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WO2019119599A1 - 显示装置的驱动方法及其驱动装置 - Google Patents

显示装置的驱动方法及其驱动装置 Download PDF

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Publication number
WO2019119599A1
WO2019119599A1 PCT/CN2018/073595 CN2018073595W WO2019119599A1 WO 2019119599 A1 WO2019119599 A1 WO 2019119599A1 CN 2018073595 W CN2018073595 W CN 2018073595W WO 2019119599 A1 WO2019119599 A1 WO 2019119599A1
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WIPO (PCT)
Prior art keywords
pixel unit
signal
frame
average signal
pixel
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Ceased
Application number
PCT/CN2018/073595
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English (en)
French (fr)
Inventor
康志聪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Chongqing HKC Optoelectronics Technology Co Ltd
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Priority to US16/064,391 priority Critical patent/US20200066217A1/en
Publication of WO2019119599A1 publication Critical patent/WO2019119599A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3607Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control 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
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • G09G3/3666Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/028Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/16Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • the present application relates to a design method of a display panel, and more particularly to a driving method of a display device and a driving device thereof.
  • a liquid crystal display is a flat thin display device composed of a certain number of color or black and white pixels placed in front of a light source or a reflecting surface.
  • Each pixel consists of a layer of liquid crystal molecules suspended between two transparent electrodes, and two polarizing filters with polarization directions perpendicular to each other on the outside. If there is no liquid crystal between the electrodes, the light passes through one of the polarizing filters and its polarization direction will be completely perpendicular to the second polarizing plate, and thus is completely blocked. However, if the direction of polarization of the light passing through a polarizing filter is rotated by the liquid crystal, it can pass through another polarizing filter. The rotation of the liquid crystal to the polarization direction of the light can be controlled by an electrostatic field, thereby achieving control of the light.
  • the arrangement of the liquid crystal molecules is determined by the arrangement of the surface of the electrode, and the surface of the chemical substance of the electrode can serve as a seed crystal of the crystal.
  • the upper and lower electrodes of the liquid crystal are vertically aligned.
  • the liquid crystal molecules are spirally arranged, and the light passing through one polarizing filter rotates in the polarization direction after passing through the liquid crystal cell, thereby being able to pass through the other polarizing plate. During this process a small portion of the light is blocked by the polarizer and appears gray from the outside.
  • the liquid crystal molecules After the charge is applied to the transparent electrode, the liquid crystal molecules will be arranged almost in parallel along the direction of the electric field, so that the polarization direction of the light transmitted through one of the polarizing filters is not rotated, so that the light is completely blocked. At this point the pixel looks black.
  • the voltage By controlling the voltage, it is possible to control the degree of distortion of the alignment of the liquid crystal molecules to achieve different gradations.
  • the color filter is used to generate various colors, which is a key component of the liquid crystal display from gray scale to color.
  • the backlight is provided by the backlight module of the LCD, and the driver IC and the liquid crystal control are used to form the gray.
  • the order display forms a color display screen by passing the light source through the photoresist color layer of the color filter.
  • an object of the present invention is to provide a display panel design method, and more particularly to a display device driving method, including: calculating an average signal of all sub-pixel units in a partition to obtain a partition. a first average signal, a partitioned second average signal, and a partitioned third average signal; determining, according to the average signal in the partition, the smallest average signal is the lowest average signal sub-pixel belonging to the first, second, and third hue Determining that the minimum signal of most of the pixel units in the partition is the hue of the first, second, and third sub-pixels; performing the combined allocation of the frame signals; calculating the average color space of the pixel units of each partition The color signal determines the range of the overall average color of the partition; according to the definition range of the hue and the color saturation, it is determined that the time of each partition frame corresponds to the brightness of the first, second, and third light sources; and the brightness of the backlight is adjusted.
  • a driving method of a display device includes: calculating an average signal of all sub-pixel units in a partition, and obtaining a first average signal of a partition, a second average signal of a partition, and a third average signal of a partition.
  • the smallest average signal according to the average signal in the partition is the lowest average signal sub-pixel belonging to the first, second, and third hue; the minimum signal of most of the pixel units in the partition is determined to be the first The hue of one of the second and third sub-pixels; performing the combined allocation of the frame signals; calculating the color signal in the average color space of the pixel unit of each partition, determining the range of the overall average color of the partition; according to the hue and color
  • the definition range of the saturation is determined by adjusting the brightness of the first, second, and third light sources for each partition frame time; and adjusting the brightness of the backlight.
  • Another object of the present application is a driving device for a display device, comprising at least one partition, each partition being composed of a plurality of pixel units, each pixel unit being composed of a first sub-pixel unit, a second sub-pixel unit, and a first
  • the three sub-pixel unit comprises: calculating an average signal of all sub-pixel units in a partition, and obtaining a first average signal of a partition, a second average signal of a partition, and a third average signal of a partition; determining according to an average signal in the partition The smallest average signal is the lowest average signal sub-pixel belonging to the first, second, and third hue; the minimum signal of most of the pixel units in the partition is determined to be one of the first, second, and third The hue of the sub-pixel; perform the combined allocation of the frame signals; calculate the color signal in the average color space of the pixel unit of each partition, determine the range of the overall average color of the partition; judge according to the definition range of hue and color saturation Each partition frame time is adjusted corresponding to the brightness
  • a further object of the present application is a driving device for a display device, comprising at least one partition, each partition being composed of a plurality of pixel units, each pixel unit being composed of a first sub-pixel unit, a second sub-pixel unit and a first
  • the three sub-pixel unit comprises: calculating an average signal of all sub-pixel units in a partition, and obtaining a first average signal of a partition, a second average signal of a partition, and a third average signal of a partition; determining according to an average signal in the partition The smallest average signal is the lowest average signal sub-pixel belonging to the first, second, and third hue; the minimum signal of most of the pixel units in the partition is determined to be one of the first, second, and third The hue of the sub-pixel; perform the combined allocation of the frame signals; calculate the color signal in the average color space of the pixel unit of each partition, determine the range of the overall average color of the partition; judge according to the definition range of hue and color saturation Each partition frame time is adjusted corresponding to the brightness
  • the average signal of all the pixel units in a partition is a first average signal, a second average signal, and a first hue of the third average signal is combined, wherein the first average signal is greater than the first
  • the second average signal is greater than the third average signal; when the first pixel unit is greater than the first pixel unit, the first pixel unit is greater than the second pixel unit
  • the gray level signal of the three pixel unit is combined with the average signal first average signal of the partition, the second average signal, and the first color of the third average signal.
  • the first average signal is greater than the gray level signal of the second average signal greater than the third average signal.
  • the order of the sizes is the same, and the smallest common signal of the first pixel unit, the second pixel unit, and the third pixel unit of the sub-pixel unit is the third pixel unit.
  • the gray pixel signals of the first pixel unit, the second pixel unit, and the third pixel unit of the sub-pixel unit are changed from 1 frame to signal combination of 3 frames, respectively.
  • the frame 3 is a third first pixel unit, a third second pixel unit, and a third third pixel unit combination; wherein the frame 1, the frame 2 and the frame 3 signal combination meets the first first pixel unit plus The second first pixel unit plus the third first pixel unit is equal to the first pixel unit, the first second pixel unit plus the second second pixel unit plus the third second pixel unit is equal to the second pixel unit, first The third pixel unit plus the second third pixel unit plus the third third pixel unit is equal to the third pixel unit.
  • the first pixel unit, the first second pixel unit, and the first third pixel unit combination 1 of the frame 1 are the third color of the sub-pixel unit.
  • Pixel unit pixel signal The third pixel unit is regarded as a common sub-pixel signal of the frame, that is, the first first pixel unit is equal to the third pixel unit, the first second pixel unit is equal to the third pixel unit, and the first third pixel unit is Equal to the third pixel unit.
  • the second pixel unit, the second second pixel unit, and the second third pixel unit of the frame 2 are the original signal first pixel unit, and the second pixel unit
  • the first, second, and third sub-pixel difference signals of the common sub-pixel signal of the third pixel unit and the frame 1 signal difference are respectively the first pixel unit-third pixel unit, a second pixel unit - a third pixel unit, 0, wherein when the frame 2 adopts the first sub-pixel signal of the difference signal, the sub-pixel signal of the frame 2 is combined into a second first pixel unit equal to the first pixel unit a third pixel unit, the second second pixel unit being equal to 0 and the second third pixel unit being equal to zero.
  • the frame 3 is another sub-pixel second signal of the difference, and the sub-pixel signal of the frame 3 is combined into a third first pixel unit equal to 0, and a third second.
  • the pixel unit is equal to the second pixel unit - the third pixel unit, and the third third pixel unit is equal to zero.
  • the definition range according to the hue and the color saturation is a first condition range
  • the range of the partition average value is a second condition range, thereby determining the time corresponding to each partition frame.
  • the second and third light sources are adjusted in brightness.
  • the first condition range and the second condition range of the defined range are selected from the group consisting of: a first group is when the first condition range hue is between 330° and 30° Interval, and the color saturation is in the range from the first low saturation to the first high saturation, and when the second condition range first average signal is greater than the second average signal is greater than the third average signal, the second frame third light source signal is adjusted The second source signal of 0 or the second frame is adjusted to 0, and the first and third source signals of the third frame are adjusted to 0; a second group is when the first condition range is between 330° and 30 ° interval, and the color saturation is in the range of the first low saturation to the first high saturation, and when the second condition range first average signal is greater than the third average signal is greater than the second average signal, the second frame second light source signal The third source signal adjusted to 0 or the second frame is adjusted to 0, and the first and second source signals of the third frame are adjusted to 0; a third group is when the first condition range is between 30° and
  • the third source signal is adjusted to 0; a fourth group is when the first condition range hue is between 90° and 150°, and the color saturation is between the range of the third low saturation and the third highest saturation, and The second condition range second average signal is greater than the first average signal is greater than the third average signal, then the second frame third source signal is adjusted to 0 or the second frame first source signal is adjusted to 0, and the third frame is The second and third light source signals are adjusted to 0; a fifth group is when the first condition range hue is between 150° and 210°, and the color saturation is between the fourth and fourth highest saturations, and When the second condition range second average signal is greater than the first average signal is greater than the third average signal, the second frame third source signal is adjusted to 0 or the second frame first source signal is adjusted to 0, and the third frame The second and third source signals are adjusted to 0; a sixth group is when the first condition is The hue is in the range of 150° to 210°, and the color saturation is in the range of the fourth low saturation to the fourth high saturation, and when the
  • the present invention decomposes the input signals of each group of the first, second, and third sub-pixels into three frame signals by determining the signals of the first, second, and third sub-pixel combinations, and needs to increase the display driving frequency.
