CN114974142A

CN114974142A - Display device and brightness adjusting method of backlight source thereof

Info

Publication number: CN114974142A
Application number: CN202210615585.2A
Authority: CN
Inventors: 杨凡; 李太亮; 李英杰; 王之旭; 陈硕; 马希通
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-30
Also published as: WO2023231701A1

Abstract

The disclosure provides a display device and a brightness adjusting method of a backlight source of the display device, and belongs to the technical field of display. The display device includes a processor and a backlight having a plurality of backlight partitions. The processor may display a first brightness adjustment control based on the adjustment start instruction, and may adjust brightness of a plurality of light emitting elements included in a target partition of the plurality of backlight partitions according to the received touch operation for the first brightness adjustment control. Thus, compared with the conventional display device which can only adjust the overall brightness of the backlight, the display device provided by the disclosure has better flexibility in adjusting the brightness of the backlight.

Description

Display device and brightness adjusting method of backlight source thereof

Technical Field

The disclosure relates to the field of display technologies, and in particular, to a display device and a brightness adjustment method for a backlight source thereof.

Background

A micro light emitting diode (mini LED) is becoming mainstream in the market due to its advantages of self-luminescence, high brightness, small volume, etc., and is generally applied to a Liquid Crystal Display (LCD) panel and used as a backlight source. That is, the LCD panel generally includes a display screen, a mini LED backlight on one side of the display screen, and a backlight driving circuit. The backlight source driving circuit is connected with the mini LED backlight source and used for transmitting driving current to the mini LED backlight source to drive the backlight source to emit light, and therefore the display screen can display pictures. The luminance of the backlight is positively correlated to the magnitude of the driving current, that is, the luminance of the backlight can be adjusted by adjusting the driving current.

However, currently, only the whole luminance of the backlight can be adjusted, but the luminance of a partial area of the backlight cannot be adjusted, and the flexibility of luminance adjustment is poor.

Disclosure of Invention

The embodiment of the disclosure provides a display device and a brightness adjusting method of a backlight source thereof, which can solve the problem of poor brightness adjusting flexibility in the related art, and the technical scheme is as follows:

in one aspect, there is provided a display device including: a processor and a backlight source having a plurality of backlight sections, each of the backlight sections comprising a plurality of light emitting elements;

the processor is connected with the backlight source, and the processor is used for:

responding to an adjustment starting instruction, and displaying a touch control, wherein the touch control comprises: a first brightness adjustment control;

determining a first brightness adjustment amount according to a received first touch operation aiming at the first brightness adjustment control;

determining a target partition to be adjusted in the plurality of backlight partitions;

and adjusting the brightness of the plurality of light-emitting elements in the target subarea according to the first brightness adjustment quantity.

Optionally, the display device further includes: the display screen, the treater still with the display screen is connected, just the treater is used for:

and responding to the adjustment starting instruction, and displaying a touch control on the display screen.

Optionally, the backlight source includes a plurality of lamp panels that are spliced, and each lamp panel has at least two backlight partitions.

Optionally, a joint is arranged between every two adjacent lamp panels, each lamp panel is provided with a first backlight partition and a second backlight partition, and the first backlight partition is adjacent to the joint and is located between the joint and the second backlight partition.

Optionally, the lamp panel further has a third backlight partition and a fourth backlight partition;

the first backlight subarea, the second backlight subarea and the third backlight subarea are sequentially arranged along a first direction, and the second backlight subarea and the fourth backlight subarea are sequentially arranged along a second direction;

wherein the first direction intersects the second direction.

Optionally, in the first direction, in every two adjacent lamp panels, the first backlight partition of one lamp panel is adjacent to the third backlight partition of the other lamp panel;

in the second direction, in every two adjacent lamp panels, a fourth backlight partition of one lamp panel is adjacent to a fourth backlight partition of the other lamp panel.

Optionally, each of the backlight partitions has a plurality of sub-partitions, each of the sub-partitions includes at least one of the light emitting elements;

the processor is further configured to: and independently controlling the brightness of the light-emitting elements in each sub-partition.

Optionally, the display device further includes: the diffusion plate is positioned on one side of the backlight source far away from the substrate and used for diffusing the light rays emitted by the backlight source;

wherein, in the backlight of a plurality of lamp plates including the concatenation, the lamp plate with first interval between the diffuser plate is greater than 0 and less than or equal to 6 mm.

Optionally, the ratio of the second distance between every two adjacent lamp panels to the first distance is greater than or equal to 1.2 and less than or equal to 8;

the second interval is close to on one lamp plate in every two adjacent lamp plates with the splicing seams and the distance between the light-emitting elements at the splicing seams on the other lamp plate.

Optionally, the light emitting element includes: a micro light emitting diode mini LED.

Optionally, the first brightness adjustment control includes: a plurality of brightness adjustment sub-controls in one-to-one correspondence with the plurality of backlight partitions; the first touch operation is a click operation aiming at a target sub-control in the plurality of brightness adjustment sub-controls; the processor is configured to:

determining a first brightness adjustment amount according to the received click operation aiming at the target sub-control;

and determining a target partition to be adjusted according to the received click operation aiming at the target sub-control, wherein the target partition is a backlight partition corresponding to the target sub-control in the plurality of backlight partitions.

Optionally, each of the brightness adjustment sub-controls includes: a first brightness increasing sub-control and a first brightness decreasing sub-control; the processor is configured to:

determining a first brightness increment according to the received click operation aiming at the first brightness increment control;

and determining a first brightness decrement according to the received click operation aiming at the first brightness decrement control.

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

Optionally, the touch control further includes: a second brightness adjustment control; the processor is further configured to:

determining a second brightness adjustment amount according to a received second touch operation aiming at the second brightness adjustment control;

and adjusting the brightness of the plurality of light-emitting elements in each backlight partition according to the second brightness adjustment amount.

Optionally, the second touch operation is a click operation for the second brightness adjustment control; the second brightness adjustment control comprises: a second brightness increasing sub-control and a second brightness decreasing sub-control; the processor is configured to:

determining a second brightness increment according to the received click operation aiming at the second brightness increment control;

and determining a second brightness decrement according to the received click operation aiming at the second brightness decrement control.

Optionally, the touch control further includes: displaying a brightness reset control; the processor is further configured to:

and resetting the brightness of the plurality of light-emitting elements in each backlight partition to reference brightness according to the received third touch operation aiming at the brightness resetting control.

Optionally, the touch control further includes: displaying a picture switching control; the processor is further configured to:

and controlling a display screen of the display device to switch and display the pictures with different colors according to the received fourth touch operation aiming at the picture switching control.

Optionally, the screen switching control includes: a first switching sub-control and a second switching sub-control; the processor is configured to:

controlling the display screen to switch and display frames with different colors according to a first switching sequence according to the received fourth touch operation aiming at the first switching sub-control;

controlling the display screen to switch and display frames with different colors according to a second switching sequence according to the received fourth touch operation aiming at the second switching sub-control;

wherein the first switching order is opposite to the color switching direction of the second switching order.

Optionally, the touch control further includes: programming a storage control; the display device further includes: a first drive circuit and a second drive 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 received fifth touch operation aiming at the programming storage control, programming and storing the brightness adjusted according to the first brightness adjustment quantity into the first driving circuit;

the first drive circuit is configured to: and controlling the second driving circuit to transmit driving current to the backlight source according to the stored brightness so as to drive a plurality of light-emitting elements in the backlight source to emit light.

Optionally, the touch control further includes: a brightness reading control; the processor is further configured to:

and displaying the brightness stored in the first driving circuit according to the received sixth touch operation aiming at the brightness reading control.

Optionally, the display device further includes: the brightness sensor is positioned on one side of the backlight source and is connected with the first driving circuit;

the brightness sensor is used for: detecting the light-emitting brightness of the plurality of light-emitting elements and transmitting the detected light-emitting brightness to the first driving circuit;

the first drive circuit is further configured to: and controlling 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.

In another aspect, a method for adjusting brightness of a backlight source in a display device is provided, the backlight source having a plurality of backlight partitions, each of the backlight partitions including a plurality of light emitting elements; the method comprises the following steps:

In still another aspect, a computer-readable storage medium is provided, in which a computer program is stored, the computer program being loaded and executed by a processor to implement the method for adjusting the brightness of a backlight in a display device according to the above aspect.

