Display device and brightness adjustment method of backlight source thereof

Abstract

The display device and the brightness adjustment method of the backlight source thereof provided by the present disclosure belong to the technical field of display. The display device comprises a processor and a backlight source with multiple backlight partitions. The processor can display a first brightness adjustment control based on an adjustment starting instruction, and can adjust the brightness of multiple light emitting elements included in a target partition in the multiple backlight partitions according to a touch operation received for the first brightness adjustment control. Thus, compared with the current display device which can only adjust the overall brightness of the backlight source, the display device provided by the present disclosure has better flexibility in adjusting the brightness of the backlight source.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a display device and a brightness adjustment method of a backlight source thereof. BACKGROUND

[0002] Mini light emitting diodes (mini LEDs) gradually become the market mainstream due to their self-luminous, high brightness, and small size, etc. At present, they are usually applied in liquid crystal display (LCD) panels and used as backlight sources. That is, an LCD panel generally includes a display screen, a mini LED backlight source located at one side of the display screen, and a backlight source driving circuit. The backlight source driving circuit is connected with the mini LED backlight source and is used to transmit a driving current to the mini LED backlight source to drive the backlight source to emit light, so that the display screen displays a picture. Moreover, the brightness of the light emitted by the backlight source is positively correlated with the size of the driving current, that is, the brightness of the light emitted by the backlight source can be adjusted by adjusting the driving current.

[0003] However, at present, only the overall brightness of the backlight source can be adjusted, and the brightness of the partial area of the backlight source cannot be adjusted, and the flexibility of the brightness adjustment is poor. SUMMARY

[0004] The embodiments of the present disclosure provide a display device and a brightness adjustment method of a backlight source thereof, which can solve the problem of poor flexibility of brightness adjustment in the related art, and the technical solution is as follows:

[0005] In one aspect, a display device is provided, which includes a processor and a backlight source, the backlight source having a plurality of backlight partitions, each of the backlight partitions including a plurality of light emitting elements;

[0006] The processor is connected with the backlight source, and the processor is configured to:

[0007] In response to an adjustment start instruction, display a touch control control, the touch control control including a first brightness adjustment control;

[0008] According to a first touch operation received for the first brightness adjustment control, determine a first brightness adjustment amount;

[0009] Determine a target partition to be adjusted in the plurality of backlight partitions;

[0010] Adjust the brightness of the plurality of light emitting elements in the target partition according to the first brightness adjustment amount.

[0011] Optionally, the display device further includes a display screen, the processor is further connected with the display screen, and the processor is configured to:

[0012] In response to the adjustment starting instruction, display a touch control on the display screen.

[0013] Optionally, the backlight source comprises a plurality of lamp panels spliced together, each of the lamp panels having at least two backlight sub-zones.

[0014] Optionally, each of the lamp panels has a first backlight sub-zone and a second backlight sub-zone, the first backlight sub-zone being adjacent to a seam between the two lamp panels and being located between the seam and the second backlight sub-zone.

[0015] Optionally, each of the lamp panels further has a third backlight sub-zone and a fourth backlight sub-zone.

[0016] The first, second and third backlight sub-zones are arranged in a first direction in sequence, and the second and fourth backlight sub-zones are arranged in a second direction in sequence.

[0017] The first direction intersects the second direction.

[0018] Optionally, in the first direction, the first backlight sub-zone of one of the two lamp panels is adjacent to the third backlight sub-zone of the other of the two lamp panels.

[0019] In the second direction, the fourth backlight sub-zone of one of the two lamp panels is adjacent to the fourth backlight sub-zone of the other of the two lamp panels.

[0020] Optionally, each of the backlight sub-zones has a plurality of sub-zones, each of the sub-zones comprising at least one light emitting element.

[0021] The processor is further configured to independently control the brightness of the light emitting elements in each of the sub-zones.

[0022] Optionally, the display device further comprises a diffusion plate located on the side of the backlight source away from the substrate, the diffusion plate being configured to diffuse the light emitted by the backlight source.

[0023] The first distance between the lamp panels and the diffusion plate in the backlight source comprising a plurality of spliced lamp panels is greater than 0 and less than or equal to 6 mm.

[0024] Optionally, the ratio of the second distance between each of the two adjacent lamp panels to the first distance is greater than or equal to 1.2 and less than or equal to 8.

[0025] The second distance is the distance between the light emitting element on one of the two adjacent lamp panels close to the seam and the light emitting element on the other of the two adjacent lamp panels close to the seam.

[0026] Optionally, the light emitting element comprises a mini light emitting diode (mini LED).

[0027] Optionally, the first brightness adjustment control comprises a plurality of brightness adjustment sub-controls corresponding to the plurality of backlight partitions one by one; the first touch operation is a click operation on a target sub-control in the plurality of brightness adjustment sub-controls; and the processor is configured to:

[0028] determine a first brightness adjustment amount according to the received click operation on the target sub-control;

[0029] determine a target partition to be adjusted according to the received click operation on the target sub-control, the target partition being a backlight partition corresponding to the target sub-control in the plurality of backlight partitions.

[0030] Optionally, each of the brightness adjustment sub-controls comprises a first brightness increase sub-control and a first brightness decrease sub-control; and the processor is configured to:

[0031] determine a first brightness increase amount according to the received click operation on the first brightness increase sub-control;

[0032] determine a first brightness decrease amount according to the received click operation on the first brightness decrease sub-control.

[0033] Optionally, the display screen of the display device has a plurality of display areas corresponding to the plurality of backlight partitions one by one, and the brightness adjustment sub-control corresponding to each of the backlight partitions is located in the display area corresponding to the backlight partition.

[0034] Optionally, the touch control further comprises a second brightness adjustment control; and the processor is further configured to:

[0035] determine a second brightness adjustment amount according to a second touch operation on the second brightness adjustment control;

[0036] adjust the brightness of the plurality of light emitting elements in each of the backlight partitions according to the second brightness adjustment amount.

[0037] Optionally, the second touch operation is a click operation on the second brightness adjustment control; the second brightness adjustment control comprises a second brightness increase sub-control and a second brightness decrease sub-control; and the processor is configured to:

[0038] determine a second brightness increase amount according to the received click operation on the second brightness increase sub-control;

[0039] determine a second brightness decrease amount according to the received click operation on the second brightness decrease sub-control.

[0040] Optionally, the touch control further comprises a display brightness resetting control; and the processor is further configured to:

[0041] According to a third touch operation received for the brightness resetting control, reset the brightness of each of the plurality of light emitting elements in each of the backlight partitions to a reference brightness.

[0042] Optionally, the touch control further comprises a display screen switching control; and the processor is further configured to:

[0043] According to a fourth touch operation received for the screen switching control, control the display screen of the display device to switch to display screens of different colors.

[0044] Optionally, the screen switching control comprises a first switching sub-control and a second switching sub-control; and the processor is configured to:

[0045] According to a fourth touch operation received for the first switching sub-control, control the display screen to switch to display screens of different colors in a first switching order;

[0046] According to a fourth touch operation received for the second switching sub-control, control the display screen to switch to display screens of different colors in a second switching order;

[0047] The first switching order and the second switching order are opposite in color switching direction.

[0048] Optionally, the touch control further comprises a burn-in saving control; the display device further comprises a first driving circuit and a second driving circuit; the processor is further connected with the first driving circuit, the first driving circuit is further connected with the second driving circuit, and the second driving circuit is further connected with the backlight source; and the processor is further configured to:

[0049] According to a fifth touch operation received for the burn-in saving control, burn in and store the brightness adjusted according to the first brightness adjustment amount into the first driving circuit;

[0050] The first driving circuit is configured to control the second driving circuit to transmit a driving current to the backlight source to drive the plurality of light emitting elements in the backlight source to emit light according to the stored brightness.

[0051] Optionally, the touch control further comprises a brightness reading control; and the processor is further configured to:

[0052] According to a sixth touch operation received for the brightness reading control, display the brightness stored in the first driving circuit.

[0053] Optionally, the display device further comprises a luminance sensor, the luminance sensor is located at one side of the backlight source and connected with the first driving circuit.

[0054] The luminance sensor is configured to detect luminance of the plurality of light emitting elements and transmit the detected luminance to the first driving circuit.

[0055] The first driving circuit is further configured to control the second driving circuit to correct the driving current transmitted to the backlight source based on the luminance transmitted by the luminance sensor.

[0056] In another aspect, a method for adjusting luminance of a backlight source in a display device is provided, the backlight source has a plurality of backlight sub-zones, each of the backlight sub-zones comprises a plurality of light emitting elements; the method comprises:

[0057] In response to an adjustment starting instruction, a touch control control is displayed, the touch control control comprises a first luminance adjustment control.

[0058] According to a first touch operation received for the first luminance adjustment control, a first luminance adjustment amount is determined.

[0059] A target sub-zone to be adjusted in the plurality of backlight sub-zones is determined.

[0060] The luminance of the plurality of light emitting elements in the target sub-zone is adjusted according to the first luminance adjustment amount.

[0061] In yet another aspect, a computer readable storage medium is provided, the computer readable storage medium stores a computer program, the computer program is loaded and executed by a processor to implement the method for adjusting luminance of a backlight source in a display device as described in the above aspects.

[0062] In summary, the technical solutions provided by the embodiments of the present disclosure can bring at least the following beneficial effects:

[0063] A display device and a method for adjusting luminance of a backlight source of the display device are provided. The display device comprises a processor and a backlight source having a plurality of backlight sub-zones. The processor can display a first luminance adjustment control based on an adjustment starting instruction, and can adjust the luminance of a plurality of light emitting elements included in a target sub-zone in the plurality of backlight sub-zones according to a touch operation received for the first luminance adjustment control. Thus, compared with the current method for adjusting the overall luminance of the backlight source, the display device provided by the embodiments of the present disclosure has better flexibility in adjusting the luminance of the backlight source. BRIEF DESCRIPTION OF DRAWINGS

[0064] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on these drawings.

