CN112888277B - Control method and control device for heat dissipation of display device and display device - Google Patents
Control method and control device for heat dissipation of display device and display device Download PDFInfo
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- CN112888277B CN112888277B CN202110308582.XA CN202110308582A CN112888277B CN 112888277 B CN112888277 B CN 112888277B CN 202110308582 A CN202110308582 A CN 202110308582A CN 112888277 B CN112888277 B CN 112888277B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components
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- H—ELECTRICITY
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- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The embodiment of the disclosure provides a control method, a control device and a display device for heat dissipation of the display device, wherein the control method comprises the steps of obtaining a standard brightness value of each area in a display assembly of the display device, wherein the display assembly at least comprises one area, and the area is provided with a corresponding heat dissipation device; and determining the output power of the heat dissipation device corresponding to each region based on the standard brightness value. According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Description
Technical Field
The disclosure relates to the field of control of heat dissipation devices, and in particular relates to a control method and device for heat dissipation of a display device and the display device.
Background
The problem of heat dissipation has been an important problem faced by, for example, monitors and other display devices, and poor heat dissipation results in excessive temperatures of the screen, which can affect the properties of the liquid crystal and other optical modules, and further alter the optical characteristics of the screen, such as display brightness and gamma characteristics, which can greatly affect the display effect. In general, for example, a back plate of a monitor is provided with a plurality of fans to cool, but the fans are too many, so that the power of the fans is too high, which not only causes electricity consumption, but also generates great noise to affect the quality of products. In particular, for a highlighting display device using HDR technology, the display brightness of the highlighting display device generally reaches about 1000nit, the temperatures of the back plate and the screen reach about 80 ℃, and poor heat dissipation will seriously affect the characteristics of the display module, and even burn out the display module. However, for a display device such as a large-sized monitor, a brightness of up to 1000nit means that a large power consumption is generated, and a few more fans are added, but for a small-sized monitor, a brightness of up to 1000nit is required, and placing more fans in no place at all in the monitor causes a very heavy product and a loud noise.
Especially for normal playing video, not all pictures can reach the brightness of 1000nit, for example, night scene pictures, most pixels are in a low-brightness state, and the actual brightness can be only about 10-20 nit; or for monitors compatible with SDR and HDR technologies, higher display brightness in the HDR mode is not needed all the time, and if the heat dissipation mode of HDR 1000nit is still adopted at this time, resource waste is necessarily caused.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a control method, a control device, and a display device for heat dissipation of a display device, so as to solve the problem that in the prior art, heat dissipation adjustment cannot be implemented for different display conditions.
In one aspect, an embodiment of the present disclosure provides a method for controlling heat dissipation of a display device, including: obtaining a standard brightness value of each region in a display assembly of the display device, wherein the display assembly at least comprises one region, and the region is provided with a corresponding heat dissipation device; and determining the output power of the heat dissipation device corresponding to each region based on the standard brightness value.
In some embodiments, the obtaining the standard luminance value of each region in the display assembly of the display device includes: acquiring an average pixel value of the region and a gamma characteristic corresponding to the region; a standard luminance value of the region is determined based on the average pixel value and the gamma characteristic.
In some embodiments, the determining a standard luminance value for the region based on the average pixel value and the gamma characteristic comprises: determining an electro-optic conversion formula based on the gamma characteristic; a standard luminance value of the region is determined based on the average pixel value and the electro-optic conversion formula.
In some embodiments, where the display assembly includes a plurality of the regions, the plurality of regions are partitioned in a manner of n×m, where at least one of N, M is a natural number greater than 1.
In some embodiments, in a case where the display assembly includes a plurality of regions and the regions include a central region and a non-central region, wherein the non-central region has the corresponding heat dissipation device, obtaining a standard luminance value for each of the non-central regions in the display assembly of the display device includes: acquiring a first average pixel value of a central area and a second average pixel value of the non-central area; determining a first standard luminance value based on the first average pixel value and a first gamma characteristic corresponding to the central region and a second standard luminance value based on the second average pixel value and a second gamma characteristic corresponding to the non-central region, respectively; a standard luminance value of the non-center region is determined based on the first standard luminance and the second standard luminance.