To sum up, the beneficial effects brought by the technical scheme provided by the embodiment of the present disclosure at least can include:

a display device and a method for adjusting brightness of a backlight source thereof are provided. The display device includes a processor and a backlight having a plurality of backlight partitions. The processor may display a first brightness adjustment control based on the adjustment start instruction, and may adjust the brightness of the plurality of light-emitting elements included in the target partition among the plurality of backlight partitions according to the received touch operation for the first brightness adjustment control. Therefore, compared with the conventional display device which can only adjust the overall brightness of the backlight, the display device provided by the embodiment of the disclosure has better flexibility in adjusting the brightness of the backlight.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a backlight provided in an embodiment of the present disclosure;

fig. 3 is a schematic structural diagram of a single lamp panel in a backlight provided by the embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a backlight partition provided in a backlight source according to an embodiment of the disclosure;

FIG. 5 is a schematic view of a backlight partition provided in another backlight source according to an embodiment of the disclosure;

FIG. 6 is a schematic diagram of a backlight partition provided in another backlight source according to an embodiment of the disclosure;

fig. 7 is a schematic diagram of a netlist of a single lamp panel in a backlight provided by an embodiment of the disclosure;

fig. 8 is a schematic structural diagram of another display device provided in the embodiment of the present disclosure;

FIG. 9 is a schematic view of a display screen including a backlight according to an embodiment of the disclosure;

fig. 10 is a schematic diagram of a different color switching screen provided by an embodiment of the disclosure;

fig. 11 is a schematic structural diagram of another display device provided in the embodiment of the present disclosure;

FIG. 12 is a schematic view of a display interface of another display screen provided by embodiments of the present disclosure;

fig. 13 is a schematic structural diagram of another display device provided in the embodiment of the present disclosure;

fig. 14 is a flowchart of a method for adjusting brightness of a backlight according to an embodiment of the disclosure;

fig. 15 is a flowchart of another brightness adjustment method for a display backlight source according to an embodiment of the disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present disclosure. As shown in fig. 1, the display device includes: a processor 01 and a backlight 02.

The backlight 02 includes a plurality of backlight partitions a1 (2 in the figure), that is, the backlight 02 may be divided into a plurality of partitions. Also, each backlight partition a1 may include a plurality of light emitting elements L1.

Optionally, the backlight 02 may be a mini LED backlight, and correspondingly, the light emitting element L1 may be a mini LED, which may also be called a sub-millimeter light emitting diode, and the size of the mini LED is generally between 50 micrometers (μm) and 500 μm, that is, greater than or equal to 50 μm and less than or equal to 500 μm. With continued reference to fig. 1, processor 01 may be connected to backlight 02, and processor 01 may be configured to perform the following operations:

(1) and responding to the adjustment starting instruction, and displaying the touch control.

Wherein, this touch control can include: a first brightness adjustment control. That is, first, when the user wants to adjust the luminance of the backlight 02, he or she may trigger the display device to enter a backlight luminance adjustment state through an operation such as touch control or voice control. At this time, the processor 01 may receive the adjustment starting instruction, and may further display a first brightness adjustment control J1 shown in fig. 1 for the user to touch.

For example, an entity key for starting adjustment of brightness may be set on the display device or a touch key for starting adjustment of brightness may be displayed on the display screen 03 of the display device, and a user may click the key to trigger the display device to enter a backlight brightness adjustment state, that is, to enable the processor 01 to receive an adjustment start instruction. The embodiment of the present disclosure does not limit the manner of triggering the adjustment start instruction. The click operation described in the embodiment of the present disclosure may include: single click, double click, or long press operations, etc., and the following embodiments will not be described in detail.

(2) And determining a first brightness adjustment amount according to the received first touch operation aiming at the first brightness adjustment control.

Then, the user may perform a touch operation, also referred to as a first touch operation, with respect to the displayed first brightness adjustment control J1. At this time, the processor 01 may receive the first touch operation, and may determine a first brightness adjustment amount for adjusting the brightness based on the first touch operation.

(3) And determining a target partition to be adjusted in the plurality of backlight partitions.

And, the processor 01 may also determine in advance a target partition whose brightness needs to be adjusted from among the plurality of backlight partitions a1 that the backlight 02 has. For example, the processor 01 may store a default backlight partition a1 to be adjusted in advance, and based on this, the processor 01 may determine the default backlight partition a1 as the target partition.

(4) And adjusting the brightness of the plurality of light-emitting elements in the target partition according to the first brightness adjustment amount.

Finally, the processor 01 may adjust the brightness of the plurality of light-emitting elements L1 in the predetermined target sub-area according to the predetermined first adjustment amount to realize the brightness adjustment for any one of the plurality of backlight sub-areas a 1.

In summary, embodiments of the present disclosure provide a display device including a processor and a backlight having a plurality of backlight partitions. The processor may display a first brightness adjustment control based on the adjustment start instruction, and may adjust brightness of a plurality of light emitting elements included in a target partition of the plurality of backlight partitions according to the received touch operation for the first brightness adjustment control. Therefore, compared with the conventional display device which can only adjust the overall brightness of the backlight, the display device provided by the embodiment of the disclosure has better flexibility in adjusting the brightness of the backlight.

Optionally, as can be seen with continued reference to fig. 1, the display device may generally further include a display screen 03, and the processor 01 may also be connected to the display screen 03. On this basis, the processor 01 may be configured to display a touch control on the display screen 03 in response to the received adjustment start instruction, such as displaying a first brightness adjustment control J1 shown in fig. 1. The following embodiments all take the example of displaying the touch control on the display screen 03 as an example. In addition, the display screen 03 may be an LCD display screen, which may also be referred to as an LCD panel.

Of course, in some embodiments, the display device may further be externally connected to a control device (e.g., a mobile terminal), and the processor may be connected to the control device and configured 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 embodiment of the disclosure.

Optionally, fig. 2 is a schematic structural diagram of a backlight provided in the embodiment of the present disclosure. As can be seen with reference to fig. 2, the backlight 02 described in the embodiments of the present disclosure may include a plurality of lamp panels 021 that are spliced, and each lamp panel 021 may have at least two backlight partitions a 1. That is, the backlight 02 in fig. 1 has a plurality of backlight partitions a1 corresponding to the plurality of lamp panels 021, and each lamp panel 021 may include a plurality of light emitting elements L1. In addition, the lamp panel 021 can also be called a mini LED lamp panel when the backlight 02 is a mini LED backlight. And, the backlight 02 formed by splicing the lamp panels 021 is generally applied to a large-sized LCD panel, for example, a 65-inch LCD panel.

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

For example, the backlight 02 shown in fig. 2 includes 8 lamp panels 021, which are respectively labeled as lamp panel 021-1 to lamp panel 021-8 in fig. 2. And, 8 lamp panels 021 shown in fig. 2 are arranged in 2 rows and 4 columns. On the basis of fig. 2, fig. 3 shows a schematic structural diagram of the lamp panel 021-1. Referring to fig. 3, the light board 021-1 includes 56 rows and 48 columns of light-emitting elements L1.

Optionally, on the basis of the concatenation of a plurality of lamp plates 021, a piece seam can be formed naturally between adjacent lamp plates 021, the gap that the concatenation formed promptly, also can be called the clearance. That is, referring to fig. 2, in the plurality of lamp panels 021 described in the embodiment of the present disclosure, an edge seam f1 may be provided between each two adjacent lamp panels 021.

Optionally, as can be seen from the schematic diagrams of the lamp panels 021-1 and 021-2 shown in fig. 4, each lamp panel 021 described in the embodiments of the present disclosure may have two backlight partitions a1, namely, a first backlight partition a1-1 and a second backlight partition a 1-2. The first backlight sub-section a1-1 may be adjacent to the seam f1 and located between the seam f1 and the second backlight sub-section a 1-2. That is, the first backlight sub-section A1-1 is closer to the patchwork f1 than the second backlight sub-section A1-2.

Optionally, as can be seen from the schematic structural diagram of the lamp panel 021-1 shown in fig. 5, each lamp panel 021 described in the embodiments of the present disclosure may further have a third backlight partition a1-3 and a fourth backlight partition a1-4 in addition to the first backlight partition a1-1 and the second backlight partition a 1-2. That is, each lamp panel 021 recited in the embodiments of the present disclosure may have four backlight partitions a 1.

The first backlight sub-section a1-1, the second backlight sub-section a1-2 and the third backlight sub-section a1-3 may be sequentially arranged along the first direction X, and the second backlight sub-section a1-2 and the fourth backlight sub-section a1-4 may be sequentially arranged along the second direction Y. Optionally, on the basis that a plurality of lamp panels 021 array were arranged, first direction X can be regarded as lamp panel row direction, and second direction Y can be regarded as lamp panel column direction.

Alternatively, as can be seen from fig. 5, the fourth backlight sub-section a1-4 and the first backlight sub-section a1-1 may also be considered to be sequentially arranged along the second direction Y, and the fourth backlight sub-section a1-4 and the third backlight sub-section a1-3 may also be considered to be sequentially arranged along the second direction Y. That is, for the structure shown in FIG. 4, the first backlight sub-section A1-1 and the third backlight sub-section A1-3 may be considered to be located to the left and right of the second backlight sub-section A1-2, respectively, adjacent to (i.e., adjacent to and in contact with) the second backlight sub-section A1-2. The fourth backlight partition A1-4 may be considered to be located at the lower side of the entire partition consisting of the second backlight partition A1-2, the first backlight partition A1-1 and the third backlight partition A1-3, and to be contiguous with each of the second backlight partition A1-2, the first backlight partition A1-1 and the third backlight partition A1-3. The area of the second backlight partition a1-2 is the largest. Of course, in some embodiments, the fourth backlight sub-section a1-4 may be arranged only with the second backlight sub-section a1-2 in the order of the second direction Y, the first backlight sub-section a1-1, the entire sub-section composed of the fourth backlight sub-section a1-4 and the second backlight sub-section a1-2, and the third backlight sub-section a1-3 in the order of the first direction X.