[0065] Figure 1 is a structural schematic diagram of a display device provided by an embodiment of the present application;

[0066] Figure 2 is a structural schematic diagram of a backlight provided by an embodiment of the present application;

[0067] Figure 3 is a structural schematic diagram of a single lamp plate in a backlight provided by an embodiment of the present application;

[0068] Figure 4 is a backlight partition schematic diagram of a backlight provided by an embodiment of the present application;

[0069] Figure 5 is another backlight partition schematic diagram of a backlight provided by an embodiment of the present application;

[0070] Figure 6 is still another backlight partition schematic diagram of a backlight provided by an embodiment of the present application;

[0071] Figure 7 is a mesh schematic diagram of a single lamp plate in a backlight provided by an embodiment of the present application;

[0072] Figure 8 is a structural schematic diagram of another display device provided by an embodiment of the present application;

[0073] Figure 9 is a display interface schematic diagram of a display screen including a backlight provided by an embodiment of the present application;

[0074] Figure 10 is a different color switching picture schematic diagram provided by an embodiment of the present application;

[0075] Figure 11 is a structural schematic diagram of another display device provided by an embodiment of the present application;

[0076] Figure 12 is a display interface schematic diagram of another display screen provided by an embodiment of the present application;

[0077] Figure 13 is a structural schematic diagram of still another display device provided by an embodiment of the present application;

[0078] Figure 14is a backlight brightness adjustment method flowchart provided by an embodiment of the present disclosure.

[0079] Figure 15 is another backlight brightness adjustment method flowchart provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0080] In order to make the purposes, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below with reference to the drawings.

[0081] Figure 1 is a structural schematic diagram of a display device provided by an embodiment of the present disclosure. As shown in the figure, the display device comprises a processor 01 and a backlight 02. Figure 1

[0082] The backlight 02 has a plurality of backlight partitions A1 (2 are shown in the figure), that is, the backlight 02 can be divided into a plurality of partitions in advance. Each backlight partition A1 can comprise a plurality of light emitting elements L1.

[0083] Optionally, the backlight 02 can be a mini LED backlight, and correspondingly, the light emitting element L1 can be a mini LED. The mini LED can also be referred to as a sub-millimeter light emitting diode, and the size is generally between 50 microns (μm) and 500 μm, that is, greater than or equal to 50 μm and less than or equal to 500 μm. Continuing to refer to Figure 1 The processor 01 can be connected with the backlight 02, and the processor 01 can be used to perform the following operations:

[0084] (1) In response to an adjustment start instruction, a touch control is displayed.

[0085] The touch control can comprise a first brightness adjustment control. That is, first, when a user wants to adjust the brightness of the backlight 02, he / she can trigger the display device to enter a backlight brightness adjustment state by operations such as touch control or voice control. At this time, the processor 01 can receive an adjustment start instruction, and can further display a first brightness adjustment control J1 as shown in the figure for the user to touch. Figure 1

[0086] For example, an entity button for starting to adjust the brightness can be provided on the display device, or a touch button for starting to adjust the brightness can be displayed on the display screen 03 of the display device. The user can trigger the display device to enter the backlight brightness adjustment state by clicking the button, so that the processor 01 receives the adjustment start instruction. The present disclosure does not limit the way of triggering the adjustment start instruction. The clicking operation described in the present disclosure can comprise single clicking, double clicking or long pressing, and the following embodiments will not be described again.

[0087] ​​(2) According to the received first touch operation for the first brightness adjustment control, a first brightness adjustment amount is determined.

[0088] Then, the user can perform a touch operation for the displayed first brightness adjustment control J1, which is also referred to as a first touch operation. At this time, the processor 01 can receive the first touch operation, and can determine a first brightness adjustment amount for adjusting the brightness based on the first touch operation.

[0089] (3) A target sub-area to be adjusted in the plurality of backlight sub-areas is determined.

[0090] In addition, the processor 01 can also determine a target sub-area that needs to adjust the brightness from the plurality of backlight sub-areas A1 possessed by the backlight source 02 in advance. For example, the processor 01 can pre-store a default backlight sub-area A1 to be adjusted, and on this basis, the processor 01 can determine the default backlight sub-area A1 as the target sub-area.

[0091] (4) The brightness of the plurality of light emitting elements in the target sub-area is adjusted according to the first brightness adjustment amount.

[0092] Finally, the processor 01 can adjust the brightness of the plurality of light emitting elements L1 in the pre-determined target sub-area according to the pre-determined first adjustment amount, so as to realize the brightness adjustment of any backlight sub-area in the plurality of backlight sub-areas A1.

[0093] In summary, the display device provided by the embodiment of the present disclosure includes a processor and a backlight source with a plurality of backlight sub-areas. The processor can display a first brightness adjustment control based on an adjustment starting instruction, and can adjust the brightness of the plurality of light emitting elements included in a target sub-area in the plurality of backlight sub-areas according to a received touch operation for the first brightness adjustment control. Thus, compared with the current display device that can only adjust the overall brightness of the backlight source, the display device provided by the embodiment of the present disclosure has better flexibility in adjusting the brightness of the backlight source.

[0094] Optionally, continuing to refer to Figure 1 It can be seen that the display device can also generally include a display screen 03, and the processor 01 can also be connected with the display screen 03. On this basis, the processor 01 can be used to display a touch control on the display screen 03 in response to the received adjustment starting instruction, such as the first brightness adjustment control J1 shown in the figure. The following embodiments are all described by taking the display of the touch control on the display screen 03 as an example. In addition, the display screen 03 can be an LCD display screen, which can also be referred to as an LCD panel. Figure 1

[0095] ​Of course, in some embodiments, the display device can also be externally connected to a control device (such as a mobile terminal), and the processor can be connected to the control device and used to display the touch control on the display screen of the control device in response to the received adjustment start instruction. The display position of the touch control is not limited in the embodiments of the present disclosure.

[0096] Optionally, Figure 2 is a structural schematic diagram of a backlight source provided by the embodiments of the present disclosure. Referring to Figure 2 It can be seen that the backlight source 02 described in the embodiments of the present disclosure can include a plurality of lamp panels 021, and each lamp panel 021 can have at least two backlight sub-zones A1. That is, Figure 1 The plurality of backlight sub-zones A1 of the backlight source 02 can actually correspond to the plurality of lamp panels 021, and each lamp panel 021 can include a plurality of light emitting elements L1. It should be noted that on the basis of the backlight source 02 being a mini LED backlight source, the lamp panel 021 can also be referred to as a mini LED lamp panel. In addition, the backlight source 02 formed by splicing a plurality of lamp panels 021 is usually applied to a large-size LCD panel, such as a 65-inch LCD panel.

[0097] In addition, the plurality of lamp panels 021 can be arranged in an array, that is, the backlight source 02 can include a plurality of rows and a plurality of columns of lamp panels 021. In addition, the plurality of light emitting elements L1 included in each lamp panel 021 can also be arranged in an array, that is, each lamp panel 021 can include a plurality of rows and a plurality of columns of light emitting elements L1. The light emitting element row direction can be the same as the lamp panel row direction, and the light emitting element column direction can also be the same as the lamp panel column direction. Of course, in some other embodiments, the plurality of lamp panels 021 and / or the plurality of light emitting elements L1 can also be arranged only in rows, or only in columns, or irregularly arranged, and the arrangement manner is not limited in the embodiments of the present disclosure.

[0098] For example, Figure 2 The backlight source 02 shown includes 8 lamp panels 021, Figure 2 labeled as lamp panel 021-1 to lamp panel 021-8, respectively. And, Figure 2 The 8 lamp panels 021 shown are arranged in a manner of 2 rows and 4 columns. On Figure 2 the basis of Figure 3 a structural schematic diagram of the lamp panel 021-1 is shown. Referring to Figure 3 It can be seen that the lamp panel 021-1 includes 56 rows and 48 columns of light emitting elements L1.

[0099] Optionally, on the basis of the plurality of lamp panels 021 being spliced, a splicing seam will naturally be formed between adjacent lamp panels 021, that is, a gap formed by splicing. That is, referring to Figure 2 , each of the plurality of lamp panels 021 described in the embodiments of the present disclosure can have a splicing seam f1 between each adjacent two lamp panels 021.

[0100] Optional, combined Figure 4 As shown in the schematic diagrams of lamp panels 021-1 and 021-2, each lamp panel 021 described in this embodiment of the present disclosure may have two backlight zones A1: a first backlight zone A1-1 and a second backlight zone A1-2. The first backlight zone A1-1 may be adjacent to the seam f1 and located between the seam f1 and the second backlight zone A1-2. That is, the first backlight zone A1-1 is closer to the seam f1 than the second backlight zone A1-2.

[0101] Optional, combined Figure 5 As shown in the schematic diagram of the structure of the lamp panel 021-1, each lamp panel 021 described in this embodiment may also have a third backlight zone A1-3 and a fourth backlight zone A1-4 in addition to the first backlight zone A1-1 and the second backlight zone A1-2. That is, each lamp panel 021 described in this embodiment may have four backlight zones A1.

[0102] The first backlight partition A1-1, the second backlight partition A1-2, and the third backlight partition A1-3 can be arranged sequentially along the first direction X, and the second backlight partition A1-2 and the fourth backlight partition A1-4 can be arranged sequentially along the second direction Y. Optionally, based on the array arrangement of multiple lamp panels 021, the first direction X can be considered as the row direction of the lamp panels, and the second direction Y can be considered as the column direction of the lamp panels.

[0103] Optional, from Figure 5 It can also be seen that the fourth backlight zone A1-4 and the first backlight zone A1-1 can also be considered to be arranged sequentially along the second direction Y, and the fourth backlight zone A1-4 and the third backlight zone A1-3 can also be considered to be arranged sequentially along the second direction Y. That is, for Figure 4 In the illustrated structure, the first backlight partition A1-1 and the third backlight partition A1-3 can be considered to be located to the left and right of the second backlight partition A1-2, respectively, and are adjacent to (i.e., adjacent and in contact) the second backlight partition A1-2. The fourth backlight partition A1-4 can be considered to be located below the entire partition composed of the second backlight partition A1-2, the first backlight partition A1-1, and the third backlight partition A1-3, and is adjacent to all three. The second backlight partition A1-2 has the largest area. Of course, in some embodiments, the fourth backlight partition A1-4 may be arranged sequentially along the second direction Y with only the second backlight partition A1-2, while the first backlight partition A1-1, the entire partition composed of the fourth backlight partition A1-4 and the second backlight partition A1-2, and the third backlight partition A1-3 may be arranged along the first direction X.

[0104] Combined Figure 3The light emitting elements L1 located in the first row to the 54th row and in the first column and the second column can be divided into the backlight sub-area A1-1; the light emitting elements L1 located in the first row to the 54th row and in the 47th column and the 48th column can be divided into the backlight sub-area A1-3; the light emitting elements L1 located in the 55th row and the 56th row and in the first column to the 48th column can be divided into the backlight sub-area A1-4; and the remaining light emitting elements L1 (i.e., the light emitting elements L1 located in the first row to the 54th row and in the third column and the 46th column) can be divided into the backlight sub-area A1-4. The division manner is merely illustrative and is not limited.

