CN105554587A - Display control method, device and display device - Google Patents
Display control method, device and display device Download PDFInfo
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- CN105554587A CN105554587A CN201510916870.8A CN201510916870A CN105554587A CN 105554587 A CN105554587 A CN 105554587A CN 201510916870 A CN201510916870 A CN 201510916870A CN 105554587 A CN105554587 A CN 105554587A
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- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 241000276489 Merlangius merlangus Species 0.000 description 1
Classifications
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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
The embodiment of the invention provides a display control method, a display control device and a display device and belongs to the display technical field. According to the prior art, when display signals do not contain identification information, the gray scale range type of the display signals cannot be obtained, and as a result, a corresponding display mode cannot be set according to the to the gray scale range type, while, with the display control method, the display control device and the display device of the invention adopted, the problems in the prior art can be solved. The method includes the following steps that: when the display device is started, the display mode of the display device is set to a limited range display mode; display signals are received; whether the gray scale values of the pixels in each image frame contain gray scale values which belong to a preset gray scale interval is judged; and if the gray scale values of the pixels in each image frame contain the gray scale values which belong to the preset gray scale interval, the display mode of the display device is set to a full range display mode. According to the method, a gray scale range displayed by the limited range display mode is a first gray scale range, a gray scale range displayed by the full range display mode is a second gray scale range, and the preset gray scale interval belongs to the second gray scale range and does not belong to the first gray scale range. The display control method, the display control device and the display device provided by the embodiment of the invention are used for displaying display signals.
Description
Technical field
The present invention relates to Display Technique field, particularly relate to a kind of display control method, device and display unit.
Background technology
Along with the development of science and technology, the requirement of user to video definition is more and more higher, the scene using television set to carry out high resolution displayed multimedia interface (English full name: HighDefinitionMultimediaInterface, English abbreviation: HDMI) signal as display also gets more and more.
In prior art, the grey-scale range type of HDMI signal comprises: limited field (Limitrange) and four corner (Fullrange), wherein, the grey-scale range of limited field is 16 to 235 (16 representatives are entirely black, and 235 representatives are complete white); The grey-scale range of four corner is 0 to 255 (0 representative is entirely black, and 255 representatives are complete white).When using television set display HDMI signal, the grey-scale range type of HDMI signal must the GTG of the accurate display frame of ability corresponding with the display mode that television set sets.At present, television set can obtain the grey-scale range type of HDMI signal for the HDMI signal comprising identifying information by resolving this identifying information, and the display mode corresponding according to the grey-scale range type selecting of the HDMI signal obtained shows.
For the HDMI signal not comprising identifying information, television set cannot obtain the grey-scale range type of HDMI signal, and now, television set can use acquiescence display mode to show HDMI signal.In the process, may occur that the grey-scale range type of the HDMI signal situation not corresponding with the display module of television set occurs, and then cause the problem of distortion.Specifically, if the grey-scale range type of HDMI signal is four corner, and television set uses limited field display mode to show, then picture there will be the problem of dark portion and highlights loss of detail; If the grey-scale range type of HDMI signal is limited field, and TV uses four corner display mode to show, then picture there will be white level and is hard to tell the situation with black whiting.
Summary of the invention
Embodiments of the invention provide a kind of display control method, device and display unit, for solving in prior art, when not comprising identifying information in display, display unit cannot obtain display grey-scale range type, and then cannot according to the problem of display mode corresponding to the grey-scale range type set of display.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, a kind of display control method, is applied to display unit; Described method comprises:
When described display unit starts, the display mode of described display unit is set to limited field display mode;
Receive display, described display comprises at least one two field picture;
Judge whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval;
When described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, the display mode of described display unit is set to four corner display mode;
Wherein, the grey-scale range shown by described limited field display mode is the first grey-scale range; Grey-scale range shown by described four corner display mode is the second grey-scale range; Described preset gray scale interval belongs to described second grey-scale range and does not belong to described first grey-scale range.
Second aspect, provides a kind of display control unit, is applied to display unit, and described display control unit comprises: receiving element, judging unit and processing unit;
Described processing unit is used for, when described display unit starts, the display mode of described display unit being set to limited field display mode;
Described receiving element is for receiving display, and described display comprises at least one two field picture;
Described judging unit is also for judging whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval;
The display mode of described display unit also for when described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, is set to four corner display mode by described processing unit;
Wherein, the grey-scale range shown by described limited field display mode is the first grey-scale range; Grey-scale range shown by described four corner display mode is the second grey-scale range; Described preset gray scale interval belongs to described second grey-scale range and does not belong to described first grey-scale range.