  • Three times, three decomposed frame signals are respectively displayed, and the three decomposed frame signals enhance the main view brightness of the side view, and increase the main hue of the main sub-pixel compared with the original frame.
  • the ratio is such that the color shift of the side view main color tones affected by the low voltage sub-pixels is improved, the color shift problem of the viewing angle is reduced, and the main signal brightness presentation of the viewing angle is also increased.
  • the brightness of the backlight is increased to three times the original brightness to maintain the overall picture quality, and the brightness of the first, second, and third sub-pixel combinations is unchanged.
  • the second frame only displays the minimum average signal color of the area.
  • the backlights of the first, second, and third color light sources are turned off, and since the second frame only displays a combined signal of one color other than the minimum average signal color, the frame only needs to display the color.
  • Backlight signal similarly, the third frame only shows the combined signal of the last color.
  • Different frames give backlight brightness signals of different colors, which can save energy, without the intensity of the first, second and third light sources.
  • the time is increased to three times the original brightness, and the influence on the image quality or image can be minimized to save energy and color shift.
  • 1 is a color and color shift diagram of an exemplary liquid crystal display prior to color shift adjustment.
  • FIG. 2 is a diagram showing a relationship between red color shift and gray scale of a liquid crystal display according to an embodiment of the present application before color shift adjustment.
  • FIG. 3 is a diagram showing a relationship between green color shift and gray scale of a liquid crystal display according to an embodiment of the present application before color shift adjustment.
  • FIG. 4 is a diagram showing a relationship between blue color shift and gray scale of a liquid crystal display according to an embodiment of the present application before color shift adjustment.
  • FIG. 5 is a diagram showing relationship between red, green, and blue red X, green Y, and blue Z and gray scale of a liquid crystal display according to an embodiment of the present invention before color shift adjustment.
  • FIG. 6 is a diagram showing relationship between red X, green Y, blue Z, and gray scale of a large viewing angle of red, green, and blue before the color shift adjustment of the liquid crystal display according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a driving device of a display device according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a color space system according to an embodiment of the present application.
  • FIG. 9 is a flow chart showing a driving method of a display device according to an embodiment of the present application.
  • the word “comprising” is to be understood to include the component, but does not exclude any other component.
  • “on” means located above or below the target component, and does not mean that it must be on the top based on the direction of gravity.
  • the display device of the present application comprises a display panel and a backlight module, which are oppositely disposed.
  • the display panel mainly includes a color filter substrate, an active array substrate, and a liquid crystal layer interposed between the two substrates.
  • the color filter substrate, the active array substrate and the liquid crystal layer can form a plurality of array configurations.
  • the backlight module can emit light through the display panel and display an image through each pixel unit of the display panel to form an image.
  • the display panel of the present application may be a curved display panel, and the display device of the present application may also be a curved display device.
  • the light alignment technique forms a multi-domain alignment in each pixel unit of the panel such that liquid crystal molecules in one pixel unit are dumped in, for example, four different directions.
  • the optical alignment technique is to irradiate a polymer film (alignment layer) on the color filter substrate or the thin film transistor substrate by using an ultraviolet light source (for example, polarized light) to cause unevenness of the polymer structure on the surface of the film.
  • the photopolymerization, isomerization or cleavage reaction induces a special directionality of the chemical bond structure on the surface of the film to further induce the liquid crystal molecules to be aligned in the direction to achieve optical alignment.
  • VA Vertical Alignment
  • TN Twisted Nematic
  • Super Twisted Nematic Super Twisted Nematic
  • STN In-Plane Switching
  • IPS In-Plane Switching
  • FFS Fringe Field Switching
  • VA Display of the Vertical Alignment
  • PVA Pattern Vertical Alignment
  • MVA Multi-domain Vertical Alignment
  • the fringe field effect and the compensation plate achieve a wide viewing angle.
  • the MVA type divides a single pixel into a plurality of regions, and uses a protrusion or a specific pattern structure to tilt liquid crystal molecules located in different regions toward different directions to achieve a wide viewing angle and enhance the transmittance.
  • liquid crystal molecules are driven in a direction parallel to the plane of the substrate by applying an electric field containing a component substantially parallel to the substrate.
  • the IPS type display panel and the FFS type display panel have the advantages of wide viewing angle.
  • FIG. 1 is a diagram showing the relationship between color system and color shift of an exemplary liquid crystal display before color shift adjustment.
  • the liquid crystal display has a refractive index-wavelength dependence, and different wavelength transmittances are related to the phase delay, exhibiting different degrees of transmittance and wavelength, and with voltage driving, different wavelength phase delays are also generated. Different degrees of variation affect the penetration performance of different wavelengths.
  • the large viewing angles of the various representative color systems of the liquid crystal display and the positive viewing role are changed, and it can be clearly found that the color of the red, green, and blue hue is greater than that of other colors. It is serious, so solving the color-shift defects of the red, green, and blue hue can greatly improve the overall color shift of the large viewing angle.
  • FIG. 2 is a red color shift and gray scale relationship diagram of a liquid crystal display before color shift adjustment according to an embodiment of the present invention
  • FIG. 3 is a diagram showing a relationship between green color shift and gray scale of a liquid crystal display before color shift adjustment according to an embodiment of the present application
  • 4 is a blue color shift and gray scale relationship of a liquid crystal display prior to color shift adjustment according to an embodiment of the present invention
  • FIG. 5 is a front view red, green, and blue color of a liquid crystal display prior to color shift adjustment according to an embodiment of the present application
  • FIG. 6 is a large viewing angle of red, green, blue red X, green Y, blue Z and gray scale of the liquid crystal display before color shift adjustment according to an embodiment of the present application. relation chart.
  • FIG. 2 FIG. 3 and FIG. 4, as shown in FIG. 2, the difference of the visual role difference between the positive viewing angle and the 60-degree horizontal viewing angle under the different color mixing conditions of the green system.
  • the color shift of the red hue combination changes.
  • the red curve 230 gray scale is 160 gray scale
  • the red hue color mixture refers to the green, blue signal is less than red or relatively small compared to red, with the green, blue and red signals. The difference is increased, and the situation is gradually worsened.
  • the positive viewing angle mixed color gray scale is red 160, green 50, blue 50 gray scale, corresponding to the positive viewing angle red X510, green Y520, blue Z530 and full grayscale red 255, green 255, blue 255 gray scale ratio is 37%, 3%, 3% color mixing, corresponding to large viewing angle red X610, green Y620, blue Z630 and large viewing angle full grayscale red 255, green 255, blue 255 grayscale ratio 54%, 23%, 28% mixed color,
  • the ratios of red X, green Y, and blue Z of the positive viewing angle mixed color and the large viewing angle are different, so that the original positive viewing angles of green Y and blue Z are relatively small compared to the red X brightness ratio, and the large viewing angles of green Y and blue Z are relatively small.
  • red X brightness ratio can not be ignored, resulting in a large viewing angle is not a positive viewing angle red hue, a significant color shift.
  • the color shift of various combinations of red hue changes, and as the difference between the green, blue, and red signals increases, the role-biasing situation becomes more serious.
  • the reason is as shown in the above-mentioned FIG. 5 and FIG. 6 .
  • the red, green, and blue luminance ratios of the red, green, and blue luminances are 37%, 3%, and 3% are broadly different from the red, green, and blue luminance ratios of 54%, 23%, and 28%.
  • the difference between the positive viewing angle luminance and the side viewing angle luminance of the lower gray scale signal is larger due to the fast saturation enhancement of the viewing angle luminance ratio of the gray scale liquid crystal display.
  • the color shift value can have a good liquid crystal display viewing angle observation characteristic with a color difference of ⁇ 0.02.
  • the original frame signal is combined into multiple frames to reduce the difference between the red, green and blue luminances of the front view and the side view to achieve the image quality of the low color shift display.
  • FIG. 7 is a schematic diagram of a driving device of a display device according to an embodiment of the present application.
  • a driving device 800 for a display device includes a plurality of red, green, and blue sub-pixels. Each group of red, green, and blue sub-pixels is called a pixel unit 810, and each pixel unit 810 represents An image signal, the application also divides the red, green, and blue LED backlight into a plurality of partitions, each partition 700 is composed of a plurality of pixel units, and the partition size can be defined by itself, and the backlight can be divided into the display and the display. Columns multiply (N*M) multiple partitions, each with separate red, green, and blue LED sources.
  • the driving device of the display device of the present application calculates an average signal of all sub-pixel units in a partition 700, and obtains a partition red average signal, a partition green average signal, and a partition blue average signal; and determines the minimum according to the average signal in the partition.
  • the average signal is the lowest average signal sub-pixel of which the hue is red, green, and blue; the minimum signal of most of the pixel units in the partition is determined to be the hue of one of the red, green, and blue sub-pixels; Performing combined allocation of frame signals; calculating a color signal in an average color space of a pixel unit of each partition, determining a range of the overall average color of the partition; determining a time of each partition frame according to a definition range of hue and color saturation Adjust the brightness of the red, green, and blue light sources; and adjust the brightness of the backlight.
  • a driving device 800 for a display device includes at least one partition 700.
  • Each partition 700 is composed of a plurality of pixel units, and each pixel unit 810 is composed of a red sub-pixel unit.
  • the green sub-pixel unit and the blue sub-pixel unit comprise: calculating an average signal of all the sub-pixel units in a partition 700, and obtaining a partition red average signal, a partition green average signal, and a partition blue average signal; According to the average signal in the partition, the smallest average signal is the lowest average signal sub-pixel belonging to red, green, and blue, and the minimum signal of most of the pixel units in the partition is red, green, and blue.
