WO2019184382A1 - 液晶显示装置的驱动方法及液晶显示装置 - Google Patents

液晶显示装置的驱动方法及液晶显示装置 Download PDF

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WO2019184382A1
WO2019184382A1 PCT/CN2018/115306 CN2018115306W WO2019184382A1 WO 2019184382 A1 WO2019184382 A1 WO 2019184382A1 CN 2018115306 W CN2018115306 W CN 2018115306W WO 2019184382 A1 WO2019184382 A1 WO 2019184382A1
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Prior art keywords
gray scale
scale data
color
data group
pixel
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PCT/CN2018/115306
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English (en)
French (fr)
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康志聪
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惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Priority to US17/041,138 priority Critical patent/US11322101B2/en
Publication of WO2019184382A1 publication Critical patent/WO2019184382A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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
    • 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
    • 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
    • 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
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0235—Field-sequential colour display
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0252—Improving the response speed
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • 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 present application relates to the field of liquid crystal display technology, and in particular, to a method for driving a liquid crystal display device and a liquid crystal display device.
  • the large viewing angle and the positive viewing role are changed.
  • the red, green, and blue colors are more serious than other color systems, and the brightness of the viewing angle of the grayscale liquid crystal display.
  • the rapid saturation increase of the ratio makes the difference between the positive viewing angle brightness and the side viewing angle brightness of the lower gray scale value larger.
  • the current method for improving the color shift is to subdivide each sub-pixel into one main pixel and sub-pixel, and then drive the main pixel with a relatively high driving voltage, and drive the sub-pixel with a relatively low driving voltage, the main pixel and The sub-pixels together display one sub-pixel. Further, when the main pixel and the sub-pixel are respectively driven by the relatively high driving voltage and the relatively low driving voltage, the relationship between the luminance in the front view and the corresponding gray scale can be maintained.
  • the method is generally in the first half of the gray scale, the main pixel drives the display with a relatively high driving voltage, the sub-pixel does not display, the brightness of the whole sub-pixel is half of the brightness of the main pixel; in the latter half of the gray level, the main pixel is relatively high.
  • the driving voltage drives the display, and the sub-pixel drives the display with a relatively low driving voltage.
  • the brightness of the entire sub-pixel is half the sum of the brightness of the main pixel plus the brightness of the sub-pixel.
  • the present application provides a driving method of a liquid crystal display device and a liquid crystal display device, which can reduce the cost of the role and ensure that the cost is not improved.
  • the present application provides a driving method of a liquid crystal display device, the liquid crystal display device includes a display module, and the display module includes a plurality of pixel units arranged in an array, and the driving method includes:
  • the first gray scale data set and the second gray scale data set are respectively output and displayed in two consecutive time periods.
  • the present application further provides a driving method of a liquid crystal display device, the liquid crystal display device includes a display module, and the display module includes a plurality of pixel units arranged in an array, and the driving method includes:
  • n is an integer greater than or equal to 1.
  • the present application further provides a liquid crystal display device, the liquid crystal display device comprising:
  • Display module set to display graphic information
  • a driving module configured to receive, process, and output drive data to control the display module to work normally
  • a backlight module configured to convert a direct current voltage into a high frequency, high voltage alternating current lighting backlight unit
  • the display module includes a plurality of pixel units arranged in an array
  • the pixel unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel;
  • the driving module includes a grayscale data decomposition processing unit
  • the gray scale data decomposition processing unit is configured to decompose the input original gray scale data group corresponding to each of the pixel units into two sets of new gray scale data groups, and output the red sub in each of the pixel units Gray scale values of pixels, green sub-pixels, and blue sub-pixels in two consecutive time periods;
  • the gray scale data decomposition processing unit is connected to all the red sub-pixels, green sub-pixels, and blue sub-pixels in the display module;
  • the backlight module includes a power processing unit and the backlight unit.
  • the above method and device decomposes a low gray scale original gray scale data group corresponding to a red sub-pixel, a green sub-pixel and a blue sub-pixel in a pixel unit into a set of all-low gray scale values and a set of removal minimum non-zero gray
  • a grayscale value group of order values containing 0 gray scale values is presented. Due to the rapid saturation enhancement of the viewing angle luminance ratio of the gray scale liquid crystal display, the difference between the positive viewing angle luminance and the side viewing angle luminance of the lower gray scale value is larger, so that the luminance ratio of the main color tone is increased, so that the main viewing angle of the large viewing angle is low. The color shift effect affected by the voltage sub-pixel is improved.
  • the main signal brightness display in the case of a large viewing angle can be increased, but also the brightness of the overall image display can be maintained by raising the brightness of the backlight to twice the original brightness, and by increasing the driving frequency to the original driving frequency. Double, can maintain the speed of the overall picture quality display. At the same time, this application does not require additional wiring on the liquid crystal display panel.
  • 1 is a schematic view showing the module structure of a liquid crystal display device
  • FIG. 2 is a flowchart of a driving method for determining a type of display color of a corresponding pixel unit of an original gray scale data group
  • FIG. 3 is a flow chart of a driving method for determining minimum gray level data in a ternary mixed color gray scale data group
  • FIG. 4 is a flow chart of a driving method for determining a minimum non-zero gray scale data in a binary mixed color gray scale data set.
  • the embodiment of the present application provides a driving method of a liquid crystal display device.
  • the liquid crystal display device includes a display module 100.
  • the display module 100 includes a plurality of pixel units 110 arranged in an array.
  • the driving method includes:
  • the first gray scale data set and the second gray scale data set are respectively output and displayed in two consecutive time periods.
  • the pixel unit 110 may be a combination of a red sub-pixel 111, a green sub-pixel 112, and a blue sub-pixel 113, or may be another color sub-pixel combination type.
  • the pixel unit 110 generates a color for each gray scale value group received.
  • the gray scale value group is generated by gray scale data input to the liquid crystal display device.
  • the grayscale value set includes a red grayscale value, a green grayscale value, and a blue grayscale value.
  • the color generated by the pixel unit 110 may be any one of three types: unit color, binary color mixing, and ternary color mixing, or may be a combined color mixing type of sub-pixels of non-unit colors.
  • the type of the color corresponding to the original gray scale data is determined according to the number of 0 gray scale data in the original gray scale data group to be displayed by each of the pixel units 110.
  • the method of determination is as follows:
  • the color corresponding to the original gray scale data group is a ternary mixed color.
  • the color corresponding to the original gray scale data group is a binary color mixture.
  • the color corresponding to the original gray scale data group is a unit color.
  • an embodiment method step of determining a type of a color corresponding to the original gray scale data group to be displayed by each of the pixel units 110 includes S110-S170.
  • Step S110 It is determined whether the 0th grayscale data is included in the original grayscale data group to be displayed by each of the pixel units 110. If not, step S140 is performed; otherwise, step S120 is performed.
  • a certain color is a ternary color mixing type, indicating that the color includes red, green, and blue components.
  • the corresponding red, green, and blue sub-pixels in the pixel unit The grayscale value of the pixel is not 0, that is, the corresponding original grayscale data group does not contain 0 grayscale data, so the original grayscale dataset can be judged by judging whether the original grayscale dataset contains 0 grayscale data. Whether the grayscale data set is a ternary mixed color grayscale data set.
  • Step S120 It is determined whether the original gray scale data group to be displayed by each of the pixel units 110 contains only one of the 0 gray scale data, and if yes, step S150 is performed; otherwise, step S130 is performed.
  • a certain color is a binary color mixing type, indicating that the color includes any two colors of three components of red, green, and blue.
  • the red sub-pixel and the green sub-pixel in the corresponding pixel unit Only one of the grayscale values of the blue sub-pixels is 0, and the other two are not 0, that is, the corresponding original gray-scale data group contains only one gray-scale data, so the original gray-scale data can be judged by Whether the group contains only one gray scale data to determine whether the original gray scale data set is a binary mixed color gray scale data set.
  • Step S130 It is determined whether the original gray scale data group to be displayed in each of the pixel units contains only two zero gray scale data, and if yes, step S160 is performed; otherwise, step S170 is performed.
  • a certain color is a unit color type, indicating that the color includes only one of three components of red, green, and blue. In the liquid crystal display field, the red sub-pixel, the green sub-pixel, and the blue in the corresponding pixel unit.
  • the gray scale value of the color sub-pixel is only 0 of the two, and the other one is not 0, that is, the corresponding original gray scale data group contains only two 0 gray scale data, so the original gray scale data can be judged by Whether the group contains only the zero gray scale data to determine whether the original gray scale data group is a unit color gray scale data group.
  • Step S140 It is determined that the color displayed by the pixel unit corresponding to the gray scale data group is a ternary mixed color.
  • Step S150 determining that the color displayed by the pixel unit corresponding to the gray scale data group is a binary color mixture.
  • Step S160 It is determined that the color displayed by the pixel unit corresponding to the gray scale data group is a unit color.
  • Step S170 It is determined that the pixel unit corresponding to the gray scale data group is in a closed state.
  • the grayscale values of the respective sub-pixels of a certain pixel unit are all 0, it indicates that the pixel unit does not bear the display task.
  • the voltage of each sub-pixel of the pixel unit is 0, which is in a closed state, because the light cannot be The pixel unit appears black through the liquid crystal.
  • the pixel unit 110 includes the red sub-pixel 111, the green sub-pixel 112, and the blue sub-pixel 113.
  • the color generated by the pixel unit 110 may be any one of three types: a unit color, a binary color mixing, and a ternary color mixing.
  • the minimum original gray scale data in the original gray scale data group corresponding to the ternary mixed color pixel unit 110 is used as the red subpixel 111, the green subpixel 112, and the blue sub in the pixel unit.
  • the common grayscale data of the pixels 113 constitutes the first grayscale data set.
  • the gray scale data corresponds to the common gray scale data of the sub pixels, and together with the 0 gray scale data, constitutes the second gray scale data group.
