WO2019071776A1 - 显示驱动方法、装置及设备 - Google Patents

显示驱动方法、装置及设备 Download PDF

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Publication number
WO2019071776A1
WO2019071776A1 PCT/CN2017/115165 CN2017115165W WO2019071776A1 WO 2019071776 A1 WO2019071776 A1 WO 2019071776A1 CN 2017115165 W CN2017115165 W CN 2017115165W WO 2019071776 A1 WO2019071776 A1 WO 2019071776A1
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Prior art keywords
gray scale
original
hue
data group
scale data
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PCT/CN2017/115165
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English (en)
French (fr)
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单剑锋
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惠科股份有限公司
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Priority to US15/751,545 priority Critical patent/US10706798B2/en
Publication of WO2019071776A1 publication Critical patent/WO2019071776A1/zh

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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
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/026Control of mixing and/or overlay of colours in general
    • 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
    • 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
    • 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
    • G09G3/342Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • 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
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0242Compensation of deficiencies in the appearance of colours

Definitions

  • the present application relates to the field of display technologies, and in particular, to a display driving method, apparatus, and device.
  • the red, green and blue color side view characters are more severe than other color systems, and, due to the gray scale display
  • the fast saturation enhancement of the viewing angle brightness ratio makes the difference between the positive viewing angle brightness and the side viewing angle brightness of the lower gray level larger.
  • a display driving method includes:
  • a gray level of each hue of the first gray level data set is a maximum gray level in the original gray level data set; the second The gray scale of each hue of the gray scale data set is 0 or the minimum gray scale in the original gray scale data set.
  • a display driving device comprising:
  • the original gray-scale obtaining module is configured to obtain an original gray-scale data group of each pixel unit in which the content to be displayed is in a preset display area;
  • An average gray level determining module configured to determine an average gray level of each hue in the preset display area according to the original gray level data group
  • the original light source obtaining module is configured to acquire the original light source intensity of each hue of the content to be displayed in the preset display area;
  • a gray scale group decomposition module configured to decompose the original gray scale data group into a first gray scale according to an original gray scale data group of each of the pixel units, the average gray scale of each hue, and the original light source intensity a data set and a second gray scale data set, and determining a driving light source intensity of each hue in the preset display area; a gray level of each hue of the first gray level data set is in the original gray level data set a maximum gray scale; a gray scale of each hue of the second gray scale data set is 0 or greater than a minimum gray scale in the original gray scale data set.
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the computer program to implement the steps of the display driving method described above.
  • the display driving method, device and device by decomposing the original gray scale data group into the first gray scale data group and the second gray scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combination
  • the gray level of each hue of the first gray scale data set is the maximum gray level in the original gray scale data set
  • the gray scale of each hue of the second gray scale data set is 0 or greater than the The minimum gray level in the original grayscale data set.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, thereby reducing the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit, so that the side view character is presented close to the front view character phase.
  • FIG. 1 is a schematic diagram showing the internal structure of an execution device of a display driving method and apparatus according to an embodiment
  • FIG. 2 is a flow chart of a display driving method according to an embodiment
  • FIG. 3 is a flow chart of a display driving method of another embodiment
  • FIG. 4 is a specific flow chart of a step of the display driving method of FIG. 2 or FIG. 3;
  • FIG. 5 is a structural diagram of a display driving device according to an embodiment
  • FIG. 6 is a structural diagram of a display driving device according to another embodiment
  • Figure 7 is a block diagram showing the structure of a module of the display driving device of Figure 5 or Figure 6.
  • FIG. 1 is a schematic diagram showing the internal structure of an execution device in an embodiment.
  • the execution device may be a terminal that implements a display driving method.
  • the execution device includes a processor, a storage medium, an internal memory, an output device, and an input device connected through a system bus.
  • the storage medium of the execution device stores an operating system and a computer application of the display driving device, and when the computer application of the display driving device is executed by the processor, a display driving method is implemented.
  • the processor is used to provide computational and control capabilities to support the operation of the entire execution device.
  • An internal memory of the execution device provides an environment for display drive operation in the storage medium, the internal memory being storable with computer readable instructions that, when executed by the processor, cause the processor to perform a display drive method .
  • the output device of the execution device may be a display screen, wherein the display screen may be a display device capable of implementing a display driving method such as a cathode ray tube display (CRT), a plasma display (PDP), a liquid crystal display (LCD), etc., preferably the display screen is a liquid crystal display. monitor.
  • the input device of the execution device may be a touch layer covered on the display screen, a button, a trackball or a touchpad disposed on the outer casing of the execution device, or an external keyboard, a touchpad or a mouse.
  • FIG. 1 is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the execution device to which the solution of the present application is applied.
  • the specific execution device may be It includes more or fewer components than those shown in the figures, or some components are combined, or have different component arrangements.
  • the present application provides a display driving method, including:
  • S120 Acquire an original grayscale data group of each pixel unit in which the content to be displayed is in a preset display area.
  • the display is composed of a plurality of RGB sub-pixel units, and each group of RGB sub-pixel units is referred to as a pixel unit, and each pixel unit represents an image signal.
  • the original gray scale data set of each pixel unit includes gray scales of three colors of R, G, and B, as represented by (R n, m_i, j , G n, m_i, j, B n, m_i, j )
  • the display area of the display may be divided into a plurality of display areas, each display area includes at least two pixel units, and the size of the display area may be defined by itself, and may be divided into N (columns) * M (rows) by pixel units on the display.
  • the display driving method can be implemented by sequentially displaying each display area as a preset display area in a preset order.
  • S130 Determine an average gray level of each hue in the preset display area according to the original gray level data group.
  • the average gray level of each hue in the preset display area may be determined according to the original gray scale data group of each pixel unit in the preset display area.
  • the average gray scale of each hue in the preset display area can be obtained by summing the hue of the original gray scale data group of each pixel unit and then dividing by the number of pixel units in the preset display area.
  • the average grayscale group of the preset display area For example, (Ave_R n,m , Ave_G n,m , Ave_B n,m ) can be used to represent the average gray scale group of the display area of the nth column m rows.
  • S140 Acquire an original light source intensity of each hue in the preset display area of the content to be displayed.
  • the data table can be obtained by searching the data table, and the original light source intensity of each hue in the preset display area is searched in the data table, and the original light source intensity of each hue of the content to be displayed in the preset display area is obtained, that is, Displays the original light source intensity group whose content is within the preset display area.
  • the data table can be pre-stored in the memory, and can be directly used when needed; or the data table can be obtained when needed, thereby obtaining the original light source intensity group of the content to be displayed in the preset display area.
  • the (A n, m_R , A n, m_G , A n, m_B ) can be used to obtain the original light source intensity group in the display area of the nth column m row of the content to be displayed.
  • S150 Decompose the original gray scale data group into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity, and determine the preset The intensity of the driving light source for each hue in the display area.
  • the gray scale of each hue of the first gray scale data set is the maximum gray scale in the original gray scale data set; the gray scale of each hue of the second gray scale data set is 0 or greater than the minimum gray scale in the original gray scale data set .