  • the hue of one of the sub-pixels; the combined allocation of the frame signals; the color signal in the average color space of the pixel unit of each partition 700 is calculated, and the range of the overall average color of the partition is determined; according to the definition of hue and color saturation Range, determine the time of each partition frame corresponding to the brightness of the red, green, and blue light sources; and adjust the back Light brightness; wherein the definition range according to hue and color saturation is a first condition range, and according to the range of the average value of the partition, the second condition range is determined, so that the time of each partition frame is determined to correspond to red, green, and blue.
  • the brightness of the light source is adjusted, and the red sub-pixel unit, the green sub-pixel unit, and the blue sub-pixel unit are arranged in an array.
  • FIG. 8 is a schematic diagram of a color space system according to an embodiment of the present application.
  • a color space system includes: a color coordinate system: brightness (L), saturation (C), and hue (H), and the reference CIE specifications are red (R), green (G), and blue ( B)
  • H is a color representation, represented by 0° to 360° representing different hue colors, where 0° is defined as red, 90° is yellow, 180° is green, and 270° is blue.
  • C is the color purity, which represents the degree of color vividness.
  • the range of C is expressed as 0 to 100, 100 represents the most vivid color, and the value of C shows the display of high and low voltage signals of the liquid crystal display to a certain extent.
  • FIG. 9 is a flow chart showing a driving method of a display device according to an embodiment of the present application.
  • a driving method of a display device includes: calculating an average signal of all sub-pixel units in a partition to obtain a partition red average signal, a partition green average signal, and a partition.
  • the blue average signal; the smallest average signal according to the average signal in the partition is the lowest average signal sub-pixel which is mainly red, green, and blue, and the minimum signal of most of the pixel units in the partition is red.
  • the average signal of all the pixel units in a partition is a red average signal, a green average signal, and a red color combination of the blue average signal, wherein the red average signal is greater than the green average signal and greater than the blue average signal.
  • the red pixel unit, the green pixel unit, and the blue pixel unit are combined in red color
  • the gray level signal and the average signal of the partition are The red average signal, the green average signal, the red color combination of the blue average signal, the red average signal is greater than the green average signal
  • the gray level signal of the blue average signal is in the same order
  • the sub-pixel unit is a red pixel unit and a green pixel unit.
  • the smallest common signal of the blue pixel unit is the blue pixel unit.
  • the sub-pixel unit red pixel unit, the green pixel unit, and the blue pixel unit gray scale signal are changed from 1 frame to 3 frames, and the frame 1 is the first red pixel.
  • a unit, a first green pixel unit, a first blue pixel unit combination, a frame 2 is a second red pixel unit, a second green pixel unit, a second blue pixel unit combination, and a frame 3 is a third red pixel unit.
  • a third green pixel unit, a third blue pixel unit combination wherein the frame 1, the frame 2 and the frame 3 signal combination meets the first red pixel unit plus the second red pixel unit plus the third red pixel unit Equal to the red pixel unit, the first green pixel unit plus the second green pixel unit plus the third green pixel unit is equal to the green pixel unit, the first blue pixel unit plus the second blue pixel unit plus the third blue pixel The unit is equal to the blue pixel unit.
  • the sub-pixel signal of the frame 1 is a first red pixel unit, a first green pixel unit, and the first blue pixel unit combination 1 is a sub-pixel unit minimum color blue pixel unit pixel signal blue.
  • the color pixel unit acts as a common sub-pixel signal of the frame, ie the first red pixel unit is equal to the blue pixel unit, the first green pixel unit is equal to the blue pixel unit, and the first blue pixel unit is equal to the blue pixel unit.
  • the sub-pixel signal of the frame 2 is a second red pixel unit, a second green pixel unit, and the second blue pixel unit is an original signal red pixel unit, a green pixel unit, a blue pixel unit and a map.
  • One of the seed pixel colors of the common sub-pixel signal of the frame 1 signal difference that is, the red, green, and blue sub-pixel difference signals are respectively a red pixel unit - a blue pixel unit, a green pixel unit - a blue pixel unit, and 0
  • the sub-pixel signal of the frame 2 is combined such that the second red pixel unit is equal to the red pixel unit-blue pixel unit, and the second green pixel unit is equal to 0.
  • the second blue pixel unit is equal to zero.
  • the frame 3 is another sub-pixel green signal of the difference, the sub-pixel signal of the frame 3 is combined into a third red pixel unit equal to 0, and the third green pixel unit is equal to the green pixel unit. - a blue pixel unit, the third blue pixel unit being equal to zero.
  • the definition range according to the hue and the color saturation is a first condition range
  • the range of the partition average value is a second condition range, thereby determining that each partition frame time corresponds to red, green, The brightness of the blue light source is adjusted.
  • the first condition range and the second condition range of the defined range are selected from the group consisting of: a first group is when the first condition range hue is between 330° and 30°, and The color saturation is in the range from the first low saturation to the first high saturation, and when the second condition range red average signal is greater than the green average signal is greater than the blue average signal, the second frame blue light source signal is adjusted to 0 or 2 The frame green light source signal is adjusted to 0, and the third frame red and blue light source signals are adjusted to 0; a second group is when the first condition range hue is between 330° and 30°, and the color saturation is In the range of the first low saturation to the first high saturation, and when the second condition range red average signal is greater than the blue average signal is greater than the green average signal, the second frame green light source signal is adjusted to 0 or the second frame blue The light source signal is adjusted to 0, and the red and green light source signals of the third frame are adjusted to 0; a third group is when the first condition range hue is between 30° and 90°, and
  • a fourth group is when the first condition range hue is in the range of 90° to 150°, and the color saturation is in the range from the third low saturation to the third high saturation, and when the second condition range is green average If the signal is greater than the red average signal and greater than the blue average signal, the blue light source signal of the second frame is adjusted to 0 or the red light source signal of the second frame is adjusted to 0, and the green and blue light source signals of the third frame are adjusted to 0;
  • a fifth group is when the first condition range hue is between 150° and 210°, and the color saturation is between the range of fourth low saturation and fourth high saturation, and when the second condition range green average signal is greater than red If the average signal is greater than the blue average signal, the blue light source signal of the second frame is adjusted to 0 or the red light source signal of the second frame is adjusted to 0, and the green and blue light source signals of the third frame are adjusted to 0;
  • Group is the first condition range hue In the 150° to 210° range, and the color saturation is in the range of the fourth low
  • the green light source signal of the second frame is adjusted to 0 or the red light source signal of the second frame is adjusted to 0, and the green and blue light source signals of the third frame are adjusted to 0; and a twelfth
  • the group is when the first condition range hue is between 300° and 330°, and the color saturation is between the range of seventh low saturation and seventh high saturation, and when the second condition range red average signal is greater than the blue average signal If the signal is larger than the green average signal, the green light source signal of the second frame is adjusted to 0 or the blue light source signal of the second frame is adjusted to 0, and the red and green light source signals of the third frame are adjusted to 0, one of the groups.
  • the process S101 calculating an average signal of all sub-pixel units in a partition, and obtaining a partition red average signal, a partition green average signal, and a partition blue average signal.
  • the process S102 determining, according to the average signal in the partition, that the smallest average signal is the lowest average signal sub-pixel that belongs to the red, green, and blue hue.
  • the process S103 determining that the minimum signal of most of the pixel units in the partition is the hue of one of the red, green, and blue sub-pixels.
  • the process S104 performing combined allocation of the frame signals.
  • a process S105 calculating a color signal in an average color space of a pixel unit of each partition, and determining a range of an overall average color of the partition.
  • the flow S106 according to the definition range of the hue and the color saturation, determine the brightness of each of the partition frame times corresponding to the red, green, and blue light sources.
  • the process S107 adjusting the brightness of the backlight.
  • R i,j ,G i,j ,B i,j (the smallest common signal is 40 gray scale, so the gray scale signals of R i,j ,G i,j ,B i,j are changed into three combinations, respectively R1 i,j , G1 i,j ,B1 i,j combination 1 and R2 i,j ,G2 i,j ,B2 i,j combination 2 and R3 i,j ,G3 i,j ,B3 i,j combination 3.
  • the color order can be prioritized for any of the remaining signals.
  • the atomic pixel signal is changed from R i,j ,G i,j ,B i,j into three frame signal combinations, and three sets of frame signal combinations are sequentially presented in time. That is, the original frame signal needs to be tripled.
  • One of the times is to present R1 i,j , G1 i,j , B1 i,j combination 1, another time is to present R2 i,j ,G2 i,j ,B2 i,j combination 2, and another time is to present R3 i,j , G3 i,j ,B3 i,j combination 3.
  • the positive viewing angle brightness ratio is relative to the full gray level signal Gray.
  • 255 is assumed to be SR%, LG%, MB%
  • the side view brightness corresponds to SR'%, LG'%, MB'%, where SR is greater than LG is greater than MB, and SR' is greater than LG' is greater than MB' but lower as above
  • SR% 13.3%
  • LG% 8%
  • MB 1.8%
  • SR'% 40%
  • LG'% 33%
  • MB' 17%.
  • the frame combination is adopted, and since the combination 1 is R1 i, j , G1 i, j , B1 i, j, since the signals are all 40 gray scales, it can be assumed that FIG. 5R1 i , j , G1 i, j , B1 i, j
  • the brightness ratio of the positive viewing angle of the frame is 1.8%, 1.8%, and 1.8%
  • the brightness of the viewing angle of the side of FIG. 6 is 17%, 17%, and 17%.
  • R' i,j , G' i,j ,B' i,j (for example: the smallest common signal is A2, so the sub-pixel unit R' i,j ,G' i,j , B' i, j gray-scale signal becomes 3 gray-scale frames, respectively R'1 i, j , G'1 i, j , B'1 i, j frame combination 1, R'2 i, j , G'2 i,j ,B'2 i,j frame combination 2 and R'3 i,j ,G'3 i,j ,B'3 i,j frame combination 3.
  • a grayscale signal greater than G'i,j is greater than B'i,j
  • most sub-pixel combinations are grayscale signals with A greater than B greater than C
  • the partition The other combinations will be less, so the second frame signal of the sub-pixel does not present a small number of B'i, and the j compensation signal does not have much influence on the overall color or image quality.