The third aspect, provides a kind of display unit, comprises the display control unit described in second aspect.
The display control method that the embodiment of the present invention provides, device and display unit, when display unit is started shooting, first the display mode of display unit is set to limited field display mode, then display is received, and whether the grey decision-making of each pixel comprises the grey decision-making belonging to preset gray scale interval in judging each two field picture that display comprises, when grey decision-making comprises the grey decision-making belonging to pre-set interval, the display mode of display unit is set to four corner display mode; Wherein, the grey-scale range shown by limited field display mode is the first grey-scale range; Grey-scale range shown by four corner display mode is the second grey-scale range; Preset gray scale interval belongs to the second grey-scale range and does not belong to the first grey-scale range.Namely, in the image that the embodiment of the present invention can comprise according to display, the grey-scale range type of grey decision-making to display of each pixel judges, and according to the grey-scale range type of display, the display mode of display unit is converted to the display mode corresponding to the grey-scale range type of display, compared in prior art when not comprising identifying information in display, display unit cannot obtain display grey-scale range type, and then cannot according to the corresponding display mode of grey-scale range type set of display, the display mode of display unit can be converted to the display mode corresponding to the grey-scale range type of display according to the grey-scale range type of display by the embodiment of the present invention, and then can the GTG level of accurate display frame, improve display effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The flow chart of steps of a kind of display control method that Fig. 1 provides for the embodiment of the present invention;
The flow chart of steps of the another kind of display control method that Fig. 2 provides for the embodiment of the present invention;
The schematic diagram of a kind of display control unit that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of the another kind of display control unit that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Inventive principle of the present invention is: the display mode of display unit is set to limited field display mode, by the acquiescence display mode of limited field display mode as display unit when starting shooting; After receiving display, judge whether the grey decision-making that display comprises comprises the grey decision-making belonging to preset gray scale interval, wherein, preset gray scale interval belongs to the grey-scale range shown by four corner display mode and the grey-scale range do not belonged to shown by limited field display mode; If comprise, then the grey-scale range type of display is four corner, and the display mode of display unit is switched to four corner display mode; If do not comprise, then the display mode of display unit is not switched.
The embodiment of the present invention provides a kind of display control method, and this display control method is applied to display unit, concrete, and with reference to shown in Fig. 1, the method comprises the steps:
S11, when display unit starts, the display mode of display unit is set to limited field display mode.
S12, reception display.Wherein, display comprises at least one two field picture.
S13, judge whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval.
After step s 13, if grey decision-making comprises the grey decision-making belonging to preset gray scale interval, then perform step S14; If do not comprise the grey decision-making belonging to preset gray scale interval, then return step S12.
S14, the display mode of display unit is set to four corner display mode.
Wherein, the grey-scale range shown by limited field display mode is the first grey-scale range, and the grey-scale range shown by four corner display mode is the second grey-scale range, and preset gray scale interval belongs to the second grey-scale range and do not belong to the first grey-scale range.
It should be noted that, the display in the embodiment of the present invention can be HDMI signal, and the display that also can export for other signal output part, the output of the embodiment of the present invention to display does not limit.The grey-scale range type of display comprises limited field and four corner, and limited field display mode is the display mode corresponding with limited field, and four corner display mode is the display mode corresponding with four corner.
Concrete, when display is the display of limited field, the grey decision-making in preset gray scale interval is not comprised in display, so display unit is still set to the restriction display mode given tacit consent to, display mode due to display unit is the limited field display mode corresponding with display, so can the GTG level of accurate display frame.When display is the display of four corner, the grey decision-making in preset gray scale interval may be comprised in display, the grey decision-making of pre-set interval is belonged to if judge, four corner display mode is then used to show display, because display is the display of four corner, and display unit is set to corresponding four corner display mode, so can the GTG level of accurate display frame.Therefore this invention ensures that, no matter the grey-scale range type of display is limited field or four corner, can both the GTG level of accurate display frame, improve display effect.
According to foregoing, those skilled in the art can expect when display unit starts easily, the display mode of display unit is set to four corner display mode, by the acquiescence display mode of four corner display mode as display unit, if but use four corner display mode as the acquiescence display mode of display unit, after then obtaining the grey decision-making of each pixel in each frame figure of display, because the grey-scale range shown by limited field display mode is included within the grey-scale range shown by four corner display mode, so cannot judge that display is limited field according to the grey decision-making of the display obtained, and then the display mode of display unit cannot be switched to corresponding limited field display mode when display is limited field.
