WO2019119587A1 - 显示装置的驱动方法及显示装置 - Google Patents

显示装置的驱动方法及显示装置 Download PDF

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Publication number
WO2019119587A1
WO2019119587A1 PCT/CN2018/072825 CN2018072825W WO2019119587A1 WO 2019119587 A1 WO2019119587 A1 WO 2019119587A1 CN 2018072825 W CN2018072825 W CN 2018072825W WO 2019119587 A1 WO2019119587 A1 WO 2019119587A1
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Prior art keywords
grayscale value
display
value
target
maximum
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English (en)
French (fr)
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何怀亮
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HKC Co Ltd
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HKC Co Ltd
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Priority to US16/313,412 priority Critical patent/US11348539B2/en
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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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance 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
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/06—Colour space transformation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the embodiments of the present application relate to the field of display technologies, and relate to, for example, a driving method of a display device and a display device.
  • a liquid crystal display device generally includes a plurality of pixel units, each of which corresponds to a driving voltage according to a requirement for displaying a gray scale value.
  • different driving voltages cause different degrees of change in phase retardation of light of different wavelengths, and the influence on the transmittance of light is also different, so that the user feels a significant decrease in color vividness when viewing a red image.
  • the embodiments of the present application provide a driving method and a display device for a display device, which can solve the influence of high gray scale on the color saturation of a set pixel unit in a large viewing angle, and optimize the display effect of the display device.
  • the embodiment of the present application provides a driving method of a display device, where the display panel includes at least one pixel area and at least one backlight module area, the pixel area and the backlight module area are in one-to-one correspondence, and each of the pixel areas A plurality of pixel units are included, and the driving method includes:
  • the step of matching the display grayscale value group corresponding to the set pixel unit to the target grayscale value group includes:
  • the method further includes:
  • the ratio of the brightness of the adjusted red backlight module to the brightness of the red backlight module before the adjustment is equal to the brightness corresponding to the maximum display gray level value in the display gray scale value group and the target gray scale value group.
  • the ratio of the brightness of the maximum target grayscale value is equal to the ratio of the brightness of the maximum target grayscale value.
  • the minimum display grayscale value in the display grayscale value group is the same as the minimum target grayscale value in the target grayscale value group.
  • the first color space is a red, green and blue RGB color space.
  • the second color space is an LCH color space.
  • the minimum target grayscale value is 0.
  • the maximum display grayscale value is 255.
  • the embodiment of the present application further provides a display device, where the display device includes a display panel, the display panel includes at least one pixel area and at least one backlight module area, and the pixel area and the backlight module area are in one-to-one correspondence, and each The pixel area includes a plurality of pixel units, and the display device includes:
  • a component acquisition module configured to acquire a first component, a second component, and a third component of each of the pixel units in the first color space in the pixel region;
  • a tone saturation acquisition module coupled to the component acquisition module, the tone saturation acquisition module is configured to: according to an average value of the first component of the pixel unit in the pixel region, an average value of the second component, and a third The average value of the components obtains the hue angle value and the saturation in the second color space;
  • a maximum target gray scale obtaining module coupled to the hue saturation module, the maximum target gray scale acquiring module configured to acquire a maximum target of the set pixel unit in the pixel region according to the hue angle value and the saturation Gray scale value;
  • a matching module is connected to the maximum target grayscale obtaining module, and the matching module is configured to match the set grayscale value group corresponding to the set pixel unit to the target grayscale value group according to the maximum target grayscale value;
  • the display grayscale value group is equal to the grayscale value in the target grayscale value group, and the maximum target grayscale value is smaller than the maximum display grayscale value in the display grayscale value group;
  • the driving module is connected to the matching module and the display panel, and the driving module is configured to drive the set pixel unit in the pixel region to display according to the target grayscale value group.
  • the display device further includes:
  • a backlight module is provided to provide a backlight source to the display panel.
  • the matching module is set to:
  • the display device further includes:
  • a backlight brightness adjustment module configured to: after the step of matching the display grayscale value group corresponding to the set pixel unit to the target grayscale value group according to the maximum target grayscale value, according to the display grayscale value
  • the maximum display grayscale value in the group and the maximum target grayscale value in the target grayscale value group adjust the brightness of the red backlight module;
  • control module configured to control a ratio of a brightness of the adjusted red backlight module to a brightness of the red backlight module before the adjustment, equal to a brightness corresponding to the maximum display gray level value in the display grayscale value group, and the target gray level The ratio of the brightness of the largest target grayscale value in the value group.
  • the first color space is a red, green and blue RGB color space.
  • the second color space is an LCH color space.
  • the minimum target grayscale value is 0.
  • the maximum display grayscale value is 255.
  • the embodiment of the present application further provides a driving method of a display device, including:
  • the minimum display grayscale value in the display grayscale value group is the same as the minimum target grayscale value in the target grayscale value group.
  • the first color space is a red, green and blue RGB color space
  • the second color space is an LCH color space.
  • the embodiment of the present application further provides a computer readable storage medium storing computer executable instructions for performing the above method.
  • Embodiments of the present application also provide a display device including one or more processors, a memory, and one or more programs, the one or more programs being stored in a memory when being processed by one or more processors When executed, perform the above method.
  • the embodiment of the present application further provides a computer program product, the computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions, when the program instructions are executed by a computer
  • the computer is caused to perform any of the above methods.
  • the embodiment of the present application provides a driving method and a display device for a display device, which are matched to a target grayscale value group by a set grayscale value group corresponding to a set pixel unit, and the maximum target obtained according to the hue angle value and the saturation degree.
  • the grayscale value is smaller than the maximum display grayscale value in the display grayscale value group, and the set pixel unit in the display panel is driven to display according to the matched target grayscale value group, and the part of the grayscale value group is deleted.
  • the order value effectively eliminates the influence of high gray level on the color saturation of the set pixel unit under the condition of large viewing angle, and optimizes the display effect of the display device.
  • FIG. 1 is a schematic flow chart of a driving method of a display device according to an embodiment.
  • FIG. 2 is a schematic flow chart of another driving method of a display device according to an embodiment.
  • FIG. 3 is a schematic flow chart of another driving method of a display device according to an embodiment.
  • FIG. 4 is a schematic structural diagram of a display device according to an embodiment.
  • FIG. 5A is a schematic structural diagram of another display device according to an embodiment.
  • FIG. 5B is a schematic structural diagram of another display device according to an embodiment.
  • FIG. 6 is a schematic flow chart of another driving method of a display device according to an embodiment.
  • FIG. 7 is a schematic structural diagram of hardware of a display device according to an embodiment.
  • the vividness of the pixel unit can be close to the vividness of the pixel unit in the case of a large viewing angle, that is, in the case of a large viewing angle, the pixel unit is at the driving voltage.
  • the color at the higher (high gray level) is severely offset from the color of the pixel unit at the positive viewing angle, so that the color intensity of the pixel unit at the high gray level is lowered and the color shift is severe.
  • embodiments of the present application provide a display device driving method, a display device, and a display device.
  • FIG. 1 is a schematic flowchart of a method for driving a display device according to an embodiment of the present disclosure.
  • the driving method can be applied to a display device that needs to be driven by a display device, and can be executed by the display device provided in this embodiment.
  • the display device includes a display panel including at least one pixel area and at least one backlight module area, the pixel area and the backlight module area are in one-to-one correspondence, and each of the pixel areas includes a plurality of pixel units.
  • the method includes:
  • Step 110 Acquire a first component, a second component, and a third component of each pixel unit in the first color space in the display panel.
  • Step 120 Acquire a hue angle value and a saturation degree in the second color space according to an average value of the first component of the pixel unit, an average value of the second component, and an average value of the third component.
  • the first color space may be an RGB color space
  • the first component may be an R component
  • the second component may be a G component
  • the third component may be a B component.
  • the RGB color space is defined based on the color recognized by the human eye, wherein the three values of the hue angle value, the brightness, and the saturation are represented together, so that the R component, the G component, and the B component are related to each other, that is, the R component, The G component and the B component are not independent of each other.
