CN105554587B - A kind of display control method, device and display device - Google Patents
A kind of display control method, device and display device Download PDFInfo
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- CN105554587B CN105554587B CN201510916870.8A CN201510916870A CN105554587B CN 105554587 B CN105554587 B CN 105554587B CN 201510916870 A CN201510916870 A CN 201510916870A CN 105554587 B CN105554587 B CN 105554587B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/485—End-user interface for client configuration
- H04N21/4854—End-user interface for client configuration for modifying image parameters, e.g. image brightness, contrast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
- H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Human Computer Interaction (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
A kind of display control method of the embodiment of the present invention offer, device and display device, belong to display technology field, for solving in the prior art, when showing in signal not comprising identification information, can not obtain display signal grey-scale range type, and then can not display pattern corresponding according to grey-scale range type set the problem of.This method includes：When display device starts, it sets the display pattern of display device to limitation range display pattern；It receives and shows signal；Judge the grayscale value per each pixel in frame image whether comprising the grayscale value for belonging to preset gray scale section；If so, setting the display pattern of display device to full scope display pattern；Wherein, it is the first grey-scale range to limit the grey-scale range shown by range display pattern；Grey-scale range shown by full scope display pattern is the second grey-scale range；Preset gray scale section belongs to the second grey-scale range and is not belonging to the first grey-scale range.The embodiment of the present invention is used to show the display of signal.
Description
Technical field
The present invention relates to a kind of display technology field more particularly to display control method, device and display devices.
Background technology
With the continuous development of science and technology, requirement of the user to video definition is higher and higher, using television set as display
Device shows high-definition multimedia interface (full name in English:High Definition Multimedia Interface, English
Referred to as：HDMI) scene of signal is also more and more.
In the prior art, the grey-scale range type of HDMI signals includes：Limit range (Limit range) and full scope
(Full range), wherein the grey-scale range for limiting range be 16 to 235 (16 represent it is completely black, 235 represent it is complete white)；Whole models
The grey-scale range enclosed be 0 to 255 (0 represent it is completely black, 255 represent it is complete white).When showing HDMI signals using television set, HDMI letters
Number the corresponding grayscale that could accurately show picture of display pattern that must be set with television set of grey-scale range type.Currently,
Television set can obtain the grey-scale range of HDMI signals for the HDMI signals comprising identification information by parsing the identification information
Type, and select corresponding display pattern to be shown according to the grey-scale range type of the HDMI signals of acquisition.
For the HDMI signals not comprising identification information, television set can not obtain the grey-scale range type of HDMI signals, this
When, television set can use acquiescence display pattern to show HDMI signals.In the process, in fact it could happen that the ash of HDMI signals
Order range type with the display module of television set is not corresponding happens, and then the problem of lead to distortion.Specifically,
If the grey-scale range type of HDMI signals is full scope, and television set is shown using limitation range display pattern, then is drawn
Face will appear the problem of dark portion and highlights loss of detail；If the grey-scale range type of HDMI signals is limitation range, and TV makes
It is shown with full scope display pattern, then picture will appear white level and be hard to tell the case where whitening with black.
Invention content
A kind of display control method of the embodiment of the present invention offer, device and display device, for solving in the prior art,
When showing in signal not comprising identification information, display device can not obtain display signal grey-scale range type, and then can not root
The problem of display pattern corresponding according to the grey-scale range type set of display signal.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
In a first aspect, a kind of display control method, is applied to display device；The method includes：
When the display device starts, it sets the display pattern of the display device to limitation range display pattern；
It receives and shows signal, the display signal includes an at least frame image；
Judge the grayscale value per each pixel in frame image whether comprising the grayscale value for belonging to preset gray scale section；
When the grayscale value includes to belong to the grayscale value in preset gray scale section, the display pattern of the display device is set
It is set to full scope display pattern；
Wherein, the grey-scale range shown by the limitation range display pattern is the first grey-scale range；The full scope
Grey-scale range shown by display pattern is the second grey-scale range；The preset gray scale section belong to second grey-scale range and
It is not belonging to first grey-scale range.