The display control method that the embodiment of the present invention provides, when display unit is started shooting, first the display mode of display unit is set to limited field display mode, then display is received, and whether the grey decision-making of each pixel comprises the grey decision-making belonging to preset gray scale interval in judging every two field picture that display comprises, when grey decision-making comprises the grey decision-making belonging to pre-set interval, the display mode of display unit is set to four corner display mode; Wherein, the grey-scale range shown by limited field display mode is the first grey-scale range; Grey-scale range shown by four corner display mode is the second grey-scale range; Preset gray scale interval belongs to the second grey-scale range and does not belong to the first grey-scale range.Namely, the grey-scale range type of grey decision-making to display that the embodiment of the present invention can comprise each pixel in image according to display judges, and according to the grey-scale range type of display, the display mode of display unit is converted to the display mode corresponding to the grey-scale range type of display, compared in prior art when not comprising identifying information in display, display unit cannot obtain display grey-scale range type, and then cannot according to the corresponding display mode of grey-scale range type set of display, the display mode of display unit can be converted to the display mode corresponding to the grey-scale range type of display according to the grey-scale range type of display by the embodiment of the present invention, and then can the GTG level of accurate display frame, improve display effect.
Further, with reference to shown in Fig. 2, in above-mentioned steps 13, judge whether grey decision-making comprises the grey decision-making belonging to preset gray scale interval and can comprise the steps:
S131, each two field picture of display is divided at least one image-region.
S132, obtain the average gray-scale value of each pixel in each image-region.
S133, judge whether the average gray-scale value of each pixel in each image-region comprises the grey decision-making belonging to preset gray scale interval.
It should be noted that, display comprises at least one two field picture, and a display frame of the corresponding display unit of each two field picture difference, display is divided at least one image-region, be and will carry out according to each two field picture the position that shows in a display device, each two field picture is divided into several image blocks, and each image block is an image-region.In addition, the essence of display is multiple data, so each two field picture of display is divided at least one image-region, essence for display is divided into multiple data segment, the corresponding image block of each data segment.Further, do not limit in the embodiment of the present invention and how the two field picture in display is divided at least one image-region, the shape of image block and size can set according to the actual requirements.Exemplary, a two field picture on average can be divided into 10 image-regions.In addition, the shape of image-region can be that rectangle is circular or irregularly shaped, also can have various shape simultaneously.Shape and the size of image-region is not limited in the embodiment of the present invention yet.
Also it should be noted that, when judging whether grey decision-making comprises the grey decision-making belonging to preset gray scale interval, if judge all one by one the grey decision-making of pixel each in each frame image signal, then need to judge whether very many grey decision-making belong to preset gray scale interval, this needs very large memory space to store these grey decision-making, and amount of calculation when judging whether grey decision-making belongs to pre-set interval is also very large.By display is divided at least one image-region in above-described embodiment, and obtain the average gray-scale value of each pixel in each image-region, finally judge whether the average gray-scale value of each pixel in each image-region comprises the grey decision-making belonging to preset gray scale interval, so can reduce the quantity of grey decision-making, and then the memory space reducing to store grey decision-making needs also reduces to judge whether grey decision-making belongs to the amount of calculation of pre-set interval.Concrete, display being divided into how many image-regions can determine according to the computing capability of the size of display device memory space and display device, does not limit in the embodiment of the present invention.Exemplary, display can be divided into 100 image-regions, and obtain the average gray-scale value of average as pixel each in this image-region of the grey decision-making of each pixel in these 100 image-regions respectively, finally judge the grey decision-making whether comprising preset gray scale interval in these 100 average gray-scale value.
The display control method that the embodiment of the present invention provides, by each two field picture of display is divided at least one image-region, then the average gray-scale value of each pixel in each image-region is obtained, finally judge whether the average gray-scale value of each pixel in each image-region comprises the grey decision-making belonging to preset gray scale interval, therefore can reduce to store memory space that grey decision-making needs and reduce to judge amount of calculation when whether grey decision-making belongs to pre-set interval.
