Method and device for controlling halo of mini-LED display device

Abstract

The present application is applicable to the technical field of display devices, and provides a method and device for controlling the halo of a mini-LED display device. The display screen of the mini-LED display device includes multiple backlight areas. The method includes: obtaining a target halo value of the mini-LED display device; determining a current gain value corresponding to the target halo value; determining target luminous currents corresponding to multiple backlight areas according to the current gain value; and adjusting the halo values ​​of multiple backlight areas using the target luminous currents corresponding to multiple backlight areas. The present application can provide users with a way to control the halo of a mini-LED display device, so that users can adjust the halo of the mini-LED display device to the best visual effect acceptable to users, thereby improving the user experience of the mini-LED display device.

Description

Technical Field

[0001] The present application belongs to the technical field of display devices, and in particular, to a halo control method and device for a mini-LED display device. Background Art

[0002] Mini-LED display devices set the single LED backlight source of traditional LED display devices into several backlight areas, that is, the backlight source of mini-LED display devices includes multiple backlight areas, and different backlight areas are used to provide backlight for different display areas of mini-LED display devices, thereby improving the display contrast of the display device, thereby achieving a display effect far exceeding that of traditional liquid crystal displays (LCD). However, due to the characteristics of mini-LED display devices that emit light in multiple backlight areas, when the backlight source of a backlight area of ​​a mini-LED display device emits light, the adjacent backlight areas where the backlight source is not emitting light can see the light seeping from the backlight area where the backlight source is emitting light. This phenomenon is called halo. The halo of mini-LED display devices affects the user experience. Summary of the invention

[0003] The embodiments of the present application provide a halo control method and device for a mini-LED display device, which can solve the problem that a user cannot adjust the halo of a mini-LED display device, thereby achieving the technical effect of allowing a user to adjust the halo of a mini-LED display device according to his or her preferences.

[0004] In a first aspect, an embodiment of the present application provides a halo control method for a mini-LED display device, wherein the display screen of the mini-LED display device includes multiple backlight areas, and the method includes: obtaining a target halo value of the mini-LED display device; determining a current gain value corresponding to the target halo value; determining a target luminous current corresponding to each of the multiple backlight areas according to the current gain value; and adjusting the halo values ​​of the multiple backlight areas using the target luminous currents corresponding to the multiple backlight areas.

[0005] The embodiment of the present application allows the user to adjust the target halo value, and the mini-LED display device adjusts the halo value of the mini-LED display device according to the target halo value, thereby enabling the user to adjust the halo value of the mini-LED display device according to his or her preferences, effectively improving the user experience of the mini-LED display device.

[0006] In a possible implementation of the first aspect, obtaining a target halo value of a mini-LED display device includes: receiving an operation of a halo adjustment control on the mini-LED display device by a user, where the operation is for the user to input the target halo value. In this implementation, the user adjusts the target halo value by operating the halo adjustment control on the mini-LED display device, so that the user can directly adjust the halo.

[0007] It should be understood that the user's operation of the halo adjustment control on the mini-LED display device can be completed by operating the hardware on the mini-LED display device, or by touch controlling the halo adjustment control on the display screen of the mini-LED display device.

[0008] It should be understood that the halo adjustment control has various forms. For example, the halo adjustment control includes a sliding area and a slider, the slider can slide on the sliding area, and different positions on the sliding area correspond to different target halo values; or the halo adjustment control includes multiple concentric adjustment areas, different adjustment areas correspond to different target halo values, and the multiple concentric adjustment areas are all provided with halo value indicator bars for indicating different target halo values; or the halo adjustment control includes multiple halo value indication areas, the multiple halo value indication areas are arranged in a ring, and different halo value indication areas correspond to different target halo values.

[0009] In another possible implementation of the first aspect, determining the current gain value corresponding to the target halo value includes: determining a first halo value corresponding to the target halo value; and determining the current gain value corresponding to the first halo value. In this implementation, the current gain value can be obtained by determining the first halo value.

[0010] In another possible implementation of the first aspect, determining a first halo value corresponding to the target halo value includes: determining the first halo value corresponding to the target halo value by the following formula: Value = Value set -Value i

[0011] Among them, Value i Indicates the base halo value, Value set Indicates the target halo value, and Value indicates the first halo value. In this implementation, by setting the reference halo value, the user can obtain the first halo value according to the input target halo value. The first halo value can be 0, a positive value, or a negative value. The halo value of the mini-LED display device can be adjusted to increase or decrease through the first halo value, or the halo value of the mini-LED display device can be maintained unchanged.