  • the minimum non-zero gray scale data in the original gray scale data group corresponding to the binary color mixing pixel unit 110 is used as a common gray scale of the sub pixels corresponding to the two non-zero gray scale data in the pixel unit 110.
  • Data, together with the 0 gray scale data, constitutes the first gray scale data set. And subtracting the difference data group of the first gray scale data group from the original gray scale data group as the second gray scale data group of the pixel unit 110.
  • the grayscale data corresponding to the half of the grayscale value corresponding to the non-zero grayscale data in the original grayscale data group corresponding to the unit color pixel unit 110 is used as the non-zero in the pixel unit 110.
  • the method shown in FIG. 3 is a method for determining the minimum gray scale data in the gray scale data group of the ternary mixed color, and specifically includes steps S210-S260.
  • Step S210 determining whether the red grayscale value in the original grayscale value group corresponding to the original grayscale data group to be displayed by the ternary color mixing pixel unit is greater than the green grayscale value, and if yes, executing step S220; otherwise, performing steps S230.
  • the step first determines the magnitude relationship between the grayscale value corresponding to the red sub-pixel 111 and the grayscale value of the green sub-pixel 112, and is merely a case listed for convenience of explanation, and may actually adopt red, green, and blue colors.
  • the grayscale values of any two colors in the sub-pixel are first determined.
  • Step S220 It is determined whether the green grayscale value in the original grayscale value group is greater than a blue grayscale value. If yes, step S250 is performed; otherwise, step S240 is performed. The step is to compare and judge the smaller grayscale value in step S120 with the grayscale value of the other color, and output the corresponding judgment result and the action signal.
  • Step S230 Determine whether the red grayscale value in the original grayscale value group is greater than the blue grayscale value, and if yes, execute step S250; otherwise, perform step S260.
  • the step is to compare and judge the smaller grayscale value in step S120 with the grayscale value of the other color, and output the corresponding judgment result and the action signal.
  • Step S240 Determine that the grayscale data corresponding to the green subpixel in the original grayscale data group is the minimum original grayscale data.
  • Step S250 Determine that the grayscale data corresponding to the blue sub-pixel in the original grayscale data group is the minimum original grayscale data.
  • Step S260 determining gray scale data corresponding to the red sub-pixel in the original gray scale data group as the minimum original gray scale data.
  • An embodiment shown in FIG. 4 is a method for determining a minimum non-zero gray scale data in a gray-scale data group of a binary color mixture, and specifically includes steps S310-S380.
  • Step S310 It is determined whether the red grayscale value in the original grayscale value group corresponding to the original grayscale data group to be displayed by the binary color mixing pixel unit is 0. If yes, step S320 is performed; otherwise, step S330 is performed.
  • a certain color is a binary color mixing type, and the color includes any two colors of three components of red, green, and blue.
  • the red sub-pixel in the pixel unit 110 is corresponding. 111.
  • the gray scale values of the green sub-pixel 112 and the blue sub-pixel 113 are only 0, and the other two are not 0, that is, the corresponding original gray-scale data group contains only one of the 0 grays. Order data.
  • the step S310 first determines whether the grayscale value corresponding to the red sub-pixel 111 is 0, which is only a case listed for convenience of description, and may actually adopt one color of red, green and blue sub-pixels. The grayscale value is judged first.
  • Step S320 It is determined whether the green grayscale value corresponding to the pixel unit with the gray sub-pixel grayscale value of 0 is greater than the blue grayscale value. If yes, step S360 is performed; otherwise, step S370 is performed.
  • Step S330 It is determined whether the green grayscale value corresponding to the pixel unit whose red sub-pixel grayscale value is not 0 is 0. If yes, step S350 is performed; otherwise, step S340 is performed.
  • the step of determining whether the grayscale value corresponding to the red sub-pixel 111 is not 0, and determining whether the grayscale value corresponding to the green sub-pixel 112 is 0 is merely listed for convenience of description. In one case, it can actually be judged by using the grayscale value of the blue sub-pixel.
  • Step S340 It is determined whether the red grayscale value corresponding to the pixel unit with the gray sub-pixel grayscale value of 0 is greater than the green grayscale value. If yes, step S380 is performed; otherwise, step S370 is performed.
  • the magnitude relationship of the gray scale values can determine the minimum non-zero gray scale data in the original gray scale data group corresponding to the pixel unit.
  • Step S350 It is determined whether the red grayscale value corresponding to the pixel unit of the green sub-pixel grayscale value of 0 is greater than the blue grayscale value. If yes, step S360 is performed; otherwise, step S380 is performed. The step is that when the grayscale value corresponding to the green sub-pixel 112 is 0, it is determined that the color displayed by the pixel unit is a mixed color of red and blue, so the determination of the red grayscale value and the blue The magnitude relationship of the color gray scale values can determine the minimum non-zero gray scale data in the original gray scale data set corresponding to the pixel unit.
  • Step S360 determining that the original grayscale data corresponding to the blue subpixel in the original grayscale data group corresponding to the binary color mixing pixel unit is the minimum non-zero grayscale data.
  • Step S370 determining that the original grayscale data corresponding to the green subpixel in the original grayscale data group corresponding to the binary color mixing pixel unit is the minimum non-zero grayscale data.
  • Step S380 determining that the original grayscale data corresponding to the red subpixel in the original grayscale data group corresponding to the binary color mixing pixel unit is the minimum non-zero grayscale data.
  • the difference in the brightness of the viewing angle of the grayscale liquid crystal display is increased, so that the difference between the brightness of the positive viewing angle and the brightness of the side viewing angle is higher, so that in order to highlight the main color and improve the color shift,
  • the lowest gray scale data in the original gray scale data set is displayed in a separate set of gray scale data, and in other groups, the color not containing the lowest gray scale data can be displayed, thereby eliminating the lowest in the group.
  • the gray scale color affects the display of the main color due to the rapid saturation enhancement of the viewing angle brightness ratio of the gray scale liquid crystal display.
  • the grouping process is a data grouping performed when processing the original grayscale data group.
  • the grayscale value group is used to illustrate For convenience and simplicity:
  • the original gray scale data group corresponding to a certain pixel unit 110 is converted into an original gray scale value group (A, B, C), that is, the gray scale value corresponding to the red sub-pixel 111 is A, The gray scale value corresponding to the green sub-pixel 112 is B, and the gray scale value corresponding to the blue sub-pixel 113 is C.
  • A>B>C the gray corresponding to the blue sub-pixel 113 can be determined.
  • the order value is the smallest gray scale value among the original gray scale values, that is, the lowest gray scale value, and the difference between the positive viewing angle luminance and the side viewing angle luminance of the lowest gray scale value is the largest.
  • the lowest grayscale value is used as the grayscale value common to the red subpixel 111, the green subpixel 112, and the blue subpixel 113, and the The first grayscale value group, namely (C, C, C). And subtracting, from the original gray scale data, the grayscale values corresponding to the red sub-pixel 111, the green sub-pixel 112, and the blue sub-pixel 113 by a difference group of the lowest grayscale value as a The second gray scale value group is (AC, BC, 0). So that the lowest grayscale value can be removed in the second grayscale value group, and the effect of the minimum grayscale value on the color shift in the case of the large grayscale value group is eliminated.
  • the ratio of the sum of the gray scale values of the main colors after decomposition to the relatively low gray scale values is improved, so that not only the color shift under the side viewing angle is improved, but also the brightness of the main color is improved.
  • the grayscale value data set and the grayscale value set are all in the smallest unit of the pixel unit 110, and include the red subpixel 111, the green subpixel 112, and the A data group composed of gray scale data or gray scale values corresponding to the blue sub-pixels 113 is described.
  • the original gray scale data group refers to an original gray scale value data group input by the display device including red, green and blue gray scale data.
  • the original gray scale value group refers to a gray scale value group including red, green, and blue gray scale data directly converted by the original gray scale array.
  • the purpose of decomposing the original gray scale data group corresponding to the binary color mixture and the unit color into two sets of gray scale data groups in the above grouping rule is to keep the synchronization with the execution control mode of the ternary mixed color gray scale data group, which is convenient. Drive and control.
  • the liquid crystal display device further includes a driving module.
  • the drive module is configured to receive, process, and output drive data.
  • the driving method further includes increasing the driving frequency of each pixel unit by an original one to three times to compensate for a display speed that is lowered due to gray scale value decomposition. Decompose the original gray scale value into two gray scale values and display them in two consecutive time periods, so that the display time of the picture becomes twice the original, that is, the display speed is reduced to half of the original, in order to compensate for the gray scale The display speed is reduced by the value decomposition, and the driving frequency can be increased.
  • the driving frequency of each of the pixel units is increased by a factor of two to maintain the display speed of the pixel unit after the grayscale value decomposition is the same as the display speed before the grayscale value is decomposed.
  • the setting is such that the smoothness of the screen after the grayscale value is decomposed and displayed is substantially the same as the smoothness of the screen of the original grayscale data display, and the color shift problem of the liquid crystal display is improved without impairing the original visual effect.
  • the liquid crystal display device further includes a backlight module 300.
  • the backlight module 300 includes a backlight unit 320 for providing a backlight source.
  • the driving method further includes increasing the brightness of the backlight unit 320 by one to three times to compensate for the reduction of the gray scale value, or the increase of the driving frequency, or the reduction of the gray scale value and the increase of the driving frequency. Display brightness. Because the process of grayscale value decomposition is to decompose the original high grayscale value into two new low grayscale values, that is, a set of high voltage signals is actually decomposed into two sets of low voltage signals, so the brightness will decrease. .
  • the display time of the picture is doubled, that is, the display speed is reduced to the original two points.
  • the driving frequency is generally increased, and the driving frequency is increased, and the brightness actually displayed by each set of gray scale data sets is smaller than the original driving frequency. reduce.
  • the original driving frequency is increased to twice the original driving frequency
  • the actual display time of the driving signal becomes 1/2 of the original driving signal time, causing the brightness to decrease.
  • the brightness of the backlight can be increased.
