CN101035298A - Gray coefficient adjusting device for automatically adjusting the picture brightness and the gray coefficient adjusting system and its method using the same - Google Patents
Gray coefficient adjusting device for automatically adjusting the picture brightness and the gray coefficient adjusting system and its method using the same Download PDFInfo
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- CN101035298A CN101035298A CN 200610056922 CN200610056922A CN101035298A CN 101035298 A CN101035298 A CN 101035298A CN 200610056922 CN200610056922 CN 200610056922 CN 200610056922 A CN200610056922 A CN 200610056922A CN 101035298 A CN101035298 A CN 101035298A
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Abstract
The invention relates to an adjusting device of correction of the TV receiver screen brightness and color coordinates gray coefficient adjusting device, with the following structure: image analysis with the department of the television receiver screen output image of the state, the detection screen brightness and color coordinates of the detected value of brightness and color coordinates analysis ; the department has storage, used to store benchmarks and adopted by the department of image analysis and the analysis of brightness and color coordinate value; there control division, department of control of image analysis Image detection and analysis, detection and analysis by the brightness and color coordinate value of the deposit to the storage, image analysis through comparison detection and analysis by the department of brightness and color coordinates with the base value of brightness and color coordinate value, and then compared the results according to correction automatically TV receivers and set the brightness and color coordinate value; a junction to the TV receiver by controlling the transmission of the reception of brightness and color coordinate value.
Description
Technical field
The present invention relates to be used for adjusting the gray scale Adjustment System and the method thereof of television receiver picture; Relate in particular in the process of producing television receiver and can automatically adjust the device of gamma, and gamma Adjustment System and the method thereof of utilizing it.
Background technology
Along with the develop rapidly of technology such as electricity, electronics, computer and communication, comprise the multimedia field that image or sound equipment etc. synthesize the information of various forms, also obtained huge development.In the process that information communication develops rapidly, be called as the epoch now of digital revolution, the storage of information and the form of existence just carry out the transition to digitlization from analog form.Image need compare the information of volume; Along with being used for the development of dynamic image compression standard MPEG technology of compressed digital video information, the size of DID is diminishing gradually; Progressively in all fields, for example in the every field such as computer, broadcasting, household electrical appliance, communication, be suitable for digital video and audio frequency widely at present; And the digital device of a collection of suitable digital technology appearred.
Wherein, broadcasting and TV, conduct information spreading medium easily and effectively has important status in daily life.By means of digital technology, utilize the MPEG technology to go to transmit after compressed video data and the voice data, more stably provide a large amount of information therefore sooner; Along with coming on stage of Digital Television, in the family also will be with more broadcasting, image quality more clearly, and more lively sound equipment is appreciated TV programme.
And, to compare with traditional analog form, capacity can increase to 4～8 times, and a lot of fields can be provided, as sports tournament, film, home shopping, the service of music or the like.Except the broadcasting of space wave, can also provide wired broadcasting, video on demand increasing images serve such as (VOD); Look the hearer and select audiovisual material according to the hobby of oneself; Along with the expansion of the range of choice of looking the hearer, and provide multiple broadcasting, the user can select own required broadcast program to carry out audiovisual when watching TV programme from a lot of channels.
Like this, along with a lot of broadcast programs that a plurality of channels are provided,, in television set, also constantly increasing various functions with adaption demand in order to satisfy the various hobbies and the convenience of looking the hearer.Usually under the situation of Digital Television or set-top box output device, some information is provided or changes the setting of television set and during function to the user, that is to say that changing input sets, display setting, during audio settings etc., will adopt screen display (OSD) means that on video screen, show to inform.
In addition, the television image major part substitutes picture tube (CRT) by liquid crystal panel (LCD) recently; To having the television receiver of liquid crystal display picture, in order to make the brightness linearisation of picture, remove gammate in process of production; For this reason, in conventional art, the grayscale mode of 16 contrasts is set; Wherein proofread and correct low contrast in order to go, the operating personnel is gammate with the naked eye.For this reason, when utilizing conventional method to come gammate, required time of flow chart is long, and production efficiency is low, and along with operating personnel's operating condition, low gamma corrected value is also different, thereby makes the qualification rate of product low.
Summary of the invention
The present invention develops in order to solve the above problems.The objective of the invention is in the production process of television receiver the gamma Adjustment System and the method that a kind of device of gammate automatically are provided and utilize it.