Referring to fig. 3 again, the light emitting elements L1 located at the 1 st to 54 th rows and at the 1 st and 2 nd columns may be divided into backlight partitions a 1-1; dividing the respective light emitting elements L1 located at the 1 st to 54 th rows and at the 47 th and 48 th columns into backlight partitions a 1-3; dividing each light emitting element L1 located in the 55 th row and the 56 th row and located in the 1 st column to the 48 th column into backlight partitions a 1-4; and the remaining individual light emitting elements L1 (i.e., individual light emitting elements L1 located in the 1 st to 54 th rows and located in the 3 rd and 46 th columns) are divided into backlight partitions a 1-4. The division is only illustrative and not limiting.

On the basis of FIG. 5, FIG. 6 shows a schematic structural diagram of lamp panel 021-1, lamp panel 021-2, lamp panel 021-5 and lamp panel 021-6 in the backlight 02 shown in FIG. 2. Referring to fig. 6, in the first direction X, of every two adjacent lamp panels 021 (e.g., the lamp panel 021-1 and the lamp panel 021-2), the first backlight partition a1-1 of one lamp panel and the third backlight partition a1-3 of the other lamp panel may be adjacent. In the second direction Y, of every two adjacent lamp panels 021 (e.g., the lamp panel 021-1 and the lamp panel 021-5), the fourth backlight partition a1-4 of one lamp panel and the fourth backlight partition a1-4 of the other lamp panel may be adjacent. That is, each lamp panel 021 has four backlight partitions a1, a fourth backlight partition a1-4 is adjacent to a seam f1 extending in the first direction X, and the first backlight partition a1-1 or the third backlight partition a1-3 is adjacent to a seam f1 extending in the second direction Y.

Optionally, in order to independently drive each lamp panel 021 to emit light, at least one Integrated Circuit (IC) may be disposed on one side of each lamp panel 021, and the IC is connected to the control circuit at the host end and the light emitting element L1 on the lamp panel 021, so as to transmit a 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 following embodiments refer to the control circuit as a first driving circuit, the driving IC as a second driving circuit, and the first driving circuit and the second driving circuit may be collectively referred to as a backlight driving circuit.

Alternatively, each backlight partition a1 may actually have a plurality of sub-partitions, each sub-partition may include at least one light emitting element L1, and the driving IC may individually supply driving current to the light emitting elements L1 of each sub-partition, so as to achieve the purpose of local dimming (local dimming). In other words, processor 01 may also be used to independently control the brightness of the light-emitting elements in each sub-partition, respectively.

For example, based on fig. 2 and 5, taking the lamp panel 021-1 as an example, fig. 7 also shows a netlist diagram of a single lamp panel 021-1. Referring to FIG. 7, it can be seen that each 4 mini LEDs (e.g., 1-1L1, 2-1L1, 3-1L1 and 4-1L1) can be grouped together in a sub-partition, and the lamp panel 021-1 shown in FIG. 7 comprises 672 groups in total. Referring to FIG. 5, the first backlight partition A1-1 corresponds to the area where 1-1L 1-3-7L 1 is located; the fourth backlight subarea A1-4 corresponds to the area where 4-7L1 to 4-7L24 are located; the third backlight subarea A1-3 corresponds to an area where 1-1L 24-3-7L 24 is located; the second backlight partition a1-2 corresponds to the remaining area.

Fig. 2 to 7 are only schematic illustrations. In some other embodiments, the backlight 02 may also include a greater or lesser number of lamp panels 021. Each lamp panel 021 may also have a greater or lesser number of backlight partitions a 1. Each light panel 021 may also include a greater or lesser number of light-emitting elements L1. And the single lamp panel netlist can also be in other forms. The embodiments of the present disclosure do not limit the above parameters.

In the process of assembling the lamp panels 021 to form the backlight 02, the tolerance accumulation and/or the positioning accuracy are poor, and the measured value of the distance between two adjacent lamp panels 021 often deviates from an ideal design value, so that the brightness of the light-emitting element L1 close to the position of the abutted seam f1 is abnormal, and the display effect of the LCD panel is poor. The distance between the panels refers to a distance between a light emitting element L1 on one panel 021 near the seam f1 and a light emitting element on the other panel 021 near the seam f1 in two adjacent panels 021.

Taking the lamp panel 021-1 and the lamp panel 021-2 in fig. 2 as an example, with reference to fig. 3 and 6, under the influence of tolerance accumulation and/or poor positioning accuracy, a deviation may occur between the light-emitting element L1 in the third backlight partition a1-3 of the lamp panel 021-1 and the light-emitting element L1 in the first backlight partition a1-1 of the lamp panel 021-2, and the deviation may further cause an abnormality in the light-emitting luminance of the light-emitting element L1 in the third backlight partition a1-3 of the lamp panel 021-1 and the light-emitting element L1 in the first backlight partition a1-1 of the lamp panel 021-2, thereby causing an abnormality in the display effect of the LCD panel. For example, it causes a significant vertical dark line (i.e., low brightness) or a vertical bright line (i.e., high brightness) between the third backlight partition A1-3 of the lamp panel 021-1 and the first backlight partition A1-1 of the lamp panel 021-2. The above display abnormality problem is particularly noticeable under a low light mixing distance (OD) condition, where OD is: the distance between the lamp panel 021 included in the backlight 02 and the diffuser plate included in the display device is generally a vertical distance. The low light mixing distance means a light mixing distance of more than 0 and 6 millimeters (mm) or less.

For example, through testing, under the test condition that a 65-inch LCD panel is at a light mixing distance of 5mm, the diameter tolerance of the positioning columns for calibrating the distance between the adjacent lamp panels 021 is generally about ± 0.1mm, and the distance tolerance between every two adjacent positioning columns is also about ± 0.1 mm. In the lamp panel row direction X, if the distance between every two adjacent lamp panels 021 can be controlled to be 6.8mm, 6.9mm or 7mm, the luminance of the light-emitting element L1 in each backlight partition a1 of the backlight source 02 is normal, and the display effect of the LCD panel is normal. If the distance between every two adjacent lamp panels 021 is between 6.6mm and 6.7mm, the LCD panel has bright line abnormity; and if the distance between every two adjacent lamp panels 021 is 7.1mm, the LCD panel has dark line abnormity. It can also be seen from the test results that slight variations in the pitch cause abnormal display problems in the LCD panel.

And, through testing, the driving circuits outputted by the driving ICs in the above embodiments actually work have a difference, which is generally about ± 3%. The difference is the same as the seam interval, brightness difference exists between the lamp panels, and color difference exists in the display effect of the LCD panel in human vision.

In the embodiment of the present disclosure, the brightness of the light emitting element L1 in each backlight partition a1 is independently and flexibly adjusted, so that the problem of poor display effect caused by the above-mentioned patchwork space or current difference can be solved, and the good display effect of the LCD panel is ensured. For example, the uniformity of the display screen of the LCD panel is ensured to be better.

And, as described in the above embodiment, in combination with fig. 8, the display device may further include: a diffuser plate B1 located on the side of the backlight 02 remote from the substrate 01, the diffuser plate B1 may be used to diffuse the light emitted by the backlight 02. Moreover, the first distance d1 between the lamp panel 021 and the diffusion plate B1 included in the backlight 02 may be greater than 0 and less than or equal to 6mm, that is, between 0 and 6 mm. The first pitch d1 is the light mixing distance OD described in the above embodiments.

On this basis, the ratio (i.e., d2/d1) of the second distance d2 between each two adjacent lamp panels 021 to the first distance d1 may be greater than or equal to 1.2 and less than or equal to 8, i.e., between 1.2 and 8. The second distance d2 is a distance between the light emitting element L1 on one lamp panel 021 near the seam f1 and the light emitting element L1 on the other lamp panel 021 near the seam f1 in every two adjacent lamp panels 021 having seams. That is, the second distance d2 is the distance between two adjacent lamp panels 021 in the above embodiment.

In other words, the light-mixing distance OD may be between 0 mm and 6mm, and the distance between the plates may be between 4mm and 8 mm. For example, the light mixing distance OD may be set equal to 5mm, and the inter-plate distance may be set equal to 7 mm. On the basis of the above distance setting, tests prove that the luminance of the backlight source 02 can be improved to a certain extent, and the display effect of the display device is ensured to be good.

Certainly, in some embodiments, when the lamp panels 021 are assembled to form the backlight 02, the machine vision positioning detection technology is also used to accurately position the positions of the lamp panels 021, so that the distance between adjacent lamp panels 021 at the seam f1 can be strictly controlled according to a design value, and the display effect of the LCD panel is better. However, the machine vision positioning detection technology needs to invest in expensive positioning equipment, so that the cost is high; the positioning process is time-consuming, the efficiency is low, and due to the fact that the lamp panel needs to be pasted with the gum during positioning, the later maintainability is poor; and the problem of chromatic aberration caused by current difference cannot be solved, and the application scene is relatively limited.