Second aspect provides a kind of display control unit, is applied to display device, and the display control unit includes：It connects
Receive unit, judging unit and processing unit；
The processing unit is used for when the display device starts, and the display pattern setting of the display device is limited
Range display pattern processed；
The receiving unit shows signal for receiving, and the display signal includes an at least frame image；
The judging unit is additionally operable to judge whether the grayscale value of each pixel in every frame image includes to belong to preset gray scale area
Between grayscale value；
The processing unit is additionally operable to when the grayscale value includes to belong to the grayscale value in preset gray scale section, will be described aobvious
The display pattern of showing device is set as full scope display pattern；
Wherein, the grey-scale range shown by the limitation range display pattern is the first grey-scale range；The full scope
Grey-scale range shown by display pattern is the second grey-scale range；The preset gray scale section belong to second grey-scale range and
It is not belonging to first grey-scale range.
The third aspect provides a kind of display device, including the display control unit described in second aspect.
Display control method, device and display device provided in an embodiment of the present invention first will when display device is switched on
The display pattern of display device is set as limitation range display pattern, then receives and shows signal, and judges to show that signal includes
Each frame image in each pixel grayscale value whether comprising the grayscale value in preset gray scale section is belonged to, when grayscale value includes to belong to
When the grayscale value of pre-set interval, it sets the display pattern of display device to full scope display pattern；Wherein, limitation range is aobvious
Show that the grey-scale range shown by pattern is the first grey-scale range；Grey-scale range shown by full scope display pattern is the second ash
Order range；Preset gray scale section belongs to the second grey-scale range and is not belonging to the first grey-scale range.That is, the embodiment of the present invention can root
The grayscale value of each pixel judges the grey-scale range type of display signal in the image for including according to display signal, and according to aobvious
Show that the display mode conversion of display device is corresponding with the display grey-scale range type of signal by the grey-scale range type of signal
Display pattern, compared with the prior art in when show in signal do not include identification information when, display device can not obtain display letter
Number grey-scale range type, and then can not be according to the corresponding display pattern of grey-scale range type set of display signal, the present invention is real
Apply example can according to display signal grey-scale range type by the display mode conversion of display device be with display signal grayscale
The corresponding display pattern of wide-style, and then can accurately show the grayscale level of picture, improve display effect.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of step flow chart of display control method provided in an embodiment of the present invention；
Fig. 2 is the step flow chart of another display control method provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic diagram of display control unit provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of another display control unit provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention inventive principle be：It sets the display pattern of display device to limitation range in booting and shows mould
Formula, i.e., using limitation range display pattern as the acquiescence display pattern of display device；After receiving display signal, display letter is judged
Whether number grayscale value for including includes the grayscale value for belonging to preset gray scale section, wherein preset gray scale section belongs to full scope
Grey-scale range shown by display pattern and it is not belonging to the grey-scale range shown by limitation range display pattern；If including showing
Show that the grey-scale range type of signal is full scope, the display pattern of display device is switched to full scope display pattern；If
Do not include, then the display pattern of display device is not switched over.
The embodiment of the present invention provides a kind of display control method, which is applied to display device, specifically,
Shown in referring to Fig.1, this method comprises the following steps：
S11, when display device starts, by the display pattern of display device be set as limitation range display pattern.
S12, display signal is received.Wherein, display signal includes an at least frame image.
S13, judge whether the grayscale value per each pixel in frame image includes the grayscale value for belonging to preset gray scale section.
After step s 13, if grayscale value includes the grayscale value for belonging to preset gray scale section, S14 is thened follow the steps；If no
Including belong to the grayscale value in preset gray scale section, then return to step S12.
S14, the display pattern of display device is set to full scope display pattern.
Wherein, it is the first grey-scale range, full scope display pattern to limit the grey-scale range shown by range display pattern
Shown grey-scale range is the second grey-scale range, and preset gray scale section belongs to the second grey-scale range and is not belonging to the first grayscale model
It encloses.
It should be noted that the display signal in the embodiment of the present invention can be HDMI signals, or other signals
The display signal of output end output, the embodiment of the present invention is to showing that the output end of signal does not limit.Show the grayscale model of signal
It includes limitation range and full scope to enclose type, and limitation range display pattern is display pattern corresponding with limitation range, entirely
Portion's range display pattern is display pattern corresponding with full scope.
