CN113920947A - Display device, display control method and device, and display system - Google Patents

Display device, display control method and device, and display system Download PDF

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Publication number
CN113920947A
CN113920947A CN202111093740.0A CN202111093740A CN113920947A CN 113920947 A CN113920947 A CN 113920947A CN 202111093740 A CN202111093740 A CN 202111093740A CN 113920947 A CN113920947 A CN 113920947A
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pixels
liquid crystal
pixel
crystal panel
brightness
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CN113920947B (en
Inventor
黄世飞
沙金
沈灿
高超
陈攀
程逸明
张英
方祥
张文迪
李金祥
殷盛杰
陈瑶
陶俊
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BOE Technology Group Co Ltd
Chongqing BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chongqing BOE Optoelectronics Technology Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

An embodiment of the present disclosure provides a display device, including: a backlight module; the brightness adjusting liquid crystal panel is positioned on one side of the backlight module; the liquid crystal display panel is positioned on one side of the brightness adjusting liquid crystal panel, which is far away from the backlight module; the brightness adjusting liquid crystal panel comprises a plurality of first pixels, the liquid crystal display panel comprises a plurality of second pixels, the plurality of first pixels and the plurality of second pixels are in one-to-one correspondence, and the brightness adjusting liquid crystal panel is configured to determine the data voltage of each first pixel in the brightness adjusting liquid crystal panel according to the data voltage of each second pixel in the liquid crystal display panel so as to adjust the brightness difference of two adjacent pixels in the display device. The display device in the disclosure can adjust the brightness difference between two corresponding adjacent pixels in the display device, thereby improving the halo phenomenon caused by jump transition of high-brightness pixels and low-brightness pixels in the liquid crystal display panel and improving the user experience.

Description

Display device, display control method and device, and display system
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display device, a display control method and device, a display system, an electronic device, and a storage medium.
Background
The liquid crystal display product with the LED backlight matched with the Local dimming (Local dimming) technology can achieve the product effect of high brightness and high contrast, but in an actual product, a HALO phenomenon can occur in a transition interval between high brightness and low brightness, namely, an HALO phenomenon, and the user experience is seriously influenced.
Disclosure of Invention
The disclosed embodiments provide a display device, a display control method and device, a display system, an electronic device, and a storage medium, so as to solve or alleviate one or more technical problems in the prior art.
As a first aspect of embodiments of the present disclosure, embodiments of the present disclosure provide a display device including:
a backlight module;
the brightness adjusting liquid crystal panel is positioned on one side of the backlight module;
the liquid crystal display panel is positioned on one side of the brightness adjusting liquid crystal panel, which is far away from the backlight module;
the liquid crystal display panel comprises a plurality of first pixels, the liquid crystal display panel comprises a plurality of second pixels, the first pixels and the second pixels are in one-to-one correspondence, and the liquid crystal display panel is configured to determine the data voltage of each first pixel in the liquid crystal display panel according to the data voltage of each second pixel in the liquid crystal display panel so as to adjust the brightness difference of two adjacent pixels in the display device.
In some possible implementations, the backlight module includes a driving backplane and a plurality of led chips disposed on a side of the driving backplane facing the brightness adjustment liquid crystal panel, the backlight module includes a plurality of backlight areas, the plurality of backlight areas are in one-to-one correspondence with the plurality of second pixels, and a partition board disposed between two adjacent backlight areas is disposed between the backlight module and the brightness adjustment liquid crystal panel.
As a second aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a display control method, which is applied to a display device, where the display device includes a backlight module, a brightness adjustment liquid crystal panel and a liquid crystal display panel, the brightness adjustment liquid crystal panel is located on one side of the backlight module, and the liquid crystal display panel is located on one side of the brightness adjustment liquid crystal panel away from the backlight module; the brightness adjusting liquid crystal panel comprises a plurality of first pixels, the liquid crystal display panel comprises a plurality of second pixels, the first pixels and the second pixels are in one-to-one correspondence, and the control method comprises the following steps:
the method comprises the steps that a plurality of first pixels of a brightness adjusting liquid crystal panel are subjected to partition reconstruction, the reconstructed brightness adjusting liquid crystal panel is obtained, the reconstructed brightness adjusting liquid crystal panel comprises a plurality of third pixels, and each third pixel comprises k adjacent first pixels;
determining the data voltage of a third pixel according to the data voltages of k second pixels corresponding to the third pixel, wherein k is an integer greater than 1;
and determining the data voltages of k first pixels corresponding to the third pixel according to the data voltage of the third pixel.