In some embodiments, the determining the output power of the heat sink corresponding to each of the regions based on the standard luminance values includes: and comparing the standard brightness value with different brightness thresholds, determining a first output power of the heat dissipation device corresponding to the region when the standard brightness value is larger than the brightness threshold, and determining a second output power of the heat dissipation device corresponding to the region when the standard brightness value is smaller than or equal to the brightness threshold, wherein the first output power is larger than the second output power.
In some embodiments, the number of brightness thresholds is determined by the number of gear steps of the heat sink.
In some embodiments, the heat sink is a fan.
The embodiment of the disclosure also provides a control device for heat dissipation of a display device, which comprises the following parts: the display device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a standard brightness value of each area in a display assembly of the display device, the display assembly at least comprises one area, and the area is provided with a corresponding heat dissipation device; and the determining module is used for determining the output power of the heat dissipation device corresponding to each area based on the standard brightness value.
The embodiment of the disclosure also provides a display device, which comprises a back plate, and the control device, wherein the heat dissipation device is arranged on the back plate.
The disclosed embodiments also provide a storage medium storing a computer program which, when executed by a processor, implements the steps of the method described in any of the above technical solutions.
The embodiment of the disclosure also provides an electronic device, at least comprising a memory and a processor, wherein the memory stores a computer program, and the electronic device is characterized in that the processor realizes the steps of the method in any one of the above technical schemes when executing the computer program on the memory.
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings may be obtained according to these drawings without inventive effort to a person of ordinary skill in the art.
FIG. 1 is a schematic diagram illustrating steps of a control method according to an embodiment of the disclosure;
FIG. 2 is a schematic diagram of display interval region division according to an embodiment of the disclosure;
FIG. 3 is a schematic diagram illustrating steps of a control method according to an embodiment of the disclosure;
FIG. 4 is a schematic diagram illustrating steps of a control method according to an embodiment of the disclosure;
FIG. 5 is a schematic diagram illustrating steps of a control method according to an embodiment of the disclosure;
FIG. 6 is a schematic structural diagram of a control device according to an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used in this disclosure should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like, as used in this disclosure, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed description of known functions and known components.
An aspect of the embodiments of the present disclosure provides a control method for heat dissipation of a display device, where the display device may be any type of display device, and the display device may be a monitor with a smaller display size, a display with a larger display size, or the like, and the display device may implement a display function based on predetermined optical characteristics through an internal display component. According to the embodiment of the disclosure, the output power of the heat dissipation device in the display assembly can be adjusted based on the display brightness degree of the display assembly, so that reasonable heat dissipation of the display assembly through the heat dissipation device is achieved. As shown in fig. 1, the control method for heat dissipation of a display device according to the present embodiment may include the following steps:
s101, obtaining a standard brightness value of each area in a display assembly of the display device, wherein the display assembly at least comprises one area, and the area is provided with a corresponding heat dissipation device.
In this step, the standard brightness value of each region in the display component of the display device is first obtained, where the display component may be a display component based on any optical characteristic, for example, may implement a display function through an optical module such as a liquid crystal. Since the display assembly generates heat during display, the display assembly dissipates heat through a heat dissipating device arranged in the display device, and the heat dissipating device can be a fan or other heat dissipating devices.
Further, when the display component displays, different areas of the display component can cause different heating conditions due to different display effects, for example, the area with bright color displayed generates heat, that is, the temperature is higher, and the area with light color displayed generates heat, that is, the temperature is lower. Of course, the whole display assembly can be used as one area, or the display assembly can be divided into a plurality of areas, and each area is correspondingly provided with a heat dissipation device so as to dissipate heat of the area through the heat dissipation device. The standard brightness value of the region is that the display brightness of each region is normalized to show the degree of the display brightness of different regions.
