CN113689830B

CN113689830B - Display device, control method thereof and related equipment

Info

Publication number: CN113689830B
Application number: CN202111116742.7A
Authority: CN
Inventors: 耿立华
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2023-09-29
Anticipated expiration: 2041-09-23
Also published as: CN113689830A

Abstract

The disclosure provides a display device, a control method thereof and related equipment, wherein the display device comprises a backlight module, and the method comprises the following steps: determining a first display area of the display device, the first display area corresponding to a non-region of interest for a user; calculating first brightness of a first backlight area of the backlight module corresponding to the first display area according to the display data of the display device; and controlling the first backlight area to light according to a second brightness, wherein the second brightness is smaller than the first brightness.

Description

Display device, control method thereof and related equipment

Technical Field

The disclosure relates to the technical field of display, and in particular relates to a display device, a control method thereof and related equipment.

Background

Monitors and High-end display products typically have a High-Dynamic Range image (HDR) mode, which is characterized by a High color mobility and a High display brightness. More common HDR includes HLG and PQ, among others. The monitor has higher requirements on the display of the HDR, and the brightness of the white picture in the HDR mode is usually up to 1000nits, so that the backlight brightness in the HDR mode is high, the power consumption is higher, and the heat generated by the high-brightness backlight is also high. While high temperatures may have an impact on the display performance of the display device.

Disclosure of Invention

The disclosure provides a display device, a control method thereof and related equipment.

In a first aspect of the present disclosure, a control method of a display device, where the display device includes a backlight module, is provided, and the method includes:

determining a first display area of the display device, the first display area corresponding to a non-region of interest for a user;

calculating first brightness of a first backlight area of the backlight module corresponding to the first display area according to the display data of the display device; and

and controlling the first backlight area to be lightened according to second brightness, wherein the second brightness is smaller than the first brightness.

In a second aspect of the disclosure, a display device is provided, including a display panel, a backlight module, and one or more processors, a memory; and one or more programs, wherein the one or more programs are stored in the memory and executed by the one or more processors, the programs comprising instructions for performing the method of the first aspect.

In a third aspect of the present disclosure, there is provided a non-transitory computer readable storage medium containing a computer program which, when executed by one or more processors, causes the processors to perform the method of the first aspect.

In a fourth aspect of the present disclosure, a computer program product is provided, the computer program product comprising a computer readable storage medium storing instructions that, when executed, cause at least one central processor unit of a computing device to perform the method of the first aspect.

The display device, the control method thereof and the related equipment provided by the disclosure are used for lighting with brightness lower than that originally required by the first backlight area, so that the heating of the part of the display device corresponding to the first display area is reduced, and the power consumption and the backlight heating are reduced.

Drawings

In order to more clearly illustrate the technical solutions of the present disclosure or related art, the drawings required for the embodiments or related art description will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to those of ordinary skill in the art.

Fig. 1A shows a schematic diagram of an exemplary display device 100 provided by an embodiment of the present disclosure.

Fig. 1B shows a schematic diagram of an exemplary backlight module 104 according to an embodiment of the disclosure.

Fig. 2A shows a schematic diagram of one exemplary division for a display area according to an embodiment of the present disclosure.

Fig. 2B shows a schematic diagram of another exemplary division of a display area according to an embodiment of the present disclosure.

Fig. 2C shows a schematic diagram of yet another exemplary partitioning of a display area, according to an embodiment of the present disclosure.

Fig. 2D shows a schematic diagram of an exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 2E shows a schematic diagram of an exemplary backlight module according to an embodiment of the present disclosure.

Fig. 3A shows a schematic diagram of an exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 3B shows a schematic view of another exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 3C shows a schematic view of yet another exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 3D shows a schematic view of another exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 3E shows a schematic view of yet another exemplary display screen of a display panel according to an embodiment of the present disclosure.

Fig. 4 illustrates a block diagram of an exemplary processor according to an embodiment of the present disclosure.

FIG. 5A illustrates a schematic diagram of an exemplary method of calculating marker line size and position in accordance with an embodiment of the present disclosure.