  • obtaining a first component, a second component, and a third component of each pixel unit in the first color space in the display panel thereby obtaining an average value of the first component of all pixel units in the display panel, Ave R, The average of the two components Ave G and the average of the third component Ave B.
  • the second color space may be exemplarily set as an LCH color space, and the RGB color space may be converted into an LCH color space (L is brightness, C is saturation, H is a hue angle value), wherein the brightness L, the saturation C, and The hue angle values H are independent of each other, and the determination of the pixel unit parameters in the display panel can be performed according to a single component.
  • the hue angle value H and the saturation C in the second color space may be acquired according to the average value Ave R of the first component of the acquired pixel unit, the average value Ave G of the second component, and the average value Ave B of the third component, for example , H can be equal to f1 (Ave R, Ave G, Ave B), and C can be equal to f2 (Ave R, Ave G, Ave B).
  • Step 130 Acquire a maximum target grayscale value of the set pixel unit according to the hue angle value and the saturation.
  • the maximum target grayscale value of the pixel unit may be obtained according to the obtained hue angle value and saturation in the acquired second color space.
  • the second color space is the LCH color space
  • the pixel unit corresponding to the hue angle value H is 0°
  • the pixel unit presents a pure red color
  • the pixel unit corresponding to the hue angle value H is 90°
  • the pixel unit is pure.
  • the pixel unit when the hue angle value H corresponding to the pixel unit is 180°, the pixel unit presents pure green; when the hue angle value H corresponding to the pixel unit is 270°, the pixel unit presents a pure blue color, with the hue angle of the pixel unit
  • the value H changes from 0° to 360°, and the color of the pixel unit changes from pure red to pure yellow, then to pure green, to gradient to pure blue, then to pure red, and the pixel unit is in the LCH color space.
  • the range of saturation C may be greater than or equal to 0 and less than or equal to 100.
  • the obtained hue angle value H is greater than 0° and less than or equal to 45°, or greater than 315° and less than or equal to 360°, it is determined that the color of the pixel unit in the display panel is close to red, and then the obtained saturation is determined.
  • the range in which the degree C is located for example, when the acquired saturation C is greater than C1 and less than C2 (C2 is greater than C1), it can be determined that the maximum target grayscale value of the set pixel unit is Rx.
  • the maximum target grayscale value Rx can be set to 220, so that the influence of the high grayscale value greater than 220 on the pixel unit saturation in the display panel can be eliminated, and the display effect of the display device is optimized.
  • the determination of the saturation C may be limited according to the user's requirement for setting the saturation of the pixel unit in the display panel, which is not limited in this embodiment of the present application.
  • Step 140 Match the display grayscale value group corresponding to the set pixel unit to the target grayscale value group according to the maximum target grayscale value; wherein, the grayscale value group and the target grayscale value group are equal in number of grayscale values.
  • the maximum target grayscale value is less than the maximum displayed grayscale value in the displayed grayscale value group.
  • the minimum display grayscale value in the displayed grayscale value group can be matched to the minimum target grayscale value.
  • the brightness corresponding to the grayscale value and the minimum target grayscale value in the grayscale value group may be displayed.
  • the brightness corresponding to the maximum target grayscale value and the set gamma value, and the target grayscale values corresponding to the display grayscale values in the grayscale value group are obtained, and the display grays in the grayscale value group are displayed.
  • the order value is matched to the corresponding target gray level value.
  • the maximum display grayscale value in the displayed grayscale value group is matched to the maximum target grayscale value obtained from the hue angle value and the saturation.
  • the maximum target grayscale value obtained according to the hue angle value and the saturation in the target grayscale value group corresponding to the set pixel unit is smaller than the maximum display grayscale value in the display grayscale value group, the high viewing angle is effectively eliminated.
  • the effect of the gray scale on setting the color saturation of the pixel unit optimizes the display effect of the display device.
  • the grayscale value of the pixel unit is different, and the brightness corresponding to the pixel unit is also different.
  • the larger the grayscale value corresponding to the pixel unit the larger the brightness of the pixel unit.
  • the brightness corresponding to the minimum target grayscale value, the brightness corresponding to the maximum target grayscale value, and the set gamma value obtain the target grayscale value corresponding to the displayed grayscale value in the grayscale value group.
  • the set pixel unit may be, for example, a red pixel unit R, and a maximum target gray scale value Rx obtained according to the hue angle value and the saturation may be set, and the brightness corresponding to the maximum target gray scale value Rx may be set to be RLRx.
  • Setting the set gamma value is equal to setting the gamma value of the original gamma curve of the pixel unit R to ⁇ , and setting the minimum target gray level value to 0, then setting the brightness corresponding to the minimum target gray level value to RLO.
  • the target grayscale value a1 corresponding to a may be Equivalent to f(a, RLO, ⁇ , RLRx), that is, a1 is a display grayscale value a in the grayscale value group, a luminance RLO corresponding to the minimum target grayscale value 0, a luminance RLRx corresponding to the maximum target grayscale value Rx, and The function of the gamma value ⁇ of the original gamma curve corresponding to the red pixel unit R, that is, the brightness RLO corresponding to the display gray scale value a and the minimum target gray scale value 0 in the display gray scale value group, and the maximum target gray scale
  • the luminance RLRx corresponding to the value Rx and the gamma value ⁇ of the original gamma curve corresponding to the red pixel unit R are all
  • Table 1 is a correspondence between a display grayscale value group and a target grayscale value group of a pixel unit in a display panel according to the embodiment.
  • the pixel unit R as the red pixel unit R as an example, it is possible to set the display gray scale value group and the target gray scale value group corresponding to the red pixel unit R in the display panel to have 8 bits. It can be seen from Table 1 that the display gray scale value group corresponding to the red pixel unit R of the display panel is equal to the gray scale value of the target gray scale value group, and the red pixel unit in the display panel is caused to avoid the high gray scale value.
  • the problem that R is severely colored in the case of a large viewing angle matches the display grayscale value group corresponding to the red pixel unit R in Table 1 to the target grayscale value group corresponding to the red pixel unit R.
  • the brightness corresponding to the display gray scale value and the minimum target gray scale value in the gray scale value group may be displayed.
  • the brightness corresponding to the maximum target grayscale value and the set gamma value obtain the target grayscale value in the target grayscale value group corresponding to the red pixel unit R.
  • the blue pixel unit B can still be displayed by using the display grayscale value group corresponding to the blue pixel unit B.
  • the green pixel unit G can also utilize the display gray corresponding to the green pixel unit G.
  • the order value group is displayed.
  • the number of bits of the display grayscale value group and the target grayscale value group corresponding to the pixel unit is also not limited.
  • the minimum target grayscale value in the target grayscale value group may be set equal to the minimum display grayscale value in the displayed grayscale value group.
  • the maximum target gray scale value Rx in the target gray scale value group corresponding to the red pixel unit R in the display panel is smaller than the display gray scale value group corresponding to the red pixel unit R.
  • the maximum display grayscale value is displayed.
  • the minimum target grayscale value in the target grayscale value group corresponding to the red pixel unit R may be set equal to the minimum display grayscale value 0 in the display grayscale value group.
  • the span between the minimum target grayscale value and the maximum target grayscale value in the target grayscale value group corresponding to the red pixel unit R is large, and the high grayscale is saturated with the red pixel unit R in the case of eliminating the large viewing angle.
  • the display resolution of the display panel is improved.
  • Step 150 Driving the set pixel unit in the display panel according to the target grayscale value group for display.
  • the set pixel unit may be a red pixel unit R
  • the target gray scale value group corresponding to the red pixel unit R in the display panel obtained according to the above step drives the red pixel unit R in the display panel to display, because the red pixel
  • the maximum target grayscale value Rx obtained according to the hue angle value and the saturation in the target grayscale value group corresponding to the unit R is smaller than the maximum display grayscale value 255 in the display grayscale value group corresponding to the red pixel unit R, and the display is deleted.