On the basis of fig. 2 to 7, with continued reference to fig. 9, it can be seen that the first brightness adjustment control J1 according to the embodiment of the present disclosure may include: a plurality of brightness adjustment sub-controls J11 in one-to-one correspondence with the plurality of backlight partitions a 1. For example, each light panel 021 may have 4 backlight partitions a1-1 to a1-4 each corresponding to a brightness adjustment sub-control J11. And, the first touch operation may be a click operation (e.g., a single click, a double click, or a long press) for a target sub-control of the plurality of brightness adjustment sub-controls J11. Of course, in some other embodiments, the first touch operation may also be an operation of clicking the brightness adjustment sub-control J11 and inputting specific brightness, and the embodiment of the present disclosure does not limit the manner of the first touch operation.

Also, referring to fig. 9, it can be seen that the display screen 03 may have a plurality of display regions B1 corresponding to the plurality of backlight partitions a1 one to one, and the brightness adjustment sub-control J11 corresponding to each backlight partition a1 may be located in the display region B1 corresponding to the backlight partition a 1. And, each display region B1 may be backlit by a corresponding one of the backlight partitions a 1. For each display region B1, the backlight provided by the corresponding one of the backlight partitions a1 may refer to: the backlight is provided only by the backlight sub-section a1 uniquely corresponding thereto, or is provided by the backlight diffusion light provided by the backlight sub-section a1 uniquely corresponding thereto and the backlight diffusion light provided by the backlight sub-section a1 of the adjacent display area B1. Therefore, a user can reliably observe the backlight partition A1 where the abnormal brightness phenomenon occurs, and pertinently, quickly and reliably click the brightness adjusting sub-control J11 displayed on the display area B1 where the backlight partition A1 is located, so that the brightness of the light-emitting element L1 in the backlight partition A1 can be flexibly adjusted, and the user experience is improved. Of course, in some other embodiments, the backlight partition a1 of each lamp panel 021 and the corresponding brightness adjustment sub-control J11 may also be displayed directly on the display screen 03 in the form of a table. In addition, as can be seen with reference to fig. 9, based on the above, the processor 01 may further display the current brightness (e.g., 127) of each backlight partition a1 on the display screen 03 for the user to view.

Based on the structure shown in fig. 9, the processor 01 according to the embodiment of the present disclosure may be configured to: and determining a first brightness adjustment amount according to the received click operation aiming at the target sub-control.

Optionally, the processor 01 may be configured to obtain the number of times of the click operation on the target sub-control, and flexibly determine the first brightness adjustment amount according to the number of times.

For example, assuming that the target sub-control brightness adjustment amount is increased by 1 by clicking once, if the number of times determined by the processor 01 is 4, the first adjustment amount may be determined to be 4. Assuming that the target sub-control brightness adjustment amount is increased by 2 once, if the number of times determined by the processor 01 is 4, the first adjustment amount may be determined to be 8. Similarly, assuming that the brightness adjustment amount of the target sub-control is decreased by 1 by clicking once, if the number of times determined by the processor 01 is 4, it may be determined that the first adjustment amount is-4. Assuming that the target sub-control brightness adjustment amount is decreased by 2 once by clicking, if the number of times determined by the processor 01 is 2, the first adjustment amount may be determined to be-4.

And, the processor 01 described in the embodiments of the present disclosure may be configured to: and determining a target partition to be adjusted according to the received click operation aiming at the target sub-control. The determined target partition may be a backlight partition corresponding to the target sub-control in the plurality of backlight partitions. That is, after the user clicks one of the brightness adjustment sub-controls J11 (i.e., a target sub-control) in the multiple brightness adjustment sub-controls J11, the processor 01 may obtain the backlight partition a1 corresponding to the brightness adjustment sub-control J11, and may determine the backlight partition a1 as a target partition to be adjusted in brightness.

For example, referring to fig. 9, if the brightness adjustment sub-control J11 clicked by the user is the brightness adjustment sub-control J11 corresponding to the third backlight partition a1-3 in the lamp panel 021-1, the processor 01 may determine the backlight partition a1-3 of the lamp panel 1 as the target partition.

Optionally, as can be seen with continued reference to fig. 9, each brightness adjustment child control J11 may include: a first brightness increasing sub-control J11+ and a first brightness decreasing sub-control J11-. On this basis, the processor 01 may be configured to:

determining a first brightness increment according to the received click operation aiming at the first brightness increment control; and determining a first brightness decrement according to the received click operation aiming at the first brightness decrement control.

Wherein the first brightness increment may be greater than 0. The first brightness decrement may be less than 0. For example, assuming that the first brightness increasing sub-control J11+ is clicked once and the brightness is increased by +1, if the processor 01 determines that the number of click operations for the first brightness increasing sub-control J11+ is 3, it may determine that the first brightness is increased by 3. Assuming that the first brightness minus sub-control J1-is clicked once, the brightness increment is-1, if the processor 01 determines that the number of click operations for the first brightness minus sub-control J1-is 1, the first brightness decrement may be determined to be-1.

Processor 01 may then be configured to accumulate the first brightness increment and the first brightness decrement to obtain a first brightness adjustment amount. If, for example, assuming that the first brightness increment is 3 and the first brightness decrement is-1, the processor 01 may calculate the first brightness adjustment amount as: 3+ (-1) ═ 2. Assuming that the first brightness increment is 3 and the first brightness decrement is-5, the processor 01 may calculate a first brightness adjustment amount as: 3+ (-5) ═ -2. It can also be determined from this that the first brightness adjustment amount may be greater than 0, or may be less than 0. Of course, if only the first brightness increasing sub-control J1+ is clicked, the first brightness adjustment amount is greater than 0; if only the first brightness minus sub-control J1 is clicked, the first brightness adjustment amount is less than 0.

Of course, in some other embodiments, the brightness adjustment sub-control J11 may not have a distinction between the first brightness increasing sub-control J11+ and the first brightness decreasing sub-control J11-. On this basis, one click operation for the brightness adjustment sub-control J11 may adjust the first brightness by either +1 or-1. The first brightness adjustment amount may 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 1 multiple times, if the first brightness adjustment reaches the first adjustment threshold, the processor 01 clears the first brightness adjustment and starts-1. After accumulating and subtracting 1 for multiple times, if the first brightness adjustment amount reaches the second adjustment amount threshold, the processor 01 clears the first brightness adjustment amount and starts + 1. And so on.

As can be seen from the above description of the embodiments, after determining the first brightness adjustment amount and the target partition, the processor 01 may be configured to: the brightness of the plurality of light emitting elements in the target section is adjusted according to the first brightness adjustment amount.

For example, the luminance of the plurality of light-emitting elements L1 in the target partition may correspond to a luminance value, which may be the average of the luminances of the plurality of light-emitting elements L1, and thus may also be considered as adjusting the luminance of the target partition. On this basis, the processor 01 may acquire the initial luminance of the target section that has not been adjusted in advance, and then may add the first luminance adjustment amount on the basis of the initial luminance so that the luminance of the target section reaches the target luminance, implementing the adjustment of the luminance of the plurality of light emitting elements L1 in the target section.

For example, if the first luminance adjustment amount is larger than 0, it is considered that the luminance of the plurality of light emitting elements L1 in the target division is increased. If the first luminance adjustment amount is less than 0, it may be considered to decrease the luminance of the plurality of light emitting elements L1 in the target section. As can be seen from the above description, the purpose of increasing the brightness can be achieved only by clicking the first brightness increasing sub-control J1+ and the first brightness increasing sub-control J1+ of the first brightness decreasing sub-control J1-; and the purpose of reducing the brightness can be realized only by clicking the first brightness increasing sub-control J1+ and the first brightness decreasing sub-control J1-in the first brightness increasing sub-control J1-.

Alternatively, the luminance of the light-emitting elements L1 in the target partition may correspond to a plurality of luminance values. On this basis, the brightness adjustment sub-control J1 corresponding to each backlight partition a1 may be set to include sub-controls corresponding to a plurality of brightness values one to one, so as to achieve flexible adjustment of the brightness values.

Optionally, as can be seen with continued reference to fig. 9, the touch control described in the embodiment of the present disclosure may further include: and a second brightness adjustment control Num. That is, in conjunction with fig. 9, processor 01, may also be configured to: in response to the adjustment start instruction, the second brightness adjustment control Num is displayed on the display screen 03. And the controller is used for determining a second brightness adjustment amount according to the received second touch operation aiming at the second brightness adjustment control Num.

Optionally, as can be seen with continued reference to fig. 9, the second brightness adjustment control Num, like the first brightness adjustment control J1, may include: a second brightness increasing sub control Num + and a second brightness decreasing sub control Num-. And, like the first touch operation, the second touch operation may also be a click operation for the second brightness adjustment control Num. In some other embodiments, the second touch operation may also be an operation of clicking the second brightness adjustment control Num and inputting specific brightness, and the second touch operation is not limited in the embodiments of the present disclosure.

On this basis, the processor 01 described in the embodiment of the present disclosure may be configured to: determining a second brightness increment according to the received click operation aiming at the Num + sum of the second brightness increment control; and determining a second brightness decrement according to the received click operation aiming at the second brightness decrement control Num-.