  • the brightness of the backlight unit 320 is increased by 2 times to maintain the brightness of the pixel unit after the gray level value decomposition is the same as the brightness before the gray level value is decomposed.
  • the setting is such that the effect of the gray scale value decomposition display is substantially the same as that of the original gray scale data display, and the color shift problem of the liquid crystal display is improved without impairing the original visual effect.
  • the method of determining the type of the color corresponding to the original gray scale data group to be displayed by each of the pixel units, and determining the original gray scale according to the type of the corresponding gray color data group to be displayed by each of the pixel units The data group is divided into the first gray scale data group and the second gray scale data group according to the set grouping rule, and the output is displayed in two consecutive time periods. With this arrangement, the luminance ratio of the main tone is increased, so that the color shift of the large viewing angle main color to be affected by the low voltage sub-pixel is improved.
  • the backlight unit 320 may be an RGB type LED lamp, a white light type LED lamp or other light source, which is not limited herein.
  • the pixel unit 110 includes four or more sub-pixels of different colors.
  • the pixel unit 110 includes four sub-pixels of different colors, which may include, in addition to the red sub-pixel 111, the green sub-pixel 112, and the blue sub-pixel 113. For example, white sub-pixels, yellow sub-pixels, orange sub-pixels, or other color sub-pixels.
  • the pixel unit 110 includes a plurality of sub-pixels of different colors.
  • the pixel unit includes sub-pixels of three colors of a white sub-pixel, a yellow sub-pixel, and an orange sub-pixel.
  • the present application also provides a driving method of a liquid crystal display device, which includes a display module.
  • the display module includes a plurality of pixel units arranged in an array.
  • the driving methods include:
  • the first gray scale data set and the second gray scale data set are respectively output and displayed in two consecutive time periods.
  • n is an integer greater than or equal to 1.
  • the pixel unit includes a plurality of sub-pixels of different colors.
  • the pixel unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel.
  • the pixel unit generates a color each time a grayscale value group is received.
  • the gray scale value set is generated by gray scale data input to the display device.
  • the grayscale value set includes a red grayscale value, a green grayscale value, and a blue grayscale value.
  • the color generated by the pixel unit is any one of three types: unit color, binary color mixing, and ternary color mixing.
  • the liquid crystal display device can use the above-described driving method for a partial region or for a partial region in accordance with the properties of the display data.
  • the liquid crystal display region using the above-described driving method can be made to increase the luminance ratio of the main color tone, so that the color shift of the large viewing angle main color to be affected by the low voltage sub-pixel is improved.
  • the liquid crystal display area using the above driving method can be used to increase the brightness of the main signal in the case of a large viewing angle, and the brightness of the entire image quality can be maintained by the brightness of the backlight being increased to twice the original brightness, and the driving is improved by the driving.
  • the frequency is twice the original driving frequency, which can maintain the speed of the overall image quality display.
  • this application does not require additional wiring on the liquid crystal display panel.
  • the present application also provides a driving method of the liquid crystal display device as follows.
  • the liquid crystal display device includes a display module 100.
  • the display module 100 includes a plurality of pixel units 110 arranged in an array.
  • the pixel unit includes a red sub-pixel 111, a green sub-pixel 112, and a blue sub-pixel 113.
  • the color generated by the pixel unit 110 is any one of three types: unit color, binary color mixing, and ternary color mixing.
  • the driving method of the liquid crystal display device includes:
  • the first gray scale data set, the second gray scale data set, and the third gray scale data set are respectively output and displayed in three consecutive time periods.
  • the grouping rules specifically include:
  • the minimum original gray scale data in the original gray scale data group corresponding to the ternary mixed color pixel unit 110 is used as the common one of the red subpixel 111, the green subpixel 112, and the blue subpixel 113 in the pixel unit.
  • Gray scale data which constitutes the first gray scale data set.
  • the difference gray data sets of the first gray scale data group and the second gray scale data group are respectively subtracted from the original gray scale data group corresponding to the ternary mixed color pixel unit 110 as the third gray scale data group.
  • the gray scale data in the original gray scale data group corresponding to the binary color mixing pixel unit 110 is used as the common gray of the red subpixel 111, the green subpixel 112, and the blue subpixel 113 in the pixel unit.
  • Level data which constitutes the first gray scale data set.
  • the minimum non-zero gray scale data in the original gray scale data group corresponding to the binary color mixing pixel unit 110 is used as the common gray scale data of the sub pixels corresponding to the non-zero gray scale data in the original gray scale data group, and the 0
  • the grayscale data together constitutes the second grayscale data set.
  • the difference gray data group of the second gray scale data group is subtracted from the original gray scale data group corresponding to the binary color mixing pixel unit 110 as the third gray scale data group.
  • the grayscale data corresponding to the half of the grayscale value of the minimum non-zero grayscale data in the original grayscale data group corresponding to the binary color mixing pixel unit 110 is taken as two of the pixel units 110.
  • the common gray scale data constitutes the first gray scale data group and the second gray scale data group.
  • the original gray scale data group corresponding to the unit color pixel unit 110 is used as a third gray scale data group.
  • the grayscale data corresponding to one third of the grayscale value corresponding to the non-zero grayscale data in the original grayscale data group corresponding to the unit color pixel unit 110 is used as the non-zero in the pixel unit.
  • the original gray scale data group corresponding to a certain pixel unit 110 is converted into the original gray scale value group (A, B, C), that is, the gray scale value corresponding to the red sub-pixel 111 is A, and the green sub-pixel 112 is Corresponding grayscale value is B, and the grayscale value corresponding to the blue subpixel 113 is C.
  • A>B>C the grayscale value corresponding to the blue subpixel 113 can be determined.
  • the minimum grayscale value in the original grayscale value, that is, the lowest grayscale value, the difference between the positive viewing angle luminance and the side viewing angle luminance of the lowest grayscale value is the largest.
  • the lowest grayscale value is used as the grayscale value common to the red subpixel 111, the green subpixel 112, and the blue subpixel 113, and the The first grayscale value group, namely (C, C, C).
  • the grayscale values corresponding to the red sub-pixel 111, the green sub-pixel 112, and the blue sub-pixel 113 in the original gray-scale data are respectively subtracted from the difference group of the lowest grayscale value.
  • the minimum non-zero gray scale data is used as the common gray scale data of the non-zero gray scale data in the difference group as the second gray scale value group, that is, (BC, BC, 0).
  • the lowest grayscale value can be removed in the second grayscale value group and the third grayscale value group, and the lowest grayscale value is eliminated in the second grayscale value group
  • the effect of the third gray scale value group on the color shift in the case of a large viewing angle, and in the overall effect of continuously displaying the three sets of gray scale values the brightness variation characteristic of the next unit color in the case of the liquid crystal display large viewing angle is known
  • the ratio of the sum of the gray scale values of the main colors after the decomposition to the relatively low gray scale values is improved, so that not only the color shift under the side angle of view is improved, but also the brightness of the main color is improved.
  • the purpose of decomposing the original gray-scale data group corresponding to the binary color mixture and the unit color into the gray-scale data group of the all-zero gray-scale data in the above-mentioned grouping rule is to keep the synchronization control mode of the gray-scale data group of the ternary mixed color. Easy to drive and control.
  • the driving method further includes increasing the driving frequency of the pixel unit by 1 to 4 times to compensate for the display speed lowered by the grayscale value decomposition.
  • the original gray scale value is decomposed into three gray scale values and displayed in three consecutive time periods, so that the display time of the picture becomes three times, that is, the display speed is reduced to one third of the original, in order to compensate
  • the display speed is lowered due to the resolution of the gray scale value, and the driving frequency can be increased.
  • the driving frequency of the pixel unit is increased by three times to maintain the display speed of the pixel unit after the grayscale value decomposition is the same as the display speed before the grayscale value is decomposed.
  • the setting is such that the smoothness of the screen after the grayscale value is decomposed and displayed is substantially the same as the smoothness of the screen of the original grayscale data display, and the color shift problem of the liquid crystal display is improved without impairing the original visual effect.
  • the driving method further includes increasing the brightness of the backlight unit 320 by an original one to four times to compensate for the reduced brightness due to the gray scale value decomposition. Because the process of grayscale value decomposition is to decompose the original high grayscale value into three new low grayscale values, that is, in reality, a set of high voltage signals is decomposed into three sets of low voltage signals, so the brightness is reduced. . On the other hand, since the original gray scale value is decomposed into three gray scale values and displayed in three consecutive time periods, the display time of the screen is tripled, that is, the display speed is reduced to the original three points.
  • the driving frequency is generally increased, and the driving frequency is increased because the time actually displayed by each set of grayscale data sets is smaller than the original driving frequency.
  • the brightness is reduced. For example, if the original driving frequency is increased to three times the original driving frequency, the actual display time of the driving signal becomes 1/3 of the original driving signal time, causing the brightness to decrease.
  • the brightness of the backlight can be improved.
  • the brightness of the backlight unit 320 is increased by three times to maintain the brightness of the pixel unit after the gray level value decomposition is the same as the brightness before the gray level value is decomposed.
  • the setting is such that the effect of the gray scale value decomposition display is substantially the same as that of the original gray scale data display, and the color shift problem of the liquid crystal display is improved without impairing the original visual effect.
  • the above method determines the type of the corresponding gray color of the original gray scale data group to be displayed by the pixel unit, and divides the original gray scale data group according to the set grouping rule according to the type of the corresponding gray color of the original gray scale data group to be displayed by the pixel unit.
  • a gray scale data set, a second gray scale data set, and a third gray scale data set are respectively output and displayed in three consecutive time periods.
  • the brightness ratio of the main hue is increased, so that the color shift of the main viewing color of the large viewing angle is affected by the low voltage sub-pixel. Increased main signal brightness presentation with large viewing angles.
  • the brightness of the overall image display can be maintained.
  • the driving frequency to three times the original driving frequency, the overall image quality can be maintained at the same speed.
  • no additional wiring is required on the liquid crystal display panel.