[0105] On the basis of Figure 5 , Figure 6 it is shown Figure 2 that in the backlight 02, the lamp panel 021-1, the lamp panel 021-2, the lamp panel 021-5 and the lamp panel 021-6 are shown in the schematic structural diagram. Referring to Figure 6 it can be seen that in each two adjacent lamp panels 021 (such as the lamp panel 021-1 and the lamp panel 021-2) in the first direction X, the first backlight sub-area A1-1 of one lamp panel can be adjacent to the third backlight sub-area A1-3 of the other lamp panel. In each two adjacent lamp panels 021 (such as the lamp panel 021-1 and the lamp panel 021-5) in the second direction Y, the fourth backlight sub-area A1-4 of one lamp panel can be adjacent to the fourth backlight sub-area A1-4 of the other lamp panel. That is, of the four backlight sub-areas A1 of each lamp panel 021, the fourth backlight sub-area A1-4 is adjacent to the joint f1 extending in the first direction X, and the first backlight sub-area A1-1 or the third backlight sub-area A1-3 is adjacent to the joint f1 extending in the second direction Y.

[0106] Optionally, in order to independently drive each lamp panel 021 to emit light, at least one driving integrated circuit (IC) can be arranged on one side of each lamp panel 021, and the driving IC is connected with the control circuit of the host end and the light emitting element L1 on the lamp panel 021, so as to transmit driving current to the light emitting element L1 under the driving of the control circuit, thereby driving the light emitting element L1 to emit light, that is, driving the lamp panel 021 to emit light. The control circuit is referred to as a first driving circuit, and the driving IC is referred to as a second driving circuit in the following embodiments, and the first driving circuit and the second driving circuit can be collectively referred to as a backlight driving circuit.

[0107] Optionally, each backlight sub-area A1 can actually have a plurality of sub-areas, and each sub-area can include at least one light emitting element L1, and the driving IC can separately provide driving current to the light emitting elements L1 of each sub-area, so as to achieve the purpose of local dimming. In other words, the processor 01 can also be used to independently control the brightness of the light emitting elements in each sub-area.

[0108] As shown in Figure 2 and Figure 5 Take the lamp panel 021-1 as an example, Figure 7 a netlist diagram of a single lamp panel 021-1 is also shown. Referring to Figure 7 It can be seen that every 4 mini LEDs (e.g., 1-1L1, 2-1L1, 3-1L1 and 4-1L1) can form a group and are located in a sub-zone, Figure 7 The lamp panel 021-1 shown includes a total of 672 groups. Corresponding to Figure 5 It can be seen that the first backlight sub-zone A1-1 corresponds to the area where 1-1L1 to 3-7L1 are located; the fourth backlight sub-zone A1-4 corresponds to the area where 4-7L1 to 4-7L24 are located; the third backlight sub-zone A1-3 corresponds to the area where 1-1L24 to 3-7L24 are located; and the second backlight sub-zone A1-2 corresponds to the remaining area.

[0109] It should be noted that Figures 2 to 7 are only schematic illustrations. In some other embodiments, the backlight 02 can also include a larger or smaller number of lamp panels 021. Each lamp panel 021 can also have a larger or smaller number of backlight sub-zones A1. Each lamp panel 021 can also include a larger or smaller number of light emitting elements L1. In addition, the netlist of a single lamp panel can also be in other forms. The above parameters are not limited in the embodiments of the present disclosure.

[0110] During the process of assembling the lamp panels 021 to form the backlight 02, the actual measured value of the inter-panel distance of two adjacent lamp panels 021 often deviates from the ideal design value due to the effects of tolerance accumulation and / or poor positioning accuracy, thereby causing abnormal light emitting brightness of the light emitting elements L1 near the position of the joint f1, and further causing poor display effect of the LCD panel. The inter-panel distance refers to the distance between the light emitting element L1 near the joint f1 on one of the two adjacent lamp panels 021 and the light emitting element near the joint f1 on the other lamp panel 021.

[0111] Take the lamp panel 021-1 and the lamp panel 021-2 in Figure 2 as an example, in combination with Figure 3 and Figure 6Under the influence of tolerance accumulation and / or poor positioning accuracy, the spacing between the light emitting elements L1 in the third backlight sub-area A1-3 of the lamp panel 021-1 and the light emitting elements L1 in the first backlight sub-area A1-1 of the lamp panel 021-2 will deviate, which will further cause the light emitting brightness of the light emitting elements L1 in the third backlight sub-area A1-3 of the lamp panel 021-1 and the light emitting elements L1 in the first backlight sub-area A1-1 of the lamp panel 021-2 to be abnormal, and thus the display effect of the LCD panel will be abnormal. For example, a vertical dark line (i.e., low brightness) or a vertical bright line (i.e., high brightness) will appear between the third backlight sub-area A1-3 of the lamp panel 021-1 and the first backlight sub-area A1-1 of the lamp panel 021-2. It should be noted that the above display abnormality problem is particularly obvious under a low optical distance (OD) condition, where the optical distance OD refers to the spacing between the lamp panel 021 included in the backlight 02 and the diffusion plate included in the display device, which is generally a vertical distance. The low optical distance refers to an optical distance greater than 0 and less than or equal to 6 millimeters (mm).

[0112] For example, it is tested that, under the test condition that the 65-inch LCD panel has an optical distance of 5 mm, the diameter tolerance of the positioning column used to calibrate the distance between adjacent lamp panels 021 is generally about ±0.1 mm, and the distance tolerance between each two adjacent positioning columns is also about ±0.1 mm. In the lamp panel row direction X, if the panel-to-panel distance between each two adjacent lamp panels 021 can be controlled to be 6.8 mm, 6.9 mm, or 7 mm, the light emitting brightness of the light emitting elements L1 in each backlight sub-area A1 of the backlight 02 is normal, and the display effect of the LCD panel is normal. If the panel-to-panel distance between each two adjacent lamp panels 021 is between 6.6 mm and 6.7 mm, the LCD panel will have a bright line abnormality; and if the panel-to-panel distance between each two adjacent lamp panels 021 is 7.1 mm, the LCD panel will have a dark line abnormality. It can also be seen from the test result that a slight change in the spacing will cause the LCD panel to have a display abnormality problem.

[0113] In addition, it is tested that the driving circuit actually output by each driving IC in the embodiments described above will have a difference of generally about ±3% when actually working. This difference, like the above seam spacing, will also cause a brightness difference between each lamp panel, and a color difference in the display effect of the LCD panel in the visual sense of the human eye.

[0114] In the embodiments of the present disclosure, however, the brightness of the light emitting elements L1 in each backlight sub-area A1 is independently and flexibly adjusted, which can solve the problem of poor display effect caused by the above seam spacing or current difference, and ensure that the display effect of the LCD panel is good. For example, the uniformity of the display picture of the LCD panel is good.

[0115] In addition, as described in the above embodiments, the backlight 02 can be combined withFigure 8 The display device may also include a diffuser plate B1 located on the side of the backlight 02 away from the substrate 01, which can be used to diffuse the light emitted by the backlight 02. Furthermore, the first distance d1 between the lamp plate 021 included in the backlight 02 and the diffuser plate B1 can be greater than 0 and less than or equal to 6 mm, i.e., between 0 and 6 mm. The first distance d1 is the light mixing distance OD described in the above embodiment.

[0116] Based on this, the ratio of the second spacing d2 to the first spacing d1 between any two adjacent light panels 021 (i.e., d2 / d1) can be greater than or equal to 1.2 and less than or equal to 8, that is, between 1.2 and 8. Here, the second spacing d2 is the distance between the light-emitting element L1 on one light panel 021 near the seam f1 and the light-emitting element L1 on the other light panel 021 near the seam f1, in any two adjacent light panels 021 with a seam. In other words, the second spacing d2 is the inter-panel distance between any two adjacent light panels 021 as described in the above embodiment.

[0117] In other words, the light mixing distance OD can be between 0-6mm, and the inter-board distance can be between 4mm-8mm. For example, the light mixing distance OD can be set to 5mm, and the inter-board distance can be set to 7mm. Based on the above spacing settings, testing has verified that this can also improve the brightness of the backlight 02 to a certain extent, ensuring a better display effect for the display device.

[0118] Of course, in some embodiments, machine vision positioning and detection technology can be used to accurately position each lamp board 021 when assembling the lamp board 021 to form the backlight 02, ensuring that the inter-board distance between adjacent lamp boards 021 at the seam f1 can be strictly controlled according to the design value, thereby ensuring a good display effect of the LCD panel. However, machine vision positioning and detection technology requires expensive positioning equipment, resulting in high costs; the positioning process is also time-consuming and inefficient; and because the lamp boards need to be glued with adhesive during positioning, the maintainability is poor; furthermore, it cannot solve the color difference problem caused by current differences, thus limiting its application scenarios.

[0119] In the above Figures 2 to 7 Based on this, continue to refer to Figure 9It can be seen that the first brightness adjustment control J1 disclosed in the embodiments of the present disclosure can include a plurality of brightness adjustment sub-controls J11 corresponding to the plurality of backlight partitions A1. For example, for each lamp panel 021, the four backlight partitions A1-1 to A1-4 thereof can each correspond to a brightness adjustment sub-control J11. In addition, the first touch operation can be a click operation (such as a single click, double click, or long press) on a target sub-control in the plurality of brightness adjustment sub-controls J11. Of course, in some other embodiments, the first touch operation can also be a click operation on the brightness adjustment sub-control J11, and an operation of inputting a specific brightness. The embodiments of the present disclosure do not limit the manner of the first touch operation.

[0120] In addition, referring to Figure 9 It can also be seen that the display screen 03 can have a plurality of display regions B1 corresponding to the plurality of backlight partitions A1, and the brightness adjustment sub-control J11 corresponding to each backlight partition A1 can be located in the display region B1 corresponding to the backlight partition A1. In addition, each display region B1 can be provided with backlight by the corresponding backlight partition A1. For each display region B1, the backlight provided by the corresponding backlight partition A1 can mean that the backlight is only provided by the unique corresponding backlight partition A1, or the backlight is provided by the unique corresponding backlight partition A1 and the backlight diffusion light rays provided by the adjacent display region B1 corresponding backlight partition A1. In this way, the user can reliably observe which backlight partition A1 has a brightness abnormality, and quickly and reliably click the brightness adjustment sub-control J11 displayed on the display region B1 where the backlight partition A1 is located, so as to flexibly adjust the brightness of the light emitting element L1 in the backlight partition A1, thereby improving the user experience. Of course, in some other embodiments, the backlight partitions A1 of each lamp panel 021 and the corresponding brightness adjustment sub-controls J11 can also be displayed in the form of a table on the display screen 03. In addition, referring to Figure 9 It can also be seen that, on the basis of displaying the above content, the processor 01 can also display the current brightness (such as 127) of each backlight partition A1 on the display screen 03, so as to be viewed by the user.

