WO2023044989A1 - 显示装置的驱动方法及显示装置 - Google Patents

显示装置的驱动方法及显示装置 Download PDF

Info

Publication number
WO2023044989A1
WO2023044989A1 PCT/CN2021/123504 CN2021123504W WO2023044989A1 WO 2023044989 A1 WO2023044989 A1 WO 2023044989A1 CN 2021123504 W CN2021123504 W CN 2021123504W WO 2023044989 A1 WO2023044989 A1 WO 2023044989A1
Authority
WO
WIPO (PCT)
Prior art keywords
picture
pixel
sub
current frame
information
Prior art date
Application number
PCT/CN2021/123504
Other languages
English (en)
French (fr)
Inventor
王保军
Original Assignee
惠州华星光电显示有限公司
Tcl华星光电技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 惠州华星光电显示有限公司, Tcl华星光电技术有限公司 filed Critical 惠州华星光电显示有限公司
Priority to US17/611,538 priority Critical patent/US20240046897A1/en
Publication of WO2023044989A1 publication Critical patent/WO2023044989A1/zh

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—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
    • G09G3/2003—Display of colours
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/40—Extraction of image or video features
    • G06V10/60—Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/70—Arrangements for image or video recognition or understanding using pattern recognition or machine learning
    • G06V10/74—Image or video pattern matching; Proximity measures in feature spaces
    • G06V10/75—Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video features; Coarse-fine approaches, e.g. multi-scale approaches; using context analysis; Selection of dictionaries
    • G06V10/751—Comparing pixel values or logical combinations thereof, or feature values having positional relevance, e.g. template matching
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/10—Special adaptations of display systems for operation with variable images
    • G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G09G2330/023—Power management, e.g. power saving using energy recovery or conservation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/04—Display protection
    • G09G2330/045—Protection against panel overheating
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/16—Determination of a pixel data signal depending on the signal applied in the previous frame
    • 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
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Definitions

