CN101076103A - Display system and method - Google Patents
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- CN101076103A CN101076103A CN 200610080804 CN200610080804A CN101076103A CN 101076103 A CN101076103 A CN 101076103A CN 200610080804 CN200610080804 CN 200610080804 CN 200610080804 A CN200610080804 A CN 200610080804A CN 101076103 A CN101076103 A CN 101076103A
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Abstract
The invention is used for displaying a video signal in a display system. The system thereof comprises: a receiving unit for receiving said video signal; a detection unit for detecting the display specification of said video signal; a comparison unit for comparing the display specification of said signal with the specification of the image so as to decide if a shielding structure needs to be started up in said display system in order to an image corresponding to the display specification.
Description
Technical field
The present invention relates to a kind of display system and method thereof, particularly relate to a kind of can be in response to the demonstration specification of different video signals corresponding display system and display packing thereof that changes its viewing area.
Background technology
Now, various novel display system has been more, and to be designed to length-width ratio be 16: 9 wide screen picture, to represent the general effect of similar movie screen, also is the golden ratio that meets human visual most simultaneously, has the best broad visual field, and better visual effect is provided.
Main media " TV " with the amusement and recreation of general family, promptly be to form so-called wide screen television, it is 4: 3 picture that but present many video signals source still belongs to traditional length-width ratio, these video signal sources similarly are analog television signal, standard image quality (standard definition, SD) DVB-T signal or the like, since different with new-type now wide screen television length-width ratio, so this wide screen television itself tends to adopt following dual mode to solve:
(1), pan and scan (full frame) pattern: this promptly changes the original aspect ratio in 4: 3 video signal sources, so that TV screen can be filled up by video pictures entirely.Yet the method can make obvious distortion of display frame and distortion, promptly shown in Fig. 1 (a), is to adopt full screen mode to receive the shown picture view that goes out in 4: 3 video signal sources of tradition for commonly using wide screen television.
(2), letter box (mailbox) pattern: this is the original aspect ratio in 4: 3 video signal sources of reservation, and makes the both sides blank space of TV screen fill out black value.Yet the method can make the obvious black surround of twice being arranged about screen, promptly shown in first figure (b), is to utilize Letter box to receive the shown picture view that goes out in 4: 3 video signal sources of tradition for commonly using wide screen television.
And when to watch original video signal source be 4: 3 picture, no matter be to adopt the distortion or the both sides of Letter box of aforementioned full frame pattern to stay black surround, visually all can't make most users satisfied.Along with the TV of wide screen is more and more universal, and length-width ratio be 4: 3 video signal source still under the situation of main flow, run into this problem with having more and more many users.Therefore, provide a kind of this kind of solution visual uncomfortable technology, obviously most important.
This shows that above-mentioned existing display system and method thereof obviously still have inconvenience and defective, and demand urgently further being improved in product structure, display packing and use.For solving the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product and method do not have appropriate structure and method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore the display system and the method thereof that how to provide a kind of new adapted to video signal to change, real one of the current important topic that belongs to, also becoming the current industry utmost point needs improved target.
Indulge the above, because display system still has disappearance when showing the video signal of different length-width ratios now, therefore because the defective that above-mentioned known techniques exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and cooperate the utilization of studying the science, actively studied innovation, in the hope of founding display system and the method thereof that a kind of new adapted to video signal changes, can improve general existing display system and method thereof, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing display system and display packing thereof exist, and provide a kind of new display system and display packing thereof, technical problem to be solved is to make it can view and admire no black surround on wide screen television not have the analogy of distortion or the video signal of standard image quality, eliminate the effect that measures black surround and can possess correct length-width ratio so that visually have, thereby be suitable for practicality more.
Another object of the present invention is to, a kind of new display system and display packing thereof are provided, technical problem to be solved is when the television projection state, but various video signal of Auto-Sensing or use black surround detection techniques and judge whether the display frame of shaded portions or do not cover its display frame, and it is humanized that picture is adjusted, the user watches program more comfortable, thereby is suitable for practicality more.