In some possible implementations, the arranging the plurality of third pixels in m rows and p columns, arranging the plurality of second pixels of the liquid crystal display panel in m rows and n columns, where n is k times p, and determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel includes:
and determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel in the same row of pixels of the display device.
In some possible implementations, determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel includes:
determining that the data voltage of the third pixel is the same as the data voltage of the k second pixels in the case that the data voltages of the k second pixels are the same;
and under the condition that at least two of the data voltages of the k second pixels are different, determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels.
In some possible implementations, determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels includes:
the data voltage of the third pixel is the product of the sum of the data voltages of the k second pixels and the adjustment factor beta, and the value range of the adjustment factor beta is 0-1.
In some possible implementations, k is 2.
In some possible implementations, determining the data voltages of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel includes:
and determining that the data voltage of each first pixel in the k first pixels corresponding to the third pixel is the same as the data voltage of the third pixel.
As a third aspect of the embodiments of the present disclosure, an embodiment of the present disclosure provides a display control device, which is applied to a display device, where the display device includes a backlight module, a brightness adjustment liquid crystal panel, and a liquid crystal display panel, the brightness adjustment liquid crystal panel is located on one side of the backlight module, and the liquid crystal display panel is located on one side of the brightness adjustment liquid crystal panel away from the backlight module; the brightness adjustment liquid crystal panel includes a plurality of first pixels, the liquid crystal display panel includes a plurality of second pixels, the plurality of first pixels and the plurality of second pixels correspond one-to-one, and the display control device includes:
the pixel reconstruction module is used for performing partition reconstruction on a plurality of first pixels of the brightness adjusting liquid crystal panel to obtain a reconstructed brightness adjusting liquid crystal panel, the reconstructed brightness adjusting liquid crystal panel comprises a plurality of third pixels, and each third pixel comprises k adjacent first pixels;
the first data voltage determining module is used for determining the data voltage of a third pixel according to the data voltages of k second pixels corresponding to the third pixel, wherein k is an integer larger than 1;
and the second data voltage determining module is used for determining the data voltages of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel.
As a fourth aspect of the embodiments of the present disclosure, embodiments of the present disclosure provide a display system including a display control apparatus in the embodiments of the present disclosure and a display apparatus in any one of the embodiments of the present disclosure.
As a fifth aspect of embodiments of the present disclosure, embodiments of the present disclosure provide an electronic device, including:
at least one first processor; and
a first memory communicatively coupled to the at least one first processor; wherein the content of the first and second substances,
the first memory stores instructions executable by the at least one first processor to enable the at least one first processor to perform a display control method in any of the embodiments of the present disclosure.
As a sixth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the display control method in any of the embodiments of the present disclosure.
In the embodiment of the disclosure, the brightness of each pixel in the display device is the composite brightness of the corresponding pixels in the brightness-adjusted liquid crystal panel and the liquid crystal display panel, and the brightness difference of two corresponding adjacent pixels in the display device can be adjusted by adjusting the composite brightness of the corresponding pixels in the brightness-adjusted liquid crystal panel and the liquid crystal display panel under the jump of the adjacent high-brightness pixel and low-brightness pixel in the liquid crystal display panel, so that the halo phenomenon caused by the jump transition of the high-brightness pixel and the low-brightness pixel in the liquid crystal display panel can be improved, and the user experience is improved.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present disclosure will be readily apparent by reference to the drawings and following detailed description.
Drawings
In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are not to be considered limiting of its scope.