  • the R, G, and the two frames in the preset display area may be adjusted according to the average gray level of each hue of each pixel unit in the preset display area (eg, Ave_R n, m , Ave_G n, m , Ave_B n, m ) B drives the intensity of the light source.
  • the intensity of the original light source of each of the R, G, and B hue in the display region (n, m) is A n, m_R , A n, m_G , A n, m_B will be adjusted to A' n, m_R , A' n, m_G , A' n, m_B .
  • the display driving method is configured to decompose the original gray scale data group into the first gray scale data group and the second gray scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combined, and the first gray scale data group
  • the gray scale of each hue is the maximum gray scale in the original gray scale data set; the gray scale of each hue of the second gray scale data set is 0 or greater than the minimum gray scale in the original gray scale data set.
  • the gray scale data of each hue in the original gray scale data group is displayed according to the data larger than the minimum gray scale in the original gray scale data group or directly not displayed, but in two groups.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, thereby reducing the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit, so that the side view character is presented close to the front view character phase.
  • the method further includes:
  • S160 Acquire an original display duration of the original gray scale data group.
  • S170 Continuously display the first gray scale data group and the second gray scale data group in the original display duration.
  • the gray scale data group of the original frame corresponding to one pixel unit is decomposed into the first gray scale data group of the two frames (the first frame and the second frame) corresponding to the pixel unit and
  • the second gray scale data group sequentially presents a combination of two frames in time, that is, the first gray scale data group and the second gray scale data group are sequentially displayed.
  • the original display duration is divided into two time segments, one of which displays the first grayscale data set and the other of which displays the second grayscale data set.
  • the time lengths of the two time periods are the same, that is, half of the original display duration.
  • the original gray scale data group is decomposed into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity, and
  • the steps of determining the intensity of the driving light source of each hue in the preset display area including:
  • S251 Determine the driving light source intensity of each hue in the preset display area according to the average gray level of each hue.
  • the maximum gray level in the average gray level is determined according to the average gray level in the preset display area, which is the largest average gray level sub-pixel of which R, G, and B are dominant, and the large size in the preset display area is determined.
  • the maximum gray level of a part of the pixel units is the hue of one of the R, G, and B sub-pixels. In this way, the hue corresponding to the maximum gray level among the average gray levels of the respective hue in the preset display area can be determined, and further, the driving light source intensity of each hue in the preset display area is determined.
  • the display area is a combination of red hue.
  • the average gray levels Ave_R n,m , Ave_G n,m , Ave_B n,m of each of the R, G, and B hue are decomposed into two frame gray-scale combinations, which are respectively R1G1B1 combination 1 (first gray-scale data set) and R2G2B2 combination 2 (second gray scale data set).
  • A' n,m_G 2*TG(B)*A n,m_G /(TG(A)+TG(B));
  • the brightness ratio corresponding to the average gray level of each of the R, G, and B hues in the preset display area can be obtained by looking up the table, which are TR(A), TG(B), and TB, respectively.
  • C The brightness ratio corresponding to each color of the first gray scale data group can be obtained by looking up the table, which are TR (A), TG (A), and TB (A), respectively.
  • the brightness ratio is the ratio of the gray level of the corresponding hue to the full gray level. It can be understood that these data tables can be pre-stored in the memory, and the corresponding brightness ratios can be directly obtained when needed; or the data tables can be obtained when needed, thereby obtaining the brightness ratios.
  • S253 Decompose the original gray scale data group into a first gray scale data group and a second gray scale data group according to the original gray scale data group of each pixel unit, the original light source intensity, and the driving light source intensity.
  • the first gray level data group of the first frame corresponding to the pixel unit may be determined.
  • the brightness ratio group includes the brightness ratio of each hue; understandably, the brightness ratio is the ratio of the gray level of the corresponding hue to the full gray level.
  • the gray scales of the respective hue in the first gray scale data group and the second gray scale data group may be determined by looking up the table.
  • the frame corresponding to the pixel unit includes the original frame corresponding to the pixel unit before the decomposition, and the first frame and the second frame corresponding to the pixel unit after the decomposition.
  • the step of decomposing the original gray scale data group into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the original light source intensity, and the driving light source intensity includes:
  • the maximum gray level of each hue of the pixel unit is used as the gray level of each hue of the first gray level data group.
  • the maximum gray level in the original gray-scale data group of the pixel unit R i,j , G i,j ,B i,j is A1
  • the pixel unit is It is decomposed into a combination of two frames (the first frame and the second frame) by a frame (the original frame) , and the gray scales of the respective hues of R i,j , G i,j ,B i,j are decomposed.
  • the first gray scale data set (R1 i, j , G1 i, j , B1 i, j ) and the second gray scale data set ( R2 i, j , G2 i, j , B2 i, j ) respectively.
  • the ratio of the gray scale of each hue of the first gray scale data group to the full gray scale can be determined by the lookup table as TR (A1), TG (A1), and TB (A1), respectively.
  • the original light source intensities A n,m_R , A n,m_G ,A n,m_B and the driving light source intensities A′ n,m_R ,A′ n,m_G ,A are combined with the R, G and B hue of the preset display area.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale brightness ratio TR(R2 i,j ), TG(G2 i,j ), TB(B2 i, j ), so that the gray scale of the hue can be further determined according to the brightness ratio by means of table lookup.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale luminance ratios TR(R2 i,j ), TR(G2 i,j ), TB(B2 i,j ) Calculated as follows:
  • the gray scale of each of the pixel units R' i,j , G' i,j ,B' i,j is changed from 1 frame (original frame) to 2 frames (first frame and second picture)
  • the combination of the boxes corresponds to the first gray scale data set (R'1 i,j , G'1 i,j ,B'1 i,j ) and the second gray scale data set (R'2 i,j , G'2 i, j , B'2 i, j ).
  • the ratio of the gray scales of the gray scales of the first gray scale data group to the full gray scales may be determined by the lookup table as TR (B2), TG (B2), and TB (B2), respectively.
  • the original light source intensities A n,m_R , A n,m_G ,A n,m_B and the driving light source intensities A′ n,m_R ,A′ n,m_G ,A are combined with the R, G and B hue of the preset display area.
  • ' n,m_B according to the principle of conservation of brightness, the brightness ratio TR(R'2 i,j ) and TG(G'2 i,j ) of the gray scale of each hue of the second gray scale data group with respect to the full gray scale can be determined.
  • TB(B'2 i,j ), so that the gray scale of the hue can be further determined according to the brightness ratio by means of table lookup.
  • the gray scale of each hue of the second gray scale data set is relative to the full gray scale luminance ratio TR(R'2 i,j ), TG(G'2 i,j ), TB(B').
  • TR(R'2 i,j ) the full gray scale luminance ratio
  • the second gray scale data group corresponding to the pixel unit (R′2 i, j , G '2 i,j ,B'2 i,j )
  • the ratio of the gray scale of each hue relative to the full gray scale is determined by the above formula. There may be less than 0 or greater than the preset maximum value. Therefore, it must be required.
  • the calculated gray scale of each hue of the second gray scale data set relative to the full gray scale brightness ratio TR(R'2 i,j ), TG(G'2 i,j ), TB(B'2 i,j The value of the judgment is made. If less than 0, the brightness ratio is set to 0, and if it is greater than the preset maximum value Y, the brightness ratio is set to the preset maximum value Y.