An also purpose of the present invention is, overcome the defective that existing display system exists, and provide a kind of display system of new structure, technical problem to be solved is to make it can be in order to play a video signal (video signal) in a display system, wherein this video signal possesses one and shows that specification and this display system have a picture specification, in response to this demonstration specification that this detecting unit detected, in order to compare this picture specification and this demonstration specification, and then judge whether to start at least one masking structure in this display system, and can in this display system, demonstrate should showing the picture of specification, thereby be suitable for practicality more.
An also purpose of the present invention is, overcome the defective that existing display packing exists, and a kind of display packing of new display system is provided, and can in this display system, demonstrate showing the picture of specification, thereby be suitable for practicality more, and have the value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of display system according to the present invention's proposition, in order in a display system, to play a video signal (videosignal), wherein this video signal possesses one and shows that specification and this display system have a picture specification, and it comprises: a receiving element, in order to receive this video signal; One detecting unit is in order to detect the demonstration specification of this video signal; An and comparing unit, in response to this demonstration specification that this detecting unit detected, in order to comparing this picture specification and this demonstration specification, and then judge whether to start at least one masking structure, in this display system, to demonstrate to showing the picture of specification in this display system.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid display system, the picture specification of wherein said display system are for having 1: 9 length-width ratio.
Aforesaid display system, wherein when this detecting unit be that the demonstration specification that detects this video signal is 4: 3 a length-width ratio, then this judging unit then can start this at least one masking structure this picture with hidden parts, is 4: 3 picture so that this display system presents a length-width ratio.
Aforesaid display system, wherein said masking structure are to hide to be disposed in the side plate of this display system.
Aforesaid display system, wherein said video signal is selected from a numerical digit visual radio (digital video broadcast, the video signal form of the video signal form of video signal form DVB), a national television system committee (National Television System Committee, NTSC video signal) and video signal input (Video-in) one of them.
Aforesaid display system, the video signal form of wherein said NTSC is for having 1: 3 length-width ratio.
Aforesaid display system, the video signal form of wherein said DVB comprise a high image quality (highdefinition, demonstration specification HD) and a standard image quality (standard definition, demonstration specification SD).
Aforesaid display system, wherein said HD shows that specification is for having 1: 9 length-width ratio, or this SD shows that specification is for having 1: 3 length-width ratio.
The object of the invention to solve the technical problems also realizes by the following technical solutions.The display packing of a kind of display system that proposes according to the present invention, wherein this display system possesses a picture specification, and it may further comprise the steps: (a). and receive a video signal (video signal), wherein this video signal possesses one and shows specification; (b). detect the demonstration specification of this video signal; (c). compare with this picture specification; And (d). when confirm that this shows specification and this picture specification not simultaneously, then starts at least one masking structure, and then demonstrates showing the picture of specification in this display system.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid display packing, wherein said step (b) comprise that more a step (b1) differentiates the video signal form of this video signal.
Aforesaid display packing, wherein said video signal is selected from a numerical digit visual radio (digital video broadcast, the video signal form of the video signal form of video signal form DVB), a national television system committee (National Television System Committee, NTSC video signal) and video signal input (Video-in) one of them.
Aforesaid display packing, wherein when this video signal of differentiation is the video signal form of this DVB, whether the video signal form of then further analyzing this DVB is a high image quality (high definition, demonstration specification HD) or a standard image quality (standard definition, demonstration specification SD).
Aforesaid display packing, wherein said HD shows that specification is for having 1: 9 length-width ratio, and this SD shows that specification is for having 1: 3 length-width ratio.
Aforesaid display packing wherein when this video signal of differentiation is the video signal form of this NTSC, confirms that then this video signal is a tool 1: 3 length-width ratio.
Aforesaid display packing wherein when this video signal of differentiation is the video signal form of this Video-in, then further provides a black surround detection techniques whether can produce black surround in the picture both sides of this display system with the demonstration specification of judging this video signal.
Aforesaid display packing, wherein said detecting black surround technology are on the both sides of this display system picture to understand generation black surround with the brightness of the zone line of vertical this two side areas to confirm this video signal by the brightness of the two side areas of comparing this picture.
Aforesaid display packing, the brightness of wherein said two side areas are less than one first definite value.
Aforesaid display packing, wherein said first definite value are the total picture element numbers that equals this two side areas of five times.
Aforesaid display packing, the brightness of wherein said zone line are greater than one second definite value.