  • the sub-pixel signal of the third frame combination 3 only displays the green signal, and the signals of G2 i, j , B2 i, j are 0; therefore, the backlight red and blue light-emitting diodes in the third frame can be displayed in the area.
  • the light source is off.
  • the present invention decomposes the input signals of each group of red, green, and blue sub-pixels into three frame signals by judging the signals of the red, green, and blue sub-pixel combinations, and the display driving frequency is increased by three times.
  • Three decomposed frame signals are respectively displayed, and the three decomposed frame signals enhance the main tone brightness of the side view, increasing the main hue of the main sub-pixel compared with the low-voltage sub-pixel side view brightness of the original frame, so that The color shift of the side view main color tones affected by the low voltage sub-pixels is improved, the color shift problem of the viewing angle is reduced, and the main signal brightness presentation of the viewing angle is also increased.
  • the brightness of the backlight is increased by three times the original brightness to maintain the overall picture quality, and the brightness of the red, green, and blue sub-pixel combinations is unchanged.
  • the second frame only displays the minimum average signal color of the area.
  • One of the colors, the sub-pixel of the second frame, the majority of the sub-pixel signals are 0, and the majority is the color with the smallest average signal of the partition; therefore, the backlight of most of the sub-pixel signals when the second frame is displayed in the second frame is 0.
  • the source red, green, and blue wherein the color light source is turned off, and since the second frame only displays the combined signal of one color except the minimum average signal color, the frame only needs to display the backlight signal of the color;
  • the third frame only shows the combined signal of the last color.
  • Different frames give backlight brightness signals of different colors, which can save energy.
  • the intensity of the red, green and blue light sources is not increased to three times the original brightness. The effect on the quality of the image or the image can be minimized to save energy and improve the color cast.

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Abstract

本申请是有关于一种显示装置的驱动方法及其驱动装置,此显示装置的驱动方法及其驱动装置,为计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及调整背光亮度。

Description

显示装置的驱动方法及其驱动装置 技术领域
本申请涉及一种显示面板的设计方法,特别是涉及一种显示装置的驱动方法及其驱动装置。
背景技术
液晶显示器(liquid-crystal display;LCD)为平面薄型的显示装置,由一定数量的彩色或黑白画素组成,放置于光源或者反射面前方。每个画素由以下几个部分构成:悬浮于两个透明电极间的一列液晶分子层,两边外侧有两个偏振方向互相垂直的偏振过滤片。如果没有电极间的液晶,光通过其中一个偏振过滤片其偏振方向将和第二个偏振片完全垂直,因此被完全阻挡了。但是如果通过一个偏振过滤片的光线偏振方向被液晶旋转,那么它就可以通过另一个偏振过滤片。液晶对光线偏振方向的旋转可以通过静电场控制,从而实现对光的控制。
在将电荷加到透明电极之前,液晶分子的排列被电极表面的排列决定,电极的化学物质表面可作为晶体的晶种。在最常见的扭转向列型(TN)液晶中,液晶上下两个电极垂直排列。液晶分子螺旋排列,通过一个偏振过滤片的光线在通过液晶片后偏振方向发生旋转,从而能够通过另一个偏振片。在此过程中一小部分光线被偏振片阻挡,从外面看上去是灰色。将电荷加到透明电极上后,液晶分子将几乎完全顺着电场方向平行排列,因此透过一个偏振过滤片的光线偏振方向没有旋转,因此光线被完全阻挡了。此时画素看上去是黑色。通过控制电压,可以控制液晶分子排列的扭曲程度,从而达到不同的灰度。
由于液晶本身没有颜色,所以用彩色滤光片产生各种颜色,是液晶显示器由灰阶变为彩色的关键零组件,藉由LCD内部的背光模块提供光源,再搭配驱动IC与液晶控制形成灰阶显示,将光源穿过彩色滤光片的光阻彩色层形成彩色显示画面。
发明内容
为了解决上述技术问题,本申请的目的在于,提供一种显示面板的设计方法,特别是涉及一种显示装置的驱动方法,包括:计算一分区内所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;判断该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及调整背光亮度。
本申请的目的及解决其技术问题采用以下技术方案来实现。依据本申请提出的一种显示装置的驱动方法,包括:计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;依照分区内平均信号判断最小的平均信号是属于第一、 第二、第三哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及调整背光亮度。
本申请的目的及解决其技术问题还可采用以下技术措施进一步实现。
本申请的另一目的一种显示装置的驱动装置,包括至少一个分区,每一分区由多个像素单元组成,每一像素单元由一第一子像素单元、一第二子像素单元及一第三子像素单元构成,包括:计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及调整背光亮度。
本申请的又一目的一种显示装置的驱动装置,包括至少一个分区,每一分区由多个像素单元组成,每一像素单元由一第一子像素单元、一第二子像素单元及一第三子像素单元构成,包括:计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及调整背光亮度;其中所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应第一、第二、第三光源亮度进行调整,所述第一子像素单元、所述第二子像素单元及所述第三子像素单元为阵列式排列。
在本申请的一实施例中,所述当一分区中的所有像素单元的平均信号为第一平均信号,第二平均信号,第三平均信号的第一色相组合,其中第一平均信号大于第二平均信号大于第三平均信号;当该分区中有一组像素单元为第一像素单元,第二像素单元,第三像素单元的第一色相组合,当第一像素单元大于第二像素单元大于第三像素单元的灰阶信号与该分区的平均信号第一平均信号,第二平均信号,第三平均信号的第一色相组合第一平均信号大于第二平均信号大于第三平均信号的灰阶信号的大小顺序相同,得该子像素单元第一像素单元,第二像素单元,第三像素单元最小的共同信号为第三像素单元。
在本申请的一实施例中,将所述子像素单元第一像素单元,第二像素单元,第三像素单元 灰阶信号由1图框变成3个图框的信号组合,分别图框1为第一第一像素单元,第一第二像素单元,第一第三像素单元组合、图框2为第二第一像素单元,第二第二像素单元,第二第三像素单元组合及图框3为第三第一像素单元,第三第二像素单元,第三第三像素单元组合;其中所述图框1、图框2与图框3信号组合满足第一第一像素单元加上第二第一像素单元加上第三第一像素单元等于第一像素单元,第一第二像素单元加上第二第二像素单元加上第三第二像素单元等于第二像素单元,第一第三像素单元加上第二第三像素单元加上第三第三像素单元等于第三像素单元。
在本申请的一实施例中,所述图框1的子像素信号第一第一像素单元,第一第二像素单元,第一第三像素单元组合1是采用该子像素单元最小颜色第三像素单元像素信号第三像素单元当作该图框的共同子像素信号,即第一第一像素单元等于第三像素单元,第一第二像素单元等于第三像素单元,第一第三像素单元等于第三像素单元。
在本申请的一实施例中,所述图框2的子像素信号第二第一像素单元,第二第二像素单元,第二第三像素单元为原信号第一像素单元,第二像素单元,第三像素单元与图框1信号差值的共同子像素信号的其中1种子像素颜色,即第一、第二、第三子像素差值信号分别为第一像素单元-第三像素单元、第二像素单元-第三像素单元、0,其中当图框2采用该差值信号的其中第一子像素信号,图框2的子像素信号组合为第二第一像素单元等于第一像素单元-第三像素单元,第二第二像素单元等于0,第二第三像素单元等于0。
在本申请的一实施例中,所述图框3即为该差值的另一子像素第二信号,图框3的子像素信号组合为第三第一像素单元等于0,第三第二像素单元等于第二像素单元-第三像素单元,第三第三像素单元等于0。
在本申请的一实施例中,所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应第一、第二、第三光源亮度进行调整。
