WO2023143036A1 - 背光亮度的调整方法及设备和系统、存储介质 - Google Patents

背光亮度的调整方法及设备和系统、存储介质 Download PDF

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Publication number
WO2023143036A1
WO2023143036A1 PCT/CN2023/071491 CN2023071491W WO2023143036A1 WO 2023143036 A1 WO2023143036 A1 WO 2023143036A1 CN 2023071491 W CN2023071491 W CN 2023071491W WO 2023143036 A1 WO2023143036 A1 WO 2023143036A1
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Prior art keywords
distance
brightness
backlight module
lamp panels
brightness value
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PCT/CN2023/071491
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English (en)
French (fr)
Inventor
管恩慧
李咸珍
赵天月
牟鑫鑫
夏友祥
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京东方科技集团股份有限公司
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Priority to US18/282,548 priority Critical patent/US20240177681A1/en
Publication of WO2023143036A1 publication Critical patent/WO2023143036A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • Embodiments of the present disclosure relate to, but are not limited to, the field of display technologies, and in particular, relate to a method, device, system, and storage medium for adjusting brightness of a backlight.
  • Mini Light Emitting Diode (Mini LED for short) display device has the characteristics of small size, light and thin product, low power consumption, good dynamic contrast ratio, high brightness, good display effect, no radiation and relatively low production cost. , and are increasingly being used in the field of high-performance display.
  • the Mini LED backlight technology is composed of tens of thousands of ultra-small LED lights, which can make the dimming zones more detailed, have higher contrast, shorten the light mixing distance, and reduce the thickness of the whole machine.
  • the embodiment of the present disclosure provides a method for adjusting the brightness of the backlight, which is set to adjust the brightness of the joint of the lamp boards in the backlight module.
  • the backlight module includes a plurality of lamp boards arranged in an array, and the array A plurality of arranged lamp panels are arranged on the backlight module in a splicing manner, and the method includes:
  • the brightness of the splice of multiple lamp panels is adjusted according to at least one of the first brightness value and the second brightness value.
  • the backlight module further includes a light guide plate, and the calculating the light mixing distance of the backlight module includes:
  • the obtaining multiple light mixing distances between the plurality of lamp panels and the light guide plate includes: obtaining lamps located at both ends of the backlight module along the first direction or the second direction a first light mixing distance and a second light mixing distance between the plate and the rail plate;
  • h is the light mixing distance
  • h 1 is the first light mixing distance
  • h 2 is the second light mixing distance.
  • the calculating the horizontal distance between the plurality of lamp panels includes:
  • the horizontal distance is calculated according to the multiple horizontal distances, the length of the backlight module along the first direction, and the length of the lamp panel along the first direction.
  • the obtaining multiple horizontal distances between the lamp panels located at both ends along the first direction and the edge of the backlight module among the plurality of lamp panels includes: acquiring the plurality of lamp panels arranged in an array The first horizontal distance and the second horizontal distance between the two ends of the first row of light boards in the first direction and the edge of the backlight module respectively, and the acquisition of the last row of light boards among the multiple light boards arranged in an array The third horizontal distance and the fourth horizontal distance between the two ends of one direction and the edge of the backlight module respectively;
  • the horizontal distance is calculated according to the multiple horizontal distances, the length of the backlight module along the first direction, and the length of the lamp panel along the first direction, and is calculated by the following formula:
  • ⁇ x is the horizontal distance between multiple lamp panels
  • Lx is the length of the backlight module along the first direction
  • x1 is the first horizontal distance
  • x2 is the second horizontal distance
  • x3 is the third horizontal distance
  • x 4 is the fourth horizontal distance
  • n is the number of columns of a plurality of lamp panels arranged in an array
  • a is the length of the lamp panels along the first direction.
  • the acquiring the plurality of horizontal distances between the plurality of lamp panels located at both ends along the first direction and the edge of the backlight module among the plurality of lamp panels includes: acquiring the plurality of lamp panels arranged in an array at A plurality of first horizontal distances and a plurality of second horizontal distances between the two ends in the first direction and the edge of the backlight module respectively, the average value of the plurality of first horizontal distances is calculated to obtain the first horizontal distance Average value, calculating the average value of the plurality of second horizontal distances to obtain the average value of the second horizontal distances;
  • the horizontal distance is calculated according to the multiple horizontal distances, the length of the backlight module along the first direction, and the length of the lamp panel along the first direction, and is calculated by the following formula:
  • ⁇ x is the horizontal distance between multiple lamp panels
  • Lx is the length of the backlight module along the first direction
  • n is the number of rows of multiple lamp panels arranged in an array
  • a is the length of the lamp panels along the first direction.
  • the calculation of the first brightness value according to the horizontal distance and the light mixing distance is calculated by the following formula:
  • H x is the first brightness value
  • k 1 is the first brightness reference value
  • h is the light mixing distance
  • the calculating the vertical spacing between the plurality of lamp panels includes:
  • the vertical distance is calculated according to the plurality of vertical distances, the length of the backlight module along the second direction, and the length of the lamp panel along the second direction.
  • the obtaining multiple vertical distances between the lamp panels located at both ends along the second direction among the plurality of lamp panels and the edge of the backlight module includes: acquiring a plurality of lamp panels arranged in an array The first vertical distance and the second vertical distance between the two ends of the first row of lamp boards in the second direction and the edge of the backlight module respectively, and the last row of lamp boards among the multiple lamp boards arranged in an array a third vertical distance and a fourth vertical distance between the two ends in the second direction and the edge of the backlight module;
  • the vertical distance is calculated according to the plurality of vertical distances, the length of the backlight module along the second direction, and the length of the lamp panel along the second direction, and is calculated by the following formula:
  • ⁇ y is the vertical distance between a plurality of lamp panels
  • Ly is the length of the backlight module along the second direction
  • y 1 is the first vertical distance
  • y 2 is the second vertical distance
  • y 3 is the third vertical distance
  • y 4 is the fourth vertical distance
  • n is the number of rows of a plurality of lamp panels arranged in an array
  • b is the length of the lamp panels along the second direction.
  • the obtaining multiple vertical distances between the lamp panels located at both ends along the second direction among the plurality of lamp panels and the edge of the backlight module includes: acquiring a plurality of lamp panels arranged in an array A plurality of first vertical distances and a plurality of second vertical distances between the two ends in the second direction and the edge of the backlight module respectively, calculating the average value of the plurality of first vertical distances to obtain the first vertical distance The average value of the average value of the plurality of second vertical distances is calculated to obtain the average value of the second vertical distance;
  • the vertical distance is calculated according to the plurality of vertical distances, the length of the backlight module along the second direction, and the length of the lamp panel along the second direction, and is calculated by the following formula:
  • ⁇ y is the vertical distance between multiple lamp panels
  • Ly is the length of the backlight module along the second direction
  • n is the number of rows of multiple lamp panels arranged in an array
  • b is the length of the lamp panels along the second direction.
  • H y is the second brightness value
  • k 2 is the second brightness reference value
  • h is the light mixing distance
  • the adjusting the brightness of the joint of multiple lamp panels according to the first brightness value includes: adjusting the brightness along the first direction according to the first brightness value and a first preset brightness value. Adjust the brightness of the adjacent light board at the first joint;
  • the adjusting the brightness of the joint of multiple lamp panels according to the second brightness value includes: according to the second brightness value and the second preset brightness value, adjusting the brightness of adjacent lamp panels along the second direction at the second joint adjust the brightness at
  • the adjusting the brightness of the splice of multiple lamp panels according to the first brightness value and the second brightness value includes:
  • the brightness of the plurality of lamp panels at the third joint is adjusted according to the third brightness value.
  • the calculating the third brightness value according to the first brightness value and the second brightness value includes: calculating the average value of the first brightness value and the second brightness value to obtain the the third brightness value;
  • the adjusting the brightness of the joint of multiple lamp panels according to the third brightness value includes: adjusting the brightness of the multiple lamp panels at the third joint according to the third brightness value and the third preset brightness value Adjustment.
  • adjusting the brightness of a joint of multiple lamp panels according to at least one of the first brightness value and the second brightness value includes:
  • the brightness of the backlight source at the joint of multiple lamp panels on the backlight module is adjusted.
  • the embodiment of the present disclosure also provides a backlight brightness adjustment system, which is configured to adjust the brightness of the joint of the lamp boards in the backlight module,
  • the backlight module includes a plurality of lamp boards arranged in an array, A plurality of light panels arranged in an array are arranged on the backlight module in a splicing manner;
  • the adjustment system includes:
  • the distance calculation module is configured to calculate the light mixing distance and the horizontal spacing and vertical spacing between multiple light panels
  • a brightness value calculation module configured to calculate a first brightness value according to the horizontal distance and the light mixing distance, and calculate a second brightness value according to the vertical distance and the light mixing distance;
  • the adjustment module is configured to adjust the brightness of the junction of multiple lamp panels according to at least one of the first brightness value and the second brightness value.
  • the embodiment of the present disclosure also provides a device for adjusting the brightness of the backlight, which is configured to adjust the brightness of the junction of the lamp boards in the backlight module,
  • the backlight module includes a plurality of lamp boards arranged in an array, A plurality of light panels arranged in an array are arranged on the backlight module in a splicing manner;
  • the adjustment system includes a memory, a processor, and a computer program stored in the memory and operable on the processor to execute:
  • the brightness of the splice of multiple lamp panels is adjusted according to at least one of the first brightness value and the second brightness value.
  • an embodiment of the present disclosure further provides a non-transitory computer-readable storage medium, the storage medium is configured to store computer program instructions, wherein, when the computer program instructions are run, the computer program instructions described in any of the above-mentioned embodiments can be implemented.