Specifically, when it is to limit the display signal of range to show signal, shows and do not include preset gray scale section in signal
Grayscale value, so display device is still set as the limitation display pattern of acquiescence, since the display pattern of display device is and aobvious
Show the corresponding limitation range display pattern of signal, it is possible to the grayscale level of accurate display picture.When display signal is all
When the display signal of range, the grayscale value in preset gray scale section may be included by showing in signal, if judging to belong to pre-set interval
Grayscale value, then display signal is shown using full scope display pattern, since display signal is the aobvious of full scope
Show signal, and display device is set as corresponding full scope display pattern, it is possible to the grey stratum of accurate display picture
It is secondary.Therefore this invention ensures that, it, can be accurate no matter the grey-scale range type of display signal is limitation range or full scope
The really grayscale level of display picture, improves display effect.
According to the above, those skilled in the art can readily occur in when display device starts, by display device
Display pattern is set as full scope display pattern, i.e., shows mould using full scope display pattern as the acquiescence of display device
Formula, if but the acquiescence display pattern using full scope display pattern as display device, obtain display signal it is each
In frame figure after the grayscale value of each pixel, because the grey-scale range shown by limitation range display pattern is shown included in full scope
Within grey-scale range shown by pattern, so can not be judged to show that signal is limited according to the grayscale value of the display signal of acquisition
Range processed, and then the display pattern of display device can not be switched to corresponding limitation model when showing that signal is limitation range
Enclose display pattern.
Display control method provided in an embodiment of the present invention, when display device is switched on, first by the display of display device
Mode setting be limitation range display pattern, then receive show signal, and judge show signal include every frame image in respectively
Whether the grayscale value of pixel is comprising the grayscale value for belonging to preset gray scale section, when grayscale value includes the grayscale value for belonging to pre-set interval
When, set the display pattern of display device to full scope display pattern；Wherein, the ash shown by range display pattern is limited
Order range is the first grey-scale range；Grey-scale range shown by full scope display pattern is the second grey-scale range；Preset gray scale
Section belongs to the second grey-scale range and is not belonging to the first grey-scale range.That is, the embodiment of the present invention can include according to display signal
The grayscale value of each pixel judges the grey-scale range type of display signal in image, and according to the grey-scale range of display signal
The display mode conversion of display device is display pattern corresponding with the display grey-scale range type of signal by type, compared to existing
Having in technology when showing in signal not comprising identification information, display device can not obtain display signal grey-scale range type, into
And it can not can be believed according to display according to the corresponding display pattern of grey-scale range type set of display signal, the embodiment of the present invention
Number grey-scale range type by the display mode conversion of display device be that the grey-scale range type of signal is corresponding shows with display
Pattern, and then can accurately show the grayscale level of picture, improve display effect.
Further, with reference to shown in Fig. 2, in above-mentioned steps 13, judge whether grayscale value includes to belong to preset gray scale section
Grayscale value may include steps of：
S131, it will show that each frame image of signal is divided at least one image-region.
S132, the average gray-scale value for obtaining each pixel in each image-region.
S133, judge whether the average gray-scale value of each pixel in each image-region includes to belong to preset gray scale section
Grayscale value.
It should be noted that display signal includes an at least frame image, and each frame image corresponds to display device respectively
Display signal is divided at least one image-region, will as be filled in display according to each frame image by one display picture
The middle position shown is set, each frame image is divided into several image blocks, each image block is an image district
Domain.In addition, substantially multiple data of display signal, so will show that each frame image of signal is divided at least one image
Display signal is substantially divided into multiple data segments by region, each data segment corresponds to an image block.Further, originally
How do not limited in inventive embodiments will show that the frame image in signal is divided at least one image-region, the shape of image block
Shape and size can be set according to actual demand.Illustratively, a frame image averaging can be divided into 10 image districts
Domain.In addition, the shape of image-region can be rectangle or circle or irregular shape, can also have various shapes simultaneously.This hair
The shapes and sizes of image-region are not limited in bright embodiment yet.