在本申请的一实施例中,所述定义范围的第一条件范围与第二条件范围,选自以下群组:一第一群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低飽和~第一高飽和,且当第二条件范围第一平均信号大于第二平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;一第二群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低飽和~第一高飽和,且当第二条件范围第一平均信号大于第三平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;一第三群组为当第一条件范围色相介于在30°到90°区间,且色饱和度介于范围第二低飽和~第二高飽和,且当第二条件范围第一平均信号大于第二平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0; 一第四群组为当第一条件范围色相介于在90°到150°区间,且色饱和度介于范围第三低飽和~第三高飽和,且当第二条件范围第二平均信号大于第一平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;一第五群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低飽和~第四高飽和,且当第二条件范围第二平均信号大于第一平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;一第六群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低飽和~第四高飽和,且当第二条件范围第二平均信号大于第三平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;一第七群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低飽和~第五高飽和,且当第二条件范围第二平均信号大于第三平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;一第八群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低飽和~第五高飽和,且当第二条件范围第三平均信号大于第二平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;一第九群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低飽和~第六高飽和,且当第二条件范围第三平均信号大于第二平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;一第十群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低飽和~第六高飽和,且当第二条件范围第三平均信号大于第一平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;一第十一群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低飽和~第七高飽和,且当第二条件范围第三平均信号大于第一平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;及一第十二群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低飽和~第七高飽和,且当第二条件范围第一平均信号大于第三平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0,所组成群组之一。
本申请透过对于第一、第二、第三子像素组合的信号判断,将每组第一、第二、第三子像素输入信号分解成三个图框信号呈现,需配合显示器驱动频率增加为三倍,分别显示三个分解的图框信号,三个分解得图框信号提升了侧视角该主色调亮度,增加了该主子像素的主色调相较原图框低电压子像素侧视角亮度得比例,使得侧视角主色调受到低电压子像素影响的色偏情况获得改善, 可以确保视角的色偏问题减轻并且也增加了测视角的主信号亮度呈现。透过背光亮度提升为原亮度三倍维持整体画质显示第一、第二、第三子像素组合亮度不变,但依照分区平均信号的组合,第2图框只显示该区最小平均信号颜色外的其中1种颜色,第2图框的子像素大多数子像素信号为0多数为该分区平均信号最小的颜色;因此可以将该区显示第2图框时的大多数子像素信号为0的背光源第一、第二、第三其中颜色光源关闭,另外,由于该第2图框只显示除最小平均信号颜色外的一种颜色的组合信号,因此该图框只需要显示该颜色的背光信号;同理,第3图框只显示最后一种颜色的组合信号,不同图框给予不同颜色的背光亮度信号,可以起到节能的作用,无需第一、第二、第三光源强度都时刻增强为原亮度的三倍,对于画质或影像的呈现影响可以最小有可以起到节能及色偏改善的功能。
附图说明
图1是范例性液晶显示器在色偏调整之前的色系与色偏关系图。
图2是本申请一实施例液晶显示器在色偏调整之前的红色色偏与灰阶关系图。
图3是本申请一实施例液晶显示器在色偏调整之前的绿色色偏与灰阶关系图。
图4是本申请一实施例液晶显示器在色偏调整之前的蓝色色偏与灰阶关系图。
图5是本申请一实施例液晶显示器在色偏调整之前的正视角红色、绿色、蓝色的红X、绿Y、蓝Z与灰阶关系图。
图6是本申请一实施例液晶显示器在色偏调整之前的大视角红色、绿色、蓝色的红X、绿Y、蓝Z与灰阶关系图。
图7是本申请一实施例提供的显示装置的驱动装置示意图。
图8是本申请一实施例提供的色彩空间系统示意图。
图9是本申请一实施例说明一种显示装置的驱动方法的流程图。
具体实施方式
以下各实施例的说明是参考附加的图式,用以例示本申请可用以实施的特定实施例。本申请所提到的方向用语,例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等,仅是参考附加图式的方向。因此,使用的方向用语是用以说明及理解本申请,而非用以限制本申请。
附图和说明被认为在本质上是示出性的,而不是限制性的。在图中,结构相似的单元是以相同标号表示。另外,为了理解和便于描述,附图中示出的每个组件的尺寸和厚度是任意示出的,但是本申请不限于此。
在附图中,为了清晰起见,夸大了层、膜、面板、区域等的厚度。在附图中,为了理解和便于描述,夸大了一些层和区域的厚度。将理解的是,例如当层、膜、区域或基底的组件被称作“在”另一组件“上”时,所述组件可以直接在所述另一组件上,或者也可以存在中间组件。
另外,在说明书中,除非明确地描述为相反的,否则词语“包括”将被理解为意指包括所述 组件,但是不排除任何其它组件。此外,在说明书中,“在......上”意指位于目标组件上方或者下方,而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本申请为达成预定申请目的所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本申请提出的一种显示装置的驱动方法及其驱动装置,其具体实施方式、结构、特征及其功效,详细说明如后。
本申请的显示装置包含一显示面板以及一背光模块,两者相对设置。显示面板主要包含一彩色滤光基板、一主动阵列基板以及一夹设于两基板之间的液晶层,所述彩色滤光基板、所述主动阵列基板与所述液晶层可形成多个阵列配置的画素单元。所述背光模块可发出光线穿过所述显示面板,并经由所述显示面板各画素单元显示色彩而形成一影像。
在一实施例中,本申请的显示面板可为曲面型显示面板,且本申请的显示装置亦可为曲面型显示装置。
目前显示装置的制造业者在提升垂直配向(Vertical Alignment,VA)型显示面板的广视角技术上,已跨入利用光配向(Photo-alignment)技术来控制液晶分子的配向方向,藉此提高显示面板的光学性能与良率。光配向技术会在面板的各画素单元内形成多领域(Multi-domain)的配向,使得一个画素单元内的液晶分子会倾倒于例如四个不同方向。其中,光配向技术为使用一紫外光源(例如偏极化光)照射在彩色滤光基板或薄膜晶体管基板的一高分子薄膜(配向层)上,使薄膜表面上的高分子结构发生不均匀性的光聚合、异构化或裂解反应,诱使薄膜表面上的化学键结构产生特殊的方向性,以进一步诱导液晶分子顺向排列而达到光配向的目的。
按照液晶的取向方式不同,目前主流市场上的显示面板可以分为以下几种类型:垂直配向(Vertical Alignment,VA)型、扭曲向列(Twisted Nematic,TN)或超扭曲向列(Super Twisted Nematic,STN)型、平面转换(In-Plane Switching,IPS)型及边缘场开关(Fringe Field Switching,FFS)型。所述垂直配向型(Vertical Alignment,VA)模式的显示,例如图形垂直配向型(Patterned Vertical Alignment,PVA)显示器或多区域垂直配向型(Multi-domain Vertical Alignment,MVA)显示装置,其中PVA型利用边缘场效应与补偿板达到广视角的效果。MVA型将一个画素分成多个区域,并使用突起物(Protrusion)或特定图案结构,使位于不同区域的液晶分子朝向不同方向倾倒,以达到广视角且提升穿透率的作用。在IPS模式或FFS模式中,通过施加含有基本平行于基板的分量的电场,使液晶分子在平行于基板平面的方向相应而驱动液晶分子。IPS型显示面板和FFS型显示面板,二者具有广视角的优点。
图1为范例性液晶显示器在色偏调整之前的色系与色偏关系图。请参照图1,液晶显示器由于折射率与波长相关性,不同波长穿透率与相位延迟相关,呈现穿透率与波长有不同程度的表现,并且随着电压驱动,不同波长相位延迟亦会产生不同程度的变化影响不同波长的穿透率表现。如图1所示,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,可以明显发现,偏红色、绿色、 蓝色色相的色系大视角色偏100情况均较其他色系来得严重,因此解决红色、绿色、蓝色色相的色偏缺陷可以大大提升大视角的整体色偏改善。
图2为本申请一实施例液晶显示器在色偏调整之前的红色色偏与灰阶关系图、图3为本申请一实施例液晶显示器在色偏调整之前的绿色色偏与灰阶关系图、图4为本申请一实施例液晶显示器在色偏调整之前的蓝色色偏与灰阶关系图、图5为本申请一实施例液晶显示器在色偏调整之前的正视角红色、绿色、蓝色的红X、绿Y、蓝Z与灰阶关系图及图6为本申请一实施例液晶显示器在色偏调整之前的大视角红色、绿色、蓝色的红X、绿Y、蓝Z与灰阶关系图。请参照图2、图3及图4,如图2所示,正视角与60度水平视角在绿色系不同混色条件下的视角色差变化情形。红色色相组合的色偏变化,当红色曲线230灰阶为160灰阶,红色色相的混色是指绿色、蓝色信号小于红色或者相较于红色相当小时,随着绿色、蓝色与红色信号的差异增加,视角色偏情形逐渐严重。同理,图3的绿色色相组合的色偏变化,随着红色、蓝色与绿色信号的差异增加,视角色偏情形逐渐严重。图4的蓝色色相组合的色偏变化,随着红色、绿色与蓝色信号的差异增加,视角色偏情形逐渐严重。
色偏的原因请参考图5、图6及以下说明。举例说明,正视角混色灰阶为红色160、绿色50、蓝色50灰阶,对应正视角红色X510、绿色Y520、蓝色Z530与全灰阶红色255、绿色255、蓝色255灰阶比例为37%,3%,3%混色,对应大视角红色X610、绿色Y620、蓝色Z630与大视角全灰阶红色255、绿色255、蓝色255灰阶比例54%,23%,28%混色,正视角混色与大视角混色的红色X、绿色Y、蓝色Z比例不同,使得原先正视角绿色Y、蓝色Z相较于红色X亮度比例相当小,大视角绿色Y、蓝色Z相较于红色X亮度比例无法忽视,造成大视角不若正视角红色色相,明显色偏。
参考图2说明,红色色相各种组合的色偏变化,随着绿色、蓝色与红色信号差异的增加,视角色偏情形逐渐严重。原因如上述图5及图6正视角红色、绿色、蓝色亮度比率37%,3%,3%与大视角红色、绿色、蓝色亮度比例54%,23%,28%差异盛大。而且越低灰阶信号的正视角亮度与侧视角亮度差异越大,原因是由于灰阶液晶显示的视角亮度比例的快速饱和提升。现行国际级国家建议色偏值可以在色差≤0.02具有较好的液晶显示视角观察特性。本申请透过将原图框信号做多图框组合,减少正视角与侧视角混色红色、绿色、蓝色亮度度差异来达到低色偏显示的画质呈现。