  • FIG. 1 is a flowchart of a method for adjusting the brightness of a backlight provided by an embodiment of the present disclosure
  • Fig. 2a is a schematic plan view of a backlight module provided by an exemplary embodiment of the present disclosure
  • Fig. 2b is a schematic plan view of the backlight module provided by an exemplary embodiment of the present disclosure
  • Fig. 3 is a schematic structural diagram of a lamp panel and a light guide plate provided by an exemplary embodiment of the present disclosure
  • Fig. 4 is a schematic plan view of the joint of light panels provided by an exemplary embodiment of the present disclosure
  • Fig. 5 is a schematic plan view of the joint of light panels provided by an exemplary embodiment of the present disclosure
  • Fig. 6 is a schematic plan view of the joint of light panels provided by an exemplary embodiment of the present disclosure.
  • Fig. 7 is a schematic cross-sectional structural view of the light panel joint provided by an exemplary embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a backlight brightness adjustment system provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a device for adjusting brightness of a backlight provided by an embodiment of the present disclosure.
  • connection should be interpreted in a broad sense.
  • it can be a fixed connection, or it can be a detachable connection, or an integral connection; it can be a mechanical connection, or it can be an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate piece, and it can be internal to the two components connected.
  • the embodiment of the present disclosure provides a method for adjusting the brightness of the backlight, which is set to adjust the brightness of the joint of the lamp boards in the backlight module.
  • the backlight module includes a plurality of lamp boards arranged in an array, and a plurality of lamps arranged in an array
  • the board is arranged on the backlight module in a splicing manner, and the adjustment method of the backlight brightness may include:
  • the brightness of the splicing place of the plurality of lamp panels is adjusted according to at least one of the first brightness value and the second brightness value.
  • the method for adjusting the brightness of the backlight calculates the light mixing distance and the horizontal and vertical distances between multiple lamp panels, and according to the light mixing distance and the horizontal and vertical distances between multiple lamp panels Calculate the first brightness value and the second brightness value, and adjust the brightness at the joint of multiple lamp panels according to the first brightness value and the second brightness value. There is an error in the distance between the light boards, the distance between the light boards, and the difference in the height of the light mixing distance, which will cause dark lines or bright lines at the splicing of the light boards.
  • the method for adjusting the brightness of the backlight may include steps S1-step S3:
  • Step S1 Calculate the light mixing distance of the backlight module and the horizontal and vertical spacing between multiple light panels;
  • Step S2 Calculate the first brightness value according to the horizontal distance and the light mixing distance, and calculate the second brightness value according to the vertical distance and the light mixing distance;
  • Step S3 Adjusting the brightness of the splice of multiple lamp panels according to at least one of the first brightness value and the second brightness value.
  • the light mixing distance may be called the optical distance (OD for short).
  • the light mixing distance refers to the vertical distance between the lamp board and the light guide plate. Usually The larger the light mixing distance, the more fully the light mixing of the light beam emitted by the light panel will be, and the better the visual effect will be.
  • the backlight module 101 may include a plurality of lamp panels 102 arranged in an array, and the plurality of lamp panels 102 arranged in an array are arranged on the backlight module 101 in a splicing manner, and the backlight module 101 Multiple sensors 200 may be provided on the edge.
  • the horizontal spacing ⁇ x between the plurality of lamp panels of the backlight module 101 is the distance between two adjacent lamps 102 in the first direction X on the plane where the backlight module is located.
  • the vertical distance ⁇ y between the plurality of lamp panels 102 of the backlight module 101 is the distance between two adjacent lamp panels 102 in the second direction Y on the plane where the backlight module 101 is located.
  • the backlight module 101 includes a first end D1 and a second end D2 oppositely arranged in the first direction X, and a second end D1 oppositely arranged in the second direction Y.
  • the calculation of the horizontal spacing between the plurality of lamp panels in step S1 may include step M11-step M12:
  • Step M11 Obtain the length Lx of the backlight module 101 along the first direction X, the length a of the lamp panel 102 along the first direction X, the lamp panel 101 and the backlight module at both ends of the plurality of lamp panels 101 along the first direction X Multiple horizontal distances between 101 edges (the multiple horizontal distances include the first horizontal distance x1, the second horizontal distance x2, the third horizontal distance x3, and the fourth horizontal distance x4);
  • obtaining a plurality of horizontal distances between the lamp panels 101 located at both ends along the first direction X and the edge of the backlight module 101 among the plurality of lamp panels 101 can be obtained by setting The sensors 200 at the edges at both ends of the X measure distance acquisition.
  • the senor 200 may be a distance sensor.
  • Step M12 Calculate the horizontal distance according to the multiple horizontal distances, the length Lx of the backlight module 101 along the first direction X, and the length a of the lamp panel 102 along the first direction X.
  • the above step M11 may include: obtaining the first horizontal distance between the two ends of the first row of lamp panels in the first direction X and the edge of the backlight module 102 among the plurality of lamp panels arranged in an array x1 (distance between the edge of the lamp panel located in the first row and the first column near the first end D1 of the backlight module 101 and the first end D1 of the backlight module) and the second horizontal distance x2 (located in the first row, the last the distance between the edge of the second end D2 of the backlight module 101 and the second end D2 of the backlight module), and the distance between the last row of lamp panels in the first direction X among the plurality of lamp panels arranged in an array
  • the third horizontal distance x3 between the two ends and the edge of the backlight module 102 respectively (between the edge of the lamp panel in the last row and the first column close to the first end D1 of the backlight module 101 and the first end D1 of the backlight module distance) and the fourth horizontal distance x4 (the
  • the horizontal distance is calculated according to the multiple horizontal distances, the length Lx of the backlight module 102 along the first direction X, and the length a of the lamp panel along the first direction X, which can be calculated by the following formula:
  • ⁇ x is the horizontal distance between multiple lamp panels
  • Lx is the length of the backlight module along the first direction
  • x 1 is the first horizontal distance
  • x 2 is the second horizontal distance
  • x 3 is the third horizontal distance
  • x 4 is the fourth horizontal distance
  • n is the number of columns of multiple light panels arranged in an array (which can be understood as the number of light panels in each row)
  • a is the length of the light panels along the first direction.
  • the above step M11 may include: obtaining a plurality of first horizontal distances (located at Multiple distances between the edge of the first end D1 of the plurality of lamp panels in the first column and the first end D1 of the backlight module 101 may include x11, x12, x13) and multiple second horizontal distances ( A plurality of distances between the edge of the second end D2 of the backlight module 101 and the second end D2 of the plurality of lamp panels located in the last row, which may include x21, x22, x23), calculate a plurality of first horizontal distances The average value of the first horizontal distance is obtained, and the average value of multiple second horizontal distances is calculated to obtain the average value of the second horizontal distance; for example, the average value of the first horizontal distance is calculated by the formula:
  • the first horizontal distance includes x11, x12 and x13, then the average value of the obtained first horizontal distance can be
  • the average value of the second horizontal distance is calculated by the formula:
  • m is an integer greater than or equal to 2.
  • the second horizontal distance includes x21, x22 and x23, then the average value of the obtained second horizontal distance can be
  • the horizontal distance is calculated according to the multiple horizontal distances, the length of the backlight module along the first direction, and the length of the lamp panel along the first direction, and is calculated by the following formula:
  • ⁇ x is the horizontal distance between multiple lamp panels
  • Lx is the length of the backlight module along the first direction
  • n is the number of columns of multiple lamp panels arranged in an array
  • a is the length of the lamp panel along the first direction.
  • the first luminance value calculated according to the horizontal distance and the light mixing distance in the above step S2 can be calculated by the following formula:
  • H x is the first brightness value
  • k 1 is the first brightness reference value
  • h is the light mixing distance
  • step S2 it may also include obtaining the first luminance reference value; the first luminance reference value k1 can be obtained through step L11-step L12:
  • Step L11 Obtain multiple groups of horizontal distances ⁇ x, multiple groups of light mixing distances h corresponding to multiple groups of horizontal distances ⁇ x, and corresponding brightness values, and calculate the ratio of each group of horizontal distances ⁇ x to group light mixing distances h (the calculation formula can be ), obtaining multiple groups of first luminance values corresponding to a ratio of 1 between the horizontal distance ⁇ x and the light mixing distance h;
  • Step L12 Calculate the average value of multiple groups of first luminance values to obtain a first luminance reference value.
  • the calculation of the vertical spacing between the plurality of lamp panels in the above step S1 may include step M21-step M22:
  • Step M21 Obtain the length Ly of the backlight module 101 along the second direction Y, the length b of the lamp panel 102 along the second direction Y, the lamp panel 102 and the backlight module 102 located at both ends of the plurality of lamp panels along the second direction Y Multiple vertical distances between edges;
  • obtaining multiple vertical distances between the lamp panels 102 located at both ends along the second direction Y and the edge of the backlight module 102 among the plurality of lamp panels can be achieved by setting The sensors 200 disposed on the edges at both ends of Y are acquired.
  • Step M22 Calculate the vertical distance according to the multiple vertical distances, the length of the backlight module 101 along the second direction Y, and the length b of the lamp panel 102 along the second direction Y.
  • the above step M21 may include: obtaining the first distance between the two ends of the first row of lamp boards in the second direction Y and the edge of the backlight module 101 among the multiple lamp boards 102 arranged in an array.