  • the method before the step of acquiring the original grayscale data group of each pixel unit in the preset display area, the method further includes:
  • S110 Divide the display area of the display into not less than two display areas, and sequentially use the display area as a preset display area.
  • the display driving can be realized by sequentially displaying each display area as a preset display area in a preset order.
  • the preset order may be an order of sorting first and then sorting the columns, or an order of sorting the columns first and then sorting them. In this way, each display partition of the entire display is displayed and driven, thereby realizing display driving of the entire display.
  • the original gray scale data set is decomposed into the first gray scale data group and the second gray scale data group according to the original gray scale data group of each pixel unit, the average gray scale of each hue, and the original light source intensity. And determining the intensity of the driving light source of each hue in the preset display area, comprising: if the gray levels of the respective hue in the preset display area are the same original gray level data set, the average gray level of each hue is the original The gray scale of each hue of the gray scale data group.
  • the original gray scale data group is decomposed into the first gray scale data group and the second gray scale data group, wherein the gray scale of each hue of the first gray scale data group is The maximum gray scale in the original gray scale data set, the gray scale of each hue of the second gray scale data set is 0 or the next largest gray scale in the original gray scale data set; according to the original light source intensity, the first gray scale data set And a second gray scale data set to determine the intensity of the driving light source of each hue in the preset display area.
  • the group is decomposed into the first gray level data group (R1, G1, B1) and the second gray level data group (R2, G2, B2) of the two frames (the first frame and the second frame) corresponding to the pixel unit.
  • the original gray scale data set is decomposed into two gray scale data sets, and two gray scale data sets are sequentially presented in time. That is, the original display duration of the original frame signal needs to be divided into two equal time segments, one of which presents the first grayscale data set and the other of the second grayscale data sets.
  • the side view brightness ratio corresponds to SR'%, LG'%, MB'%, where SR>LG>MB, and SR'>LG'>MB'.
  • the standard signal corresponds to a change in brightness that corresponds to an exponential power of 2.2.
  • the brightness ratios of the positive viewing angles of the respective frames of the first frame are determined to be 13.3%, 12.1%, and 12.1%, respectively, and the luminance ratios of the side viewing angles are respectively 39%. 41%, 49%.
  • the luminance ratios of the positive viewing angles of the hue of the second frame are respectively 0. %, 7.4%, 7.4%
  • side view brightness ratios were 0%, 34.7%, and 42.1%, respectively.
  • the display frame frequency needs to be doubled, and the display time of each frame is 1/2 of the original display time.
  • the original display duration of the original frame signal is T
  • it is decomposed into the sum of the time of the two frames on the time series.
  • the frame time after each decomposition is 1/2 of the original frame signal, the two decomposition timing diagrams are used.
  • the intensity of the frame-driven light source must be increased by one time, that is, the intensity of the driving light source of each of the R, G, and B phases is increased to twice the intensity of the original light source, so that the overall brightness is the same as that of the original frame.
  • the intensity of the original light source is A_R
  • the luminance ratio of the G hue and the B hue is A_R
  • the equivalent brightness is such that the dominant color tone is significantly increased relative to the other color tones, so that the side viewing angle is presented closer to the positive viewing angle.
  • the primary color tone is the hue corresponding to the maximum gray level in the original gray scale data group corresponding to the pixel unit.
  • the present application further provides a display driving apparatus corresponding to the above method, including:
  • the original gray level obtaining module 520 is configured to obtain an original gray level data group of each pixel unit in which the content to be displayed is in the preset display area;
  • An average gray level determining module 530 configured to determine an average gray level of each hue in the preset display area according to the original gray level data group;
  • the original light source obtaining module 540 is configured to acquire the original light source intensity of each hue of the content to be displayed in the preset display area;
  • the gray scale group decomposition module 560 is configured to decompose the original gray scale data group into the first gray according to the original gray scale data group of each of the pixel units, the average gray scale of each hue, and the intensity of the original light source. a step data group and a second gray scale data group, and determining a driving light source intensity of each hue in the preset display area; a gray level of each hue of the first gray level data group is in the original gray level data group
  • the maximum gray scale of the second gray scale data group has a gray scale of 0 or greater than a minimum gray scale in the original gray scale data group.
  • the display driving device divides the original gray scale data group into the first gray scale data group and the second gray scale data group, that is, the original frame signal corresponding to each pixel unit is multi-frame combined, and the first gray scale data group
  • the gray scale of each hue is the largest gray scale in the original gray scale data set; the gray scale of each hue of the second gray scale data set is 0 or greater than the minimum gray scale in the original gray scale data set.
  • the gray scale data of each hue in the original gray scale data group is displayed according to the data larger than the minimum gray scale in the original gray scale data group or directly not displayed, but in two groups.
  • the data color of the smallest gray scale in the original gray scale data set is not included in the middle, so that the difference in brightness of the color of the low gray level of the side view relative to the hue of the whole pixel unit is reduced, so that the side view character is close to the front view character phase, and the low color shift display is achieved.
  • the quality of the picture is presented.
  • the method further includes:
  • the original time length obtaining module 670 is configured to acquire an original display duration of the original gray scale data group
  • the duration decomposition module 680 is configured to continuously display the first gray scale data group and the second gray scale data group within the original display duration.
  • the driving light source determining module 650 is configured to determine a driving light source intensity of each hue in the preset display area according to the average gray level of each hue;
  • the gray scale group decomposition module 660 is configured to decompose the original gray scale data group into first gray scale data according to an original gray scale data group of each of the pixel units, the original light source intensity, and the driving light source intensity. Group and second grayscale data set.
  • the gray scale group decomposition module includes:
  • a gray level determining unit 761 configured to use a maximum gray level of each hue of the pixel unit as a gray level of each hue of the first gray level data group;
  • the first brightness determining unit 763 is configured to determine, according to the gray level of each hue of the first gray scale data group, a brightness ratio of the gray level of each hue of the first gray level data group to the full gray level;
  • the second brightness determining unit 765 is configured to determine, according to the brightness ratio of the gray level of each hue of the first gray scale data group to the full gray level, the original light source intensity, and the driving light source intensity, the second gray level The ratio of the gray scale of each hue of the data set to the full gray scale.
  • the method further includes:
  • the area dividing module 610 is configured to divide the display area of the display into not less than two display areas, and sequentially use the display area as the preset display area.
  • the gray-scale group decomposition module further includes: a brightness ratio setting unit 767, configured to determine a gray level of each hue according to the second gray-scale data group with respect to a full gray level The value of the brightness ratio sets the brightness ratio.
  • a brightness ratio setting unit 767 configured to determine a gray level of each hue according to the second gray-scale data group with respect to a full gray level The value of the brightness ratio sets the brightness ratio.
  • the driving light source determining module 650 further includes a driving light source calculating unit; and calculating driving intensity A' n, m_R , A' of each of the R, G, and B color phases n, m_G , A' n, m_B .
  • the duration decomposition module 680 further includes a duration control unit configured to control a display duration of the first gray scale data group and the second gray scale data group.