Further, in the case that the display assembly includes a plurality of the regions, the plurality of the regions are divided in a manner of n×m, wherein at least one of N, M is a natural number greater than 1. In one embodiment, for example, as shown in fig. 2, taking a monitor as an example, considering that the display unit of the monitor is generally rectangular, it is possible to divide the display area into 9 areas by 3×3, and arrange 9 heat dissipating devices inside the monitor to correspond to 9 different areas, and of course, in practice, a core board may be arranged in a middle area, where the core board is used for arranging functions such as a circuit structure, etc., no heat dissipating device is arranged in the middle area, that is, a position where the core board is arranged, and one heat dissipating device is arranged in all other 8 areas. Of course, since the display assembly is divided into regions, the resolution of the display assembly is correspondingly divided into 9 regions or the display assembly is divided into 9 regions, for example, for a monitor with a resolution of 4k, the resolution is 3840×2160, after the display assembly is divided into regions according to the manner of 3*3, since 3840/3=1280, 2160/3=720, after the 9 regions are divided, the resolution of each region is 1280×720.
S102, determining the output power of the heat dissipation device corresponding to each area based on the standard brightness value.
After the standard luminance value of each region in the display assembly of the display device is obtained through the above step S101, the output power of the heat sink corresponding to each region may be determined based on the standard luminance value. The heat dissipation requirement of each region is determined based on the standard brightness value of each region, so that the output power of the heat dissipation device corresponding to different regions is respectively adjusted, and the output power is matched with the standard brightness value of the region, namely the heat dissipation requirement. For example, when the heat sink employs a fan that can be adjusted in multiple gear, the different output powers herein correspond to different gear positions of the heat sink, such as a low gear, a medium gear, or a high gear, where the output power corresponds to a low gear, the heat sink has the worst heat dissipation capacity, and where the output power corresponds to a high gear, the heat dissipation capacity of the heat sink is the best.
In actual comparison, different output powers of the heat dissipation device can be corresponding to different brightness thresholds, and the output power of the heat dissipation device is determined through comparison of the standard brightness value and the different brightness thresholds.
To this end, the determining, based on the standard luminance values, the output power of the heat sink corresponding to each of the regions includes: one or more brightness thresholds are preset, the standard brightness value is compared with different brightness thresholds, when the standard brightness value is larger than the brightness thresholds, first output power of the heat dissipating device corresponding to the area is determined, when the standard brightness value is smaller than or equal to the brightness thresholds, second output power of the heat dissipating device corresponding to the area is determined, and here, the larger the standard brightness value is, the larger the heat dissipating requirement corresponding to the area is, therefore, the first output power needs to be larger than the second output power, namely, the higher the output power of the heat dissipating device needs to be for the area with the larger heat dissipating requirement.
For example, when the standard brightness value is below the preset brightness threshold, for example, below 650nit, the heat dissipation device may be controlled to be in a low-power mode, for example, the fan may be controlled to operate in a low-gear mode, and when the standard brightness value is above 650nit, the heat dissipation device may be controlled to be in a high-power mode, for example, the fan may be controlled to operate in a high-gear mode. Thus, after the display assembly is divided into areas, the output power of the heat dissipation device corresponding to the area can be controlled according to the standard brightness values of different areas.
It is contemplated that one or more of the brightness thresholds may be set herein to achieve finer heat dissipation control, the plurality of brightness thresholds corresponding to a plurality of gear steps of the heat dissipation device, such that the number of brightness thresholds is determined by the gear steps of the heat dissipation device. For example, the bulk device, such as a fan, has three gears, low, medium, and high, and two brightness thresholds may be correspondingly set. For example, if the standard brightness value is smaller than the first brightness threshold value M1, controlling the speed regulator of the fan to be 1 st gear; if the standard brightness value is less than the brightness threshold value M2 but greater than or equal to the first brightness threshold value M1, the speed regulator for controlling the fan is the 2 nd gear … … and so on, so that the number of gears and brightness threshold values can be selected according to the number of gears of the selected fan.