FIG. 5B illustrates a schematic diagram of an exemplary method of calculating an extension line size and position in accordance with an embodiment of the present disclosure.

Fig. 6 shows a flow diagram of an exemplary method provided by an embodiment of the present disclosure.

Detailed Description

For the purposes of promoting an understanding of the principles and advantages of the disclosure, reference will now be made to the embodiments illustrated in the drawings and specific language will be used to describe the same.

It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present disclosure pertains. The terms "first," "second," and the like, as used in embodiments of the present disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

The embodiment of the disclosure provides a display device, which comprises a display panel, a backlight module, one or more processors and a memory; and one or more programs, wherein the one or more programs are stored in the memory and executed by the one or more processors, the programs including instructions for performing a method of controlling the display device. The display device can solve the problems of backlight heating and higher power consumption of the display device to a certain extent.

As shown in fig. 1A, the display device 100 may include a display panel 102, a backlight module 104, and one or more processors 106, a memory 108, an input/output interface 110, a communication interface 112, and a bus 114. Wherein the processor 106, the memory 108, the input/output interface 110 and the communication interface 112 are communicatively coupled to each other within the device via a bus 114.

The processor 106 may be implemented by a general-purpose CPU (Central Processing Unit ), microprocessor, application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, etc. for executing relevant programs to implement the technical solutions provided in the embodiments of the present disclosure.

The Memory 108 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage device, dynamic storage device, or the like. The memory 108 may store an operating system and other application programs, and when the technical solutions provided by the embodiments of the present specification are implemented in software or firmware, relevant program codes are stored in the memory 108 and invoked by the processor 106 for execution.

The input/output interface 110 is used for connecting with an input/output module to realize information input and output. For example, the input/output interface 110 may be electrically coupled to the display panel 102 and the backlight module 104, respectively, so as to output the control instructions generated by the processor 106 to the display panel 102 and the backlight module 104 correspondingly, thereby controlling the display panel 102 to display the display data and controlling the backlight module 104 to be turned on. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include speakers, vibrators, indicator lights, etc.

The communication interface 112 is used to connect a communication module (not shown in the figure) to enable communication interaction of the display apparatus 100 with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).

Bus 114 includes a path for transferring information between components of display device 100, such as processor 106, memory 108, input/output interface 110, and communication interface 112.

It should be noted that, although the display device 100 only shows the display panel 102, the backlight module 104, the processor 106, the memory 108, the input/output interface 110, the communication interface 112, and the bus 114, in the implementation process, the display device 100 may further include other components necessary for implementing normal operation. Further, it will be understood by those skilled in the art that the display device 100 may include only the components necessary for implementing the embodiments of the present disclosure, and not all the components shown in fig. 1A.

As shown in fig. 1B, a plurality of light emitting units 1042 may be arranged on the backlight module 104 in an array, and the light emitting units 1042 may be light emitting devices such as LED, miniLED, microLED. In some embodiments, the light emitting units 1042 may be driven individually, i.e., each light emitting unit 1042 corresponds to an independent driving signal. In other embodiments, the backlight module 104 may be divided into a plurality of partitions, each of which includes a plurality of light emitting units 1042, for example, as shown in fig. 1B, the backlight module 104 is divided into 6 partitions by a dotted line. Each of the partitions may be individually driven, that is, the light emitting units 1042 in the same partition may be lighted with the same driving signal and have the same brightness. Such a partition controlled backlight module may also be referred to as a local dimming (local dimming) backlight module.

The brightness of the light emitting unit 1042 of the backlight module 104 when turned on is related to the gray scale value of the display data at the corresponding position, the driving signal required by the light emitting unit 1042 or the backlight partition can be obtained by calculating according to the display data, and the corresponding light emitting unit 1042 or the backlight partition can be turned on based on the driving signal.