  • the high gray scale value in the gray scale value group effectively avoids the color shift problem of the red pixel unit R caused by the high gray scale affecting the color saturation of the red pixel unit R in the large viewing angle, and improves the display effect of the display device.
  • FIG. 2 is a schematic flowchart of a driving method of another display device according to the embodiment.
  • the driving method further includes the following steps:
  • Step 160 Adjust the brightness of the red backlight module according to the maximum display grayscale value in the displayed grayscale value group and the maximum target grayscale value in the target grayscale value group.
  • the ratio of the brightness of the adjusted red backlight module to the brightness of the red backlight module before the adjustment is equal to the brightness corresponding to the maximum display gray level value in the gray scale value group and the maximum target gray level in the target gray scale value group. The ratio of the brightness corresponding to the value.
  • the maximum target grayscale value in the target grayscale value group corresponding to the red pixel unit R in the display panel is smaller than the maximum display grayscale value in the grayscale value group.
  • the display gray scale value group corresponding to the red pixel unit R in the display panel and the target gray scale value group have 8 bits, and the maximum target gray scale value is Rx (Rx is less than 255). That is, the maximum brightness of the red pixel unit R in the display panel is reduced from the brightness RL255 corresponding to the original 255 gray level to the brightness RLRx corresponding to the Rx gray level, so that the backlight brightness enhancement corresponding to the red pixel unit R needs to be supplemented to maintain the display.
  • the original white point in the panel is formed by a mixture of 255 gray-scale red pixel units R, 255 gray-scale blue pixel units B, and 255 gray-scale green pixel units G.
  • the brightness of the red backlight module before adjustment can be set to A, and the brightness of the adjusted red backlight module is A'. Then A and A' need to satisfy the following formula:
  • the ratio of the brightness A' of the adjusted red backlight module to the brightness A of the red backlight module before the adjustment is equal to the brightness RL255 corresponding to the maximum display grayscale value 255 in the grayscale value group and the target grayscale value group.
  • FIG. 3 is a schematic flowchart of a driving method of another display device according to the embodiment, and the method may also be performed by the display device provided in this embodiment.
  • the method includes:
  • Step 310 Divide the pixel unit in the display panel into a plurality of pixel regions, and each of the pixel regions includes a plurality of pixel units.
  • the display panel may include a plurality of pixel units arranged in a matrix, that is, including a plurality of rows and columns of pixel units, and the pixel unit in the display panel may be divided into a plurality of pixel regions, and each of the pixel regions may include a plurality of rows and columns of pixel units. That is, a plurality of pixel units are included in each pixel area.
  • Step 320 Acquire a first component, a second component, and a third component of each pixel unit in the pixel region in the first color space.
  • Step 330 Acquire a hue angle value and a saturation degree in the second color space according to an average value of the first component of the pixel unit in the pixel region, an average value of the second component, and an average value of the third component.
  • the hue angle value H' of the second color space may be acquired according to the average value Ave R' of the first component of the pixel unit in the pixel region, the average value Ave G' of the second component, and the average value Ave B' of the third component And saturation C'.
  • H' may be equal to f1 (Ave R', Ave G', Ave B')
  • C' may be equal to f2 (Ave R', Ave G', Ave B').
  • Step 340 Acquire a maximum target grayscale value of the set pixel unit in the pixel region according to the hue angle value and the saturation.
  • the pixel area of the display panel may be determined.
  • the pixel unit in the color is close to red, and then determines the range in which the acquired saturation is located. For example, when the acquired saturation is greater than C1 and less than C2, the maximum target gray of the red pixel unit R in the pixel region can be determined.
  • the order value is Rx.
  • Step 350 Match a display grayscale value group corresponding to the set pixel unit in the pixel region to a target gray corresponding to the set pixel unit in the pixel region according to a maximum target grayscale value of the set pixel unit in the pixel region. Order value group.
  • the minimum display grayscale value in the set of grayscale values in the set of grayscale values corresponding to the set pixel unit in the pixel region may be matched to the minimum target grayscale value in the target grayscale value group; Setting a maximum display grayscale value in the display grayscale value group corresponding to the pixel unit to match a maximum target grayscale value in the target grayscale value group obtained according to the hue angle value and the saturation; according to the display grayscale value group being greater than The minimum display grayscale value, the display grayscale value smaller than the maximum display grayscale value, the brightness corresponding to the minimum target grayscale value, the brightness corresponding to the maximum target grayscale value, and the set gamma value acquisition and display grayscale value group
  • These display grayscale values correspond to the target grayscale values one by one, and match the displayed grayscale values in the displayed grayscale value group to the target grayscale values.
  • Step 360 Drive a set pixel unit in the pixel area to display according to a target gray scale value group corresponding to the set pixel unit in the pixel area.
  • the target gray scale value group corresponding to the red pixel unit R in the display panel obtained according to the above steps drives the red pixel unit R in the pixel area of the display panel.
  • the maximum target grayscale value obtained according to the hue angle value and the saturation in the target grayscale value group corresponding to the red pixel unit R in the pixel region is smaller than the maximum in the display grayscale value group corresponding to the red pixel unit R.
  • the gray scale value is displayed, which effectively avoids the problem that the high gray scale affects the color shift of the red pixel unit R caused by the color saturation of the red pixel unit R in the pixel region, and improves the display effect of the display device.
  • Step 370 Adjust a corresponding pixel region according to a maximum display grayscale value of a display grayscale value group corresponding to the set pixel unit in the pixel region and a maximum target grayscale value corresponding to the set pixel unit in the pixel region.
  • the brightness of the red backlight module area is a maximum display grayscale value of a display grayscale value group corresponding to the set pixel unit in the pixel region.
  • FIG. 4 is a schematic structural diagram of a display device according to an embodiment of the present disclosure.
  • the display device may be, for example, a liquid crystal display device.
  • the display device may include a display panel and a backlight module 15 located under the display panel.
  • the backlight module 15 is for providing a light source for display to the display panel.
  • the display panel may include an array substrate 16 adjacent to the backlight module, and a color filter substrate 17 (only a partial region is shown) on the side of the array substrate 16 away from the backlight module 15.
  • the backlight module 15 may include a plurality of red backlight modules 151, a green backlight module 152, and a blue backlight module 153.
  • the color filter substrate 17 may correspondingly include a plurality of pixel units 171 (illustratively shown in FIG. 4 Each of the pixel units 171 includes a red pixel unit R, a green pixel unit G, and a blue pixel unit B.
  • the light emitted by the backlight module 15 can be irradiated onto the liquid crystal layer (not shown) between the array substrate 16 and the color filter substrate 17 through the opening region 161 on the array substrate 16 to realize the normal function of the liquid crystal display panel.
  • a region 172 formed by a pixel unit may be provided with a set of backlight module regions A composed of a red backlight module 151, a green backlight module 152, and a blue backlight module 153.
  • the maximum display grayscale value of the display grayscale value group corresponding to the red pixel unit R and the maximum target grayscale value corresponding to the red pixel unit R in the region 172 adjust the brightness of the red backlight module 151 corresponding to the region 172.
  • the original white point in the display panel may be formed by a mixed color of 255 gray scale red pixel unit R, 255 gray scale blue pixel unit B, and 255 gray scale green pixel unit G.
  • FIG. 5A is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the display device includes a display panel including at least one pixel area and at least one backlight module area, the pixel area and the backlight module area are in one-to-one correspondence, and each of the pixel areas includes a plurality of pixel units.
  • the display device includes a component acquisition module 11, a hue saturation acquisition module 12, a maximum target grayscale acquisition module 13, a matching module 14, and a drive module 15.
  • the tone saturation acquisition module 12 is electrically connected to the component acquisition module 11 and the maximum target grayscale acquisition module 13, respectively
  • the matching module 14 is electrically connected to the maximum target grayscale acquisition module 13 and the drive module 15, respectively, and the drive module 15 is also displayed.
  • the panel is electrically connected, and the backlight module is disposed under the display panel to provide a light source for the display panel.