FIG. 1 is a schematic diagram of a display device;
FIG. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of the brightness adjusting LCD panel of FIG. 2 in one embodiment;
FIG. 4 is a schematic diagram of the LCD panel of FIG. 2 in one embodiment;
FIG. 5 is a schematic view of the backlight module shown in FIG. 2 in one embodiment;
FIG. 6 is a flowchart illustrating a display control method according to an embodiment of the disclosure;
FIG. 7a is a diagram of a reconstructed LC panel according to an embodiment;
FIG. 7b is a diagram of a reconstructed liquid crystal panel with brightness adjustment according to another embodiment
FIG. 8a is a schematic diagram of data voltages of second pixels in an LCD panel;
FIG. 8b is a schematic diagram of the data voltage of each third pixel in the reconstructed brightness-adjusted liquid crystal panel;
FIG. 8c is a schematic diagram of data voltages of pixels in the display device;
FIG. 8d is a diagram illustrating data voltages of pixels in the display device obtained according to FIGS. 8a and 8 c;
FIG. 9 is a graph comparing halo luminance of the display device of FIG. 1 and the display device in the disclosed embodiment;
fig. 10 is a block diagram of a display control apparatus according to an embodiment of the present disclosure.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can appreciate, the described embodiments can be modified in various different ways, without departing from the spirit or scope of the present disclosure. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Fig. 1 is a schematic structural diagram of a display device. As shown in fig. 1, the display device includes a backlight module 501, a first polarizer 502, a liquid crystal display panel 503, a second polarizer 504, and a glass substrate 505 stacked in sequence. The backlight module 501 includes a plurality of backlight regions, which correspond to the plurality of pixel regions of the liquid crystal display panel 503 one to one. The backlight module 501 can realize local dimming, the backlight module 501 lights the backlight area corresponding to the pixel area as required, and the rest backlight areas do not emit light, thereby realizing high contrast. Although the backlight is subjected to light beam splitting in the backlight scheme to avoid a HALO phenomenon between pixel regions, in an actual product, a HALO phenomenon, i.e., a HALO phenomenon, occurs in a transition region between adjacent high-luminance pixels and low-luminance pixels, which seriously affects user experience.
Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the disclosure, fig. 3 is a schematic diagram of the brightness-adjusting liquid crystal panel in fig. 2 in an embodiment, and fig. 4 is a schematic diagram of the liquid crystal panel in fig. 2 in an embodiment. As shown in fig. 2, the display device may include a backlight module 11, a brightness-adjusting liquid crystal panel 12, and a liquid crystal display panel 13, wherein the brightness-adjusting liquid crystal panel 12 is located on one side of the backlight module 11, and the liquid crystal display panel 13 is located on one side of the brightness-adjusting liquid crystal panel 12 away from the backlight module 11. As shown in fig. 3 and 4, the luminance-adjusting liquid crystal panel 12 includes a plurality of first pixels (B)121, the liquid crystal display panel 13 includes a plurality of second pixels (a)131, the plurality of first pixels 121 and the plurality of second pixels 131 correspond one-to-one, and the luminance-adjusting liquid crystal panel 12 is configured to determine a data voltage B of each first pixel 121 in the luminance-adjusting liquid crystal panel 12 according to a data voltage a of each second pixel 131 in the liquid crystal display panel 13 to adjust a luminance difference between adjacent two pixels in the display apparatus.
The liquid crystal display panel 13 is used for displaying an image, and the luminance adjustment liquid crystal panel 12 is used for performing luminance adjustment.
The display device in the embodiment of the present disclosure adopts a screen-stacking technology (BD CELL technology) of the brightness adjustment liquid crystal panel 12 and the liquid crystal display panel 13, determines a data voltage of each first pixel 121 in the brightness adjustment liquid crystal panel 12 according to a data voltage of each second pixel 131 in the liquid crystal display panel 13, and independently controls the deflection of the liquid crystal layers in the brightness adjustment liquid crystal panel 12 and the liquid crystal display panel 13, respectively, so as to adjust the brightness difference between two adjacent pixels in the display device. Therefore, compared with the display device shown in fig. 1, the luminance of each pixel in the display device in the embodiment of the present disclosure is the composite luminance of the luminances of the corresponding pixels in the luminance adjustment liquid crystal panel 12 and the liquid crystal display panel 13, and under the jump of the adjacent high-luminance pixel and low-luminance pixel in the liquid crystal display panel 13, the luminance difference between the corresponding adjacent two pixels in the display device can be adjusted by adjusting the composite luminance of the luminances of the corresponding pixels in the luminance adjustment liquid crystal panel 12 and the liquid crystal display panel 13, so that the halo phenomenon caused by the jump transition of the high-luminance pixel and the low-luminance pixel in the liquid crystal display panel can be improved, and the user experience can be improved.