In order to reduce the heat generated by the backlight module 104 and reduce the power consumption of the backlight module 104, the display device 100 may determine the first display area, calculate the first brightness of the first backlight area of the backlight module 104 corresponding to the first display area according to the display data required to be displayed on the display panel 102 of the display device 100, and then control the first backlight area to light up according to the second brightness (for example, the second brightness is 50% of the first brightness) smaller than the first brightness. In this way, the lighting is performed at a brightness lower than that originally required for the first backlight area, and heat generation of the portion of the display device corresponding to the first display area is reduced, thereby reducing power consumption and reducing backlight heat generation. In some embodiments, if the display device 100 is a monitor, the display device 100 may be operated in the HDR mode, so that the power consumption and the backlight heat generation can be reduced better by adopting the method of the present embodiment.

In some embodiments, the display device 100 may further include a second display area, and the display device 100 may calculate, according to the display data of the display panel 102, a third luminance of a second backlight area of the backlight module 104 corresponding to the second display area, and then control the second backlight area to light up according to the third luminance, that is, to light up normally for the second backlight area of the second display area.

In some embodiments, the first display region may be a non-region of interest corresponding to a user and the second display region corresponds to a region of interest of the user, such that the effect on the user experience that the brightness of the first display region is reduced may be weakened. The non-attention area may be an area of the display device 100 that is not currently focused or focused on by the user, for example, an area having a width of a predetermined distance (e.g., 2-10 cm) formed between a dividing line spaced apart from an edge of the display area and the edge.

The non-interest area may be an area defined by the user according to actual needs. For convenience of use by the user and convenience of calculation by the display apparatus 100, in some embodiments, some of the marker lines dividing the region of interest and the region of non-interest may be preset, so that the user may select an appropriate marker line to distinguish the region of interest from the region of non-interest according to actual needs, without manually demarcating the region of interest and the region of non-interest.

Fig. 2A to 2C respectively show schematic diagrams of exemplary divisions for the display region 1022 according to an embodiment of the present disclosure.

As shown in fig. 2A, the display area 1022 is divided into a region of interest 10222 and a region of non-interest 10224 by a rectangular marker line 10226.

As shown in fig. 2B, the display area 1022 is divided into a region of interest 10222 and a region of non-interest 10224 by two parallel marker lines 10226 extending in a first direction (lateral direction in the drawing).

As shown in fig. 2C, the display area 1022 is divided into a region of interest 10222 and a region of non-interest 10224 by two parallel marker lines 10226 extending in the second direction (longitudinal direction in the drawing).

In fig. 2A to 2C, the attention area 10222 includes the center area of the display area 1022, which is generally an important attention area for the user.

It will be appreciated that the three ways of providing the marking lines and dividing the regions of interest 10222 and the regions of non-interest 10224 described above are merely exemplary, and that other ways of dividing and marking may be added depending on the actual needs. Also, in some embodiments, the size of the marker line 10226 of fig. 2A may be adjusted according to actual needs, and the positions of fig. 2B and 2C may also be adjusted according to actual needs.

In some embodiments, if the display device 100 is a monitor, the aforementioned marker line 10226 may be determined using the marker line function in the monitor.

Fig. 2D shows a schematic diagram of an exemplary display 1022 of the display panel 102, according to an embodiment of the present disclosure. As shown in fig. 2D, the display device 100 may display the marking line icons 10228 to 10232 in the display interface 1022 thereof, and the user may issue a marking line display instruction for displaying marking lines of the corresponding specification to the display device 100 by clicking on these icons, and the display device 100 may display the corresponding marking lines according to the instruction. For example, click icon 10228, display the marked line of fig. 2A, click icon 10230, display the marked line of fig. 2B, click icon 10232, and display the marked line of fig. 2C.

After receiving the instruction to display the marker line, the display device 100 may accordingly determine which marker line (e.g., the marker line of fig. 2A) is selected by the user, and further determine a non-attention area (e.g., the area 10224 of fig. 2A) of the user, that is, the aforementioned first display area, based on the size and the position of the marker line.

After determining the first display region, a corresponding first backlight region may be determined based on the first display region. For example, if the width of the marker line can cover 6 pixels, the first backlight region corresponding to the first display region may be a region formed between the outermost edge of the marker line and the edge on the corresponding side of the display region, and when the first backlight region is lit, the LEDs or backlight partitions included in the region may be used for lighting.