In another embodiment, in the process of obtaining the standard luminance value of each region in the display assembly of the display device, as shown in fig. 3, the method may include the steps of:
s201, acquiring an average pixel value of the region and gamma characteristics corresponding to the region.
In order to acquire the standard luminance value of each of the regions, in this step, it is necessary to first acquire the average pixel value of the region and the gamma characteristic corresponding to the region. Here, first, the average pixel value of the area is associated with the standard luminance value of the area, and there is a difference in the average pixel values of different areas, taking the above-mentioned monitor as an example, except that the middle area is the position of the core board where there may be no heat dissipation device, one heat dissipation fan may be placed in all of the remaining 8 areas to dissipate heat from the area having different average pixel values. Correspondingly, according to the different resolutions, the resolution of the screen is also divided into 9 sections, such as a monitor with 4k resolution, after the 9 areas are divided, the resolution of each area is 1280 x 720, and the RGB pixel values of the area with the statistical resolution of 1280 x 720 are taken as the average pixel values of the areas.
In addition, different gamma characteristics of the regions may affect the standard brightness value of the regions, wherein a gamma curve corresponding to the gamma characteristics is a curve characteristic formed after a nonlinear circuit (gamma correction circuit) is processed, and a photoconductive characteristic processed by the gamma correction circuit may exhibit nonlinear characteristics, particularly, a high light portion with a compressed contrast may enhance the photosensitivity. The use of different gamma characteristics in a display will have corresponding EOTF characteristics, referred to herein as electro-optical transfer functions, based on which standard luminance values corresponding to digitally encoded pixel values can be calculated, the following table shows the relationship between the different gamma characteristics and the standard luminance values.
Table gamma characteristic and standard brightness value relation table
S202, determining a standard brightness value of the area based on the average pixel value and the gamma characteristic.
After the average pixel value of the region and the gamma characteristic corresponding to the region are obtained through the above-described step S201, in this step, the standard luminance value of the region is determined based on the average pixel value and the gamma characteristic, specifically, for example, by an EOTF characteristic corresponding to the gamma characteristic, that is, an electro-optical conversion characteristic.
Specifically, the determining the standard luminance value of the region based on the average pixel value and the gamma characteristic, as shown in fig. 4, includes the steps of:
s301, based on the gamma characteristic, determining a corresponding electro-optical conversion characteristic.
This correlation is determined by a photoelectric conversion characteristic or an electro-optical conversion characteristic in consideration of the correlation of the standard luminance value with the average pixel value and the gamma characteristic of the region, wherein the photoelectric conversion characteristic is reciprocal to the electro-optical conversion characteristic, and thus, different ones of the gamma characteristics correspond to different ones of the electro-optical conversion characteristics.
Specifically, on the basis of the photoelectric conversion characteristic determined based on the gamma characteristic, the pixel value of the corresponding electric signal can be obtained by the photoelectric conversion characteristic on the basis of the obtained image luminance, for example, under the standard of the gamma characteristic bt.709, the photoelectric conversion characteristic is as follows:
V＝1.099L0.45-0.099 1≥L≥0.018
V＝4.5L 0.018>L≥0
wherein L is a standard luminance value (0.ltoreq.L.ltoreq.1) of the region, V is an average pixel value of the electric signal, and the inverse process of the photoelectric conversion characteristic is the photoelectric conversion characteristic, namely the EOTF characteristic, so that the corresponding standard luminance value can be obtained through the photoelectric conversion characteristic on the basis of obtaining the average pixel value of the electric signal, and the photoelectric conversion characteristic is represented by the following photoelectric conversion function by taking the standard of the gamma characteristic BT.709 as an example:
L＝((V+0.099)/1.099)1/0.45 1≥V≥0.081
L＝V/4.5 0.081>V≥0
the standard luminance value corresponding to the average pixel value of the region can thus be calculated. The same average pixel value has different standard luminance values for different gamma characteristics, where the standard luminance value will be an important criterion for the output power or gear selection of the heat sink.