[0012] In another possible implementation of the first aspect, determining the current gain value corresponding to the first halo value includes: determining the current gain value corresponding to the first halo value by using the following formula: Wherein, Value represents the first halo value, 0xFF represents the hexadecimal value 255, and Gain represents the current gain value. In this implementation, the current gain value is obtained by converting the first halo value, so as to adjust the backlight source light-emitting current of the mini-LED display device according to the current gain value, thereby realizing the control of the halo of the mini-LED display device.

[0013] In another possible implementation of the first aspect, determining the target light emitting currents corresponding to the plurality of backlight areas respectively according to the current gain value includes: determining the target light emitting currents corresponding to the plurality of backlight areas respectively according to the following formula:

[0014] Where Gain represents the current gain value, α represents the influence factor, I 1，origin Represents the original luminous current value of the first backlight area, I 1，out Indicates the target luminous current value of the first backlight area, 0x80 indicates the hexadecimal value 50, and the first backlight area is any one of the multiple backlight areas. In this implementation, by setting the influence factor, different mini-LED display devices can adjust the target luminous current of the mini-LED display device according to different influence factors, and then adjust the halo, thereby achieving the adjustment and control of the halo of the mini-LED display device.

[0015] Specifically, the value of the impact factor α may be 10%, 20% or 30%.

[0016] In another possible implementation of the first aspect, the target light emitting currents corresponding to the multiple backlight areas are used to adjust the halo values ​​of the multiple backlight areas, including: transmitting the target light emitting currents corresponding to the multiple backlight areas to the mini-LED light board of the mini-LED display device through the SPI interface. In this implementation, the target light emitting current is transmitted to the mini-LED display device through the SPI interface, so as to facilitate the control of the halo of the mini-LED display device.

[0017] In a second aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the method in the above-mentioned first aspect or any possible implementation method of the first aspect.

[0018] In a third aspect, an embodiment of the present application provides a halo control device for a mini-LED display device, including a method for executing the above-mentioned first aspect or any possible implementation of the first aspect.

[0019] In a fourth aspect, an embodiment of the present application provides a halo control device for a mini-LED display device, comprising at least one processor and an interface circuit, wherein the at least one processor is used to execute the method in the above-mentioned first aspect or any possible implementation of the first aspect.

[0020] In a fifth aspect, an embodiment of the present application provides a computer program product. When the computer program product runs on a terminal device, the terminal device executes the method in the above-mentioned first aspect or any possible implementation manner of the first aspect.

[0021] It can be understood that the beneficial effects of the second to fifth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0022] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0023] The embodiment of the present application allows the user to adjust the target halo value, and the mini-LED display device adjusts the halo value of the mini-LED display device according to the target halo value, thereby enabling the user to adjust the halo value of the mini-LED display device according to his or her preferences, effectively improving the user experience of the mini-LED display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is an effect diagram of the halo phenomenon of a mini-LED display device;

[0026] Figure 2 It is a schematic diagram of the segmentation of the backlight area of ​​a mini-LED display device;

[0027] Figure 3 It is a flow chart of a halo control method for a mini-LED display device provided in one embodiment of the present application;

[0028] Figure 4 is a schematic diagram of adjusting the target halo value by hardware in an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of adjusting the target halo value by combining software and hardware, provided by an embodiment of the present application;

[0030] Figure 6 is a schematic diagram of adjusting the target halo value by software control in an embodiment of the present application;

[0031] Figure 7 is a schematic diagram of three halo adjustment controls provided in another embodiment of the present application;

[0032] Figure 8 is a structural schematic diagram of a display device using a halo control method for a mini-LED display device provided in an embodiment of the present application;

[0033] Fig. 9 is a schematic diagram of a halo control device for a mini-LED display device provided in an embodiment of the present application;

[0034] Fig.10 is a schematic diagram of a halo control device for a mini-LED display device provided in an embodiment of the present application; DETAILED DESCRIPTION

[0035] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0036] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0037] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0038] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0039] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0040] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0041] When a traditional liquid crystal display (LCD) is working, the backlight source is in a continuous luminous state, resulting in poor display effects. For example, when a traditional LCD displays a black image, the entire backlight source is still in a luminous state, and the displayed black image still has bright light, resulting in poor display effects.