The luminance adjustment liquid crystal panel 12 is used as an auxiliary liquid crystal panel for adjusting the luminance in the high-low luminance transition section. One side of the liquid crystal display panel 13 departing from the brightness adjusting liquid crystal panel 12 may be provided with a color film layer, and the liquid crystal display panel 13 is used for displaying images.
Illustratively, the brightness adjusting liquid crystal panel 12 may include a brightness adjusting liquid crystal layer and a first pixel electrode and a first common electrode for driving the brightness adjusting liquid crystal layer to deflect, and the specific structure of the brightness adjusting liquid crystal panel 12 may adopt a conventional structure of a liquid crystal panel, and is not particularly limited herein.
Illustratively, the liquid crystal display panel 13 may include a display liquid crystal layer and a second pixel electrode and a second common electrode for driving the display liquid crystal layer to deflect, and the specific structure of the liquid crystal display panel 13 may adopt a conventional structure of a liquid crystal panel, and is not particularly limited herein.
In one embodiment, as shown in fig. 2, the display device may further include a first polarizer 31, a second polarizer 32, and a third polarizer 33, where the first polarizer 31 is located on a side of the brightness-adjusted liquid crystal panel 12 facing the backlight module 11, the second polarizer 32 is located between the brightness-adjusted liquid crystal panel 12 and the liquid crystal display panel 13, and the third polarizer 33 is located on a side of the liquid crystal display panel 13 facing away from the brightness-adjusted liquid crystal panel 12. The display device may further include a glass substrate 505, and the glass substrate 505 is disposed on a side of the third polarizer 33 facing away from the liquid crystal display panel 13.
FIG. 5 is a schematic diagram of the backlight module shown in FIG. 2 in an embodiment. In one embodiment, the backlight assembly 11 may include a driving back plate and a plurality of Light Emitting Diode (LED) chips disposed at a side of the driving back plate facing the brightness adjusting liquid crystal panel 12. As shown in fig. 5, the backlight module 11 may include a plurality of backlight regions 111, and the plurality of backlight regions (D)111 correspond to the plurality of second pixels 131 one to one. Each backlight area 111 is provided with one or more LED chips or groups of LED chips. The backlight module may employ local dimming technology so that the brightness of each backlight area 111 can be controlled individually. The brightness of multiple LED chips or groups of LED chips in the backlight area 111 can be controlled simultaneously.
It should be noted that, in actual display, the LED chips in the corresponding backlight area 111 may be turned on according to display requirements, and the LED chips in the remaining backlight areas 111 may be turned off, so as to achieve the purpose of high contrast.
It should be noted that the Light Emitting Diode chip may be a sub-millimeter Light Emitting Diode (Mini LED) chip, or may be a Micro Light Emitting Diode (Micro LED) chip.
As shown in fig. 2, the display device may further include a partition plate 41 located between two adjacent backlight areas 111, the partition plate 41 being disposed between the backlight module 11 and the brightness adjusting liquid crystal panel 12. For example, the spacer 41 may be disposed between the backlight assembly 11 and the first polarizer 31. By arranging the partition plate 41 between two adjacent backlight areas 111, the two adjacent backlight areas 111 can be physically separated, so that the brightness interference between the two adjacent backlight areas 111 is avoided, and the halo phenomenon is reduced.
For example, a separation plate may be disposed between two adjacent first pixels 121 to reduce the influence of brightness between the two adjacent first pixels; a spacer may also be disposed between two adjacent second pixels 131 to reduce the influence of brightness between the two adjacent second pixels. Thus, the halo phenomenon caused by the transition region of high and low brightness of the display device is further reduced.
The embodiment of the disclosure also provides a display control method applied to the display device. As shown in fig. 2, the display device includes a backlight module 11, a brightness-adjusting liquid crystal panel 12 and a liquid crystal display panel 13, wherein the brightness-adjusting liquid crystal panel 12 is located at one side of the backlight module 11, and the liquid crystal display panel 13 is located at one side of the brightness-adjusting liquid crystal panel 12 away from the backlight module 11; the luminance adjustment liquid crystal panel 12 includes a plurality of first pixels, and the liquid crystal display panel 13 includes a plurality of second pixels, the plurality of first pixels and the plurality of second pixels corresponding one to one. Fig. 6 is a flowchart illustrating a display control method according to an embodiment of the disclosure. As shown in fig. 6, the display control method may include:
s10, performing partition reconstruction on the first pixels of the brightness adjustment liquid crystal panel to obtain a reconstructed brightness adjustment liquid crystal panel, wherein the reconstructed brightness adjustment liquid crystal panel comprises a plurality of third pixels, and each third pixel comprises k adjacent first pixels;
s20, determining the data voltage of the third pixel according to the data voltages of k second pixels corresponding to the third pixel, wherein k is an integer larger than 1;
and S30, determining the data voltages of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel.