  • the present application also provides a liquid crystal display device using the driving method.
  • the liquid crystal display device includes a display module 100, a driving module 200, and a backlight module 300.
  • the display module 100 includes a plurality of pixel units 110 arranged in an array, and the pixel units 110 include a red sub-pixel 111, a green sub-pixel 112, and a blue sub-pixel 113.
  • the backlight module 300 includes a power processing unit 310 and a backlight unit 320.
  • the display module 100 is configured to display graphic information.
  • the driving module 200 is configured to receive, process, and output driving data to control the display module 100 to operate normally.
  • the backlight module 300 is configured to illuminate the backlight unit 320 by converting a direct current voltage into a high frequency alternating current.
  • the drive module 200 includes a grayscale value decomposition processing unit 210.
  • the grayscale value decomposition processing unit 210 is connected to all of the red sub-pixels 111, the green sub-pixels 112, and the blue sub-pixels 113 in the display module 100, and is configured to correspond to each of the input pixel units.
  • the original gray scale data is decomposed into two sets of new gray scale values, and is output as the red sub-pixel 111, the green sub-pixel 112, and the blue sub-pixel 113 in each of the pixel units 110 in two consecutive The grayscale value displayed in the time period.
  • the driving module 200 further includes a driving frequency adjusting unit 220, or a backlight brightness adjusting unit 230, or a combination of the driving frequency adjusting unit 220 and the backlight brightness adjusting unit 230.
  • the drive frequency adjustment unit 220 is configured to adjust the drive frequency.
  • the backlight brightness adjustment unit 230 is configured to adjust the brightness of the backlight unit 320. Decompose the original gray scale value into two gray scale values and display them in two consecutive time periods, so that the display time of the picture becomes twice the original, that is, the display speed is reduced to half of the original, in order to compensate for the gray scale The display speed is reduced by the value decomposition, and the driving frequency can be increased.
  • the way to increase the drive frequency can be an increase in hardware, or a change in software drivers, or an increase in hardware and a change in software drivers. Because the process of grayscale value decomposition is to decompose the original high grayscale value into two new low grayscale values, that is, a set of high voltage signals is actually decomposed into two sets of low voltage signals, so the brightness will decrease. . In order to compensate for the reduced brightness due to the gray scale value decomposition, the backlight brightness can be increased, that is, the backlight intensity is improved.
  • the manner in which the brightness of the backlight unit 320 is boosted may be a change in hardware, or a change in a software driver, or a change in hardware and software drivers at the same time.
  • the liquid crystal display device by changing the driving frequency of the driving module 200 and the backlight brightness of the backlight module 300, the liquid crystal display device can be applied to the driving method described above, and the color shift of the large viewing angle is improved. Does not reduce the original effect of the picture.
  • the present application also provides another liquid crystal display device using the driving method.
  • the liquid crystal display device includes a display module 100 , a driving module 200 , and a backlight module 300 .
  • the display module 100 includes a plurality of pixel units 110 arranged in an array, and the pixel units 110 include a red sub-pixel 111, a green sub-pixel 112, and a blue sub-pixel 113.
  • the backlight module 300 includes a power processing unit 310 and a backlight unit 320.
  • the display module 100 is configured to display graphic information.
  • the driving module 200 is configured to receive, process, and output driving data to control the display module 100 to operate normally.
  • the backlight module 300 is configured to illuminate the backlight unit 320 by converting a direct current voltage into a high frequency alternating current.
  • the driving module 200 includes a grayscale data decomposition processing unit 210, a driving frequency adjusting unit 220, and a backlight brightness adjusting unit 230.
  • the grayscale data decomposition processing unit 210 is connected to all the red sub-pixels 111, the green sub-pixels 112, and the blue sub-pixels 113 in the display module 100, and is configured to input the pixels.
  • the original gray scale data corresponding to the unit 110 is decomposed into three sets of new gray scale data, and the gray scale values corresponding to the respective sub pixels of the pixel unit 110 are output.
  • the drive frequency adjustment unit 220 is configured to adjust the drive frequency.