[0042] Mini-LED display technology is a new generation of display technology that has developed rapidly in recent years. The backlight source of mini-LED display devices is divided into multiple backlight areas, and different backlight areas correspond to different display areas. By individually controlling the on and off states of the backlight sources belonging to different backlight areas, it is possible to achieve refined control of the backlight source of the mini-LED display device in different areas, and then achieve refined adjustment of the brightness of the display area corresponding to each backlight area, thereby improving the display effect. For example, when a mini-LED display device displays an image with a black area, by controlling the backlight source of the backlight area corresponding to the black area not to emit light, a full black effect of no light in the black area is achieved, thereby improving the display effect.

[0043] When a mini-LED display device displays an image with high contrast (such as an image with a black background), light from the display area where the backlight emits light tends to penetrate into the display area where the backlight does not emit light, which causes light leakage, resulting in excess light being displayed in the display area where the backlight does not emit light. This is the halo phenomenon. The halo of a mini-LED display device greatly affects the display effect and reduces the user experience. For example, Figure 1 This is an example of a mini-LED display device with a halo effect. Figure 1 As shown, a bright area is displayed in a black background, and a halo is generated around the bright area in the black background.

[0044] At the same time, because of the characteristic of mini-LED display devices that their backlight areas control light emission independently, when the backlight source of a certain backlight area emits light and the backlight source of the adjacent backlight area does not emit light, a brightness difference boundary will appear between the display area where the backlight source emits light and the display area where the backlight source does not emit light due to the change in the backlight source brightness. The backlight area of ​​a mini-LED display device is generally rectangular, so the brightness difference boundary is generally a straight line.

[0045] Figure 2 It is a schematic diagram of the segmentation of the backlight area of ​​the mini-LED display device, such as Figure 2 As shown, it includes a plurality of first backlight areas 211, a second backlight area 212, and a third backlight area 213. When the mini-LED display device is displayed, a first brightness difference boundary 201 is formed between the display areas corresponding to the first backlight area 211 and the second backlight area 212 due to the difference in brightness. Similarly, a second brightness difference boundary 202 is formed between the display areas corresponding to the second backlight area 212 and the third backlight area 213 due to the difference in brightness.

[0046] When the halo of a mini-LED display device is large, the brightness difference boundary between the display area where the backlight emits light and the display area where the backlight does not emit light will be covered by the halo, making the brightness difference boundary between the display area where the backlight emits light and the display area where the backlight does not emit light no longer obvious. On the contrary, when the halo of a mini-LED display device is small, the brightness difference boundary between the display area where the backlight emits light and the display area where the backlight does not emit light will be displayed more clearly.

[0047] People's experience with display devices is often subjective. For example, different users have different perceptions and acceptance of halo. For example, some users may be more accepting of halo, while others may be less accepting of halo. Similarly, different users have different perceptions and acceptance of the brightness difference boundary between the display area where the backlight emits light and the display area where the backlight does not emit light.

[0048] In view of this, the embodiments of the present application provide a halo control method and a display device for a mini-LED display device, whereby a user adjusts the backlight brightness of each backlight area of ​​the mini-LED display device, thereby adjusting the halo amount of the mini-LED display device, so that the user can adjust the halo amount of the mini-LED display device to the user's optimal visual effect according to his or her preferences, and can adjust the brightness difference boundary between the display area where the backlight source emits light and the display area where the backlight source does not emit light to the user's optimal visual effect, thereby improving the user's usage experience.

[0049] In some scenarios, the halo control method of the mini-LED display device of the embodiment of the present application can be applied to various fixed display devices. For example, it can be applied to fixed display devices such as desktop monitors, televisions (TV) or smart home displays.

[0050] In other scenarios, the halo control method of the mini-LED display device of the embodiment of the present application can be applied to various mobile display devices, such as laptops, tablet personal computers (tablet PCs), or car monitors.

[0051] The following is an explanation of the halo control method and apparatus for the mini-LED display device in the embodiment of the present application with reference to specific examples.

[0052] Figure 3 is a flow chart of a method for controlling the halo of a mini-LED display device in an embodiment of the present application. Figure 3 As shown, it includes S301 to S304. S301 to S304 are described in detail below.

[0053] S301. Obtain a target halo value of a mini-LED display device.