[0121] In Figure 9 On the basis of the structure shown, the processor 01 disclosed in the embodiments of the present disclosure can be used to determine a first brightness adjustment amount according to the received click operation on the target sub-control.

[0122] Optionally, the processor 01 can be used to acquire the number of click operations on the target sub-control, and flexibly determine the first brightness adjustment amount according to the number.

[0123] For example, assuming that the brightness adjustment amount of the target sub-control is added by 1 for each click, if the number of clicks determined by the processor 01 is 4, the first adjustment amount can be determined as 4. Assuming that the brightness adjustment amount of the target sub-control is added by 2 for each click, if the number of clicks determined by the processor 01 is 4, the first adjustment amount can be determined as 8. Similarly, assuming that the brightness adjustment amount of the target sub-control is subtracted by 1 for each click, if the number of clicks determined by the processor 01 is 4, the first adjustment amount can be determined as -4. Assuming that the brightness adjustment amount of the target sub-control is subtracted by 2 for each click, if the number of clicks determined by the processor 01 is 2, the first adjustment amount can be determined as -4.

[0124] In addition, the processor 01 according to the embodiments of the present disclosure can be configured to: determine a target sub-zone to be adjusted according to the received click operation on the target sub-control. The determined target sub-zone can be a backlight sub-zone corresponding to the target sub-control in the plurality of backlight sub-zones. That is, after the user clicks a certain brightness adjustment sub-control J11 (i.e., the target sub-control) in the plurality of brightness adjustment sub-controls J11, the processor 01 can obtain the backlight sub-zone A1 corresponding to the brightness adjustment sub-control J11, and can determine the backlight sub-zone A1 as the target sub-zone to be adjusted.

[0125] For example, in combination with Figure 9 If the brightness adjustment sub-control J11 clicked by the user is the brightness adjustment sub-control J11 corresponding to the third backlight sub-zone A1-3 in the lamp panel 021-1, the processor 01 can determine the backlight sub-zone A1-3 possessed by the lamp panel 1 as the target sub-zone.

[0126] Optionally, continuing to refer to Figure 9 It can be seen that each brightness adjustment sub-control J11 can include a first brightness increase sub-control J11+ and a first brightness decrease sub-control J11-. On this basis, the processor 01 can be configured to:

[0127] determine a first brightness increase amount according to the received click operation on the first brightness increase sub-control; and determine a first brightness decrease amount according to the received click operation on the first brightness decrease sub-control.

[0128] The first brightness increase amount can be greater than 0. The first brightness decrease amount can be less than 0. For example, assuming that the brightness increase amount is +1 for each click of the first brightness increase sub-control J11+, if the number of click operations on the first brightness increase sub-control J11+ determined by the processor 01 is 3, the first brightness increase amount can be determined as 3. Assuming that the brightness increase amount is -1 for each click of the first brightness decrease sub-control J1-, if the number of click operations on the first brightness decrease sub-control J1- determined by the processor 01 is 1, the first brightness decrease amount can be determined as -1.

[0129] Afterwards, the processor 01 can be configured to accumulate the first luminance increment and the first luminance decrement to obtain a first luminance adjustment amount. For example, assuming that the first luminance increment is 3 and the first luminance decrement is -1, the processor 01 can calculate the first luminance adjustment amount as 3+(-1)=2. Assuming that the first luminance increment is 3 and the first luminance decrement is -5, the processor 01 can calculate the first luminance adjustment amount as 3+(-5)=-2. Thus, it can also be determined that the first luminance adjustment amount can be greater than 0 or less than 0. Of course, if only the first luminance sub-control element J1+ is clicked, the first luminance adjustment amount is greater than 0; if only the first luminance sub-control element J1- is clicked, the first luminance adjustment amount is less than 0.

[0130] Of course, in some other embodiments, the luminance adjustment sub-control element J11 can not have the distinction between the first luminance sub-control element J11+ and the first luminance sub-control element J11-. On this basis, one click operation of the luminance adjustment sub-control element J11 can increase or decrease the first luminance adjustment amount by 1. The first luminance adjustment amount can correspond to a first adjustment amount threshold and a second adjustment amount threshold, the first adjustment amount threshold being greater than the second adjustment amount threshold. After accumulating multiple times 1, if the first luminance adjustment amount reaches the first adjustment amount threshold, the processor 01 clears the first luminance adjustment amount and starts to decrease by 1. After decreasing multiple times 1, if the first luminance adjustment amount reaches the second adjustment amount threshold, the processor 01 clears the first luminance adjustment amount and starts to increase by 1. And so on.

[0131] As can be known from the above embodiments, after the first luminance adjustment amount and the target partition are determined, the processor 01 can be configured to adjust the luminance of the plurality of light emitting elements in the target partition according to the first luminance adjustment amount.

[0132] For example, the luminance of the plurality of light emitting elements L1 in the target partition can correspond to a luminance value, which can be the average luminance of the plurality of light emitting elements L1, so it can also be considered as adjusting the luminous brightness of the target partition. On this basis, the processor 01 can pre-acquire the initial luminance of the target partition before being adjusted, and then accumulate the first luminance adjustment amount on the basis of the initial luminance, so that the luminance of the target partition reaches the target luminance, thereby adjusting the luminance of the plurality of light emitting elements L1 in the target partition.

[0133] For example, if the first luminance adjustment amount is greater than 0, it can be considered that the luminance of the plurality of light emitting elements L1 in the target partition is increased. If the first luminance adjustment amount is less than 0, it can be considered that the luminance of the plurality of light emitting elements L1 in the target partition is decreased. In combination with the above embodiment, it can be known that only the first luminance increase sub-control J1+ in the first luminance increase sub-control J1+ and the first luminance decrease sub-control J1- is clicked, the purpose of increasing the luminance can be achieved; only the first luminance decrease sub-control J1- in the first luminance increase sub-control J1+ and the first luminance decrease sub-control J1- is clicked, the purpose of decreasing the luminance can be achieved.

[0134] Optionally, the luminance of the plurality of light emitting elements L1 in the target partition can also correspond to a plurality of luminance values. On this basis, the luminance adjustment sub-control J1 corresponding to each backlight partition A1 can be set to include a sub-control corresponding to each luminance value, so as to achieve flexible adjustment of each luminance value.

[0135] Optionally, continuing to refer to Figure 9 It can be seen that the touch control described in the embodiments of the present disclosure can further include a second luminance adjustment control Num. That is, in combination with Figure 9 , the processor 01 can also be configured to display the second luminance adjustment control Num on the display screen 03 in response to the adjustment starting instruction. And configured to determine a second luminance adjustment amount according to the received second touch operation on the second luminance adjustment control Num.

[0136] Optionally, continuing to refer to Figure 9 It can be seen that, like the first luminance adjustment control J1, the second luminance adjustment control Num can include a second luminance increase sub-control Num+ and a second luminance decrease sub-control Num-. And, like the first touch operation, the second touch operation can also be a click operation on the second luminance adjustment control Num. And in some other embodiments, the second touch operation can also be an operation of clicking the second luminance adjustment control Num and inputting a specific luminance, and the embodiments of the present disclosure do not limit the second touch operation.

[0137] On this basis, the processor 01 described in the embodiments of the present disclosure can be configured to determine a second luminance increase amount according to the received click operation on the second luminance increase sub-control Num+ and the second luminance decrease sub-control Num-. And determine a second luminance decrease amount according to the received click operation on the second luminance decrease sub-control Num-.

[0138] The second brightness increment can be greater than 0. The second brightness decrement can be less than 0. For example, assuming that the brightness increment is +1 when the second brightness increment sub-control Num+ is clicked once, if the processor 01 determines that the number of click operations on the second brightness increment sub-control Num+ is 5, the second brightness increment can be determined to be 5. Assuming that the brightness increment is -1 when the second brightness increment sub-control Num+ is clicked once, if the processor 01 determines that the number of click operations on the second brightness increment sub-control Num+ is 2, the second brightness decrement can be determined to be -2. The specific implementation manner can refer to the above-described manner of determining the first brightness increment and the first brightness decrement.

[0139] Afterwards, the processor 01 can also be configured to: accumulate the second brightness increment and the second brightness decrement to obtain a second brightness adjustment amount. For example, assuming that the second brightness increment is 5 and the second brightness decrement is -2, the processor 01 can calculate the second brightness adjustment amount to be: 5+(-2)=3. Assuming that the second brightness increment is 2 and the first brightness decrement is -4, the processor 01 can calculate the second brightness adjustment amount to be: 2+(-4)=-2. Thus, it can also be determined that the second brightness adjustment amount can be greater than 0 or less than 0. Of course, if only the second brightness increment sub-control Num+ is clicked, the second brightness adjustment amount is greater than 0; if only the second brightness decrement sub-control Num- is clicked, the second brightness adjustment amount is less than 0.

[0140] Of course, in some other embodiments, the second brightness adjustment control Num can also not have the distinction between the second brightness increment sub-control Num+ and the second brightness decrement sub-control Num- with respect to the second brightness adjustment control Num. One click operation on the second brightness adjustment control Num can increase the second brightness adjustment amount by 1. In addition, the second brightness adjustment amount can also correspond to a first adjustment amount threshold and a second adjustment amount threshold, the first adjustment amount threshold being greater than the second adjustment amount threshold. After accumulating multiple times 1, if the second brightness adjustment amount reaches the first adjustment amount threshold, the second brightness adjustment amount is cleared to 0 and starts to be -1. After decreasing multiple times 1, if the second brightness adjustment amount reaches the second adjustment amount threshold, the second brightness adjustment amount is cleared to 0 and starts to be +1. And so on.

[0141] After the second brightness adjustment amount is determined, the processor 01 can be further configured to: adjust the brightness of the plurality of light emitting elements L1 in each backlight partition A1 according to the second brightness adjustment amount.

[0142] For example, still taking an example in which one backlight partition A1 corresponds to one brightness value, the processor 01 can also pre-acquire the initial brightness of each backlight partition A1 that has not been adjusted, and then can accumulate the initial brightness of each backlight partition A1 by the second brightness adjustment amount on the basis of the initial brightness, thereby realizing simultaneous and uniform adjustment of the brightness of each backlight partition A1.

[0143] For example, if the second brightness adjustment amount is greater than 0, it can be considered that the brightness of each light emitting element L1 in each backlight partition A1 is simultaneously increased. If the second brightness adjustment amount is less than 0, it can be considered that the brightness of each light emitting element L1 in each backlight partition A1 is simultaneously decreased. In combination with the above embodiment, it can be known that only the second brightness increase sub-control Num+ is clicked among the second brightness increase sub-control Num+ and the second brightness decrease sub-control Num-, the purpose of increasing the brightness can be achieved; only the second brightness decrease sub-control Num- is clicked among the second brightness increase sub-control Num+ and the second brightness decrease sub-control Num-, the purpose of decreasing the brightness can be achieved.