  • the present application relates to the field of display, and in particular to a method for driving a display device and a display device.
  • the driver chip is under high load, which will not only cause excessive temperature and cause damage to the driver chip, but also It will also cause a large amount of current consumption and increase the power consumption of the display device.
  • the embodiment of the present application provides a driving method of a display device and a display device, which can solve the problem of damage to the driver chip caused by excessive temperature when the driver chip is in a high-load state under a heavy-loaded screen, and can solve the problem of current consumption. large, high power consumption of the display device.
  • An embodiment of the present application provides a method for driving a display device, including the following driving steps:
  • Step S100 Obtain first picture information and second picture information, the first picture information is the picture information of the current frame picture, and the second picture information is the picture information of a frame picture before the current frame picture;
  • Step S200 According to the first picture information and the second picture information, determine whether the current frame picture belongs to a dynamic picture;
  • Step S300 According to the picture information of the current frame picture in the dynamic picture, judge whether the current frame picture is an overloaded picture, and obtain the pixel information of the heavy-duty sub-pixel in the picture;
  • Step S400 Execute grayscale energy-saving driving on the corresponding reloaded sub-pixels according to the image information of the reloaded image.
  • the gray-scale energy-saving driving includes: reducing the difference between the gray-scale values of the reloaded sub-pixel and adjacent sub-pixels on the same column.
  • the method for reducing the grayscale value difference between the reloaded sub-pixel and the adjacent sub-pixel on the same column is expressed by the following calculation formula:
  • a+2b 1, a>0, b>0, a ⁇ b
  • a represents the gray-scale change weight of the reloaded sub-pixel
  • b represents the gray-scale change weight of the adjacent sub-pixels in the previous row and the adjacent sub-pixels in the next row.
  • the first picture information includes a first average brightness value, and the first average brightness value is an average brightness value of the current frame picture;
  • the second picture information includes a second average brightness value, and the second average brightness value is an average brightness value of a frame picture before the current frame picture.
  • the determining whether the current frame picture belongs to a dynamic picture according to the first picture information and the second picture information includes:
  • the current frame picture is the dynamic picture; the second average brightness value is equal to If the first average brightness value is used, then the current frame picture is a static picture.
  • step S300 according to the picture information of the current frame picture in the dynamic picture, it is judged whether the current frame picture is an overloaded picture, and the The pixel information of the reloaded sub-pixels in the screen includes:
  • Step S310 Calculate the reload weight per pixel of the current frame picture, the calculation formula of the reload weight is expressed as:
  • W N is the overload weight
  • i represents the i-th row pixel
  • i+1 represents the i+1-th row pixel
  • j represents the j-th column pixel
  • j+k represents the j+k-th column pixel
  • R represents the red sub-pixel
  • G is the gray scale value of the green sub-pixel
  • B is the gray scale value of the blue sub-pixel
  • N is the range of the pixel column for calculating the overload weight
  • P is the gray scale difference
  • K is a positive integer
  • 3*NP represents the overload threshold
  • Step S320 Comparing the reload weight of each pixel with the reload threshold, if the reload weight of the pixel is greater than the reload threshold, then the pixel is a reload pixel; If the overload weight is less than or equal to the overload threshold, the pixel is a non-overload pixel, and the pixel information of the overload sub-pixel in the overload pixel is acquired.
  • the P value is greater than or equal to (255*2)/3.
  • the value of N is greater than or equal to 30, and the value of N is less than or equal to 120.
  • the picture of one frame before the picture of the current frame is a picture of one frame before the picture of m frames, m is greater than 1, and m is less than 5.
  • the embodiment of the present application also provides a display device, which includes a driving chip, and the driving chip executes a driving method of the display device, and the driving method of the display device includes the following driving steps:
  • Step S100 Obtain first picture information and second picture information, the first picture information is the picture information of the current frame picture, and the second picture information is the picture information of a frame picture before the current frame picture;
  • Step S200 According to the first picture information and the second picture information, determine whether the current frame picture belongs to a dynamic picture;
  • Step S300 According to the picture information of the current frame picture in the dynamic picture, judge whether the current frame picture is an overloaded picture, and obtain the pixel information of the heavy-duty sub-pixel in the picture;
  • Step S400 Execute grayscale energy-saving driving on the corresponding reloaded sub-pixels according to the image information of the reloaded image.
  • the gray-scale energy-saving driving includes: reducing the difference between the gray-scale values of the reloaded sub-pixel and adjacent sub-pixels on the same column.
  • the method for reducing the grayscale value difference between the reloaded sub-pixel and the adjacent sub-pixel on the same column is expressed by the following calculation formula:
  • a+2b 1, a>0, b>0, a ⁇ b
  • a represents the gray-scale change weight of the reloaded sub-pixel
  • b represents the gray-scale change weight of the adjacent sub-pixels in the previous row and the adjacent sub-pixels in the next row.
  • the first picture information includes a first average brightness value, and the first average brightness value is an average brightness value of the current frame picture;
  • the second picture information includes a second average brightness value, and the second average brightness value is an average brightness value of a frame picture before the current frame picture.
  • the determining whether the current frame picture belongs to a dynamic picture according to the first picture information and the second picture information includes:
  • the current frame picture is the dynamic picture; the second average brightness value is equal to If the first average brightness value is used, then the current frame picture is a static picture.
  • step S300 according to the picture information of the current frame picture in the dynamic picture, it is judged whether the current frame picture is an overloaded picture, and the The pixel information of the reloaded sub-pixels in the screen includes:
  • Step S310 Calculate the reload weight per pixel of the current frame picture, the calculation formula of the reload weight is expressed as:
  • W N is the overload weight
  • i represents the i-th row pixel
  • i+1 represents the i+1-th row pixel
  • j represents the j-th column pixel
  • j+k represents the j+k-th column pixel
  • R represents the red sub-pixel
  • G is the gray scale value of the green sub-pixel
  • B is the gray scale value of the blue sub-pixel
  • N is the range of the pixel column for calculating the overload weight
  • P is the gray scale difference
  • K is a positive integer
  • 3*NP represents the overload threshold
  • Step S320 Comparing the reload weight of each pixel with the reload threshold, if the reload weight of the pixel is greater than the reload threshold, then the pixel is a reload pixel; If the overload weight is less than or equal to the overload threshold, the pixel is a non-overload pixel, and the pixel information of the overload sub-pixel in the overload pixel is obtained.
  • the P value is greater than or equal to (255*2)/3.
  • the value of N is greater than or equal to 30, and the value of N is less than or equal to 120.
  • the picture of one frame before the picture of the current frame is a picture of one frame before the picture of m frames, m is greater than 1, and m is less than 5.
  • the embodiment of the present application provides a driving method of a display device and a display device.