S302, determining a standard brightness value of the area based on the average pixel value and the electro-optical conversion characteristic.
On the basis of determining the electro-optical conversion characteristic corresponding to the gamma characteristic by the above-described steps, the standard luminance value of the region may be calculated by substituting the average pixel value obtained for the region into an electro-optical conversion function representing the corresponding electro-optical conversion characteristic.
Therefore, after the standard brightness value of the area is obtained, the standard brightness value is compared with the brightness threshold value, and the output power or the gear corresponding to the heat dissipating device is determined, for example, the speed regulator of the fan can be further controlled by the control circuit to reach the corresponding gear.
Further, in another embodiment, the display section includes a plurality of areas, where there are a central area and a non-central area, where, taking the above mentioned monitor as an example, the corresponding heat dissipating device may be placed in all 8 areas except that the central area is the position of the core board where there may be no place to place the heat dissipating device. For the area where the core board is located, the heat dissipation devices around the core board need to be controlled together to help the middle area to dissipate heat, so that the heat dissipation devices corresponding to the 8 surrounding areas should consider the influence brought by the middle area on the basis of independently calculating the standard brightness value before, for example, if the brightness of the middle area is too high, the output power of all the 8 surrounding heat dissipation devices should be increased.
Therefore, in the case where the display assembly includes a plurality of regions and the regions include a central region and a non-central region, wherein the non-central region has the corresponding heat dissipation device, obtaining a standard luminance value of each of the non-central regions in the display assembly of the display device, as shown in fig. 5, includes the steps of:
s401, acquiring a first average pixel value of a central area and a second average pixel value of the non-central area.
In this step, the first average pixel value of the center region and the second average pixel value of the non-center region are obtained in the above manner, respectively.
S402, determining a first standard luminance value based on the first average pixel value and a first gamma characteristic corresponding to the central region and a second standard luminance value based on the second average pixel value and a second gamma characteristic corresponding to the non-central region, respectively.
After the first average pixel value of the center region and the second average pixel value of the non-center region are acquired through the above step S401, a first standard luminance value is determined based on the first average pixel value and the first gamma characteristic corresponding to the center region, and a second standard luminance value is determined based on the second average pixel value and the second gamma characteristic corresponding to the non-center region, respectively. In this way, the non-center area where the heat sink is provided and the center area where the heat sink is not provided can be distinguished.
S403, determining a standard brightness value of the non-central area based on the first standard brightness and the second standard brightness.
After the first standard luminance value and the second standard luminance value are determined based on the respective basis in step S402 described above, the standard luminance value of the non-center region is determined based on the first standard luminance and the second standard luminance, so that the influence of the center region can be taken into consideration in determining the standard luminance value of the non-center region. In one embodiment, the standard luminance value for each of the non-central regions may be calculated by:
Ln=EOTF (Vn) +1/8.EOTF (V center) 1.ltoreq.n.ltoreq.8
Where Vn is an RGB average pixel value of the non-center region, vcenter is an RGB average pixel value of the center region, and the gamma characteristic corresponding to the non-center region is employed to determine an electro-optical conversion function, thereby obtaining the standard luminance value of the non-center region.
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Another aspect of the embodiments of the present disclosure provides a control device for heat dissipation of a display device, which is configured to implement the control method in the foregoing embodiments, as shown in fig. 6, specifically including an acquisition module 10 and a determination module 20, where:
the obtaining module 10 is configured to obtain a standard brightness value of each area in a display assembly of the display device, where the display assembly includes at least one area, and the area has a corresponding heat dissipating device;
the determining module 20 is configured to determine, based on the standard luminance value, an output power of the heat dissipating device corresponding to each of the areas.
The acquiring module 10 and the determining module 20 in the embodiments of the present disclosure may implement any control method of the embodiments of the present disclosure in any manner, which is not described herein.