[0144] In combination with the above embodiment, it can be known that in the embodiment of the present disclosure, the setting of the second brightness adjustment control Num is actually used for the processor 01 to uniformly and simultaneously adjust the overall brightness of the backlight 02. The setting of the first brightness adjustment control J1 is actually used for the processor 01 to independently adjust the brightness of the plurality of light emitting elements L1 included in each backlight partition A1 of the backlight 02.

[0145] Optionally, continuing to refer to Figure 9 It can be seen that the touch control disclosed in the embodiment of the present disclosure can further include a second brightness adjustment control Num. That is, in combination with the above embodiment, the touch control can further include a second brightness adjustment control Num. Figure 9 The processor 01 can also be configured to display a brightness reset control Reset on the display screen 03 in response to the adjustment start instruction. And, according to the third touch operation received for the brightness reset control Reset, the brightness of each light emitting element L1 in each backlight partition A1 is reset to a reference brightness.

[0146] For example, like the first touch operation, the third touch operation can also be a clicking operation for the brightness reset control Reset. When the user wants to reset the brightness of each light emitting element L1 in each backlight partition A1 to a reference brightness, the brightness reset control Reset can be clicked. At this time, the processor 01 can receive the third touch operation for the brightness reset control Reset, and according to the third touch operation, the brightness of each light emitting element L1 in each backlight partition A1 of the backlight 01 can be quickly and reliably reset from the initial brightness to the same reference brightness. On this basis, the reference brightness can be a fixed value pre-stored in the processor 01. For example, assuming that the reference brightness is 128, the current brightness of each light emitting element L1 in each backlight partition A1 is displayed on the display screen as Figure 9 When the user clicks the brightness reset control Reset, the processor 01 can reset the current brightness of each light emitting element L1 in each backlight partition A1 to 128.

[0147] Of course, in some other embodiments, the third touch operation can also be clicking the brightness reset control Reset, and inputting the reference brightness. On this basis, the processor 01 does not need to store the reference brightness in advance, but can receive the reference brightness input by the user. The present disclosure does not limit the manner of the third touch operation.

[0148] Optionally, continuing to refer to Figure 9 It can also be seen that the touch control described in the embodiments of the present disclosure can also include a picture switching control Color. That is, in combination with Figure 9 , the processor 01 can also be configured to display the picture switching control Color on the display screen 03 in response to the adjustment starting instruction. And configured to control the display screen 03 to switch to display different color pictures according to the fourth touch operation received for the picture switching control Color.

[0149] Optionally, the fourth touch operation can also be a click operation for the picture switching control Color, just like the first touch operation. When the user wants to watch pictures of different colors, the picture switching control Color can be clicked. At this time, the processor 01 can receive the fourth touch operation for the picture switching control Color, and can flexibly control the display screen 03 to switch to display pictures of different colors according to the fourth touch operation. Wherein, clicking once can switch once, that is, switching from a picture of one color to a picture of another color.

[0150] Optionally, the different color pictures can be fixed pictures stored in the processor 01 in advance. For example, generally include Figure 10 the white picture, the red picture, the green picture and the blue picture as shown. Of course, it can also include a 50% gray picture, and the display screen displays a white picture by default. And the switching order can also be stored in the processor 01 in advance.

[0151] For example, assuming that the current display picture of the display screen 03 is a white picture, and the switching order is white picture to red picture to green picture to blue picture, when the user clicks the picture switching control Color once, the processor 01 can control the display screen 03 to switch from the white picture to the red picture, and when the user clicks the picture switching control Color again, the processor 01 can control the display screen 03 to switch from the red picture to the green picture, and so on. The purpose of switching to display different color pictures is to provide the user with the display effect of the display screen 03 when displaying different color pictures after adjusting the brightness. If the display effect of the display screen 03 displaying the green picture is still not good after one adjustment, the brightness can be fine-tuned again for the green picture.

[0152] Optionally, continuing to refer to Figure 9It can be seen that the picture switching control Color can include a first switching sub-control Color+ and a second switching sub-control Color-. On this basis, the processor 01 described in the embodiments of the present disclosure can be used to:

[0153] According to the received fourth touch operation on the first switching sub-control Color+, the display screen 03 is controlled to switch the display of different color pictures according to a first switching sequence. According to the received fourth touch operation on the second switching sub-control Color-, the display screen 03 is controlled to switch the display of different color pictures according to a second switching sequence. The color switching direction of the first switching sequence and the second switching sequence is opposite. In this way, the picture switching flexibility can be improved.

[0154] The pictures in different colors include Figure 10 Taking the pure white picture, the pure red picture, the pure green picture and the pure blue picture shown in the figure as an example, it is assumed that the first switching sequence is Figure 10 The pure white picture, the pure red picture, the pure green picture and the pure blue picture are switched in turn, and the second switching sequence can be Figure 10 The pure blue picture, the pure green picture, the pure red picture and the pure white picture are switched in turn. If the current picture displayed by the display screen 03 is the pure green picture and the user clicks the first switching sub-control Color+ once, the processor 01 can control the display screen 03 to switch the display from the pure green picture to the pure blue picture. If the current picture displayed by the display screen 03 is the pure green picture and the user clicks the second switching sub-control Color- once, the processor 01 can control the display screen 03 to switch the display from the pure green picture to the pure red picture.

[0155] Of course, in some other embodiments, the picture switching control Color does not have the first switching sub-control Color+ and the second switching sub-control Color-, and accordingly, only one color switching sequence can be included. The processor 01 can control the display screen 03 to switch the display of one color according to one click operation on the picture switching control Color. Assuming that there are four pictures in different colors, after switching the display from the first color picture to the fourth color picture, the display screen 03 can be controlled to switch the display from the fourth color picture to the first color picture, and so on.

[0156] Optionally, with reference to Figure 11 The display device described in the embodiments of the present disclosure can further include a first driving circuit 04 and a second driving circuit 05. The processor 01 can be further connected with the first driving circuit 04, the first driving circuit 04 can be further connected with the second driving circuit 05, and the second driving circuit 05 can be further connected with the backlight source 02.

[0157] On this basis, continuing to refer to Figure 9It can be seen that the touch control described in the embodiments of the present disclosure can further include a burn save control BS. That is, in combination with Figure 9 The processor 01 can also be configured to display the burn save control BS on the display screen 03 in response to the adjustment start instruction. In addition, the processor 01 can be configured to burn and store the adjusted brightness into the first driving circuit 04 according to the fifth touch operation received on the burn save control BS.

[0158] Optionally, the fifth touch operation can also be a click operation on the burn save control BS, similar to the first touch operation. When the user completes the brightness adjustment of the light emitting element L1 in each backlight partition A1, the user can click the burn save control BS. At this time, the processor 01 can receive the fifth touch operation on the burn save control BS, and can burn and store the adjusted brightness into the first driving circuit 04 according to the fifth touch operation. For example, the first driving circuit 04 can be a field programmable gate array (FPGA) circuit. The FPGA circuit generally includes a memory (flash), which can also be referred to as a register. The processor 01 can store the adjusted brightness into the register.

[0159] Optionally, referring to Figure 12 It can be seen that the burn save control BS can include a burn control Burning and a save control Save, which are independent of each other. When the brightness adjustment is completed, the user can first perform a touch operation on the burn control Burning, and then perform a touch operation on the save control Save. The touch operations described herein can also be click operations. On this basis, for the processor 01, the processor 01 can be configured to first burn the adjusted brightness into the first driving circuit 04 according to the touch operation received on the burn control Burning, and then store the burned brightness into the register according to the touch operation received on the save control Save. Then, the user can trigger the display device to exit the brightness adjustment state by touch and / or voice operation, and the display screen displays normally. For example, the display screen can display a close control for brightness adjustment, and the user can trigger the display device to exit the brightness adjustment by clicking the close control.

[0160] The luminance stored in the first driving circuit 04 can be used to drive the backlight 01 to emit light. That is, the first driving circuit 04 can be used to control the second driving circuit 05 to transmit driving current to the backlight 02 according to the stored luminance, so as to drive the plurality of light emitting elements L1 in the backlight 02 to emit light. The stored luminance can be used as a reference luminance for driving the backlight 02 to emit light. That is, the first driving circuit 04 can control the second driving circuit 05 to light up the backlight based on the reference luminance (i.e., the stored luminance).

[0161] For example, the first driving circuit 04 can transmit a duty cycle signal indicating the stored luminance to the second driving circuit 05, so as to instruct the second driving circuit 05 to flexibly output driving current and light up the backlight 02. In other words, in the normal display state of the display screen 03, the backlight 02 can be flexibly driven to emit light based on the adjusted luminance, thereby improving the light emitting effect of the backlight 02. For example, assuming that the luminance stored in the first driving circuit 04 satisfies the result shown in Figure 9 , the first driving circuit 04 and the second driving circuit 05 can light up the backlight 02 based on the result shown in Figure 9 when cooperating to drive the backlight 01 normally.

[0162] It should be noted that, in order to facilitate the user to view the luminance, when entering the luminance adjustment, the processor 01 can display the luminance parameters in decimal form on the display screen, such as the parameters of Figure 9 "127" and "126". Since the FPGA circuit generally stores hexadecimal data, the final luminance burned and stored in the FPGA circuit (i.e., the first driving circuit 04) can be hexadecimal. For example, assuming that the adjusted luminance is "124" in decimal, the luminance stored in the first driving circuit 04 can be "7c" in hexadecimal.

[0163] In addition, the processor 01 can be integrated into a chip system (system-on-a-chip, SOC). The SOC can be connected to the FPGA circuit in communication through an I2C protocol. The SOC is used to read and write data in the FPGA circuit. That is, the data in the FPGA flash is read, and the adjusted luminance is burned into the FPGA circuit to solidify.

[0164] Optionally, as described in the above embodiments, each backlight partition A1 can have a plurality of sub-partitions, and each sub-partition includes at least one light emitting element. The second driving circuit 05 can have a plurality of current transmission channels, and the second driving circuit 05 can be used to transmit driving current to the plurality of sub-partitions through the plurality of current transmission channels, thereby achieving the purpose of local dimming.