  • the original light source obtaining module 540 includes: a lookup data table unit, configured to acquire a data table, and search the data table for the original light source of each hue in the preset display area. Intensity, the original light source intensity group of the content to be displayed in the preset display area is obtained.
  • the application also provides a computer device corresponding to the above method.
  • a computer device comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor implementing the computer program to implement the steps of the display driving method described above.
  • the computer device corresponds to the display driving method described above, and the technical features corresponding to the above method in the computer device are not described herein.
  • a storage medium having stored thereon a computer program, wherein the program is executed by the processor to implement any one of the display driving methods as in the above embodiments.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • the computer storage medium storing the computer program, by implementing the flow of the embodiment including the display driving methods as described above, in order to highlight the main color and improve the color shift, the gray scale data of each hue in the original gray scale data set is
  • the data of the original gray scale data group larger than the minimum gray scale is displayed or not displayed directly, and the data color of the smallest gray scale in the original gray scale data group is not included in the two groups, thereby reducing the hue of the low gray scale of the side view angle.
  • the side view character is rendered close to the front view character.

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Abstract

一种显示驱动方法、装置及设备,获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组(S120);根据原灰阶数据组确定预设显示区域内各色相的平均灰阶(S130);获取待显示内容在预设显示区域内的各色相的原光源强度(S140);根据各像素单元的原灰阶数据组、各色相的平均灰阶、原光源强度,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定预设显示区域内各色相的驱动光源强度(S150);第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶;第二灰阶数据组的各色相灰阶为0或者非原灰阶数据组中的最小灰阶。可以减少侧视角低灰阶的色相相对于整体像素单元色相的亮度差异,使得侧视角色相接近正视角色相呈现。

Description

显示驱动方法、装置及设备 技术领域
本申请涉及显示技术领域,特别是涉及一种显示驱动方法、装置及设备。
背景技术
随着科学技术的不断发展,电视、显示器等各种显示设备不断普及,广泛应用于住宅、商场、办公楼等各种需要进行信息显示的场所,为人们的生产和生活带来了便利。
然而,现有的显示器各种代表性色系的侧视角与正视角色偏变化中,红色、绿色和蓝色的色系侧视角色偏情况均较其他色系严重,而且,由于灰阶显示的视角亮度比例的快速饱和提升,使得越低灰阶的正视角亮度与侧视角亮度差异越大。
发明内容
基于此,有必要提供一种可以改善侧视角色偏情况的显示驱动方法、装置及设备。
一种显示驱动方法,包括:
获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组;
根据所述原灰阶数据组确定所述预设显示区域内各色相的平均灰阶;
获取待显示内容在所述预设显示区域内的各色相的原光源强度;
根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度;所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶;所述第二灰阶数据组的各色相灰阶为0或者非所述原灰阶数据组中的最小灰阶。
一种显示驱动装置,包括:
原灰阶获取模块,用于获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组;
平均灰阶确定模块,用于根据所述原灰阶数据组确定所述预设显示区域内各色相的平均灰阶;
原光源获取模块,用于获取待显示内容在所述预设显示区域内的各色相的原光源强度;
灰阶组分解模块,用于根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度;所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶;所述第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。
一种计算机设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现上述的显示驱动方法的步骤。
基于此,该显示驱动方法、装置及设备,通过将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,即将各个像素单元对应的原图框信号作多图框组合,且所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶;所述第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。如此,为了突出主色和改善色偏,将原灰阶数据组中的各色相的灰阶数据按照原灰阶数据组中大于最小灰阶的数据进行显示或者直接不显示,而在两个分组中均不含有原灰阶数据组中最小灰阶的数据颜色,从而减少侧视角低灰阶的色相对于整体像素单元色相的亮度差异,使得侧视角色相接近正视角色相呈现。
附图说明
图1为一实施方式的显示驱动方法及装置的执行设备的内部结构示意图;
图2为一实施方式的显示驱动方法的流程图;
图3为另一实施方式的显示驱动方法的流程图;
图4为图2或图3的显示驱动方法的一个步骤的具体流程图;
图5为一实施方式的显示驱动装置的结构图;
图6为另一实施方式的显示驱动装置的结构图;
图7为图5或图6的显示驱动装置的一个模块的单元结构图。
具体实施方式
为了使本申请的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本申请进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本申请,并不用于限定本申请。