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Another aspect of the disclosed embodiments provides a display device, which includes a back plate and the control device described in the foregoing embodiments, where the heat dissipation device is disposed on the back plate. The display device may be a monitor having a small display size, a display having a large display size, or the like, and the display device realizes a display function based on predetermined optical characteristics by an internal display module.
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Another aspect of the embodiments of the present disclosure provides a storage medium, which is a computer-readable medium storing a computer program that, when executed by a processor, implements the methods provided by the first and third embodiments of the present disclosure, including steps S11 to S12 as follows:
s11, obtaining a standard brightness value of each area in a display assembly of the display device, wherein the display assembly at least comprises one area, and the area is provided with a corresponding heat dissipation device;
and S12, determining the output power of the heat dissipation device corresponding to each area based on the standard brightness value.
Further, the computer program, when executed by a processor, implements other methods provided by any of the above embodiments of the present disclosure
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
Another aspect of the embodiments of the present disclosure provides an electronic device, which may include at least a memory 901 and a processor 902, where the memory 901 stores a computer program, and the processor 902 implements a method provided by any embodiment of the present disclosure when executing the computer program on the memory 901, as shown in fig. 7. Exemplary, the electronic device computer program steps are as follows S21 to S22:
s21, obtaining a standard brightness value of each area in a display assembly of the display device, wherein the display assembly at least comprises one area, and the area is provided with a corresponding heat dissipation device;
s22, determining the output power of the heat dissipation device corresponding to each area based on the standard brightness value.
Further, the processor 902 also executes the computer program in any of the above embodiments.
According to the embodiment of the disclosure, the factors such as backlight brightness, gamma characteristic, pixel value and region position are comprehensively considered to reasonably control heat dissipation, so that self-adaptive adjustment and control of the heat dissipation device in the display device are intelligently realized, the optical characteristic of the display device is stable, and noise is reduced.
The storage medium may be contained in the electronic device; or may exist alone without being incorporated into the electronic device.
The storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: acquiring at least two internet protocol addresses; sending a node evaluation request comprising at least two internet protocol addresses to node evaluation equipment, wherein the node evaluation equipment selects an internet protocol address from the at least two internet protocol addresses and returns the internet protocol address; receiving an Internet protocol address returned by node evaluation equipment; wherein the acquired internet protocol address indicates an edge node in the content distribution network.
Alternatively, the storage medium carries one or more programs that, when executed by the electronic device, cause the electronic device to: receiving a node evaluation request comprising at least two internet protocol addresses; selecting an internet protocol address from at least two internet protocol addresses; returning the selected internet protocol address; wherein the received internet protocol address indicates an edge node in the content distribution network.
Computer program code for carrying out operations of the present disclosure may be written in one or more programming languages, including, but not limited to, an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the passenger computer, partly on the passenger computer, as a stand-alone software package, partly on the passenger computer and partly on a remote computer or entirely on the remote computer or server. In the case of remote computers, the remote computer may be connected to the passenger computer through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computer (e.g., connected through the internet using an internet service provider).
It should be noted that the storage medium described in the present disclosure may be a computer readable signal medium or a computer readable storage medium, or any combination of the two. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the context of this disclosure, a computer-readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, however, the computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, with the computer-readable program code embodied therein. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a storage medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, fiber optic cables, RF (radio frequency), and the like, or any suitable combination of the foregoing.
The flowcharts and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units involved in the embodiments of the present disclosure may be implemented by means of software, or may be implemented by means of hardware. Wherein the names of the units do not constitute a limitation of the units themselves in some cases.
The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.
In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in this disclosure is not limited to the specific combinations of features described above, but also covers other embodiments which may be formed by any combination of features described above or equivalents thereof without departing from the spirit of the disclosure. Such as those described above, are mutually substituted with the technical features having similar functions disclosed in the present disclosure (but not limited thereto).
Moreover, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limiting the scope of the present disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.
Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are example forms of implementing the claims.