Wherein the second brightness increment may be greater than 0. The second brightness decrement may be less than 0. If, for example, assuming that the second brightness increasing sub control Num +, the brightness increment +1 is clicked once, if the processor 01 determines that the number of times of the clicking operations for the second brightness increasing sub control Num + is 5, it may determine that the second brightness increment is 5. Assuming that the second brightness increasing sub control Num +, the brightness increment is-1, is clicked once, if the processor 01 determines that the number of times of the clicking operations for the second brightness increasing sub control Num + is 2, it may be determined that the second brightness decrement is-2. Specific implementations may refer to the above-described manner of determining the first brightness increment and the first brightness decrement.

Thereafter, the processor 01 may also be configured to: and accumulating the second brightness increment and the second brightness decrement to obtain a second brightness adjustment quantity. If, for example, assuming that the second brightness increment is 5 and the second brightness decrement is-2, the processor 01 may calculate a second brightness adjustment amount as: 5+ (-2) ═ 3. Assuming that the second brightness increment is 2 and the first brightness decrement is-4, the processor 01 may calculate a second brightness adjustment amount as: 2+ (-4) ═ 2. It can also be determined from this that the second brightness adjustment amount may be greater than 0, or may be less than 0. Of course, if only the second brightness increasing sub-control Num + is clicked, the second brightness adjustment amount is greater than 0; if only clicking the second brightness minus sub control Num-, the second brightness adjustment amount is less than 0.

Of course, in some other embodiments, the second brightness adjustment control Num may not have a distinction between the second brightness increasing sub-control Num + and the second brightness decreasing sub-control Num-as with the brightness adjustment sub-control J1, and the one-click operation for the second brightness adjustment control Num may adjust the second brightness by + 1. And the second brightness adjustment amount may 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 1 is accumulated for multiple times, if the second brightness adjustment quantity reaches the first adjustment quantity threshold value, the second brightness adjustment quantity is cleared, and-1 is started. After the accumulation and subtraction for 1 time, if the second brightness adjustment amount reaches a second adjustment amount threshold value, the second brightness adjustment amount is cleared, and +1 is started. And so on.

After determining the second brightness adjustment amount, the processor 01 may be further configured to: the luminance of the plurality of light emitting elements L1 in each backlight partition a1 is adjusted according to the second luminance adjustment amount.

For example, still taking an example that one backlight partition a1 corresponds to one brightness value, the processor 01 may also obtain the initial brightness of each backlight partition a1 that has not been adjusted in advance, and then may add the second brightness adjustment amount to the initial brightness of each backlight partition a1 based on the initial brightness, thereby implementing simultaneous and uniform adjustment of the brightness of each backlight partition a 1.

For example, if the second luminance adjustment amount is greater than 0, it may be considered that the luminance of the light emitting elements L1 in each backlight partition a1 is increased at the same time. If the second luminance adjustment amount is less than 0, it may be considered to simultaneously decrease the luminance of the plurality of light emitting elements L1 in each backlight partition a 1. As can be seen from the above description, the purpose of increasing the brightness can be achieved only by clicking the second brightness increasing sub control Num + of the second brightness increasing sub control Num + and the second brightness decreasing sub control Num-; the aim of reducing the brightness can be achieved only by clicking the second brightness increasing sub control Num + and the second brightness decreasing sub control Num-in the second brightness increasing sub control Num-.

As can be seen from the above description of the embodiments, in the embodiment of the present disclosure, the second brightness adjustment control Num is actually provided for the processor 01 to adjust the overall brightness of the backlight 02 uniformly and simultaneously. The first brightness adjustment control J1 is provided for the processor 01 to independently adjust the brightness of the plurality of light-emitting elements L1 included in each backlight partition a1 in the backlight 02.

Optionally, as can be seen with continued reference to fig. 9, the touch control described in the embodiment of the present disclosure may further include: and a second brightness adjustment control Num. That is, in conjunction with fig. 9, processor 01, may also be configured to: in response to the adjustment start instruction, a brightness Reset control Reset is displayed on the display screen 03. And resetting the luminances of the plurality of light-emitting elements L1 in each backlight partition a1 to the reference luminance according to the received third touch operation for the luminance Reset control Reset.

For example, the third touch operation may also be a click operation for the brightness resetting control Reset, as in the first touch operation. When the user wants to Reset the luminances of the light emitting elements L1 in each backlight partition a1 to the reference luminance, the luminance Reset control Reset can be clicked. At this time, the processor 01 may receive a third touch operation for the brightness resetting control Reset, and may quickly and reliably Reset the brightness of the light-emitting element L1 in each backlight partition a1 of the backlight source 01 to the same reference brightness from the initial brightness thereof according to the third touch operation. On this basis, the reference luminance may be a fixed value stored in advance in the processor 01. For example, assuming that the reference luminance is 128, the current luminance of the light emitting elements L1 in the respective backlight partitions a1 is as shown on the display screen in fig. 9. Then, when the user clicks the brightness Reset control Reset, processor 01 may Reset the current brightness of light-emitting element L1 in each backlight partition a1 to 128.

Of course, in some other embodiments, the third touch operation may also be an operation of clicking the brightness resetting control Reset and inputting the reference brightness. In addition, the processor 01 may receive the reference luminance input by the user without storing the reference luminance in advance. The third touch operation mode is not limited in the embodiments of the present disclosure.

Optionally, as can be seen with continued reference to fig. 9, the touch control described in the embodiment of the present disclosure may further include: and (5) switching the control Color of the picture. That is, in conjunction with fig. 9, processor 01, may also be configured to: and responding to the adjustment starting instruction, and displaying a picture switching control Color on the display screen 03. And the display screen 03 is controlled to switch and display the pictures with different colors according to the received fourth touch operation for the picture switching control Color.

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

Alternatively, the picture of the different color may be a fixed picture stored in the processor 01 in advance. For example, the picture generally includes four colors of a pure white picture, a pure red picture, a pure green picture and a pure blue picture as shown in fig. 10. Of course, 50% gray frames may be included, with the display displaying a white frame by default. And, the switching order may also be stored in the processor 01 in advance.

If the current display frame of the display screen 03 is a pure white frame, and the switching sequence is a pure white frame, a pure red frame, a pure green frame, or a pure blue frame, the processor 01 may control the display screen 03 to switch from a pure white frame to a pure red frame after the user clicks the frame switching control Color once, and control the display screen 03 to switch from a pure red frame to a pure green frame after clicking the frame switching control Color once again, and so on. The purpose of switching and displaying different color pictures is as follows: after the user watches and adjusts the brightness, whether the display effect of the display screen 03 is better when the display screen displays the pictures with different colors or not is judged. If the display effect of the display screen 03 displaying the pure green picture is still not good after the primary adjustment, the brightness can be fine-tuned for the pure green picture for the second time.

Optionally, as can be seen with continued reference to fig. 9, the screen switching control Color may include: a first switching sub-control, Color +, and a second switching sub-control, Color-. On this basis, the processor 01 described in the embodiment of the present disclosure may be configured to:

and controlling the display screen 03 to switch and display the pictures with different colors according to the first switching sequence according to the received fourth touch operation aiming at the first switching sub-control Color +. And controlling the display screen 03 to switch and display the pictures with different colors according to a second switching sequence according to the received fourth touch operation aiming at the second switching sub-control Color-. Wherein the color switching direction of the first switching sequence is opposite to that of the second switching sequence. Thus, the flexibility of switching the picture can be improved.

Taking the example that the pictures with different colors include the pure white picture, the pure red picture, the pure green picture and the pure blue picture shown in fig. 10, assuming that the first switching sequence is to switch from the pure white picture shown in fig. 10 to the pure red picture to the pure green picture to the pure blue picture in sequence, the second switching sequence is to switch from the pure blue picture shown in fig. 10 to the pure green picture to the pure red picture to the pure white picture in sequence. If the current displayed picture of the display screen 03 is a pure green picture, and the user clicks the first switching sub-control Color + once, the processor 01 may control the display screen 03 to switch from the pure green picture to a pure blue picture. If the current displayed picture of the display screen 03 is a pure green picture and the user clicks the second switching sub-control Color-once, the processor 01 may control the display screen 03 to switch from the pure green picture to a pure red picture.

Of course, in some other embodiments, the screen switching control Color does not have a score of the first switching sub-control Color + and the second switching sub-control Color-, and accordingly, only one Color switching order may be included. The processor 01 may control the display screen 03 to switch and display a Color according to one click operation for the picture switching control Color. Assuming that the pictures with 4 different colors are included in total, after the picture with the 1 st color is switched to the picture with the 4 th color, the display screen 03 can be controlled to be switched from the picture with the 4 th color to the picture with the 1 st color, and so on.

Optionally, with reference to fig. 11, the display device according to the embodiment of the present disclosure may further include: a first drive circuit 04 and a second drive circuit 05. The processor 01 may be further connected to the first driving circuit 04, the first driving circuit 04 may be further connected to the second driving circuit 05, and the second driving circuit 05 may be further connected to the backlight 02.