It should also be noted that, when whether judging grayscale value comprising the grayscale value for belonging to preset gray scale section, if to every
The grayscale value of each pixel all judges one by one in one frame image signal, then needs to judge whether very more grayscale values belongs to default ash
Rank section, this needs very big memory space come when storing these grayscale values, and judging whether grayscale value belongs to pre-set interval
Calculation amount it is also very big.By that will show that signal is divided at least one image-region in above-described embodiment, and obtain each
The average gray-scale value of each pixel in a image-region, finally judge each pixel in each image-region average gray-scale value whether
Including belonging to the grayscale value in preset gray scale section, it is possible to reduce the quantity of grayscale value, and then reduce storage grayscale value and need
Memory space and reduce the calculation amount for judging whether grayscale value belongs to pre-set interval.Specifically, display signal is divided into more
Few image-region can be determined according to the computing capability of the size of display device memory and display equipment, of the invention
It is not limited in embodiment.Illustratively, display signal can be divided into 100 image-regions, and obtains this 100 figures respectively
As average gray-scale value of the average as each pixel in the image-region of the grayscale value of each pixel in region, this is finally judged
Whether the grayscale value in preset gray scale section is included in 100 average gray-scale values.
Display control method provided in an embodiment of the present invention, by will show that each frame image of signal is divided at least one
A image-region, then obtains the average gray-scale value of each pixel in each image-region, finally judges each image-region
In each pixel average gray-scale value whether comprising belonging to the grayscale value in preset gray scale section, therefore storage grayscale value can be reduced need
The memory space wanted simultaneously reduces the calculation amount judged when whether grayscale value belongs to pre-set interval.
Further, display signal is shown and can be realized by the following two kinds of programs in above-described embodiment.The
It is a kind of：It receives after showing signal, first determines whether the grayscale value that display signal includes includes to belong to preset gray scale section
Grayscale value, if including, it is shown using full scope display pattern；If not including, full scope display pattern is used
It is shown.It second, receives after showing signal, the display signal is shown using limitation range display pattern first
Show, and judges whether the grayscale value that display signal includes includes the grayscale value for belonging to preset gray scale section during display, if
Including then being shown to the subsequent display signal received using full scope display pattern；If not including, it is continuing with
Full scope display pattern shows the subsequent display signal received.But it if is realized by the first scheme aobvious
Show, then during judging to show whether the grayscale value that signal includes includes to belong to the grayscale value in preset gray scale section, currently
The display signal of reception can not be shown, and just can normally be shown after need to obtaining judging result, it is thus possible to can make display
Delay, and then influence the experience of user.It is advantageous to, it is shown using second of display mode.I.e., it is preferred that above-mentioned
Embodiment provide method further include：
Before judging to show that grayscale value includes to belong to the grayscale value in preset gray scale section, limitation range display pattern is used
Display signal is shown；
After judging to show that grayscale value includes to belong to the grayscale value in preset gray scale section, full scope display pattern is used
Display signal is shown.
The display control method that above-described embodiment provides can timely show display signal, it is possible to avoid
Influence the experience of user.
Further, in embodiments of the present invention, the first grey-scale range is：16-235, the second grey-scale range are：0-255,
Preset gray scale section is：0-15 and 236-255.
Since the grey-scale range shown by limitation range display pattern is：16-235, shown by full scope display pattern
Grey-scale range be：0-255, if therefore showing in signal comprising the grayscale value 0-15 and 236- for belonging to preset gray scale section
255, then illustrate that the grey-scale range type of the display signal is full scope, so needing use corresponding with full scope at this time
Full scope display pattern shows display signal.
The embodiment of the present invention provides a kind of display control unit, which is applied to display device.Specifically,
With reference to shown in Fig. 3, which includes：Receiving unit 1, judging unit 2 and processing unit 3；
Receiving unit 1 shows signal for receiving.Wherein, display signal includes an at least frame image.
Whether judging unit 2 is used to judge the grayscale value of each pixel in every frame image comprising the ash for belonging to preset gray scale section
Rank value.
Processing unit 3 is used for when display device starts, and setting the display pattern of display device to limitation range shows
Pattern and when grayscale value include belong to preset gray scale section grayscale value when, by the display pattern of display device be set as all
Range display pattern；
Wherein, it is the first grey-scale range to limit the grey-scale range shown by range display pattern；Full scope display pattern
Shown grey-scale range is the second grey-scale range；Preset gray scale section belongs to the second grey-scale range and is not belonging to the first grayscale model
It encloses.