Aforesaid display packing, wherein said second definite value are the total picture element numbers that equals twentyfold this zone line.
Aforesaid display packing, wherein said video signal pattern of the input be comprise a composite video baseband signal (Composite Video Baseboard signal, CVBS), a separate type image (SeparateVideo, S-Video) signal and a color difference signal.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, the invention provides a kind of display system, in order in a display system, to play a video signal (video signal), wherein this video signal possesses one and shows that specification and this display system have a picture specification, it comprises: a receiving element, in order to receive this video signal; One detecting unit is in order to detect the demonstration specification of this video signal; An and comparing unit, in response to this demonstration specification that this detecting unit detected, in order to comparing this picture specification and this demonstration specification, and then judge whether to start at least one masking structure, in this display system, to demonstrate to showing the picture of specification in this display system.
According to above-mentioned conception, this demonstration specification is that (display aspectratio, DAR), and this displaying ratio can be 16: 9 or 4: 3 length-width ratio (aspect ratio) for a displaying ratio.
According to above-mentioned conception, the picture specification of this display system is to be tool 1: 9 length-width ratio, therefore when this detecting unit be that the demonstration specification that detects this video signal is 4: 3 a length-width ratio, then this judging unit then can start this at least one masking structure this picture with hidden parts, is 4: 3 picture so that this display system presents a length-width ratio.
According to above-mentioned conception, this masking structure is to hide to be disposed in the side plate of this display system.
According to above-mentioned conception, this video signal is selected from a numerical digit visual radio (digital videobroadcast, the video signal form of the video signal form of video signal form DVB), a national television system committee (National TelevisionSystem Committee, NTSC video signal), video signal input (Video-in).
According to above-mentioned conception, the video signal form of this NTSC is for having 1: 3 length-width ratio.
According to above-mentioned conception, the video signal form of this DVB comprises a high image quality (high definition, HD) a demonstration specification and a standard image quality (standard definition, SD) demonstration specification, wherein this HD shows that specification is for having 1: 9 length-width ratio, this SD shows that specification is for having 1: 3 length-width ratio.
In addition, for achieving the above object, the present invention also provides a kind of display packing of display system, and wherein this display system possesses a picture specification, it comprises the following steps: that (a) receives a video signal (video signal), and wherein this video signal possesses a demonstration specification; (b) detect the demonstration specification of this video signal; (c) compare with this picture specification; And (d) when confirm that this shows specification and this picture specification not simultaneously, then starts at least one masking structure, and then demonstrates showing the picture of specification in this display system.
According to above-mentioned conception, this step (b) comprises that more a step (b1) differentiates the video signal form of this video signal.
According to above-mentioned conception, this video signal is selected from a numerical digit visual radio (digital videobroadcast, DVB) video signal form, a national television system committee (National TelevisionSystem Committee, the video signal form of video signal form NTSC), video signal input (Video-in).
According to above-mentioned conception, when this video signal of differentiation is the video signal form of this DVB, whether the video signal form of then further analyzing this DVB is a high image quality (high definition, demonstration specification HD) or a standard image quality (standard definition, demonstration specification SD).
According to above-mentioned conception, when this video signal of differentiation is the video signal form of this NTSC, confirm that then this video signal is a tool 1: 3 length-width ratio.
According to above-mentioned conception, when this video signal of differentiation is the video signal form of this Video-in, then further provide a black surround detection techniques whether can in the picture both sides of this display system, produce black surround with the demonstration specification of judging this video signal.
According to above-mentioned conception, this detecting black surround technology is on the both sides of this display system picture to understand generation black surround with the brightness of the zone line of vertical this two side areas to confirm this video signal by the brightness of the two side areas of comparing this picture.
According to above-mentioned conception, the brightness of this two side areas is less than one first definite value, and this first definite value is the total picture element number that equals this two side areas of five times.
According to above-mentioned conception, the brightness of this zone line is greater than one second definite value, and this second definite value is the total picture element number that equals twentyfold this zone line.
According to above-mentioned conception, this video signal pattern of the input is to comprise a CVBS (Composite VideoBaseboard signal) signal, a S-Video (Separate Video) signal and a color difference signal.