图7为本申请一实施例提供的显示装置的驱动装置示意图。请参照图7,本申请一实施例,一种显示装置的驱动装置800含有多个红绿蓝子像素构成,每一组红绿蓝子像素我们叫做一像素单元810,每一像素单元810代表一个影像信号,本申请也将红色、绿色、蓝色发光二极管背光源分成多个分区,每个分区700由多个像素单元构成,分区大小可以自行定义,在所述背光源同显示器上可分成列乘行(N*M)多个分区,每一区有独立的红色、绿色、蓝色发光二极管光源。本申请显示装置的驱动装置是计算一分区700内的所有子像素单元的平均信号,得出一分区红色平均信号、 一分区绿色平均信号、一分区蓝色平均信号;依照分区内平均信号判断最小的平均信号是属于红色、绿色、蓝色哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是红色、绿色、蓝色其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整;以及调整背光亮度。
请参照图7,在一实施例中,一种显示装置的驱动装置800,包括至少一个分区700,每一分区700由多个像素单元组成,每一像素单元810由一红色子像素单元、一绿色子像素单元及一蓝色子像素单元构成,包括:计算一分区700内的所有子像素单元的平均信号,得出一分区红色平均信号、一分区绿色平均信号、一分区蓝色平均信号;依照分区内平均信号判断最小的平均信号是属于红色、绿色、蓝色哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是红色、绿色、蓝色其中一个子像素的色相;进行图框信号的组合分配;计算每一分区700的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整;以及调整背光亮度;其中所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整,所述红色子像素单元、所述绿色子像素单元及所述蓝色子像素单元为阵列式排列。
图8是本申请一实施例提供的色彩空间系统示意图。请参照图8,一种色彩空间系统,包括:一色坐标系统:亮度(L)、饱和度(C)、色相(H),参考CIE规范为红色(R)、绿色(G)、蓝色(B)三色空间坐标的函数,分别为L=f1(R、G、B),C=f1(R、G、B),H=f1(R、G、B)。其中H为颜色代表,由0°~360°代表不同色相颜色呈现,其中定义0°为红色,90°为黄色,180°为绿色,270°为蓝色。C为色彩纯度,代表颜色得鲜艳程度,C的范围表示为0到100,100代表最色彩最为鲜艳,C的数值一定程度表现了液晶显示器其显示高低电压信号的呈现。
图9是本申请一实施例说明一种显示装置的驱动方法的流程图。请参照图9,本申请一实施例,一种显示装置的驱动方法,包括:计算一分区内的所有子像素单元的平均信号,得出一分区红色平均信号、一分区绿色平均信号、一分区蓝色平均信号;依照分区内平均信号判断最小的平均信号是属于红色、绿色、蓝色哪一个色相为主的最低平均信号子像素;判断出该分区内的大部分像素单元的最小信号是红色、绿色、蓝色其中一个子像素的色相;进行图框信号的组合分配;计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;根据色相及色饱和度的定义范围,判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整;以及调整背光亮度。
在一实施例中,所述当一分区中的所有像素单元的平均信号为红色平均信号,绿色平均信号,蓝色平均信号的红色色相组合,其中红色平均信号大于绿色平均信号大于蓝色平均信号;当该 分区中有一组像素单元为红色像素单元,绿色像素单元,蓝色像素单元的红色色相组合,当红色像素单元大于绿色像素单元大于蓝色像素单元的灰阶信号与该分区的平均信号红色平均信号,绿色平均信号,蓝色平均信号的红色色相组合红色平均信号大于绿色平均信号大于蓝色平均信号的灰阶信号的大小顺序相同,得该子像素单元红色像素单元,绿色像素单元,蓝色像素单元最小的共同信号为蓝色像素单元。
在一实施例中,将所述子像素单元红色像素单元,绿色像素单元,蓝色像素单元灰阶信号由1图框变成3个图框的信号组合,分别图框1为第一红色像素单元,第一绿色像素单元,第一蓝色像素单元组合、图框2为第二红色像素单元,第二绿色像素单元,第二蓝色像素单元组合及图框3为第三红色像素单元,第三绿色像素单元,第三蓝色像素单元组合;其中所述图框1、图框2与图框3信号组合满足第一红色像素单元加上第二红色像素单元加上第三红色像素单元等于红色像素单元,第一绿色像素单元加上第二绿色像素单元加上第三绿色像素单元等于绿色像素单元,第一蓝色像素单元加上第二蓝色像素单元加上第三蓝色像素单元等于蓝色像素单元。
在一实施例中,所述图框1的子像素信号第一红色像素单元,第一绿色像素单元,第一蓝色像素单元组合1是采用该子像素单元最小颜色蓝色像素单元像素信号蓝色像素单元当作该图框的共同子像素信号,即第一红色像素单元等于蓝色像素单元,第一绿色像素单元等于蓝色像素单元,第一蓝色像素单元等于蓝色像素单元。
在一实施例中,所述图框2的子像素信号第二红色像素单元,第二绿色像素单元,第二蓝色像素单元为原信号红色像素单元,绿色像素单元,蓝色像素单元与图框1信号差值的共同子像素信号的其中1种子像素颜色,即红色、绿色、蓝色子像素差值信号分别为红色像素单元-蓝色像素单元、绿色像素单元-蓝色像素单元、0,其中当图框2采用该差值信号的其中红色子像素信号,图框2的子像素信号组合为第二红色像素单元等于红色像素单元-蓝色像素单元,第二绿色像素单元等于0,第二蓝色像素单元等于0。
在一实施例中,所述图框3即为该差值的另一子像素绿色信号,图框3的子像素信号组合为第三红色像素单元等于0,第三绿色像素单元等于绿色像素单元-蓝色像素单元,第三蓝色像素单元等于0。
在一实施例中,所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整。
在一实施例中,所述定义范围的第一条件范围与第二条件范围,选自以下群组:一第一群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低飽和~第一高飽和,且当第二条件范围红色平均信号大于绿色平均信号大于蓝色平均信号,则第2图框蓝色光源信号调整为0或第2图框绿色光源信号调整为0,而第3图框红色及蓝色光源信号调整为0;一第二群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低飽和~第一高飽 和,且当第二条件范围红色平均信号大于蓝色平均信号大于绿色平均信号,则第2图框绿色光源信号调整为0或第2图框蓝色光源信号调整为0,而第3图框红色及绿色光源信号调整为0;一第三群组为当第一条件范围色相介于在30°到90°区间,且色饱和度介于范围第二低飽和~第二高飽和,且当第二条件范围红色平均信号大于绿色平均信号大于蓝色平均信号,则第2图框蓝色光源信号调整为0或第2图框绿色光源信号调整为0,而第3图框红色及蓝色光源信号调整为0;一第四群组为当第一条件范围色相介于在90°到150°区间,且色饱和度介于范围第三低飽和~第三高飽和,且当第二条件范围绿色平均信号大于红色平均信号大于蓝色平均信号,则第2图框蓝色光源信号调整为0或第2图框红色光源信号调整为0,而第3图框绿色及蓝色光源信号调整为0;一第五群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低飽和~第四高飽和,且当第二条件范围绿色平均信号大于红色平均信号大于蓝色平均信号,则第2图框蓝色光源信号调整为0或第2图框红色光源信号调整为0,而第3图框绿色及蓝色光源信号调整为0;一第六群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低飽和~第四高飽和,且当第二条件范围绿色平均信号大于蓝色平均信号大于红色平均信号,则第2图框红色光源信号调整为0或第2图框蓝色光源信号调整为0,而第3图框红色及绿色光源信号调整为0;一第七群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低飽和~第五高飽和,且当第二条件范围绿色平均信号大于蓝色平均信号大于红色平均信号,则第2图框红色光源信号调整为0或第2图框蓝色光源信号调整为0,而第3图框红色及绿色光源信号调整为0;一第八群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低飽和~第五高飽和,且当第二条件范围蓝色平均信号大于绿色平均信号大于红色平均信号,则第2图框红色光源信号调整为0或第2图框绿色光源信号调整为0,而第3图框红色及蓝色光源信号调整为0;一第九群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低飽和~第六高飽和,且当第二条件范围蓝色平均信号大于绿色平均信号大于红色平均信号,则第2图框红色光源信号调整为0或第2图框绿色光源信号调整为0,而第3图框红色及蓝色光源信号调整为0;一第十群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低飽和~第六高飽和,且当第二条件范围蓝色平均信号大于红色平均信号大于绿色平均信号,则第2图框绿色光源信号调整为0或第2图框红色光源信号调整为0,而第3图框绿色及蓝色光源信号调整为0;一第十一群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低飽和~第七高飽和,且当第二条件范围蓝色平均信号大于红色平均信号大于绿色平均信号,则第2图框绿色光源信号调整为0或第2图框红色光源信号调整为0,而第3图框绿色及蓝色光源信号调整为0;及一第十二群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低飽和~第七高飽和,且当第二条件范围红色平均信号大于蓝色平均信号大于绿色平均信号,则第2图框绿色光源信号调整为0或第2图框蓝色光源信号调整为0,而第3图框红色及绿色光源 信号调整为0,所组成群组之一。
请参照图9,流程S101:计算一分区内的所有子像素单元的平均信号,得出一分区红色平均信号、一分区绿色平均信号、一分区蓝色平均信号。
请参照图9,流程S102:依照分区内平均信号判断最小的平均信号是属于红色、绿色、蓝色哪一个色相为主的最低平均信号子像素。
请参照图9,流程S103:判断出该分区内的大部分像素单元的最小信号是红色、绿色、蓝色其中一个子像素的色相。
请参照图9,流程S104:进行图框信号的组合分配。
请参照图9,流程S105:计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围。
请参照图9,流程S106:根据色相及色饱和度的定义范围,判断各分区图框时间对应红色、绿色、蓝色光源亮度进行调整。
请参照图9,流程S107:调整背光亮度。
在一实施例中,计算显示区内的所有子像素单元R i,j,G i,j,B i,j(其中i,j为该显示区内的一组R、G、B像素单元),举范例当R i,j=100,G i,j=80,B i,j=40的红色色相组合。R i,j,G i,j,B i,j(最小的共同信号为40灰阶,因此将R i,j,G i,j,B i,j灰阶信号变成3个组合,分别为R1 i,j,G1 i,j,B1 i,j组合1及R2 i,j,G2 i,j,B2 i,j组合2及R3 i,j,G3 i,j,B3 i,j组合3。其中R1 i,j,G1 i,j,B1 i,j组合1为最小的共同信号为40灰阶即R1 i,j=40,G1 i,j=40,B1 i,j=40。R2 i,j,G2 i,j,B2 i,j组合2则为原信号与组合1信号差值的其中1种颜色,如上述说明组合2可为R2 i,j=60,G2 i,j=0,B2 i,j=0亦或是R2 i,j=0,G2 i,j=40,B2 i,j=0,组合3则为剩余的最后信号颜色亦即R3 i,j=0,G3 i,j=40,B3 i,j=0亦或是R3 i,j=60,G3 i,j=0,B3 i,j=0,除了组合1为共同信号,组合2、3得颜色顺序可为剩余信号的任意一中颜色优先呈现。
在一实施例中,将原子像素信号由R i,j,G i,j,B i,j变成3个图框信号组合,依序在时间上呈现三组图框信号组合。亦即需要将原图框信号变成三倍。其中一个时间是呈现R1 i,j,G1 i,j,B1 i,j组合1,另一个时间是呈现R2 i,j,G2 i,j,B2 i,j组合2,再另一个时间是呈现R3 i,j,G3 i,j,B3 i,j组合3。