  • the original gray scale value is decomposed into three gray scale values and displayed in three consecutive time periods, so that the display time of the picture becomes three times, that is, the display speed is reduced to one third of the original, in order to compensate
  • the display speed is lowered due to the resolution of the gray scale value, and the driving frequency can be increased.
  • the way to increase the drive frequency can be an increase in hardware, or a change in software drivers, or a change in both hardware and software drivers.
  • the backlight brightness adjustment unit 230 is configured to adjust the brightness of the backlight unit 320. Because the process of grayscale data decomposition is to decompose the original high grayscale value group into three new low grayscale value groups, that is, in reality, a group of high voltage signal groups are decomposed into three sets of low voltage signal groups. Therefore, the brightness will decrease. In order to compensate for the reduced brightness due to the gray scale value decomposition, the backlight brightness can be increased, that is, the backlight intensity is improved.
  • the manner in which the brightness of the backlight unit 320 is boosted may be an increase in hardware, or a change in software drivers, or a simultaneous change in hardware and software drivers.
  • the "backlight unit 320" described in any of the above embodiments may be a single illumination unit, or may be any one of a plurality of independent or interrelated illuminants. Wherein, the illumination and extinction processes of any one of the plurality of independent or interconnected illuminants can be individually controlled.
  • the liquid crystal display device by changing the driving frequency of the driving module 200 and the backlight brightness of the backlight module 300, the liquid crystal display device can be applied to the driving method described above, and the color shift of the large viewing angle is improved. Does not reduce the original effect of the picture.

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Abstract

公开了一种显示装置及其驱动方法。该方法为根据待显示的原灰阶数据组对应颜色的类型，并按照设定的规则将其分解成第一组灰阶数据组和第二组灰阶数据组，并分别在两个连续的时间段内显示。

Description

液晶显示装置的驱动方法及液晶显示装置 技术领域
本申请涉及液晶显示技术领域，特别是涉及一种液晶显示装置的驱动方法及液晶显示装置。
背景技术
液晶显示器各种代表性色系的大视角与正视视角色偏变化中，红色、绿色和蓝色的色系大视角色偏情况均较其他色系严重，而且，由于灰阶液晶显示的视角亮度比例的快速饱和提升，使得越低灰阶值的正视角亮度与侧视角亮度差异越大。
目前用于改善色偏的方式是将每一个子像素都再细分为一个主像素和次像素，然后用相对高的驱动电压驱动主像素，用相对低的驱动电压驱动次像素，主像素和次像素一起显示一个子像素。并且利用所述相对高的驱动电压和相对低的驱动电压分别驱动主像素和次像素时，能够维持正视视角下的亮度与对应灰阶的关系不变。方法一般在灰阶的前半段，主像素用相对高的驱动电压驱动显示、次像素不显示，整个子像素的亮度就是主像素亮度的一半；在灰阶的后半段，主像素用相对高的驱动电压驱动显示、次像素用相对低的驱动电压驱动显示，整个子像素的亮度就是主像素的亮度加上次像素的亮度的和的一半。这样合成后，虽然大视角下的色偏情况有所改善。但上述方法存在的问题是，需要增加一倍的金属走线和驱动器件来驱动次像素，使可透光开口区牺牲，影响面板透光率，同时成本也更高。
申请内容
基于此，本申请提供了一种液晶显示装置的驱动方法及液晶显示装置，以大视角色偏情况、同时保证成本不会提高。
本申请提供了一种液晶显示装置的驱动方法，所述液晶显示装置包括显示模块；所述显示模块包括多个呈阵列排布的像素单元，所述驱动方法包括：
判断各个所述像素单元待显示的原灰阶数据组对应颜色的类型；
根据各个所述像素单元待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照 设定的分组规则分成第一灰阶数据组和第二灰阶数据组；以及
将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示。
基于同一发明构思，本申请还提供了一种液晶显示装置的驱动方法，所述液晶显示装置包括显示模块；所述显示模块包括多个呈阵列排布的像素单元，所述驱动方法包括：
判断第n个所述像素单元待显示的原灰阶数据组对应颜色的类型；
根据所述第n个像素单元待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组；以及
将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示；
其中，所述n为大于或等于1的整数。
基于同一发明构思，本申请还提供了一种液晶显示装置，所述液晶显示装置包括：
显示模块，设置为显示图文信息；
驱动模块，设置为接收、处理并输出驱动数据控制所述显示模块正常工作；以及
背光模块，设置为将直流电压转变为高频的高压交流电点亮背光单元；
所述显示模块包括多个呈阵列排布的像素单元；
所述像素单元包括红色子像素、绿色子像素和蓝色子像素；
所述驱动模块包括灰阶数据分解处理单元；
所述灰阶数据分解处理单元设置为将输入的各个所述像素单元对应的所述原灰阶数据组分解成两组新的灰阶数据组，并输出各个所述像素单元中所述红色子像素、绿色子像素和蓝色子像素在两个连续时间段内的灰阶值；
所述灰阶数据分解处理单元连接所述显示模块中所有的所述红色子像素、绿色子像素和蓝色子像素；
所述背光模块包括电源处理单元和所述背光单元。
上述方法及装置，通过将像素单元中红色子像素、绿色子像素和蓝色子像素对应的含有低灰阶的原灰阶数据组分解成一组全低灰阶值和一组去除最低非0灰阶值的，含有0灰阶值的灰阶值组进行呈现。由于灰阶液晶显示的视角亮度比例的快速饱和提升，使得越低灰阶值的正视角亮度与侧视角亮度的差异越大，所以，提高了主色调的亮度比例，使得大视角主色调受到低电压子像素影响的色偏情况获得改善。此外，不仅能够增加了大视角情况下的主信号亮度呈现，还能够通过背光亮度提升为原亮度的两倍可以维持整体画质显示 的亮度不变，以及通过提高驱动频率为原驱动频率的两倍，可以维持整体画质显示的速度不变。同时，本申请不需要在液晶显示板上进行额外的布线。
附图说明
图1为液晶显示装置的模块构成示意图；
图2为判断原灰阶数据组对应像素单元显示颜色的类型的驱动方法流程图；
图3为判断三元混色灰阶数据组中最小灰阶数据的驱动方法流程图；
图4为判断二元混色灰阶数据组中最小非0灰阶数据的驱动方法流程图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。
本申请实施例提供了一种液晶显示装置的驱动方法，如图1所示，所述液晶显示装置包括显示模块100。所述显示模块100包括多个呈阵列排布的像素单元110。所述驱动方法包括：
判断各个所述像素单元110待显示的原灰阶数据组对应颜色的类型。
根据各个所述像素单元110待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组。
将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示。
上述方法中，所述像素单元110可以是红色子像素111、绿色子像素112和蓝色子像素113的组合，也可以是其他颜色子像素组合类型。所述像素单元110每接收一个灰阶值组生成一种颜色。所述灰阶值组由输入所述液晶显示装置的灰阶数据生成。所述灰阶值组包括红色灰阶值、绿色灰阶值和蓝色灰阶值。所述像素单元110生成的颜色可以为单元色、二元混色和三元混色三种类型中的任意一种类型，也可以是由非单元色的子像素的组合混色类型。
其中，根据各个所述像素单元110待显示的原灰阶数据组中0灰阶数据的数量来判定所述原灰阶数据对应颜色的类型。判定方法如下：
当所述原灰阶数据组中不包括所述0灰阶数据时，判定所述原灰阶数据组对应的颜色为三元混色。
当所述原灰阶数据组中包括一个所述0灰阶数据时，判定所述原灰阶数据组对应的颜色为二元混色。
当所述原灰阶数据组中包括两个所述0灰阶数据时，判定所述原灰阶数据组对应的颜色为单元色。
具体如图2所示，判定各个所述像素单元110待显示的所述原灰阶数据组对应颜色的类型的一实施例方法步骤包括S110-S170。
步骤S110：判断各个所述像素单元110待显示的原灰阶数据组中是否含有所述0灰阶数据，若不是，则执行步骤S140，否则，执行步骤S120。某种颜色为三元混色类型，说明所述颜色中包含了红、绿、蓝三种成分的颜色，在液晶显示技术领域中，对应像素单元中的红色子像素、绿色子像素和蓝色子像素的灰阶值均不为0，即对应的原灰阶数据组中不含有0灰阶数据，所以，可以通过判断所述原灰阶数据组中是否含有0灰阶数据来判断所述原灰阶数据组是否为三元混色灰阶数据组。