  • the component acquisition module 11 is configured to acquire a first component, a second component, and a third component of each pixel unit in a first color space in a pixel region;
  • the hue saturation obtaining module 12 is configured to: according to the pixel unit in the pixel region The average of the first component, the average of the second component, and the average of the third component obtain a hue angle value and saturation in the second color space;
  • the maximum target grayscale acquisition module 13 is configured to use the hue angle value and saturation Obtaining a maximum target grayscale value of the set pixel unit in the pixel region;
  • the matching module 14 is configured to match the display grayscale value group corresponding to the set pixel unit to the target grayscale value group according to the maximum target grayscale value; wherein, the displaying The grayscale value group is equal to the grayscale value in the target grayscale value group, and the maximum target grayscale value is smaller than the maximum display
  • the display device may be a liquid crystal display device, and the display device includes an array substrate and a color filter substrate, and liquid crystal molecules between the array substrate and the color filter substrate, and the voltage of the liquid crystal molecules between the array substrate and the color filter substrate. Deflection occurs to realize the display function of the liquid crystal display device.
  • the above display device further includes a backlight module 16 configured to provide a backlight source to the display panel.
  • the display device may further include a backlight brightness adjustment module 17 and a control module 18, where the backlight brightness adjustment module is configured to display the corresponding pixel unit according to the maximum target grayscale value.
  • the backlight brightness adjustment module is configured to display the corresponding pixel unit according to the maximum target grayscale value.
  • the control module After the step of matching the grayscale value group to the target grayscale value group, adjusting the brightness of the red backlight module according to the maximum display grayscale value in the displayed grayscale value group and the maximum target grayscale value in the target grayscale value group; the control module
  • the ratio of the brightness of the adjusted red backlight module to the brightness of the red backlight module before the adjustment is equal to the minimum target gray level corresponding to the minimum display gray level value in the gray scale value group and the target gray scale value group. The ratio of the brightness corresponding to the order value.
  • FIG. 6 is a schematic flow chart of another driving method of a display device according to an embodiment of the present invention.
  • the driving method can be applied to a scene in which a display device needs to be driven to perform planar display, and can be executed by the display device provided in this embodiment.
  • the method includes:
  • Step 410 Acquire a first component, a second component, and a third component of each pixel unit in the first color space in the display panel.
  • Step 420 Acquire a hue angle value and a saturation degree in the second color space according to an average value of the first component of the pixel unit, an average value of the second component, and an average value of the third component.
  • Step 430 Acquire a maximum target grayscale value of the set pixel unit according to the hue angle value and the saturation.
  • Step 440 Match the minimum display grayscale value in the displayed grayscale value group to the minimum target grayscale value.
  • Step 450 Acquire and display the gray display in the grayscale value group according to the grayscale value in the grayscale value group, the brightness corresponding to the minimum target grayscale value, the brightness corresponding to the maximum target grayscale value, and the set gamma value.
  • Step 460 Match the display grayscale value in the grayscale value group to the corresponding target grayscale value, where the display grayscale value in the grayscale value group is greater than the minimum display grayscale value, and less than the maximum display grayscale value.
  • Step 470 Match the maximum display grayscale value in the displayed grayscale value group to the maximum target grayscale value; wherein the maximum target grayscale value is smaller than the maximum display grayscale value in the displayed grayscale value group.
  • Step 480 Driving the set pixel unit in the display panel according to the target gray scale value group for display.
  • the set gray scale value group corresponding to the set pixel unit is matched to the set gray scale value group, and the maximum target gray scale value obtained according to the hue angle value and the saturation is smaller than the maximum in the display gray scale value group.
  • the effect of the order on setting the color saturation of the pixel unit optimizes the display effect of the display device.
  • the embodiment further provides a computer readable storage medium storing computer executable instructions for performing any of the above methods.
  • FIG. 7 is a schematic diagram showing the hardware structure of a display device according to the present embodiment. As shown in FIG. 7, the display device includes: one or more processors 710 and a memory 720. One processor 710 is taken as an example in FIG.
  • the display device may further include an input device 730 and an output device 740.
  • the processor 710, the memory 720, the input device 730, and the output device 740 in the display device may be connected by a bus or other means, as exemplified by a bus connection in FIG.
  • Input device 730 can receive input numeric or character information
  • output device 740 can include a display device such as a display screen.
  • the memory 720 is a computer readable storage medium that can be used to store software programs, computer executable programs, and modules.
  • the processor 710 executes various functional applications and data processing by executing software programs, instructions, and modules stored in the memory 720 to implement any of the above embodiments.
  • the memory 720 may include a storage program area and an storage data area, wherein the storage program area may store an operating system, an application required for at least one function; the storage data area may store data created according to usage of the display device, and the like.
  • the memory may include volatile memory such as random access memory (RAM), and may also include non-volatile memory such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
  • Memory 720 can be a non-transitory computer storage medium or a transitory computer storage medium.
  • the non-transitory computer storage medium such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • memory 720 can optionally include memory remotely located relative to processor 710, which can be connected to the display device over a network. Examples of such networks may include the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
  • Input device 730 can be configured to receive input digital or character information and to generate key signal inputs related to user settings and function controls of the display device.
  • the output device 740 can include a display device such as a display screen.
  • the display device of the present embodiment may further include a communication device 750 that transmits and/or receives information over a communication network.
  • a person skilled in the art can understand that all or part of the process of implementing the above embodiment method can be completed by executing related hardware by a computer program, and the program can be stored in a non-transitory computer readable storage medium.
  • the program when executed, may include the flow of an embodiment of the method as described above, wherein the non-transitory computer readable storage medium may be a magnetic disk, an optical disk, a read only memory (ROM), or a random access memory (RAM). Wait.