[0054] Taking into account that different users have a relatively subjective perception of halo, S301 provides users with a way and interactive method to adjust the halo. That is, by adjusting the halo value through S301, the user can directly adjust the halo value of the mini-LED display device to the target halo value the user wants to adjust, so that the size of the halo amount of the mini-LED display device adapts to the user's subjective usage feeling, thereby improving the user's usage experience.

[0055] It should be understood that the embodiments of the present application do not limit the specific way in which the user adjusts the target halo value, and the user can adjust the target halo value by controlling hardware, software, hardware and hardware, software and software, or a combination of hardware and software.

[0056] In some embodiments, the operation of controlling the target halo value can be implemented by hardware control. The mini-LED display device can receive the user's operation of the halo adjustment control on the mini-LED display device, and the user inputs the target halo value to the mini-LED display device through the operation. For example, a halo adjustment button can be set on the display device, and the user directly adjusts the target halo value by operating the halo adjustment button.

[0057] Figure 4 This is a schematic diagram of adjusting the target halo value through hardware. Figure 4 As shown, a display device 410 and a halo adjustment button 401 are included. An image 411 is displayed on the display device 410 , and the halo of the display image 411 is adjusted by the halo adjustment button 401 .

[0058] Specifically, the halo adjustment button 401 is set on the side of the display device 410, and the halo adjustment button 401 includes a halo increase button 401a and a halo decrease button 401b. The user can press the halo increase button 401a or the halo decrease button 401b, and then use the halo increase button 401a and the halo decrease button 401b to increase or decrease the target halo value of the display device 410.

[0059] Furthermore, the display device 410 has a display interface 411, and the display interface 411 displays a target halo value 412. Figure 4 As shown, the target halo value 412 on the display interface 411 is 80. By displaying the target halo value 412 on the display interface 411 , the user can directly see the adjustment result of the target halo value 412 .

[0060] In other embodiments, the target halo value may be controlled by a combination of hardware and software. For example, an operation button may be provided on the display device, and the user presses the adjustment button to call up a control menu on the display device. The user adjusts the target halo value on the control menu by operating the operation button, thereby adjusting the target halo value.

[0061] Figure 5 This is a schematic diagram of adjusting the target halo value by combining software and hardware. Figure 5 As shown, a display device 510 and an operation button 501 are included. The operation button 501 is disposed on the side of the display device 510. An image 511 is displayed on the display device 510, and a halo is displayed on the display image 511. A user can press the operation button 501 to call up a control menu 512 on the display device 510. The control menu 512 displays a target halo value. The user can continue to operate the operation button 501 to adjust the target halo value to increase or decrease.

[0062] Specifically, the operation button 501 may include a menu button 501a, a halo increase button 501b, and a halo decrease button 501c. The menu button 501a is used to call up a control menu 512 on the display device 510. The halo increase button 501b and the halo decrease button 501c are used to increase and decrease the target halo value on the control menu 512. Among them, the control menu 512 can be integrated into the contrast control and saturation control menus of the display device 510. The halo increase button 501b and the halo decrease button 501c can be the volume increase control key VOL+ and the volume decrease control key VOL- of the display device 510.

[0063] Figure 6 This is a schematic diagram of adjusting the target halo value by software control. Figure 6 As shown, it includes a display device 610, a display image 620, and a halo adjustment control 630. The display device 610 is a mini-LED display device, and the display image 620 is a high-contrast image, which includes a black background and a bright area. The halo adjustment control 630 is used to adjust the halo of the display image 620.

[0064] Specifically, the halo adjustment control 630 can be operated by the mouse cursor. The form of the halo adjustment control 630 can be dragging a slider numerical adjustment control, rotating a pointer numerical adjustment control, or clicking an adjustment numerical control. The value of the halo adjustment control 630 can be adjusted by the mouse cursor.

[0065] Specifically, the value of the halo adjustment control 630 can be adjusted through a display device with a touch function. The form of the halo adjustment control 630 can also be a control with a numerical adjustment function such as a drag slider numerical adjustment control, a rotating pointer numerical adjustment control, or a click adjustment numerical control. The user can adjust the target halo value of the halo adjustment control 630 on the touch screen to adjust the halo degree on the mini-LED display device.

[0066] like Figure 6 As shown, Figure 6 The halo adjustment control 630 is an example of a click-adjustable numerical control. The user can adjust the corresponding control value of the click-adjustable numerical control to the numerical value corresponding to the different lengths by clicking on the positions corresponding to the different lengths on the numerical control, thereby adjusting the halo size.