While various embodiments of the present disclosure have been described in detail, the present disclosure is not limited to these specific embodiments, and various modifications and embodiments can be made by those skilled in the art on the basis of the concepts of the present disclosure, which modifications and modifications should fall within the scope of the claims of the present disclosure.
Claims (10)
1. A control method for heat dissipation of a display device, comprising the steps of:
obtaining a standard brightness value of each area in a display assembly of the display device, wherein the display assembly at least comprises one area, the area is provided with a corresponding heat dissipation device, and the heat dissipation device is a fan;
determining an output power of the heat sink corresponding to each of the regions based on the standard luminance values;
in the case where the display assembly includes a plurality of regions and the regions include a central region and a non-central region, wherein the non-central region has the corresponding heat dissipation device, obtaining a standard luminance value for each of the non-central regions in the display assembly of the display device includes:
acquiring a first average pixel value of a central area and a second average pixel value of the non-central area;
determining a first standard luminance value based on the first average pixel value and a first gamma characteristic corresponding to the central region and a second standard luminance value based on the second average pixel value and a second gamma characteristic corresponding to the non-central region, respectively;
a standard luminance value of the non-center region is determined based on the first standard luminance value and the second standard luminance value.
2. The control method according to claim 1, wherein the acquiring the standard luminance value of each region in the display assembly of the display device includes:
acquiring an average pixel value of the region and a gamma characteristic corresponding to the region;
a standard luminance value of the region is determined based on the average pixel value and the gamma characteristic.
3. The control method according to claim 2, wherein the determining a standard luminance value of the region based on the average pixel value and the gamma characteristic includes:
determining an electro-optic conversion formula based on the gamma characteristic;
a standard luminance value of the region is determined based on the average pixel value and the electro-optic conversion formula.
4. The control method according to claim 1, further comprising, in the case where the display assembly includes a plurality of the regions, dividing the plurality of the regions in a manner of n×m, wherein at least one of N, M is a natural number greater than 1.
5. The control method according to claim 1, wherein the determining the output power of the heat sink corresponding to each of the regions based on the standard luminance value includes:
and comparing the standard brightness value with different brightness thresholds, determining a first output power of the heat dissipation device corresponding to the region when the standard brightness value is larger than the brightness threshold, and determining a second output power of the heat dissipation device corresponding to the region when the standard brightness value is smaller than or equal to the brightness threshold, wherein the first output power is larger than the second output power.
6. The control method according to claim 5, wherein the number of the luminance threshold values is determined by a gear number of the heat sink.
7. A control device for heat dissipation of a display device, comprising:
the display device comprises an acquisition module, a display module and a display module, wherein the acquisition module is used for acquiring a standard brightness value of each area in a display assembly of the display device, the display assembly at least comprises one area, the area is provided with a corresponding heat dissipation device, and the heat dissipation device is a fan;
a determining module for determining an output power of the heat sink corresponding to each of the regions based on the standard luminance values;
in the case where the display assembly includes a plurality of regions and the regions include a central region and a non-central region, wherein the non-central region has the corresponding heat dissipation device, obtaining a standard luminance value for each of the non-central regions in the display assembly of the display device includes:
acquiring a first average pixel value of a central area and a second average pixel value of the non-central area;
determining a first standard luminance value based on the first average pixel value and a first gamma characteristic corresponding to the central region and a second standard luminance value based on the second average pixel value and a second gamma characteristic corresponding to the non-central region, respectively;
a standard luminance value of the non-center region is determined based on the first standard luminance value and the second standard luminance value.
8. A display device comprising a back plate, characterized by comprising the control device of claim 7, the heat sink being disposed on the back plate.
9. A storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any one of claims 1 to 6.
10. An electronic device comprising at least a memory, a processor, the memory having stored thereon a computer program, characterized in that the processor, when executing the computer program on the memory, realizes the steps of the method according to any of claims 1 to 6.
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| CN112203467B (en) * | 2020-08-25 | 2023-08-08 | 上海天马微电子有限公司 | Display heat dissipation device, display and display heat dissipation method |
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