On this basis, as can be seen by continuing to refer to fig. 9, the touch control described in the embodiment of the present disclosure may further include: and programming the saving control BS. That is, in conjunction with fig. 9, processor 01, may also be configured to: in response to the adjustment start instruction, a programming save control BS is displayed on the display screen 03. And the brightness programming module is used for programming and storing the brightness adjusted according to the first brightness adjustment quantity into the first driving circuit 04 according to the received fifth touch operation aiming at the programming storage control BS.

Optionally, like the first touch operation, the fifth touch operation may also be a click operation for the programming save control BS. After the user has completed adjusting the brightness of the light emitting elements L1 in the respective backlight partition A1, the burn save control BS can be clicked. At this time, the processor 01 may receive a fifth touch operation for the programming saving control BS, and may program and store the adjusted brightness into the first driving circuit 04 according to the fifth touch operation. As an example, the first driving circuit 04 may be a programmable array logic (FPGA) circuit. FPGA circuits typically include memory (flash), which may also be referred to as registers. Processor 01 may store the adjusted brightness in the register.

Optionally, referring to fig. 12, the programming save control BS may include: and the Burning control and the saving control Save are independent from each other. After the brightness is adjusted, a user can perform touch operation on the Burning control firstly and then perform touch operation on the saving control Save. The touch operation described herein may be a click operation. On this basis, for the processor 01, the processor 01 may be configured to first program the adjusted brightness into the first driving circuit 04 according to the received touch operation for programming the control Burning, and then store the programmed brightness into the register according to the received touch operation for the saving control Save. Then, the user can trigger the display device to exit the brightness adjusting state through touch control and/or voice operation, and the display screen displays normally. For example, a closing control for brightness adjustment may be displayed on the display screen, and a user may trigger the display device to exit brightness adjustment by clicking the closing control.

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

For example, the first driving circuit 04 may transmit a duty ratio signal capable of indicating the stored luminance to the second driving circuit 05 to instruct the second driving circuit 05 to flexibly output the driving current to light the backlight 02 based on the luminance. In other words, in the normal display state of the display panel 03, the backlight 02 can be flexibly driven to emit light based on the adjusted brightness, and the light emitting effect of the backlight 02 can be improved. For example, if the luminance stored in the first driver circuit 04 satisfies the result shown in fig. 9, the first driver circuit 04 and the second driver circuit 05 can turn on the backlight 02 based on the result shown in fig. 9 when they normally operate in cooperation with driving the backlight 01.

It should be noted that, in order to facilitate the user to view the brightness, when entering the brightness adjustment, the processor 01 may display decimal brightness parameters, such as "127" and "126" shown in fig. 9, on the display screen. Since the FPGA circuit generally stores hexadecimal data, the luminance finally programmed and stored to the FPGA circuit (i.e., the first driving circuit 04) may be hexadecimal. If the adjusted luminance is a decimal number "124", the luminance stored in the first driving circuit 04 may be a hexadecimal number "7 c".

And, processor 01 may be integrated in a system-on-a-chip (SOC). The SOC may be communicatively coupled to the FPGA circuitry via the I2C protocol. The SOC is used for reading and writing data in the FPGA circuit. Namely, reading data in the FPGA flash, and programming the adjusted brightness into an FPGA circuit for curing.

Alternatively, as can be seen from the above embodiments, each backlight partition a1 may have a plurality of sub-partitions, each of which includes at least one light emitting element. Wherein the second driving circuit 05 may have a plurality of current transmission channels, the second driving circuit 05 may be configured to: and driving current is respectively transmitted to the plurality of sub-partitions through the plurality of current transmission channels, so that the aim of local dimming is fulfilled.

Optionally, as can be seen with continued reference to fig. 9, the touch control described in the embodiment of the present disclosure may further include: the brightness reading control Read. That is, in conjunction with fig. 9, processor 01, may also be configured to: and responding to the adjustment starting instruction, and displaying a brightness reading control Read on the display screen. And the display unit is used for displaying the brightness stored in the first driving circuit 01 according to the received targeted sixth touch operation so as to be reliably viewed by a user and improve user experience. With reference to fig. 9, the stored luminance may be displayed on the display screen 03, or as described in the above embodiment, the stored luminance may be displayed on a control device externally connected to the display device.

Optionally, referring to fig. 13, the display device according to the embodiment of the present disclosure may further include: the luminance sensor S1 and the luminance sensor S1 may be located on the backlight 02 side and connected to the first driving circuit 04 (not shown).

The brightness sensor S1 may be configured to: the light emission luminance of the plurality of light emitting elements L1 is detected, and the detected light emission luminance is transmitted to the first drive circuit 04. On this basis, the first driving circuit 04 is further configured to: based on the light emission luminance transmitted from the luminance sensor S1, the second drive circuit 05 is controlled to correct the drive current transmitted to the backlight 02. For example, if the backlight 02 is driven to emit light based on the luminance adjusted according to the first luminance adjustment amount, the luminance of the backlight 02 still exhibits an abnormality. The brightness sensor S1, the first driving circuit 04 and the second driving circuit 05 cooperate with each other to achieve brightness correction, so that the display effect of the display device can be better ensured.

Of course, in some other embodiments, the brightness adjustment of the backlight partition a1 may also be realized directly by the cooperation of the brightness sensor S1, the first driving circuit 04 and the second driving circuit 05. In this case, the brightness adjustment method does not need to confirm the physical size each time the lamp panel is assembled to manufacture the backlight, and the brightness adjustment method can be debugged after the assembly is completed. However, the installation cost of the luminance sensor S1 is high, and it is not suitable for mass production.

Alternatively, referring to fig. 2 and 5, the backlight 02 described in the embodiments of the present disclosure may include a plurality of lamp panels 021 that are spliced, and each lamp panel 021 may have at least two backlight partitions a 1. On this basis, piece f1 is just had between every two adjacent lamp plates 021. In the embodiment of the disclosure, as shown in fig. 12, the brightness sensor S1 may be located at the seam of the lamp panels 021 to reliably detect the brightness of the lamp panels 021 near the seam f1, and accordingly, the brightness sensor S1 may be included. Because the brightness at the abutted seam f1 is easy to be abnormal, the brightness abnormality can be corrected in time, and the good display effect can be ensured.

Optionally, all the controls described in the above embodiments of the present disclosure may be virtual controls shown in fig. 9 and displayed on the display screen. Of course, in some other embodiments, the one or more controls may also be physical buttons disposed on the display device. And, with reference to fig. 2, fig. 9 and fig. 12, in the embodiment of the present disclosure, the backlight 02 includes a plurality of lamp panels 021 that can be arranged in an array on the display screen 03. The second brightness adjusting control (comprising Num + and Num-), the brightness resetting control Reset, the picture switching control (comprising Color + and Color-), the Burning control Burning and the saving control Save can be sequentially arranged along the lamp panel row direction X, and are sequentially arranged along the lamp panel column direction Y with the plurality of lamp panels. Of course, each control and the lamp panel 021 may also satisfy other arrangement modes, and this arrangement mode is not limited in the embodiments of the present disclosure.

In the embodiment of the present disclosure, the brightness adjustment method executed by the processor 01 may be performed in a test stage before the display device is shipped from a factory. Alternatively, the brightness adjustment method executed by the processor 01 may be performed after the display device is shipped, and the user described in the above embodiment may be a person using the display device.

As can be seen from the above description of the embodiments and the schematic interface diagrams of the display screen 03 shown in fig. 9 and 12, the processor 01 provided in the embodiments of the present disclosure may be configured to perform the following operations:

(1) reset function: the luminances of the light emitting elements L1 in the respective backlight partitions a1 are all reset to the same reference luminance, such as 128.

(2) Read function: the brightness currently stored in the register of the first driver circuit 04 is read.

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

(4) J11 +/J11-Brightness partition Regulation function: the luminances of the plurality of light emitting elements L1 in the respective backlight partitions a1 are individually adjusted based on the first luminance adjustment amount.

(5) Num-/Num + brightness integral regulation function: the luminances of the plurality of light emitting elements L1 in each backlight partition a1 are uniformly and simultaneously adjusted based on the second luminance adjustment amount.

(6) Burning write function: and programming the adjusted brightness into the FPGA for curing.

(7) Save function: the adjusted brightness is preserved.

On the basis of the above, with reference to fig. 6 and 9, the following example is given for the content of adjusting the brightness:

when a user observes that a vertical bright line appears between the abutted seams f1 of two adjacent lamp panels 021 in a first direction X, namely in the lamp panel row direction, a first touch operation can be performed on the third backlight partition a1-3 and the first brightness subtraction sub-control J11-of the first backlight partition a1-1 in the two adjacent lamp panels 021, so that the brightness of the first backlight partition a1-1 and the brightness of the third backlight partition a1-3 are reduced, and the purpose of improving the vertical bright line is achieved. For example, suppose that the seams f1 between the lamp panel 021-2 and the adjacent lamp panel 021-1 and the seams f1 between the lamp panel 021-2 and the adjacent lamp panel 021-3 are 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.