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Abstract

一种显示装置的驱动方法及显示装置，显示装置包括显示面板，显示面板包括至少一个像素区域和至少一个背光模块区域，像素区域和背光模块区域一一对应，每个像素区域包括多个像素单元，驱动方法包括：获取像素区域中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量；根据像素区域中像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；根据色调角度值和饱和度获取该像素区域中的设定像素单元的最大目标灰阶值；根据最大目标灰阶值将设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，显示灰阶值组与目标灰阶值组中的灰阶值个数相等，最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值；根据目标灰阶值组驱动该像素区域中的设定像素单元进行显示。

Description

显示装置的驱动方法及显示装置 技术领域
本申请实施例涉及显示技术领域，例如涉及一种显示装置的驱动方法及显示装置。
背景技术
随着液晶显示装置的应用越来越广泛，液晶显示装置在大视角情况下的色偏现象已成为液晶显示面板发展急需解决的问题。
液晶显示装置中一般包括多个像素单元，每个像素单元根据显示灰阶值的需求均对应一驱动电压。在大视角情况下，不同的驱动电压使得不同波长光的相位延迟的变化程度不同，对光的穿透率的影响也不同，使得用户在观赏红色影像时感受到色彩鲜艳度明显下降。
发明内容
有鉴于此，本申请实施例提供了一种显示装置的驱动方法及显示装置，可以解决在大视角情况下高灰阶对设定像素单元色彩饱和度的影响，优化了显示装置的显示效果。
本申请实施例提供了一种显示装置的驱动方法，所述显示面板包括至少一个像素区域和至少一个背光模块区域，所述像素区域和所述背光模块区域一一对应，每个所述像素区域包括多个像素单元，所述驱动方法包括：
获取所述像素区域中每个所述像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
根据所述像素区域中所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
根据所述色调角度值和所述饱和度获取该像素区域中的设定像素单元的最大目标灰阶值；
根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，所述显示灰阶值组与所述目标灰阶值组中的灰阶值个数相等，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
根据所述目标灰阶值组驱动该像素区域中的所述设定像素单元进行显示。
可选地，所述将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤包括：
将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中的显示灰阶值一一对应的目标灰阶值；
将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，且小于所述显示灰阶值组中的最大显示灰阶值；
将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值。
可选地，所述根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤之后，还包括：
根据所述设定像素单元对应的所述显示灰阶值组中的最大显示灰阶值和所述目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度；
其中，调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于所述显示灰阶值组中的最大显示灰阶值对应的亮度与所述目标灰阶值组中的最大目标灰阶值对应的亮度的比值。
可选地，所述显示灰阶值组中的最小显示灰阶值与所述目标灰阶值组中的最小目标灰阶值相同。
可选地，所述第一颜色空间为红绿蓝RGB颜色空间。
可选地，所述第二颜色空间为LCH颜色空间。
可选地，所述最小目标灰阶值为0。
可选地，所述最大显示灰阶值为255。
本申请实施例还提供一种显示装置，所述显示装置包括显示面板，所述显示面板包括至少一个像素区域和至少一个背光模块区域，所述像素区域和所述背光模块区域一一对应，每个所述像素区域包括多个像素单元，所述显示装置包括：
分量获取模块，设置为获取所述像素区域中每个所述像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
色调饱和度获取模块，与所述分量获取模块连接，所述色调饱和度获取模 块设置为根据所述像素区域中所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
最大目标灰阶获取模块，与所述色调饱和度模块连接，所述最大目标灰阶获取模块设置为根据所述色调角度值和所述饱和度获取该像素区域中的设定像素单元的最大目标灰阶值；
匹配模块，与所述最大目标灰阶获取模块连接，所述匹配模块设置为根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，所述显示灰阶值组与所述目标灰阶值组中的灰阶值个数相等，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
驱动模块，与所述匹配模块和显示面板连接，驱动模块设置为根据所述目标灰阶值组驱动该像素区域中的所述设定像素单元进行显示。
可选地，所述显示装置还包括：
背光模块，设置为给所述显示面板提供背光光源。
可选地，所述匹配模块是设置为：
将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中的显示灰阶值一一对应的目标灰阶值；
将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，且小于所述显示灰阶值组中的最大显示灰阶值；
将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值。
可选地，所述显示装置还包括：
背光亮度调整模块，设置为在所述根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤之后，根据所述显示灰阶值组中的最大显示灰阶值和所述目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度；
控制模块，设置为控制调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于所述显示灰阶值组中的最大显示灰阶值对应的亮度与所述目标灰阶值组中的最大目标灰阶值对应的亮度的比值。
可选地，所述第一颜色空间为红绿蓝RGB颜色空间。
可选地，所述第二颜色空间为LCH颜色空间。
可选地，所述最小目标灰阶值为0。
可选地，最大显示灰阶值为255。
本申请实施例还提供一种显示装置的驱动方法，包括：
获取显示面板中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
根据所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
根据所述色调角度值和所述饱和度获取设定像素单元的最大目标灰阶值；
将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中的显示灰阶值一一对应的目标灰阶值；
将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，小于所述显示灰阶值组中的最大显示灰阶值；
将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值；其中，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
根据所述目标灰阶值组驱动所述显示面板中的所述设定像素单元进行显示。
可选地，所述显示灰阶值组中的最小显示灰阶值与所述目标灰阶值组中的最小目标灰阶值相同。
可选地，所述第一颜色空间为红绿蓝RGB颜色空间，所述第二颜色空间为LCH颜色空间。
本申请实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述方法。
本申请实施例还提供一种显示设备，该显示设备包括一个或多个处理器、存储器以及一个或多个程序，所述一个或多个程序存储在存储器中，当被一个或多个处理器执行时，执行上述方法。
本申请实施例还提供了一种计算机程序产品，所述计算机程序产品包括存储在非暂态计算机可读存储介质上的计算机程序，所述计算机程序包括程序指 令，当所述程序指令被计算机执行时，使所述计算机执行上述任意一种方法。
本申请实施例提供了一种显示装置的驱动方法及显示装置，通过将设定像素单元对应的显示灰阶值组匹配至目标灰阶值组，且根据色调角度值和饱和度得到的最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值，根据匹配后的目标灰阶值组驱动显示面板中的设定像素单元进行显示，删除了显示灰阶值组中的部分高灰阶值，有效消除了大视角情况下高灰阶对设定像素单元色彩饱和度的影响，优化了显示装置的显示效果。
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图1为一实施例提供的一种显示装置的驱动方法的流程示意图。
图2为一实施例提供的另一种显示装置的驱动方法的流程示意图。
图3为一实施例提供的另一种显示装置的驱动方法的流程示意图。
图4为一实施例提供的一种显示装置的结构示意图。
图5A为一实施例提供的另一种显示装置的结构示意图。
图5B为一实施例提供的另一种显示装置的结构示意图。
图6为一实施例提供的另一种显示装置的驱动方法的流程示意图。