[0067] Figure 7 are diagrams of three additional examples of halo adjustment controls.

[0068] like Figure 7 As shown in FIG. a, the halo adjustment control includes a sliding area 701a and a slider 701b. The user can drag the slider 701b to move on the sliding area 701a to adjust the target halo value. Figure 7 The target halo value in the middle a figure is specifically 75.

[0069] like Figure 7 As shown in FIG. b, the halo adjustment control includes a plurality of concentric adjustment areas 702a and a halo value indicator bar 702b. Figure 7 The dotted line in the middle b figure indicates that the user can click on different adjustment areas 702a, and different adjustment areas 702a correspond to different target halo values, and then adjust the halo value to the different target halo values ​​corresponding to the different adjustment areas 702a. There are target halo value indicator bars 702b in different adjustment areas 702a, and the target halo value indicator bars 702b of different lengths can intuitively indicate the size of the target halo value. Among them, Figure 7 The target halo value in the middle b image is specifically 75.

[0070] like Figure 7 As shown in Figure c, it includes an adjustment area 703a and a halo value indication area 703b. The adjustment area 703a is circular, and the halo value indication area 703b is a block-shaped indication area. Different halo value indication areas 703b correspond to different target halo values. The user can click the halo value indication areas 703b at different positions to adjust the target halo value to different values. Figure 7The target halo value in the middle c figure is 75. In order to improve the halo adjustment effect, continuous values ​​can be set to adjust the target halo value. For example, the range of the target halo value can be set from 0 to 100 (a total of 101 values).

[0071] The display device may set the target halo value to a default value of 50 when it leaves the factory.

[0072] S302, determining a current gain value corresponding to a target halo value.

[0073] In order to reflect the target halo value set by the user in the actual control of the halo amount and brightness difference boundary of the display device, the target halo value set by the user can be first converted into a halo gain value, and then the brightness of each backlight area is controlled by the halo gain value, so as to achieve the purpose of comprehensive adjustment and control of the halo amount and brightness difference boundary.

[0074] In some embodiments, when the halo value of the display device is controlled, a reference halo value may be set. When the target halo value set by the user is equal to the reference halo value, the halo amount of the display device is neither increased nor decreased. When the target halo value set by the user is greater than the reference halo value, the halo amount of the display device increases, and the brightness difference boundary is less obvious; when the target halo value set by the user is less than the reference halo value, the halo amount of the display device decreases, and the brightness difference boundary is more obvious.

[0075] For example, when the target halo value is between 0 and 100, the reference halo value can be set to 50, and under the reference halo value, the halo amount of the display device neither increases nor decreases. When the target halo value set by the user is greater than the reference halo value of 50 (the target halo value can be specifically 80), the halo amount of the display device increases, and the brightness difference boundary is less obvious; when the target halo value set by the user is less than the reference halo value of 50 (the target halo value can be specifically 30), the halo amount of the display device decreases, and the brightness difference boundary is more obvious.

[0076] In some embodiments, in order to achieve the effect of increasing or decreasing the light emitting current according to the target halo value set by the user, the first halo value corresponding to the target halo value can be first determined, and then the current gain value corresponding to the first halo value can be determined.

[0077] Specifically, the first halo value can be calculated by formula (1):

[0078] Value=Value set -Value i (1)

[0079] In formula (1), Value iIndicates the base halo value, Value set Indicates the target halo value set by the user, and Value indicates the first halo value.

[0080] In order to further obtain the current gain value through the first halo value, the current gain value for halo control can be calculated by formula (2):

[0081]

[0082] In formula (2), Value represents the first halo value, 0xFF represents the hexadecimal value 255, and Gain represents the current gain value for halo control.

[0083] The current gain value for halo control can be obtained by formula (1) and formula (2). For example, when the reference halo value is 50 and the target halo value is 0, the current gain value for halo control is -127.5, at which time the halo amount of the display device decreases, and the brightness difference boundary is more obvious; when the reference halo value is 50 and the target halo value is 100, the current gain value for halo control is 127.5, at which time the halo amount of the display device increases, and the brightness difference boundary is less obvious; when the reference halo value is 50 and the target halo value is 50, the current gain value for halo control is 0, at which time the halo amount of the display device neither increases nor decreases, and the brightness difference boundary does not change.