Further, carry out display to display in above-described embodiment can realize by the following two kinds of programs.The first: after receiving display, first judge whether the grey decision-making that display comprises comprises the grey decision-making belonging to preset gray scale interval, if comprise, then use four corner display mode to show; If do not comprise, then four corner display mode is used to show.The second, after receiving display, first limited field display mode is used to show this display, and in procedure for displaying, judge whether the grey decision-making that display comprises comprises the grey decision-making belonging to preset gray scale interval, if comprise, then four corner display mode is used to show the follow-up display received; If do not comprise, then continue to use four corner display mode to show the follow-up display received.But, if realize display by the first scheme, then judging whether the grey decision-making that display comprises comprises in the process of the grey decision-making belonging to preset gray scale interval, the display of current reception cannot show, and just can normally show after judged result need be drawn, therefore may make display delay, and then affect the experience of user.So preferred, the second display mode is used to show.That is, preferably, the method that above-described embodiment provides also comprises:
Before judgement show that grey decision-making comprises the grey decision-making belonging to preset gray scale interval, limited field display mode is used to show display;
After judgement show that grey decision-making comprises the grey decision-making belonging to preset gray scale interval, four corner display mode is used to show display.
The display control method that above-described embodiment provides can show display timely, so can avoid the experience affecting user.
Further, in embodiments of the present invention, the first grey-scale range is: 16-235, and the second grey-scale range is: 0-255, and preset gray scale interval is: 0-15 and 236-255.
Grey-scale range shown by limited field display mode is: 16-235, grey-scale range shown by four corner display mode is: 0-255, if therefore comprise grey decision-making 0-15 and 236-255 belonging to preset gray scale interval in display, then illustrate that the grey-scale range type of this display is four corner, so now need to use the four corner display mode corresponding with four corner to show display.
The embodiment of the present invention provides a kind of display control unit, and this display control unit is applied to display unit.Concrete, with reference to shown in Fig. 3, this display control unit 10 comprises: receiving element 1, judging unit 2 and processing unit 3;
Receiving element 1 is for receiving display.Wherein, display comprises at least one two field picture.
Judging unit 2 is for judging whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval.
The display mode of display unit, for when display unit starts, is set to limited field display mode and when grey decision-making comprises the grey decision-making belonging to preset gray scale interval, the display mode of display unit is set to four corner display mode by processing unit 3;
Wherein, the grey-scale range shown by limited field display mode is the first grey-scale range; Grey-scale range shown by four corner display mode is the second grey-scale range; Preset gray scale interval belongs to the second grey-scale range and does not belong to the first grey-scale range.
The display control unit that the embodiment of the present invention provides, when display unit is started shooting, first the display mode of display unit is set to limited field display mode, then display is received, and whether the grey decision-making of each pixel comprises the grey decision-making belonging to preset gray scale interval in judging each two field picture that display comprises, when grey decision-making comprises the grey decision-making belonging to pre-set interval, the display mode of display unit is set to four corner display mode; Wherein, the grey-scale range shown by limited field display mode is the first grey-scale range; Grey-scale range shown by four corner display mode is the second grey-scale range; Preset gray scale interval belongs to the second grey-scale range and does not belong to the first grey-scale range.Namely, in the image that the embodiment of the present invention can comprise according to display, the grey-scale range type of grey decision-making to display of each pixel judges, and according to the grey-scale range type of display, the display mode of display unit is converted to the display mode corresponding to the grey-scale range type of display, compared in prior art when not comprising identifying information in display, display unit cannot obtain display grey-scale range type, and then cannot according to the corresponding display mode of grey-scale range type set of display, the display mode of display unit can be converted to the display mode corresponding to the grey-scale range type of display according to the grey-scale range type of display by the embodiment of the present invention, and then can the GTG level of accurate display frame, improve display effect.
Further, with reference to shown in Fig. 4, judging unit 2 comprises: divide subelement 21, obtain subelement 22 and judgment sub-unit 23;
Divide subelement 21 for each two field picture of display is divided at least one image-region.
Obtain subelement 22 for obtaining the average gray-scale value of each pixel in each image-region.
Judgment sub-unit 23 is for judging whether the average gray-scale value of each pixel in each image-region comprises the grey decision-making belonging to preset gray scale interval.
Divide subelement in above-described embodiment and display is divided at least one image-region, obtain the average gray-scale value that subelement obtains each pixel in each image-region, judgment sub-unit judges whether the average gray-scale value of each pixel in each image-region comprises the grey decision-making belonging to preset gray scale interval, therefore can reduce to store memory space that grey decision-making needs and reduce to judge amount of calculation when whether grey decision-making belongs to pre-set interval.
Optionally, with reference to shown in Fig. 4, device also comprises display unit 4;
Display unit 4, before judgement show that grey decision-making comprises the grey decision-making belonging to preset gray scale interval, uses limited field display mode to show display; After judgement show that grey decision-making comprises the grey decision-making belonging to preset gray scale interval, four corner display mode is used to show display.