请参照图5及图6,在一实施例中,原图框信号R i,j=100,G i,j=80,B i,j=40的正视角亮度比例相对于全灰阶信号Gray 255假设为SR%、LG%、MB%,侧视角亮度对应为SR’%、LG’%、MB’%,其中SR大于LG大于MB,且SR’大于LG’大于MB’但是如上述越低灰阶信号的正视角亮度与侧视角亮度差异越大亦即可以认知SR/MB大于SR’/MB’且LG/MB大于LG’/MB’,如此混色使得主要亮度信号SR在正视角的亮度相对于MB信号差异大,但大视角时主要亮度信号SR’亮度相对于MB’信号差异小,视角主色调颜色受到影响而色彩鲜艳度下降。参考图5,SR%=13.3%、LG%=8%、MB=1.8%,参考图6,SR’%=40%、LG’%=33%、MB’=17%。
请参照图5及图6,在一实施例中,采用图框组合,组合1由于R1 i,j,G1 i,j,B1 i,j由于信号皆为40灰阶,因此可以设想图5R1 i,j,G1 i,j,B1 i,j在该图框正视角亮度比例为1.8%、1.8%、1.8%,图6侧视角亮度对应为17%、17%、17%。组合2R2 i,j=60,G2 i,j=0,B2 i,j=0,在该图框图5正视角亮度比例为3.8%、0%、0%,图6侧视角亮度对应为26.8%、0%、0%。组合3R2 i,j=0,G2 i,j=40,B2 i,j=0,在该图框图5正视角亮度比例为0%、1.8%、0%,图6侧视角亮度对应为0%、17%、0%。侧视角图框1、图框2与图框3混色比例即R i,j:G i,j:B i,j为17%+26.8%+0%=43.8%,17%+0%+17%=34%,17%+0%+0%=17%。原图框侧视角亮度比例即R i,j:G i,j:B i,j38%,30%,17%,明显主色调R相对于B亮度比例由原图框40/17=2.35提升为组合图框的43.8/17=2.57,主色调画素相对于其他色调明显比例提升,使得视角较接近正视角主色调呈现。
在一实施例中,当该分区存在有其它子像素单元组合R’i,j,G’i,j,B’i,j(其中i,j为该显示区内的一组R、G、B像素单元),举范例当R’i,j=A2,G’i,j=B2,B’i,j=C2的绿色色相组合,假如B2大于C2大于A2的灰阶信号与该分区的平均信号红色平均信号=A,绿色平均信号=B,蓝色平均信号=C的红色色相组合A大于B大于C的灰阶信号的大小顺序不同。
在一实施例中,R’ i,j,G’ i,j,B’ i,j(举例:最小的共同信号为A2,因此将该子像素单元R’ i,j,G’ i,j,B’ i,j灰阶信号变成3个灰阶图框,分别为R’1 i,j,G’1 i,j,B’1 i,j图框组合1、R’2 i,j,G’2 i,j,B’2 i,j图框组合2及R’3 i,j,G’3 i,j,B’3 i,j图框组合3。图框1与图框2与图框3信号组合满足R’1 i,j+R’2 i,j+R’3 i,j=R’ i,j,G’1 i,j+G’2 i,j+G’3 i,j=G’ i,j,B’1 i,j+B’2 i,j+B’3 i,j=B’ i,j。其中R’1 i,j,G’1 i,j,B’1 i,j组合1为采用该子像素单元最小颜色R’ i,j像素信号A2当做该图框的共同子像素信号即R’1 i,j=A2,G’1 i,j=A2,B’1 i,j=A2。图框2的子像素信号R2 i,j,G2 i,j,B2 i,j则为原信号R i,j,G i,j,B i,j与图框1信号差值的共同子像素信号的其中1种子像素颜色,即R、G、B子像素差值信号分别为0、B2-A2、C2-A2,图框2采用该差值信号的其中1个子像素信号,图框3采用该差值的另一子像素信号。若图框2采用该差值信号的其中红色子像素信号,图框2的子像素信号组合为R2 i,j=0,G2 i,j=0,B2 i,j=C2-A2;图框3即为该差值的另一子像素绿色信号,图框3的子像素信号组合为R3 i,j=0,G2 i,j=B2-A2,B2 i,j=0。
在一实施例中,说明当分区平均信号红色平均信号=A,绿色平均信号=B,蓝色平均信号=C的红色色相组合,该分区大多数子像素的组合均为满足R’ i,j大于G’ i,j大于B’ i,j的灰阶信号,该分区大多数的子像素单元图框1信号R1 i,j=A1,G1 i,j=B1,B1 i,j=C1组合为最小的共同信号C1,因此第2图框组合的子像素大多数B2 i,j的信号为0,并且该图框只显示原信号R i,j,G i,j,B i,j与图框1信号差值的共同子像素信号的其中1种子像素颜色,若图框2显示采用该差值信号的其中红色子像素信号,图框2的子像素绿色信号显示于图框3单独显示因此该区显示第2图框时的背光源绿色、蓝色发光二极管光源关闭,这样会使得该分区子像素当不满足R’ i,j大于G’ i,j大于B’ i,j的信号如上述说明R’ i,j=A2,G’ i,j=B2,B’ i,j=C2的绿色色相组合(B2大于C2大于A2)的图框组合2的B’2 i,j=C2-A2 信号无法透过蓝色发光二极管光源正常呈现。但是可以预测由于该分区的平均信号为红色平均信号=A,绿色平均信号=B,蓝色平均信号=C的红色色相组合,多数子像素组合为A大于B大于C的灰阶信号,该分区中其它的组合情况会较少,因此该子像素第2图框信号不呈现少数B’ i,j补偿信号并不会对于整体颜色或画质有太大的影响。第3图框组合3的子像素信号就只显示绿色信号,G2 i,j、B2 i,j的信号为0;因此可以将该区显示第3图框时的背光源红色、蓝色发光二极管光源关闭。
本申请透过对于红色、绿色、蓝色子像素组合的信号判断,将每组红色、绿色、蓝色子像素输入信号分解成三个图框信号呈现,需配合显示器驱动频率增加为三倍,分别显示三个分解的图框信号,三个分解得图框信号提升了侧视角该主色调亮度,增加了该主子像素的主色调相较原图框低电压子像素侧视角亮度得比例,使得侧视角主色调受到低电压子像素影响的色偏情况获得改善,可以确保视角的色偏问题减轻并且也增加了测视角的主信号亮度呈现。透过背光亮度提升为原亮度三倍维持整体画质显示红色、绿色、蓝色子像素组合亮度不变,但依照分区平均信号的组合,第2图框只显示该区最小平均信号颜色外的其中1种颜色,第2图框的子像素大多数子像素信号为0多数为该分区平均信号最小的颜色;因此可以将该区显示第2图框时的大多数子像素信号为0的背光源红色、绿色、蓝色其中颜色光源关闭,另外,由于该第2图框只显示除最小平均信号颜色外的一种颜色的组合信号,因此该图框只需要显示该颜色的背光信号;同理,第3图框只显示最后一种颜色的组合信号,不同图框给予不同颜色的背光亮度信号,可以起到节能作用,无需红绿蓝色光源强度都时刻增强为原亮度的三倍,对画质或影像的呈现影响可以最小有可以起到节能及色偏改善的功能。
“在一些实施例中”及“在各种实施例中”等用语被重复地使用。所述用语通常不是指相同的实施例;但它亦可以是指相同的实施例。“包含”、“具有”及“包括”等用词是同义词,除非其前后文意显示出其它意思。
以上所述,仅是本申请的较具体实施例而已,并非对本申请作任何形式上的限制,虽然本申请已以较具体实施例揭露如上,然而并非用以限定本申请,任何熟悉本专业的技术人员,在不脱离本申请技术方案范围内,当可利用上述揭示的技术内容作出些许更动或修饰为等同变化的等效实施例,但凡是未脱离本申请技术方案的内容,依据本申请的技术实质对以上实施例所作的任何简单修改、等同变化与修饰,均仍属于本申请技术方案的范围内。

Claims (20)

  1. 一种显示装置的驱动方法,包括:
    计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;
    依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;
    判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;
    进行图框信号的组合分配;
    计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;
    根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及
    调整背光亮度。
  2. 如权利要求1所述的显示装置的驱动方法,其中,所述当一分区中的所有像素单元的平均信号为第一平均信号,第二平均信号,第三平均信号的第一色相组合。
  3. 如权利要求2所述的显示装置的驱动方法,其中,所述第一平均信号大于第二平均信号大于第三平均信号。
  4. 如权利要求2所述的显示装置的驱动方法,其中,当该分区中有一组像素单元为第一像素单元,第二像素单元,第三像素单元的第一色相组合,当第一像素单元大于第二像素单元大于第三像素单元的灰阶信号与该分区的平均信号第一平均信号,第二平均信号,第三平均信号的第一色相组合第一平均信号大于第二平均信号大于第三平均信号的灰阶信号的大小顺序相同,得该子像素单元第一像素单元,第二像素单元,第三像素单元最小的共同信号为第三像素单元。
  5. 如权利要求2所述的显示装置的驱动方法,其中,将所述子像素单元第一像素单元,第二像素单元,第三像素单元灰阶信号由1图框变成3个图框的信号组合,分别图框1为第一第一像素单元,第一第二像素单元,第一第三像素单元组合、图框2为第二第一像素单元,第二第二像素单元,第二第三像素单元组合及图框3为第三第一像素单元,第三第二像素单元,第三第三像素单元组合;其中所述图框1、图框2与图框3信号组合满足第一第一像素单元加上第二第一像素单元加上第三第一像素单元等于第一像素单元,第一第二像素单元加上第二第二像素单元加上第三第二像素单元等于第二像素单元,第一第三像素单元加上第二第三像素单元加上第三第三像素单元等于第三像素单元。
  6. 如权利要求5所述的显示装置的驱动方法,其中,所述图框1的子像素信号第一第一像素单元, 第一第二像素单元,第一第三像素单元组合1是采用该子像素单元最小颜色第三像素单元像素信号第三像素单元当作该图框的共同子像素信号,即第一第一像素单元等于第三像素单元,第一第二像素单元等于第三像素单元,第一第三像素单元等于第三像素单元。
  7. 如权利要求5所述的显示装置的驱动方法,其中,所述图框2的子像素信号第二第一像素单元,第二第二像素单元,第二第三像素单元为原信号第一像素单元,第二像素单元,第三像素单元与图框1信号差值的共同子像素信号的其中1种子像素颜色,即第一、第二、第三子像素差值信号分别为第一像素单元-第三像素单元、第二像素单元-第三像素单元、0,其中当图框2采用该差值信号的其中第一子像素信号,图框2的子像素信号组合为第二第一像素单元等于第一像素单元-第三像素单元,第二第二像素单元等于0,第二第三像素单元等于0。
  8. 如权利要求5所述的显示装置的驱动方法,其中,所述图框3即为该差值的另一子像素第二信号,图框3的子像素信号组合为第三第一像素单元等于0,第三第二像素单元等于第二像素单元-第三像素单元,第三第三像素单元等于0。
  9. 如权利要求1所述的显示装置的驱动方法,其中,所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应第一、第二、第三光源亮度进行调整。
  10. 如权利要求9所述的显示装置的驱动方法,其中,所述定义范围的第一条件范围与第二条件范围,选自以下群组:
    一第一群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低饱和~第一高饱和,且当第二条件范围第一平均信号大于第二平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;
    一第二群组为当第一条件范围色相介于在330°到30°区间,且色饱和度介于范围第一低饱和~第一高饱和,且当第二条件范围第一平均信号大于第三平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;
    一第三群组为当第一条件范围色相介于在30°到90°区间,且色饱和度介于范围第二低饱和~第二高饱和,且当第二条件范围第一平均信号大于第二平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;
    一第四群组为当第一条件范围色相介于在90°到150°区间,且色饱和度介于范围第三低饱和~第三高饱和,且当第二条件范围第二平均信号大于第一平均信号大于第三平均信号,则第2图 框第三光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;