  • the gray scale is used for the heavy load sub-pixel.
  • the method of energy-saving driving by reducing the difference between the gray scale value of the heavy-duty sub-pixel and the adjacent sub-pixel on the same column, reduces the voltage difference between the high gray-scale drive and the low gray-scale drive of the data line, thereby improving the performance of the driver chip.
  • the high-load state under the heavy-load screen avoids damage to the drive chip caused by excessive temperature, reduces the consumption of the drive current, and reduces the power consumption of the display device.
  • FIG. 1 is a schematic diagram of driving steps of a method for driving a display device provided by an embodiment of the present application
  • FIG. 2 is a schematic diagram of pixel arrangement of a display device provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of an improvement process of reloading sub-pixels provided by an embodiment of the present application
  • FIG. 4 is a schematic diagram of a reloading screen of a display device provided by an embodiment of the present application.
  • Fig. 5 is a schematic diagram of an improved reloading screen of a display device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a partially reloaded screen of a display device provided by an embodiment of the present application.
  • Fig. 7 is a schematic diagram of displaying text images of a display device provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a display device provided by an embodiment of the present application.
  • the embodiment of the present application provides a driving method of a display device, including the following driving steps: Step S100: Obtain first picture information and second picture information, the first picture information is the picture information of the current frame picture, and the second picture information is The picture information of a frame picture before the current frame picture; Step S200: According to the first picture information and the second picture information, judge whether the current frame picture belongs to a dynamic picture; Step S300: According to the picture information of the current frame picture in the dynamic picture, Determine whether the current frame image is an overloaded image, and obtain pixel information of the overloaded sub-pixels in the image; Step S400 : perform grayscale energy-saving driving on the corresponding overloaded sub-pixels according to the image information of the overloaded image.
  • Embodiments of the present application provide a method for driving a display device and a display device. Each will be described in detail below. It should be noted that the description sequence of the following embodiments is not intended to limit the preferred sequence of the embodiments.
  • FIG. 1 is a schematic diagram of the driving steps of a display device driving method provided by an embodiment of the present application
  • Fig. 2 is a schematic diagram of the driving steps of the present application
  • FIG. 3 is a schematic diagram of the reloading sub-pixel improvement process provided in the embodiment of the present application
  • FIG. 4 is an overloaded screen of a display device provided in the embodiment of the present application
  • Fig. 5 is a schematic diagram of an improved reloading screen of a display device provided in an embodiment of the present application
  • Fig. 1 is a schematic diagram of the driving steps of a display device driving method provided by an embodiment of the present application
  • FIG. 3 is a schematic diagram of the reloading sub-pixel improvement process provided in the embodiment of the present application
  • FIG. 4 is an overloaded screen of a display device provided in the embodiment of the present application
  • Fig. 5 is a schematic diagram of an improved reloading screen of a display device provided in an embodiment of the present application
  • Fig. 1 is a schematic
  • FIG. 6 is a schematic diagram of a partial reloading screen of a display device provided in an embodiment of the present application
  • Fig. 7 is a schematic diagram of an improved reloading screen of a display device provided in an embodiment of the present application
  • an embodiment of the present application provides a driving method of a display device, including the following driving steps: step S100 , step S200 , step S300 , and step S400 .
  • Step S100 Obtain first picture information and second picture information.
  • the first picture information is the picture information of the current frame picture
  • the second picture information is the picture information of a frame picture before the current frame picture.
  • Step S200 According to the first picture information and the second picture information, determine whether the current frame picture belongs to a dynamic picture.
  • Step S300 According to the picture information of the current frame picture in the dynamic picture, determine whether the current frame picture is an overloaded picture, and obtain the pixel information of the heavy-duty sub-pixel in the picture.
  • Step S400 Execute gray-scale energy-saving driving on corresponding reloaded sub-pixels according to the image information of the reloaded image.
  • FIG. 2 illustrates a 1G1D (1Gate 1Data) pixel drive architecture by way of example.
  • the display device includes multiple columns of first sub-pixels 11, multiple columns of second sub-pixels 12, and multiple columns of third sub-pixels 13, each column of the first sub-pixel
  • One sub-pixel 11 is driven by a corresponding data line 14
  • each second sub-pixel 12 is driven by a corresponding data line 14
  • each third sub-pixel 13 is driven by a corresponding data line 14
  • the first sub-pixel 11 can be red
  • the second sub-pixel 12 may be a green sub-pixel
  • the third sub-pixel 13 may be a blue sub-pixel.
  • a static picture refers to a display content in which the displayed picture does not change within a period of time
  • a dynamic picture refers to a display content in which the displayed picture does not change within a period of time
  • the second picture information is picture information of a frame picture before the current frame picture.
  • the second picture may be a previous frame picture
  • the second picture may be a previous frame picture of the previous frame picture, and so on, and not all of them are listed here.
  • the subpixels in the same column include alternately reloaded subpixels 22 and adjacent subpixels 21 .
  • the difference is very large.
  • the data line 14 drives the heavy-duty sub-pixel 22 and the adjacent sub-pixel 21 on the same column, the data line needs to switch back and forth frequently between high-brightness driving and low-dark driving, for example, the gray of the heavy-duty sub-pixel The scale is 255, and the gray scale of the adjacent sub-pixel 21 is 0.
  • the data line 14 needs to be frequently switched back and forth between the 255 gray scale drive and the 0 gray scale drive, that is, when the picture of one frame is driven
  • the voltage variation range of the same data line is very large.
  • the driver chip is under a high load state, which will not only cause excessive temperature to cause damage to the driver chip, but also cause a large amount of current consumption and increase the power consumption of the display device. .
  • the gray-scale energy-saving driving includes: reducing the gray-scale value difference between the reloaded sub-pixel and the adjacent sub-pixels on the same column.
  • the sub-pixels 63 are arranged sequentially in columns, the fourth sub-pixel 61, the fifth sub-pixel 62 and the sixth sub-pixel 63 are driven by the same data line, the fifth sub-pixel 62 is a heavy-duty sub-pixel, and the fourth sub-pixel 61 is a fifth
  • the sub-pixel 62 is an adjacent sub-pixel in the upper row
  • the sixth sub-pixel 63 is an adjacent sub-pixel in the lower row of the fifth sub-pixel 62 .
  • the gray-scale energy-saving driving includes reducing the gray-scale value difference between the overloaded sub-pixel 22 and the adjacent sub-pixels on the same column, while maintaining The overall brightness of the overloaded sub-pixel 22 and the adjacent sub-pixels on the same column remains unchanged, that is, the fifth sub-pixel 62 (the fifth sub-pixel 62 is a heavy-duty sub-pixel) and the sixth sub-pixel 63, the fourth sub-pixel 61, etc.
  • the gray scale difference of the fourth sub-pixel 61 , the fifth sub-pixel 62 and the sixth sub-pixel 63 can be kept unchanged at the same time.
  • the method for reducing the gray scale value difference between the overloaded sub-pixel and the adjacent sub-pixel on the same column is expressed by the following calculation formula:
  • a+2b 1, a>0, b>0, a ⁇ b
  • a represents the gray-scale change weight of the overloaded sub-pixel