图7为一实施例提供的一种显示设备的硬件结构示意图。
具体实施方式
在显示装置中，当像素单元的驱动电压下降到一定程度时，在大视角情况下像素单元的鲜艳度才能接近正视角时像素单元的鲜艳度，即在大视角情况下，像素单元在驱动电压较高(高灰阶)时的颜色相对于正视角时像素单元的颜色偏移严重，使得大视角情况下像素单元在高灰阶时的色彩鲜艳度下降，色偏严重。为解决该问题，本申请实施例提供了显示装置驱动方法和显示装置以及显示设备。
图1为本申请实施例提供的一种显示装置驱动方法的流程示意图，驱动方法可以应用在需要驱动显示装置进行平面显示的场景，可以由本实施例提供的显示装置来执行。显示装置包括显示面板，显示面板包括至少一个像素区域和至少一个背光模块区域，像素区域和背光模块区域一一对应，每个像素区域包 括多个像素单元。当显示面板中的所有像素单元归属于一个区域时，该方法包括：
步骤110、获取显示面板中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量。
步骤120、根据像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度。
示例性的，第一颜色空间可以是RGB颜色空间，则第一分量可以为R分量，第二分量可以为G分量，第三分量可以为B分量。RGB颜色空间是基于人眼识别的颜色进行定义的，其中将色调角度值、亮度和饱和度三个量放在一起表示，使得R分量、G分量和B分量之间互相关联，即R分量、G分量和B分量互相不独立。
示例性的，获取显示面板中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量，进而获取显示面板中所有像素单元的第一分量的平均值Ave R、第二分量的平均值Ave G和第三分量的平均值Ave B。可以示例性地设置第二颜色空间为LCH颜色空间，可以将RGB颜色空间转换至LCH颜色空间(L为亮度，C为饱和度，H为色调角度值)，其中的亮度L、饱和度C和色调角度值H都是相互独立的，可以依据单个分量进行显示面板中像素单元参数的判定。根据获取的像素单元的第一分量的平均值Ave R、第二分量的平均值Ave G和第三分量的平均值Ave B可以获取第二颜色空间中的色调角度值H和饱和度C，例如，H可以等于f1(Ave R，Ave G，Ave B)，C可以等于f2(Ave R，Ave G，Ave B)。
步骤130、根据色调角度值和饱和度获取设定像素单元的最大目标灰阶值。
可以根据获取的第二颜色空间中的色调角度值和饱和度获取像素单元的最大目标灰阶值。参照第二颜色空间为LCH颜色空间时，且当像素单元对应的色调角度值H为0°时，像素单元呈现纯正红色；当像素单元对应的色调角度值H为90°时，像素单元呈现纯正黄色；当像素单元对应的色调角度值H为180°时，像素单元呈现纯正绿色；当像素单元对应的色调角度值H为270°时，像素单元呈现纯正蓝色，随着像素单元的色调角度值H从0°变化至360°，像素单元呈现的颜色由纯正红色渐变至纯正黄色、再渐变至纯正绿色、在渐变至纯正蓝色、再渐变回纯正红色，且像素单元在LCH颜色空间中的饱和度C的范围可 以是大于等于0，小于等于100。
示例性的，可以当获取的色调角度值H大于0°且小于等于45°，或者大于315°且小于等于360°时，判定显示面板中的像素单元呈现的颜色接近红色，再判定获取的饱和度C所处的范围，例如当获取的饱和度C大于C1，小于C2时(C2大于C1)，则可以判定设定像素单元的最大目标灰阶值为Rx。
示例性的，可以设置最大目标灰阶值Rx的大小为220，这样可以消除大于220的高灰阶值对显示面板中设定像素单元饱和度的影响，优化显示装置的显示效果。
对饱和度C的判定可以根据用户对显示面板中设定像素单元的饱和度的需求进行具体范围的限定，本申请实施例对此不作限定。
步骤140、根据最大目标灰阶值将设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，显示灰阶值组与目标灰阶值组中的灰阶值个数相等，最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值。
可选的，可以将显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值。对于显示灰阶值组中的大于最小显示灰阶值且小于最大显示灰阶值的显示灰阶值，可以根据显示灰阶值组中的这些显示灰阶值、最小目标灰阶值对应的亮度、最大目标灰阶值对应的亮度以及设定伽马值，获取与显示灰阶值组中的这些显示灰阶值一一对应的目标灰阶值，将显示灰阶值组中的这些显示灰阶值匹配至对应的目标灰阶值。将显示灰阶值组中的最大显示灰阶值匹配至根据色调角度值和饱和度获得的最大目标灰阶值。由于设定像素单元对应的目标灰阶值组中的根据色调角度值和饱和度获得的最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值，有效消除了大视角情况下高灰阶对设定像素单元色彩饱和度的影响，优化了显示装置的显示效果。
像素单元的灰阶值不同，像素单元对应呈现出的亮度也不同，像素单元对应的灰阶值越大，像素单元的亮度越大。对于显示面板中的设定像素单元对应的显示灰阶值组中大于最小显示灰阶值，且小于最大显示灰阶值的显示灰阶值，均根据显示灰阶值组中的显示灰阶值、最小目标灰阶值对应的亮度、最大目标灰阶值对应的亮度以及设定的伽马值获取与显示灰阶值组中的显示灰阶值一一对应的目标灰阶值。
示例性的，设定像素单元例如可以是红色像素单元R，可以设置根据色调角度值和饱和度获得的最大目标灰阶值为Rx，则可以设置最大目标灰阶值Rx对应的亮度为RLRx，设置设定伽马值等于设定像素单元R对应原始伽马曲线的伽马值为γ，设置最小目标灰阶值为0，则可以设置最小目标灰阶值对应的亮度为RLO。以红色像素单元R对应的显示灰阶值组中的显示灰阶值a为例，其中a大于最小显示灰阶值0，小于最大显示灰阶值Rx，则a对应的目标灰阶值a1可以等于f(a，RLO，γ，RLRx)，即a1为显示灰阶值组中的显示灰阶值a、最小目标灰阶值0对应的亮度RLO、最大目标灰阶值Rx对应的亮度RLRx以及红色像素单元R对应的原始伽马曲线的伽马值γ的函数，也即a1与显示灰阶值组中的显示灰阶值a、最小目标灰阶值0对应的亮度RLO、最大目标灰阶值Rx对应的亮度RLRx以及红色像素单元R对应的原始伽马曲线的伽马值γ均相关。
表1 像素单元的显示灰阶值组与目标灰阶值组的对应关系
Figure PCTCN2018072825-appb-000001
示例性的，表1为本实施例提供的一种显示面板中的像素单元的显示灰阶值组与目标灰阶值组的对应关系。以设定像素单元为红色像素单元R为例，可以设定显示面板中的红色像素单元R对应的显示灰阶值组和目标灰阶值组的位数均为8比特。从表1中可以看出，显示面板的红色像素单元R对应的显示灰阶值组与目标灰阶值组的灰阶值的个数相等，为了避免高灰阶值导致显示面板中红色像素单元R在大视角情况下色偏严重的问题，将表1中的红色像素单元R对应的显示灰阶值组匹配至红色像素单元R对应的目标灰阶值组。对于显示灰阶值组中的大于最小显示灰阶值，且小于最大显示灰阶值的显示灰阶值，可以根据显示灰阶值组中的显示灰阶值、最小目标灰阶值对应的亮度、最大目标灰阶值对应的亮度以及设定伽马值得到与红色像素单元R对应的目标灰阶值组中的目标灰阶值。
示例性的，参照表1，蓝色像素单元B仍然可以利用该蓝色像素单元B对应的显示灰阶值组进行显示，同样的，绿色像素单元G也可以利用绿色像素单元G对应的显示灰阶值组进行显示。本实施例对像素单元对应的显示灰阶值组和目标灰阶值组的比特数也不作限定。
可选的，可以设置目标灰阶值组中的最小目标灰阶值与显示灰阶值组中的最小显示灰阶值相等。以设定像素单元为红色像素单元R为例，由于显示面板中红色像素单元R对应的目标灰阶值组中的最大目标灰阶值Rx小于红色像素单元R对应的显示灰阶值组中的最大显示灰阶值，为了提高显示面板的显示解析度，可以设置红色像素单元R对应的目标灰阶值组中的最小目标灰阶值等于显示灰阶值组中的最小显示灰阶值0，这样使得红色像素单元R对应的目标灰阶值组中的最小目标灰阶值与最大目标灰阶值之间的跨度较大，在消除了大视角情况下高灰阶对红色像素单元R色彩饱和度的影响的同时，提高了显示面板的显示解析度。
步骤150、根据目标灰阶值组驱动显示面板中的设定像素单元进行显示。
示例性的，设定像素单元可以为红色像素单元R，根据上述步骤得到的显示面板中的红色像素单元R对应的目标灰阶值组驱动显示面板中的红色像素单元R进行显示，由于红色像素单元R对应的目标灰阶值组中的根据色调角度值和饱 和度获得的最大目标灰阶值Rx小于红色像素单元R对应的显示灰阶值组中的最大显示灰阶值255，删除了显示灰阶值组中的部分高灰阶值，有效避免了大视角情况下高灰阶影响红色像素单元R色彩饱和度导致的红色像素单元R的色偏问题，提高了显示装置的显示效果。
可选的，图2为本实施例提供的另一种显示装置的驱动方法的流程示意图，与上述实施例不同的是，该驱动方法还包括如下步骤：
步骤160、根据显示灰阶值组中的最大显示灰阶值和目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度。其中，调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于显示灰阶值组中的最大显示灰阶值对应的亮度与目标灰阶值组中的最大目标灰阶值对应的亮度的比值。
以设定像素单元为红色像素单元R为例，由于显示面板中的红色像素单元R对应的目标灰阶值组中的最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值，以显示灰阶值组和显示面板中的红色像素单元R对应的显示灰阶值组和目标灰阶值组的位数均为8比特，最大目标灰阶值为Rx为例(Rx小于255)，即显示面板中的红色像素单元R的最大亮度由原来255灰阶对应的亮度RL255降低为Rx灰阶对应的亮度RLRx，这样就需要辅以与红色像素单元R对应的背光亮度提升才能维持显示面板中的原白点由255灰阶红色像素单元R、255灰阶蓝色像素单元B和255灰阶绿色像素单元G混色形成。示例性的，可以设定调整前的红色背光模块的亮度为A，调整后的红色背光模块的亮度为A’，则A和A’需要满足以下公式：