  • Vertical distance y1 (the distance between the edge of the lamp panel located in the first row and the first column near the third end D3 of the backlight module 101 and the third end D3 of the backlight module) and the second vertical distance y2 (located in the first column , the distance between the edge of the last row of light boards close to the fourth end D4 of the backlight module 101 and the fourth end D4 of the backlight module), and obtaining the distance between the last row of light boards among the plurality of light boards arranged in an array in the second direction
  • the third vertical distance y3 between the two ends on Y and the edge of the backlight module 101 (the lamp panel located in the last column and the first row is close to the edge of the third end D3 of the backlight module 101 and the third end D3 of the backlight module
  • the vertical distance is calculated according to the multiple vertical distances, the length Ly of the backlight module 101 along the second direction Y, and the length b of the lamp panel 102 along the second direction Y, which can be calculated by the following formula:
  • ⁇ y is the vertical distance between multiple lamp panels
  • Ly is the length of the backlight module along the second direction
  • y 1 is the first vertical distance
  • y 2 is the second vertical distance
  • y 3 is the third vertical distance
  • y 4 is the fourth vertical distance
  • n is the number of rows of multiple lamp panels arranged in an array
  • b is the length of the lamp panels along the second direction.
  • the above-mentioned step M2 may include: obtaining a plurality of first vertical distances (located at Multiple distances between the edge of the plurality of lamp panels in the first row near the third end D3 of the backlight module 101 and the third end D3 of the backlight module, for example, may include y11, y12, y13) and multiple second vertical distances (multiple distances between the edge of the fourth end D4 of the backlight module 101 and the fourth end D4 of the backlight module near the plurality of lamp panels in the last row, for example, may include y21, y22, y23), calculate a plurality of first The average value of the vertical distance is the average value of the first vertical distance, and the average value of multiple second vertical distances is calculated to obtain the average value of the second vertical distance; for example, the average value of the first vertical distance is calculated by the formula:
  • m is an integer greater than or equal to 2.
  • the first vertical distance includes y11, y12 and y13, then the average value of the obtained first vertical distance can be
  • the average value of the second vertical distance is calculated by the formula:
  • m is an integer greater than or equal to 2.
  • the second vertical distance includes y21, y22 and y23, then the average value of the second vertical distance obtained can be
  • the vertical distance is calculated according to the multiple vertical distances, the length of the backlight module along the second direction, and the length of the lamp panel along the second direction, and is calculated by the following formula:
  • ⁇ y is the vertical distance between multiple lamp panels
  • Ly is the length of the backlight module along the second direction
  • n is the number of rows of multiple lamp panels arranged in an array
  • b is the length of the lamp panel along the second direction.
  • the second luminance value calculated according to the vertical distance and the light mixing distance in the above step S2 can be calculated by the following formula:
  • H y is the second brightness value
  • k 2 is the second brightness reference value
  • h is the light mixing distance
  • obtaining the second brightness reference value may also be included before step S2; the second brightness reference value k1 may be obtained through step L21-step L22:
  • Step L21 Obtain multiple groups of horizontal distances ⁇ x, multiple groups of light mixing distances h corresponding to multiple groups of horizontal distances ⁇ x, and corresponding brightness values, and calculate the ratio of each group of horizontal distances ⁇ x to group light mixing distances h (the calculation formula can be ), obtaining multiple groups of second luminance values corresponding to the ratio of the horizontal distance ⁇ x to the light mixing distance h being 1;
  • Step L22 Calculate the average value of multiple sets of second brightness values to obtain a second brightness reference value.
  • the backlight module 101 may further include a light guide plate 103, wherein the light mixing distance of the backlight module 101 is in the direction perpendicular to the plane where the backlight module 101 is located (the third direction Z direction), the vertical distance along the third direction Z between the surface 1021 of the lamp panel 102 facing the light guide plate 103 and the surface 1031 of the light guide plate 103 facing the lamp panel.
  • the calculation of the light mixing distance of the backlight module in the above step S1 may include step H11-step H12:
  • Step H11 Obtain multiple light mixing distances between the multiple lamp panels 102 and the light guide plate 103;
  • the light mixing distance between the plurality of lamp panels 102 and the light guide plate 103 is along the distance between the surface 1021 of the lamp panel 102 facing the light guide plate 103 and the surface 1031 of the light guide plate 103 facing the lamp panel.
  • the distance of Z in three directions.
  • step H11 may include: obtaining the first light mixing distance h1 between the lamp panel and the light guide plate located at both ends of the backlight module 101 along the first direction X or the second direction Y (the backlight module in FIG. 3 The distance between the lamp panel and the light guide plate of the group 101 near the first end D1) and the second light mixing distance h2 (the distance between the lamp panel and the light guide plate of the backlight module 101 near the second end D2 in FIG. 3 ).
  • a distance sensor 200 can be provided on the side 1021 of the lamp panel 102 facing the light guide plate 103, and the first light mixing distance between the lamp panel 102 and the light guide plate 103 can be obtained by measuring the distance sensor 200 on the lamp panel 102 h1 and the second light mixing distance h2.
  • Step H12 Calculate the average value of multiple light mixing distances to obtain the light mixing distance.
  • step H12 the average value of the multiple light mixing distances is calculated to obtain the light mixing distance, which can be calculated by the following formula: Wherein, h is the light mixing distance, h 1 is the first light mixing distance, and h 2 is the second light mixing distance.
  • adjusting the brightness of the splicing positions of multiple lamp panels according to the first brightness value may include: pairing adjacent lamps along the first direction X according to the first brightness value and the first preset brightness value The brightness of the lamp panel 102 at the first joint is adjusted; in the embodiment of the present disclosure, the first preset brightness value and the first preset current value can be set correspondingly, and the first brightness value and the first current value can be set correspondingly (Each brightness value of the first brightness value corresponds to a first current value). When the first current value corresponding to the first brightness value is greater than the first preset current value, the first current value is adjusted down to The first preset current value.
  • the first current value corresponding to the first brightness value is smaller than the first preset current value
  • the first current value is increased to the first preset current value.
  • the brightness of adjacent lamp panels 102 at the first joint M1 can be adjusted according to the first brightness value and the first preset brightness value.
  • the first current value corresponding to the first brightness value is greater than the first preset brightness value
  • the adjacent lamp panels can be The first current value of the backlight source of the board 102 at the first splicing point M1 is adjusted down to the first preset current value; when the adjacent lamp board 102 appears dark lines at the first splicing point M1, the first brightness value is The corresponding first current value is smaller than the first preset brightness value, and the first current value of the backlight source of the adjacent lamp panel 102 at the first splicing point M1 can be increased to the first preset current value; When there are no dark lines or bright lines at the first joint M1 of the board 102, the first current value corresponding to the first brightness value is close to the first preset brightness value, and the adjacent lamp board 102 is at the first joint M1.
  • the first current value of the backlight source may not be adjusted.
  • adjusting the brightness of the splice of multiple lamp panels according to the second brightness value may include: adjusting the brightness of adjacent lamps along the second direction according to the second brightness value and the second preset brightness value The brightness of the board at the second splicing position is adjusted; in the embodiment of the present disclosure, the second preset brightness value can be set to correspond to the second preset current value, and the second brightness value can be set to correspond to the second current value (No. Each brightness value of the two brightness values corresponds to a second current value), in the case that the second current value corresponding to the second brightness value is greater than the second preset current value, the second current value can be adjusted down to the first Two preset current values.
  • the second current value corresponding to the second brightness value is smaller than the second preset current value
  • the second current value can be increased to the second preset current value.
  • the brightness of the adjacent lamp panels 102 at the second joint M2 can be adjusted according to the second brightness value and the second preset brightness value.
  • the second current value corresponding to the second brightness value is greater than the second preset current value, and the second current value of the adjacent lamp panel
  • the second current value of the backlight source at the second splicing point M2 is adjusted down to the second preset current value; when the adjacent lamp panel 102 appears dark lines at the second splicing point M2, the second brightness value corresponding to the second The current value is smaller than the second preset current value, and the second current value of the backlight of the adjacent lamp panel 102 at the second joint M2 is increased to the second preset current value.
  • step S3 adjusting the brightness at the junction of multiple lamp panels according to the first brightness value and the second brightness value may include step N11-step N12:
  • Step N11 Calculate a third brightness value according to the first brightness value and the second brightness value.
  • step N11 may include: calculating an average value of the first brightness value and the second brightness value to obtain a third brightness value. For example, through the formula calculating a third brightness value, wherein H is the third brightness value, Hx is the first brightness value, and Hy is the second brightness value.
  • Step N12 Adjust the brightness of the plurality of lamp panels at the third joint according to the third brightness value.
  • step N12 may include: adjusting the brightness of the plurality of adjacent lamp panels in the first direction and the second direction at the third joint according to the third brightness value and the third preset brightness value ;
  • the third preset brightness value can have a corresponding relationship with the third preset current value
  • the third brightness value and the third current value can have a corresponding relationship (each brightness value of the third brightness value corresponds to a third current value), in the case that the third current value corresponding to the third brightness value is greater than the third preset current value, the third current value is adjusted down to the third preset current value, and at the third brightness value If the corresponding third current value is smaller than the third preset current value, the third current value is increased to the third preset current value.
  • the brightness of the lamp panel 102 at the third joint M3 can be adjusted according to the third brightness value and the third preset brightness value.
  • the third current value corresponding to the third brightness value is smaller than the third preset current value
  • the multiple lamp panels can be The third current value of the backlight source at the third splicing point M3 is adjusted down to the third preset current value; when the lamp panel appears dark lines at the third splicing point M3, the third current value corresponding to the third brightness value If the value is smaller than the third preset current value, the third current value of the backlight of multiple lamp panels at the third joint M3 can be increased to the third preset current value.
  • adjusting the brightness at the joint of multiple lamp panels according to at least one of the first brightness value and the second brightness value may include: according to the first brightness value and the second brightness value At least one of the values adjusts the brightness of the backlight at the joint of multiple lamp panels on the backlight module, so as to realize the adjustment of the brightness of the joint of the lamp panels.