  • b represents the gray-scale change weight of the adjacent sub-pixel in the upper row and the adjacent sub-pixel in the lower row.
  • a represents the gray scale change weight of the reloaded sub-pixel 22 (the fifth sub-pixel 62 is a reloaded sub-pixel), b represents the upper row of adjacent sub-pixels (the fourth sub-pixel 61) and the lower The gray scale change weight of a row of adjacent sub-pixels (the sixth sub-pixel 63 ).
  • a+2b 1
  • the overall brightness of the reloaded sub-pixel 22 and the adjacent sub-pixels on the same column is kept unchanged before and after the gray-scale energy-saving drive, that is, the fourth sub-pixel 61 and the fifth sub-pixel are kept at the same time.
  • the overall luminances of 62 and the sixth sub-pixel 63 remain unchanged before and after the gray-scale energy-saving driving.
  • the first picture information includes a first average brightness value, the first average brightness value is the average brightness value of the current frame picture; the second picture information includes a second average brightness value, the second average The brightness value is the average brightness value of a frame before the current frame.
  • the first average brightness value refers to the average brightness value of the current frame picture, that is, the average pixel brightness value (APL) of the current frame picture.
  • the second average brightness value is the average brightness value of a frame before the current frame, that is, the average pixel brightness (APL) of a frame before the current frame.
  • step S200 judging whether the current frame picture belongs to a dynamic picture according to the first picture information and the second picture information includes: comparing the first average brightness value with the second average brightness value, and the second average brightness value If it is not equal to the first average brightness value, then the current frame picture is a dynamic picture; if the second average brightness value is equal to the first average brightness value, then the current frame picture is a static picture.
  • the current frame picture compares the average pixel brightness value (APL) of the current frame picture with the average pixel brightness value (APL) of a frame picture before the current frame picture, if the second average brightness value is not equal to the first average brightness value, the current frame picture is a dynamic picture; if the second average brightness value is equal to the first average brightness value, the current frame picture is a static picture.
  • APL average pixel brightness value
  • the second average brightness value is the average brightness value of the previous frame of the previous frame
  • the second average brightness value is the average brightness value of the previous frame of the previous frame of the previous frame
  • step S300 according to the picture information of the current frame picture in the dynamic picture, judging whether the current frame picture is an overloaded picture, and obtaining the pixel information of the overloaded sub-pixel in the picture includes: Step S310, Step S210.
  • Step S310 Calculate the reload weight per pixel of the current frame, and the calculation formula of the reload weight is expressed as:
  • W N is the overload weight
  • i represents the i-th row pixel
  • i+1 represents the i+1-th row pixel
  • j represents the j-th column pixel
  • j+k represents the j+k-th column pixel
  • R represents the red sub-pixel
  • G is the gray scale value of the green sub-pixel
  • B is the gray scale value of the blue sub-pixel
  • N is the range of the pixel column for calculating the overload weight
  • P is the gray scale difference
  • K is a positive integer
  • 3 *NP stands for overload threshold.
  • Step S320 Comparing the reload weight of each pixel with the reload threshold, if the reload weight of the pixel is greater than the reload threshold, then the pixel is an overloaded pixel; if the reload weight of the pixel is less than or equal to the reload threshold, then the pixel is Non-reloaded pixels, obtain the pixel information of reloaded sub-pixels in reloaded pixels.
  • the reload weight of each pixel is calculated according to the calculation formula of the reload weight W N , and each pixel includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. If the overload weight W N is less than or equal to the overload threshold 3*NP, the pixel is a non-overload pixel; if the overload weight W N is greater than the overload threshold 3*NP, the pixel is an overload pixel, and the overload pixel The included sub-pixels are reloaded sub-pixels.
  • the overload threshold is related to the values of P and N.
  • the filling difference of each sub-pixel in FIG. 4 and FIG. 5 represents the gray scale difference of the sub-pixel.
  • the gray scale difference between the reloaded sub-pixel 22 and its adjacent sub-pixel 21 in FIG. 4 is very large; after adopting the driving method of the display device of the embodiment of the present application , the gray scale difference between the overloaded sub-pixel 22 and its adjacent sub-pixel 21 in FIG. 5 becomes smaller.
  • the overloaded area 32 is a partial area of the entire image area 31 of the display device.
  • the driving method of the display device according to the embodiment of the present application can be aimed at The optimal driving can be performed on the region, or the optimized driving can be performed on the local image area of the display device.
  • the P-value is greater than or equal to (255*2)/3.
  • P represents the gray scale difference
  • the lowest gray scale is 0 gray scale
  • the highest gray scale is 255
  • the value of P is between 0 and 255.
  • the value of N is greater than or equal to 30, and the value of N is less than or equal to 120.
  • the value of P is greater than or equal to (255*2)/3
  • the value of N is greater than or equal to 30, and the value of N is less than or equal to 120.
  • the displayed content in FIG. 7 includes a non-text area 41 and a text area 42.
  • the gray-scale energy-saving drive is performed on the edges of text and other images, it will cause text and other images
  • the edge distortion of the text such as reducing the contrast of the text edge, making the text look blurred, so in the embodiment of the application, even if the text and other image edges include overloaded sub-pixels, there is no need to perform text and other images on the edge Gray-scale energy-saving drive.
  • the picture of one frame before the picture of the current frame is the picture of one frame before the picture of m frames, m is greater than 1, and m is less than 5.
  • the second picture information is picture information of a picture frame before m frames
  • m is a positive integer
  • m is greater than 1
  • m is less than 5.
  • the pixel information of the reloaded sub-pixel may include position information and grayscale information of the reloaded sub-pixel.
  • the heavy-duty sub-pixel is driven by the method of gray-scale energy-saving driving, and by reducing the heavy-duty sub-pixel and the same column
  • the difference between the gray scale values of adjacent sub-pixels on the top reduces the voltage difference between the high gray scale drive and the low gray scale drive of the data line, thereby improving the high load state of the driver chip under heavy load screens and avoiding excessive temperature
  • the damage of the driving chip can reduce the consumption of the driving current and reduce the power consumption of the display device.
  • the embodiment of the present application further provides a display device 100, and the display device 100 includes a driving chip 103, and the driving chip 103 executes the driving method of the display device according to any one of the above-mentioned embodiments.
  • FIG. 8 is a schematic diagram of a display device provided by an embodiment of the present application.
  • the display device 100 includes a display area 101 and a non-display area 102.
  • the driver chip 103 can be directly welded or bound to the non-display area 102 of the display device 100.
  • the driver chip 103 can also be electrically connected to the display area 101 of the display device 100 through other components and structures.
  • the display device 100 is a TV, and the driver chip 103 can be arranged on an external circuit board, which is not limited here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computing Systems (AREA)
  • Databases & Information Systems (AREA)
  • Evolutionary Computation (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种显示装置（100）的驱动方法及显示装置（100），包括驱动步骤：步骤S100：获取第一画面信息和第二画面信息；步骤S200：判断当前帧画面是否属于动态画面；步骤S300：根据动态画面中的当前帧画面的画面信息，判断当前帧画面是否为重载画面；步骤S400：根据重载画面的画面信息对相应的重载子像素执行灰阶节能驱动。