Figure PCTCN2018072825-appb-000002
即调整后的红色背光模块的亮度A’与调整前的红色背光模块的亮度A的比值，等于显示灰阶值组中的最大显示灰阶值255对应的亮度RL255与目标灰阶值组中的最大目标灰阶值Rx对应的亮度的比值RLRx。
可选的，图3为本实施例提供的另一种显示装置的驱动方法的流程示意图，该方法同样可以由本实施例提供的显示装置来执行。该方法包括：
步骤310、将显示面板中的像素单元划分为多个像素区域，每个像素区域中 包括多个像素单元。
显示面板可以包括多个矩阵排列的像素单元，即包括多行多列像素单元，可以将显示面板中的像素单元划分为多个像素区域，每个像素区域中可以包括多行多列像素单元，即每个像素区域中包括多个像素单元。
步骤320、获取像素区域中的每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量。
获取划分后每个像素区域中的每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量，进而可以获取该像素区域中所有像素单元的第一分量的平均值Ave R’、第二分量的平均值Ave G’和第三分量的平均值Ave B’。
步骤330、根据像素区域中的像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度。
可以根据像素区域中的像素单元的的第一分量的平均值Ave R’、第二分量的平均值Ave G’和第三分量的平均值Ave B’获取第二颜色空间的色调角度值H’和饱和度C’。示例性的，H’可以等于f1(Ave R’，Ave G’，Ave B’)，C’可以等于f2(Ave R’，Ave G’，Ave B’)。
步骤340、根据色调角度值和饱和度获取该像素区域中的设定像素单元的最大目标灰阶值。
示例性的，以设定像素单元为红色像素单元R为例，当获取的色调角度值大于0°且小于等于45°，或者大于315°且小于等于360°时，可以判定显示面板该像素区域中的像素单元呈现的颜色接近红色，再判定获取的饱和度所处的范围，例如当获取的饱和度大于C1，小于C2时，则可以判定该像素区域中的红色像素单元R的最大目标灰阶值为Rx。
步骤350、根据像素区域中的设定像素单元的最大目标灰阶值将该像素区域中的设定像素单元对应的显示灰阶值组匹配至该像素区域中的设定像素单元对应的目标灰阶值组。
示例性的，同样可以根据该像素区域中设定像素单元对应的显示灰阶值组中的最小显示灰阶值匹配至目标灰阶值组中的最小目标灰阶值；将该像素区域中的设定像素单元对应的显示灰阶值组中的最大显示灰阶值匹配至根据色调角 度值和饱和度获得的目标灰阶值组中的最大目标灰阶值；根据显示灰阶值组中大于最小显示灰阶值，小于最大显示灰阶值的显示灰阶值、最小目标灰阶值对应的亮度、最大目标灰阶值对应的亮度以及设定的伽马值获取与显示灰阶值组中的这些显示灰阶值一一对应的目标灰阶值，并将显示灰阶值组中的这些显示灰阶值匹配至目标灰阶值。
步骤360、根据像素区域中的设定像素单元对应的目标灰阶值组驱动该像素区域中的设定像素单元进行显示。
示例性的，以设定像素单元为红色像素单元R为例，根据上述步骤得到的显示面板中的红色像素单元R对应的目标灰阶值组驱动显示面板该像素区域中的红色像素单元R进行显示，由于该像素区域中的红色像素单元R对应的目标灰阶值组中的根据色调角度值和饱和度获得的最大目标灰阶值小于红色像素单元R对应的显示灰阶值组中的最大显示灰阶值，有效避免了大视角情况下高灰阶影响该像素区域中红色像素单元R色彩饱和度导致的红色像素单元R的色偏问题，提高了显示装置的显示效果。
步骤370、根据该像素区域中的设定像素单元对应的显示灰阶值组的最大显示灰阶值和该像素区域中的设定像素单元对应的最大目标灰阶值，调整对应该像素区域的红色背光模块区域的亮度。
示例性的，图4为本实施例提供的一种显示装置的结构示意图，显示装置例如可以是液晶显示装置，如图4所示，显示装置可以包括显示面板以及位于显示面板下方的背光模块15，背光模块15用于向显示面板提供显示用的光源。显示面板可以包括临近背光模块的阵列基板16，以及位于阵列基板16远离背光模块15一侧的彩膜基板17(仅示出部分区域)。其中，背光模块15可以包括多个红色背光模块151、绿色背光模块152以及蓝色背光模块153，彩膜基板17上则可以对应包括多个像素单元171(图4中示例性地示出了4个像素单元171)，每个像素单元171包括红色像素单元R、绿色像素单元G和蓝色像素单元B。背光模块15发光的光可以通过阵列基板16上的开口区161照射至位于阵列基板16和彩膜基板17之间的液晶层(未示出)上，实现液晶显示面板的正常功能。
示例性的，如图4所示，对应一像素单元形成的区域172可以设置一组由 红色背光模块151、绿色背光模块152和蓝色背光模块153组成的背光模块区域A，则可以根据区域172中的红色像素单元R对应的显示灰阶值组的最大显示灰阶值和该区域172中的红色像素单元R对应的最大目标灰阶值，调整对应该区域172的红色背光模块151的亮度。
通过将显示面板中的像素单元划分为多个像素区域，并通过调节对应像素单元构成的某一像素区域的红色背光模块的亮度，实现了对显示装置中背光模块亮度较精准地调节，且维持了显示面板中的原白点可以由255灰阶红色像素单元R、255灰阶蓝色像素单元B和255灰阶绿色像素单元G混色形成。
本实施例的附图只是示例性的表示每个元件的大小，并不代表显示面板中每个元件的实际尺寸。
图5A为本实施例提供的一种显示装置的结构示意图。显示装置包括显示面板，显示面板包括至少一个像素区域和至少一个背光模块区域，像素区域和背光模块区域一一对应，每个像素区域包括多个像素单元。如图5A所示，显示装置包括分量获取模块11、色调饱和度获取模块12、最大目标灰阶获取模块13、匹配模块14、和驱动模块15。其中，色调饱和度获取模块12分别与分量获取模块11以及最大目标灰阶获取模块13电连接，匹配模块14分别与最大目标灰阶获取模块13以及驱动模块15电连接，驱动模块15还与显示面板电连接，背光模块设置于显示面板下方，用于为显示面板提供光源。分量获取模块11用于获取一像素区域中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量；色调饱和度获取模块12用于根据该像素区域中像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；最大目标灰阶获取模块13用于根据色调角度值和饱和度获取该像素区域中设定像素单元的最大目标灰阶值；匹配模块14用于根据最大目标灰阶值将设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，显示灰阶值组与目标灰阶值组中的灰阶值个数相等，最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值；驱动模块15用于根据目标灰阶值组驱动该像素区域中的设定像素单元进行显示。示例性的，显示装置可以是液晶显示装置，显示装置包括阵列基板和彩膜基板，以及位于阵列基板和彩膜基板之间的液晶分子， 液晶分子在阵列基板与彩膜基板之间电压的作用下发生偏转，实现液晶显示装置的显示功能。
可选的，参考图5B，上述显示装置还包括背光模块16，设置为给上述显示面板提供背光光源。
可选的，参考图5B，显示装置还可以包括背光亮度调节模块17和控制模块18，背光亮度调整模块用于在所述根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤之后，根据显示灰阶值组中的最大显示灰阶值和目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度；控制模块用于控制调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于显示灰阶值组中的最小显示灰阶值对应的亮度与目标灰阶值组中的最小目标灰阶值对应的亮度的比值。
图6为本实施例提供的另一种显示装置的驱动方法的流程示意图。驱动方法可以应用在需要驱动显示装置进行平面显示的场景，可以由本实施例提供的显示装置来执行。该方法包括：
步骤410、获取显示面板中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量。
步骤420、根据像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度。
步骤430、根据色调角度值和饱和度获取设定像素单元的最大目标灰阶值。
步骤440、将显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值。
步骤450、根据显示灰阶值组中的灰阶值、最小目标灰阶值对应的亮度、最大目标灰阶值对应的亮度以及设定伽马值，获取与显示灰阶值组中的显示灰阶值一一对应的目标灰阶值。
步骤460、将显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，显示灰阶值组中的显示灰阶值大于最小显示灰阶值，小于最大显示灰阶值。
步骤470、将显示灰阶值组中的最大显示灰阶值匹配至最大目标灰阶值；其中，最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值。
步骤480、根据目标灰阶值组驱动显示面板中的设定像素单元进行显示。
本实施例通过将设定像素单元对应的显示灰阶值组匹配至设定的灰阶值组，且根据色调角度值和饱和度得到的最大目标灰阶值小于显示灰阶值组中的最大显示灰阶值，根据匹配后的目标灰阶值组驱动显示面板中的设定像素单元进行显示，删除了显示灰阶值组中的部分高灰阶值，有效消除了大视角情况下高灰阶对设定像素单元色彩饱和度的影响，优化了显示装置的显示效果。
本实施例还提供一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行上述任一方法。
图7是根据本实施例的一种显示设备的硬件结构示意图，如图7所示，该显示设备包括：一个或多个处理器710和存储器720。图7中以一个处理器710为例。