  • 1011 is a backlight on the backlight module 101 , for example, the backlight may be a backlight.
  • Figure 7 is a schematic diagram of the cross-sectional structure of the joint of the lamp panel.
  • M in Figure 7 can be the first joint M1 in Figure 4, or the second joint M2 in Figure 5, or the third joint in Figure 6.
  • the included angle F in FIG. 7 is the included angle of the light irradiation area of the backlight 1011 on the backlight module 101 .
  • the brightness of the M1 backlight source, the backlight source of the M1 at the first splicing position may include a plurality of backlight sources located between the first row and the last row among the plurality of backlight sources in two adjacent columns in two adjacent lamp panels 102 in the first direction X Backlight; adjusting the brightness of the second joint M2 can be to adjust the brightness of the backlight at the second joint M2 in the backlight module 101, and the backlight of the second joint M2 can include two adjacent ones in the second direction Y Among the plurality of backlight sources in two adjacent rows in the lamp panel 102, the backlight located between the first column and the last column; adjusting the brightness of the third joint M3 can be to adjust the backlight at the third joint M3 in the backlight module 101
  • the brightness of the source, the backlight at the third joint M3 may include backlights located at the corners of the four adjacent lamp panels 102
  • the orthographic projections of the first joint M1 , the second joint M2 and the third joint M3 on the plane where the backlight module 101 is located do not have overlapping areas.
  • the embodiment of the present disclosure also provides a backlight brightness adjustment system, which is set to adjust the brightness of the splicing parts of the lamp panels in the backlight module.
  • the backlight module includes a plurality of lamp panels arranged in an array, and a plurality of The light panels are arranged on the backlight module in a splicing manner; as shown in Figure 8, it is a schematic structural diagram of a backlight brightness adjustment system, and the adjustment system may include:
  • the distance calculation module 11 is configured to calculate the light mixing distance and the horizontal spacing and vertical spacing between multiple lamp panels;
  • the brightness value calculation module 12 is configured to calculate the first brightness value according to the horizontal distance and the light mixing distance, and calculate the second brightness value according to the vertical distance and the light mixing distance;
  • the adjustment module 13 is configured to adjust the brightness of the joint of multiple lamp panels according to at least one of the first brightness value and the second brightness value.
  • the embodiment of the present disclosure also provides a device for adjusting the brightness of the backlight, which is set to adjust the brightness of the joint of the lamp boards in the backlight module.
  • the backlight module includes a plurality of lamp boards arranged in an array, and a plurality of The lamp panels are arranged on the backlight module in a splicing manner; as shown in FIG. 9 , it is a schematic structural diagram of a device for adjusting the brightness of the backlight.
  • the adjustment system includes a memory 21, a processor 22, and a memory that is stored in the memory and can run on the processor.
  • the brightness of the splicing place of the plurality of lamp panels is adjusted according to at least one of the first brightness value and the second brightness value.
  • An embodiment of the present disclosure also provides a non-transitory computer-readable storage medium, which is configured to store computer program instructions, wherein the method for adjusting the brightness of the backlight described in any of the above-mentioned embodiments can be implemented when the computer program instructions are running.
  • the method, device, system, and storage medium for adjusting the brightness of the backlight calculate the light mixing distance and the horizontal and vertical distances between multiple lamp panels.
  • the first brightness value and the second brightness value are calculated according to the horizontal distance and vertical distance between the boards, and the brightness of the joint of multiple lamp boards is adjusted according to the first brightness value and the second brightness value, which overcomes the problem caused by the difference between multiple lamp boards. Inconsistent precision between lamp panels, errors in the distance between lamp panels, distance between lamp panels, and height difference of light mixing distance will cause dark lines or bright lines at the splicing of the lamp panels.
  • the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof.
  • the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute.
  • Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
  • Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media).
  • computer storage media includes both volatile and nonvolatile media implemented in any method or technology arranged to store information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media.
  • Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium provided to store desired information and accessible by a computer.
  • communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