Description

显示装置的驱动方法及显示装置 技术领域
本申请涉及显示领域，具体涉及一种显示装置的驱动方法及显示装置。
背景技术
随着显示技术的发展，人们对显示画面高分辨率和高频率要求越来越高，这些都将增加驱动芯片的负载，尤其有显示重载画面时，同一条数据线驱动相邻子像素时，数据线驱动同一列上不同子像素在高亮驱动和低暗驱动之间来回频繁地切换。
然而，数据线驱动同一列上不同子像素在高亮驱动和低暗驱动之间来回频繁地切换时，驱动芯片处于高负载状态下，不仅会产生过高的温度而引起驱动芯片的损坏，同时也会造成电流的大量消耗，提高显示装置的功耗。
技术问题
本申请实施例提供一种显示装置的驱动方法及显示装置，可以解决重载画面下驱动芯片处于高负载状态下，产生过高的温度而引起驱动芯片的损坏的问题，可以解决电流的消耗量大，显示装置的功耗高的问题。
技术解决方案
本申请实施例提供了一种显示装置的驱动方法，包括如下驱动步骤：
步骤S100：获取第一画面信息和第二画面信息，所述第一画面信息为当前帧画面的画面信息，所述第二画面信息为当前帧画面之前的一帧画面的画面信息；
步骤S200：根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面；
步骤S300：根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息；
步骤S400：根据所述重载画面的画面信息对相应的所述重载子像素执行灰阶节能驱动。
可选的，在本申请的一些实施例中，所述灰阶节能驱动包括：缩减重载子像素与同一列上相邻子像素的灰阶值之差。
可选的，在本申请的一些实施例中，所述缩减重载子像素与同一列上相邻子像素的灰阶值之差的方法用以下计算公式表示：
a+2b＝1，a>0，b>0，a≥b
其中，a表示所述重载子像素的灰阶变化权重，b表示上一行的相邻子像素和下一行的相邻子像素的灰阶变化权重。
可选的，在本申请的一些实施例中，在所述步骤S100中，所述第一画面信息包括第一平均亮度值，所述第一平均亮度值为当前帧画面的平均亮度值；
所述第二画面信息包括第二平均亮度值，所述第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值。
可选的，在本申请的一些实施例中，在所述步骤S200中，所述根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面包括：
比较第一平均亮度值和第二平均亮度值，所述第二平均亮度值不等于所述第一平均亮度值，则所述当前帧画面为所述动态画面；所述第二平均亮度值等于所述第一平均亮度值，则所述当前帧画面为静态画面。
可选的，在本申请的一些实施例中，所述步骤S300中，所述根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息包括：
步骤S310：计算所述当前帧画面的每像素的重载权重，所述重载权重的计算公式表示为：
Figure PCTCN2021123504-appb-000001
W N>3*NP，P∈(0,255)，N>30
其中，W N为重载权重，i表示第i行像素，i+1表示第i+1行像素，j表示第j列像素，j+k表示第j+k列像素；R表示红色子像素的灰阶值，G表示绿色子像素的灰阶值，B表示蓝色子像素的灰阶值，N表示计算所述重载权的像素 列的范围，P表示灰阶差，K为正整数，3*NP表示重载阈值；
步骤S320：比较每个像素的所述重载权重与重载阈值的大小，所述像素的所述重载权重大于所述重载阈值，则所述像素为重载像素；所述像素的所述重载权重小于或等于重载阈值，则所述像素为非重载像素，获取所述重载像素中的所述重载子像素的像素信息。
可选的，在本申请的一些实施例中，P值大于或等于(255*2)/3。
可选的，在本申请的一些实施例中，N值大于或等于30，且N值小于或等于120。
可选的，在本申请的一些实施例中，所述当前帧画面之前的一帧画面为m帧之前的一帧的画面，m大于1，且m小于5。
相应的，本申请实施例还提供了一种显示装置，其中，包括驱动芯片，所述驱动芯片执行显示装置的驱动方法，所述显示装置的驱动方法包括如下驱动步骤：
步骤S100：获取第一画面信息和第二画面信息，所述第一画面信息为当前帧画面的画面信息，所述第二画面信息为当前帧画面之前的一帧画面的画面信息；
步骤S200：根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面；
步骤S300：根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息；
步骤S400：根据所述重载画面的画面信息对相应的所述重载子像素执行灰阶节能驱动。
可选的，在本申请的一些实施例中，所述灰阶节能驱动包括：缩减重载子像素与同一列上相邻子像素的灰阶值之差。
可选的，在本申请的一些实施例中，所述缩减重载子像素与同一列上相邻子像素的灰阶值之差的方法用以下计算公式表示：
a+2b＝1，a>0，b>0，a≥b
其中，a表示所述重载子像素的灰阶变化权重，b表示上一行的相邻子像素和下一行的相邻子像素的灰阶变化权重。
可选的，在本申请的一些实施例中，在所述步骤S100中，所述第一画面信息包括第一平均亮度值，所述第一平均亮度值为当前帧画面的平均亮度值；
所述第二画面信息包括第二平均亮度值，所述第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值。
可选的，在本申请的一些实施例中，在所述步骤S200中，所述根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面包括：
比较第一平均亮度值和第二平均亮度值，所述第二平均亮度值不等于所述第一平均亮度值，则所述当前帧画面为所述动态画面；所述第二平均亮度值等于所述第一平均亮度值，则所述当前帧画面为静态画面。
可选的，在本申请的一些实施例中，所述步骤S300中，所述根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息包括：
步骤S310：计算所述当前帧画面的每像素的重载权重，所述重载权重的计算公式表示为：
Figure PCTCN2021123504-appb-000002
W N>3*NP，P∈(0,255)，N>30
其中，W N为重载权重，i表示第i行像素，i+1表示第i+1行像素，j表示第j列像素，j+k表示第j+k列像素；R表示红色子像素的灰阶值，G表示绿色子像素的灰阶值，B表示蓝色子像素的灰阶值，N表示计算所述重载权的像素列的范围，P表示灰阶差，K为正整数，3*NP表示重载阈值；
步骤S320：比较每个像素的所述重载权重与重载阈值的大小，所述像素的所述重载权重大于所述重载阈值，则所述像素为重载像素；所述像素的所述重载权重小于或等于重载阈值，则所述像素为非重载像素，获取所述重载像素中的所述重载子像素的像素信息。
可选的，在本申请的一些实施例中，P值大于或等于(255*2)/3。
可选的，在本申请的一些实施例中，N值大于或等于30，且N值小于或 等于120。
可选的，在本申请的一些实施例中，所述当前帧画面之前的一帧画面为m帧之前的一帧的画面，m大于1，且m小于5。
有益效果
本申请实施例中，本申请实施例提供一种显示装置的驱动方法及显示装置，通过判断重载画面，并获取重载画面的中载子像素的像素信息，针对重载子像素采用灰阶节能驱动的方法驱动，通过缩减重载子像素与同一列上相邻子像素的灰阶值之差，减小数据线在高灰阶驱动和低灰阶驱动的电压差，从而改善驱动芯片在重载画面下的高负载状态，避免产生过高的温度而引起驱动芯片的损坏，可以减小驱动电流的消耗量，降低显示装置的功耗。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请一实施例提供的一种显示装置的驱动方法的驱动步骤的示意图；
图2是本申请一实施例提供的一种显示装置的像素排布的示意图；
图3是本申请一实施例提供的重载子像素改善过程的示意图；
图4是本申请一实施例提供的一种显示装置的重载画面的示意图；
图5是本申请一实施例提供的一种显示装置的重载画面改善后的示意图；
图6是本申请一实施例提供的一种显示装置的局部重载画面的示意图；
图7是本申请一实施例提供的一种显示装置的显示文字图像的示意图；
图8是本申请一实施例提供的显示装置的示意图。
本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳 动前提下所获得的所有其他实施例，都属于本申请保护的范围。此外，应当理解的是，此处所描述的具体实施方式仅用于说明和解释本申请，并不用于限制本申请。在本申请中，在未作相反说明的情况下，使用的方位词如“上”和“下”通常是指装置实际使用或工作状态下的上和下，具体为附图中的图面方向；而“内”和“外”则是针对装置的轮廓而言的。
本申请实施例提供了一种显示装置的驱动方法，包括如下驱动步骤：步骤S100：获取第一画面信息和第二画面信息，第一画面信息为当前帧画面的画面信息，第二画面信息为当前帧画面之前的一帧画面的画面信息；步骤S200：根据第一画面信息和第二画面信息，判断当前帧画面是否属于动态画面；步骤S300：根据动态画面中的当前帧画面的画面信息，判断当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息；步骤S400：根据重载画面的画面信息对相应的重载子像素执行灰阶节能驱动。
本申请实施例提供了一种显示装置的驱动方法及显示装置。以下分别进行详细说明。需说明的是，以下实施例的描述顺序不作为对实施例优选顺序的限定。
实施例一、
请参阅图1、图2、图3、图4、图5、图6、图7，图1为本申请实施例提供的一种显示装置的驱动方法的驱动步骤的示意图，图2是本申请实施例提供的一种显示装置的像素排布的示意图，图3是本申请实施例提供的重载子像素改善过程的示意图，图4是本申请实施例提供的一种显示装置的重载画面的示意图，图5是本申请实施例提供的一种显示装置的重载画面改善后的示意图，图6是本申请实施例提供的一种显示装置的局部重载画面的示意图，图7是本申请实施例提供的一种显示装置的显示文字图像的示意图。
