一AMOLED显示装置，包括驱动电路、及与所述驱动电路相连的显示面板；
    所述显示面板包括多个阵列式排布的子像素，所述子像素包括：红色子像素、绿色子像素、蓝色子像素、及白色子像素；
    所述驱动电路输入伽马控制信号，输出红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
    步骤2、依据所述显示面板的子像素排列方式向驱动电路输入对应的伽马控制信号；
    步骤3、所述驱动电路依据输入的伽马控制信号，输出对应的伽马曲线，驱动显示面板完成画面显示；
    其中，所述步骤2中子像素的排列方式为每一行子像素均按照红色子像素、绿色子像素、蓝色子像素、及白色子像素的顺序交替重复排列，选择的伽马控制信号为0；
    所述步骤3中，设n为自然数，所述驱动电路向第4n+1、4n+2、4n+3、及4n+4列子像素分别输入红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线；
    其中，所述步骤3中驱动电路依据接入的数个红色伽马参考电压、绿色伽马参考电压、蓝色伽马参考电压、及白色伽马参考电压分别生成红色伽马电压曲线、绿色伽马电压曲线、蓝色伽马电压曲线、及白色伽马电压曲线。
PCT/CN2015/098154 2015-10-10 2015-12-22 Amoled显示装置及其驱动方法 Ceased WO2017059628A1 (zh)

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