所述显示设备还可以包括：输入装置730和输出装置740。
所述显示设备中的处理器710、存储器720、输入装置730和输出装置740可以通过总线或者其他方式连接，图7中以通过总线连接为例。
输入装置730可以接收输入的数字或字符信息，输出装置740可以包括显示屏等显示设备。
存储器720作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序以及模块。处理器710通过运行存储在存储器720中的软件程序、指令以及模块，从而执行多种功能应用以及数据处理，以实现上述实施例中的任意一种方法。
存储器720可以包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需要的应用程序；存储数据区可存储根据显示设备的使用所创建的数据等。此外，存储器可以包括随机存取存储器(Random Access Memory，RAM)等易失性存储器，还可以包括非易失性存储器，例如至少一个磁盘存储器件、闪存器件或者其他非暂态固态存储器件。
存储器720可以是非暂态计算机存储介质或暂态计算机存储介质。该非暂态计算机存储介质，例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。在一些实施例中，存储器720可选包括相对于处理器710远程设置的存储器，这些远程存储器可以通过网络连接至显示设备。上述网络的实 例可以包括互联网、企业内部网、局域网、移动通信网及其组合。
输入装置730可用于接收输入的数字或字符信息，以及产生与显示设备的用户设置以及功能控制有关的键信号输入。输出装置740可包括显示屏等显示设备。
本实施例的显示设备还可以包括通信装置750，通过通信网络传输和/或接收信息。
本领域普通技术人员可理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来执行相关的硬件来完成的，该程序可存储于一个非暂态计算机可读存储介质中，该程序在执行时，可包括如上述方法的实施例的流程，其中，该非暂态计算机可读存储介质可以为磁碟、光盘、只读存储记忆体(ROM)或随机存储记忆体(RAM)等。

Claims (20)

  1. 一种显示装置的驱动方法，所述显示面板包括至少一个像素区域和至少一个背光模块区域，所述像素区域和所述背光模块区域一一对应，每个所述像素区域包括多个像素单元，所述驱动方法包括：
    获取所述像素区域中每个所述像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
    根据所述像素区域中所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
    根据所述色调角度值和所述饱和度获取该像素区域中的设定像素单元的最大目标灰阶值；
    根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，所述显示灰阶值组与所述目标灰阶值组中的灰阶值个数相等，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
    根据所述目标灰阶值组驱动该像素区域中的所述设定像素单元进行显示。
  2. 根据权利要求1所述的驱动方法，其中，所述将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤包括：
    将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
    根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中的显示灰阶值一一对应的目标灰阶值；
    将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，且小于所述显示灰阶值组中的最大显示灰阶值；
    将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值。
  3. 根据权利要求1所述的驱动方法，其中，所述根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤之后，还包括：
    根据所述设定像素单元对应的所述显示灰阶值组中的最大显示灰阶值和所述目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度；
    其中，调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于所述显示灰阶值组中的最大显示灰阶值对应的亮度与所述目标灰阶值组中的最大目标灰阶值对应的亮度的比值。
  4. 根据权利要求1所述的驱动方法，其中，所述显示灰阶值组中的最小显示灰阶值与所述目标灰阶值组中的最小目标灰阶值相同。
  5. 根据权利要求1所述的驱动方法，其中，所述第一颜色空间为红绿蓝RGB颜色空间。
  6. 根据权利要求1所述的任一驱动方法，其中，所述第二颜色空间为LCH颜色空间。
  7. 根据权利要求2所述的驱动方法，其中，所述最小目标灰阶值为0。
  8. 根据权利要求1所述的驱动方法，其中，所述最大显示灰阶值为255。
  9. 一种显示装置，所述显示装置包括显示面板，所述显示面板包括至少一个像素区域和至少一个背光模块区域，所述像素区域和所述背光模块区域一一对应，每个所述像素区域包括多个像素单元，所述显示装置包括：
    分量获取模块，设置为获取所述像素区域中每个所述像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
    色调饱和度获取模块，与所述分量获取模块连接，所述色调饱和度获取模块设置为根据所述像素区域中所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
    最大目标灰阶获取模块，与所述色调饱和度模块连接，所述最大目标灰阶获取模块设置为根据所述色调角度值和所述饱和度获取该像素区域中的设定像素单元的最大目标灰阶值；
    匹配模块，与所述最大目标灰阶获取模块连接，所述匹配模块设置为根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组；其中，所述显示灰阶值组与所述目标灰阶值组中的灰阶值个数相等，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
    驱动模块，与所述匹配模块和显示面板连接，驱动模块设置为根据所述目标灰阶值组驱动该像素区域中的所述设定像素单元进行显示。
  10. 根据权利要求9所述的显示装置，其中，所述显示装置还包括：
    背光模块，设置为给所述显示面板提供背光光源。
  11. 根据权利要求9所述的显示装置，其中，所述匹配模块是设置为：
    将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
    根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中 的显示灰阶值一一对应的目标灰阶值；
    将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，且小于所述显示灰阶值组中的最大显示灰阶值；
    将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值。
  12. 根据权利要求9所述的显示装置，其中，所述显示装置还包括：
    背光亮度调整模块，设置为在所述根据所述最大目标灰阶值将所述设定像素单元对应的显示灰阶值组匹配至目标灰阶值组的步骤之后，根据所述显示灰阶值组中的最大显示灰阶值和所述目标灰阶值组中的最大目标灰阶值调整红色背光模块的亮度；
    控制模块，设置为控制调整后的红色背光模块的亮度与调整前的红色背光模块的亮度的比值，等于所述显示灰阶值组中的最大显示灰阶值对应的亮度与所述目标灰阶值组中的最大目标灰阶值对应的亮度的比值。
  13. 根据权利要求9所述的显示装置，其中，所述第一颜色空间为红绿蓝RGB颜色空间。
  14. 根据权利要求9任一所述的显示装置，其中，所述第二颜色空间为LCH颜色空间。
  15. 根据权利要求11所述的显示装置，其中，所述最小目标灰阶值为0。
  16. 根据权利要求9所述的驱动方法，其中，最大显示灰阶值为255。
  17. 一种显示装置的驱动方法，包括：
    获取显示面板中每个像素单元在第一颜色空间中的第一分量、第二分量和第三分量；
    根据所述像素单元的第一分量的平均值、第二分量的平均值和第三分量的平均值获取第二颜色空间中的色调角度值和饱和度；
    根据所述色调角度值和所述饱和度获取设定像素单元的最大目标灰阶值；
    将所述显示灰阶值组中的最小显示灰阶值匹配至最小目标灰阶值；
    根据所述显示灰阶值组中的显示灰阶值、所述最小目标灰阶值对应的亮度、所述最大目标灰阶值对应的亮度以及设定伽马值，获取与所述显示灰阶值组中的显示灰阶值一一对应的目标灰阶值；
    将所述显示灰阶值组中的显示灰阶值匹配至对应的目标灰阶值；其中，所述显示灰阶值大于所述显示灰阶值组中的最小显示灰阶值，小于所述显示灰阶 值组中的最大显示灰阶值；
    将所述显示灰阶值组中的最大显示灰阶值匹配至所述最大目标灰阶值；其中，所述最大目标灰阶值小于所述显示灰阶值组中的最大显示灰阶值；
    根据所述目标灰阶值组驱动所述显示面板中的所述设定像素单元进行显示。
  18. 根据权利要求17所述的驱动方法，其中，所述显示灰阶值组中的最小显示灰阶值与所述目标灰阶值组中的最小目标灰阶值相同。
  19. 根据权利要求17所述的驱动方法，其中，所述第一颜色空间为红绿蓝RGB颜色空间，所述第二颜色空间为LCH颜色空间。
  20. 一种计算机可读存储介质，存储有计算机可执行指令，所述计算机可执行指令用于执行权利要求1的方法。
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