请参阅图1，本申请实施例提供了一种显示装置的驱动方法，包括如下驱动步骤：步骤S100、步骤S200、步骤S300、步骤S400。
步骤S100：获取第一画面信息和第二画面信息，第一画面信息为当前帧画面的画面信息，第二画面信息为当前帧画面之前的一帧画面的画面信息。
步骤S200：根据第一画面信息和第二画面信息，判断当前帧画面是否属 于动态画面。
步骤S300：根据动态画面中的当前帧画面的画面信息，判断当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息。
步骤S400：根据重载画面的画面信息对相应的重载子像素执行灰阶节能驱动。
具体的，请参阅图2，举例示意了1G1D(1Gate 1Data)像素驱动架构，显示装置包括多列第一子像素11、多列第二子像素12和多列第三子像素13，每一列第一子像素11通过对应的数据线14驱动，每一列第二子像素12通过对应的数据线14驱动，每一列第三子像素13通过对应的数据线14驱动，第一子像素11可以为红色子像素，第二子像素12可以为绿色子像素，第三子像素13可以为蓝色子像素。
具体的，静态画面是指显示的画面在一段时间内不发生变化的显示内容，动态画面是指显示的画面在一段时间内不停发生变化的显示内容。
具体的，第二画面信息为当前帧画面之前的一帧画面的画面信息。其中，第二画面可以为上一帧画面，第二画面可以为上一帧画面的上一帧画面，以此类推，在此不再全部列举。
具体的，请参阅图4，图4中同一列子像素上包括交替的重载子像素22和相邻子像素21，重载子像素22和其相邻子像素21的灰阶差异非常大或亮度差异非常大，数据线14驱动同一列上的重载子像素22和相邻子像素21时，数据线需要在高亮驱动和低暗驱动之间来回频繁地切换，例如重载子像素的灰阶为255，相邻子像素21的灰阶为0，显示装置逐行驱动时，数据线14需要在255灰阶驱动和0灰阶驱动之间来回频繁地切换，即一帧的画面驱动时同一数据线的电压变化范围非常大，此时，驱动芯片处于高负载状态下，不仅会产生过高的温度而引起驱动芯片的损坏，同时也会造成电流的大量消耗，提高显示装置的功耗。
在一些实施例中，灰阶节能驱动包括：缩减重载子像素与同一列上相邻子像素的灰阶值之差。
具体的，请参阅图3，图3中子像素的填充程度表示灰阶差异，如图3中灰阶节能驱动前的状态601所示，第四子像素61、第五子像素62和第六子像 素63按列依次排列，第四子像素61、第五子像素62和第六子像素63通过同一数据线驱动，第五子像素62为重载子像素，第四子像素61为第五子像素62的上一行相邻子像素，第六子像素63为第五子像素62的下一行相邻子像素。
具体的，请参阅图3，如图中灰阶节能驱动后的状态602所示，灰阶节能驱动包括缩减重载子像素22与同一列上相邻子像素的灰阶值之差，同时保持重载子像素22与同一列上相邻子像素的整体亮度不变，即缩减第五子像素62(第五子像素62为重载子像素)与第六子像素63、第四子像素61的灰阶差，同时保持第四子像素61、第五子像素62和第六子像素63的整体亮度不变。
在一些实施例中，缩减重载子像素与同一列上相邻子像素的灰阶值之差的方法用以下计算公式表示：
a+2b＝1，a>0，b>0，a≥b
其中，a表示重载子像素的灰阶变化权重，b表示上一行的相邻子像素和下一行的相邻子像素的灰阶变化权重。
具体的，请参阅图3，a表示重载子像素22(第五子像素62为重载子像素)的灰阶变化权重，b表示上一行相邻子像素(第四子像素61)和下一行相邻子像素(第六子像素63)的灰阶变化权重。
具体的，a+2b＝1，使得保持了重载子像素22与同一列上相邻子像素的整体亮度在灰阶节能驱动前后不变，即同时保持第四子像素61、第五子像素62和第六子像素63的整体亮度在灰阶节能驱动前后不变。
在一些实施例中，在步骤S100中，第一画面信息包括第一平均亮度值，第一平均亮度值为当前帧画面的平均亮度值；第二画面信息包括第二平均亮度值，第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值。
具体的，第一平均亮度值是指当前帧画面的平均亮度值，即当前帧画面的平均像素亮度值(APL)。第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值，即当前帧画面之前的一帧画面的平均像素亮度值(APL)。
在一些实施例中，在步骤S200中，根据第一画面信息和第二画面信息，判断当前帧画面是否属于动态画面包括：比较第一平均亮度值和第二平均亮度值，第二平均亮度值不等于第一平均亮度值，则当前帧画面为动态画面；第二 平均亮度值等于第一平均亮度值，则当前帧画面为静态画面。
具体，比较当前帧画面的平均像素亮度值(APL)与当前帧画面之前的一帧画面的平均像素亮度值(APL)，如果第二平均亮度值不等于第一平均亮度值，则当前帧画面为动态画面；如果第二平均亮度值等于第一平均亮度值，则当前帧画面为静态画面。
具体的，例如第二平均亮度值为上一帧画面的上一帧画面的平均亮度值，例如第二平均亮度值为上一帧画面的上一帧画面的上一帧画面的平均亮度值，以此类推，在此不再全部列举。
在一些实施例中，步骤S300中，根据动态画面中的当前帧画面的画面信息，判断当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息包括：步骤S310、步骤S210。
步骤S310：计算当前帧画面的每像素的重载权重，重载权重的计算公式表示为：
Figure PCTCN2021123504-appb-000003
W N>3*NP，P∈(0,255)，N>30
其中，W N为重载权重，i表示第i行像素，i+1表示第i+1行像素，j表示第j列像素，j+k表示第j+k列像素；R表示红色子像素的灰阶值，G表示绿色子像素的灰阶值，B表示蓝色子像素的灰阶值，N表示计算重载权的像素列的范围，P表示灰阶差，K为正整数，3*NP表示重载阈值。
步骤S320：比较每个像素的重载权重与重载阈值的大小，像素的重载权重大于重载阈值，则像素为重载像素；像素的重载权重小于或等于重载阈值，则像素为非重载像素，获取重载像素中的重载子像素的像素信息。
具体的，按照重载权重W N的计算公式计算每一像素的重载权重，每一像素包括红色子像素、绿色子像素、蓝色子像素。如果重载权重W N小于或等于重载阈值3*NP，则该像素为非重载像素；如果重载权重W N大于重载阈值3*NP，则该像素为重载像素，重载像素包括的子像素为重载子像素。
具体的，重载阈值的大小与P、N的取值有关联性。
具体的，请参阅图4、图5，图4和图5中各个子像素的填充差异表示子像素的灰阶差异。在采用本申请实施例的显示装置的驱动方法之前，图4中重载子像素22与其相邻子像素21之间的灰阶差异非常大；在采用本申请实施例的显示装置的驱动方法之后，图5中重载子像素22与其相邻子像素21之间的灰阶差异变小。
具体的，请参阅图6，在显示装置显示的图像中，重载区域32为显示装置全部图像区域31的部分区域，本申请实施例的显示装置的驱动方法，既可以针对显示装置的全部图像区域进行优化驱动，也可以针对显示装置的局部图像区域进行优化驱动。
在一些实施例中，P值大于或等于(255*2)/3。
具体的，P表示灰阶差异，最低灰阶为0灰阶，最高灰阶为255，因此P的取值在0至255之间。
在一些实施例中，N值大于或等于30，且N值小于或等于120。
具体的，在本申请实施例的优选实施例中，P值大于或等于(255*2)/3，N值大于或等于30，且N值小于或等于120。
具体的，请参阅图7，图7中显示内容包括非文字区域41和文字区域42，当显示的画面包含文字时，如果对文字等图像的边缘进行灰阶节能驱动，则会导致文字等图像的边缘失真，例如降低了文字边缘的对比度，使得文字看起来变得模糊，因此在本申请实施例中，即便文字等图像的边缘包括重载子像素，也不需要对文字等图像的边缘进行灰阶节能驱动。通过取值N值大于或等于30，且N值小于或等于120，使得计算重载像素的重载权重W N时，会计算考虑超过30列的最近像素，文字等图像的边缘的重载权重W N会被平均稀释或平均减小，图7中的文字边缘可以被剔除在重载区域内，文字边缘的像素可以被剔除在重载像素内，从而避免灰阶节能驱动使得文字等图像的边缘失真或模糊。
在一些实施例中，所述当前帧画面之前的一帧画面为m帧之前的一帧的画面，m大于1，且m小于5。
具体的，第二画面信息为m帧之前的一帧画面的画面信息，m为正整数， m大于1，且m小于5。具体的，在本申请实施例中，优选m大于1，m小于5，可以避免静态画面和动态画面的判断失误，选取适当的m值，可以准确的判断当前帧画面是否为动态画面。
需要说明的是，重载子像素的像素信息可以包括重载子像素的位置信息和灰阶信息。
在本申请实施例中，通过判断重载画面，并获取重载画面的中载子像素的像素信息，针对重载子像素采用灰阶节能驱动的方法驱动，通过缩减重载子像素与同一列上相邻子像素的灰阶值之差，减小数据线在高灰阶驱动和低灰阶驱动的电压差，从而改善驱动芯片在重载画面下的高负载状态，避免产生过高的温度而引起驱动芯片的损坏，可以减小驱动电流的消耗量，降低显示装置的功耗。
实施例二、
本申请实施例还提供了一种显示装置100，显示装置100包括驱动芯片103，驱动芯片103执行如上述实施例中的任一项的显示装置的驱动方法。
请参阅图8，图8为本申请实施例提供的显示装置的示意图，显示装置100包括显示区101和非显示区102，驱动芯片103可以直接焊接或绑定在显示装置100的非显示区102，驱动芯片103也可以通过其他部件和结构与显示装置100的显示区101电性连接，例如显示装置100为电视机，驱动芯片103可以设置在外接入的电路板上，在此不做限定。
以上对本申请实施例所提供的一种显示装置的驱动方法及显示装置进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的方法及其核心思想；同时，对于本领域的技术人员，依据本申请的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本申请的限制。