步骤S120：判断各个所述像素单元110待显示的原灰阶数据组中是否只含有一个所述0灰阶数据，若是，则执行步骤S150，否则，执行步骤S130。某种颜色为二元混色类型，说明所述颜色中包含了红、绿、蓝三种成分的任意两种颜色，在液晶显示技术领域中，对应像素单元中的红色子像素、绿色子像素和蓝色子像素的灰阶值只有其中的一个为0，其他两个不为0，即对应的原灰阶数据组中只含有一个0灰阶数据，所以，可以通过判断所述原灰阶数据组中是否只含有一个0灰阶数据来判断所述原灰阶数据组是否为二元混色灰阶数据组。
步骤S130：判断各个所述像素单元待显示的原灰阶数据组中是否只含有两个所述0灰阶数据，若是，则执行步骤S160，否则，执行步骤S170。某种颜色为单元色类型，说明所述颜色中只包含了红、绿、蓝三种成分的任意一种颜色，在液晶显示领域中，对应像素单元中的红色子像素、绿色子像素和蓝色子像素的灰阶值只有其中的两个为0，另外一个不为0，即对应的原灰阶数据组中只含有两个0灰阶数据，所以，可以通过判断所述原灰阶数据组中是否只含有两个所述0灰阶数据来判断所述原灰阶数据组是否为单元色灰阶数据组。
步骤S140：判定所述灰阶数据组对应的像素单元显示的颜色为三元混色。
步骤S150：判定所述灰阶数据组对应的像素单元显示的颜色为二元混色。
步骤S160：判定所述灰阶数据组对应的像素单元显示的颜色为单元色。
步骤S170：判定所述灰阶数据组对应的像素单元为关闭状态。当某个像素单元各个子像素对应的灰阶值全部为0时，说明所述像素单元不承担显示任务，此时所述像素单元的各个子像素电压为0，处于关闭状态，因为光线不能够透过液晶，所述像素单元呈现黑色。
所述像素单元110包括所述红色子像素111、所述绿色子像素112和所述蓝色子像素113。所述像素单元110生成的颜色可以为单元色、二元混色和三元混色三种类型中的任意一种类型，则所述分组规则具体包括：
将所述三元混色像素单元110对应的所述原灰阶数据组中的最小原灰阶数据作为所述像素单元中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113的共同灰阶数据，组成所述第一灰阶数据组。
将所述三元混色像素单元110对应的所述原灰阶数据组减去所述第一灰阶数据组的差值数据组中的最小非0灰阶数据作为所述差值数据组中非0灰阶数据对应子像素的共同灰阶数据，与所述0灰阶数据一起组成所述第二灰阶数据组。
或者，将所述二元混色像素单元110对应的所述原灰阶数据组中的最小非0灰阶数据作为所述像素单元110中两个非0灰阶数据对应的子像素的共同灰阶数据，与所述0灰阶数据一起组成所述第一灰阶数据组。而将所述原灰阶数据组减去所述第一灰阶数据组的所述差值数据组作为所述像素单元110的所述第二灰阶数据组。
或者，将所述单元色像素单元110对应的所述原灰阶数据组中的所述非0灰阶数据对应的灰阶值的一半对应的灰阶数据，作为所述像素单元110中非0灰阶数据对应的子像素的灰阶数据，与所述0灰阶数据一起分别组成所述第一灰阶数据组和所述第二灰阶数据组。
其中，如图3所示的一实施例为判断三元混色的灰阶数据组中最小灰阶数据的方法，具体包括步骤S210-S260。
步骤S210：判断所述三元混色像素单元待显示的原灰阶数据组对应的原灰阶值组中的红色灰阶值是否大于绿色灰阶值，若是，则执行步骤S220，否则，执行步骤S230。所述步骤首先判断红色子像素111对应的灰阶值与绿色子像素112的灰阶值的大小关系，仅仅是为了便于说明而列举的一种情况，其实际上可以采用红色、绿色和蓝色子像素中任意两 个颜色的灰阶值进行先判断。
步骤S220：判断所述原灰阶值组中的所述绿色灰阶值是否大于蓝色灰阶值，若是，则执行步骤S250，否则，执行步骤S240。所述步骤是将步骤S120中较小的灰阶值再与另外一个颜色的灰阶值进行比较和判断，并输出相应的判断结果和动作信号。
步骤S230：判断所述原灰阶值组中的所述红色灰阶值是否大于所述蓝色灰阶值，若是，则执行步骤S250，否则，执行步骤S260。所述步骤是将步骤S120中较小的灰阶值再与另外一个颜色的灰阶值进行比较和判断，并输出相应的判断结果和动作信号。
步骤S240：判定所述原灰阶数据组中的所述绿色子像素对应的灰阶数据为最小原灰阶数据。
步骤S250：判定所述原灰阶数据组中的所述蓝色子像素对应的灰阶数据为所述最小原灰阶数据。
步骤S260：判定所述原灰阶数据组中的所述红色子像素对应的灰阶数据为所述最小原灰阶数据。
如图4所示的一实施例为判断二元混色的灰阶数据组中最小非0灰阶数据的方法，具体包括步骤S310-S380。
步骤S310：判断所述二元混色像素单元待显示的原灰阶数据组对应的原灰阶值组中的红色灰阶值是否为0，若是，则执行步骤S320，否则，执行步骤S330。
某种颜色为二元混色类型，说明所述颜色中包含了红、绿、蓝三种成分的任意两种颜色，在液晶显示技术领域中，对应所述像素单元110中的所述红色子像素111、所述绿色子像素112和所述蓝色子像素113的灰阶值只有其中的一个为0，其他两个不为0，即对应的原灰阶数据组中只含有一个所述0灰阶数据。所述步骤S310首先判断所述红色子像素111对应的灰阶值是否为0，仅仅是为了便于说明而列举的一种情况，其实际上可以采用红色、绿色和蓝色子像素中一个颜色的灰阶值进行先判断。
步骤S320：判断所述红色子像素灰阶值为0的像素单元对应的绿色灰阶值是否大于蓝色灰阶值，若是，则执行步骤S360，否则，执行步骤S370。所述步骤是在判定所述红色子像素111对应的灰阶值为0时，即确定了所述像素单元110显示的颜色为绿色和蓝色的混合色，所以判断所述绿色灰阶值和所述蓝色灰阶值的大小关系就能够确定所述像素单元110对应的所述原灰阶数据组中的所述最小非0灰阶数据了。
步骤S330：判断所述红色子像素灰阶值非0的像素单元对应的绿色灰阶值是否为0，若是，则执行步骤S350，否则，执行步骤S340。所述步骤在判定所述红色子像素111对应的所述灰阶值不为0时，再判断所述绿色子像素112对应的所述灰阶值是否为0，仅仅是为了便于说明而列举的一种情况，其实际上也可以采用所述蓝色子像素的灰阶值进行判断。
步骤S340：判断所述蓝色子像素灰阶值为0的像素单元对应的红色灰阶值是否大于绿色灰阶值，若是，则执行步骤S380，否则，执行步骤S370。所述步骤是在判定蓝色子像素113对应的灰阶值为0时，即确定了所述像素单元显示的颜色为绿色和红色的混合色，所以判断所述绿色灰阶值和所述红色灰阶值的大小关系就能够确定所述像素单元对应的所述原灰阶数据组中的所述最小非0灰阶数据了。
步骤S350：判断所述绿色子像素灰阶值为0的像素单元对应的红色灰阶值是否大于蓝色灰阶值，若是，则执行步骤S360，否则，执行步骤S380。所述步骤是在判定绿色子像素112对应的灰阶值为0时，即确定了所述像素单元显示的颜色为红色和蓝色的混合色，所以所述判断红色灰阶值和所述蓝色灰阶值的大小关系就能够确定所述像素单元对应的所述原灰阶数据组中的所述最小非0灰阶数据了。
步骤S360：判定所述二元混色像素单元对应的所述原灰阶数据组中所述蓝色子像素对应的原灰阶数据为所述最小非0灰阶数据。
步骤S370：判定所述二元混色像素单元对应的所述原灰阶数据组中所述绿色子像素对应的所述原灰阶数据为所述最小非0灰阶数据。
步骤S380：判定所述二元混色像素单元对应的所述原灰阶数据组中所述红色子像素对应的所述原灰阶数据为所述最小非0灰阶数据。
所述分组规则中，由于灰阶液晶显示的视角亮度比例的快速饱和提升，使得越低灰阶值的正视角亮度与侧视角亮度的差异越大，所以，为了突出主色和改善色偏，将所述原灰阶数据组中的最低灰阶数据放到单独的一组灰阶数据中显示，而在其他分组中则可以显示不含有最低灰阶数据的颜色，从而消除所述分组中最低灰阶颜色因灰阶液晶显示的视角亮度比例的快速饱和提升而影响主色的显示。为了更加清楚直接的说明分组规则，以灰阶值组进行如下的分组说明，需要注意的是，分组过程是在处理原灰阶数据组时进行的数据分组，这里用灰阶值组来说明只是为了方便和简捷：
假设某个所述像素单元110对应的所述原灰阶数据组转化成原灰阶值组为(A、B、C)，即所述红色子像素111对应的灰阶值为A，所述绿色子像素112对应的灰阶值为B，所述蓝色子像素113对应的灰阶值为C，当A>B>C时，即可判定所述蓝色子像素113对应的所述灰阶值为所述原灰阶值中的最小灰阶值，即最低灰阶值，所述最低灰阶值的正视角亮度与侧视角亮度的差异最大。为了减轻所述最低灰阶值的影响，现将所述最低灰阶值作为所述红色子像素111、所述绿色子像素112和所述蓝色子像素113共同的灰阶值，组成所述第一灰阶值组，即(C、C、C)。而将所述原灰阶数据中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113对应的灰阶值分别减去所述最低灰阶值的差值组作为所述第二灰阶值组,即(A-C、B-C、0)。如此设置，就能在所述第二灰阶值组中将最低灰阶值去除，消除所述最低灰阶值在所述第二灰阶值组显示时对大视角情况下色偏的影响，分解后的主色灰阶值之和相对低灰阶值的比例得到了提升，因此，不仅使侧视角下的色偏有所改善，还使得主色的亮度得到了提升。
在上述的内容中，所述灰阶值数据组和所述灰阶值组都是以所述像素单元110为最小单位，分别由包括所述红色子像素111、所述绿色子像素112和所述蓝色子像素113分别对应的灰阶数据或灰阶值在内的构成的数据组。所述原灰阶数据组是指包括红、绿、蓝灰阶数据在内的，显示装置输入的原始灰阶值数据组。所述原灰阶值组是指由所述原灰阶数组直接转化成的包括红、绿、蓝灰阶数据在内的灰阶值组。
上述的分组规则中将二元混色和单元色对应的所述原灰阶数据组分解成两组灰阶数据组的目的是为了和三元混色的灰阶数据组的执行控制方式保持同步，便于驱动和控制。
此外，液晶显示装置还包括驱动模块。所述驱动模块设置为接收、处理并输出驱动数据。所述驱动方法还包括将各个像素单元的驱动频率提升为原来的1至3倍，以补偿因灰阶值分解而降低的显示速度。将原本一个灰阶值分解成两个灰阶值在两个连续的时间段内显示，使得画面的显示时间变成了原来的两倍，即显示速度降低为原来的一半，为了补偿因灰阶值分解而降低的显示速度，可将驱动频率提高。
在其中一个实施例中，将各个所述像素单元的驱动频率提升为原来的2倍，以维持经过灰阶值分解后的所述像素单元的显示速度与灰阶值分解前的显示速度相同。如此设置，是为了使灰阶值分解显示后的画面流畅效果与原灰阶数据显示的画面流畅效果基本相同，在不损害原有的视觉效果下，改善液晶显示的色偏问题。
在其中一个实施例中，液晶显示装置还包括背光模块300。所述背光模块300包括用于提供背光光源的背光单元320。驱动方法还包括将所述背光单元320亮度提升为原来的1至3倍，以补偿因灰阶值分解，或驱动频率的提高，或灰阶值分解和驱动频率的提高同时作用下而降低的显示亮度。因为灰阶值分解的过程是将原高灰阶值分解成了两个新的低灰阶值，即实际中由一组高电压信号，被分解成了两组低电压信号，因而亮度会降低。另一方面，由于将原本一个灰阶值分解成两个灰阶值在两个连续的时间段内显示，使得画面的显示时间变成了原来的两倍，即显示速度降低为原来的二分之一，为了补偿因灰阶值分解而降低的显示速度，一般还会将驱动频率提高，驱动频率提高后还因为其每组灰阶数据组实际显示的时间较原驱动频率时小而造成亮度降低。例如，将原驱动频率提高为原驱动频率的两倍，则驱动信号实际显示时间变为原驱动信号时间的1/2而造成亮度降低。为了补偿因灰阶值分解，或驱动频率的提高，或者因灰阶值分解和动频率的提高同时进行而降低的亮度，可将背光亮度提升。
在其中一个实施例中，将所述背光单元320亮度提升为原来的2倍，以维持经过灰阶值分解后的像素单元亮度与灰阶值分解前的亮度相同。如此设置，是为了使灰阶值分解显示后的效果与原灰阶数据显示的效果基本相同，在不损害原有的视觉效果下，改善液晶显示的色偏问题。