Optionally, the first grey-scale range is: 16-235, and the second grey-scale range is: 0-255, and preset gray scale interval is: 0-15 and 236-255.
It should be noted that, processing unit 3 in the present embodiment can for the processor set up separately, also can be integrated in some processors of display unit (such as: television set) and realize, in addition, also can be stored in the memory of display unit with the form of program code, called by some processors of display unit and perform the function of above processing unit 1.Here processor can be a central processing unit (English full name: CentralProcessingUnit, English abbreviation: CPU), or specific integrated circuit (English full name: ApplicationSpecificIntegratedCircuit, English abbreviation: ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.Receiving element 1 can be interface circuit display unit possessing receiving function, as receiver or receives information interface.In addition, judging unit 2 for the logical circuit set up separately, also can be integral to the processor and realize in a processor.
Yet another embodiment of the invention provides a kind of display unit, and this display unit comprises the display control unit that above-mentioned any embodiment provides.
Exemplary, this display unit can be television set.In addition; this television set can be digital television, also can be simulated television, can also be the television set of other type; the type of television set is not limited in the embodiment of the present invention, as long as the display control unit comprising above-mentioned enforcement and provide all is included within protection scope of the present invention.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1. a display control method, is characterized in that, is applied to display unit, and described method comprises:
When described display unit starts, the display mode of described display unit is set to limited field display mode;
Receive display, described display comprises at least one two field picture;
Judge whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval;
When described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, the display mode of described display unit is set to four corner display mode;
Wherein, the grey-scale range shown by described limited field display mode is the first grey-scale range; Grey-scale range shown by described four corner display mode is the second grey-scale range; Described preset gray scale interval belongs to described second grey-scale range and does not belong to described first grey-scale range.
2. method according to claim 1, is characterized in that, describedly judges whether described grey decision-making comprises the grey decision-making belonging to preset gray scale interval and comprise:
Each two field picture of described display is divided at least one image-region;
Obtain the average gray-scale value of each pixel in image-region described in each;
Judge whether the average gray-scale value of each pixel in image-region described in each comprises the grey decision-making belonging to preset gray scale interval.
3. method according to claim 1, is characterized in that, described method also comprises:
Before judgement show that described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, limited field display mode is used to show described display;
After judgement show that described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, four corner display mode is used to show described display.
4. method according to claim 1, is characterized in that, described first grey-scale range is: 16-235, and described second grey-scale range is: 0-255, and described preset gray scale interval is: 0-15 and 236-255.
5. a display control unit, is characterized in that, is applied to display unit; Described display control unit comprises: receiving element, judging unit and processing unit;
Described processing unit is used for, when described display unit starts, the display mode of described display unit being set to limited field display mode;
Described receiving element is for receiving display, and described display comprises at least one two field picture;
Described judging unit is for judging whether the grey decision-making of each pixel in every two field picture comprises the grey decision-making belonging to preset gray scale interval;
The display mode of described display unit also for when described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, is set to four corner display mode by described processing unit;
Wherein, the grey-scale range shown by described limited field display mode is the first grey-scale range; Grey-scale range shown by described four corner display mode is the second grey-scale range; Described preset gray scale interval belongs to described second grey-scale range and does not belong to described first grey-scale range.
6. device according to claim 5, is characterized in that, described judging unit comprises: divide subelement, obtain subelement and judgment sub-unit;
Described division subelement is used for each two field picture of described display to be divided at least one image-region;
Described acquisition subelement is for obtaining the average gray-scale value of each pixel in image-region described in each;
Described judgment sub-unit is for judging whether the average gray-scale value of each pixel in image-region described in each comprises the grey decision-making belonging to preset gray scale interval.
7. device according to claim 5, is characterized in that, described device also comprises display unit;
Described display unit is used for before judgement show that described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, uses limited field display mode to show described display; After judgement show that described grey decision-making comprises the grey decision-making belonging to preset gray scale interval, four corner display mode is used to show described display.
8. device according to claim 5, is characterized in that, described first grey-scale range is: 16-235, and described second grey-scale range is: 0-255, and described preset gray scale interval is: 0-15 and 236-255.
9. a display unit, is characterized in that, comprises the display control unit described in any one of claim 5-8.
10. display unit according to claim 9, is characterized in that, described display unit is television set.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106652955A (en) * | 2017-01-04 | 2017-05-10 | 京东方科技集团股份有限公司 | Drive circuit of display screen, display method and display device |
| 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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| CN105554587B (en) | 2018-08-31 |
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