In some cases, when the light emitting unit 1042 of the backlight module 104 is an LED (or miniLED, microLED), the emitted light is scattered in all directions, and the brightness is highest in the middle, and is lower as the light emitting unit is far away from the LED. Therefore, the LED has an index of a diffusion radius, and the LED is used as a center, which affects the display brightness of the region within the diffusion radius r, and the portion exceeding the diffusion radius is not affected by the LED.

Accordingly, to reduce the effect of the diffusion radius r, in some embodiments, a more specific method of determining a first backlight region corresponding to a first display region based on the size and location of the marking lines and the light emitting unit diffusion radius r is provided.

Fig. 2E shows a schematic diagram of an exemplary backlight module 104 according to an embodiment of the disclosure.

As shown in fig. 2E, if the first backlight area is defined according to the size and position of the marking line 10226, the light emitting units 1042 outside the marking line 10226 each decrease the brightness, which causes a problem due to the diffusion radius r. In order to secure the display effect of the second display area (the region of interest of the user), the second backlight area of the second display area needs to be expanded outward (i.e., the first backlight area is contracted outward) according to the diffusion radius r. As shown in fig. 2E, taking the rectangular mark line 10226 of fig. 2A as an example, each outer edge of the mark line is spaced from the edge of the display area on the same side by a distance d 1-d 4, after the diffusion radius r is increased, the second display area forms a backlight control demarcation area 1044 corresponding to the second backlight area outward expansion radius r, and correspondingly, the demarcation area 1044 is spaced from the edge of the display area on the same side by a distance d1 '-d 4'. After the demarcation region is defined, the LEDs within or covered (or partially covered) by the demarcation region 1044 are normally lit (corresponding to the second backlight region), and the LEDs in other regions are reduced in brightness (corresponding to the first backlight region). In this way, the brightness of the LEDs other than the boundary region 1044 is reduced, and the display brightness and effect within the boundary region 1044 are not affected.

Similarly, the same processing may be performed on the marking lines shown in fig. 2B and fig. 2C to obtain corresponding demarcation regions, which are not described herein.

In some embodiments, instead of initially reducing the brightness of the first backlight area corresponding to the first display area, the brightness reducing function may be triggered when the temperature of the display device 100 reaches a certain temperature threshold.

For example, as shown in fig. 1A, a temperature sensing unit 1024 or 1046 (e.g., a temperature sensor) may be disposed on the display panel 102 or the backlight module 104 for detecting the current temperature of the display device 100. The display device 100 may determine whether to trigger the brightness reduction function according to the temperature data collected by the temperature sensing unit 1024 or 1046.

For example, if the temperature information is higher than a first temperature threshold (e.g., 50 ℃), the display device 100 may control the first backlight region to be lighted up at the second brightness. For another example, if the temperature information is higher than the second temperature threshold (e.g., 60 ℃), the display device 100 may turn off the light emitting units in the first backlight region. Thus, when the temperature reaches a certain threshold value, the function of reducing the brightness is started, and if the temperature is still further increased, the light emitting units in the first backlight area can be completely turned off, so that the power consumption is reduced to the greatest extent and the backlight heat generation is reduced.

In some embodiments, when the temperature information is higher than the first temperature threshold, as shown in fig. 2D, the display apparatus 100 outputs and displays the marker line prompt information 10234 and the marker line markers 10228 to 10232 to prompt the user to reduce the brightness of the non-attention area by turning on the marker line, thereby reducing the heat generation of the device.

After the operation of reducing or turning off the brightness of the light emitting unit 1042 of the first backlight area of the backlight module 104, the brightness of the first display area (non-attention area) is reduced or no picture is displayed, and thus, when the user wants to carefully watch the non-attention area, it is necessary to timely resume the picture display.

Accordingly, in some embodiments, the display apparatus 100 may further determine whether the attention point of the user is in the first display area, and if the attention point of the user is in the first display area 10224, the display apparatus 100 may control the first backlight area to be lighted up at the first brightness (i.e., to resume the normal lighting).