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Abstract

一种背光亮度的调整方法及设备和系统、存储介质。调整方法包括：计算背光模组（101）的混光距以及多个灯板（102）之间的水平间距（Δx）和垂直间距（Δy）；根据水平间距（Δx）和混光距计算第一亮度值，根据垂直间距（Δy）和混光距计算第二亮度值；根据第一亮度值和/或第二亮度值对多个灯板（102）拼接处的亮度进行调整。调整方法克服了在灯板（102）拼接处（M）产生暗纹或者亮纹的缺陷。

Description

背光亮度的调整方法及设备和系统、存储介质
本申请要求于2022年1月30日提交中国专利局、申请号为202210113531.6、发明名称为“一种背光亮度的调整方法及设备和系统、存储介质”的中国专利申请的优先权，其内容应理解为通过引用的方式并入本申请中。
技术领域
本公开实施例涉及但不限于显示技术领域，尤其涉及一种背光亮度的调整方法及设备和系统、存储介质。
背景技术
迷你发光二极管(MiniLight Emitting Diode，简写为Mini LED)显示装置因具有体积小、产品轻薄、功耗低、较好的动态对比度、高亮度、显示效果好、无辐射以及制作成本相对较低等特点，而越来越多地被应用于高性能显示领域当中。Mini LED背光技术是利用几万颗超小尺寸的LED灯组成，进而可以将调光分区做得更细致，具有更高的对比度，还能够缩短混光距离，降低整机厚度。
发明内容
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
第一方面，本公开实施例提供了一种背光亮度的调整方法，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上，所述方法包括：
计算所述背光模组的混光距以及多个灯板之间的水平间距和垂直间距；
根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和 所述混光距计算第二亮度值；
根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
在示例性实施方式中，所述背光模组还包括导光板，所述计算所述背光模组的混光距包括：
获取多个所述灯板与所述导光板之间的多个混光距离；
计算所述多个混光距离的平均值得到所述混光距。
在示例性实施方式中，所述获取多个所述灯板与所述导光板之间的多个混光距离，包括：获取位于所述背光模组沿第一方向或第二方向两端的灯板与所述导轨板之间的第一混光距离和第二混光距离；
所述计算所述多个混光距离的平均值得到所述混光距，通过以下公式计算：
Figure PCTCN2023071491-appb-000001
其中，h为混光距，h 1为第一混光距离，h 2为第二混光距离。
在示例性实施方式中，所述计算多个灯板之间的水平间距包括：
获取背光模组沿第一方向的长度、所述灯板沿第一方向的长度、多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离；
根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距。
在示例性实施方式中，所述获取多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离包括：获取阵列排布的多个灯板中第一行灯板在第一方向上的两端分别与所述背光模组边缘之间的第一水平距离和第二水平距离，以及获取阵列排布的多个灯板中最后一行灯板在第一方向的两端分别与所述背光模组边缘之间的第三水平距离和第四水平距离；
所述根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000002
其中Δx为多个灯板之间的水平间距，Lx为所述背光模组沿第一方向的长度，x 1为第一水平距离，x 2为第二 水平距离，x 3为第三水平距离，x 4为第四水平距离，n为阵列排布的多个灯板的列数，a为所述灯板沿第一方向的长度。
在示例性实施方式中，所述获取多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离包括：获取阵列排布的多个灯板在第一方向上的两端分别与所述背光模组边缘之间的多个第一水平距离和多个第二水平距离，计算所述多个第一水平距离的平均值得到第一水平距离的平均值，计算所述多个第二水平距离的平均值得到第二水平距离的平均值；
所述根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000003
其中，Δx为多个灯板之间的水平间距，Lx为所述背光模组沿第一方向的长度，
Figure PCTCN2023071491-appb-000004
为第一水平距离的平均值，
Figure PCTCN2023071491-appb-000005
为第二水平距离的平均值，n为阵列排布的多个灯板的列数，a为所述灯板沿第一方向的长度。
在示例性实施方式中，所述根据所述水平间距和所述混光距计算第一亮度值，通过以下公式计算得到：
Figure PCTCN2023071491-appb-000006
其中，H x为第一亮度值，k 1为第一亮度基准值，h为混光距。
在示例性实施方式中，所述计算多个灯板之间的垂直间距包括：
获取背光模组沿第二方向的长度、所述灯板沿第二方向的长度、多个灯板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离；
根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距。
在示例性实施方式中，所述获取多个灯板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离，包括：获取阵列排布的多个灯板中第一列灯板在第二方向上的两端分别与所述背光模组边缘之间的第一垂直距离和第二垂直距离，以及获取阵列排布的多个灯板中最后一列灯板在第二方向上的两端分别与所述背光模组边缘之间的第三垂直距离和第四垂直距离；
所述根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000007
其中Δy为多个灯板之间的垂直间距，Ly为所述背光模组沿第二方向的长度，y 1为第一垂直距离，y 2为第二垂直距离，y 3为第三垂直距离，y 4为第四垂直距离，n为阵列排布的多个灯板的行数，b为所述灯板沿第二方向的长度。
在示例性实施方式中，所述获取多个灯板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离，包括：获取阵列排布的多个灯板在第二方向上的两端分别与所述背光模组边缘之间的多个第一垂直距离和多个第二垂直距离，计算所述多个第一垂直距离的平均值得到第一垂直距离的平均值，计算所述多个第二垂直距离的平均值得到第二垂直距离的平均值；
所述根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000008
其中Δy为多个灯板之间的垂直间距，Ly为所述背光模组沿第二方向的长度，
Figure PCTCN2023071491-appb-000009
为第一垂直距离的平均值，
Figure PCTCN2023071491-appb-000010
为第二垂直距离的平均值，n为阵列排布的多个灯板的行数，b为所述灯板沿第二方向的长度。在示例性实施方式中，所述根据所述垂直间距和所述混光距计算第二亮度值，通过以下公式计算得到：
Figure PCTCN2023071491-appb-000011
其中，H y为第二亮度值，k 2为第二亮度基准值，h为混光距。
在示例性实施方式中，所述根据所述第一亮度值对多个灯板拼接处的亮度进行调整，包括：根据所述第一亮度值和第一预设亮度值对沿第一方向相邻灯板在第一拼接处的亮度进行调整；
所述根据所述第二亮度值对多个灯板拼接处的亮度进行调整，包括：根据所述第二亮度值和第二预设亮度值对沿第二方向相邻灯板在第二拼接处的亮度进行调整。
在示例性实施方式中，所述根据所述第一亮度值和所述第二亮度值对多个灯板拼接处的亮度进行调整，包括：
根据所述第一亮度值和所述第二亮度值计算第三亮度值；
根据所述第三亮度值对多个灯板在第三拼接处的亮度进行调整。
在示例性实施方式中，所述根据所述第一亮度值和所述第二亮度值计算第三亮度值，包括：计算所述第一亮度值和所述第二亮度值的平均值得到所述第三亮度值；
所述根据所述第三亮度值对多个灯板拼接处的亮度进行调整，包括：根据所述第三亮度值和第三预设亮度值对多个灯板在第三拼接处的亮度进行调整。
在示例性实施方式中，根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整，包括：
根据所述第一亮度值和所述第二亮度值中的至少一个调整背光模组上多个灯板拼接处背光源的亮度。
第二方面，本公开实施例还提供了一种背光亮度的调整系统，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上；所述调整系统包括：
距离计算模块，设置为计算混光距以及多个灯板之间的水平间距和垂直间距；
亮度值计算模块，设置为根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和所述混光距计算第二亮度值；
调整模块，设置为根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
第三方面，本公开实施例还提供了一种背光亮度的调整设备，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上；所述调整系统包括存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，以执行：
计算混光距以及多个灯板之间的水平间距和垂直间距；
根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和所述混光距计算第二亮度值；
根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
第四方面，本公开实施例还提供了一种非瞬态计算机可读存储介质，所述存储介质设置为存储计算机程序指令，其中，所述计算机程序指令运行时可实现上述任一实施例所述的背光亮度的调整方法。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图说明
附图用来提供对本公开技术方案的进一步理解，并且构成说明书的一部分，与本公开的实施例一起用于解释本公开的技术方案，并不构成对本公开技术方案的限制。附图中每个部件的形状和大小不反映真实比例，目的只是示意说明本公开内容。
图1所示为本公开实施例提供的背光亮度的调整方法流程图；
图2a为本公开一种示例性实施例提供的背光模组平面结构示意图；
图2b为本公开一种示例性实施例提供的背光模组平面结构示意图；
图3为本公开一种示例性实施例提供的灯板与导光板结构示意图；
图4为本公开一种示例性实施例提供的灯板拼接处的平面结构示意图；
图5为本公开一种示例性实施例提供的灯板拼接处的平面结构示意图；
图6为本公开一种示例性实施例提供的灯板拼接处的平面结构示意图；
图7为本公开一种示例性实施例提供的灯板拼接处的剖面结构示意图；
图8所示为本公开实施例提供的背光亮度的调整系统结构示意图；
图9所示为本公开实施例提供的背光亮度的调整设备结构示意图。
具体实施方式
下文中将结合附图对本公开的实施例进行详细说明。在不冲突的情况下，本公开中的实施例及实施例中的特征可以相互任意组合。
除非另外定义，本公开实施例公开使用的技术术语或者科学术语应当为本公开实施例所属领域内具有一般技能的人士所理解的通常意义。本公开实施例中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语一直出该词前面的元件或误检涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者误检。
在本说明书中，为了方便起见，使用“中部”、“上”、“下”、“前”、“后”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示方位或位置关系的词句以参照附图说明构成要素的位置关系，仅是为了便于描述本说明书和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。构成要素的位置关系根据描述每个构成要素的方向适当地改变。因此，不局限于在说明书中说明的词句，根据情况可以适当地更换。