By technique scheme, display system and method thereof that the present invention can adapt to the video signal change have following advantage at least:
1, the present invention can view and admire no black surround on wide screen television does not have the analogy of distortion or the video signal of standard image quality, can make visually to have to eliminate the effect that measures black surround, and can possess correct length-width ratio, is very suitable for practicality.
2, the present invention is when the television projection state, can the various video signal of Auto-Sensing or use black surround detection techniques and judge whether the display frame of shaded portions or do not cover its display frame, and it is humanized that picture is adjusted, make the user watch program more comfortable, be suitable for practicality more.
3, the present invention can be in order to play a video signal (video signal) in a display system, wherein this video signal possesses one and shows that specification and this display system have a picture specification, in response to this demonstration specification that this detecting unit detected, in order to compare this picture specification and this demonstration specification, and then judge whether to start at least one masking structure in this display system, and can in this display system, demonstrate should showing the picture of specification, thereby be suitable for practicality more.
4, the display packing of display system of the present invention can demonstrate in this display system should showing the picture of specification, thereby be suitable for practicality more, and have the value on the industry.
5, display system of the present invention and method and technology thereof are simple, but high convenience is provided, and can allow the user produce the euphorosia of height, and can effectively promote the progress of industry, therefore the technology of the present invention is simple, and exercisable field is very extensive, and has the using value of industry really.
In sum, the invention relates to a kind of display system and method thereof that video signal changes that adapt to, in order in a display system, to play a video signal, wherein possess one and show that specification and this display system have a picture specification, this display system comprises: a receiving element, in order to receive this video signal; One detecting unit is in order to detect the demonstration specification of this video signal; An and comparing unit, in response to this demonstration specification that this detecting unit detected, in order to comparing this picture specification and this demonstration specification, and then judge whether to start at least one masking structure, in this display system, to demonstrate to showing the picture of specification in this display system.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure, method or function, be a significant progress in technology, and produced handy and practical effect, and more existing display system and display packing thereof have the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 (a) receives the shown picture view that goes out in 4: 3 video signal sources of tradition for the existing wide screen television of commonly using adopts full screen mode.
Fig. 1 (b) receives the shown picture view that goes out in 4: 3 video signal sources of tradition for the existing wide screen television of commonly using utilizes Letter box.
Fig. 2 is the system architecture schematic diagram for a kind of display system of preferred embodiment of the present invention.
Fig. 3 (a) is the vertical view when using display system of the present invention and do not open masking structure.
Fig. 3 (b) opens the vertical view of masking structure with the hidden parts picture for using display system of the present invention.
Fig. 4 is the implementation method flow chart for the display packing of a kind of display system of preferred embodiment of the present invention.
Fig. 5 is the implementing procedure figure for detecting step among Fig. 4.
Fig. 6 is for using the wide screen picture view of black surround detection techniques of the present invention.
10: display system 11: receiving element
12: detecting unit 13: comparing unit
14: masking structure 20: length-width ratio is 16: 9 a wide screen picture
21: display frame 22: decorative side-board
23: masking structure 401: the step of receiving video signal
402: detecting shows the step 403 of specification: with the step of picture specification comparison
404: the step 405 of end: the step that starts masking structure
501: the step 502 of differentiating the video signal form: the step of confirming as the DVB form
503: the step 504 of confirming as the NTSC form: the step of confirming as the Video-in form
505: the step of analyzing the demonstration specification that whether belongs to SD or HD
506: the step 507 of confirming 16: 9 length-width ratio of tool: the step of confirming 4: 3 length-width ratio of tool
508: detect and whether have a step 60 of both sides black surround: length-width ratio is 16: 9 a wide screen picture
61: side area 62: zone line
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, display system and its embodiment of method, structure, method, step, feature and effect that the adapted to video signal that foundation the present invention is proposed changes, describe in detail as after.
Hereinafter will specify the present invention, being familiar with present technique person must understanding explanation hereinafter only be as illustration usefulness, and is not limited to the present invention.
Below the display system and the method thereof that will change at the adapted to video signal of preferred embodiment of the present invention is described explanation, but actual framework and the method that is adopted must not meet the framework and the method for description fully, have the knack of those skilled in the art and should under the situation that does not break away from practicalness of the present invention and scope, make many variations and modification.