Illustratively, the plurality of first pixels of the luminance-adjusting liquid crystal panel may be divisionally reconstructed as needed. Fig. 7a is a schematic diagram of a reconstructed brightness-adjusting liquid crystal panel in one embodiment, and fig. 7b is a schematic diagram of a reconstructed brightness-adjusting liquid crystal panel in another embodiment. As shown in fig. 7a, after the divisional reconstruction of the plurality of first pixels, the third pixel B' may include at least two rows and at least two columns of the first pixels B. After the first pixels are reconstructed in a partitioned manner, the third pixels may include k adjacent first pixels located in the same row, as shown in fig. 7b, or the third pixels may include k adjacent first pixels located in the same column, where k is 2 in fig. 7 b.
It should be noted that, each second pixel in the liquid crystal display panel corresponds to each first pixel in the brightness adjustment liquid crystal panel one to one, and therefore, the third pixel includes k adjacent first pixels, and each first pixel in the k adjacent first pixels has a corresponding second pixel, and therefore, the k second pixels corresponding to the third pixel are the k adjacent second pixels corresponding to the k adjacent first pixels. For example, the third pixel includes k adjacent first pixels respectively B3,3And B3,4，B3,3And B3,4And A3,3And A3,4One-to-one correspondence is made, then, k second pixels corresponding to the third pixel are a3,3And A3,4。
It should be noted that the liquid crystal display panel is used for displaying an image, and therefore, the data voltage of each second pixel in the liquid crystal display panel can be determined according to the image to be displayed.
In the display control method in the embodiment of the present disclosure, each third pixel corresponds to k adjacent second pixels; and determining the data voltage of the third pixel according to the data voltage of the k second pixels corresponding to the third pixel, and further determining the data voltage of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel. When the adjacent high-brightness pixel and low-brightness pixel jump transition exists in the k adjacent second pixels, the data voltage of the third pixel is determined according to the data voltage of the k second pixels, and the brightness jump between two pixels (corresponding to the high-brightness pixel and the low-brightness pixel of the liquid crystal display panel respectively) corresponding to the display device can be weakened, so that the effect of adjusting the brightness difference of the two adjacent pixels in the display device is achieved, the halo phenomenon caused by the jump transition of the high-brightness pixel and the low-brightness pixel of the liquid crystal display panel is improved, and the user experience is improved.
As shown in fig. 4, the plurality of second pixels of the liquid crystal display panel 13 are arranged in m rows and n columns, and the plurality of first pixels of the brightness adjusting liquid crystal panel 12 are arranged in m rows and n columns. In one embodiment, as shown in fig. 7b, in the reconstructed brightness-adjusting liquid crystal panel, the third pixels are arranged in m rows and p columns, and n is k times p. That is, when performing the divisional reconstruction of the plurality of first pixels of the luminance adjustment liquid crystal panel 12, k adjacent columns of the first pixels are reconstructed as one column of the third pixels, and the number of rows is kept unchanged, that is, the number of rows of the third pixels is the same as the number of rows of the first pixels.
In fig. 7b, the adjacent k columns of first pixels are reconstructed into one column of third pixels, and the number of rows remains unchanged. In other embodiments, the adjacent k rows of first pixels may be reconstructed as a row of third pixels, and the number of columns remains the same, i.e., the number of columns of third pixels is the same as the number of columns of first pixels.
In one embodiment, determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel may include: and determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel in the same row of pixels of the display device.
In one embodiment, determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel may include: determining that the data voltage of the third pixel is the same as the data voltage of the k second pixels in the case that the data voltages of the k second pixels are the same; and under the condition that at least two of the data voltages of the k second pixels are different, determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels.