在本说明书中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解。例如，可以是固定连接，或者可以是可拆卸连接，或一体地连接；可以是机械连接，或者可以是电连接；可以是直接相连，或者可以通过中间件间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以结合实际情况理解上述术语在本公开中的含义。
为了实现大尺寸显示效果，在很多情况下，需要将多块灯板进行拼接从而形成大尺寸的显示设备，在显示设备的混光距较小的情况下，例如采用Mini LED背光技术的情况下，Mini LED的混光距较小，对拼接组装的精度要求就比较大，在实际产品化的组装过程中，多个灯板之间的精度很难保证一致性，结构的加工会存在一定的误差，多个灯板之间的精度不一致、灯板之间的距离存在误差、灯板之间距离的远近、混光距高度的差异等都会导致在灯板拼接处产生暗纹或者亮纹的现象。
本公开实施例提供了一种背光亮度的调整方法，设置为对背光模组中灯板拼接处的亮度进行调整，背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于背光模组上，背光亮度的调整方法可以包括：
计算背光模组的混光距以及多个灯板之间的水平间距和垂直间距；
根据水平间距和混光距计算第一亮度值，根据垂直间距和混光距计算第二亮度值；
根据第一亮度值和第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
本公开实施例提供的背光亮度的调整方法，通过计算得出混光距以及多个灯板之间的水平间距和垂直间距，根据混光距与多个灯板之间的水平间距和垂直间距计算第一亮度值和第二亮度值，根据第一亮度值、第二亮度值对多个灯板拼接处的亮度进行调整，克服了因多个灯板之间的精度不一致、灯板之间的距离存在误差、灯板之间距离的远近、混光距高度的差异在灯板拼接处产生暗纹或者亮纹的缺陷。
如图1所示，本公开实施例提供的背光亮度的调整方法可以包括步骤S1-步骤S3：
步骤S1：计算背光模组的混光距以及多个灯板之间的水平间距和垂直间距；
步骤S2：根据水平间距和混光距计算第一亮度值，根据垂直间距和混光距计算第二亮度值；
步骤S3：根据第一亮度值和第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
在本公开实施例中，混光距可以称为混光距离(Optical Distance，简写为OD)，本公开实施例中，混光距是指灯板与导光板之间的垂直距离，通常情况下混光距越大，对灯板发射光束混光越充分，视觉效果会越好。
如图2a和图2b所示，背光模组101可以包括阵列排布的多个灯板102，阵列排布的多个灯板102以拼接方式设置于背光模组101上，背光模组101的边缘上可以设置多个传感器200。
在本公开实施例中，如图2a和图2b所示，背光模组101的多个灯板之间的水平间距Δx为在背光模组所在平面上相邻两个灯102在第一方向X上的间距；背光模组101的多个灯板102之间的垂直间距Δy为在背光模组101所在平面上相邻两个灯板102在第二方向Y上的间距。
在本公开实施例中，如图2a和图2b所示，背光模组101包括在第一方向X上相对设置的第一端D1和第二端D2、在第二方向Y上相对设置的第三端D3和第四端D4；背光模组101沿第一方向X的长度为第一端D1与第二端D2之间的距离；背光模组101沿第二方向Y的长度为三端D3与第四端D4之间的距离。在示例性实施方式中，步骤S1中计算多个灯板之间的水平间距可以包括步骤M11-步骤M12：
步骤M11：获取背光模组101沿第一方向X的长度Lx、灯板102沿第一方向X的长度a、多个灯板101中沿第一方向X位于两端的灯板101与背光模组101边缘之间的多个水平距离(多个水平距离中包括第一水平距离x1、第二水平距离x2、第三水平距离x3、第四水平距离x4)；
在示例性实施方式中，获取多个灯板101中沿第一方向X位于两端的灯板101与背光模组101边缘之间的多个水平距离可以通过设置于背光模组101在第一方向X两端的边缘的传感器200测量距离获取。
在示例性实施方式中，传感器200可以为距离传感器。
步骤M12：根据多个水平距离、背光模组101沿第一方向X的长度Lx、灯板102沿第一方向X的长度a计算水平间距。
在示例性实施方式中，上述步骤M11可以包括：获取阵列排布的多个灯板中第一行灯板在第一方向X上的两端分别与背光模组102边缘之间的第一水平距离x1(位于第一行、第一列的灯板靠近背光模组101第一端D1的边缘与背光模组第一端D1之间的距离)和第二水平距离x2(位于第一行、最后一列的灯板靠近背光模组101第二端D2的边缘与背光模组第二端D2之间的距离)，以及获取阵列排布的多个灯板中最后一行灯板在第一方向X的两端分别与背光模组边102缘之间的第三水平距离x3(位于最后一行、第一列的灯板靠近背光模组101第一端D1的边缘与背光模组第一端D1之间的距离)和第四水平距离x4(位于最后一行、最后一列的灯板靠近背光模组101第二端D2的边缘与背光模组第二端D2之间的距离)；
上述步骤M12中，根据多个水平距离、背光模组102沿第一方向X的长度Lx、灯板沿第一方向X的长度a计算水平间距，可以通过以下公式计 算：
Figure PCTCN2023071491-appb-000012
其中，Δx为多个灯板之间的水平间距，Lx为背光模组沿第一方向的长度，x 1为第一水平距离，x 2为第二水平距离，x 3为第三水平距离，x 4为第四水平距离，n为阵列排布的多个灯板的列数(可以理解为每行灯板的数量)，a为灯板沿第一方向的长度。
在示例性实施方式中，上述步骤M11可以包括：获取阵列排布的多个灯板102在第一方向X上的两端分别与背光模组101边缘之间的多个第一水平距离(位于第一列的多个灯板靠近背光模组101第一端D1的边缘与背光模组第一端D1之间的多个距离，可以包括x11、x12、x13)和多个第二水平距离(位于最后一列的多个灯板靠近背光模组101第二端D2的边缘与背光模组第二端D2之间的多个距离，可以包括x21、x22、x23)，计算多个第一水平距离的平均值得到第一水平距离的平均值，计算多个第二水平距离的平均值得到第二水平距离的平均值；例如，通过公式计算得到第一水平距离的平均值：
Figure PCTCN2023071491-appb-000013
其中，m为大于等于2的整数。如图2b所示，第一水平距离包括x11、x12和x13，则获取的第一水平距离的平均值可以为
Figure PCTCN2023071491-appb-000014
通过公式计算得到第二水平距离的平均值：
Figure PCTCN2023071491-appb-000015
其中，m为大于等于2的整数。如图2b所示，第二水平距离包括x21、x22和x23，则获取的第二水平距离的平均值可以为
Figure PCTCN2023071491-appb-000016
上述步骤M12中，根据多个水平距离、背光模组沿第一方向的长度、灯板沿第一方向的长度计算水平间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000017
其中，Δx为多个灯板之间的水平间距，Lx为背光模组沿第一方向的长度，
Figure PCTCN2023071491-appb-000018
为第一水平距离的平均值，
Figure PCTCN2023071491-appb-000019
为第二水平距离的平均值，n为阵列排布的多个灯板的列数，a为灯板沿第一方向的长度。
在示例性实施方式中，上述步骤S2中根据水平间距和混光距计算第一亮度值，可以通过以下公式计算得到：
Figure PCTCN2023071491-appb-000020
其中，H x为第一亮度值，k 1为第一亮度基准值，h为混光距。
在本公开实施方式中，步骤S2之前还可以包括获取第一亮度基准值；第一亮度基准值k 1可以通过步骤L11-步骤L12得到：
步骤L11：获取多组水平间距Δx、与多组水平间距Δx对应的多组混光距h以及对应的亮度值，对每组水平间距Δx与组混光距h计算比值(计算公式可以为
Figure PCTCN2023071491-appb-000021
)，获取水平间距Δx与混光距h比值为1所对应的多组第一亮度值；
步骤L12：计算多组第一亮度值的平均值得到第一亮度基准值。在示例性实施方式中，上述步骤S1中计算多个灯板之间的垂直间距可以包括步骤M21-步骤M22：
步骤M21：获取背光模组101沿第二方向Y的长度Ly、灯板102沿第二方向Y的长度b、多个灯板中沿第二方向Y位于两端的灯板102与背光模组102边缘之间的多个垂直距离；
在示例性实施方式中，获取多个灯板中沿第二方向Y位于两端的灯板102与背光模组102边缘之间的多个垂直距离可以通过设置于背板模组101在第二方向Y两端的边缘设置的传感器200获取。
步骤M22：根据多个垂直距离、背光模组101沿第二方向Y的长度、灯板102沿第二方向Y的长度b计算垂直间距。
在示例性实施方式中，上述步骤M21可以包括：获取阵列排布的多个灯板102中第一列灯板在第二方向Y上的两端分别与背光模组101边缘之间的第一垂直距y1(位于第一行、第一列的灯板靠近背光模组101第三端D3的边缘与背光模组第三端D3之间的距离)和第二垂直距离y2(位于第一列、最后一行的灯板靠近背光模组101第四端D4的边缘与背光模组第四端D4之间的距离)，以及获取阵列排布的多个灯板中最后一列灯板在第二方向Y上的两端分别与背光模组101边缘之间的第三垂直距离y3(位于最后一列、 第一行的灯板靠近背光模组101第三端D3的边缘与背光模组第三端D3之间的距离)和第四垂直距离y4(位于最后一列、最后一行的灯板靠近背光模组101第四端D4的边缘与背光模组第四端D4的距离)；
上述步骤M22中根据多个垂直距离、背光模组101沿第二方向Y的长度Ly、灯板102沿第二方向Y的长度b计算垂直间距，可以通过以下公式计算：
Figure PCTCN2023071491-appb-000022
其中，Δy为多个灯板之间的垂直间距，Ly为背光模组沿第二方向的长度，y 1为第一垂直距离，y 2为第二垂直距离，y 3为第三垂直距离，y 4为第四垂直距离，n为阵列排布的多个灯板的行数，b为灯板沿第二方向的长度。
在示例性实施方式中，上述步骤M2可以包括：获取阵列排布的多个灯板102在第二方向Y上的两端分别与背光模组101边缘之间的多个第一垂直距离(位于第一行的多个灯板靠近背光模组101第三端D3的边缘与背光模组第三端D3之间的多个距离，例如可以包括y11、y12、y13)和多个第二垂直距离(位于最后一行的多个灯板靠近背光模组101第四端D4的边缘与背光模组第四端D4之间的多个距离，例如可以包括y21、y22、y23)，计算多个第一垂直距离的平均值得到第一垂直距离的平均值，计算多个第二垂直距离的平均值得到第二垂直距离的平均值；例如，通过公式计算得到第一垂直距离的平均值：
Figure PCTCN2023071491-appb-000023
其中，m为大于等于2的整数。如图2b所示，第一垂直距离包括y11、y12和y13，则获取的第一垂直距离的平均值可以为
Figure PCTCN2023071491-appb-000024
通过公式计算得到第二垂直距离的平均值：
Figure PCTCN2023071491-appb-000025
其中，m为大于等于2的整数。如图2b所示，第二垂直距离包括y21、y22和y23，则获取的第二垂直距离的平均值可以为
Figure PCTCN2023071491-appb-000026
上述步骤M22中根据多个垂直距离、背光模组沿第二方向的长度、灯板 沿第二方向的长度计算垂直间距，通过以下公式计算：
Figure PCTCN2023071491-appb-000027
其中Δy为多个灯板之间的垂直间距，Ly为背光模组沿第二方向的长度，
Figure PCTCN2023071491-appb-000028
为第一垂直距离的平均值，
Figure PCTCN2023071491-appb-000029
为第二垂直距离的平均值，n为阵列排布的多个灯板的行数，b为灯板沿第二方向的长度。
在示例性实施方式中，上述步骤S2中根据垂直间距和所述混光距计算第二亮度值，可以通过以下公式计算得到：
Figure PCTCN2023071491-appb-000030
其中，H y为第二亮度值，k 2为第二亮度基准值，h为混光距。
在本公开实施方式中，步骤S2之前还可以包括获取第二亮度基准值；第二亮度基准值k 1可以通过步骤L21-步骤L22得到：
步骤L21：获取多组水平间距Δx、与多组水平间距Δx对应的多组混光距h以及对应的亮度值，对每组水平间距Δx与组混光距h计算比值(计算公式可以为
Figure PCTCN2023071491-appb-000031
)，获取水平间距Δx与混光距h比值为1所对应的多组第二亮度值；