Another object of the present invention is to provide a kind of whether normal gray coefficient adjusting device of television receiver picture color coordinate of automatically going to analyze.
Another purpose of the present invention be to provide a kind of in the production process of television receiver automatically gammate adjust picture brightness, and then the device that makes production process obtain simplifying, and gamma Adjustment System and the method for utilizing it.
In order to achieve the above object, be used for the gray coefficient adjusting device of picture brightness and color coordinate of correcting TV receiver in the present invention, has the following structures feature, that is: be provided with graphical analysis portion, it is under the state of television receiver screen output image, remove to detect the brightness and the color coordinate of picture, then detected brightness and color coordinate value are analyzed; Be provided with storage part, be used for storing the brightness and the color coordinate value that are detected and analyze by graphical analysis portion, also be used for Memory Reference brightness and color coordinate value; Be provided with control part, it goes image detection and the analytic process of control chart as analysis portion, brightness that is detected and analyze by graphical analysis portion and color coordinate value are deposited into storage part, go relatively the brightness and the color coordinate value and Benchmark brightness and the color coordinate value in storage part, deposited that are detected and analyze by graphical analysis portion, automatically proofread and correct and set the brightness and the color coordinate value of television receiver then according to result relatively; Be provided with connecting portion, be used for transmitting brightness and the color coordinate value that receives by control part to television receiver.
Gamma Adjustment System of the present invention comprises television receiver and gray coefficient adjusting device, and wherein television receiver will receive and export composite picture signal, and brightness according to the rules and color coordinate value, to the screen output image signal; And gray coefficient adjusting device, then remove to detect the brightness and the color coordinate of television receiver and picture, remove the brightness and the color coordinate of analyzing and testing, and the brightness and the color coordinate value of going temporary detection and analyzing, go the relatively more temporary brightness and the Benchmark brightness and the color coordinate value of color coordinate value and regulation, go then to judge whether temporary brightness is identical with the Benchmark brightness and the color coordinate value of regulation with the color coordinate value, the brightness and the color coordinate value of removing the calibration setup television receiver according to the result who judges.
In the present invention, utilize gray coefficient adjusting device to come the method for the picture brightness and the color coordinate of correcting TV receiver, has following step, that is: be provided with picture brightness and the color coordinate that detects television receiver by gray coefficient adjusting device, remove the brightness and the color coordinate of analyzing and testing, the temporary then brightness that detects and analyze and the step of color coordinate value; Be provided with by gray coefficient adjusting device and go the relatively temporary brightness and the Benchmark brightness and the color coordinate value of color coordinate value and regulation, go to judge the step that the Benchmark brightness of temporary brightness and color coordinate value and regulation and color coordinate value be whether identical then; Be provided with according to the result who judges and come the brightness of correcting TV receiver setting and the step of color coordinate value by gray coefficient adjusting device.
Advantageous effect of the present invention is as follows:
As mentioned above, the present invention is in the production process of television receiver, utilize gray coefficient adjusting device to come gammate automatically, therefore made things convenient for the operating personnel, can also shorten the required time of production process, compare with operating personnel's manual correction mode in addition, can be more correct proofread and correct, thereby can improve the qualification rate of product greatly.
Description of drawings:
Fig. 1 is in example of the present invention, the ideograph of gamma Adjustment System.
Fig. 2 is the structured flowchart of the present invention's television receiver that can obtain being suitable for.
Fig. 3 is in example of the present invention, the structured flowchart of gray coefficient adjusting device.
Fig. 4 is in example of the present invention, the workflow diagram of television receiver grey coefficient regulating method.
The symbol description of accompanying drawing major part:
100: television receiver 101: tuner
102: picture 103: loud speaker
104: analog-digital converter 105: Video processing portion
106: audio treatment part 107,203: control part
108: image efferent 109: amplifier
110,204: connecting portion 200: gray coefficient adjusting device
201: graphical analysis portion 202: storage part
Embodiment
Below, describe embodiments of the invention in detail with reference to accompanying drawing.
Fig. 1 is in example of the present invention, the ideograph of gamma Adjustment System.As seen from the figure, it comprises and receiving and television receiver 100 that composite picture signal that output TV station plays is used; The gray coefficient adjusting device 200 of the gamma of correcting TV receiver 100 automatically.