[0165] Optionally, continuing to refer to Figure 9It can be seen that the touch control described in the embodiments of the present disclosure can also include a brightness reading control Read. That is, in combination with Figure 9 The processor 01 can also be configured to display the brightness reading control Read on the display screen in response to the adjustment start instruction. Furthermore, the processor 01 can be configured to display the stored brightness in the first driving circuit 01 according to the received sixth touch operation, so that the user can view the stored brightness reliably and the user experience is improved. Figure 9 The stored brightness can be displayed on the display screen 03, or as described in the above embodiments, the stored brightness can also be displayed on the control device connected to the display device.

[0166] Optionally, referring to Figure 13 The display device described in the embodiments of the present disclosure can also include a brightness sensor S1, which can be located on one side of the backlight source 02 and connected to the first driving circuit 04 (not shown in the figure).

[0167] The brightness sensor S1 can be configured to detect the light-emitting brightness of the plurality of light-emitting elements L1 and transmit the detected light-emitting brightness to the first driving circuit 04. On this basis, the first driving circuit 04 can be configured to control the second driving circuit 05 to correct the driving current transmitted to the backlight source 02 based on the light-emitting brightness transmitted by the brightness sensor S1. For example, if the light-emitting brightness of the backlight source 02 is still abnormal during the process of driving the backlight source 02 to emit light based on the brightness adjusted according to the first brightness adjustment amount, the brightness sensor S1, the first driving circuit 04, and the second driving circuit 05 can cooperate with each other to realize brightness correction, so as to ensure that the display effect of the display device is good.

[0168] Of course, in some other embodiments, the brightness sensor S1, the first driving circuit 04, and the second driving circuit 05 can be directly cooperated with each other to realize the brightness adjustment of the backlight partition A1. At this time, the brightness adjustment method can not need to confirm the physical size every time the lamp panel is assembled to manufacture the backlight source, and the debugging can be performed after the assembly is completed. However, the setting cost of the brightness sensor S1 is relatively high, and it is not suitable for mass production.

[0169] Optionally, referring to Figure 2 and Figure 5 The backlight source 02 described in the embodiments of the present disclosure can include a plurality of lamp panels 021 spliced together, and each lamp panel 021 can have at least two backlight partitions A1. On this basis, there is a joint f1 between each two adjacent lamp panels 021. In the embodiments of the present disclosure, as Figure 12As shown, the luminance sensor S1 can be located at the joint of the plurality of lamp panels 021 to reliably detect the luminous brightness of the plurality of lamp panels 021 at the position close to the joint f1. Accordingly, it can be known that a plurality of luminance sensors S1 can be included. Since the luminance at the joint f1 is prone to abnormality, timely correction of the luminance abnormality can be achieved to ensure good display effect.

[0170] Optionally, all the controls described in the above embodiments of the present disclosure can be Figure 9 virtual controls displayed on the display screen. Of course, in some other embodiments, one or more controls can also be physical buttons provided on the display device. In addition, in combination with Figure 2 , Figure 9 and Figure 12 , in the embodiments of the present disclosure, the plurality of lamp panels 021 included in the backlight 02 can be arranged in an array on the display screen 03. The second luminance adjustment control (including Num+ and Num-), the luminance reset control Reset, the picture switching control (including Color+ and Color-), the burning control Burning, and the save control Save can be arranged in sequence along the lamp panel row direction X, and the plurality of lamp panels are arranged in sequence along the lamp panel column direction Y. Of course, each control and lamp panel 021 can also satisfy other arrangement modes, and the arrangement mode is not limited in the embodiments of the present disclosure.

[0171] It should be noted that in the embodiments of the present disclosure, the luminance adjustment method executed by the processor 01 can be performed in the testing stage before the display device is shipped, and on this basis, the user described in the above embodiments can be a manufacturing engineer of the display device. Or, the luminance adjustment method executed by the processor 01 can also be performed after the display device is shipped, and on this basis, the user described in the above embodiments can be a person using the display device.

[0172] In combination with the above embodiments, and Figure 9 and Figure 12 , it can be known from the interface schematic diagram of the display screen 03 that the processor 01 provided in the embodiments of the present disclosure can be used to execute the following operations:

[0173] (1) Reset function: resetting the luminance of each light emitting element L1 in each backlight partition A1 to the same reference luminance, such as 128.

[0174] (2) Read function: reading the existing stored luminance in the register of the first driving circuit 04.

[0175] (3) Color+ / Color- picture background color switching function: controlling the display screen 03 to switch to display pictures of different colors.

[0176] (4) J11+ / J11- brightness partition adjustment function: individually adjusting the brightness of the plurality of light emitting elements L1 in each backlight partition A1 based on the first brightness adjustment amount.

[0177] (5) Num- / Num+ brightness overall adjustment function: uniformly and simultaneously adjusting the brightness of the plurality of light emitting elements L1 in each backlight partition A1 based on the second brightness adjustment amount.

[0178] (6) Burning function: burning the adjusted brightness into the FPGA to solidify.

[0179] (7) Save function: saving the adjusted brightness.

[0180] On the basis of the above, combined with Figure 6 and Figure 9 , the adjusted brightness content is as follows:

[0181] When the user observes that there is a vertical bright line between the seams f1 of the two adjacent lamp panels 021 in the first direction X, i.e. the lamp panel row direction, the first brightness reduction sub-control J11- of the third backlight partition A1-3 and the first backlight partition A1-1 in the two adjacent lamp panels 021 can be subjected to a first touch operation to reduce the brightness of the first backlight partition A1-1 and the brightness of the third backlight partition A1-3, thereby achieving the purpose of improving the vertical bright line. For example, assuming that the seams f1 between the lamp panel 021-2 and its adjacent lamp panel 021-1, and the seams f1 between the lamp panel 021-2 and its adjacent lamp panel 021-3, all have vertical bright lines. Then, the brightness of the first backlight partition A1-1 and the brightness of the third backlight partition A1-3 in the lamp panel 021-2 can be reduced, the brightness of the first backlight partition A1-1 in the lamp panel 021-1 can be reduced, and the brightness of the third backlight partition A1-3 in the lamp panel 021-3 can be reduced.

[0182] When the user observes that there is a vertical dark line between the seams f1 of the two adjacent lamp panels 021 in the first direction X, the first brightness reduction sub-control J11- of the second backlight partition A1-2 and the fourth backlight partition A1-4 in the two adjacent lamp panels 021 can be subjected to a first touch operation to reduce the brightness of the second backlight partition A1-2 and the brightness of the fourth backlight partition A1-4, thereby achieving the purpose of improving the vertical dark line. For example, assuming that the seams f1 between the lamp panel 021-2 and its adjacent lamp panel 021-1 have a vertical dark line. Then, the brightness of the second backlight partition A1-2 and the brightness of the fourth backlight partition A1-4 in the lamp panel 021-2 can be reduced, and the brightness of the second backlight partition A1-2 and the brightness of the fourth backlight partition A1-4 in the lamp panel 021-1 can be reduced.

[0183] When the user observes a horizontal bright line between the seams f1 of two adjacent lamp panels 021 in the second direction Y, i.e. the lamp panel column direction, the first luminance reduction sub-control J11- of the fourth backlight partition A1-4 in the two adjacent lamp panels 021 can be subjected to a first touch control operation to reduce the luminance of the fourth backlight partition A1-4, so as to improve the horizontal bright line. For example, assuming that a horizontal bright line appears between the seams f1 of the lamp panel 021-1 and the lamp panel 021-5 adjacent thereto. The luminance of the fourth backlight partition A1-4 in the lamp panel 021-1 and the luminance of the fourth backlight partition A1-4 in the lamp panel 021-5 can be reduced.

[0184] When the user observes a horizontal dark line between the seams f1 of two adjacent lamp panels 021 in the second direction Y, the first luminance reduction sub-control J11- of the first backlight partition A1-1, the third backlight partition A1-3 and the second backlight partition A1-2 in the two adjacent lamp panels 021 can be subjected to a first touch control operation to reduce the luminance of the first backlight partition A1-1, the luminance of the third backlight partition A1-3 and the luminance of the second backlight partition A1-2, so as to improve the horizontal dark line. For example, assuming that a horizontal dark line appears between the seams f1 of the lamp panel 021-1 and the lamp panel 021-5 adjacent thereto. The luminance of the first backlight partition A1-1, the luminance of the third backlight partition A1-3 and the luminance of the second backlight partition A1-2 in the lamp panel 021-1 and the luminance of the first backlight partition A1-1, the luminance of the third backlight partition A1-3 and the luminance of the second backlight partition A1-2 in the lamp panel 021-5 can be reduced.

[0185] The above is only to reduce the luminance to improve the display abnormality. In some other embodiments, the display abnormality can also be improved by increasing the luminance, and the principle is the same as above, which will not be described again. In the 65-inch display device project verification, it is found that if the luminance at the seam f1 is reduced by about 10 nits, the luminance parameter 128 is reduced to between 124 and 122 through fine adjustment by the FPGA circuit, the display effect can be improved. 128 reduced to between 124 and 122 corresponds to hexadecimal, i.e. 80 reduced to between 7c and 7a. In other words, if a dark line appears, the luminance of the non-dark line area is reduced by about 10 nits, which will not affect the overall display effect. After adjustment, the user can click the picture switching control Color+ / Color- to make the processor 01 control the display screen 03 to switch to display different color pictures such as pure white, pure red, pure green and pure blue. If the display effect of each color picture is good, the user can further click the burning control Burning to burn and save the adjusted luminance to the FPGA. Then, the user can end the luminance adjustment.

[0186] In combination with the above embodiments, the embodiments of the present disclosure can improve the brightness at the joint f1 by independently adjusting the brightness of each backlight sub-area A1 of each lamp panel 021 in the backlight 02, and ensure good display effect. The above method provided by the embodiments of the present disclosure can solve the problem of display abnormality of bright lines or dark lines in the LCD panel caused by large joint spacing due to the assembly tolerance or positioning tolerance of the lamp panel; and can also solve the color difference abnormality problem caused by the difference in driving current. The picture display uniformity of the LCD panel can be improved, the production yield of the whole machine can be improved, the lamp panel does not need to be disassembled and replaced, and the production efficiency is also improved. Moreover, the above adjustment method provided by the embodiments of the present disclosure can be applied to various display devices of different sizes, especially display devices with a large number of lamp panels (such as 65 inches).

[0187] Optionally, the display device described in the embodiments of the present disclosure can be an LCD device, a mobile phone, a tablet computer, a television, a display, a notebook computer, a navigator or any product or component with display function.

[0188] In summary, the display device provided by the embodiments of the present disclosure includes a processor and a backlight source with a plurality of backlight sub-areas. The processor can display a first brightness adjustment control based on an adjustment start instruction, and can adjust the brightness of a plurality of light emitting elements included in a target sub-area in the plurality of backlight sub-areas according to a received touch operation on the first brightness adjustment control. Thus, compared with the current adjustment of the overall brightness of the backlight source, the display device provided by the embodiments of the present disclosure has better flexibility in adjusting the brightness of the backlight source.