步骤L22：计算多组第二亮度值的平均值得到第二亮度基准值。
在示例性实施方式中，如图3所示，背光模组101还可以包括导光板103，其中，背光模组101的混光距为在垂直于背光模组101所在平面的方向(第三方向Z方向)上，灯板102朝向导光板103一侧的表面1021与导光板103朝向灯板一侧的表面1031之间沿第三方向Z的垂直距离。上述步骤S1中计算背光模组的混光距可以包括步骤H11-步骤H12：
步骤H11：获取多个灯板102与导光板103之间的多个混光距离；
如图3所示，多个灯板102与导光板103之间的混光距离为灯板102朝向导光板103一侧的表面1021与导光板103朝向灯板一侧的表面1031之间沿第三方向Z的距离。
在示例性实施方式中，步骤H11可以包括：获取位于背光模组101沿第一方向X或第二方向Y两端的灯板与导光板之间的第一混光距离h1(图3中背光模组101靠近第一端D1的灯板与导光板之间的距离)和第二混光距 离h2(图3中背光模组101靠近第二端D2的灯板与导光板之间的距离)。
在示例性实施方式中，可以在灯板102朝向导光板103的一面1021设置距离传感器200，通过灯板102上的距离传感器200测量获取灯板102与导光板103之间的第一混光距离h1和第二混光距离h2。
步骤H12：计算多个混光距离的平均值得到混光距。
在示例性实施方式中，步骤H12中计算所述多个混光距离的平均值得到混光距，可以通过以下公式计算：
Figure PCTCN2023071491-appb-000032
其中，h为混光距，h 1为第一混光距离，h 2为第二混光距离。在示例性实施方式中，步骤S3中根据第一亮度值对多个灯板拼接处的亮度进行调整，可以包括：根据第一亮度值和第一预设亮度值对沿第一方向X相邻灯板102在第一拼接处的亮度进行调整；本公开实施例中，第一预设亮度值可以与第一预设电流值设置对应关系，第一亮度值与第一电流值可以设置对应关系(第一亮度值的每个亮度值都对应一个第一电流值)，在第一亮度值所对应的第一电流值大于第一预设电流值的情况下，将第一电流值调小到第一预设电流值，在第一亮度值所对应的第一电流值小于第一预设电流值的情况下，将第一电流值调大到第一预设电流值。如图4所示，可以根据第一亮度值和第一预设亮度值对相邻灯板102在第一拼接处M1的亮度进行调整。在本公开实施例中，在相邻灯板在第一拼接处M1出现亮纹的情况下，第一亮度值所对应的第一电流值比第一预设亮度值大，可以将相邻灯板102在第一拼接处M1的背光源的第一电流值调小到第一预设电流值；在相邻灯板102在第一拼接处M1出现暗纹的情况下，第一亮度值所对应的第一电流值比第一预设亮度值小，可以将相邻灯板102在第一拼接处M1的背光源的第一电流值调大到第一预设电流值；在相邻灯板102在第一拼接处M1未出现暗纹和亮纹的情况下，第一亮度值所对应的第一电流值与第一预设亮度值接近，相邻灯板102在第一拼接处M1的背光源的第一电流值可以不调整。
在示例性实施方式中，步骤S3中根据第二亮度值对多个灯板拼接处的亮度进行调整，可以包括：根据第二亮度值和第二预设亮度值对沿第二方向相邻灯板在第二拼接处的亮度进行调整；本公开实施例中，第二预设亮度值可以与第二预设电流值设置对应关系，第二亮度值与第二电流值可以设置对 应关系(第二亮度值的每个亮度值都对应一个第二电流值)，在第二亮度值所对应的第二电流值大于第二预设电流值的情况下，可以将第二电流值调小到第二预设电流值，在第二亮度值所对应的第二电流值小于第二预设电流值的情况下，可以将第二电流值调大到第二预设电流值。如图5所示，可以根据第二亮度值和第二预设亮度值对相邻灯板102在第二拼接处M2的亮度进行调整。在本公开实施例中，在相邻灯板在第二拼接处M2出现亮纹的情况下，第二亮度值所对应的第二电流值大于第二预设电流值，将相邻灯板第二拼接处M2的背光源的第二电流值调小到第二预设电流值；在相邻灯板102在第二拼接处M2出现暗纹的情况下，第二亮度值所对应的第二电流值比第二预设电流值小，将相邻灯板102在第二拼接处M2的背光源的第二电流值调大到第二预设电流值。
在示例性实施方式中，步骤S3中根据第一亮度值和第二亮度值对多个灯板拼接处的亮度进行调整，可以包括步骤N11-步骤N12：
步骤N11：根据第一亮度值和第二亮度值计算第三亮度值。
在示例性实施方式中，步骤N11可以包括：计算第一亮度值和第二亮度值的平均值得到第三亮度值。例如，通过公式
Figure PCTCN2023071491-appb-000033
计算第三亮度值，其中，H为第三亮度值，Hx为第一亮度值，Hy为第二亮度值。
步骤N12：根据第三亮度值对多个灯板在第三拼接处的亮度进行调整。
在示例性实施方式中，步骤N12可以包括：根据第三亮度值和第三预设亮度值对在第一方向和第二方向上相邻的多个灯板在第三拼接处的亮度进行调整；本公开实施例中，第三预设亮度值可以与第三预设电流值设置对应关系，第三亮度值与第三电流值可以设置对应关系(第三亮度值的每个亮度值都对应一个第三电流值)，在第三亮度值所对应的第三电流值大于第三预设电流值的情况下，将第三电流值调小到第三预设电流值，在第三亮度值所对应的第三电流值小于第三预设电流值的情况下，将第三电流值调大到第三预设电流值。如图6所示，可以根据第三亮度值和第三预设亮度值对灯板102在第三拼接处M3的亮度进行调整。在本公开实施例中，在多个灯板在第三拼接处M3出现亮纹的情况下，第三亮度值所对应的第三电流值小于第三预设电流值，可以将多个灯板在第三拼接处M3的背光源的第三电流值调小到 第三预设电流值；在灯板在第三拼接处M3出现暗纹的情况下，第三亮度值所对应的第三电流值比第三预设电流值小，可以将多个灯板在第三拼接处M3的背光源的第三电流值调大到第三预设电流值。
在示例性实施方式中，上述步骤S3中，根据第一亮度值和第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整，可以包括：根据第一亮度值和第二亮度值中的至少一个调整背光模组上多个灯板拼接处背光源的亮度，从而实现对灯板拼接处的亮度进行调整。如图4-图7所示中，1011为背光模组101上的背光源，例如背光源可以为背光灯。图7所示为灯板拼接处的剖面结构示意图，图7中M可以为图4中的第一拼接处M1，或者为图5中的第二拼接处M2，或者为图6中的第三拼接处M3，其中图7中夹角F为背光模组101上背光源1011光线照射区的夹角。
在本公开实施例中，灯板102上设有阵列排布的灯源，如图4至图6所示，调整第一拼接处M1的亮度可以为调整背光模组101中在第一拼接处M1背光源的亮度，第一拼接处M1的背光源可以包括在第一方向X上相邻两个灯板102中相邻两列的多个背光源中位于第一行和最后一行之间的背光源；调整第二拼接处M2的亮度可以为调整背光模组101中在第二拼接处M2背光源的亮度，第二拼接处M2的背光源可以包括在第二方向Y上相邻两个灯板102中相邻两行的多个背光源中位于第一列和最后一列之间的背光源；调整第三拼接处M3的亮度可以为调整背光模组101中在第三拼接处M3背光源的亮度，第三拼接处M3的背光源可以包括在第一方向X以及在第二方向Y上相邻的四个灯板102中位于灯板边角处的背光源。
在本公开实施例中，第一拼接处M1、第二拼接处M2和第三拼接处M3在背光模组101所在平面上的正投影不存在重叠区域。
本公开实施例还提供了一种背光亮度的调整系统，设置为对背光模组中灯板拼接处的亮度进行调整，背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于背光模组上；如图8所示，为一种背光亮度的调整系统结构示意图，调整系统可以包括：
距离计算模块11，设置为计算混光距以及多个灯板之间的水平间距和垂直间距；
亮度值计算模块12，设置为根据水平间距和混光距计算第一亮度值，根据垂直间距和混光距计算第二亮度值；
调整模块13，设置为根据第一亮度值和第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
本公开实施例还提供了一种背光亮度的调整设备，设置为对背光模组中灯板拼接处的亮度进行调整，背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于背光模组上；如图9所示，为一种背光亮度的调整设备结构示意图，调整系统包括存储器21、处理器22以及存储在存储器上并可在处理器上运行的计算机程序，以执行：
计算混光距以及多个灯板之间的水平间距和垂直间距；
根据水平间距和混光距计算第一亮度值，根据垂直间距和混光距计算第二亮度值；
根据第一亮度值和第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
本公开实施例还提供一种非瞬态计算机可读存储介质，存储介质设置为存储计算机程序指令，其中，计算机程序指令运行时可实现上述任一实施例所述的背光亮度的调整方法。
本公开实施例提供的一种背光亮度的调整方法及设备和系统、存储介质，通过计算得出混光距以及多个灯板之间的水平间距和垂直间距，根据混光距与多个灯板之间的水平间距和垂直间距计算第一亮度值和第二亮度值，根据第一亮度值、第二亮度值对多个灯板拼接处的亮度进行调整，克服了因多个灯板之间的精度不一致、灯板之间的距离存在误差、灯板之间距离的远近、混光距高度的差异在灯板拼接处产生暗纹或者亮纹的缺陷。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实 施为由处理器，如数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在设置为存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以设置为存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
本公开实施例附图只涉及本公开实施例涉及到的结构，其他结构可参考通常设计。
在不冲突的情况下，本公开的实施例即实施例中的特征可以相互组合以得到新的实施例。
虽然本公开所揭露的实施方式如上，但的内容仅为便于理解本公开而采用的实施方式，并非用以限定本公开。任何本公开所属领域内的技术人员，在不脱离本公开所揭露的精神和范围的前提下，可以在实施的形式及细节上进行任何的修改与变化，但本公开的专利保护范围，仍须以所附的权利要求书所界定的范围为准。

Claims (17)

  1. 一种背光亮度的调整方法，其特征在于，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上，所述方法包括：
    计算所述背光模组的混光距以及多个灯板之间的水平间距和垂直间距；
    根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和所述混光距计算第二亮度值；
    根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
  2. 根据权利要求1所述的调整方法，其中，所述背光模组还包括导光板，所述计算所述背光模组的混光距包括：
    获取多个所述灯板与所述导光板之间的多个混光距离；
    计算所述多个混光距离的平均值得到所述混光距。
  3. 根据权利要求2所述的调整方法，其中，所述获取多个所述灯板与所述导光板之间的多个混光距离，包括：获取位于所述背光模组沿第一方向或第二方向的两端的灯板与所述导光板之间的第一混光距离和第二混光距离；
    所述计算所述多个混光距离的平均值得到所述混光距，通过以下公式计算：
    Figure PCTCN2023071491-appb-100001
    其中，h为混光距，h 1为第一混光距离，h 2为第二混光距离。
  4. 根据权利要求1所述的调整方法，其中，所述计算多个灯板之间的水平间距包括：
    获取背光模组沿第一方向的长度、所述灯板沿第一方向的长度、多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离；
    根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距。
  5. 根据权利要求4所述的调整方法，其中，所述获取多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离包括：获取阵 列排布的多个灯板中第一行灯板在第一方向上的两端分别与所述背光模组边缘之间的第一水平距离和第二水平距离，以及获取阵列排布的多个灯板中最后一行灯板在第一方向的两端分别与所述背光模组边缘之间的第三水平距离和第四水平距离；
    所述根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距，通过以下公式计算：
    Figure PCTCN2023071491-appb-100002