[0084] S303 , determining target light emitting currents corresponding to the plurality of backlight areas respectively according to the current gain value.

[0085] The brightness and halo of each backlight area can be controlled by controlling the light-emitting current. Specifically, the light-emitting brightness of each backlight area can be controlled by superimposing the current gain value on the light-emitting current of each backlight area.

[0086] Specifically, the light emitting currents corresponding to the multiple backlight areas are adjusted by the current gain value, which can be expressed by formula (3):

[0087]

[0088] In formula (3), α is the influence factor of the current gain value of the halo control on the luminous current of the backlight area, referred to as the influence factor. 0x80 represents the hexadecimal value 50. 1，origin is the original luminous current value of the first backlight area, I 1，out is the actual luminous current value of the first backlight area after adjustment, also referred to as the target luminous current value, wherein the first backlight area is any one of the multiple backlight areas.

[0089] By using formula (3), the target current value of any backlight area can be obtained. For example, the original luminous current value of a backlight area is I 3，origin , then the actual luminous current value of this backlight area after adjustment is I 3，out .

[0090] Specifically, the influence factor α of the current gain value of the halo control on the light emitting current of the backlight area can be set in combination with the actual display effect of the display device and the like.

[0091] For example, the value of the impact factor α may be 10%, 20% or 30%.

[0092] S304, adjusting the halo values ​​of the multiple backlight areas by using the target light emitting currents respectively corresponding to the multiple backlight areas.

[0093] By adjusting the luminous currents corresponding to the multiple backlight areas to the target luminous currents corresponding to the multiple backlight areas, it is possible to adjust the actual luminous currents corresponding to the multiple backlight areas, thereby achieving the purpose of controlling the brightness and halo values ​​of the multiple backlight areas.

[0094] Specifically, when adjusting the luminous brightness of the backlight area of ​​the mini-LED display device, it can be achieved through the serial peripheral interface (SPI interface). The SPI interface can control the brightness of each backlight area of ​​the mini-LED light board, thereby achieving the adjustment of the brightness of multiple backlight areas.

[0095] Through S301 to S304, the luminous current of each backlight area can be controlled. When the backlight source of each backlight area adjusts the luminous current, the brightness of the backlight source of each backlight area changes, thereby changing the brightness of the backlight source of each backlight area. When the brightness of the backlight source of each backlight area changes, the user can adjust the halo amount of the mini-LED display device to the best visual effect accepted by the user according to his or her preferences, and can adjust the brightness difference boundary between the display area where the backlight source emits light and the display area where the backlight source does not emit light to the best visual effect for the user, thereby improving the user experience.

[0096] The embodiment of the present application also provides a display device that can apply the halo control method of the above-mentioned mini-LED display device. Users can apply the halo control method of the above-mentioned mini-LED display device to improve the visual effect of the display device.

[0097] Figure 8 is a structural schematic diagram of a display device using a halo control method for a mini-LED display device in an embodiment of the present application, such as Figure 8 As shown, a display screen 801 and a processor 802 are included, and the display screen 801 and the processor 802 are connected via an SPI interface.

[0098] Specifically, the display screen 801 is used to display images, and the processor 802 can receive a target halo value for adjusting the halo of the mini-LED display device, and determine the current gain value corresponding to the target halo value, and then determine the target light-emitting currents corresponding to multiple backlight areas according to the current gain value. The target light-emitting currents corresponding to multiple backlight areas are controlled by the processor 802 and the SPI interface, thereby controlling the halo of the display screen 801 during display.

[0099] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0100] It should be noted that the information interaction, execution process, etc. between the above-mentioned devices / units are based on the same concept as the method embodiment of the present application. Their specific functions and technical effects can be found in the method embodiment part and will not be repeated here.

[0101] The technicians in the relevant field can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiment can be integrated in a processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application. The specific working process of the units and modules in the above-mentioned system can refer to the corresponding process in the aforementioned method embodiment, which will not be repeated here.

[0102] An embodiment of the present application also provides a halo control device for a mini-LED display device, comprising a unit for executing the above-mentioned method in the embodiment of the present application. Fig. 9 It is a schematic diagram of a halo control device for a mini-LED display device. The device 900 includes a processing unit 910, a storage unit 920 and a transceiver unit 930. The processing unit 910, the storage unit 920 and the transceiver unit 930 can cooperate with each other to execute the above-mentioned method in the embodiment of the present application.