Display control unit provided in an embodiment of the present invention, when display device is switched on, first by the display of display device
Mode setting be limitation range display pattern, then receive show signal, and judge show signal include each frame image in
Whether the grayscale value of each pixel is comprising the grayscale value for belonging to preset gray scale section, when grayscale value includes the grayscale for belonging to pre-set interval
When value, it sets the display pattern of display device to full scope display pattern；Wherein, it limits shown by range display pattern
Grey-scale range is the first grey-scale range；Grey-scale range shown by full scope display pattern is the second grey-scale range；Default ash
Rank section belongs to the second grey-scale range and is not belonging to the first grey-scale range.That is, the embodiment of the present invention can be according to display signal packet
The grayscale value of each pixel judges the grey-scale range type of display signal in the image included, and according to the grayscale of display signal
The display mode conversion of display device is display pattern corresponding with the display grey-scale range type of signal by wide-style, is compared
In when showing in signal not comprising identification information, display device can not obtain display signal grey-scale range class in the prior art
Type, and then can not be according to the corresponding display pattern of grey-scale range type set of display signal, the embodiment of the present invention can basis
The display mode conversion of display device is corresponding to the display grey-scale range type of signal by the grey-scale range type of display signal
Display pattern, and then can accurately show the grayscale level of picture, improve display effect.
Further, with reference to shown in Fig. 4, judging unit 2 includes：Subelement 21 is divided, subelement 22 is obtained and judges son
Unit 23；
Subelement 21 is divided for will show that each frame image of signal is divided at least one image-region.
Obtain the average gray-scale value that subelement 22 is used to obtain each pixel in each image-region.
Judgment sub-unit 23 is used to judge whether the average gray-scale value of each pixel in each image-region to include to belong to pre-
If the grayscale value in grayscale section.
Subelement is divided in above-described embodiment will show that signal is divided at least one image-region, obtains subelement and obtains
The average gray-scale value of each pixel in each image-region, judgment sub-unit judge being averaged for each pixel in each image-region
Whether grayscale value includes to belong to the grayscale value in preset gray scale section, therefore can reduce the memory space of storage grayscale value needs simultaneously
Reduce the calculation amount judged when whether grayscale value belongs to pre-set interval.
Optionally, with reference to shown in Fig. 4, device further includes display unit 4；
Display unit 4 uses limitation model before judging to show that grayscale value includes to belong to the grayscale value in preset gray scale section
Display pattern is enclosed to show display signal；Judge obtain grayscale value include belong to preset gray scale section grayscale value it
Afterwards, display signal is shown using full scope display pattern.
Optionally, the first grey-scale range is：16-235, the second grey-scale range are：0-255, preset gray scale section are：0-15
And 236-255.
It should be noted that the processing unit 3 in the present embodiment can be the processor individually set up, can also be integrated in
Display device (such as：Television set) some processor in realize, in addition it is also possible to be stored in the form of program code aobvious
In the memory of showing device, is called by some processor of display device and execute the function of the above processing unit 3.Here
Processor can be a central processing unit (full name in English：Central Processing Unit, English abbreviation：CPU), or
Person is specific integrated circuit (full name in English：Application Specific Integrated Circuit, English abbreviation：
ASIC), or it is arranged to implement one or more integrated circuits of the embodiment of the present invention.Receiving unit 1 can be display
The interface circuit for having receive capabilities on device, such as receiver or information receiving interface.Moreover, it is judged that unit 2 can be independent
The logic circuit set up can also be integral to the processor and realize in a processor.
Yet another embodiment of the invention provides a kind of display device, which includes the aobvious of any of the above-described embodiment offer
Show control device.