Seeing also shown in Figure 2ly, is the disclosed a kind of display system that video signal changes and concise and to the point configuration diagram of method thereof of adapting to.Display system of the present invention, include a receiving element 11, one detecting unit 12 and a comparing unit 13, applicable in a display system 10, playing a video signal, and this video signal possesses one and shows that specification and this display system 10 have a picture specification, and this receiving element 11 is in order to receive this video signal, this detecting unit 12 can be in order to detect the demonstration specification of this video signal, and 13 of this comparing units this demonstration specification that can be detected in response to this detecting unit 12, in order to compare this picture specification and this demonstration specification, and then judge whether to start at least one masking structure 14 in this display system 10, in this display system 10, to demonstrate to showing the picture of specification.
Wherein, this demonstration specification is to be a displaying ratio (display aspect ratio, DAR), and this displaying ratio can have 16: 9 or 4: 3 length-width ratio (aspect ratio), and the picture specification of this display system can also be to have 16: 9 or 4: 3 length-width ratio.
For concreteness with its details of further discussion, seeing also shown in Fig. 3 (a), is the vertical view when not opening masking structure for the display system of using display system of the present invention.If this display system is to be 16: 9 wide screen television 20 for a length-width ratio, then to have length-width ratio be 16: 9 display frame 21 and the side plate 22 that is configured in these display frame 21 both sides to this wide screen television 20, and display system of the present invention has more the inboard that two masking structures 23 can be hidden the side plate 22 that is configured in both sides respectively.
If say according to aforesaid previous prior art, this wide screen television 20 can produce black surround (seeing also shown in Fig. 1 (b)) in these display frame 21 left and right sides when the traditional length-width ratio of broadcast is 4: 3 video signal, if detecting unit 12 and comparing unit 13 by display system of the present invention, the demonstration specification that then can effectively analyze the video signal that is received whether with the picture specification identical (promptly whether being equal to 16: 9 length-width ratio) of this wide screen television 20, have identical length-width ratio if confirm the demonstration specification of the video signal that received by this comparing unit 13 with the picture specification of this wide screen television, then do not carry out any action.
And if the video signal that is received by these comparing unit 13 affirmations has different length-width ratios with this wide screen television, then can start this masking structure 23 by this comparing unit 13, moving inward hiding the part picture of this display frame 21, is the display frame 21 that 4: 3 display frame 21 rather than length-width ratio originally are 16: 9 so that this wide screen television 20 presents a length-width ratio.
In addition, in order to allow this masking structure 23 shift out and can obviously not protrude in this wide screen television 20, see also shown in Fig. 3 (a), it is one trapezoidal that the present invention is designed to this side plate 22 and this masking structure 23 in addition separately, wherein two trapezoidal opposite ends have more an acute angle, so when this masking structure 23 need be shifted out this display frame 21 of coverage behind this side plate 22, this partly please open up shown in moon Fig. 3 (b), this masking structure 23 just can followed the smooth slippage of acute rake angle of this side plate 22, this side plate 22 just in time can be fitted mutually with two opposite end acute angles of this masking structure 23 at last, and form a complete rectangular shape at last, so this masking structure 23 both smoothly slippage go out and also can not protrude in outside this side plate 22, therefore structural design of the present invention can allow this wide screen television 20 change length-width ratios of these display frames 20 immediately, lofty outstanding structure also can not occur.
Moreover, because the some of this side plate 22 housing equipment (disclosing among the figure) that originally to be exactly this wide screen television 20 existing, as long as with side plate 22 structural designs of both sides is trapezoidal, corresponding trapezoidal masking structure 23 is gone up in inner configuration again, so can't increase too many manufacturing cost and time on making.
In addition, aforesaid embodiment all is to be that to play length-width ratio be that 4: 3 video signal is discussed for 16: 9 playback equipment desire at length-width ratio, yet, it is that to play length-width ratio be 16: 9 video signal for 4: 3 playback equipment desire that the present invention can also use in length-width ratio, the equal symbolic animal of the birth year of its structural principle together, but this masking structure then should be arranged within the side plate of both sides up and down of display system, but not is within the side plate of both sides.