For example, as shown in fig. 7B, k ═ 2, and the third pixel B'i,jCorresponding to two second pixels respectively being Ai,2j-1And Ai,2jThen, based on the second pixel Ai,2j-1Data voltage a ofi,2j-1And a second pixel Ai,2jData voltage a ofi,2jDetermining a third pixel B'i,jData voltage of b'i,j. At data voltage ai,2j-1And a data voltage ai,2jIn the same case, the third pixel B 'is determined'i,jData voltage of b'i,jIs ai,2j-1Or ai,2j. At data voltage ai,2j-1And a data voltage ai,2jIn case of non-uniformity, according to the data voltage ai,2j-1And a data voltage ai,2jOf which the sum determines the third pixel B'i,jData voltage of b'i,j。
In one embodiment, determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels may include: the data voltage of the third pixel is the product of the sum of the data voltages of the k second pixels and the adjustment factor beta, and the value range of the adjustment factor beta is 0-1. For example, in FIG. 7b, at data voltage ai,2j-1And a data voltage ai,2jNot the same condition, b'i,j＝β*(ai,2j-1+ai,2j). Wherein beta is an adjusting factor, the value of beta can be adjusted according to the actual value of beta in the implementation process, and the value range of beta is 0-1 (including an endpoint value).
In one embodiment, determining the data voltages of k first pixels corresponding to the third pixel according to the data voltage of the third pixel may include: and determining that the data voltage of each first pixel in the k first pixels corresponding to the third pixel is the same as the data voltage of the third pixel. Accordingly, the data voltage c of each pixel in the display device finally obtainedi,j＝α*ai,j. Wherein alpha is a parameter factor of the compounded abstract deflection voltage, and the specific value of alpha is determined by beta, the characteristics of a liquid crystal layer in the brightness adjusting liquid crystal panel and the liquid crystal layer in the liquid crystal display panel. In this way, the data voltage of each first pixel in the brightness-adjusted liquid crystal panel can be determined according to the data voltage of each second pixel in the liquid crystal display panel, so that the brightness of each pixel in the display device is the composite brightness of the corresponding pixels in the brightness-adjusted liquid crystal panel 12 and the liquid crystal display panel 13.
The following describes in detail a technical solution of a display control method in an embodiment of the present disclosure, taking an example where pixels of a liquid crystal display panel are 5 rows and 6 columns. Fig. 8a is a schematic diagram of data voltages of second pixels in the liquid crystal display panel, fig. 8b is a schematic diagram of data voltages of third pixels in the brightness-adjusted liquid crystal panel after reconstruction, and fig. 8c is a schematic diagram of data voltages of pixels in the display device. In fig. 8b, two adjacent columns of first pixels are reconstructed into a column of third pixels, the number of rows of the third pixels being the same as the number of rows of the first pixels. In FIG. 8a, the second pixel A3,3Data voltage a of3,3Is 255a gray scale voltage value, the second pixel A3,4Data voltage a of3,4Is 255a gray scale voltage value, the second pixel A3,5Data voltage a of3,5Is 255a gray scale voltage value, the second pixel A3,6Data voltage a of3,6 Is 0 gray scale voltage value.
In FIG. 8B, the third pixel B'3,2Corresponding to the second pixel A3,3And a second pixel A3,4. Second pixel A3,3And a second pixel A3,4Is 255a gray scale voltage value, and thus, the third pixel B'3,2Data voltage of b'3,2Is 255 b' gray scale voltage value. In FIG. 8B, the third pixel B'3,3Corresponding to the second pixel A3,5And a second pixel A3,6. Second pixel A3,5And a second pixel A3,6Is not the same, and thus, the third pixel B'3,3Data voltage of b'3,3Is beta (a)3,5+a3,6) I.e. b'3,3β — (0+255) b' gray scale voltage value.