    其中Δx为多个灯板之间的水平间距，Lx为所述背光模组沿第一方向的长度，x 1为第一水平距离，x 2为第二水平距离，x 3为第三水平距离，x 4为第四水平距离，n为阵列排布的多个灯板的列数，a为所述灯板沿第一方向的长度。
  6. 根据权利要求4所述的调整方法，其中，所述获取多个灯板中沿第一方向位于两端的灯板与所述背光模组边缘之间的多个水平距离包括：获取阵列排布的多个灯板在第一方向上的两端分别与所述背光模组边缘之间的多个第一水平距离和多个第二水平距离，计算所述多个第一水平距离的平均值得到第一水平距离的平均值，计算所述多个第二水平距离的平均值得到第二水平距离的平均值；
    所述根据所述多个水平距离、背光模组沿第一方向的长度、所述灯板沿第一方向的长度计算所述水平间距，通过以下公式计算：
    Figure PCTCN2023071491-appb-100003
    其中，Δx为多个灯板之间的水平间距，Lx为所述背光模组沿第一方向的长度，
    Figure PCTCN2023071491-appb-100004
    为第一水平距离的平均值，
    Figure PCTCN2023071491-appb-100005
    为第二水平距离的平均值，n为阵列排布的多个灯板的列数，a为所述灯板沿第一方向的长度。
  7. 根据权利要求5或6所述的调整方法，其中，所述根据所述水平间距和所述混光距计算第一亮度值，通过以下公式计算得到：
    Figure PCTCN2023071491-appb-100006
    其中，H x为第一亮度值，k 1为第一亮度基准值，h为混光距。
  8. 根据权利要求1所述的调整方法，其中，所述计算多个灯板之间的垂直间距包括：
    获取背光模组沿第二方向的长度、所述灯板沿第二方向的长度、多个灯 板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离；
    根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距。
  9. 根据权利要求8所述的调整方法，其中，所述获取多个灯板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离，包括：获取阵列排布的多个灯板中第一列灯板在第二方向上的两端分别与所述背光模组边缘之间的第一垂直距离和第二垂直距离，以及获取阵列排布的多个灯板中最后一列灯板在第二方向上的两端分别与所述背光模组边缘之间的第三垂直距离和第四垂直距离；
    所述根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距，通过以下公式计算：
    Figure PCTCN2023071491-appb-100007
    其中Δy为多个灯板之间的垂直间距，Ly为所述背光模组沿第二方向的长度，y 1为第一垂直距离，y 2为第二垂直距离，y 3为第三垂直距离，y 4为第四垂直距离，n为阵列排布的多个灯板的行数，b为所述灯板沿第二方向的长度。
  10. 根据权利要求8所述的调整方法，其中，所述获取多个灯板中沿第二方向位于两端的灯板与所述背光模组边缘之间的多个垂直距离，包括：获取阵列排布的多个灯板在第二方向上的两端分别与所述背光模组边缘之间的多个第一垂直距离和多个第二垂直距离，计算所述多个第一垂直距离的平均值得到第一垂直距离的平均值，计算所述多个第二垂直距离的平均值得到第二垂直距离的平均值；
    所述根据所述多个垂直距离、背光模组沿第二方向的长度、所述灯板沿第二方向的长度计算所述垂直间距，通过以下公式计算：
    Figure PCTCN2023071491-appb-100008
    其中Δy为多个灯板之间的垂直间距，Ly为所述背光模组沿第二方向的长度，
    Figure PCTCN2023071491-appb-100009
    为第一垂直距离的平均值，
    Figure PCTCN2023071491-appb-100010
    为第二垂直距离的平均值，n为阵列排布的多个灯板的行数，b为所述灯板沿第二方向的长度。
  11. 根据权利要求9或10所述的调整方法，其中，所述根据所述垂直间距和所述混光距计算第二亮度值，通过以下公式计算得到：
    Figure PCTCN2023071491-appb-100011
    其中，H y为第二亮度值，k 2为第二亮度基准值，h为混光距。
  12. 根据权利要求1所述的调整方法，其中，所述根据所述第一亮度值对多个灯板拼接处的亮度进行调整，包括：根据所述第一亮度值和第一预设亮度值对沿第一方向相邻灯板在第一拼接处的亮度进行调整；
    所述根据所述第二亮度值对多个灯板拼接处的亮度进行调整，包括：根据所述第二亮度值和第二预设亮度值对沿第二方向相邻灯板在第二拼接处的亮度进行调整。
  13. 根据权利要求1所述的调整方法，其中，所述根据所述第一亮度值和所述第二亮度值对多个灯板拼接处的亮度进行调整，包括：
    根据所述第一亮度值和所述第二亮度值计算第三亮度值；
    根据所述第三亮度值对多个灯板在第三拼接处的亮度进行调整。
  14. 根据权利要求13所述的调整方法，其中，所述根据所述第一亮度值和所述第二亮度值计算第三亮度值，包括：计算所述第一亮度值和所述第二亮度值的平均值得到所述第三亮度值；
    所述根据所述第三亮度值对多个灯板在第三拼接处的亮度进行调整，包括：根据所述第三亮度值和第三预设亮度值对多个灯板在第三拼接处的亮度进行调整。
  15. 一种背光亮度的调整系统，其特征在于，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上；所述调整系统包括：
    距离计算模块，设置为计算混光距以及多个灯板之间的水平间距和垂直间距；
    亮度值计算模块，设置为根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和所述混光距计算第二亮度值；
    调整模块，设置为根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
  16. 一种背光亮度的调整设备，其特征在于，设置为对背光模组中灯板拼接处的亮度进行调整，所述背光模组包括阵列排布的多个灯板，阵列排布的多个灯板以拼接方式设置于所述背光模组上；所述调整系统包括存储器、处理器以及存储在存储器上并可在处理器上运行的计算机程序，以执行：
    计算混光距以及多个灯板之间的水平间距和垂直间距；
    根据所述水平间距和所述混光距计算第一亮度值，根据所述垂直间距和所述混光距计算第二亮度值；
    根据所述第一亮度值和所述第二亮度值中的至少一个对多个灯板拼接处的亮度进行调整。
  17. 一种非瞬态计算机可读存储介质，所述存储介质设置为存储计算机程序指令，其中，所述计算机程序指令运行时可实现权利要求1至14中任意一项所述的背光亮度的调整方法。
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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
CN114420062B (zh) * 2022-01-30 2023-09-26 京东方科技集团股份有限公司 一种背光亮度的调整方法及设备和系统、存储介质

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060146530A1 (en) * 2004-12-30 2006-07-06 Samsung Electro-Mechanics Co., Ltd. Led backlight apparatus
JP2012043671A (ja) * 2010-08-20 2012-03-01 Nippon Shokubai Co Ltd 面状光源装置
CN103047589A (zh) * 2013-01-14 2013-04-17 四川长虹光电有限公司 直下式led背光模组设计方法
CN104848094A (zh) * 2015-05-27 2015-08-19 深圳同兴达科技股份有限公司 提升背光模组亮度均匀性的方法
CN109637459A (zh) * 2018-11-26 2019-04-16 惠州市华星光电技术有限公司 一种背光板背光亮度调节方法
CN110133914A (zh) * 2019-05-29 2019-08-16 深圳市华星光电半导体显示技术有限公司 一种背光结构及其制作方法、显示装置
CN113160757A (zh) * 2021-03-03 2021-07-23 华源智信半导体(深圳)有限公司 mini-LED拼接背光装置的亮度处理方法及系统、自动亮度处理系统
CN113820885A (zh) * 2020-06-18 2021-12-21 京东方科技集团股份有限公司 一种曲面背光模组及显示装置
CN114420062A (zh) * 2022-01-30 2022-04-29 京东方科技集团股份有限公司 一种背光亮度的调整方法及设备和系统、存储介质

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103017040A (zh) * 2012-12-14 2013-04-03 京东方科技集团股份有限公司 一种背光源及显示装置
CN103629603A (zh) * 2013-12-16 2014-03-12 中航华东光电有限公司 高亮度宽色域直下式背光模块及应用该模块的液晶显示器
CN105068315B (zh) * 2015-09-01 2019-05-31 深圳Tcl新技术有限公司 蓝光led直下式背光模组和液晶显示屏
CN108665866B (zh) * 2018-05-18 2021-03-16 京东方科技集团股份有限公司 获取背光源扩散传输参数的方法及显示控制方法和装置
CN108831386B (zh) * 2018-06-27 2020-06-30 京东方科技集团股份有限公司 背光模组及其控制方法、拼接显示装置及其背光控制方法、显示模组
CN110187563B (zh) * 2019-06-27 2022-02-18 厦门天马微电子有限公司 一种背光模组、显示模组及显示装置
CN111128081B (zh) * 2019-12-31 2021-10-01 深圳Tcl数字技术有限公司 电视背光调节方法、装置、设备及计算机可读存储介质
CN212341647U (zh) * 2020-07-08 2021-01-12 江苏毅昌科技有限公司 一种背光模组及显示装置
CN111915982A (zh) * 2020-08-17 2020-11-10 上海中航光电子有限公司 一种背光模组以及显示装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060146530A1 (en) * 2004-12-30 2006-07-06 Samsung Electro-Mechanics Co., Ltd. Led backlight apparatus
JP2012043671A (ja) * 2010-08-20 2012-03-01 Nippon Shokubai Co Ltd 面状光源装置
CN103047589A (zh) * 2013-01-14 2013-04-17 四川长虹光电有限公司 直下式led背光模组设计方法
CN104848094A (zh) * 2015-05-27 2015-08-19 深圳同兴达科技股份有限公司 提升背光模组亮度均匀性的方法
CN109637459A (zh) * 2018-11-26 2019-04-16 惠州市华星光电技术有限公司 一种背光板背光亮度调节方法
CN110133914A (zh) * 2019-05-29 2019-08-16 深圳市华星光电半导体显示技术有限公司 一种背光结构及其制作方法、显示装置
CN113820885A (zh) * 2020-06-18 2021-12-21 京东方科技集团股份有限公司 一种曲面背光模组及显示装置
CN113160757A (zh) * 2021-03-03 2021-07-23 华源智信半导体(深圳)有限公司 mini-LED拼接背光装置的亮度处理方法及系统、自动亮度处理系统
CN114420062A (zh) * 2022-01-30 2022-04-29 京东方科技集团股份有限公司 一种背光亮度的调整方法及设备和系统、存储介质

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