Please consulting shown in Figure 4ly again, is can adapt to the display system that video signal changes and the implementation method flow chart of method thereof for the present invention.The display packing of display system of the present invention, be earlier by a display system receiving video signal 401, the demonstration specification 402 of this video signal that detecting is subsequently received, this demonstration specification compares 403 with the picture specification of this display system again, if this picture specification shows the identical words of specification with this, then need not carry out any processing, finish 404 without leave, if yet this picture specification shows the different words of specification with this, then can start masking structure and hide the part picture of covering this display system, and then allow the picture of this display system demonstrate just can be to demonstration specification 405 that should video signal, and can not allow picture produce the both sides black surround or the phenomenon of distortion.
Seeing also shown in Figure 5ly, is to be the included concrete implementation step flow chart of the detecting step 402 of Fig. 4.Because general video signal is to be selected from a numerical digit visual radio (digital videobroadcast mostly, DVB) video signal form, a national television system committee (National TelevisionSystem Committee, the video signal form of video signal form NTSC) and video signal input (Video-in) one of them, so when differentiating the video signal form 501 of video signal, just will have following three kinds of possible situations:
(1), when confirming that this video signal is when belonging to the video signal form 502 of this DVB, whether the video signal form of then further analyzing this DVB is to belong to a high image quality (high definition, HD) a demonstration specification or a standard image quality (standard definition, SD) demonstration specification 505, because the demonstration specification of this HD is to have 1: 9 length-width ratio and this SD show that specification is for having 1: 3 length-width ratio, if so confirm this video signal is the demonstration specification of HD, then represent the length-width ratio 506 that this video signal had 16: 9, otherwise, if confirming this video signal is the demonstration specification of SD, then represent the length-width ratio 507 that this video signal had 4: 3.
(2), when confirming that this video signal is when belonging to the video signal form 503 of this NTSC because the video signal form of this NTSC is the anaiog signal that belongs to traditional, be tool 1 so can directly confirm this video signal: 3 length-width ratio 507.
(3), be when belonging to the video signal form 504 of this Video-in when differentiating this video signal, because the video signal form of this Video-in can be the various signal of CVBS (Composite Video Baseboard signal) signal, a S-Video (Separate Video) signal or a color difference signal or the like, only, these input signals respectively have different possible information source, and whether it had 16: 9 or 4: 3 length-width ratio then is difficult to directly be judged by input signal itself.Therefore, the present invention also provides a kind of black surround detection techniques in addition, is used for whether can producing black surround in the picture both sides in this display system at the video signal that directly removes to judge the video signal form that belongs to this Video-in on the picture of display system.
See also shown in Figure 6ly, be to use the wide screen picture view of black surround detection techniques of the present invention.It is 16: 9 wide screen picture 60 that this embodiment is to use a length-width ratio equally, this detection techniques comprises two establishment conditions, if two conditions are all set up, can judge that then the video signal that is received is the length-width ratio (promptly can produce vertical black surround in the vertical two side areas 61 about this wide screen picture 60) that had 4: 3.Now two establishment conditions are described in detail as follows:
(A), condition 1:
If this video signal has 4: 3 length-width ratio, then can in the zone, the left and right sides 61 of this wide screen picture 60, have vertical black surround and produce, and this black surround wide is that to have accounted for length-width ratio be 16: 9 wide screen picture 60 wide
Also or the black surround that can be called two side areas 61 respectively accounts for 12.5% hem width.Therefore, the present invention can the right and left respectively set its wide for this wide screen picture 60 12.5% (x in Fig. 6 is set at 12.5, yet can be set at littler numerical value) rectangular area (being aforesaid two side areas 61), if the brightness value sum in this zone 61 (promptly is to be all black in this two side areas 61 less than a default constant, bright spots such as a little noise are only arranged), can claim to satisfy condition 1, promptly be
Wherein, B represents brightness, and this constant C 1 can be set at total picture element number of this two side areas 61 of five times, promptly is " the picture element number in 5 * two side areas ".