Fig. 8c is a schematic diagram of the data voltage of each first pixel in the brightness-adjusted liquid crystal panel obtained according to fig. 8 b. Fig. 8d is a schematic diagram of the data voltages of the pixels in the display device obtained according to fig. 8a and 8 c. And correspondingly compounding each first pixel in the brightness adjusting liquid crystal panel and each second pixel in the liquid crystal display panel to obtain the brightness of each pixel in the display device. As shown in FIG. 8a, in the LCD panel, the second pixel A3,5Data voltage a of3,5Is 255a gray scale voltage value, the second pixel A3,6Data voltage a of3,6 Is 0 gray scale voltage value. As shown in FIG. 8d, in the display device, the pixel C3,5Data voltage c of3,5Is alpha C-255C gray scale voltage value, pixel C3,6Data voltage c of3,5Is 0-alpha c gray scale voltage value. Obviously, the data voltage c3,5And a data voltage c3,6Is less than the data voltage a3,5And a data voltage a3,6That is, the pixel C3,5And pixel C3,6Is smaller than the second pixel A3,5And a second pixel A3,6The luminance difference of (a). Therefore, the brightness difference of two adjacent pixels in the display device is adjusted, the brightness jump of the high-brightness pixel and the low-brightness pixel is reduced, the phenomenon of halation in the pixels is improved, and the user experience is improved.
Fig. 9 is a comparison graph of halo luminance of the display device shown in fig. 1 and the display device in the embodiment of the present disclosure. As shown in fig. 9, where Δ L1 is a luminance transition range and Δ L2 is a luminance transition range and halo luminance range of the display device shown in fig. 1, it can be known through comparison that both the luminance and halo ranges corresponding to Δ L2 are smaller than those corresponding to Δ L1, and therefore, compared with the display device in the related art, the halo phenomenon of the display device in the embodiment of the present disclosure is greatly improved, and the user experience is improved.
The embodiment of the disclosure also provides a display control device applied to the display device. The display device comprises a backlight module 11, a brightness adjusting liquid crystal panel 12 and a liquid crystal display panel 13, wherein the brightness adjusting liquid crystal panel 12 is positioned on one side of the backlight module 11, and the liquid crystal display panel 13 is positioned on one side, away from the backlight module 11, of the brightness adjusting liquid crystal panel 12; the luminance adjustment liquid crystal panel 12 includes a plurality of first pixels, and the liquid crystal display panel 13 includes a plurality of second pixels, the plurality of first pixels and the plurality of second pixels corresponding one to one. Fig. 10 is a block diagram of a display control apparatus according to an embodiment of the disclosure, and as shown in fig. 10, the display control apparatus includes:
the pixel reconstruction module 61 is configured to perform partition reconstruction on a plurality of first pixels of the brightness adjustment liquid crystal panel to obtain a reconstructed brightness adjustment liquid crystal panel, where the reconstructed brightness adjustment liquid crystal panel includes a plurality of third pixels, and each third pixel includes k adjacent first pixels;
a first data voltage determining module 62, configured to determine a data voltage of a third pixel according to data voltages of k second pixels corresponding to the third pixel, where k is an integer greater than 1;
and a second data voltage determining module 63, configured to determine, according to the data voltage of the third pixel, data voltages of k first pixels corresponding to the third pixel.
The embodiment of the present disclosure further provides a display system, which includes the display device in any embodiment of the present disclosure and the display control device in any embodiment of the present disclosure.
An embodiment of the present disclosure further provides an electronic device, including: at least one first processor; and a first memory communicatively coupled to the at least one first processor; the first memory stores instructions executable by the at least one first processor, and the instructions are executed by the at least one first processor to enable the at least one first processor to execute the display control method in any embodiment of the disclosure.
The disclosed embodiments also provide a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the display control method in any one of the disclosed embodiments.
The display device provided by the embodiment of the disclosure can be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In the description of the present specification, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present disclosure.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, "a plurality" means two or more unless specifically limited otherwise.
In the present disclosure, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above disclosure provides many different embodiments or examples for implementing different features of the disclosure. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present disclosure. Moreover, the present disclosure may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.
While the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (12)

1. A display device, comprising:
a backlight module;
the brightness adjusting liquid crystal panel is positioned on one side of the backlight module;
the liquid crystal display panel is positioned on one side of the brightness adjusting liquid crystal panel, which is far away from the backlight module;
the brightness adjusting liquid crystal panel comprises a plurality of first pixels, the liquid crystal display panel comprises a plurality of second pixels, the plurality of first pixels and the plurality of second pixels are in one-to-one correspondence, and the brightness adjusting liquid crystal panel is configured to determine the data voltage of each first pixel in the brightness adjusting liquid crystal panel according to the data voltage of each second pixel in the liquid crystal display panel so as to adjust the brightness difference of two adjacent pixels in the display device.