上述方法，通过判断各个所述像素单元待显示的所述原灰阶数据组对应颜色的类型，并根据各个所述像素单元待显示的原灰阶数据组对应颜色的类型将所述原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组分别在两个连续的时间段内输出显示。如此设置，提高了主色调的亮度比例，使得大视角主色调受到低电压子像素影响的色偏情况获得改善。此外，不仅增加了大视角情况下的主信号亮度呈现，而且，通过背光亮度提升为原亮度的2倍可以维持整体画质显示的亮度不变，以及通过提高驱动频率为原驱动频率的2倍，可以维持整体画质显示的速度不变。同时，本申请不需要在液晶显示板上进行额外的布线。
在其中一个实施例中，所述背光单元320可以为RGB型LED灯,白光型LED灯或其他光源，在此不作限定。
在其中一个实施例中，所述像素单元110包括4个及4个以上颜色相异的子像素。
在其中一个实施例中，所述像素单元110包括4个颜色相异的子像素，除了包含所述 红色子像素111、所述绿色子像素112以及所述蓝色子像素113外，还可以包括例如白色子像素、黄色子像素、橙色子像素或其他颜色子像素。
在其中一个实施例中，所述像素单元110包括多个颜色相异的子像素。例如，所述像素单元包括白色子像素、黄色子像素、橙色子像素三种颜色的子像素。
本申请还提供一种液晶显示装置的驱动方法，所述液晶显示装置包括显示模块。所述显示模块包括多个呈阵列排布的像素单元。驱动方法包括：
判断第n个像素单元待显示的原灰阶数据组对应颜色的类型。
根据所述第n个像素单元待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组。
将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示。
其中，所述n为大于或等于1的整数。
在其中一个实施例中，所述像素单元包括多个颜色相异的子像素。
在其中一个实施例中，所述像素单元包括红色子像素、绿色子像素和蓝色子像素。所述像素单元每接收一个灰阶值组生成一种颜色。所述灰阶值组由输入显示装置的灰阶数据生成。所述灰阶值组包括红色灰阶值、绿色灰阶值和蓝色灰阶值。像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型。
上述液晶显示装置的驱动方法，能够使所述液晶显示装置针对设定的区域或根据显示数据的性质针对部分区域使用上述驱动方法。如此设置，能够使得使用上述驱动方法的液晶显示区域提高主色调的亮度比例，使得大视角主色调受到低电压子像素影响的色偏情况获得改善。此外，能够使得使用上述驱动方法的液晶显示区域增加大视角情况下的主信号亮度呈现，而且，通过背光亮度提升为原亮度的2倍可以维持整体画质显示的亮度不变，以及通过提高驱动频率为原驱动频率的2倍，可以维持整体画质显示的速度不变。同时，本申请不需要在液晶显示板上进行额外的布线。
此外，本申请还提供了如下液晶显示装置的驱动方法。
如图1所示，所述液晶显示装置包括显示模块100。所述显示模块100包括多个呈阵列排布的像素单元110。像素单元包括红色子像素111、绿色子像素112和蓝色子像素113。所述像素单元110生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型。所述液晶显示装置的驱动方法包括：
判断所述像素单元110待显示的原灰阶数据组对应颜色的类型。
根据所述像素单元110待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照设定的分组规则分成第一灰阶数据组、第二灰阶数据组和第三灰阶数据组。
将所述第一灰阶数据组、所述第二灰阶数据组和所述第三灰阶数据组分别在三个连续的时间段内输出显示。
分组规则具体包括：
将三元混色像素单元110对应的原灰阶数据组中的最小原灰阶数据作为所述像素单元中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113的共同灰阶数据，组成所述第一灰阶数据组。
将三元混色像素单元110对应的所述原灰阶数据组减去所述第一灰阶数据组的差值数据组中的最小非0灰阶数据作为所述差值数据组中非0灰阶数据对应子像素的共同灰阶数据，与0灰阶数据一起组成所述第二灰阶数据组。
将三元混色像素单元110对应的原灰阶数据组分别减去第一灰阶数据组和第二灰阶数据组的差值数据组作为第三灰阶数据组。
将二元混色像素单元110对应的原灰阶数据组中的0灰阶数据作为所述像素单元中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113的共同灰阶数据，组成所述第一灰阶数据组。
将二元混色像素单元110对应的原灰阶数据组中的最小非0灰阶数据作为所述原灰阶数据组中非0灰阶数据对应的子像素的共同灰阶数据，与所述0灰阶数据一起组成所述第二灰阶数据组。
将二元混色像素单元110对应的原灰阶数据组减去所述第二灰阶数据组的差值数据组作为所述第三灰阶数据组。
或者，将所述二元混色像素单元110对应的所述原灰阶数据组中的所述最小非0灰阶数据对应灰阶值的一半对应的灰阶数据，作为所述像素单元110中两个非0灰阶数据对应的子像素的共同灰阶数据，与0灰阶数据一起分别组成所述第一灰阶数据组和所述第二灰阶数据组。
将所述二元混色像素单元110对应的所述原灰阶数据组减去是第一灰阶数据组和所述第二灰阶数据组的差值数据组作为所述第三灰阶数据组。
将所述单元色像素单元110对应的所述原灰阶数据组中的任何一个0灰阶数据作为所述像素单元中所述红色子像素、所述绿色子像素和所述蓝色子像素的共同灰阶数据组成所述第一灰阶数据组和所述第二灰阶数据组。
将所述单元色像素单元110对应的所述原灰阶数据组作为第三灰阶数据组。
或者，将所述单元色像素单元110对应的所述原灰阶数据组中的非0灰阶数据对应的灰阶值的三分之一对应的灰阶数据，作为所述像素单元中非0灰阶数据对应的子像素的灰阶数据，与所述0灰阶数据一起分别组成所述第一灰阶数据组、所述第二灰阶数据组和所述第三灰阶数据组。
上述分组规则可概括如下：
假设某个像素单元110对应的原灰阶数据组转化成原灰阶值组为(A、B、C)，即所述红色子像素111对应的灰阶值为A，所述绿色子像素112对应的灰阶值为B，所述蓝色子像素113对应的灰阶值为C，当A>B>C时，即可判定所述蓝色子像素113对应的所述灰阶值为所述原灰阶值中的最小灰阶值，即最低灰阶值，所述最低灰阶值的正视角亮度与侧视角亮度的差异最大。为了减轻所述最低灰阶值的影响，现将所述最低灰阶值作为所述红色子像素111、所述绿色子像素112和所述蓝色子像素113共同的灰阶值，组成所述第一灰阶值组，即(C、C、C)。而将所述原灰阶数据中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113对应的灰阶值分别减去所述最低灰阶值的差值组中的最小非0灰阶数据作为所述差值组中非0灰阶数据的共同灰阶数据，作为所述第二灰阶值组,即(B-C、B-C、0)。将所述原灰阶数据组中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113对应的灰阶值分别减去所述第一灰阶值组和所述第二灰阶值组的差值作为所述第三灰阶值组，即(A-B、0、0)。如此设置，就能在所述第二灰阶值组中和所述第三灰阶值组中将所述最低灰阶值去除，消除所述最低灰阶值在所述第二灰阶值组和所述第三灰阶值组显示时对大视角情况下色偏的影响，而在三组灰阶值连续显示的总体效果中，由液晶显示大视角情况下个单元色的亮度变化特性可知，分解后的主色灰阶值之和相对低灰阶值的比例得到了提升，因此，不仅使侧视角下的色偏有所改善，还使得主色的亮度得到了提升。
上述的分组规则中将二元混色和单元色对应的原灰阶数据组分解成全0灰阶数据的灰阶数据组的目的是为了和三元混色的灰阶数据组的执行控制方式保持同步，便于驱动和控制。
此外，驱动方法还包括将所述像素单元的驱动频率提升为原来的1至4倍，以补偿因灰阶值分解而降低的显示速度。将原本一个灰阶值分解成三个灰阶值在三个连续的时间段内显示，使得画面的显示时间变成了原来的三倍，即显示速度降低为原来的三分之一，为了补偿因灰阶值分解而降低的显示速度，可将驱动频率提高。
在其中一个实施例中，将所述像素单元的驱动频率提升为原来的3倍，以维持经过灰阶值分解后的像素单元的显示速度与灰阶值分解前的显示速度相同。如此设置，是为了使灰阶值分解显示后的画面流畅效果与原灰阶数据显示的画面流畅效果基本相同，在不损害原有的视觉效果下，改善液晶显示的色偏问题。
所述驱动方法还包括将所述背光单元320亮度提升为原来的1至4倍，以补偿因灰阶值分解而降低的亮度。因为灰阶值分解的过程是将原高灰阶值分解成了三个新的低灰阶值，即实际中由一组高电压信号，被分解成了三组低电压信号，因而亮度会降低。另一方面，由于将原本一个灰阶值分解成三个灰阶值在三个连续的时间段内显示，使得画面的显示时间变成了原来的三倍，即显示速度降低为原来的三分之一，为了补偿因灰阶值分解而降低的显示速度，一般还会将驱动频率提高，驱动频率提高后还为因为其每组灰阶数据组实际显示的时间较原驱动频率时小而造成亮度降低。例如，将原驱动频率提高为原驱动频率的三倍，则驱动信号实际显示时间变为原驱动信号时间的1/3而造成亮度降低。为了补偿因灰阶值分解，或驱动频率的提高，或灰阶值分解和驱动频率的提高共同作用下而降低的亮度，可将背光亮度提升。
在其中一个实施例中，将所述背光单元320亮度提升为原来的3倍，以维持经过灰阶值分解后的像素单元亮度与灰阶值分解前的亮度相同。如此设置，是为了使灰阶值分解显示后的效果与原灰阶数据显示的效果基本相同，在不损害原有的视觉效果下，改善液晶显示的色偏问题。
上述方法，通过判断像素单元待显示的原灰阶数据组对应颜色的类型，并根据像素单元待显示的原灰阶数据组对应颜色的类型将原灰阶数据组按照设定的分组规则分成第一灰阶数据组、第二灰阶数据组和第三灰阶数据组分别在三个连续的时间段内输出显示。提高了主色调的亮度比例，使得大视角主色调受到低电压子像素影响的色偏情况获得改善。增加了大视角情况下的主信号亮度呈现。同时，通过背光亮度提升为原亮度的3倍可以维持整体画质显示的亮度不变，通过提高驱动频率为原驱动频率的3倍，可以维持整体画质 显示的速度不变。此外，还不需要在液晶显示板上进行额外的布线。
根据上述的液晶显示装置的驱动方法，本申请还提供了一种采用了所述驱动方法的液晶显示装置。
如图2所示，所述液晶显示装置包括显示模块100、驱动模块200和背光模块300。所述显示模块100包括多个呈阵列排布的像素单元110，且所述像素单元110包括红色子像素111、绿色子像素112和蓝色子像素113。所述背光模块300包括电源处理单元310和背光单元320。其中，所述显示模块100设置为显示图文信息。所述驱动模块200设置为接收、处理并输出驱动数据控制所述显示模块100正常工作。所述背光模块300设置为将直流电压转变为高频的高压交流电点亮所述背光单元320。
所述驱动模块200包括灰阶值分解处理单元210。
所述灰阶值分解处理单元210连接显示模块100中所有的所述红色子像素111、所述绿色子像素112和所述蓝色子像素113，设置为将输入的各个所述像素单元对应的原灰阶数据分解成两组新的灰阶值，并输出作为各个所述像素单元110中所述红色子像素111、所述绿色子像素112和所述蓝色子像素113分别在两个连续时间段显示的灰阶值。