(B), condition 2:
If the present invention sets the y=43.75 among Fig. 6, the horizontal rectangular area (hereinafter referred to as zone line 62) of this two side areas 61 central authorities of being clamped then, its vertical width is the vertical wide of this wide screen picture 60 just
(100-43.75×2)％＝12.5％
If the video signal input is arranged really, then this zone line 62 should have suitable brightness value in theory, therefore the present invention's design adds up the brightness value in this zone line 62, should surpass a default constant C 2, therefore, if the brightness value sum in the zone 62 is greater than a constant (that is, the interior most of picture elements in district have suitable numerical value but not be complete black) hereinto, we claim to satisfy condition 2, promptly are
Wherein, B represents brightness, and this constant C 2 can be set at total picture element number of twentyfold this zone line 62, i.e. " the picture element number in 20 * zone line ".
Therefore, discuss according to the front, if above-mentioned two conditions are all set up, then we can judge that the video signal that is received is the length-width ratio that had 4: 3, therefore has the both sides black surround, if and only eligible 1 and ineligible 2 o'clock, then can inference not receive video signal or may play dark scene, must detect again after a while.In addition, if ineligible 1 but eligible 2 o'clock, then the video signal that received of expression is the length-width ratio that had 16: 9.
More than explanation is to be that 16: 9 wide screen television is described explanation in detail at length-width ratio, yet black surround detection techniques of the present invention can also use on length-width ratio is traditional analog television of 4: 3, its difference person is to be the transverse area of both sides up and down, the rectangular area longitudinally that zone line is then clamped for the aforementioned transverse area of both sides up and down for its two side areas only.
Therefore, judge the demonstration length-width ratio of the video signal of being imported according to various discrimination technology provided by the present invention, this demonstration length-width ratio is compared with the aspect ratio of the picture of display system reality subsequently, just can know the aspect ratio of the picture that whether needs to change display system easily, promptly be to judge whether to need to start masking structure.
So in practical application, the present invention can be useful in the various display systems with different length-width ratios, as long as by multiple judgment mechanism provided by the present invention, whether the demonstration specification that can distinguish various different video signals easily conforms to the existing picture specification of this display system, and under this shows that specification is different with this picture specification, using provides masking structure to fill up the black surround phenomenon that length-width ratio is not produced simultaneously, makes the picture of this display system look like the Aspect Ratio with this demonstration specification.
In addition, the present invention further can also be designed to allow the user initiatively remove to control this masking structure, so at Auto-Sensing of the present invention to judge whether to cover or when not covering the picture of display system, the user can also initiatively go to control the keying of this masking structure, to increase elasticity and the convenience in the actual use.
Therefore, the present invention can allow the user when watching TV, just various video signal of Auto-Sensing or use black surround detection techniques and judge whether the display frame of shaded portions or do not cover its display frame voluntarily, so that television image is more coordinated, the user watches program more comfortable.
Via as can be known above, the present invention can provide a kind of display system and method thereof that video signal changes that adapt to really, it has broken through the solid old idea that shows the existing length-width ratio of display system of only can condescending to take this post in existing video signal, but display system is carried out simple software and hardware control, allow the display system masking structure of only need arranging in pairs or groups, determine whether starting the length-width ratio that masking structure changes display system by detecting and judgment mechanism to the input video signal, this setting up procedure can also be decided by the user, therefore the present invention need not increase many complicated hardware devices, its implementation cost is very cheap, display system of the present invention and method thereof, its technology is simple, but but provide high convenience, and can allow the user produce the euphorosia of height, and can effectively promote the progress of industry, so the technology of the present invention is simple, can use the field extensive, and have the using value of industry really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (21)
1, a kind of display system, in order to play a video signal (videosignal) in a display system, wherein this video signal possesses one and shows that specification and this display system have a picture specification, is characterized in that it comprises:
One receiving element is in order to receive this video signal;
One detecting unit is in order to detect the demonstration specification of this video signal; And
One comparing unit, in response to this demonstration specification that this detecting unit detected, in order to comparing this picture specification and this demonstration specification, and then judge whether to start at least one masking structure, in this display system, to demonstrate to showing the picture of specification in this display system.
2, display system according to claim 1, the picture specification that it is characterized in that wherein said display system are for having 1: 9 length-width ratio.
3, the display system of stating according to claim 2, it is characterized in that wherein when this detecting unit be that the demonstration specification that detects this video signal is 4: 3 a length-width ratio, then this judging unit then can start this at least one masking structure this picture with hidden parts, is 4: 3 picture so that this display system presents a length-width ratio.