In some embodiments, the first display region 10224 may include a plurality of sub-display regions (e.g., sub-display region 10224a of fig. 3B, sub-display region 10224B of fig. 3D, sub-display region 10224c of fig. 3D, sub-display region 10224D of fig. 3E), and the first backlight region includes a plurality of sub-backlight regions in one-to-one correspondence with the sub-display regions. The display device 100 may further determine whether the attention point of the user is in a target sub-display area (for example, the sub-display area 10224 a) of the plurality of sub-display areas of the first display area, and if the attention point of the user is in the target sub-display area, the display device 100 may control the target sub-backlight area corresponding to the target sub-display area to be lighted up at the first brightness, and the other areas except the sub-display area 10224a in the first display area 10224 still maintain the original second brightness, as shown in fig. 3B. Similarly, for the other sub-display areas 10224b, 10224C, 10224D, similar processing methods may be used to obtain the display effects shown in fig. 3C, 3D, and 3E, which are not described herein. It will be appreciated that the examples provided by the present embodiment are illustrative only, and in some cases, there may be other ways of illuminating the first display area than the foregoing. For example, when the focus is located at the upper left portion of the first display area 10224, the sub display area 10224a and the sub display area 10224b may be simultaneously lit at the first brightness. Similarly, the lighting manner when the focus is located at the lower left, upper right, and lower right portions of the first display area 10224 may be obtained, and will not be described herein.

In some embodiments, to exclude some misidentification of a point of interest due to misoperations or the person having left the seat, the display device 100 may further determine whether the point of interest of the user is in the first display area or the target sub-display area for a period of time greater than a period of time threshold (e.g., 1 minute, 5 minutes, 10 minutes, etc.), and if the point of interest of the user is in the first display area or the target sub-display area for a period of time greater than the period of time threshold, may determine that the point of interest of the user is in the first display area or the target sub-display area.

In some embodiments, one implementation of determining a point of interest of a user may be to determine where a cursor graphic displayed in the display device 100 is located (e.g., by way of image recognition). Fig. 3A shows a schematic diagram of an exemplary display 1022 of the display panel 102, according to an embodiment of the present disclosure. As shown in fig. 3A, cursor graphic 10236 is in second display region 10222, illustrating that the user's current point of interest is in second display region 10222. Fig. 3B shows a schematic diagram of another exemplary display 1022 of the display panel 102, according to an embodiment of the present disclosure. As shown in fig. 3B, the cursor graph 10236 is in the upper region 10224a of the first display region 10224, illustrating that the user's current focus is in the first display region 10224.

In some embodiments, in addition to determining whether the duration of the cursor graphic in the first display region or the target sub-display region exceeds the duration threshold, in order to ensure that the user is actually focusing on the region (rather than leaving the seat after the cursor is hovered in the first display region or the target sub-display region), after determining that the cursor graphic is present in the first display region or the target sub-display region, it may be desirable to determine whether the cursor graphic is moving in the first display region or the target sub-display region, and if it is determined that the cursor graphic is actually moving in the first display region or the target sub-display region, it may be determined that the focus of the user is in the first display region or the target sub-display region.

In other embodiments, another implementation of determining the point of interest of the user may be to use a face image of the user through a camera (not shown) provided on the display device 100, and then determine the point of interest of the user according to the face image and thus determine whether the point of interest is in the first display area or the target sub-display area. Specifically, for example, the point of interest (viewpoint 10238) of the user may be determined by recognizing an eyeball image in a face image of the user, and then by comparing eyeball patterns in an original face image (e.g., a face image of a front view screen) to obtain a relative movement position of a reference object (e.g., a pupil) in the eyeball.

Fig. 4 shows a block diagram of an exemplary processor 106 according to an embodiment of the present disclosure.

As shown in fig. 4, the processor 106 may further include a plurality of functional modules for processing different data to implement different refinement functions, respectively. For example, the processor 106 may further include an image input module 1062, a front end processing module 1064, a marking module 1066, an image output module 1068, a marking line size calculation module 1070, an extended line size calculation module 1072, an on/off decision module 1074, a backlight control module 1076, a timing module 1078, a mouse position and activity detection module 1080, a viewpoint presence and positioning module 1082.