    一第五群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低饱和~第四高饱和,且当第二条件范围第二平均信号大于第一平均信号大于第三平均信号,则第2图框第三光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;
    一第六群组为当第一条件范围色相介于在150°到210°区间,且色饱和度介于范围第四低饱和~第四高饱和,且当第二条件范围第二平均信号大于第三平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;
    一第七群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低饱和~第五高饱和,且当第二条件范围第二平均信号大于第三平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0;
    一第八群组为当第一条件范围色相介于在210°到240°区间,且色饱和度介于范围第五低饱和~第五高饱和,且当第二条件范围第三平均信号大于第二平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;
    一第九群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低饱和~第六高饱和,且当第二条件范围第三平均信号大于第二平均信号大于第一平均信号,则第2图框第一光源信号调整为0或第2图框第二光源信号调整为0,而第3图框第一及第三光源信号调整为0;
    一第十群组为当第一条件范围色相介于在240°到300°区间,且色饱和度介于范围第六低饱和~第六高饱和,且当第二条件范围第三平均信号大于第一平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;
    一第十一群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低饱和~第七高饱和,且当第二条件范围第三平均信号大于第一平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第一光源信号调整为0,而第3图框第二及第三光源信号调整为0;及
    一第十二群组为当第一条件范围色相介于在300°到330°区间,且色饱和度介于范围第七低饱 和~第七高饱和,且当第二条件范围第一平均信号大于第三平均信号大于第二平均信号,则第2图框第二光源信号调整为0或第2图框第三光源信号调整为0,而第3图框第一及第二光源信号调整为0,所组成群组之一。
  11. 一种显示装置的驱动装置,包括至少一个分区,每一分区由多个像素单元组成,每一像素单元由一第一子像素单元、一第二子像素单元及一第三子像素单元构成,包括:
    计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;
    依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;
    判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;
    进行图框信号的组合分配;
    计算每一分区像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;
    根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及
    调整背光亮度。
  12. 如权利要求11所述的显示装置的驱动装置,其中,所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应第一、第二、第三光源亮度进行调整。
  13. 如权利要求11所述的显示装置的驱动装置,其中,所述第一子像素单元、所述第二子像素单元及所述第三子像素单元为阵列式排列。
  14. 如权利要求11所述的显示装置的驱动装置,其中,所述当一分区中的所有像素单元的平均信号为第一平均信号,第二平均信号,第三平均信号的第一色相组合。
  15. 如权利要求14所述的显示装置的驱动装置,其中,所述第一平均信号大于第二平均信号大于第三平均信号。
  16. 如权利要求12所述的显示装置的驱动装置,其中,当该分区中有一组像素单元为第一像素单元,第二像素单元,第三像素单元的第一色相组合,当第一像素单元大于第二像素单元大于第三像素单元的灰阶信号与该分区的平均信号第一平均信号,第二平均信号,第三平均信号的第一色相组合第一平均信号大于第二平均信号大于第三平均信号的灰阶信号的大小顺序相同,得该子像素单元第一像素单元,第二像素单元,第三像素单元最小的共同信号为第三像素单元。
  17. 如权利要求12所述的显示装置的驱动装置,其中,将所述子像素单元第一像素单元,第二像素单元,第三像素单元灰阶信号由1图框变成3个图框的信号组合,分别图框1为第一第一像素 单元,第一第二像素单元,第一第三像素单元组合、图框2为第二第一像素单元,第二第二像素单元,第二第三像素单元组合及图框3为第三第一像素单元,第三第二像素单元,第三第三像素单元组合。
  18. 如权利要求17所述的显示装置的驱动装置,其中,所述图框1、图框2与图框3信号组合满足第一第一像素单元加上第二第一像素单元加上第三第一像素单元等于第一像素单元,第一第二像素单元加上第二第二像素单元加上第三第二像素单元等于第二像素单元,第一第三像素单元加上第二第三像素单元加上第三第三像素单元等于第三像素单元。
  19. 如权利要求18所述的显示装置的驱动装置,其中,所述图框1的子像素信号第一第一像素单元,第一第二像素单元,第一第三像素单元组合1是采用该子像素单元最小颜色第三像素单元像素信号第三像素单元当作该图框的共同子像素信号,即第一第一像素单元等于第三像素单元,第一第二像素单元等于第三像素单元,第一第三像素单元等于第三像素单元。
  20. 一种显示装置的驱动装置,包括至少一个分区,每一分区由多个像素单元组成,每一像素单元由一第一子像素单元、一第二子像素单元及一第三子像素单元构成,包括:
    计算一分区内的所有子像素单元的平均信号,得出一分区第一平均信号、一分区第二平均信号、一分区第三平均信号;
    依照分区内平均信号判断最小的平均信号是属于第一、第二、第三哪一个色相为主的最低平均信号子像素;
    判断出该分区内的大部分像素单元的最小信号是第一、第二、第三其中一个子像素的色相;
    进行图框信号的组合分配;
    计算每一分区的像素单元的平均色彩空间中的色彩信号,判断该分区的整体平均颜色所在范围;
    根据色相及色饱和度的定义范围,判断各分区图框时间对应第一、第二、第三光源亮度进行调整;以及
    调整背光亮度;其中所述根据色相及色饱和度的定义范围为一第一条件范围,且根据分区平均值大小范围为一第二条件范围,因而判断各分区图框时间对应第一、第二、第三光源亮度进行调整,所述第一子像素单元、所述第二子像素单元及所述第三子像素单元为阵列式排列。
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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107564490B (zh) * 2017-10-25 2019-07-12 惠科股份有限公司 一种显示装置的驱动方法及显示装置
CN108010492B (zh) * 2017-12-20 2019-09-13 惠科股份有限公司 一种显示面板的背光调节方法、背光调节装置及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200634377A (en) * 2005-03-29 2006-10-01 Chi Mei Optoelectronics Corp Region-based displayer and display method thereof
US20090028460A1 (en) * 2007-07-27 2009-01-29 Korean Electronics Technology Institute Method And Apparatus For Adjusting Backlight Brightness
CN103854613A (zh) * 2014-02-14 2014-06-11 北京京东方显示技术有限公司 光源控制模块、背光模组及其驱动方法、显示装置
CN104297960A (zh) * 2014-10-21 2015-01-21 天津三星电子有限公司 一种画面显示方法及装置
CN104900203A (zh) * 2015-06-11 2015-09-09 深圳市华星光电技术有限公司 液晶面板及其驱动方法
CN105469750A (zh) * 2016-02-01 2016-04-06 东南大学 一种基于局域基色去饱和算法的彩色显示控制方法
CN106782375A (zh) * 2016-12-27 2017-05-31 惠科股份有限公司 液晶显示器件及其驱动方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101009083A (zh) * 2006-01-26 2007-08-01 奇美电子股份有限公司 应用于显示器的显示方法及显示器
US8970808B2 (en) * 2012-09-11 2015-03-03 Apple Inc. Display with temperature sensors
KR102060604B1 (ko) * 2013-02-28 2019-12-31 삼성디스플레이 주식회사 휘도 조절부, 이를 포함하는 표시 장치 및 이를 이용한 휘도 조절 방법
CN104952412B (zh) * 2015-07-15 2018-04-13 深圳市华星光电技术有限公司 液晶面板的驱动方法及驱动装置
JP2017027728A (ja) * 2015-07-21 2017-02-02 凸版印刷株式会社 有機el素子、有機el照明、有機el光源および有機el表示装置
US9812053B2 (en) * 2016-03-07 2017-11-07 Dell Products L.P. Reducing LCD power consumption by preferentially dimming individual colors
CN105931605B (zh) * 2016-05-12 2018-09-18 深圳市华星光电技术有限公司 一种图像显示方法及显示装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200634377A (en) * 2005-03-29 2006-10-01 Chi Mei Optoelectronics Corp Region-based displayer and display method thereof
US20090028460A1 (en) * 2007-07-27 2009-01-29 Korean Electronics Technology Institute Method And Apparatus For Adjusting Backlight Brightness
CN103854613A (zh) * 2014-02-14 2014-06-11 北京京东方显示技术有限公司 光源控制模块、背光模组及其驱动方法、显示装置
CN104297960A (zh) * 2014-10-21 2015-01-21 天津三星电子有限公司 一种画面显示方法及装置
CN104900203A (zh) * 2015-06-11 2015-09-09 深圳市华星光电技术有限公司 液晶面板及其驱动方法
CN105469750A (zh) * 2016-02-01 2016-04-06 东南大学 一种基于局域基色去饱和算法的彩色显示控制方法
CN106782375A (zh) * 2016-12-27 2017-05-31 惠科股份有限公司 液晶显示器件及其驱动方法

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