When a user observes that a vertical dark line appears between the abutted seams f1 of two adjacent lamp panels 021 in the first direction X, a first touch operation can be performed on a first brightness subtracting sub-control J11-of the second backlight partition a1-2 and the fourth backlight partition a1-4 in the two adjacent lamp panels 021, so that the brightness of the second backlight partition a1-2 and the brightness of the fourth backlight partition a1-4 are reduced, and the purpose of improving the vertical dark line is achieved. For example, suppose that a vertical dark line appears in the seam f1 between the lamp panel 021-2 and the lamp panel 021-1 adjacent to the lamp panel 021-2. 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.

When a user observes that a transverse bright line appears between the abutted seams f1 of two adjacent lamp panels 021 in the second direction Y, namely the lamp panel column direction, a first touch operation can be performed on the first brightness subtraction control J11-of the fourth backlight partition a1-4 in the two adjacent lamp panels 021, so that the brightness of the fourth backlight partition a1-4 is reduced, and the aim of improving the transverse bright line is fulfilled. For example, suppose that a transverse bright line appears in the seam f1 between the lamp panel 021-1 and the lamp panel 021-5 adjacent to the lamp panel 021. Then, the brightness of the fourth backlight partition A1-4 in the lamp panel 021-1 can be reduced, and the brightness of the fourth backlight partition A1-4 in the lamp panel 021-5 can be reduced.

When a user observes that a transverse dark line appears between the abutted seams f1 of two adjacent lamp panels 021 in the second direction Y, a first touch operation can be performed on a first brightness subtraction 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, so that the brightness of the first backlight partition a1-1 is reduced, the brightness of the third backlight partition a1-3 is reduced, and the brightness of the second backlight partition a1-2 is reduced, thereby achieving the purpose of improving the transverse dark line. For example, suppose that a transverse dark line appears in the seam f1 between the lamp panel 021-1 and the lamp panel 021-5 adjacent to the lamp panel 021-1. Then, the brightness of the first backlight partition A1-1, the brightness of the third backlight partition A1-3, and the brightness of the second backlight partition A1-2 in the lamp panel 021-1 can be reduced, and the brightness of the first backlight partition A1-1, the brightness of the third backlight partition A1-3, and the brightness of the second backlight partition A1-2 in the lamp panel 021-5 can be reduced.

The above is to achieve the purpose of improving the display abnormality only by reducing the luminance. In some other embodiments, the display abnormality may also be improved by increasing the brightness, and the principle is the same as above and is not described again. In the item verification of the 65-inch display device, if the brightness at the position of the seam f1 is reduced by about 10Nit (Nit), the brightness parameter 128 is reduced to between 124 and 122 by fine adjustment through the FPGA circuit, and the display effect can be improved. The hexadecimal correspondence between 128 down to 124 and 122 is: 80 is lowered to between 7c and 7 a. In other words, if a dark line appears, the brightness of the non-dark line region is reduced by about 10Nit, and the overall display effect is not affected. After the adjustment is completed, the user can click the picture switching control Color +/Color-, so that the processor 01 controls the display screen 03 to switch and display different Color pictures such as pure white, pure red, pure green, pure blue and the like, if the display effect of each Color picture is enough, the user can further click the Burning control Burning, and the adjusted brightness is burned, cured and stored in the FPGA. Then, the user may end the brightness adjustment.

By combining the above embodiments, in the embodiment of the disclosure, the brightness of each backlight partition a1 of each lamp panel 021 in the backlight 02 is independently adjusted and controlled, so that the brightness at the seam f1 can be improved, and a good display effect is ensured. The method provided by the embodiment of the disclosure can solve the problem that the bright line or the dark line of the LCD panel is displayed abnormally due to the fact that the splicing gap is large caused by the assembly tolerance or the positioning tolerance of the lamp panel; and the problem of color difference abnormity caused by the difference of the driving current can be solved. The LCD panel has the advantages that the uniformity of image display of the LCD panel can be improved, the production yield of the whole LCD panel can be improved, the lamp panel does not need to be disassembled and replaced, and the production efficiency is correspondingly improved. Moreover, the adjusting method provided by the embodiment of the disclosure can be applied to various display devices with different sizes, especially to a display device with a large number of large-size (e.g., 65 inches) lamp panels.

Optionally, the display device described in the embodiment of the present disclosure may be: any product or component with a display function, such as an LCD device, a mobile phone, a tablet computer, a television, a display, a notebook computer, or a navigator.

In summary, embodiments of the present disclosure provide a display device including a processor and a backlight having a plurality of backlight partitions. The processor may display a first brightness adjustment control based on the adjustment start instruction, and may adjust the brightness of the plurality of light-emitting elements included in the target partition among the plurality of backlight partitions according to the received touch operation for the first brightness adjustment control. Therefore, compared with the conventional display device which can only adjust the overall brightness of the backlight, the display device provided by the embodiment of the disclosure has better flexibility in adjusting the brightness of the backlight.

Fig. 14 is a flowchart of a method for adjusting luminance of a backlight in a display device according to an embodiment of the present disclosure, and the method may be applied to the processor 01 described in the foregoing embodiment. As shown in fig. 14, the method includes:

and 1401, responding to the adjusting starting instruction, and displaying a touch control, wherein the touch control comprises a first brightness adjusting control.

Step 1402, determining a first brightness adjustment amount according to the received first touch operation for the first brightness adjustment control.

Step 1403, a target partition to be adjusted in the plurality of backlight partitions is determined.

And 1404, adjusting the brightness of the plurality of light-emitting elements in the target partition according to the first brightness adjustment amount.

In summary, the embodiments of the present disclosure provide a method for adjusting brightness of a backlight source in a display device. In the method, the processor may display a first brightness adjustment control in response to an adjustment start instruction, and may adjust the brightness of the plurality of light emitting elements included in the target partition of the plurality of backlight partitions according to the received touch operation for the first brightness adjustment control. Compared with the method that the overall brightness of the backlight source can be adjusted only at present, the brightness adjusting method provided by the embodiment of the disclosure has better adjusting flexibility.

Optionally, as shown in fig. 1, the display device may further include: the display screen 03 and the processor 01 can also be connected with the display screen 03. On this basis, the step 1401 may include: and responding to the adjustment starting instruction, and displaying the touch control on the display screen.

Alternatively, as shown in fig. 2, the backlight 02 may include a plurality of lamp panels 021 that are spliced, and each lamp panel 021 may have at least two backlight partitions a 1.

Optionally, with reference to fig. 4, a seam f1 may be provided between every two adjacent lamp panels 021, the lamp panels 021 may have a first backlight partition a1-1 and a second backlight partition a1-2, and the first backlight partition a1-1 is adjacent to the seam f1 and is located between the seam f1 and the second backlight partition a 1-2.

Optionally, with reference to fig. 5 and 6, the light panel 021 may further have a third backlight partition a1-3 and a fourth backlight partition a 1-4. The first backlight partition a1-1, the second backlight partition a1-2, and the third backlight partition a1-3 may be sequentially arranged in the first direction X, and the second backlight partition a1-2 and the fourth backlight partition a1-4 may be sequentially arranged in the second direction Y. Wherein the first direction X and the second direction Y may intersect.

And, in the first direction X, in every two adjacent lamp panels 021, the first backlight partition a1-1 of one lamp panel 021 and the third backlight partition a1-3 of the other lamp panel 021 may be adjacent. In the second direction Y, in every two adjacent lamp panels 021, the fourth backlight partition a1-4 of one lamp panel 021 may be adjacent to the fourth backlight partition a1-4 of another lamp panel 021.

Optionally, each backlight partition a1 of the backlight source 02 described in the embodiment of the present disclosure may further have a plurality of sub-partitions, each sub-partition may include at least one light-emitting element L1, and the brightness of the light-emitting elements in the respective sub-partitions may be independently controlled.

Alternatively, as shown in fig. 8, the display device may further include: and a diffusion plate B1 located on the side of the backlight 02 away from the substrate 01, the diffusion plate B1 being used for diffusing the light emitted by the backlight 02. The first distance (i.e., the light mixing distance OD) between the lamp panel 021 and the diffuser plate B1 may be greater than 0 and less than or equal to 6 mm.

On this basis, with reference to fig. 8, the ratio of the second distance d2 between every two adjacent lamp panels 021 to the first distance d1 may be greater than or equal to 1.2 and less than or equal to 8.

The second distance d2 is a distance between the light emitting element L1 on one lamp panel 021 near the seam f1 and the light emitting element L1 on the other lamp panel 021 near the seam f1 in every two adjacent lamp panels 021 having seams. That is, the second distance d2 is the distance between two adjacent lamp panels 021.

Optionally, the light emitting element L1 described in the embodiment of the present disclosure may include: a micro light emitting diode mini LED.

Alternatively, as shown in fig. 9, the first brightness adjustment control J1 may include: a plurality of brightness adjustment sub-controls J11 in one-to-one correspondence with the plurality of backlight partitions a 1. The first touch operation may be a click operation for a target sub-control of the plurality of brightness adjustment sub-controls J1.

Accordingly, determining the first adjustment amount, i.e., step 1402 above, may include: and determining a first brightness adjustment amount according to the received click operation aiming at the target sub-control.

And, determining the target partition, that is, step 1403 may include: and determining a target partition to be adjusted according to the received click operation aiming at the target sub-control. The target partition is a backlight partition corresponding to the target sub-control in the plurality of backlight partitions.