The image input module 1062 is configured to receive input image data (display data). The front-end processing module 1064 is configured to perform preliminary processing on the image data.

The marking module 1066 is used to add mark lines on the input image, for example, to draw mark lines on the input image according to the type and size of the mark lines defined by the user. The image output module 1068 is configured to output an image or an image with a mark line added to the display panel 102 for display.

The marking line size calculation module 1070 is configured to calculate a specific size of the marking line, and calculate a lateral and a longitudinal size of the marking line in millimeters. The calculation method is shown in fig. 5A. Brackets (x, y) are marked with counts of pixels, indicating that the sub-pixel is the x from the left, the y-th pixel from the vertical, and (0, 0) indicates the pixel at the leftmost corner of the display area, and the width of the marking line may occupy a plurality of pixels. As shown in the large circle in fig. 5A, the left end mark line takes the leftmost pixel as the reference pixel, for example, (x-1, y-l), and the distance h1= (x-l) ×lp from the left end mark line to the leftmost side of the display area is the pixel distance of the display panel. In the same way, if the upper marker line takes the uppermost pixel as the reference pixel (x-t, y-t), the distance v1= (y-t) x Lp from the upper marker line to the uppermost side of the display area. Similarly, the right-side mark line takes the rightmost pixel as the reference pixel, and the distance from the rightmost mark line to the leftmost side of the display area is h2= (x-r) ×lp. Similarly, the lower marker line takes the pixel at the lowest side as a reference pixel, and the distance from the lower marker line to the uppermost side of the display area is v2= (y-b) ×lp. After H1, H2, V1 and V2 are determined, the position and size of the marker frame is determined.

The expanded line size calculation module 1072 is used to calculate the size of the expanded marker line, as shown in fig. 5B. The width of the extension line (demarcation region 1044 of fig. 2E) is 1 pixel wide, the distance from the left side of the extension line to the leftmost side of the display region is h1' = ((x-l) Lp) -Ls, ls being the diffusion radius of the LED; the distance from the right side of the extension line to the leftmost side of the display area is H2' = ((x-r) ×lp) +ls; the distance from the upper side of the extension line to the uppermost side of the display area is v1= ((y-t) Lp) -Ls; the distance v2= ((y-b) Lp) +ls from the underside of the extension line to the uppermost side of the display area; after obtaining H1', H2', V1', V2', the position and size of the extension line are determined.

The viewpoint presence/absence positioning module 1082 is configured to detect presence/absence of a human eye focusing on the display area, and detect positional information of the viewpoint on the display area. The viewpoint presence/absence positioning module 1082 can use a viewpoint positioning algorithm to position whether or not the position on the monitor display screen of the eye of the person is within the mark line based on the image captured by the binocular camera provided at the center of the top end of the display device 100.

The on-off decision module 1074 decides which LEDs in the backlight module 104 are on, which brightness is reduced or off according to the extended line size calculation module 1072, the mouse position and activity detection module 1080, and the viewpoint presence/absence and positioning module 1082.

The timing module 1078 is used to count the time period of eye attention.

As can be seen from the above embodiments, the display device 100 provided by the embodiments of the present disclosure turns off or reduces the corresponding backlight brightness for the non-attention area, so as to effectively reduce power consumption and reduce heat generation, and in particular solve the problems of high power consumption and high heat quantity in the HDR mode of the monitor. Meanwhile, in order to ensure normal watching of the non-concerned area, the backlight switch and the brightness of the non-concerned area are controlled in real time by tracking the eyeballs of a user and tracking the position of an operation mouse.

Based on the same inventive concept, the embodiment of the disclosure also provides a control method of the display device. Fig. 6 shows a flow diagram of an exemplary method 200 provided by an embodiment of the present disclosure. The method 200 may be implemented by the display device 100 and may include the following steps.

At step 202, the display device 100 may determine a first display region (e.g., region 10224 of fig. 3A) that corresponds to a region of non-interest of the user.

In some embodiments, determining the first display area of the display device further comprises: receiving a display mark line instruction; determining a size and a position of a marker line (e.g., marker line 10226 of fig. 3A) according to the display marker line instruction; and determining the first display area according to the size and the position of the marking line.