[0103] An embodiment of the present application also provides a halo control device for a mini-LED display device, comprising at least one processor and an interface circuit, wherein at least one of the processors is used to execute the above-mentioned method in the embodiment of the present application. Fig.10 This is a schematic diagram of a halo control device for a mini-LED display device. Fig.10 As shown, it includes a processor 1010 and an interface circuit 1020, and the processor 1010 is used to execute the above-mentioned method in the embodiment of the present application. Among them, the processor 1010 and the interface circuit 1020 can be interconnected through a line. For example, the interface circuit 1020 can be used to receive signals from other devices (such as device 900). For another example, the interface circuit 1020 can be used to send signals to other devices (such as processor 1010). Exemplarily, the interface circuit 1020 can read the instructions stored in the memory and send the instructions to the processor 1010. When the instructions are executed by the processor 1010, the halo control device of the mini-LED display device can perform the various steps of the halo control method of the mini-LED display device in the above-mentioned embodiments. Of course, the halo control device of the mini-LED display device can also include other discrete devices, which is not specifically limited in the embodiment of the present application.

[0104] An embodiment of the present application further provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

[0105] An embodiment of the present application provides a computer program product. When the computer program product runs on a mobile terminal, the mobile terminal can implement the steps in the above-mentioned method embodiments when executing the computer program product.

[0106] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, which can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the camera / terminal device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, RandomAccess Memory), electric carrier signal, telecommunication signal and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk or an optical disk. In some jurisdictions, according to legislation and patent practice, computer-readable media cannot be electric carrier signals and telecommunication signals.

[0107] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0108] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0109] In the embodiments provided in the present application, it should be understood that the disclosed devices / network equipment and methods can be implemented in other ways. For example, the device / network equipment embodiments described above are merely schematic. For example, the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0110] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0111] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A halo control method for a mini-LED display device, wherein the display screen of the mini-LED display device includes a plurality of backlight areas, characterized in that: The method comprises: Obtaining a target halo value of the mini-LED display device; Determining a current gain value corresponding to the target halo value; Determine the target light emitting currents respectively corresponding to the plurality of backlight areas according to the current gain value; Adjusting the halo values ​​of the plurality of backlight areas by using the target light emitting currents respectively corresponding to the plurality of backlight areas; The determining, according to the current gain value, the target light emitting currents respectively corresponding to the plurality of backlight areas comprises: The target light emitting currents corresponding to the multiple backlight areas are determined by the following formula: Wherein, Gain represents the current gain value, α represents the influence factor, I 1，origin Represents the original luminous current value of the first backlight area, I 1，out represents the target light-emitting current value of the first backlight area, 0x80 represents the hexadecimal value 50, and the first backlight area is any one of the multiple backlight areas.

2. The method according to claim 1, characterized in that The obtaining of a target halo value of the mini-LED display device includes: Receive a user's operation on the halo adjustment control on the mini-LED display device, where the operation is used by the user to input the target halo value.

3. The method according to claim 1, characterized in that The determining of the current gain value corresponding to the target halo value comprises: Determining a first halo value corresponding to the target halo value; A current gain value corresponding to the first halo value is determined.

4. The method according to claim 3, characterized in that The determining a first halo value corresponding to the target halo value includes: The first halo value corresponding to the target halo value is determined by the following formula: Value=Value set -Value i Among them, Value i Indicates the base halo value, Value set represents the target halo value, and Value represents the first halo value.

5. The method according to claim 3 or 4, characterized in that The determining of the current gain value corresponding to the first halo value includes: The current gain value corresponding to the first halo value is determined by the following formula: Among them, Value represents the first halo value, 0xFF represents the hexadecimal value 255, and Gain represents the current gain value.

6. The method according to any one of claims 1 to 4, characterized in that The adjusting the halo values ​​of the plurality of backlight areas by using the target light emitting currents respectively corresponding to the plurality of backlight areas comprises: The target light emitting currents corresponding to the multiple backlight areas are transmitted to the mini-LED light board of the mini-LED display device through the SPI interface.

7. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

8. A halo control device for a mini-LED display device, characterized in that: Comprising means for performing the method according to any one of claims 1 to 6.

9. A halo control device for a mini-LED display device, characterized in that: The method comprises at least one processor and an interface circuit, wherein at least one of the processors is configured to execute the method according to any one of claims 1 to 6.

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