4, the display system of stating according to claim 3 is characterized in that wherein said masking structure is to hide to be disposed in the side plate of this display system.
5, display system according to claim 1, it is characterized in that wherein said video signal is selected from a numerical digit visual radio (digital video broadcast, the video signal form of the video signal form of video signal form DVB), a national television system committee (National Television System Committee, NTSC video signal) and video signal input (Video-in) one of them.
6, the display system of stating according to claim 5, the video signal form that it is characterized in that wherein said NTSC is for having 1: 3 length-width ratio.
7, the display system of stating according to claim 5 is characterized in that the video signal form of wherein said DVB comprises a high image quality (high definition, demonstration specification HD) and a standard image quality (standard definition, demonstration specification SD).
8, the display system of stating according to claim 7 is characterized in that wherein said HD shows that specification is for having 1: 9 length-width ratio, or this SD shows that specification is for having 1: 3 length-width ratio.
9, a kind of display packing of display system, wherein this display system possesses a picture specification, it is characterized in that it may further comprise the steps:
(a). receive a video signal (video signal), wherein this video signal possesses a demonstration specification;
(b). detect the demonstration specification of this video signal;
(c). compare with this picture specification; And
(d). when confirm that this shows specification and this picture specification not simultaneously, then starts at least one masking structure, and then demonstrates showing the picture of specification in this display system.
10, display packing according to claim 9 is characterized in that wherein said step (b) comprises that more a step (b1) differentiates the video signal form of this video signal.
11, according to the display packing of claim 10, it is characterized in that wherein said video signal is selected from a numerical digit visual radio (digital video broadcast, the video signal form of the video signal form of video signal form DVB), a national television system committee (National Television System Committee, NTSC video signal) and video signal input (Video-in) one of them.
12, display packing according to claim 9, it is characterized in that wherein when this video signal of differentiation is the video signal form of this DVB, whether the video signal form of then further analyzing this DVB is a high image quality (high definition, HD) a demonstration specification or a standard image quality (standarddefinition, demonstration specification SD).
13, display packing according to claim 12 is characterized in that wherein said HD shows that specification is for having 1: 9 length-width ratio, and this SD shows that specification is for having 1: 3 length-width ratio.
14, display packing according to claim 11 is characterized in that wherein confirming that then this video signal is a tool 1: 3 length-width ratio when differentiating this video signal for the video signal form of this NTSC.
15, display packing according to claim 11, it is characterized in that wherein when differentiating this video signal, then further providing a black surround detection techniques whether can in the picture both sides of this display system, produce black surround with the demonstration specification of judging this video signal for the video signal form of this Video-in.
16, display packing according to claim 15 is characterized in that wherein said detecting black surround technology is that the brightness of the two side areas by comparing this picture can produce black surround to confirm this video signal with the brightness of the zone line of vertical this two side areas on the picture of the both sides of this display system.
17, display packing according to claim 16, the brightness that it is characterized in that wherein said two side areas are less than one first definite value.
18, display packing according to claim 17 is characterized in that wherein said first definite value is the total picture element number that equals this two side areas of five times.
19, display packing according to claim 16, the brightness that it is characterized in that wherein said zone line are greater than one second definite value.
20, display packing according to claim 19 is characterized in that wherein said second definite value is the total picture element number that equals twentyfold this zone line.
21, display packing according to claim 11, it is characterized in that wherein said video signal pattern of the input is to comprise a composite video baseband signal (Composite Video Baseboard signal, CVBS), a separate type image (Separate Video, S-Video) signal and a color difference signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100808042A CN100512416C (en) | 2006-05-16 | 2006-05-16 | Display system and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100808042A CN100512416C (en) | 2006-05-16 | 2006-05-16 | Display system and method thereof |
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| CN101076103A true CN101076103A (en) | 2007-11-21 |
| CN100512416C CN100512416C (en) | 2009-07-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866572A (en) * | 2021-01-11 | 2021-05-28 | 浙江大华技术股份有限公司 | Method and device for correcting black edge of picture, electronic device and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112866572A (en) * | 2021-01-11 | 2021-05-28 | 浙江大华技术股份有限公司 | Method and device for correcting black edge of picture, electronic device and storage medium |
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| CN100512416C (en) | 2009-07-08 |
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