Claims (18)

  1. 一种显示装置的驱动方法，其中，包括如下驱动步骤：
    步骤S100：获取第一画面信息和第二画面信息，所述第一画面信息为当前帧画面的画面信息，所述第二画面信息为当前帧画面之前的一帧画面的画面信息；
    步骤S200：根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面；
    步骤S300：根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息；
    步骤S400：根据所述重载画面的画面信息对相应的所述重载子像素执行灰阶节能驱动。
  2. 如权利要求1所述的显示装置的驱动方法，其中，所述灰阶节能驱动包括：缩减重载子像素与同一列上相邻子像素的灰阶值之差。
  3. 如权利要求2所述的显示装置的驱动方法，其中，所述缩减重载子像素与同一列上相邻子像素的灰阶值之差的方法用以下计算公式表示：
    a+2b＝1，a>0，b>0，a≥b
    其中，a表示所述重载子像素的灰阶变化权重，b表示上一行的相邻子像素和下一行的相邻子像素的灰阶变化权重。
  4. 如权利要求1所述的显示装置的驱动方法，其中，在所述步骤S100中，所述第一画面信息包括第一平均亮度值，所述第一平均亮度值为当前帧画面的平均亮度值；
    所述第二画面信息包括第二平均亮度值，所述第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值。
  5. 如权利要求4所述的显示装置的驱动方法，其中，在所述步骤S200中，所述根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面包括：
    比较第一平均亮度值和第二平均亮度值，所述第二平均亮度值不等于所述第一平均亮度值，则所述当前帧画面为所述动态画面；所述第二平均亮度值等于所述第一平均亮度值，则所述当前帧画面为静态画面。
  6. 如权利要求1所述的显示装置的驱动方法，其中，所述步骤S300中，所述根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息包括：
    步骤S310：计算所述当前帧画面的每像素的重载权重，所述重载权重的计算公式表示为：
    Figure PCTCN2021123504-appb-100001
    W N>3*NP，P∈(0,255)，N>30
    其中，W N为重载权重，i表示第i行像素，i+1表示第i+1行像素，j表示第j列像素，j+k表示第j+k列像素；R表示红色子像素的灰阶值，G表示绿色子像素的灰阶值，B表示蓝色子像素的灰阶值，N表示计算所述重载权的像素列的范围，P表示灰阶差，K为正整数，3*NP表示重载阈值；
    步骤S320：比较每个像素的所述重载权重与重载阈值的大小，所述像素的所述重载权重大于所述重载阈值，则所述像素为重载像素；所述像素的所述重载权重小于或等于重载阈值，则所述像素为非重载像素，获取所述重载像素中的所述重载子像素的像素信息。
  7. 如权利要求6所述的显示装置的驱动方法，其中，P值大于或等于(255*2)/3。
  8. 如权利要求6所述的显示装置的驱动方法，其中，N值大于或等于30，且N值小于或等于120。
  9. 如权利要求1所述的显示装置的驱动方法，其中，所述当前帧画面之前的一帧画面为m帧之前的一帧的画面，m大于1，且m小于5。
  10. 一种显示装置，其中，包括驱动芯片，所述驱动芯片执行显示装置的驱动方法，所述显示装置的驱动方法包括如下驱动步骤：
    步骤S100：获取第一画面信息和第二画面信息，所述第一画面信息为当前帧画面的画面信息，所述第二画面信息为当前帧画面之前的一帧画面的画面信息；
    步骤S200：根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面；
    步骤S300：根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息；
    步骤S400：根据所述重载画面的画面信息对相应的所述重载子像素执行灰阶节能驱动。
  11. 如权利要求10所述的显示装置，其中，所述灰阶节能驱动包括：缩减重载子像素与同一列上相邻子像素的灰阶值之差。
  12. 如权利要求11所述的显示装置，其中，所述缩减重载子像素与同一列上相邻子像素的灰阶值之差的方法用以下计算公式表示：
    a+2b＝1，a>0，b>0，a≥b
    其中，a表示所述重载子像素的灰阶变化权重，b表示上一行的相邻子像素和下一行的相邻子像素的灰阶变化权重。
  13. 如权利要求10所述的显示装置，其中，在所述步骤S100中，所述第一画面信息包括第一平均亮度值，所述第一平均亮度值为当前帧画面的平均亮度值；
    所述第二画面信息包括第二平均亮度值，所述第二平均亮度值为当前帧画面之前的一帧画面的平均亮度值。
  14. 如权利要求13所述的显示装置，其中，在所述步骤S200中，所述根据所述第一画面信息和第二画面信息，判断所述当前帧画面是否属于动态画面包括：
    比较第一平均亮度值和第二平均亮度值，所述第二平均亮度值不等于所述第一平均亮度值，则所述当前帧画面为所述动态画面；所述第二平均亮度值等于所述第一平均亮度值，则所述当前帧画面为静态画面。
  15. 如权利要求10所述的显示装置，其中，所述步骤S300中，所述根据动态画面中的所述当前帧画面的画面信息，判断所述当前帧画面是否为重载画面，并获取该画面中的重载子像素的像素信息包括：
    步骤S310：计算所述当前帧画面的每像素的重载权重，所述重载权重的计算公式表示为：
    Figure PCTCN2021123504-appb-100002
    W N>3*NP，P∈(0,255)，N>30
    其中，W N为重载权重，i表示第i行像素，i+1表示第i+1行像素，j表示第j列像素，j+k表示第j+k列像素；R表示红色子像素的灰阶值，G表示绿色子像素的灰阶值，B表示蓝色子像素的灰阶值，N表示计算所述重载权的像素列的范围，P表示灰阶差，K为正整数，3*NP表示重载阈值；
    步骤S320：比较每个像素的所述重载权重与重载阈值的大小，所述像素的所述重载权重大于所述重载阈值，则所述像素为重载像素；所述像素的所述重载权重小于或等于重载阈值，则所述像素为非重载像素，获取所述重载像素中的所述重载子像素的像素信息。
  16. 如权利要求15所述的显示装置，其中，P值大于或等于(255*2)/3。
  17. 如权利要求15所述的显示装置，其中，N值大于或等于30，且N值小于或等于120。
  18. 如权利要求10所述的显示装置，其中，所述当前帧画面之前的一帧画面为m帧之前的一帧的画面，m大于1，且m小于5。
PCT/CN2021/123504 2021-09-27 2021-10-13 显示装置的驱动方法及显示装置 WO2023044989A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/611,538 US20240046897A1 (en) 2021-09-27 2021-10-13 Driving method of display device and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202111137627.8A CN113870761B (zh) 2021-09-27 2021-09-27 显示装置的驱动方法及显示装置
CN202111137627.8 2021-09-27

Publications (1)