2. The display device according to claim 1, wherein the backlight module comprises a driving backplane and a plurality of led chips disposed on a side of the driving backplane facing the brightness-adjusted liquid crystal panel, the backlight module comprises a plurality of backlight areas, the plurality of backlight areas are in one-to-one correspondence with the plurality of second pixels, and a spacer is disposed between two adjacent backlight areas between the backlight module and the brightness-adjusted liquid crystal panel.
3. The display control method is characterized by being applied to a display device, wherein the display device comprises a backlight module, a brightness adjusting liquid crystal panel and a liquid crystal display panel, the brightness adjusting liquid crystal panel is positioned on one side of the backlight module, and the liquid crystal display panel is positioned on one side of the brightness adjusting liquid crystal panel, which is far away from the backlight module; the brightness adjusting liquid crystal panel comprises a plurality of first pixels, the liquid crystal display panel comprises a plurality of second pixels, and the first pixels and the second pixels are in one-to-one correspondence, and the control method comprises the following steps:
performing partition reconstruction on the plurality of first pixels of the brightness adjustment liquid crystal panel to obtain a reconstructed brightness adjustment liquid crystal panel, wherein the reconstructed brightness adjustment liquid crystal panel comprises a plurality of third pixels, and each third pixel comprises k adjacent first pixels;
determining the data voltage of the third pixel according to the data voltages of k second pixels corresponding to the third pixel, wherein k is an integer greater than 1;
and determining the data voltages of k first pixels corresponding to the third pixel according to the data voltage of the third pixel.
4. The method of claim 3, wherein the third pixels are arranged in m rows and p columns, the second pixels of the LCD panel are arranged in m rows and n columns, n is k times p, and the determining the data voltages of the third pixels according to the data voltages of the k second pixels corresponding to the third pixels comprises:
and determining the data voltage of the third pixel according to the data voltages of the k second pixels corresponding to the third pixel in the same row of pixels of the display device.
5. The method according to claim 3 or 4, wherein the determining the data voltage of the third pixel according to the data voltages of k second pixels corresponding to the third pixel comprises:
determining that the data voltage of the third pixel is the same as the data voltage of the k second pixels in the case that the data voltages of the k second pixels are the same;
and under the condition that at least two of the data voltages of the k second pixels are different, determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels.
6. The method of claim 5, wherein determining the data voltage of the third pixel according to the sum of the data voltages of the k second pixels comprises:
and the data voltage of the third pixel is the product of the sum of the data voltages of the k second pixels and an adjustment factor beta, and the value range of the adjustment factor beta is 0-1.
7. The method of claim 3, wherein k is 2.
8. The method according to claim 3, wherein determining the data voltages of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel comprises:
determining that the data voltage of each of k first pixels corresponding to the third pixel is the same as the data voltage of the third pixel.
9. A display control device is characterized by being applied to a display device, wherein the display device comprises a backlight module, a brightness adjusting liquid crystal panel and a liquid crystal display panel, the brightness adjusting liquid crystal panel is positioned on one side of the backlight module, and the liquid crystal display panel is positioned on one side of the brightness adjusting liquid crystal panel, which is far away from the backlight module; the brightness adjustment liquid crystal panel includes a plurality of first pixels, the liquid crystal display panel includes a plurality of second pixels, and the plurality of first pixels and the plurality of second pixels correspond one-to-one, and the display control apparatus includes:
the pixel reconstruction module is configured to perform partition reconstruction on the plurality of first pixels of the brightness adjustment liquid crystal panel to obtain a reconstructed brightness adjustment liquid crystal panel, where the reconstructed brightness adjustment liquid crystal panel includes a plurality of third pixels, and each third pixel includes k adjacent first pixels;
a first data voltage determining module, configured to determine a data voltage of the third pixel according to data voltages of k second pixels corresponding to the third pixel, where k is an integer greater than 1;
and the second data voltage determining module is used for determining the data voltages of the k first pixels corresponding to the third pixel according to the data voltage of the third pixel.
10. A display system characterized by comprising the display control apparatus of claim 9 and the display apparatus of any one of claims 1 to 2.
11. An electronic device, comprising:
at least one first processor; and
a first memory communicatively coupled to the at least one first processor; wherein the content of the first and second substances,
the first memory stores instructions executable by the at least one first processor to enable the at least one first processor to perform the method of any one of claims 3-8.
12. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 3-8.
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