图1为一实施方式中的执行设备的内部结构示意图。执行设备可以为实现显示驱动方法的终端。执行设备包括通过系统总线连接的处理器、存储介质、内存储器、输出装置和输入装置。其中,执行设备的存储介质存储有操作系统以及一种显示驱动装置的计算机应用程序,该显示驱动装置的计算机应用程序被处理器执行时,实现一种显示驱动方法。该处理器用于提供计算和控制能力,支撑整个执行设备的运行。执行设备的内存储器为存储介质中的显示驱动装置运行提供环境,该内存储器中可存储有计算机可读指令,该计算机可读指令被处理器执行时,可使得处理器执行一种显示驱动方法。执行设备的输出装置可以为显示屏,其中,显示屏可以是阴极射线管显示器(CRT)、等离子显示器(PDP)、液晶显示器(LCD)等能够实现显示驱动方法的显示器,优选地显示屏为液晶显示器。执行设备的输入装置可以是显示屏上覆盖的触摸层,也可以是设置在执行设备的外壳上的按键、轨迹球或触控板,也可以是外接的键盘、触控板或鼠标等。本领域技术人员可以理解,图1中示出的结构,仅仅是与本申请方案相关的部分结构的框图,并不构成对本申请方案所 应用于其上的执行设备的限定,具体的执行设备可以包括比图中所示更多或更少的部件,或者组合某些部件,或者具有不同的部件布置。
请参阅图2,本申请提供一种显示驱动方法,包括:
S120:获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组。
显示器是由多个RGB子像素单元构成,每一组RGB子像素单元称之为一像素单元,每一像素单元代表一个影像信号。每一像素单元的原灰阶数据组均包括R、G、B三种色相的灰阶,如可以用(R n,m_i,j,G n,m_i,j,B n,m_i,j)表示第n列m行的显示区域中的第i列j行的像素单元的原灰阶数组。可以将显示器的显示区划分成多个显示区域,每个显示区域包括至少两个像素单元,显示区域的大小可以自行定义,在显示器上可分成N(列)*M(行)个由像素单元构成的显示分区。可以按照预设顺序依次将各显示区域作为预设显示区域实现显示驱动方法。
S130:根据原灰阶数据组确定预设显示区域内各色相的平均灰阶。
根据预设显示区域内各像素单元的原灰阶数据组可以确定该预设显示区域内各色相的平均灰阶。可以通过对各像素单元的原灰阶数据组各色相分别求和之后,再除以该预设显示区域内的像素单元的数量,从而得到该预设显示区域内各色相的平均灰阶,即预设显示区域的平均灰阶组。如可以用(Ave_R n,m,Ave_G n,m,Ave_B n,m)表示第n列m行的显示区域的平均灰阶组。
S140:获取待显示内容在预设显示区域内的各色相的原光源强度。
可以通过查找数据表的方式,获取数据表,在数据表中查找预设显示区域内的各色相的原光源强度,获取待显示内容在预设显示区域内的各色相的原光源强度,即待显示内容在预设显示区域内的原光源强度组。可以理解地,该数据表可预先存在存储器中,需要时直接调用;也可以在需要时获取该数据表,从而获取待显示内容在预设显示区域内的原光源强度组。可以用(A n,m_R、A n,m_G、A n,m_B)表示获取待显示内容在第n列m行的显示区域内的原光源强度组。
S150:根据各像素单元的原灰阶数据组、各色相的平均灰阶、原光源强 度,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定预设显示区域内各色相的驱动光源强度。第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶;第二灰阶数据组的各色相的灰阶为0或者大于原灰阶数据组中的最小灰阶。
可以根据预设显示区域中的所有像素单元各色相的平均灰阶(如,Ave_R n,m,Ave_G n,m,Ave_B n,m)调整该预设显示区域内两图框的R、G、B驱动光源强度。该显示区域(n,m)内R、G、B各色相的原光源强度为A n,m_R、A n,m_G、A n,m_B将调整为A’ n,m_R、A’ n,m_G、A’ n,m_B
上述显示驱动方法通过将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,即将各个像素单元对应的原图框信号作多图框组合,且第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶;第二灰阶数据组的各色相的灰阶为0或者大于原灰阶数据组中的最小灰阶。如此,为了突出主色和改善色偏,将原灰阶数据组中的各色相的灰阶数据按照原灰阶数据组中大于最小灰阶的数据进行显示或者直接不显示,而在两个分组中均不含有原灰阶数据组中最小灰阶的数据颜色,从而减少侧视角低灰阶的色相对于整体像素单元色相的亮度差异,使得侧视角色相接近正视角色相呈现。
请参阅图3,在其中一实施方式中,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组的步骤之后,还包括:
S160:获取原灰阶数据组的原显示时长。
S170:在原显示时长内,连续显示第一灰阶数据组及第二灰阶数据组。
在本实施例中,将一像素单元对应的原图框的灰阶数据组分解为该像素单元对应的两个图框(第一图框和第二图框)的第一灰阶数据组及第二灰阶数据组,依次在时间上呈现两图框的组合,也即依次显示第一灰阶数据组及第二灰阶数据组。将原显示时长分成两个时间段,其中一个时间段显示第一灰阶数据组,另一个时间段显示第二灰阶数据组。优选地,为了保证显示效果,这两个时间段的时间长度相同,即均为原显示时长的一半。
请参阅图4,根据各像素单元的原灰阶数据组、各色相的平均灰阶、原光源强度,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定预设显示区域内各色相的驱动光源强度的步骤,包括:
S251:根据各色相的平均灰阶,确定预设显示区域内各色相的驱动光源强度。
可以根据预设显示区域内的平均灰阶判断平均灰阶中的最大灰阶是属于R、G、B哪一个色相为主的最大平均灰阶子像素,判断出该预设显示区域内的大部分像素单元的最大灰阶是R、G、B其中一个子像素的色相。如此,可以根据该预设显示区域内各色相的平均灰阶中的最大灰阶对应的色相,进而,确定预设显示区域内各色相的驱动光源强度。
假设显示区域(n,m)中的所有像素单元的各色相的平均灰阶为Ave_R n,m=A,Ave_G n,m=B,Ave_B n,m=C,其中,A>B>C,因此该显示区域为红色色相组合。将R、G、B各色相的平均灰阶Ave_R n,m,Ave_G n,m,Ave_B n,m分解成两个图框灰阶组合,分别为R1G1B1组合1(第一灰阶数据组)及R2G2B2组合2(第二灰阶数据组)。其中,R1G1B1组合1中各色相的灰阶均为平均灰阶中的最大灰阶,为A;即R1=A,G1=A,B1=A。R2G2B2组合2中各色相的灰阶则为:最大平均灰阶A对应的色相R2=0,及两个色相G2和B2的灰阶为次大的平均灰阶,为B,即R2=0,G2=B,B2=B。
根据第一灰阶数据组与第二灰阶数据组各色相的灰阶计算R、G、B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B使得整体R、G、B信号亮度维持与原图框亮度相同。R、G、B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B的计算公式如下:
A’ n,m_R=2*TR(A)*A n,m_R/(TR(A)+0)=2*A n,m_R
A’ n,m_G=2*TG(B)*A n,m_G/(TG(A)+TG(B));
A’ n,m_B=2*TB(C)*A n,m_B/(TB(A)+TB(B))。
需要说明的是,该预设显示区域内的R、G、B各色相的平均灰阶对应的 亮度比例可以通过查表的方式获取到,分别为TR(A)、TG(B)、TB(C)。第一灰阶数据组各色相对应的亮度比例,可以通过查表的方式获取到,分别为TR(A)、TG(A)、TB(A)。第二阶数据组各色相对应的亮度比例,可以通过查表的方式获取到,分别为TR(0)=0、TG(B)、TB(B)。亮度比例为相应色相的灰阶与全灰阶的亮度比值。可以理解地,这些数据表可以预先存储在存储器中,需要时直接获取对应的亮度比例;也可以在需要时,获取这些数据表,从而获取到这些亮度比例。
S253:根据各像素单元的原灰阶数据组、原光源强度及驱动光源强度将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组。
根据各像素单元的原灰阶数据组中各色相的最大灰阶,可以确定该像素单元对应的第一图框的第一灰阶数据组。再结合第一灰阶数据组、原光源强度及驱动光源强度,可以根据亮度守恒原理,确定分解后该像素单元的对应的第二图框的灰阶相对于全灰阶的例亮度比例组,亮度比例组包括各色相的亮度比例;可以理解地,亮度比例为相应色相的灰阶与全灰阶的亮度比值。在确定两个亮度比例组之后可以通过查表的方式确定第一灰阶数据组及第二灰阶数据组中各色相的灰阶。需要说明的是,像素单元对应的图框包括在分解之前的该像素单元对应的原图框,及分解之后该像素单元对应的第一图框和第二图框。
进一步地,根据各像素单元的原灰阶数据组、原光源强度及驱动光源强度将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组的步骤,包括:
(a)、将像素单元各色相的最大灰阶作为第一灰阶数据组各色相的灰阶。
(b)、根据第一灰阶数据组各色相的灰阶确定第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例。
(c)、根据第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例、原光源强度及驱动光源强度确定第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例。
情况1:
预设显示区域中的所有像素单元的各色相的平均灰阶为Ave_R n,m=A,Ave_G n,m=B,Ave_B n,m=C,其中,A>B>C,因此该显示区域为红色色相组合。该预设显示区域中多数像素单元的原灰阶数据组表示为(R n,m_i,j=A1,G n,m_i,j=B1,B n,m_i,j=C1),且多数像素单元是满足A1>B1>C1的红色色相组合,此时,该像素单元R i,j,G i,j,B i,j的原灰阶数据组中的最大灰阶为A1,将该像素单元由1图框(原图框)分解成2个图框(第一图框及第二图框)的组合,分解后R i,j、G i,j、B i,j各色相的灰阶分别对应为第一灰阶数据组(R1 i,j,G1 i,j,B1 i,j)及第二灰阶数据组(R2 i,j,G2 i,j,B2 i,j)。其中,第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶,为A1,也即R1 i,j=A1,G1 i,j=A1,B1 i,j=A1。可以通过查表的方式确定第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例分别为TR(A1)、TG(A1)、TB(A1)。再结合该预设显示区域内R、G、B各色相的原光源强度A n,m_R、A n,m_G、A n,m_B及驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B,根据亮度守恒原则,可以确定第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例TR(R2 i,j)、TG(G2 i,j)、TB(B2 i,j),从而可以进一步通过查表的方式根据亮度比例确定个色相的灰阶。在其中一个具体示例中,第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例TR(R2 i,j)、TR(G2 i,j)、TB(B2 i,j)的计算公式如下:
TR(R2 i,j)=(2*A n,m_R*TR(A1)-A’ n,m_R*TR(A1))/A’ n,m_R=0;
TG(G2 i,j)=(2*A n,m_G*TG(B1)-A’ n,m_G*TG(A1)))/A’ n,m_G=((TG(A)+TG(B))/TG(B))*TG(B1)-TG(A1);
TB(B2 i,j)=(2*A n,m_B*TB(C1)-A’ n,m_B*TB(A1))/A’ n,m_B=((TB(A)+TB(B))/TB(C))*TB(C1)-TB(A1)。
情况2:
预设显示区域中的所有像素单元的各色相的平均灰阶为Ave_R n,m=A,Ave_G n,m=B,Ave_B n,m=C,其中,A>B>C,因此该显示区域为红色色相组合。假如当该预设显示区域存在有其它像素单元的原灰阶数据组表示为(R’ i,j=A2,G’ i,j=B2,B’ i,j=C2),该像素单元是B2>C2>A2的绿色色相组合,与该预设显 示区域的平均灰阶的大小顺序不同。将该像素单元R’ i,j、G’ i,j、B’ i,j各色相的灰阶由1图框(原图框)变成2个图框(第一图框及第二图框)的组合,分别对应为第一灰阶数据组(R’1 i,j,G’1 i,j,B’1 i,j)及第二灰阶数据组(R’2 i,j,G’2 i,j,B’2 i,j)。其中,第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶,为B2,也即R’1 i,j=B2,G’1 i,j=B2,B’1 i,j=B2。此时可以通过查表的方式确定第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例分别为TR(B2)、TG(B2)、TB(B2)。再结合该预设显示区域内R、G、B各色相的原光源强度A n,m_R、A n,m_G、A n,m_B及驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B,根据亮度守恒原则,可以确定第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例TR(R’2 i,j)、TG(G’2 i,j)、TB(B’2 i,j),从而可以进一步通过查表的方式根据亮度比例确定个色相的灰阶。在其中一个具体示例中,第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例TR(R’2 i,j)、TG(G’2 i,j)、TB(B’2 i,j)的计算公式如下:
TR(R’2 i,j)=(2*A n,m_R*TR(A2)-A’ n,m_R*(TR(B2)))/A’ n,m_R=TR(A2)-TR(B2),if TR(R’2 i,j)>Y,TR(R’2 i,j)=Y,if TR(R’2 i,j)<0,TR(R’2 i,j)=0;
TG(G’2 i,j)=(2*A n,m_G*TG(B2)-A’ n,m_G*(TG(B2)))/A’ n,m_G=((TG(A)+TG(B))/TG(B))*TG(B2)-TG(B2),if TG(G’2 i,j)>Y,TG(G’2 i,j)=Y,if TG(G’2 i,j)<0,TG(G’2 i,j)=0;
TB(B’2 i,j)=(2*A n,m_B*TB(C2)-A’ n,m_B*(TB(C2)))/A’ n,m_B=((TB(A)+TB(B))/TB(C))*TB(C2)-TB(B2),if TB(B’2i,j)>Y,TB(B’2i,j)=Y,if TB(B’2 i,j)<0,TB(B’2 i,j)=0。
需要说明的是,由于该像素单元的原灰阶数据组与该预设显示区域的平均灰阶的大小顺序不同,该像素单元对应的第二灰阶数据组(R’2 i,j,G’2 i,j,B’2 i,j)各色相的灰阶相对于全灰阶的亮度比例大小通过上述公式确定出来可能会有小于0或者大于预设最大值的可能,因此必须要求对运算出来的第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例TR(R’2 i,j)、TG(G’2 i,j)、TB(B’2 i,j)的值进行判断。如果小于0则该亮度比例设定为0,如果是大于预 设最大值Y,则该亮度比例设定为预设最大值Y。
请继续参阅图3,在其中一实施方式中,获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组的步骤之前,还包括:
S110:将显示器的显示区划分为不少于两个显示区域,并依次将显示区域作为预设显示区域。
可以按照预设顺序依次将各显示区域作为预设显示区域实现显示驱动。预设顺序可以为先进行排序再进行列排序的顺序,也可以为先进行列排序再进行排列的顺序。如此,使得整个显示器的各显示分区都进行显示驱动,从而实现整个显示器的显示驱动。
在其中一实施方式中,根据各像素单元的原灰阶数据组、各色相的平均灰阶、原光源强度,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定预设显示区域内各色相的驱动光源强度的步骤,包括:若预设显示区域内各色相的灰阶均为同一原灰阶数据组,则各色相的平均灰阶即为该原灰阶数据组各色相的灰阶,此时,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,其中,第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶,第二灰阶数据组为的各色相的灰阶为0或原灰阶数据组中的次大灰阶;根据原光源强度、第一灰阶数据组及第二灰阶数据组,确定预设显示区域内各色相的驱动光源强度。
以下给出一个具体示例,当预设显示区域内各色相的灰阶均为R=100,G=80,B=40的红色色相组合时,将像素单元对应的原图框的原灰阶数据组分解成该像素单元对应的两个图框(第一图框及第二图框)的第一灰阶数据组(R1,G1,B1)及第二灰阶数据组(R2,G2,B2)。其中第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶,即100,也即R1=100,G1=100,B1=100。第二灰阶数据组为的各色相的灰阶为0或原灰阶数据组中的次大灰阶,具体地,R2=0,G2=80,B2=80。将原灰阶数据组分解成两个灰阶数据 组,依序在时间上呈现两个灰阶数据组。亦即需要将原图框信号的原显示时长分成两个相等的时间段,其中一个时间段呈现第一灰阶数据组,另一个时间段呈现第二灰阶数据组。
假设一像素单元的原灰阶数据组(R i,j=100,G i,j=80,B i,j=40)的正视角相对于全灰阶255的亮度比例为SR%、LG%、MB%,侧视角亮度比例对应为SR’%、LG’%、MB’%,其中SR>LG>MB,且SR’>LG’>MB’。由于越低灰阶信号的正视角与侧视角亮度比例差异越大,可知SR/MB>SR’/MB’且LG/MB>LG’/MB’,如此混色使得主要亮度信号SR在正视角的亮度比例相对于MB差异大,但侧视角时主要亮度信号SR’亮度比例相对于MB’差异小,正视角主色调颜色受到影响而色彩鲜艳度下降。以现行VA显示器光电特性来看,标准的信号对应亮度变化为符合指数幂次2.2的关系式。如,Y=(X/255) 2.2,其中Y为规一化亮度,X为灰阶(优选的灰阶为0至255的8bit信号),可以通过查表或上述信号对应亮度变化为符合指数幂次2.2的关系式的方式确定:SR%=13.3%、LG%=7.4%、MB=1.7%,SR’%=39%、LG’%=34.7%、MB’=23.1%。
第一灰阶数据组由于灰阶均为100,可以通过查表的方式确定第一图框各色相正视角亮度比例分别为13.3%、12.1%、12.1%,侧视角亮度比例分别为39%、41%、49%。对于第二灰阶数据组(R2 i,j=0,G2 i,j=80,B2 i,j=80),可以通过查表的方式确定第二图框各色相正视角亮度比例分别为0%、7.4%、7.4%,侧视角亮度比例分别为0%、34.7%、42.1%。
由于时序上原图框由1个图框变成两个图框,显示器图框频率需提高一倍,各图框显示时间为原显示时长的1/2。假设原图框信号的原显示时长为T,则分解成时序上2个图框时间的总和,由于各分解后的图框时间为原图框信号的1/2,因此两个分解时序的图框驱动光源强度必须配合增加1倍,亦即R、G、B各色相的驱动光源强度要提升为原光源强度的2倍,才能为维持整体亮度与原图框信号亮度相同。对R色相来说,原光源强度为A_R,驱动光源强度应提升为原光源强度的2倍亦即背光亮度要为A’_R=2*A_R,进一步地,对于G色相及B色相的亮度比例, TG(G1)+TG(G2)=TG(100)+TG(80)=13.3%+7.4%=20.7%大于G色相原亮度比例TG(80)=7.4%,且TB(B1)+TB(B2)=TB(100)+TB(80)=12.1%+7.4%=19.5%大于B色相原亮度比例TB(40)=1.7%,因此需辅以G、B色相驱动光源强度的调整才能保持G、B色相正视角亮度守恒,因此,A’_G=2*A_G*TG(80)/(TG(100)+TG(80))=0.715*A_G、同理A’_B=2*A_B*TB(40)/(TB(100)+TB(80))=0.174*A_B。
由于侧视角图框1与图框2组合在R i,j、G i,j、B i,j各色相上的综合亮度比例分别为(39%+0%)*2=78%,(41%+34.7%)*0.715=54.1%,(49%+42.1%)*0.174=15.9%;而原图框侧视角R i,j、G i,j、B i,j各色相亮度比例分别为39%,34.7%,23.1%,可见,主色调R相对于B的亮度比例的比值由原图框39%/23.1%=1.696提升为组合图框的78%/15.9%=4.9,同样的,主色调R相对于G的亮度比例的比值由原图框39%/34.7%=1.127提升为组合图框的78%/54.1%=1.44,该组合图框降低了原图框低灰阶大视角等效亮度,使得主色调相对于其他色调明显比例提升,使得侧视角较接近正视角主色调呈现。需要说明的是,主色调为像素单元对应的原灰阶数据组中最大灰阶对应的色相。
请参阅图5,本申请还提供一种与上述方法对应的显示驱动装置,包括:
原灰阶获取模块520,用于获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组;
平均灰阶确定模块530,用于根据所述原灰阶数据组确定所述预设显示区域内各色相的平均灰阶;
原光源获取模块540,用于获取待显示内容在所述预设显示区域内的各色相的原光源强度;
灰阶组分解模块560,用于根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度;所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶; 所述第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。
上述显示驱动装置通过将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,即将各个像素单元对应的原图框信号作多图框组合,且第一灰阶数据组的各色相的灰阶为原灰阶数据组中的最大灰阶;第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。如此,为了突出主色和改善色偏,将原灰阶数据组中的各色相的灰阶数据按照原灰阶数据组中大于最小灰阶的数据进行显示或者直接不显示,而在两个分组中均不含有原灰阶数据组中最小灰阶的数据颜色,从而减少侧视角低灰阶的色相对于整体像素单元色相的亮度差异,使得侧视角色相接近正视角色相呈现,达到低色偏显示的画质呈现。
请参阅图6,在其中一实施方式中,还包括:
原时长获取模块670,用于获取所述原灰阶数据组的原显示时长;
时长分解模块680,用于在所述原显示时长内,连续显示所述第一灰阶数据组及所述第二灰阶数据组。
请继续参阅图6,在其中一实施方式中,还包括驱动光源确定模块650;
所述驱动光源确定模块650,用于根据各色相的所述平均灰阶,确定所述预设显示区域内各色相的驱动光源强度;
所述灰阶组分解模块660,用于根据各所述像素单元的原灰阶数据组、所述原光源强度及所述驱动光源强度将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组。
请参阅图7,在其中一实施方式中,所述灰阶组分解模块,包括:
灰阶确定单元761,用于将所述像素单元各色相的最大灰阶作为所述第一灰阶数据组各色相的灰阶;
第一亮度确定单元763,用于根据所述第一灰阶数据组各色相的灰阶确定所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例;
第二亮度确定单元765,用于根据所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例、所述原光源强度及所述驱动光源强度确定所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例。
请继续参阅图6,在其中一实施方式中,还包括:
区域划分模块610,用于将显示器的显示区划分为不少于两个显示区域,并依次将所述显示区域作为所述预设显示区域。
请参阅图7,在其中一实施方式中,所述灰阶组分解模块,还包括:亮度比例设置单元767,用于根据所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例的值设置亮度比例。
请继续参阅图6,在其中一实施方式中,所述驱动光源确定模块650,还包括驱动光源计算单元;用于计算R、G、B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B
请继续参阅图6,在其中一实施方式中,所述时长分解模块680,还包括时长控制单元,用于控制第一灰阶数据组及所述第二灰阶数据组的显示时长。
请继续参阅图6,在其中一实施方式中,所述原光源获取模块540,包括:查找数据表单元,用于获取数据表,在数据表中查找预设显示区域内的各色相的原光源强度,获取待显示内容在预设显示区域内的原光源强度组。
本申请还提供与上述方法对应的计算机设备。
一种计算机设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现上述的显示驱动方法的步骤。
由于上述显示驱动装置与上述显示驱动方法相互对应,对于装置中与上述方法对应的具体技术特征,在此不作赘述。上述计算机设备与上述显示驱动方法对应,对于计算机设备中与上述方法对应的技术特征,在此也不作赘述。
此外,本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程,是可以通过计算机程序来指令相关的硬件来完成,所述的程序可存 储于一非易失性的计算机可读取存储介质中,如本申请实施例中,该程序可存储于计算机系统的存储介质中,并被该计算机系统中的至少一个处理器执行,以实现包括如上述各的显示驱动方法的实施例的流程。
在一个实施例中,还提供一种存储介质,其上存储有计算机程序,其中,该程序被处理器执行时实现如上述各实施例中的任意一种显示驱动方法。其中,所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory,ROM)或随机存储记忆体(Random AccessMemory,RAM)等。
该计算机存储介质,其存储的计算机程序,通过实现包括如上述各显示驱动方法的实施例的流程,为了突出主色和改善色偏,将原灰阶数据组中的各色相的灰阶数据按照原灰阶数据组中大于最小灰阶的数据进行显示或者直接不显示,而在两个分组中均不含有原灰阶数据组中最小灰阶的数据颜色,从而减少侧视角低灰阶的色相对于整体像素单元色相的亮度差异,使得侧视角色相接近正视角色相呈现。