此外，所述驱动模块200还包括驱动频率调节单元220，或背光亮度调节单元230，或驱动频率调节单元220和背光亮度调节单元230的组合。所述驱动频率调节单元220设置为调节驱动频率。所述背光亮度调节单元230设置为调节背光单元320的亮度。将原本一个灰阶值分解成两个灰阶值在两个连续的时间段内显示，使得画面的显示时间变成了原来的两倍，即显示速度降低为原来的一半，为了补偿因灰阶值分解而降低的显示速度，可将驱动频率提高。提高驱动频率的方式可以是硬件的增加，或软件驱动程序的改变，或硬件的增加和软件驱动程序的改变。因为灰阶值分解的过程是将原高灰阶值分解成了两个新的低灰阶值，即实际中由一组高电压信号，被分解成了两组低电压信号，因而亮度会降低。为了补偿因灰阶值分解而降低的亮度，可将背光亮度提升，即背光强度的提升。提升所述背光单元320亮度的方式可以是硬件的改变，或软件驱动程序的改变，或硬件和软件驱动程序同时改变。
上述的液晶显示装置，通过改变所述驱动模块200的驱动频率和所述背光模块300的背光亮度，使得所述液晶显示装置能够适用于上述的驱动方法，获得大视角情况的色偏改善，而不降低画面视觉的原有效果。
根据上述的液晶显示装置的驱动方法，本申请还提供了另一种采用了所述驱动方法的液晶显示装置。
如图1所示，所述液晶显示装置包括显示模块100、驱动模块200和背光模块300。显示模块100包括多个呈阵列排布的像素单元110，且所述像素单元110包括红色子像素111、绿色子像素112和蓝色子像素113。所述背光模块300包括电源处理单元310和背光单元320。其中，所述显示模块100设置为显示图文信息。所述驱动模块200设置为接收、处理并输出驱动数据控制所述显示模块100正常工作。所述背光模块300设置为将直流电压转变为高频的高压交流电点亮所述背光单元320。
所述驱动模块200包括灰阶数据分解处理单元210、驱动频率调节单元220和背光亮度调节单元230。
其中，所述灰阶数据分解处理单元210连接所述显示模块100中所有的所述红色子像素111、所述绿色子像素112和所述蓝色子像素113，设置为将输入的所述像素单元110对应的原灰阶数据分解成三组新的灰阶数据，并输出所述像素单元110中各子像素对应的灰阶值。
所述驱动频率调节单元220设置为调节驱动频率。将原本一个灰阶值分解成三个灰阶值在三个连续的时间段内显示，使得画面的显示时间变成了原来的三倍，即显示速度降低为原来的三分之一，为了补偿因灰阶值分解而降低的显示速度，可将驱动频率提高。提高驱动频率的方式可以是硬件的增加，或软件驱动程序的改变，或硬件和软件驱动程序同时改变。
所述背光亮度调节单元230设置为调节背光单元320的亮度。因为灰阶数据分解的过程是将原高灰阶值组分解成了三个新的低灰阶值组，即实际中由一组高电压信号组，被分解成了三组低电压信号组，因而亮度会降低。为了补偿因灰阶值分解而降低的亮度，可将背光亮度提升，即背光强度的提升。提升所述背光单元320亮度的方式可以是硬件的增加，或软件驱动程序的改变，或硬件和软件驱动程序同时改变。
上述任一实施例中所述的“背光单元320”可以是一个发光整体，也可以是多个独立或相互联系的发光体中的任意一个发光体。其中，多个独立或相互联系的发光体中的任意一个发光体的发光和熄灭过程可以单独控制。
上述的液晶显示装置，通过改变所述驱动模块200的驱动频率和所述背光模块300 的背光亮度，使得所述液晶显示装置能够适用于上述的驱动方法，获得大视角情况的色偏改善，而不降低画面视觉的原有效果。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种液晶显示装置的驱动方法，其中，所述液晶显示装置包括显示模块；所述显示模块包括多个呈阵列排布的像素单元，所述驱动方法包括：
    判断各个所述像素单元待显示的原灰阶数据组对应颜色的类型；
    根据各个所述像素单元待显示的原灰阶数据组对应颜色的类型将所述原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组；以及
    将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示。
  2. 根据权利要求1所述的液晶显示装置的驱动方法，其中，所述像素单元包括红色子像素、绿色子像素和蓝色子像素,所述判断各个所述像素单元待显示的原灰阶数据组对应颜色的类型包括：
    根据各个所述像素单元待显示的原灰阶数据组中0灰阶数据的数量判定所述原灰阶数据对应颜色的类型。
  3. 根据权利要求2所述的液晶显示装置的驱动方法，其中，所述根据各个所述像素单元待显示的原灰阶数据组中0灰阶数据的数量判定所述原灰阶数据对应颜色的类型，包括：
    当所述原灰阶数据组中不包括0灰阶数据时，判定所述原灰阶数据组对应的颜色为三元混色；
    当所述原灰阶数据组中只包括一个0灰阶数据时，判定所述原灰阶数据组对应的颜色为二元混色；以及
    当所述原灰阶数据组中只包括两个0灰阶数据时，判定所述原灰阶数据组对应的颜色为单元色。
  4. 根据权利要求3所述的液晶显示装置的驱动方法，其中，所述像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则包括：
    将三元混色像素单元对应的所述原灰阶数据组中的最小原灰阶数据作为所述像素单元中所述红色子像素、所述绿色子像素和所述蓝色子像素的共同灰阶数据，组成所述第一灰阶数据组；以及
    将所述三元混色像素单元对应的所述原灰阶数据组减去所述第一灰阶数据组的差值 数据组作为所述第二灰阶数据组。
  5. 根据权利要求3所述的液晶显示装置的驱动方法，其中，所述像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则包括：
    将二元混色像素单元对应的所述原灰阶数据组中的最小非0灰阶数据作为所述像素单元中两个非0灰阶数据对应的子像素的共同灰阶数据，与0灰阶数据一起组成所述第一灰阶数据组；以及
    将所述原灰阶数据组减去所述第一灰阶数据组的差值数据组作为所述像素单元的所述第二灰阶数据组。
  6. 根据权利要求3所述的液晶显示装置的驱动方法，其中，所述像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则包括：
    将单元色像素单元对应的原灰阶数据组中的非0灰阶数据对应的灰阶值的一半对应的灰阶数据，作为所述像素单元中非0灰阶数据对应的子像素的灰阶数据，与0灰阶数据一起分别组成所述第一灰阶数据组和所述第二灰阶数据组。
  7. 根据权利要求1所述的液晶显示装置的驱动方法，其中，所述驱动方法还包括：
    将各个所述像素单元的驱动频率提升为原来的1至3倍，以补偿因灰阶值分解而降低的显示速度。
  8. 根据权利要求7所述的液晶显示装置的驱动方法，其中，将各个所述像素单元的驱动频率提升为原来的2倍，以维持经过灰阶值分解后的所述像素单元的显示速度与灰阶值分解前的显示速度相同。
  9. 根据权利要求7所述的液晶显示装置的驱动方法，其中，所述液晶显示装置还包括背光模块；所述背光模块包括设置为提供背光光源的背光单元，所述驱动方法还包括：
    将所述背光单元亮度提升为原来的1至3倍，以补偿因灰阶值分解，或驱动频率的提高，或灰阶值分解和驱动频率的提高同时作用下而降低的亮度。
  10. 根据权利要求4所述的液晶显示装置的驱动方法，其中，将所述背光单元亮度提升为原来的2倍，以维持经过灰阶值分解后的所述像素单元亮度与灰阶值分解前的亮度相同。
  11. 一种液晶显示装置的所述液晶显示装置包括显示模块；所述显示模块包括多个呈阵列排布的像素单元，所述驱动方法包括：
    判断第n个所述像素单元待显示的原灰阶数据组对应颜色的类型；
    将所述第n个像素单元对应的原灰阶数据组按照设定的分组规则分成第一灰阶数据组和第二灰阶数据组；以及
    将所述第一灰阶数据组和所述第二灰阶数据组分别在两个连续的时间段内输出显示；
    其中，所述n为大于或等于1的整数。
  12. 如权利要求11所述的驱动方法，其中，所述第n个像素单元包括红色子像素、绿色子像素和蓝色子像素,所述判断所述第n个像素单元待显示的原灰阶数据组对应颜色的类型包括：
    根据所述第n个像素单元待显示的原灰阶数据组中0灰阶数据的数量判定所述原灰阶数据对应颜色的类型。
  13. 如权利要求12所述的驱动方法，其中，所述根据所述第n个像素单元待显示的原灰阶数据组中0灰阶数据的数量判定所述原灰阶数据对应颜色的类型包括：
    当所述原灰阶数据组中不包括0灰阶数据时，判定所述原灰阶数据组对应的颜色为三元混色；
    当所述原灰阶数据组中只包括一个0灰阶数据时，判定所述原灰阶数据组对应的颜色为二元混色；以及
    当所述原灰阶数据组中只包括两个0灰阶数据时，判定所述原灰阶数据组对应的颜色为单元色。
  14. 如权利要求13所述的驱动方法，其中，所述第n个像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则具体包括：
    将三元混色像素单元对应的所述原灰阶数据组中的最小原灰阶数据作为所述第n个像素单元中所述红色子像素、所述绿色子像素和所述蓝色子像素的共同灰阶数据，组成所述第一灰阶数据组；以及
    将三元混色像素单元对应的所述原灰阶数据组减去所述第一灰阶数据组的差值数据组作为所述第二灰阶数据组。
  15. 如权利要求13所述的驱动方法，其中，所述第n个像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则具体包括：
    将二元混色像素单元对应的所述原灰阶数据组中的最小非0灰阶数据作为所述第n个 像素单元中两个非0灰阶数据对应的子像素的共同灰阶数据，与0灰阶数据一起组成所述第一灰阶数据组；以及
    将所述原灰阶数据组减去所述第一灰阶数据组的差值数据组作为所述第n个像素单元的所述第二灰阶数据组。
  16. 如权利要求13所述的驱动方法，其中，所述第n个像素单元生成的颜色为单元色、二元混色和三元混色三种类型中的任意一种类型，所述分组规则具体包括：
    将单元色像素单元对应的原灰阶数据组中的非0灰阶数据对应的灰阶值的一半对应的灰阶数据，作为所述第n个像素单元中非0灰阶数据对应的子像素的灰阶数据，与0灰阶数据一起分别组成所述第一灰阶数据组和所述第二灰阶数据组。
  17. 如权利要求11所述的驱动方法，其中，所述驱动方法还包括：
    将各个所述像素单元的驱动频率提升为原来的1至3倍，以补偿因灰阶值分解而降低的显示速度。
  18. 如权利要求11所述的驱动方法，其中，所述液晶显示装置还包括背光模块；所述背光模块包括用于提供背光光源的背光单元，所述驱动方法还包括：
    将所述背光单元亮度提升为原来的1至3倍，以补偿因灰阶值分解，或驱动频率的提高，或灰阶值分解和驱动频率的提高同时作用下而降低的亮度。
  19. 一种液晶显示装置，其中，所述液晶显示装置包括：
    显示模块，设置为显示图文信息；
    所述显示模块包括多个呈阵列排布的像素单元；
    所述像素单元包括红色子像素、绿色子像素和蓝色子像素；
    驱动模块，设置为接收、处理并输出驱动数据控制所述显示模块正常工作；
    所述驱动模块包括灰阶数据分解处理单元；
    所述灰阶数据分解处理单元设置为将输入的各个所述像素单元对应的所述原灰阶数据组分解成两组新的灰阶数据组，并输出各个所述像素单元中所述红色子像素、绿色子像素和蓝色子像素在两个连续时间段内的灰阶值；
    所述灰阶数据分解处理单元连接所述显示模块中所有的所述红色子像素、绿色子像素和蓝色子像素；以及
    背光模块，设置为将直流电压转变为高频的高压交流电点亮背光单元；
    其中，所述背光模块包括电源处理单元和背光单元。
  20. 根据权利要求19所述的液晶显示装置，其中，所述驱动模块还包括驱动频率调节单元，或背光亮度调节单元，或所述驱动频率调节单元和所述背光亮度调节单元；
    所述驱动频率调节单元设置为调节驱动频率；
    所述背光亮度调节单元设置为调节所述背光单元的亮度。
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