Alternatively, as shown in fig. 9, each of the brightness adjustment sub-controls J11 may include: a first brightness increasing sub-control J11+ and a first brightness decreasing sub-control J11-. On this basis, the step 1402 may include:

and determining a first brightness increment according to the received click operation aiming at the first brightness increment control.

Alternatively, as shown in fig. 9, the display screen 03 may have a plurality of display regions B1 corresponding to the plurality of backlight partitions a1 one to one, and the brightness adjustment sub-control J11 corresponding to each backlight partition a1 may be located in the display region B1 corresponding to the backlight partition a 1.

Fig. 15 is a flowchart of another method for adjusting the brightness of a backlight according to an embodiment of the present disclosure, where the method may be applied to the processor 01 described in the foregoing embodiment. As shown in fig. 15, the method may include:

step 1501, responding to the adjustment starting instruction, and displaying touch control pieces, wherein the touch control pieces comprise a first brightness adjustment control piece, a second brightness adjustment control piece, a brightness resetting control piece, a picture switching control piece, a programming storage control piece and a brightness reading control piece.

Step 1502, a first brightness adjustment amount is determined according to the received first touch operation for the first brightness adjustment control.

And 1503, determining a target partition to be adjusted in the plurality of backlight partitions.

Step 1504, adjusting the brightness of the plurality of light-emitting elements in the target partition according to the first brightness adjustment amount.

Step 1505, determining a second brightness adjustment amount according to the received second touch operation for the second brightness adjustment control.

Optionally, as described in the above embodiment, the second touch operation may be a click operation for the second brightness adjustment control. And, as can be seen with reference to fig. 9, the displayed second brightness adjustment control Num may include: a second brightness increasing sub control Num + and a second brightness decreasing sub control Num-. On this basis, step 1505 may include: and determining a second brightness increment according to the received click operation aiming at the second brightness increment control. And determining a second brightness decrement according to the received click operation aiming at the second brightness decrement control.

And step 1506, adjusting the brightness of the plurality of light-emitting elements in each backlight partition according to the second brightness adjustment quantity.

Step 1507, resetting the luminances of the light emitting elements in each backlight partition to the reference luminance according to the received third touch operation for the luminance resetting control.

And step 1508, controlling the display screen to switch and display the pictures with different colors according to the received fourth touch operation for the picture switching control.

Optionally, as shown in fig. 9, the displayed screen switching control Color may include: a first switching sub-control, Color +, and a second switching sub-control, Color-. On this basis, the step 1508 may include:

and controlling the display screen to switch and display the pictures with different colors according to the first switching sequence according to the received fourth touch operation aiming at the first switching sub-control.

And controlling the display screen to switch and display the pictures with different colors according to a second switching sequence according to the received fourth touch operation aiming at the second switching sub-control.

Wherein the color switching direction of the first switching sequence is opposite to that of the second switching sequence.

Alternatively, as can be seen with reference to fig. 11, the display device may further include: a first drive circuit 03 and a second drive circuit 04. The processor 01 may be further connected to the first driver circuit 03, the first driver circuit 03 may be further connected to the second driver circuit 04, and the second driver circuit 04 may be further connected to the backlight 02. On this basis, as can be seen with continued reference to fig. 15, the method described in the embodiment of the present disclosure may further include:

step 1509, according to the received fifth touch operation for the programming saving control, programming and storing the brightness adjusted according to the first brightness adjustment amount into the first driving circuit.

The brightness stored in the first driving circuit is used for controlling the second driving circuit to transmit driving current to the backlight source by the first driving circuit according to the stored brightness so as to drive the plurality of light-emitting elements in the backlight source to emit light.

In step 1510, the brightness stored in the first driving circuit is displayed according to the received sixth touch operation for the brightness reading control.

It should be noted that the order of the steps of the brightness adjusting method provided by the embodiment of the present disclosure may be appropriately adjusted, and the steps may also be correspondingly increased or decreased according to the situation. For example, step 1505 and step 1506 may be deleted. Any method that can be easily changed by those skilled in the art within the technical scope of the disclosure should be covered by the protection scope of the invention, and thus the detailed description is omitted. Fig. 15 is a schematic illustration only, and the order of the steps is not limited.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the method described above may refer to the corresponding process in the foregoing processor embodiment, and is not described herein again.

Optionally, the embodiment of the present disclosure further provides a computer-readable storage medium, where a computer program may be stored in the computer-readable storage medium. The computer program can be loaded and executed by the processor 01 described in the above embodiments to implement the method for adjusting the brightness of the backlight source shown in fig. 14 or fig. 15.

The terminology used in the description of the embodiments of the present disclosure is for the purpose of describing the embodiments of the present disclosure only and is not intended to be limiting of the present disclosure. Unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs.

As used in the specification and claims of the present disclosure, "first," "second," or "third," and the like, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.

Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items.

"upper", "lower", "left", or "right", etc. are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes.

"and/or" means that three relationships may exist, e.g., A and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

The above description is intended to be exemplary only and not to limit the present disclosure, and any modification, equivalent replacement, or improvement made without departing from the spirit and scope of the present disclosure is to be considered as the same as the present disclosure.

Claims

1. A display device, characterized in that the display device comprises: a processor and a backlight source having a plurality of backlight sections, each of the backlight sections comprising a plurality of light emitting elements;

2. The display device according to claim 1, further comprising: the display screen, the treater still with the display screen is connected, just the treater is used for:

3. The display device of claim 1, wherein the backlight source comprises a plurality of lamp panels that are tiled, each lamp panel having at least two of the backlight sections.

4. The display device according to claim 3, wherein a seam is formed between every two adjacent lamp panels, each lamp panel has a first backlight partition and a second backlight partition, and the first backlight partition is adjacent to the seam and located between the seam and the second backlight partition.

5. The display device of claim 4, wherein the lamp panel further has a third backlight partition and a fourth backlight partition;

wherein the first direction intersects the second direction.

6. The display device according to claim 5, wherein in the first direction, the first backlight subarea of one lamp panel is adjacent to the third backlight subarea of the other lamp panel in every two adjacent lamp panels;

7. The display device according to any one of claims 1 to 6, wherein each of the backlight partitions has a plurality of sub-partitions, each of the sub-partitions including at least one of the light emitting elements;

8. The display device according to claim 7, further comprising: the diffusion plate is positioned on one side of the backlight source, which is far away from the substrate, and is used for diffusing the light rays emitted by the backlight source;

9. The display device according to claim 8, wherein the ratio of the second distance between every two adjacent lamp panels to the first distance is greater than or equal to 1.2 and less than or equal to 8;

10. The display device according to any one of claims 1 to 6, 8, or 9, wherein the light-emitting element comprises: a micro light emitting diode mini LED.

11. The display device of any of claims 1 to 6, 8, or 9, wherein the first brightness adjustment control comprises: a plurality of brightness adjustment sub-controls in one-to-one correspondence with the plurality of backlight partitions; the first touch operation is a click operation aiming at a target sub-control in the plurality of brightness adjustment sub-controls; the processor is configured to:

12. The display device according to claim 11, wherein each of the brightness adjustment sub-controls comprises: a first brightness increasing sub-control and a first brightness decreasing sub-control; the processor is configured to:

13. The display device according to claim 11, wherein the display screen of the display device has a plurality of display areas corresponding to the backlight partitions in a one-to-one manner, and the brightness adjustment sub-control corresponding to each backlight partition is located in the display area corresponding to the backlight partition.

14. The display device according to any one of claims 1 to 6, 8, 9, 12, or 13, wherein the touch control further comprises: a second brightness adjustment control; the processor is further configured to:

15. The display device according to claim 14, wherein the second touch operation is a click operation for the second brightness adjustment control; the second brightness adjustment control comprises: a second brightness increasing sub-control and a second brightness decreasing sub-control; the processor is configured to:

16. The display device of any one of claims 1-6, 8, 9, 12, 13, or 15, wherein the touch control further comprises: displaying a brightness reset control; the processor is further configured to:

17. The display device of any one of claims 1-6, 8, 9, 12, 13, or 15, wherein the touch control further comprises: displaying a picture switching control; the processor is further configured to:

18. The display device according to claim 17, wherein the screen switching control includes: a first switching sub-control and a second switching sub-control; the processor is configured to:

19. The display device of any one of claims 1-6, 8, 9, 12, 13, 15, or 18, wherein the touch control further comprises: programming a storage control; the display device further includes: a first drive circuit and a second drive 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:

20. The display device of claim 19, wherein the touch control further comprises: a brightness reading control; the processor is further configured to:

21. The display device according to claim 19, further comprising: the brightness sensor is positioned on one side of the backlight source and is connected with the first driving circuit;

22. A brightness adjusting method of a backlight source in a display device is characterized in that the backlight source is provided with a plurality of backlight subareas, and each backlight subarea comprises a plurality of light-emitting elements; the method comprises the following steps:

23. A computer-readable storage medium, in which a computer program is stored, the computer program being loaded and executed by a processor to implement the method for adjusting the luminance of a backlight in a display device according to claim 22.