以上所述实施例仅表达了本申请的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本申请构思的前提下,还可以做出若干变形和改进,这些都属于本申请的保护范围。因此,本申请专利的保护范围应以所附权利要求为准。

Claims (20)

  1. 一种显示驱动方法,包括:
    获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组;
    根据所述原灰阶数据组确定所述预设显示区域内各色相的平均灰阶;
    获取所述待显示内容在所述预设显示区域内的各色相的原光源强度;
    获取所述待显示内容在所述预设显示区域内的各色相的原光源强度的步骤包括:获取数据表,在数据表中查找预设显示区域内的各色相的原光源强度,获取待显示内容在预设显示区域内的原光源强度组;
    根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度;所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶;所述第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。
  2. 根据权利要求1所述的显示驱动方法,其特征在于,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组的步骤之后,还包括:
    获取所述原灰阶数据组的原显示时长;
    在所述原显示时长内,连续显示所述第一灰阶数据组及所述第二灰阶数据组。
  3. 根据权利要求1所述的显示驱动方法,其特征在于,根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度的步骤,包括:
    根据各色相的所述平均灰阶,确定所述预设显示区域内各色相的驱动光源强度;
    根据各所述像素单元的原灰阶数据组、所述原光源强度及所述驱动光源强度将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组。
  4. 根据权利要求3所述的显示驱动方法,其特征在于,根据各所述像素 单元的原灰阶数据组、所述原光源强度及所述驱动光源强度将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组的步骤,包括:
    将所述像素单元各色相的最大灰阶作为所述第一灰阶数据组各色相的灰阶;
    根据所述第一灰阶数据组各色相的灰阶确定所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例;
    根据所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例、所述原光源强度及所述驱动光源强度确定所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例。
  5. 根据权利要求1所述的显示驱动方法,其特征在于,根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度的步骤,包括:
    当预设显示区域内各色相的灰阶均为同一原灰阶数据组时,则各色相的平均灰阶即为该原灰阶数据组各色相的灰阶,将原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组。
  6. 根据权利要求4所述的显示驱动方法,其特征在于,当所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例的值小于0,则将亮度比例设定为0。
  7. 根据权利要求4所述的显示驱动方法,其特征在于,当所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例的值大于预设的最大值,则将亮度比例设定为预设最大值。
  8. 根据权利要求2所述的显示驱动方法,其特征在于,所述第一灰阶数据组及所述第二灰阶数据组的显示时长为原显示时长的一半。
  9. 根据权利要求3所述的显示驱动方法,其特征在于,根据第一灰阶数据组与第二灰阶数据组各色相的灰阶计算R、G、B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B使得整体R、G、B信号亮度维持与原图框亮度相同,R、G、 B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B的计算公式如下:
    A’ n,m_R=2*TR(A)*A n,m_R/(TR(A)+0)=2*A n,m_R
    A’ n,m_G=2*TG(B)*A n,m_G/(TG(A)+TG(B));
    A’ n,m_B=2*TB(C)*A n,m_B/(TB(A)+TB(B));
    其中,TR(A)、TG(B)、TB(C)为预设显示区域内的R、G、B各色相的平均灰阶对应的亮度比例,A n,m_R、A n,m_G、A n,m_B为显示区域内R、G、B各色相的原光源强度。
  10. 根据权利要求1所述的显示驱动方法,其特征在于,获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组的步骤之前,还包括:
    将显示器的显示区划分为不少于两个显示区域,并依次将所述显示区域作为所述预设显示区域。
  11. 一种显示驱动装置,包括:
    原灰阶获取模块,用于获取待显示内容在预设显示区域内的各像素单元的原灰阶数据组;
    平均灰阶确定模块,用于根据所述原灰阶数据组确定所述预设显示区域内各色相的平均灰阶;
    原光源获取模块,用于获取所述待显示内容在所述预设显示区域内的各色相的原光源强度;
    灰阶组分解模块,用于根据各所述像素单元的原灰阶数据组、各色相的所述平均灰阶、所述原光源强度,将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组,并确定所述预设显示区域内各色相的驱动光源强度;所述第一灰阶数据组的各色相的灰阶为所述原灰阶数据组中的最大灰阶;所述第二灰阶数据组的各色相的灰阶为0或者大于所述原灰阶数据组中的最小灰阶。
  12. 根据权利要求11所述的显示驱动装置,其特征在于,还包括:
    原时长获取模块,用于获取所述原灰阶数据组的原显示时长;
    时长分解模块,用于在所述原显示时长内,连续显示所述第一灰阶数据 组及所述第二灰阶数据组。
  13. 根据权利要求11所述的显示驱动装置,其特征在于,还包括驱动光源确定模块;
    所述驱动光源确定模块,用于根据各色相的所述平均灰阶,确定所述预设显示区域内各色相的驱动光源强度;
    所述灰阶组分解模块,用于根据各所述像素单元的原灰阶数据组、所述原光源强度及所述驱动光源强度将所述原灰阶数据组分解成第一灰阶数据组及第二灰阶数据组。
  14. 根据权利要求13所述的显示驱动装置,其特征在于,所述灰阶组分解模块,包括:
    灰阶确定单元,用于将所述像素单元各色相的最大灰阶作为所述第一灰阶数据组各色相的灰阶;
    第一亮度确定单元,用于根据所述第一灰阶数据组各色相的灰阶确定所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例;
    第二亮度确定单元,用于根据所述第一灰阶数据组各色相的灰阶相对于全灰阶的亮度比例、所述原光源强度及所述驱动光源强度确定所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例。
  15. 根据权利要求11所述的显示驱动装置,其特征在于,还包括:
    区域划分模块,用于将显示器的显示区划分为不少于两个显示区域,并依次将所述显示区域作为所述预设显示区域。
  16. 根据权利要求13所述的显示驱动装置,其特征在于,所述驱动光源确定模块,还包括驱动光源计算单元;用于计算R、G、B各色相的驱动光源强度A’ n,m_R、A’ n,m_G、A’ n,m_B
  17. 根据权利要求14所述的显示驱动装置,其特征在于,所述灰阶组分解模块,还包括亮度比例设置单元,用于根据所述第二灰阶数据组各色相的灰阶相对于全灰阶的亮度比例的值设置亮度比例。
  18. 根据权利要求12所述的显示驱动装置,其特征在于,所述时长分解 模块,还包括时长控制单元,用于控制第一灰阶数据组及所述第二灰阶数据组的显示时长。
  19. 根据权利要求11所述的显示驱动装置,其特征在于,所述原光源获取模块,包括:查找数据表单元,用于获取数据表,在数据表中查找预设显示区域内的各色相的原光源强度,获取待显示内容在预设显示区域内的原光源强度组。
  20. 一种计算机设备,包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,其特征在于,所述处理器执行所述计算机程序时实现权利要求1所述的显示驱动方法的步骤。
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