CN114333709A - Backlight compensation method and device of display screen, display screen equipment and storage medium - Google Patents
Backlight compensation method and device of display screen, display screen equipment and storage medium Download PDFInfo
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Abstract
The application relates to a backlight compensation method and device of a display screen, display screen equipment and a storage medium. The method comprises the following steps: detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page; determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information; analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not; if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy; according to the method and the device, the target display page in the display screen is analyzed, the highlighted station caption area is identified, and the backlight area of the station caption is compensated, so that the problem that the backlight area is uneven in brightness due to the fact that the LED lamp beads in the station caption area are worn and aged seriously is solved, and abnormal display risks caused by uneven loss of the backlight area of the display screen are reduced.
Description
Technical Field
The present disclosure relates to the field of display screen technologies, and in particular, to a backlight compensation method and apparatus for a display screen, a display screen device, and a storage medium.
Background
With the continuous development of mobile communication technology, smart display screen devices (such as smart phones, tablet computers, and the like) have become essential products in our lives. Currently, Liquid Crystal Display (LCD) is the mainstream technology of display screens used in intelligent display screen devices. The Mini led (Mini Light Emitting Diode) combines with Local Dimming technology, and can perform regional brightness adjustment to make black and white and colorful, thereby bringing better visual experience, and being an important trend in the development of LCD product display technology in recent years. However, because the energy consumption of different backlight areas are different, for example, the display position of the "station logo" is always in the same state for the backlight, and for the highlighted "station logo", the LED lamp of the backlight area of the station logo is also always in a continuously highlighted state, so that the LED lamp and even the lamp panel in the area are irreversibly aged and lost, and the phenomenon of uneven brightness display in the backlight area occurs.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a backlight compensation method, device, display screen device and storage medium for a display screen, which can solve the problem of uneven brightness display in the backlight area of the display screen.
A backlight compensation method of a display screen comprises the following steps:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
Optionally, the method further includes:
acquiring brightness information of the backlight area, wherein the brightness information comprises a current brightness order;
and responding to a first operation behavior of a user, and adjusting the power supply parameter value of the backlight area by adopting a driving control module so as to adjust the current brightness order to a target brightness order.
Optionally, the method further includes:
acquiring brightness information of the backlight area, wherein the brightness information comprises current dynamic brightness;
and responding to a second operation behavior of the user, and adjusting the current dynamic brightness by adopting a Dither dithering algorithm to adjust the current dynamic brightness to a target dynamic brightness, wherein the Dither dithering algorithm comprises a time Dither dithering algorithm and a space Dither dithering algorithm.
Optionally, the method further includes:
analyzing the backlight area information to obtain the brightness value of the backlight area in a preset time period;
if the brightness value of the backlight area in a preset time period is greater than a preset brightness limit value, judging that the backlight area needs to be compensated;
and if the brightness value of the backlight area in a preset time period is equal to or less than a preset brightness limit value, judging that the backlight area does not need to be compensated.
Optionally, the method further includes:
detecting and identifying a target display page of a display screen by adopting a station caption identification algorithm, and determining a static icon series in the target display page;
identifying each static icon in the static icon series to obtain a target static icon;
and determining the target static icon as a station caption, and acquiring the display position information of the station caption.
Optionally, the method further includes:
responding to a page operation behavior of a user on a display screen, and generating backlight compensation request information, wherein the backlight compensation request information comprises a page identifier;
and determining a target display page based on the page identification.
A backlight compensation apparatus for a display screen, the apparatus comprising:
the detection and identification module is used for detecting and identifying a target display page in a display screen and acquiring the display position information of the station caption in the target display page;
the first determining module is used for determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
the analysis module is used for analyzing the backlight area information and judging whether the backlight area needs to be compensated or not;
and the brightness compensation module is used for performing brightness compensation on the backlight area according to a preset strategy when the backlight area needs to be compensated.
A display screen device comprising a memory and a processor, the memory storing a computer program, the processor implementing the following steps when executing the computer program:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
A computer-readable storage medium, on which a computer program is stored which, when executed by a processor, carries out the steps of:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
The backlight compensation method and device for the display screen, the display screen device and the storage medium detect and identify a target display page in the display screen, and acquire display position information of a station caption in the target display page; determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information; analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not; if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy; according to the method and the device, the target display page in the display screen is analyzed, the highlighted station caption area is identified, and the backlight area of the station caption is compensated, so that the problem that the backlight area is uneven in brightness due to the fact that the LED lamp beads in the station caption area are worn and aged seriously is solved, and abnormal display risks caused by uneven loss of the backlight area of the display screen are reduced.
Drawings
Fig. 1 is an application environment diagram of a backlight compensation method for a display screen in an embodiment of the present application.
Fig. 2 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present disclosure.
Fig. 3 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present disclosure.
Fig. 4 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present disclosure.
FIG. 4-1 is a schematic diagram of a backlight compensation method for a display panel according to an embodiment of the present application.
Fig. 5 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present application.
Fig. 6 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present disclosure.
Fig. 7 is a flowchart illustrating a backlight compensation method of a display panel according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a backlight compensation device of a display panel in an embodiment of the present application.
Fig. 9 is a schematic structural diagram of a backlight compensation device of a display panel in an embodiment of the present application.
Fig. 10 is an internal structural view of a display screen device in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The backlight compensation method of the display screen can be applied to the application environment shown in fig. 1. Wherein, the display screen device 102 communicates with the server 104 through the network; the method is used for solving the problem of uneven brightness display of the backlight area of the display screen. The display screen device 102 may be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, and portable wearable devices, and the server 104 may be implemented by an independent server or a server cluster formed by a plurality of servers.
In an embodiment, as shown in fig. 2, a method for compensating backlight of a display screen is provided, which is described by taking the method as an example applied to the display screen device 102 in fig. 1, and the method for compensating backlight of a display screen specifically includes the following steps:
s10: and detecting and identifying a target display page in the display screen, and acquiring the display position information of the station caption in the target display page.
The target display page is a page which has nonuniform backlight brightness display and needs backlight compensation in the display screen. For example: the target display page is a display page of a certain browser, or a display page of a certain television station, or a display page made by any user. The display screen is for example an LED display screen.
Wherein the station label is a dedicated identification used to represent a television station, a television channel, a radio station, or digitized traditional media. The expression forms include patterns, artistic characters, image-text mixed forms and the like, and the contents include television station names, channel numbers, channel names and the like.
At least one station caption exists in each display page of the display screen, and the station caption of different display pages is often located at different positions. For example: the station logo of the television station in China is usually in the upper left corner, but some channels for rebroadcasting major sports events temporarily place the station logo in the upper right corner during the rebroadcasting events because the station logo is prevented from blocking the scoreboard, and the whole half-point time logo is cancelled. Therefore, the target display page in the display screen needs to be detected and identified, and the display position information of the station caption in the target display page is acquired.
For example, the brightness value of the station caption in the target display page is often higher, i.e., the station caption is a highlight region in the target display page. Therefore, the station caption display image can be detected and identified by adopting the station caption identification algorithm, and the display position information of the station caption can be acquired by analyzing the frame buffer image of the target display image. It should be noted that, the process of detecting and identifying the target display page in the display screen and acquiring the display position information of the station caption in the target display page may be, but is not limited to, executed in an SoC IC or a T-CON IC of the display screen. Wherein, TCON refers to Timing controller, and after the mainboard in the display device receives the information, the information will be sent to TCON to process. The TCON further processes the signal, sends the processed signal to a DDI driving chip after the processing is finished, and finally displays the picture on a display screen (such as an LCD or OLED panel). Among them, SoC is called system-on-chip, also called system-on-chip, and is an integrated circuit with a special purpose, which contains the complete system and has the whole content of embedded software. From the perspective of knight-errant, the system is the chip integration of the core of an information system, and key components of the system are integrated on one chip; in a broad sense, SoC is a micro-miniature system, and if the Central Processing Unit (CPU) is the brain, SoC is a system including the brain, heart, eyes, and hands.
S20: and determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information.
The display part of the display screen mainly comprises a backlight source and a liquid crystal display unit, wherein the backlight source mainly adopts a linear light source CCFL and a point light source LED. Therefore, after the display position information of the station caption is determined, the backlight area of the station caption can be determined according to the display position information. The backlight area includes backlight area information of the station caption. The backlight area information can be used for indicating the brightness value of the station caption on the target display page.
S30: and analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not.
After the backlight area information of the station caption is acquired, whether the backlight area needs to be compensated or not can be determined by analyzing the backlight area information. The parsing of the backlight area information may be, but is not limited to, performed in an SoC IC or a T-CON IC of the display screen, and the SoC or the T-CON IC may be, but is not limited to, by parsing the display screen luminance information to confirm whether the back area needs to be compensated.
For example, a station caption brightness limit value can be set in advance according to a Mini-LED backlight scheme or LED lamp bead characteristics, then a station caption brightness value is determined from backlight region information, the station caption brightness value is compared with a preset station caption brightness limit value, and if the station caption brightness value continuously exceeds the station caption brightness limit value within a preset time period, it is determined that the backlight region needs to be compensated; and if the brightness value of the station caption does not exceed the brightness limit value of the station caption in the preset time period, judging that the backlight area does not need to be compensated. The preset time period can be set by user according to actual conditions. For example: 30 seconds, 60 seconds, or 100 seconds.
S40: and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
And if the backlight area of the station caption needs to be compensated according to the judgment of the step 30, performing brightness compensation on the backlight area according to a preset strategy. The preset strategy is a method for performing brightness compensation on the backlight area of the station caption to avoid uneven brightness of the backlight area. In this embodiment, the preset strategy may be to control the brightness of the backlight region by directly reducing the electrical specifications of the backlight region, such as the driving current and the voltage, so as to reduce the consumption of the backlight beads. The backlight area of the station caption can be subjected to dynamic picture processing through space and time Dither, so that the light-emitting time of the lamp beads is reduced, and the aim of effectively reducing the aging loss of the lamp beads is fulfilled.
In this embodiment, a target display page in a display screen is detected and identified, and display position information of a station caption in the target display page is acquired; determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information; analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not; if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy; according to the method and the device, the target display page in the display screen is analyzed, the highlighted station caption area is identified, and the backlight area of the station caption is compensated, so that the problem that the backlight area is uneven in brightness due to the fact that the LED lamp beads in the station caption area are worn and aged seriously is solved, and abnormal display risks caused by uneven loss of the backlight area of the display screen are reduced.
In an embodiment, as shown in fig. 3, performing brightness compensation on the backlight area according to a preset strategy specifically includes the following steps:
s401: and acquiring brightness information of the backlight area, wherein the brightness information comprises a current brightness order.
The brightness information is information for indicating the backlight brightness of the station caption. In one example, the luminance information of the backlight region may be acquired by the SoC \ T-CON IC, and the luminance information includes a current luminance order. For example, the current luminance order is luminance of 255 steps.
S402: and responding to the first operation behavior of the user, and adjusting the power supply parameter value of the backlight area by adopting the driving control module so as to adjust the current brightness order to the target brightness order.
The first operation behavior is a behavior for triggering a drive control module in the display screen to adjust a power supply parameter value of the backlight area. In one example, a plurality of start keys for performing brightness compensation on the backlight area are preset in the display screen, and different start keys correspondingly trigger different modes for performing brightness compensation on the backlight area. When a user executes an operation action in a first starting key of the display screen, the driving control module can be triggered to adjust the power supply parameter value of the backlight area so as to adjust the current brightness order to the target brightness order. The driving control module is preferably an SoC \ T-CON IC or a driving board. The target brightness order is a preset brightness order meeting the requirement, and when the backlight area is the target brightness order, the loss and aging of the LED lamp and the lamp panel in the backlight area can be relieved.
For example, an instruction for storing the target brightness order may be written in the driving control module in advance, and after responding to the first operation behavior of the user, the driving control module may adjust the current brightness order to the target brightness order by adjusting the power supply parameter value of the backlight area. In this embodiment, the driving control module adjusts the power parameter value of the backlight region, which mainly means adjusting the electrical specifications of the backlight region, such as driving current, voltage, and the like, so as to control the brightness order of the backlight region, thereby reducing the consumption of the backlight bead. For example: if the target brightness order is 200 gray scale brightness, the driving control module can adjust the current brightness order of the backlight area from 255 gray scale brightness to 200 gray scale brightness by reducing the electrical specifications of driving current, voltage and the like of the backlight area.
In this embodiment, brightness information of a backlight area is obtained, where the brightness information includes a current brightness order, and a first operation behavior of a user is responded, and a power supply parameter value of the backlight area is adjusted by using a driving control module to adjust the current brightness order to a target brightness order.
In an embodiment, as shown in fig. 4, performing brightness compensation on the backlight area according to a preset strategy specifically includes the following steps:
s403: and acquiring brightness information of the backlight area, wherein the brightness information comprises the current dynamic brightness.
The brightness information is information for indicating the backlight brightness of the station caption. The luminance information includes the current dynamic luminance. And the current dynamic brightness is the brightness of different lamp beads in each frame in the backlight area.
S404: and responding to a second operation behavior of the user, and adjusting the current dynamic brightness by adopting a Dither dithering algorithm to adjust the current dynamic brightness to the target dynamic brightness, wherein the Dither dithering algorithm comprises a time Dither dithering algorithm and a space Dither dithering algorithm.
The second operation behavior is a behavior for triggering the display screen to adjust the current dynamic brightness of the backlight area by adopting a diter dithering algorithm, namely, the dynamic picture processing is carried out on the backlight area by adopting the diter dithering algorithm. In one example, a plurality of start keys for performing brightness compensation on the backlight area are preset in the display screen, and different start keys correspondingly trigger different modes for performing brightness compensation on the backlight area. When a user executes an operation action in a second starting key of the display screen, the display screen can be triggered to adjust the current dynamic brightness of the backlight area by adopting a Dither dithering algorithm so as to adjust the current dynamic brightness to the target dynamic brightness. The gather Dither algorithm includes a temporal gather Dither algorithm and a spatial gather Dither algorithm.
For example, taking the backlight area including 4 beads as an example, referring to fig. 4-1 below, the spatial Dither algorithm may implement that each frame of display uses different beads to emit light. The time diter dithering algorithm can insert a frame of full-dark picture in a 3-frame full-bright picture, and when the refreshing speed of a user on a display picture is fast enough, after the two diter dithering algorithms are adopted for processing, the brightness of a backlight area recognized by human eyes is 75% of the brightness which is not processed by the two diter dithering algorithms originally. And because the light-emitting time of the lamp bead is reduced, the purpose of effectively reducing the aging loss of the lamp bead is achieved.
In this embodiment, the brightness information of the backlight area is obtained, where the brightness information includes current dynamic brightness, and responds to a second operation behavior of a user, and the current dynamic brightness is adjusted by using a diter dithering algorithm to adjust the current dynamic brightness to a target dynamic brightness, where the diter dithering algorithm includes a time diter dithering algorithm and a space diter dithering algorithm, and in this embodiment, dynamic picture processing is performed on the backlight area of the station caption by using the time diter dithering algorithm and the space diter dithering algorithm, so that loss of backlight beads is reduced, and a problem of uneven brightness and darkness of the backlight area of the display screen due to serious aging loss of LED beads in the station caption area is avoided.
In an embodiment, as shown in fig. 5, analyzing the backlight area information to determine whether the backlight area needs to be compensated specifically includes the following steps:
s301: and analyzing the backlight area information to obtain the brightness value of the backlight area in a preset time period.
The preset time period is a time interval which is set in advance according to practical conditions in a self-defined mode. For example: 30 seconds, 60 seconds, or 100 seconds. After the backlight area information of the station caption is acquired, the luminance value of the backlight area in the preset time period can be acquired by analyzing the backlight area information. The parsing of the backlight area information may be, but is not limited to, performed in an SoC IC or a T-CON IC of the display screen.
S302: and if the brightness value of the backlight area in the preset time period is greater than the preset brightness limit value, judging that the backlight area needs to be compensated.
The preset brightness limit value is a preset brightness limit value. Exemplarily, a station caption brightness limit value can be set in advance according to a Mini-LED backlight scheme or LED lamp bead characteristics; and then comparing the acquired brightness value of the station caption in a preset time period with a preset station caption brightness limit value, and if the brightness value of the station caption continuously exceeds the station caption brightness limit value in the preset time period, judging that the backlight area needs to be compensated.
S303: and if the brightness value of the backlight area in the preset time period is equal to or less than the preset brightness limit value, judging that the backlight area does not need to be compensated.
For example, if the brightness value of the station caption is equal to or less than the preset brightness limit within the preset time period, that is, the brightness value of the station caption does not exceed the station caption brightness limit within the preset time period, it is determined that the backlight area needs to be compensated.
In this embodiment, the information of the backlight area is analyzed to obtain the brightness value of the backlight area in the preset time period, and if the brightness value of the backlight area in the preset time period is greater than the preset brightness limit value, it is determined that the backlight area needs to be compensated; if the brightness value of the backlight area in the preset time period is equal to or less than the preset brightness limit value, judging that the backlight area does not need to be compensated; therefore, whether the backlight area of the station caption in the target display page needs to be compensated or not can be judged quickly and effectively, and the data processing efficiency is improved.
In an embodiment, as shown in fig. 6, detecting and identifying a target display page of a display screen to obtain display position information of a station caption in the display screen page specifically includes the following steps:
s101: and detecting and identifying a target display page of the display screen by adopting a station caption identification algorithm, and determining a static icon series in the target display page.
Since the target display page may include a plurality of static icons, in this embodiment, a station caption identification algorithm needs to be adopted to detect and identify the target display page of the display screen, so as to determine a static icon series from the target display page. Specifically, firstly, a station caption identification algorithm is adopted to extract key frames from a target display page, and the extracted key frames are subjected to difference processing, so that a static icon series is determined from the target display page. Preferably, the station caption identification algorithm detects and identifies a target display page of the display screen, and the process of determining the static icon series in the target display page may be, but is not limited to, executed in an SoC IC or a T-CON IC of the display screen.
S102: and identifying each static icon in the static icon series to obtain a target static icon.
S103: and determining the target static icon as a station caption, and acquiring the display position information of the station caption.
After the static icon series are determined from the target display page, each static icon in the static icon series is vertically projected, a character string 0 and a character string 1 which represent the station caption features in each static icon in the static icon series are calculated, and finally, a character string matching algorithm is adopted to realize the rapid identification of the station caption, so that the target static icon is rapidly and accurately identified. Further, after the target static icon is determined, the target static icon is determined as a station caption, and display position information of the station caption is acquired.
In the embodiment, a station caption identification algorithm is adopted to detect and identify a target display page of a display screen, a static icon series in the target display page is determined, each static icon in the static icon series is identified, and a target static icon is obtained; determining the target static icon as a station caption, and acquiring display position information of the station caption; therefore, the effectiveness and the accuracy of the acquired station caption display position information are improved.
In an embodiment, as shown in fig. 7, before detecting and identifying a target display page of a display screen, the backlight compensation method of the display screen specifically includes the following steps:
s11: and responding to the page operation behavior of a user on the display screen, and generating backlight compensation request information, wherein the backlight compensation request information comprises a page identifier.
The page operation behavior is used for triggering the behavior that the display screen detects and identifies the backlight area of the station caption in the page. The page operation behavior can be operations such as touch, click, sliding, frame selection or input on a display screen of a user, and can also be embodied as operations such as mouse click, sliding, frame selection or keyboard input on the display screen of the user.
And generating backlight compensation request information in response to the page operation behavior of a user on the display screen. Preferably, the backlight compensation request information may include a trigger position. The triggering position refers to a specific position where the page operation behavior of the user occurs. Exemplarily, if a control end page is arranged on the display screen, a trigger control and a corresponding page selection item are arranged on the control end page; for example, the triggering control is a backlight compensation starting key, and the page selection items are a plurality of page identifications to be detected and identified. When a user executes a click operation behavior on a 'backlight compensation starting key' trigger control of the control end page and selects any page identifier from a plurality of page identifiers, the display screen responds to the click operation behavior of the user on the control end page to generate backlight compensation request information. The backlight compensation request information is used for requesting to detect and identify the page corresponding to the page identifier so as to judge that the backlight area of the station caption in the page corresponding to the page identifier needs to be compensated. The backlight compensation request information includes a page identification. The page identifier refers to identification information for distinguishing different display pages. Alternatively, the page identifier may be a page ID or a page website, etc.
S12: and determining a target display page based on the page identification.
Since the page identifier of each display page is uniquely determined, after the page identifier is determined, the target display page to be detected and identified next can be determined.
In this embodiment, in response to a page operation behavior of a user on a display screen, generating backlight compensation request information, where the backlight compensation request information includes a page identifier; determining a target display page based on the page identification; therefore, the display page needing to be detected and identified can be selected in a user-defined mode according to actual conditions, and convenience and applicability of page detection and identification are improved.
It should be understood that although the various steps in the flow charts of fig. 2-7 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2-6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternating with other steps or at least some of the sub-steps or stages of other steps.
In one embodiment, as shown in fig. 8, there is provided a backlight compensation apparatus for a display screen, including: the detection and identification module 10, the first determination module 20, the analysis module 30 and the brightness compensation module 40, wherein:
the detection and identification module 10 is configured to detect and identify a target display page in a display screen, and acquire display position information of a station caption in the target display page;
a first determining module 20, configured to determine a backlight area of the station caption according to the display position information, where the backlight area includes backlight area information;
the analysis module 30 is configured to analyze the backlight area information and determine whether the backlight area needs to be compensated;
and the brightness compensation module 40 is configured to perform brightness compensation on the backlight area according to a preset strategy when the backlight area needs to be compensated.
Preferably, as shown in fig. 9, the brightness compensation module 40 includes:
a first obtaining unit 401, configured to obtain luminance information of the backlight area, where the luminance information includes a current luminance order;
a first adjusting unit 402, configured to adjust, by using a driving control module, a power supply parameter value of the backlight area in response to a first operation behavior of a user, so as to adjust the current brightness order to a target brightness order.
Preferably, the brightness compensation module 40 further includes:
the second acquisition unit is used for acquiring the brightness information of the backlight area, and the brightness information comprises the current dynamic brightness;
and the second adjusting unit is used for responding to a second operation behavior of the user and adjusting the current dynamic brightness by adopting a Dither dithering algorithm so as to adjust the current dynamic brightness to a target dynamic brightness, wherein the Dither dithering algorithm comprises a time Dither dithering algorithm and a space Dither dithering algorithm.
Preferably, the parsing module 30 includes:
the solution unit is used for analyzing the backlight area information and acquiring the brightness value of the backlight area in a preset time period;
the first judgment unit is used for judging that the backlight area needs to be compensated when the brightness value of the backlight area in a preset time period is greater than a preset brightness limit value;
and the second judging unit is used for judging that the backlight area does not need to be compensated when the brightness value of the backlight area in a preset time period is equal to or less than a preset brightness limit value.
Preferably, the detection and identification module 10 comprises:
the detection and identification unit is used for detecting and identifying a target display page of the display screen by adopting a station caption identification algorithm and determining a static icon series in the target display page;
the third acquisition unit is used for identifying each static icon in the static icon series to acquire a target static icon;
and the first determining unit is used for determining the target static icon as a station caption and acquiring the display position information of the station caption.
Preferably, the backlight compensation device of the display screen further comprises:
the generating module is used for responding to the page operation behavior of a user on a display screen and generating backlight compensation request information, and the backlight compensation request information comprises a page identifier;
and the second determination module is used for determining a target display page based on the page identification.
For specific limitations of the backlight compensation device for the display screen, reference may be made to the above limitations of the backlight compensation method for the display screen, and details are not repeated here. All or part of each module in the backlight compensation device of the display screen can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent of a processor in the display screen device, and can also be stored in a memory in the display screen device in a software form, so that the processor can call and execute the corresponding operations of the modules.
In one embodiment, a display device is provided, which may be a display device, the internal structure of which may be as shown in fig. 10. The display screen device comprises a processor, a memory, a network interface, a display screen and an input device which are connected through a system bus. Wherein the processor of the display screen device is configured to provide computing and control capabilities. The memory of the display screen device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the display screen device is used for connecting and communicating with an external display screen device through a network. The computer program is executed by a processor to implement a method of backlight compensation for a display screen. The display screen of the display screen device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the display screen device can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the display screen device, an external keyboard, a touch pad or a mouse and the like.
It will be understood by those skilled in the art that the configuration shown in fig. 10 is a block diagram of only a portion of the configuration associated with the present application, and does not constitute a limitation on the display device to which the present application is applied, and a particular display device may include more or less components than those shown in the drawings, or combine certain components, or have a different arrangement of components.
In one embodiment, there is provided a display screen device comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the following steps when executing the computer program:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A backlight compensation method of a display screen is characterized by comprising the following steps:
detecting and identifying a target display page in a display screen to acquire display position information of a station caption in the target display page;
determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
analyzing the backlight area information, and judging whether the backlight area needs to be compensated or not;
and if the backlight area needs to be compensated, performing brightness compensation on the backlight area according to a preset strategy.
2. The backlight compensation method of claim 1, wherein the performing brightness compensation on the backlight area according to a preset strategy comprises:
acquiring brightness information of the backlight area, wherein the brightness information comprises a current brightness order;
and responding to a first operation behavior of a user, and adjusting the power supply parameter value of the backlight area by adopting a driving control module so as to adjust the current brightness order to a target brightness order.
3. The backlight compensation method of claim 1, wherein the performing brightness compensation on the backlight area according to a preset strategy further comprises:
acquiring brightness information of the backlight area, wherein the brightness information comprises current dynamic brightness;
and responding to a second operation behavior of the user, and adjusting the current dynamic brightness by adopting a Dither dithering algorithm to adjust the current dynamic brightness to a target dynamic brightness, wherein the Dither dithering algorithm comprises a time Dither dithering algorithm and a space Dither dithering algorithm.
4. The backlight compensation method of claim 1, wherein analyzing the backlight region information to determine whether the backlight region needs to be compensated comprises:
analyzing the backlight area information to obtain the brightness value of the backlight area in a preset time period;
if the brightness value of the backlight area in a preset time period is greater than a preset brightness limit value, judging that the backlight area needs to be compensated;
and if the brightness value of the backlight area in a preset time period is equal to or less than a preset brightness limit value, judging that the backlight area does not need to be compensated.
5. The backlight compensation method of claim 1, wherein detecting and identifying a target display page of a display screen to obtain display position information of a logo in the display screen page comprises:
detecting and identifying a target display page of a display screen by adopting a station caption identification algorithm, and determining a static icon series in the target display page;
identifying each static icon in the static icon series to obtain a target static icon;
and determining the target static icon as a station caption, and acquiring the display position information of the station caption.
6. The backlight compensation method of claim 1, wherein before the detecting and identifying the target display page of the display screen, the backlight compensation method of the display screen further comprises:
responding to a page operation behavior of a user on a display screen, and generating backlight compensation request information, wherein the backlight compensation request information comprises a page identifier;
and determining a target display page based on the page identification.
7. A backlight compensation device for a display screen, the backlight compensation device comprising:
the detection and identification module is used for detecting and identifying a target display page in a display screen and acquiring the display position information of the station caption in the target display page;
the first determining module is used for determining a backlight area of the station caption according to the display position information, wherein the backlight area comprises backlight area information;
the analysis module is used for analyzing the backlight area information and judging whether the backlight area needs to be compensated or not;
and the brightness compensation module is used for performing brightness compensation on the backlight area according to a preset strategy when the backlight area needs to be compensated.
8. The backlight compensation device of claim 7, wherein the brightness compensation module comprises:
the first obtaining unit is used for obtaining the brightness information of the backlight area, and the brightness information comprises a current brightness order;
and the first adjusting unit is used for responding to a first operation behavior of a user and adjusting the power supply parameter value of the backlight area by adopting the driving control module so as to adjust the current brightness order to a target brightness order.
9. A display screen device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 6 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
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