[0189] Figure 14 is a flow chart of a brightness adjustment method of a backlight source in a display device provided by the embodiments of the present disclosure, which can be applied to the processor 01 described in the above embodiments. As shown in Figure 14 , the method includes:

[0190] Step 1401, in response to an adjustment start instruction, display a touch control, and the touch control includes a first brightness adjustment control.

[0191] Step 1402, according to a received first touch operation on the first brightness adjustment control, determine a first brightness adjustment amount.

[0192] Step 1403, determine a target sub-area to be adjusted in the plurality of backlight sub-areas.

[0193] Step 1404, adjust the brightness of a plurality of light emitting elements in the target sub-area according to the first brightness adjustment amount.

[0194] In summary, the display device brightness adjustment method provided by the embodiments of the present disclosure is provided. In the method, the processor can display a first brightness adjustment control in response to an adjustment start instruction, and can adjust the brightness of the light emitting elements included in the target sub-area in the plurality of backlight sub-areas according to the received touch operation on the first brightness adjustment control. Compared with the current method of adjusting the overall brightness of the backlight, the brightness adjustment method provided by the embodiments of the present disclosure has better adjustment flexibility.

[0195] Optionally, as shown in Figure 1 , the display device can further include a display screen 03, and the processor 01 can be further connected with the display screen 03. On this basis, the above-mentioned step 1401 can include: displaying a touch control on the display screen in response to the adjustment start instruction.

[0196] Optionally, as shown in Figure 2 , the backlight 02 can include a plurality of spliced lamp panels 021, and each lamp panel 021 can have at least two backlight sub-areas A1.

[0197] Optionally, in combination with Figure 4 , each adjacent two lamp panels 021 can have a joint f1, and the lamp panel 021 can have a first backlight sub-area A1-1 and a second backlight sub-area A1-2, the first backlight sub-area A1-1 is adjacent to the joint f1 and is located between the joint f1 and the second backlight sub-area A1-2.

[0198] Optionally, in combination with Figure 5 and Figure 6 , the lamp panel 021 can further have a third backlight sub-area A1-3 and a fourth backlight sub-area A1-4. The first backlight sub-area A1-1, the second backlight sub-area A1-2 and the third backlight sub-area A1-3 can be arranged in sequence along a first direction X, and the second backlight sub-area A1-2 and the fourth backlight sub-area A1-4 can be arranged in sequence along a second direction Y. Wherein, the first direction X and the second direction Y can intersect.

[0199] In addition, in the first direction X, the first backlight sub-area A1-1 of one lamp panel 021 and the third backlight sub-area A1-3 of the other lamp panel 021 can be adjacent in each adjacent two lamp panels 021. In the second direction Y, the fourth backlight sub-area A1-4 of one lamp panel 021 and the fourth backlight sub-area A1-4 of the other lamp panel 021 can be adjacent in each adjacent two lamp panels 021.

[0200] Optionally, the backlight 02 described in the embodiments of the present disclosure can further have a plurality of sub-areas in each backlight sub-area A1, and each sub-area can include at least one light emitting element L1, and the brightness of the light emitting element in each sub-area can be independently controlled.

[0201] Optionally, as shown inFigure 8 As shown, the display device can further include a diffusion plate B1 located on the side of the backlight 02 away from the substrate 01, the diffusion plate B1 being configured to diffuse light emitted by the backlight 02. A first distance (i.e., a light mixing distance OD) between the lamp plate 021 and the diffusion plate B1 can be greater than 0 and less than or equal to 6 mm.

[0202] On this basis, in combination with Figure 8 The ratio of the second distance d2 between each two adjacent lamp plates 021 to the first distance d1 can be greater than or equal to 1.2 and less than or equal to 8.

[0203] The second distance d2 is the distance between the light emitting element L1 on one lamp plate 021 close to the joint f1 and the light emitting element L1 on the other lamp plate 021 close to the joint f1 in each two adjacent lamp plates 021 with a joint. That is, the second distance d2 is the distance between the two lamp plates 021.

[0204] Optionally, the light emitting element L1 described in the embodiments of the present disclosure can include a micro light emitting diode (mini LED).

[0205] Optionally, as Figure 9 As shown, the first brightness adjustment control J1 can include a plurality of brightness adjustment sub-controls J11 corresponding to the plurality of backlight partitions A1. The first touch operation can be a click operation on a target sub-control in the plurality of brightness adjustment sub-controls J1.

[0206] Correspondingly, determining the first adjustment amount, i.e., the step 1402 can include determining a first brightness adjustment amount according to the received click operation on the target sub-control.

[0207] And determining the target partition, i.e., the step 1403 can include determining a target partition to be adjusted according to the received click operation on the target sub-control. The target partition is the backlight partition corresponding to the target sub-control in the plurality of backlight partitions.

[0208] Optionally, as Figure 9 As shown, each brightness adjustment sub-control J11 can include a first brightness increase sub-control J11+ and a first brightness decrease sub-control J11-. On this basis, the step 1402 can include:

[0209] Determining a first brightness increase amount according to the received click operation on the first brightness increase sub-control.

[0210] Determining a first brightness decrease amount according to the received click operation on the first brightness decrease sub-control.

[0211] Optionally, as Figure 9As shown, the display screen 03 can have a plurality of display regions B1 corresponding to the plurality of backlight partitions A1, and the luminance adjustment sub-control J11 corresponding to each backlight partition A1 can be located within the display region B1 corresponding to the backlight partition A1.

[0212] Figure 15 is a flowchart of another luminance adjustment method of a backlight provided by the embodiments of the present disclosure, which can be applied to the processor 01 described in the above embodiments. As shown, the method can include: Figure 15

[0213] Step 1501, in response to an adjustment starting instruction, display a touch control, which includes a first luminance adjustment control, a second luminance adjustment control, a luminance reset control, a picture switching control, a burning save control, and a luminance reading control.

[0214] Step 1502, according to a first touch operation received for the first luminance adjustment control, determine a first luminance adjustment amount.

[0215] Step 1503, determine a target partition to be adjusted in the plurality of backlight partitions.

[0216] Step 1504, adjust the luminance of the plurality of light emitting elements in the target partition according to the first luminance adjustment amount.

[0217] Step 1505, according to a second touch operation received for the second luminance adjustment control, determine a second luminance adjustment amount.

[0218] Optionally, as described in the above embodiments, the second touch operation can be a click operation for the second luminance adjustment control. And, referring to Figure 9 It can be seen that the displayed second luminance adjustment control Num can include a second luminance increase sub-control Num+ and a second luminance decrease sub-control Num-. On this basis, the above step 1505 can include: according to a click operation received for the second luminance increase sub-control, determine a second luminance increase amount. According to a click operation received for the second luminance decrease sub-control, determine a second luminance decrease amount.

[0219] Step 1506, adjust the luminance of the plurality of light emitting elements in each backlight partition according to the second luminance adjustment amount.

[0220] Step 1507, according to a third touch operation received for the luminance reset control, reset the luminance of the plurality of light emitting elements in each backlight partition to a reference luminance.

[0221] Step 1508, according to a fourth touch operation received for the picture switching control, control the display screen to switch to display a picture of a different color.

[0222] Optionally, as​Figure 9 As shown, the displayed screen switching control Color can include a first switching sub-control Color+ and a second switching sub-control Color-. On this basis, the step 1508 can include:

[0223] According to the received fourth touch operation for the first switching sub-control, the display screen is controlled to switch the display of different color screens in a first switching sequence.

[0224] According to the received fourth touch operation for the second switching sub-control, the display screen is controlled to switch the display of different color screens in a second switching sequence.

[0225] The first switching sequence and the second switching sequence are opposite in color switching direction.

[0226] Optionally, with reference to Figure 11 It can be seen that the display device can further include a first driving circuit 03 and a second driving circuit 04. The processor 01 can be further connected with the first driving circuit 03, the first driving circuit 03 can be further connected with the second driving circuit 04, and the second driving circuit 04 can be further connected with the backlight source 02. On this basis, with reference to Figure 15 It can be seen that the method disclosed in the embodiment of the present disclosure can further include:

[0227] Step 1509, according to the received fifth touch operation for the burning saving control, the brightness adjusted according to the first brightness adjustment amount is burned and stored into the first driving circuit.

[0228] The brightness stored in the first driving circuit is used for the first driving circuit to control the second driving circuit to transmit driving current to the backlight source according to the stored brightness, so as to drive the plurality of light emitting elements in the backlight source to emit light.

[0229] Step 1510, according to the received sixth touch operation for the brightness reading control, the brightness stored in the first driving circuit is displayed.

[0230] It should be noted that the order of the steps of the brightness adjustment method provided by the embodiment of the present disclosure can be adjusted appropriately, and the steps can also be increased or decreased accordingly according to the situation. For example, steps 1505 and 1506 can be deleted. Any person skilled in the art can easily think of changes within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the invention, therefore, no further description is given. Figure 15 It is only a schematic illustration, and the order of the steps is not limited.

[0231] In summary, the embodiment of the present disclosure provides a method for adjusting the brightness of a backlight source in a display device. In the method, the processor can display a first brightness adjustment control in response to an adjustment starting instruction, and can adjust the brightness of a plurality of light emitting elements included in a target subregion in a plurality of backlight subregions according to a touch operation received for the first brightness adjustment control. Compared with the current method for adjusting the overall brightness of the backlight source, the adjustment flexibility of the brightness adjustment method provided by the embodiment of the present disclosure is better.

[0232] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described method can refer to the corresponding process in the foregoing processor embodiment, which will not be described here.

[0233] Optionally, the embodiment of the present disclosure also provides a computer readable storage medium, which can store a computer program. The computer program can be loaded and executed by the processor 01 of the above-described embodiment to realize the brightness adjustment method of the backlight source as shown in Figure 14 or Figure 15 .

[0234] The terms used in the embodiments of the present disclosure are only used for the explanation of the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should be understood as the general meaning understood by those skilled in the art in the field of the present disclosure.

[0235] As used in the present patent application specification and claims, "first", "second", or "third" and similar words do not indicate any order, number or importance, but are only used to distinguish different components.

[0236] Similarly, "one" or "a" and similar words do not indicate a quantity limitation, but indicate the existence of at least one.

[0237] "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects.

[0238] "Up", "down", "left" or "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0239] "And / or" means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after are in an "or" relationship.

[0240] The above merely provides the optional embodiments of the present disclosure, and does not limit the present disclosure. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present disclosure shall fall within the protection scope of the present disclosure.