Publication Number Publication Date
WO2023044989A1 true WO2023044989A1 (zh) 2023-03-30

Family

ID=78991363

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/123504 WO2023044989A1 (zh) 2021-09-27 2021-10-13 显示装置的驱动方法及显示装置

Country Status (3)

Country Link
US (1) US20240046897A1 (zh)
CN (1) CN113870761B (zh)
WO (1) WO2023044989A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115116407B (zh) * 2022-05-13 2023-06-16 惠科股份有限公司 显示装置的驱动方法和显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031431A (ja) * 2014-07-28 2016-03-07 株式会社Ｊｏｌｅｄ 画像表示装置および画像表示装置の駆動方法。
CN107170403A (zh) * 2017-06-16 2017-09-15 北京小米移动软件有限公司 画面帧显示方法及装置
CN109144200A (zh) * 2018-08-02 2019-01-04 深圳市华星光电技术有限公司 画面显示方法、计算机存储介质及显示装置
CN110264969A (zh) * 2019-06-03 2019-09-20 深圳市华星光电技术有限公司 显示驱动方法及显示装置
CN113380209A (zh) * 2021-06-08 2021-09-10 惠州华星光电显示有限公司 显示装置及其显示方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4423842B2 (ja) * 2002-09-03 2010-03-03 セイコーエプソン株式会社 電気光学パネル及び電気光学装置の駆動方法
TWI311304B (en) * 2005-03-30 2009-06-21 Chi Mei Optoelectronics Corporatio Displaying method for an image display device and the image display device
KR101255701B1 (ko) * 2006-06-27 2013-04-17 엘지디스플레이 주식회사 액정표시장치의 구동장치 및 그의 구동방법
KR100869800B1 (ko) * 2007-04-04 2008-11-21 삼성에스디아이 주식회사 표시 장치 및 그 구동방법
CN101609653B (zh) * 2008-06-16 2013-05-08 奇美电子股份有限公司 液晶显示器与其驱动方法
JP5089797B2 (ja) * 2009-06-29 2012-12-05 キヤノン株式会社 画像処理装置及びその制御方法
JP2013210564A (ja) * 2012-03-30 2013-10-10 Sharp Corp 表示装置、ホワイトバランス調整方法、プログラム、および、記録媒体
CN102819157B (zh) * 2012-08-06 2016-01-13 深圳市华星光电技术有限公司 液晶显示面板及显示装置
TWI522992B (zh) * 2013-10-30 2016-02-21 友達光電股份有限公司 彩色顯示面板之畫素陣列結構
CN104539917A (zh) * 2015-02-03 2015-04-22 成都金本华科技股份有限公司 一种提高视频图像清晰度的方法
CN106782421B (zh) * 2017-03-10 2019-08-13 深圳市华星光电技术有限公司 像素驱动方法及装置
CN106847219B (zh) * 2017-03-10 2018-03-23 惠科股份有限公司 一种显示方法及显示装置
CN107831614A (zh) * 2017-11-07 2018-03-23 深圳市华星光电半导体显示技术有限公司 像素驱动架构及显示装置
KR20190067286A (ko) * 2017-12-06 2019-06-17 삼성디스플레이 주식회사 휘도 제어 장치, 이를 포함하는 표시 장치, 및 표시 장치의 구동 방법
CN109272951A (zh) * 2018-10-18 2019-01-25 深圳市华星光电技术有限公司 像素结构及液晶显示面板
CN109360534B (zh) * 2018-11-30 2020-04-10 深圳市华星光电半导体显示技术有限公司 像素驱动方法
CN109658877B (zh) * 2019-02-28 2020-07-14 厦门天马微电子有限公司 一种显示装置及其驱动方法以及电子设备
CN111862877B (zh) * 2020-07-28 2021-06-04 惠科股份有限公司 广视角的调整方法、显示面板和计算机可读存储介质
CN112885277B (zh) * 2021-01-14 2022-04-05 合肥维信诺科技有限公司 显示面板的显示方法、显示模组及显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016031431A (ja) * 2014-07-28 2016-03-07 株式会社Ｊｏｌｅｄ 画像表示装置および画像表示装置の駆動方法。
CN107170403A (zh) * 2017-06-16 2017-09-15 北京小米移动软件有限公司 画面帧显示方法及装置
CN109144200A (zh) * 2018-08-02 2019-01-04 深圳市华星光电技术有限公司 画面显示方法、计算机存储介质及显示装置
CN110264969A (zh) * 2019-06-03 2019-09-20 深圳市华星光电技术有限公司 显示驱动方法及显示装置
CN113380209A (zh) * 2021-06-08 2021-09-10 惠州华星光电显示有限公司 显示装置及其显示方法

Also Published As

Publication number Publication date
US20240046897A1 (en) 2024-02-08
CN113870761B (zh) 2023-05-30
CN113870761A (zh) 2021-12-31

Similar Documents

Publication Publication Date Title
CN112767867B (zh) 显示面板及其亮度补偿方法、装置
RU2660628C1 (ru) Жидкокристаллическая панель и способ управления такой панелью
US8743152B2 (en) Display apparatus, method of driving display apparatus, drive-use integrated circuit, driving method employed by drive-use integrated circuit, and signal processing method
WO2016197450A1 (zh) 液晶面板及其驱动方法
KR102350818B1 (ko) 화상에 있어서의 고주파 성분을 검출하는 방법 및 장치
RU2654349C1 (ru) Жидкокристаллическая панель и способ управления такой панелью
US9734773B2 (en) Display improvement method and apparatus for liquid crystal display panel
US8063913B2 (en) Method and apparatus for displaying image signal
KR102008073B1 (ko) 액정 패널 및 액정 패널의 픽셀 유닛 설정 방법
WO2018120435A1 (zh) 液晶显示器件及其驱动方法
US20160329014A1 (en) Display device
WO2022033110A1 (zh) 液晶显示器及其驱动补偿方法、驱动补偿装置
CN113990263B (zh) 显示屏的背光处理方法、装置、存储介质及电子设备
CN112927640A (zh) 局部补偿显示画面亮度不均的资料压缩方法及储存装置
TWI672669B (zh) 影像處理方法與裝置
KR102239895B1 (ko) 입력 영상의 업 스케일링을 위한 데이터 변환부와 데이터 변환 방법
WO2023044989A1 (zh) 显示装置的驱动方法及显示装置
US10777152B2 (en) Driving method and driving device for display panel, and display device
WO2020107652A1 (zh) 显示面板驱动方法
TWI715334B (zh) 資料壓縮方法及具有該方法產生的補償值的儲存裝置
US10210826B2 (en) Sub-pixel rendering method for delta RGBW panel and delta RGBW panel with sub-pixel rendering function
TWI547923B (zh) 顯示面板及其驅動方法
CN112951139B (zh) 灰阶调整方法及装置
CN112233028B (zh) 一种屏下摄像头的子像素渲染方法与装置
WO2023130496A1 (zh) 拼接显示器及驱动方法、拼接显示装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 17611538

Country of ref document: US

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

Ref document number: 21958104

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE