CN109272972B - Display device and control method thereof - Google Patents
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- CN109272972B CN109272972B CN201811450612.5A CN201811450612A CN109272972B CN 109272972 B CN109272972 B CN 109272972B CN 201811450612 A CN201811450612 A CN 201811450612A CN 109272972 B CN109272972 B CN 109272972B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
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Abstract
The embodiment of the invention discloses a display device and a control method thereof. The display device of the embodiment of the invention comprises a first processor for processing the content of the video frame, a monitoring device for monitoring the update of the content of the video frame and controlling a second processor group, and the second processor group comprises a plurality of different second processors. If the content of the video frame is monitored to be changed, controlling the second processor group to be in a refreshing working state; and if the video frame content is not changed, controlling the second processor group to be in a non-refreshing working state. The embodiment of the invention controls the second processor to be in different working states by monitoring whether the content of the video frame is changed, thereby effectively reducing the calling times of the second processor and achieving the purpose of reducing the display power consumption.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device and a control method thereof.
Background
In the current display driving chip, due to the dynamic adjustment requirement for the quality, brightness, power supply and the like of the display image, each image processor existing inside the display driver can adjust the quality, brightness and the like of the display image one by one. For example, the Brightness is controlled by a Brightness control Module (BC), and a Dynamic Power Management Module (DPM) manages Power.
The display driving is divided into two parts of image writing and image displaying. In most of the screen display applications, there is a process of displaying a still screen, an Application Processor (Application Processor)，AP) has a low frequency of updating the contents of the video frames in the storage means (i.e. a low image writing frequency). However, in order to prevent the flicker visible to the human eye, the image display needs to be maintained at a high frequency.
The rate at which one image is changed to another image, or updated to another image, on the display panel is referred to as the refresh rate. In order to improve the display quality, a technology of increasing the refresh rate is usually adopted, and the conventional panel refresh rate is 60Hz (i.e. 60fps), which means that the screen is refreshed 60 times per second. In the prior art, the refresh rate is increased from "60 Hz" to "120 Hz (120 fps)", even to "240 Hz (240 fps)". Under the state of high refresh rate, when playing videos, games, pictures and the like for display, the dynamic blurring can be effectively reduced, the display can be smoother, and the visual experience of a user is greatly improved. The current image processors generally process images based on displayed images, which means that even if the driving chip always displays the same image (displays a static picture), the display panel still continuously performs refresh operations, and each image processor is frequently called. In the case of displaying a still picture, the data of each frame of picture is the same, and the data called by the image processor is also the same, and such calling is not practical, but consumes a large amount of power, resulting in unnecessary power loss. The higher the refresh rate, the more severe this unnecessary loss of power consumption.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a display apparatus and a control method thereof, thereby reducing power consumption during display.
According to an aspect of the present invention, there is provided a display device including: a first processor for processing video frame content and generating a refresh signal when said video frame content changes; the monitoring device acquires the refreshing signal from the first processor, controls the second processor group to be in a refreshing working state when receiving the refreshing signal, and controls the second processor group to be in a non-refreshing working state when not receiving the refreshing signal; the second processor group comprises a plurality of different second processors, and the second processors are respectively connected with the monitoring device and are controlled by the monitoring device; and when the second processor group is in a refreshing working state, adjusting the display image.
Preferably, the display device further includes: and the storage device is connected with the first processor and used for storing the video frame content, and the first processor writes the video frame content into the storage device.
Preferably, when the second processor group is in a refresh operating state, all the second processors are in a fully enabled state; when the second processor group is in a non-refreshing working state, different second processors are respectively in a fully enabled state, a partially enabled state or a fully closed state; and when the second processor group is in a refreshing working state, recalculating the key parameters of the displayed image based on each algorithm, and adjusting the image according to a new calculation result.
Preferably, the monitoring device comprises: the monitoring module is used for monitoring and receiving the refreshing signal; the control module is used for controlling the working state of the second processor group; and the control module comprises: the control unit is used for controlling the working state of the second processor group; and the counting unit is used for counting the time or the frame number of the second processor group in the refreshing working state under the condition that the second processor group is in the refreshing working state.
Preferably, the device further comprises at least: the brightness control module is used for controlling the brightness of the image display; the picture quality control module is used for controlling the picture quality of the image display; and the monitoring device monitors the brightness control module and the picture quality control module, and controls the second processor group to be in a refreshing working state when monitoring that the control instruction of any one of the brightness control module and the picture quality control module is changed.
According to another aspect of the present invention, there is provided a control method including: monitoring the content of the video frame, and controlling a second processor group to be in a refreshing working state if the content of the video frame is monitored to be changed; and if the video frame content is not monitored to be changed, controlling the second processor group to be in a non-refreshing working state.
Preferably, the control method further includes: the first processor writing the video frame content to the storage device and generating a refresh signal when the video frame content changes; when the refresh signal is monitored, controlling the second processor group to be in a refresh working state; and when the refreshing signal is not monitored, controlling the second processor group to be in a non-refreshing working state.
Preferably, when the second processor group is in a refresh operation state, the display image is adjusted.
Preferably, a frame number is preset, and after the second processor group is in a refresh working state, the number of frames of the second processor group in the refresh working state is counted; and controlling the second processor group to be in a non-refreshing working state after the frame number of the second processor group in the refreshing working state reaches the frame value.
Preferably, after the second processor group is in the refresh operating state, timing the time when the second processor group is in the refresh operating state; if the time of the second processor group in the refresh working state does not reach the set time and the content of the video frame in the storage device is monitored to be changed, timing is restarted for the time of the second processor group in the refresh working state; and if the time of the second processor group in the refreshing working state reaches the set time and the content of the video frame in the storage device is not changed during the time, controlling the second processor group to be in the non-refreshing working state.
Preferably, the control method further includes: and monitoring a brightness control module and a picture quality control module, and controlling the second processor to be in a refreshing working state if the control instruction of any one of the brightness control module and the picture quality control module is monitored to be changed.
The embodiment of the invention has the following advantages or beneficial effects: the second processor group is controlled to be in different working states by monitoring whether the content of the video frame in the storage device is changed, and when the second processor group is in a non-refreshing working state, the calling times of the second processor are effectively reduced, and the purpose of reducing the display power consumption is achieved.
The embodiment of the invention has the following advantages or beneficial effects: the time that the second processor group is in the refreshing working state is controlled, the second processor group is controlled to be in the non-refreshing working state after being in the refreshing working state every time, and the display power consumption is reduced.
The embodiment of the invention has the following advantages or beneficial effects: the display device is provided with a counting unit which can count the time or the frame number of the second processor group in the refreshing working state and can set the related parameters, so that the second processor group is adjusted to be in the non-refreshing working state after being in the refreshing working state for the specific time or the frame number, the control on the second processor group is enhanced, and the applicability is enhanced by the self-regulation of the setting of the parameters.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 shows a schematic configuration diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic view showing a structure of a display device according to another embodiment of the present invention;
fig. 3 shows a schematic configuration diagram of a display device according to still another embodiment of the present invention;
FIG. 4 illustrates a schematic diagram of a control method according to an embodiment of the invention;
FIG. 5 shows a flow chart of a control method according to an embodiment of the invention;
FIG. 6 shows a flow chart of a control method according to another embodiment of the invention;
fig. 7 shows a flow chart of a control method according to a further embodiment of the invention.
Detailed Description
Various embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Like elements in the various figures are denoted by the same or similar reference numerals. For purposes of clarity, the various features in the drawings are not necessarily drawn to scale. Moreover, certain well-known elements may not be shown in the figures.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. In the following description, numerous specific details of the invention, such as structure, materials, dimensions, processing techniques and techniques of components, are set forth in order to provide a more thorough understanding of the invention. However, as will be understood by those skilled in the art, the present invention may be practiced without these specific details.
It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
Fig. 1 is a schematic structural view illustrating a display device according to an embodiment of the present invention, and as shown in fig. 1, the display device includes: a storage device 11, a first processor 12, a monitoring device 13, a second processor group 14.
In one embodiment of the invention the display means comprises a storage means 11, a first processor 12, a monitoring means 13 and a second processor group 14. The storage means 11 is used for storing video frame content. The first processor 12 is connected to the memory means 11 for writing the content of the video frames to the memory means 11 and for generating a refresh signal when the content of the video frames changes. The monitoring device 13 obtains the refresh signal from the first processor 12, and controls the second processor group 14 to be in the refresh operating state after receiving the refresh signal, and controls the second processor group 14 to be in the non-refresh operating state when not receiving the refresh signal. The second processor group 14 includes a plurality of different second processors for performing different functions, and respectively controlling and adjusting the screen brightness, the chromaticity, and the like of the display image. The second processors are each connected to the monitoring device 13 and are each fully enabled, partially enabled or fully disabled under the control of the monitoring device 13. When the second processor group 14 is in the refresh operation state, the screen brightness, the chromaticity, and the like of the display image are adjusted.
In one embodiment of the present invention, the first Processor 12 is an Application Processor (AP) for updating the content of the video frame in the storage device 11, i.e. writing the image. The second processor group 14 is an image processor group comprising a plurality of different image processors, each performing a different function.
In one embodiment of the invention, the display device comprises a first processor 12, a monitoring device 13 and a second processor group 14. The first processor 12 is used to process the video frame content and generate refresh signals when the video frame content changes. The monitoring device 13 obtains the refresh signal from the first processor 12, and controls the second processor group 14 to be in the refresh operating state after receiving the refresh signal, and controls the second processor group 14 to be in the non-refresh operating state when not receiving the refresh signal.
In one embodiment of the present invention, the operating states of the second processor group (image processor group) 14 include a refresh operating state and a non-refresh operating state. The second processor group (image processor group) 14 includes a plurality of different image processors, each performing a different function. Different image processors at least comprise the following three types, wherein one image processor is in a fully enabled (on state) state under a refreshing working state and a non-refreshing working state; an image processor is in a fully enabled state in a refresh operating state and in a fully closed state in a non-refresh operating state; an image processor includes computation functions for different image characteristic parameters, and is in a fully enabled state in a refresh operation state, and is turned off the computation functions for different image characteristic parameters in the image processor (partially enabled state) in a non-refresh operation state. When the content of the video frame changes and the second processor group 14 is in a refresh working state, all the image processors are in an on state, different image processors re-operate some key parameters of the displayed image based on each algorithm, and adjust the image according to the new operation result. When the content of the video frame is not changed and the second processor group 14 is in a non-refresh operating state, a part of the image processors are in an on state, a part of the image processors are in a completely off state, and a part of the image processors are in a partially enabled state by turning off the computing functions of the image processors for different image characteristic parameters.
Fig. 2 is a schematic structural diagram of a display device according to another embodiment of the present invention, and as shown in fig. 2, the monitoring device 13 includes a monitoring module 131 and a control module 132.
In one embodiment of the present invention, the monitoring device 13 includes a monitoring module 131 and a control module 132. The monitoring module 131 is used for monitoring the first processor (application processor) 12 and receiving a refresh signal. When the monitoring module 131 receives the refresh signal, the control module 132 controls the second processor group (image processor group) 14 to be in a refresh operation state. When the monitoring module 131 does not receive the refresh signal, the second processor group (image processor group) 14 is controlled to be in the non-refresh operation state.
Fig. 3 is a schematic structural diagram of a display device according to another embodiment of the present invention, and as shown in the figure, the control module 132 includes a control unit 1321 and a counting unit 1322.
In one embodiment of the present invention, the control module 132 includes a control unit 1321 and a counting unit 1322. The control unit 1321 is used to control the operating state of the second processor complex 14. After the control unit 1321 controls the second processor complex 14 to be in the refresh operation state, the counting unit 1322 starts counting the time when the second processor complex 14 is in the refresh operation state.
In one embodiment of the present invention, the control unit 1321 controls the second processor complex 14 to be in the non-refresh operating state after the control unit 1321 controls the second processor complex 14 to be in the refresh operating state for a certain time. After the control unit 1321 controls the second processor complex 14 to be in the refresh operation state, the counting unit 1322 starts counting the time that the second processor complex 14 is in the refresh operation state. The counting unit 1322 starts to count up from 0 under the control of the time signal, and when the count value is counted up to the set value (i.e., the second processor group 14 continues to be in the refresh operation state for a specific time), controls the second processor group 14 to be in the non-refresh operation state, and completes the task of controlling the second processor group 14 to be in the refresh operation state for a certain time. The specific time at which the second processor complex 14 refreshes the operating state once may be set in the control module 132.
In one embodiment of the invention, the control unit 1321 controls the second processor complex 14 to be in the non-refresh operating state after the control unit 1321 controls the second processor complex 14 to be in the refresh operating state for a specified number of frames. After the control unit 1321 controls the second processor complex 14 to be in the refresh operation state, the counting unit 1322 starts counting the number of frames of the second processor complex 14 in the refresh operation state. The counting unit 1322 counts up the number of frames from 0, the counting unit 1322 counts up the number of frames each time the second processor group 14 processes one frame, and when the count value is counted up to a set value (i.e., the set second processor group 14 processes a specific number of frames in the refresh operation state), the task of controlling the second processor group 14 to process a certain number of frames in the refresh operation state is completed, and the second processor group 14 is controlled to be in the non-refresh operation state. During the refresh of the operating state of the second processor complex 14 the monitoring means 13 of the display device will still monitor. If the monitoring module 131 receives the refresh signal during the period of the second processor complex 14 refreshing the operating state, the second processor complex 14 is kept in the refresh operating state, the count value in the count unit 1322 is cleared, the count is accumulated from 0 again, and the second processor complex 14 is controlled to be in the non-refresh operating state until the count value is accumulated to the set value.
In an embodiment of the present invention, the display device further includes a brightness control module, a picture quality control module, a power management module, and other management control modules that may cause a change in a display picture. The monitoring device 13 monitors the modules, and controls the second processor group 14 to be in a refresh operating state when monitoring that the control instruction of any one of the modules changes.
Fig. 4 shows a schematic diagram of a control method according to an embodiment of the invention, as shown in fig. 4: the monitoring device monitors the updating or other conditions of the storage device, and controls each second processor to be in a fully enabled state, a partially enabled state or a fully closed state by using a Charge detection signal (chg _ det) according to the monitored result.
In one embodiment of the invention, when the display panel displays an image, the display driving is divided into two parts, namely image writing and image displaying. The first processor is used for updating the content of the video frame in the storage device (namely image writing), and the second processor is an algorithm module for image processing and is used for adjusting the brightness, the chromaticity and the like of the displayed image.
Many modules can also control the display to change, for example, a brightness control module (BC) can control the brightness of the image; a dynamic power management module (DPM) is used to manage power supplies, which in some cases may cause picture changes; the image quality control module is used for adjusting the image quality, and the display picture can be changed when the image quality is adjusted. The monitoring device monitors one or more of the four objects of the storage device, the brightness control module, the dynamic power management module and the image quality control module, and monitors whether the display picture changes. According to the condition monitored by the monitoring device, the charging detection signal (chg _ det) is used for respectively controlling each second processor to be in a fully enabled state, a partially enabled state or a fully closed state. . If any one of the monitoring objects of the monitoring device has the condition that the display picture can be changed, controlling the second processor group to be in a refreshing working state, and controlling each second processor to be in a full enabling state; and if all the monitored objects can not cause the display picture to change, controlling the second processor group to be in a non-refreshing working state, and respectively controlling each second processor to be in a fully enabled state, a partially enabled state or a fully closed state.
Fig. 5 shows a flow chart of a control method according to an embodiment of the invention, comprising the steps of:
in step S501, a storage device is monitored;
in step S502, the operating state of the second processor group is controlled according to the monitoring result.
In one embodiment of the invention, the storage device is monitored, and the operating state of the second processor group is controlled based on the monitoring result. If the video frame content in the storage device is monitored to be changed, controlling the second processor group to be in a refreshing working state; and if the video frame content in the storage device is not monitored to be changed, controlling the second processor group to be in a non-refreshing working state.
In one embodiment of the invention, the video frame content is monitored. If the content of the video frame is monitored to be changed, controlling a second processor group to be in a refreshing working state; and if the video frame content is not monitored to be changed, controlling the second processor group to be in a non-refreshing working state.
Fig. 6 shows a flow chart of a control method according to another embodiment of the invention, comprising the steps of:
in step S601, the first processor writes video frame content to the storage device;
in step S602, when the content of the video frame changes, a refresh signal is generated;
in step S603, it is determined whether the monitoring device receives a refresh signal, and if so, step S604 is performed; if not, returning to the judgment process.
In step S604, the second processor group is in a refresh operation state, and adjusts the display image.
In one embodiment of the present invention, the display driving is divided into two parts, image writing and image displaying. The first processor is an Application Processor (AP) for writing video frame content to the storage device. When the displayed picture does not need to be changed, the application processor does not write the image, and the content of the video frame in the storage device does not change; when the displayed picture needs to be changed, the application processor writes the image and changes the content of the video frame in the storage device. The refresh signal is generated when the content of the video frame changes. The monitoring device monitors the refreshing signal, and when the refreshing signal is monitored, the second processor group (image processor group) is controlled to be in a refreshing working state, and the displayed image is adjusted; if the refresh signal is not monitored, the monitoring continues.
In one embodiment of the invention, the monitoring is dynamic monitoring, i.e. continuously monitoring whether the content of the video frames in the storage means changes. In chronological order, the monitoring device receives a plurality of refresh signals. And dynamically controlling the working state of the second processor group according to the result of the dynamic monitoring.
In one embodiment of the present invention, the luminance control module (BC) is dynamically monitored, the control information in the luminance control module is collected according to a certain frequency, and the newly collected control information is compared with the control information collected last time to determine whether the control information changes. And if the control information is judged to be changed, controlling the second processor group to be in a refreshing working state.
In one embodiment of the present invention, dynamic monitoring of storage devices and other conditions that may cause changes in the display during display is performed simultaneously. Among the situations that may cause a change in the display screen are: brightness adjustment requirements, adjustment requirements for display picture quality, power supply adjustment requirements, and the like. And judging whether each item in the dynamic monitoring objects changes or not, and controlling the second processor group to be in a refreshing working state when any item in the dynamic monitoring objects is judged to change.
Fig. 7 shows a flow chart of a control method according to a further embodiment of the invention, comprising the steps of:
in step S701, the first processor writes video frame content to the storage device;
in step S702, it is determined whether the content of the video frame changes, and if so, step S703 is executed; if not, go to step S704;
in step S704, the second processor group is controlled not to refresh the operating state; after step S704 is performed, step S702 is performed;
in step S703, a refresh signal is generated; after step S703 is performed, step S705 is performed;
in step S705, the second processor group is controlled to be in a refresh operating state according to the refresh signal;
in step S706, under the control of the time signal, 1 is added to the count value i of the counting device;
in step S707, it is determined whether the count value i is greater than or equal to a preset value S, and if so, step S708 is executed; if not, executing step S706;
in step S708, the second processor group is controlled not to refresh the operating state;
in step S709, a count value i of the counting device is cleared; after step S709 is executed, step S702 is executed.
In one embodiment of the invention, the second processor group is an image processor group and the operating states include a refresh operating state and a non-refresh operating state. When the image processor group is in a refreshing working state, all image processors in the image processor group are in full enablement; when the image processor group does not refresh the working state, different image processors in the image processor group are respectively in a fully enabled state, a partially enabled state or a fully closed state. The image processor in the partially enabled state turns off the computation function for different image feature parameters. In the case of no change in the displayed image, the invocation of some image processors is not necessary, in which case such image processors are completely switched off.
In the above embodiment, when the image processor group is in the non-refresh operating state, a part of the image processors are completely turned off, compared with when the image processor group is in the refresh operating state; part of the image processor is partially enabled and partially disabled. When the image processor group is in a non-refreshing working state, the calling of the image processor is reduced, and the power consumption in the display process is reduced.
In one embodiment of the invention, a determination is made continuously whether the content of the video frames has changed. If the content of the video frame is not changed, controlling the second processor group to keep a non-refreshing working state, and returning to the judging process again to wait for the next judgment on whether the content of the video frame is changed; if the content of the video frame is judged to be changed, a refresh signal is generated. According to the refresh signal, the second processor group is controlled to refresh the working state for a certain time (the time is a settable parameter, and can be set to be time with different lengths according to the actual situation, and the time is set to be the size of the preset value S), and then the second processor group is made to be in the non-refresh working state. After controlling the second processor group to be in the refresh operation state, first, 1 is added to the count value i of the counting unit under the control of the time signal (the initial value of the count value is set to 0, i is 0). And judging the count value i, and judging whether the count value i is greater than or equal to a preset value S. If the counting value i is judged to be larger than or equal to the preset value S, the time that the second processor group is in the refreshing working state is considered to reach the set time, and then the working state of the second processor group is changed into the non-refreshing working state; if the counting value i is smaller than the preset value S, the time that the second processor group is in the refreshing working state is not considered to reach the set time, the process returns to the counting value i accumulation process again, and the counting value i of the counting device is added by 1 under the control of the time signal. And when the count value i is greater than or equal to the preset value S, and the time that the second processor group is in the refreshing working state reaches the set time, controlling the second processor group to be in the non-refreshing state, resetting the count value i of the counting device, returning to the judging process of whether the content of the video frame changes again, and waiting for the next judgment of whether the content of the video frame changes.
In an embodiment of the present invention, when the content of the video frame is determined to change, the second processor group is controlled to be in the refresh operation state, and after a certain number of frames are processed, the second processor group is automatically controlled to be in the refresh operation state. And under the condition that the second processor group is in a refreshing working state, monitoring and counting the number of frames processed by the second processor group. When the number of frames processed by the second processor group is less than the set number of frames, the second processor group maintains the refresh operation state. If the video frame content in the storage device is monitored to be changed during the period that the frame number processed by the second processor group is less than the set frame number, the counted processing frame number in the processing period is cleared, and the counting is started from 0 (namely, the refresh operation state of the second processor can be considered to be restarted). And when the frame number processed by the second processor group reaches the set frame number and the updating of the storage device is not monitored in the period, controlling the second processor group to be in a non-refreshing working state.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While embodiments in accordance with the invention have been described above, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A display device, comprising:
a first processor for processing video frame content and generating a refresh signal when said video frame content changes;
the monitoring device acquires the refreshing signal from the first processor, controls the second processor group to be in a refreshing working state when receiving the refreshing signal, and controls the second processor group to be in a non-refreshing working state when not receiving the refreshing signal;
the second processor group comprises a plurality of different second processors, and the second processors are respectively connected with the monitoring device and are controlled by the monitoring device; and
when the second processor group is in a refreshing working state, the display image is adjusted,
when the second processor group is in a refreshing working state, all the second processors are in a full enabling state;
when the second processor group is in a non-refreshing working state, different second processors are respectively in a fully enabled state, a partially enabled state or a fully closed state; and
and when the second processor group is in a refreshing working state, recalculating the key parameters of the displayed image based on each algorithm, and adjusting the image according to a new operation result.
2. The display device according to claim 1, further comprising:
a storage device coupled to the first processor for storing the video frame content, an
The first processor writes the video frame content to the storage device.
3. The display device according to claim 1, wherein the monitoring device comprises:
the monitoring module is used for monitoring and receiving the refreshing signal;
the control module is used for controlling the working state of the second processor group; and
the control module includes:
the control unit is used for controlling the working state of the second processor group;
and the counting unit is used for counting the time or the frame number of the second processor group in the refreshing working state under the condition that the second processor group is in the refreshing working state.
4. A display device according to claim 1, characterized in that the device further comprises at least:
the brightness control module is used for controlling the brightness of the image display;
the picture quality control module is used for controlling the picture quality of the image display; and
the monitoring device monitors the brightness control module and the picture quality control module, and controls the second processor group to be in a refreshing working state when monitoring that the control instruction of any one of the brightness control module and the picture quality control module changes.
5. A control method, comprising:
monitoring the content of the video frames, an
If the content of the video frame is monitored to be changed, controlling a second processor group to be in a refreshing working state; if the content of the video frame is monitored to be unchanged, controlling the second processor group to be in a non-refreshing working state,
when the second processor group is in a refreshing working state, all the second processors are in a full enabling state;
when the second processor group is in a non-refreshing working state, different second processors are respectively in a fully enabled state, a partially enabled state or a fully closed state; and
and when the second processor group is in a refreshing working state, recalculating the key parameters of the displayed image based on each algorithm, and adjusting the image according to a new operation result.
6. The control method according to claim 5, characterized by further comprising:
the first processor writing the video frame content to the storage device and generating a refresh signal when the video frame content changes; and
when the refreshing signal is monitored, controlling the second processor group to be in a refreshing working state; and when the refreshing signal is not monitored, controlling the second processor group to be in a non-refreshing working state.
7. The control method according to claim 5, wherein the second processor group adjusts the display image while in the refresh operation state.
8. The control method according to claim 5, wherein a frame number is preset, and after the second processor group is in a refresh operation state, the number of frames of the second processor group in the refresh operation state is counted; and
and when the frame number of the second processor group in the refreshing working state reaches the frame value, controlling the second processor group to be in a non-refreshing working state.
9. The control method according to claim 5, wherein after the second processor group is in the refresh operation state, timing a time when the second processor group is in the refresh operation state; and
if the time of the second processor group in the refreshing working state does not reach the set time and the content of the video frame in the storage device is monitored to be changed, restarting timing the time of the second processor group in the refreshing working state; and if the time of the second processor group in the refreshing working state reaches the set time and the content of the video frame in the storage device is not changed during the time, controlling the second processor group to be in the non-refreshing working state.
10. The control method according to claim 5, characterized by further comprising:
monitoring the brightness control module and the picture quality control module, an
And if the control instruction of any one of the brightness control module and the picture quality control module is monitored to be changed, controlling the second processor group to be in a refreshing working state.
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