Claims

1. A display device, characterized by comprising: The display device comprises a processor and a backlight source, the backlight source has a plurality of backlight partitions, each of the backlight partitions comprises a plurality of light emitting elements; The processor is connected with the backlight source, and the processor is used for: in response to an adjustment starting instruction, displaying a touch control control, the touch control control comprises a first brightness adjustment control and a second brightness adjustment control; wherein the first brightness adjustment control comprises a plurality of brightness adjustment sub-controls corresponding to the plurality of backlight partitions one by one, each of the brightness adjustment sub-controls comprises a first brightness increase sub-control and a first brightness decrease sub-control; the second brightness adjustment control comprises a second brightness increase sub-control and a second brightness decrease sub-control; determining a first brightness adjustment amount according to a received first touch operation for the first brightness adjustment control, the first touch operation being a click operation for a target sub-control in the plurality of brightness adjustment sub-controls; the determining of the first brightness adjustment amount according to the received first touch operation for the first brightness adjustment control comprises: determining a first brightness increase amount according to a received click operation for the first brightness increase sub-control, determining a first brightness decrease amount according to a received click operation for the first brightness decrease sub-control, and accumulating the first brightness increase amount and the first brightness decrease amount to obtain the first brightness adjustment amount; the first brightness increase amount is greater than 0, and the first brightness decrease amount is less than 0; determining a target partition to be adjusted in the plurality of backlight partitions according to a received click operation for the target sub-control, the target partition being a backlight partition corresponding to the target sub-control in the plurality of backlight partitions; obtaining an initial brightness of the target partition which has not been adjusted, and accumulating the first brightness adjustment amount to the initial brightness of the target partition to adjust the brightness of the plurality of light emitting elements in the target partition; determining a second brightness adjustment amount according to a received second touch operation for the second brightness adjustment control; the determining of the second brightness adjustment amount according to the received second touch operation for the second brightness adjustment control comprises: determining a second brightness increase amount according to a received click operation for the second brightness increase sub-control, determining a second brightness decrease amount according to a received click operation for the second brightness decrease sub-control, and accumulating the second brightness increase amount and the second brightness decrease amount to obtain the second brightness adjustment amount; the second brightness increase amount is greater than 0, and the second brightness decrease amount is less than 0; obtaining an initial brightness of each of the backlight partitions which has not been adjusted, and accumulating the second brightness adjustment amount to the initial brightness of each of the backlight partitions to adjust the brightness of the plurality of light emitting elements in each of the backlight partitions; wherein the backlight source comprises a plurality of lamp panels spliced, the plurality of lamp panels are arranged in an array, each of the lamp panels has at least two backlight partitions, and each adjacent two lamp panels have a splicing seam. The display device further comprises a diffusion plate located on a side of the backlight source away from the substrate, the diffusion plate being configured to diffuse light emitted by the backlight source; a ratio of a second spacing between every two adjacent lamp panels to the first spacing is greater than or equal to 1.2 and less than or equal to 8; wherein the first spacing is a distance between the lamp panel and the diffusion plate, and the second spacing is a distance between a light emitting element on one lamp panel close to the joint and a light emitting element on the other lamp panel close to the joint in every two adjacent lamp panels with the joint.

2. The display device according to claim 1, wherein The display device further comprises a display screen, and the processor is further connected with the display screen, and the processor is configured to: display a touch control on the display screen in response to an adjustment start instruction.

3. The display device according to claim 1, wherein The lamp panel has a first backlight sub-region and a second backlight sub-region, the first backlight sub-region is adjacent to the joint and is located between the joint and the second backlight sub-region.

4. The display device according to claim 3, wherein The lamp panel further has a third backlight sub-region and a fourth backlight sub-region. The first backlight sub-region, the second backlight sub-region and the third backlight sub-region are arranged in sequence along a first direction, and the second backlight sub-region and the fourth backlight sub-region are arranged in sequence along a second direction. Among the four backlight sub-regions, the fourth backlight sub-region is adjacent to the joint extending along the first direction, and the first backlight sub-region or the third backlight sub-region is adjacent to the joint extending along the second direction. The first direction intersects the second direction.

5. The display device according to claim 4, wherein In the first direction, among every two adjacent lamp panels, the first backlight sub-region of one lamp panel is adjacent to the third backlight sub-region of the other lamp panel. In the second direction, among every two adjacent lamp panels, the fourth backlight sub-region of one lamp panel is adjacent to the fourth backlight sub-region of the other lamp panel.

6. The display device according to any one of claims 1 to 5, wherein Each of the backlight sub-regions has a plurality of sub-regions, and each of the sub-regions includes at least one light emitting element. The processor is further configured to independently control the brightness of the light emitting elements in each of the sub-regions.

7. The display device according to claim 6, wherein In the backlight source comprising a plurality of lamp panels spliced together, the first spacing between the lamp panel and the diffusion plate is greater than 0 and less than or equal to 6 mm.

8. The display device according to any one of claims 1 to 5, and 7, wherein The light emitting element comprises a mini light emitting diode (mini LED).

9. The display device according to any one of claims 1 to 5, and 7, wherein The display screen of the display device has a plurality of display regions corresponding to the plurality of backlight sub-regions one by one, and a brightness adjustment sub-control corresponding to each of the backlight sub-regions is located in a display region corresponding to the backlight sub-region.

10. The display device according to any one of claims 1 to 5, and 7, wherein The touch control further comprises a display brightness reset control, and the processor is further configured to: reset the brightness of the plurality of light emitting elements in each of the backlight sub-regions to a reference brightness according to a received third touch operation on the brightness reset control.

11. The display device according to any one of claims 1 to 5, and 7, wherein The touch control further comprises a display screen switching control, and the processor is further configured to: control the display screen of the display device to switch to display screens of different colors according to a received fourth touch operation on the screen switching control.

12. The display device of claim 11, wherein, The screen switching control comprises a first switching sub-control and a second switching sub-control, and the processor is configured to: control the display screen to switch to display screens of different colors in a first switching order according to a received fourth touch operation on the first switching sub-control; and control the display screen to switch to display screens of different colors in a second switching order according to a received fourth touch operation on the second switching sub-control. According to the fourth touch operation received for the second switching sub-control, the display screen is controlled to switch the display of the pictures of different colors in a second switching sequence; The color switching direction of the first switching sequence is opposite to that of the second switching sequence.

13. The display device according to any one of claims 1 to 5, 7, and 12, wherein The touch control further includes a burn-in saving control; the display device further includes a first driving circuit and a second driving circuit; the processor is further connected with the first driving circuit, the first driving circuit is further connected with the second driving circuit, and the second driving circuit is further connected with the backlight source; the processor is further configured to: According to the fifth touch operation received for the burn-in saving control, the brightness adjusted according to the first brightness adjustment amount is burned in and stored into the first driving circuit; The first driving circuit is configured to control the second driving circuit to transmit driving current to the backlight source to drive the multiple light emitting elements in the backlight source to emit light according to the stored brightness.

14. The display device of claim 13, wherein, The touch control further includes a brightness reading control; the processor is further configured to: According to the sixth touch operation received for the brightness reading control, the brightness stored in the first driving circuit is displayed.

15. The display device of claim 13, wherein, The display device further includes a brightness sensor located on the side of the backlight source and connected with the first driving circuit; The brightness sensor is configured to detect the light emitting brightness of the multiple light emitting elements and transmit the detected light emitting brightness to the first driving circuit; The first driving circuit is further configured to control the second driving circuit to correct the driving current transmitted to the backlight source based on the light emitting brightness transmitted by the brightness sensor.

16. A method of adjusting the brightness of a backlight in a display device, characterized by, The backlight source has multiple backlight partitions, and each backlight partition includes multiple light emitting elements; The method includes: In response to an adjustment starting instruction, a touch control is displayed, the touch control including a first brightness adjustment control and a second brightness adjustment control; the first brightness adjustment control including multiple brightness adjustment sub-controls corresponding to the multiple backlight partitions one by one, each brightness adjustment sub-control including a first brightness increase sub-control and a first brightness decrease sub-control; the second brightness adjustment control including a second brightness increase sub-control and a second brightness decrease sub-control; According to a first touch operation received for the first brightness adjustment control, a first brightness adjustment amount is determined, the first touch operation being a click operation for a target sub-control in the multiple brightness adjustment sub-controls; the determination of the first brightness adjustment amount according to the first touch operation received for the first brightness adjustment control including: determining a first brightness increase amount according to a click operation received for the first brightness increase sub-control, determining a first brightness decrease amount according to a click operation received for the first brightness decrease sub-control, and accumulating the first brightness increase amount and the first brightness decrease amount to obtain the first brightness adjustment amount; the first brightness increase amount being greater than 0, and the first brightness decrease amount being less than 0; According to the received click operation for the target sub-control, a target partition to be adjusted in the plurality of backlight partitions is determined, the target partition being a backlight partition corresponding to the target sub-control in the plurality of backlight partitions; An initial brightness of the target partition that has not been adjusted is obtained, and the initial brightness of the target partition is accumulated by the first brightness adjustment amount to adjust the brightness of a plurality of light emitting elements in the target partition; According to the received second touch operation for the second brightness adjustment control, a second brightness adjustment amount is determined; the determination of the second brightness adjustment amount according to the received second touch operation for the second brightness adjustment control comprises: determining a second brightness increment according to the received click operation for the second brightness increment sub-control, determining a second brightness decrement according to the received click operation for the second brightness decrement sub-control, and accumulating the second brightness increment and the second brightness decrement to obtain the second brightness adjustment amount; the second brightness increment is greater than 0, and the second brightness decrement is less than 0; An initial brightness of each of the backlight partitions that has not been adjusted is obtained, and the initial brightness of each of the backlight partitions is accumulated by the second brightness adjustment amount to adjust the brightness of a plurality of light emitting elements in each of the backlight partitions; The backlight source comprises a plurality of lamp panels spliced together, each of the lamp panels has at least two backlight partitions, and each adjacent two lamp panels have a joint gap therebetween. The display device further comprises a diffusion plate located on a side of the backlight source away from the substrate, the diffusion plate being used to diffuse light emitted by the backlight source; a ratio of a second spacing between each adjacent two lamp panels to a first spacing is greater than or equal to 1.2 and less than or equal to 8; wherein the first spacing is a distance between the lamp panel and the diffusion plate, and the second spacing is a distance between a light emitting element on one of the lamp panels close to the joint gap and a light emitting element on the other of the lamp panels close to the joint gap.

17. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, the computer program is loaded and executed by the processor to realize the brightness adjustment method of the backlight source in the display device of claim 16.

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