Illustratively, which can be television set.In addition, the television set can be digital television, it can also
It is simulated television, can also be other types of television set, the type of television set is not limited in the embodiment of the present invention, only
The display control unit to be provided including above-mentioned implementation is all included in the scope of protection of the present invention.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (10)
1. a kind of display control method, which is characterized in that it is applied to display device, the method includes：
When the display device starts, it sets the display pattern of the display device to limitation range display pattern；
It receives and shows signal, the display signal includes an at least frame image；
Judge the grayscale value per each pixel in frame image whether comprising the grayscale value for belonging to preset gray scale section；
When the grayscale value includes to belong to the grayscale value in preset gray scale section, set the display pattern of the display device to
Full scope display pattern；
Wherein, the grey-scale range shown by the limitation range display pattern is the first grey-scale range；The full scope is shown
Grey-scale range shown by pattern is the second grey-scale range；The preset gray scale section belongs to second grey-scale range and does not belong to
In first grey-scale range.
2. according to the method described in claim 1, it is characterized in that, described judge whether the grayscale value includes to belong to default ash
The grayscale value in rank section includes：
Each frame image of the display signal is divided at least one image-region；
Obtain the average gray-scale value of each pixel in each described image region；
Judge the average gray-scale value of each pixel in each described image region whether comprising the grayscale for belonging to preset gray scale section
Value.
3. according to the method described in claim 1, it is characterized in that, the method further includes：
Before judging to show that the grayscale value includes to belong to the grayscale value in preset gray scale section, limitation range display pattern is used
The display signal is shown；
After judging to show that the grayscale value includes to belong to the grayscale value in preset gray scale section, full scope display pattern is used
The display signal is shown.
4. according to the method described in claim 1, it is characterized in that, first grey-scale range is：16-235, second ash
Order range is：0-255, the preset gray scale section are：0-15 and 236-255.
5. a kind of display control unit, which is characterized in that be applied to display device；The display control unit includes：It receives single
Member, judging unit and processing unit；
The processing unit is used for when the display device starts, and sets the display pattern of the display device to limitation model
Enclose display pattern；
The receiving unit shows signal for receiving, and the display signal includes an at least frame image；
Whether the judging unit is used to judge the grayscale value of each pixel in every frame image comprising the ash for belonging to preset gray scale section
Rank value；
The processing unit is additionally operable to, when the grayscale value includes to belong to the grayscale value in preset gray scale section, the display be filled
The display pattern set is set as full scope display pattern；
Wherein, the grey-scale range shown by the limitation range display pattern is the first grey-scale range；The full scope is shown
Grey-scale range shown by pattern is the second grey-scale range；The preset gray scale section belongs to second grey-scale range and does not belong to
In first grey-scale range.
6. device according to claim 5, which is characterized in that the judging unit includes：It divides subelement, obtain son list
Member and judgment sub-unit；
The subelement that divides is used to each frame image of the display signal being divided at least one image-region；
The average gray-scale value for obtaining subelement and being used to obtain each pixel in each described image region；
The judgment sub-unit is used to judge whether the average gray-scale value of each pixel in each described image region to include to belong to
The grayscale value in preset gray scale section.
7. device according to claim 5, which is characterized in that described device further includes display unit；
The display unit is used for before judging to show that the grayscale value includes to belong to the grayscale value in preset gray scale section, is used
Limitation range display pattern shows the display signal；Judging to show that the grayscale value includes to belong to preset gray scale area
Between grayscale value after, the display signal is shown using full scope display pattern.
8. device according to claim 5, which is characterized in that first grey-scale range is：16-235, second ash
Order range is：0-255, the preset gray scale section are：0-15 and 236-255.
9. a kind of display device, which is characterized in that including claim 5-8 any one of them display control units.
10. display device according to claim 9, which is characterized in that the display device is television set.
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| CN109064990A (en) * | 2018-09-19 | 2018-12-21 | 苏州佳世达电通有限公司 | A kind of display device and its image regulating method |
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| CN102843609A (en) * | 2012-09-27 | 2012-12-26 | 深圳Tcl新技术有限公司 | Smart television playing method and smart television |
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| JPH08223600A (en) * | 1995-02-08 | 1996-08-30 | Sony Corp | Recorder, reproducer and recording and reproducing device of television signal |
| CN1893635A (en) * | 2005-07-01 | 2007-01-10 | 上海乐金广电电子有限公司 | Digital video-frequency interface transmission device of set-top box and method therefor |
| CN102843609A (en) * | 2012-09-27 | 2012-12-26 | 深圳Tcl新技术有限公司 | Smart television playing method and smart television |
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