In some embodiments, the method 200 further comprises: according to the size and the position of the marking line, a first backlight area of the backlight module (for example, the backlight module 104 of fig. 1A) corresponding to the first backlight area is determined in combination with an optical diffusion radius (for example, a diffusion radius r of fig. 2E) of the light emitting unit.

In step 204, the display device 100 may calculate, according to the display data of the display device, a first luminance of a first backlight area of the backlight module corresponding to the first display area.

In step 206, the display device 100 may control the first backlight area to be lighted at a second brightness, which is less than the first brightness.

In some embodiments, the method 200 further comprises: receiving temperature information of the backlight module or the display device; controlling the first backlight area to light according to the second brightness, further comprises: and controlling the first backlight area to be lightened according to the second brightness in response to the temperature information being higher than a first temperature threshold value.

In some embodiments, the method 200 further comprises: turning off light emitting units (e.g., gray light emitting unit 1042 in fig. 2E) in a first backlight area of the backlight module in response to the temperature information being above a second temperature threshold; wherein the second temperature threshold is greater than the first temperature threshold.

In some embodiments, the method 200 further comprises: in response to the temperature information being above the first temperature threshold, a display marker line prompt (e.g., information 10234 of fig. 2D) is output.

In some embodiments, the method 200 further comprises: determining whether a point of interest of a user (e.g., viewpoint 10238 and cursor graphic 10236 of fig. 3B) is in the first display region; and controlling the first backlight area to light according to the first brightness in response to determining that the attention point of the user is in the first display area.

In some embodiments, the first display region includes a plurality of sub-display regions (e.g., sub-display region 10224a of fig. 3B, sub-display region 10224B of fig. 3D, sub-display region 10224c of fig. 3D, sub-display region 10224D of fig. 3E), and the first backlight region includes a plurality of sub-backlight regions; the method 200 further comprises: determining whether a point of interest of a user is in a target sub-display area of a plurality of sub-display areas of the first display area; and in response to determining that the focus of the user is in the target sub-display area, controlling a target sub-backlight area corresponding to the target sub-display area to be lightened according to the first brightness.

In some embodiments, determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises: determining whether the duration of the focus of the user in the target sub-display area is greater than a duration threshold; and in response to determining that the length of time that the point of interest of the user is in the target sub-display area is greater than a length threshold, determining that the point of interest of the user is in the target sub-display area.

In some embodiments, determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises: determining whether a cursor graph of a mouse exists in the target sub-display area; responsive to determining that the cursor graphic is present in the target sub-display area, determining whether the cursor graphic is moving in the target sub-display area; and in response to determining that the cursor graphic is moving in the target sub-display area, determining that a point of interest of a user is in the target sub-display area.

In some embodiments, determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises: receiving a face image of a user; and determining whether the attention point of the user is in the target sub-display area according to the face image.

In some embodiments, the display device further includes a second display region (e.g., region 10222 of fig. 3A) corresponding to a region of interest of the user; the method 200 further comprises: calculating third brightness of a second backlight area of the backlight module corresponding to the second display area according to the display data of the display device; and controlling the second backlight area to light up according to the third brightness.

It should be noted that the foregoing describes some embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Based on the same inventive concept, corresponding to any of the above-described embodiment methods, the present disclosure also provides a non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the method 200 as described in any of the above-described embodiments.

The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.

The storage medium of the foregoing embodiments stores computer instructions for causing the computer to perform the method 200 as described in any of the foregoing embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.

Based on the same inventive concept, the present disclosure also provides a computer program product, corresponding to any of the embodiment methods 200 described above, comprising a computer program. In some embodiments, the computer program is executable by one or more processors to cause the processors to perform the described method 200. Corresponding to the execution bodies corresponding to the steps in the embodiments of the method 200, the processor executing the corresponding step may belong to the corresponding execution body.

The computer program product of the above embodiment is configured to cause a processor to perform the method 200 of any of the above embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the disclosure, including the claims, is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined under the idea of the present disclosure, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present disclosure as described above, which are not provided in details for the sake of brevity.

Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure the embodiments of the present disclosure. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present disclosure, and this also accounts for the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform on which the embodiments of the present disclosure are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the disclosure, it should be apparent to one skilled in the art that embodiments of the disclosure can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.

While the present disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

The disclosed embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Accordingly, any omissions, modifications, equivalents, improvements, and the like, which are within the spirit and principles of the embodiments of the disclosure, are intended to be included within the scope of the disclosure.

Claims

1. A control method of a display device, the display device including a backlight module, the method comprising:

determining a first display area of the display device based on a preset mark line for dividing a concerned area and a non-concerned area, wherein the first display area corresponds to the non-concerned area of a user; wherein the first display area includes a plurality of sub-display areas;

calculating first brightness of a first backlight area of the backlight module corresponding to the first display area according to the display data of the display device; determining a first backlight area of the backlight module corresponding to the first display area according to the size and the position of the marking line and combining the optical diffusion radius of the light emitting unit, wherein the first backlight area comprises a plurality of sub-backlight areas; and

controlling the first backlight area to be lightened according to second brightness in response to the fact that the temperature information of the backlight module or the display device is higher than a first temperature threshold value, wherein the second brightness is smaller than the first brightness;

wherein the method further comprises:

determining whether a point of interest of a user is in a target sub-display area of a plurality of sub-display areas of the first display area; and

and in response to determining that the focus of the user is in the target sub-display area, controlling a target sub-backlight area corresponding to the target sub-display area to be lightened according to the first brightness so as to restore the picture display of the target sub-display area.

2. The method of claim 1, wherein determining the first display area of the display device based on a predetermined marker line, further comprises:

receiving a display mark line instruction;

determining the size and the position of the preset marking line according to the marking line displaying instruction; and

and determining the first display area according to the size and the position of the marking line.

3. The method of claim 1, further comprising: and receiving temperature information of the backlight module or the display device.

4. A method as in claim 3, further comprising:

turning off the light emitting units in the first backlight area of the backlight module in response to the temperature information being higher than a second temperature threshold;

wherein the second temperature threshold is greater than the first temperature threshold.

5. A method as in claim 3, further comprising:

and outputting and displaying mark line prompt information in response to the temperature information being higher than the first temperature threshold.

6. The method of claim 1, wherein determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises:

determining whether the duration of the focus of the user in the target sub-display area is greater than a duration threshold; the method comprises the steps of,

and in response to determining that the duration of the focus of the user in the target sub-display area is greater than a duration threshold, determining that the focus of the user is in the target sub-display area.

7. The method of claim 6, wherein determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises:

determining whether a cursor graph of a mouse exists in the target sub-display area;

responsive to determining that the cursor graphic is present in the target sub-display area, determining whether the cursor graphic is moving in the target sub-display area; the method comprises the steps of,

responsive to determining that the cursor graphic is moving in the target sub-display area, it is determined that a point of interest of the user is in the target sub-display area.

8. The method of claim 6, wherein determining whether the point of interest of the user is in a target sub-display area of a plurality of sub-display areas of the first display area further comprises:

receiving a face image of a user; and

and determining whether the attention point of the user is in the target sub-display area according to the face image.

9. The method of any of claims 1-8, wherein the display device further comprises a second display area, the second display area corresponding to an area of interest of a user; the method further comprises the steps of:

calculating third brightness of a second backlight area of the backlight module corresponding to the second display area according to the display data of the display device; and

and controlling the second backlight area to lighten according to the third brightness.

10. A display device comprises a display panel, a backlight module, one or more processors and a memory; and one or more programs, wherein the one or more programs are stored in the memory and executed by the one or more processors, the programs comprising instructions for performing the method of any of claims 1-9.

11. A non-transitory computer readable storage medium containing a computer program, which when executed by one or more processors causes the processors to perform the method of any of claims 1-9.

12. A computer program product comprising a computer-readable storage medium storing instructions that, when executed, cause at least one central processor unit of a computing device to perform the method of any one of claims 1-9.