That is to say, when television receiver 100 is exported the resurrection picture signal on picture, will be according to coming output image in brightness that configures in advance by gray coefficient adjusting device 200 and color coordinate.
Gray coefficient adjusting device 200 in process of production, by under the situation of screen output image, detects the brightness and the color coordinate of picture specific part at television receiver 100, just removes to detect RGB, goes to store tested brightness and color coordinate value then; Then, go the Benchmark brightness and the color coordinate value of more tested brightness and color coordinate value and regulation; At last judge that according to result relatively normally whether the brightness of picture and color coordinate.Here, if the result who judges is normal, gray coefficient adjusting device 200 will remove to keep the brightness and the color coordinate of current television receiver 100 so.
But if the result who judges, picture brightness and color coordinate are undesired, gray coefficient adjusting device 200 so, with Benchmark brightness and color coordinate value according to the rules, and the difference between detected brightness and the color coordinate value, come the brightness and the color coordinate of correcting TV receiver 100.
Figure 2 illustrates this television receiver structured flowchart that comes gammate by gray coefficient adjusting device of the present invention.
As shown in Figure 2, television receiver 100 is made of following part, is provided with tuner 101 that is:, and it will receive the composite picture signal that TV station broadcasts, and go to export analog picture signal and acoustic signal then; Be provided with picture 102, be used for display image signals; Be provided with loud speaker 103, be used for exporting acoustic signal; Be provided with analog-digital converter 104, be used for the analog picture signal from tuner 101 outputs is transformed into data image signal; Be provided with Video processing portion 105, it will be processed into a signal aspect that is suitable for picture 102 to the data image signal from analog-digital converter 104 outputs; Be provided with audio treatment part 106, it will be processed into a signal that is suitable for loud speaker 103 to the acoustic signal from tuner 101 outputs; Be provided with control part 107, it will control the reception and the output of composite picture signal, and go to control from the picture signal of Video processing portion 105 outputs and from the synchronization between the audio signal of audio treatment part 106 outputs; Be provided with image efferent 108, it will output to picture 102 to the picture signal from 105 outputs of Video processing portion; Be provided with amplifier 109, it will output to loud speaker 103 after the audio signal of audio treatment part 106 outputs is amplified; Be provided with connecting portion 110, it will be sent to Video processing portion 105 to the gamma corrected value that receives from gray coefficient adjusting device 200.
Tuner 101 will go to receive the composite picture signal by a plurality of channel transmission, and from the channel that receives, output is by the composite picture signal of the channel of control part 107 appointments.At this moment, tuner 101 will output to the analog picture signal that is included in the composite picture signal analog-digital converter 104, and acoustic signal is outputed to audio treatment part 106.
Video processing portion 105 will be transformed into a signal that is suitable for picture 102 to the data image signal that obtains conversion by analog-digital converter 104 according to the control requirement of control part 107, output to image efferent 108 then.At this moment, Video processing portion 105 will adjust picture carrier and the color coordinate value that will export according to brightness that configures in advance and color coordinate value on picture 102.This brightness and color coordinate value are automatically to obtain setting by gray coefficient adjusting device 200.
Audio treatment part 106 will will be transformed into an electric acoustic signal that is suitable for loud speaker 103 to the acoustic signal from tuner 101 outputs according to the control requirement of control part 107, output to amplifier 109 then.
Connecting portion 110 receives the brightness/color coordinate data that transmit from gray coefficient adjusting device 200 by wired with going, and is sent to Video processing portion 105 then.This connecting portion 110 can be realized with wired or wireless mode, but for enforcement of the present invention, preferably adopts wired mode.
For brightness and the color coordinate value the television receiver 100 with this structure set in Video processing portion 105 from dynamic(al) correction, gray coefficient adjusting device of the present invention has following structure, is described below.
Fig. 3 is in example of the present invention, the structured flowchart of gray coefficient adjusting device.
With reference to Fig. 3 as can be known, gray coefficient adjusting device 200 of the present invention, constitute by following part, that is: be provided with graphical analysis portion 201, it is under the state of picture 102 output images of television receiver, remove to detect the brightness and the color coordinate of picture 102, then detected brightness and color coordinate value are analyzed; Be provided with storage part 202, be used for storing the brightness and the color coordinate value that are detected and analyze by graphical analysis portion 201, also be used for Memory Reference brightness and color coordinate value; Be provided with control part 203, it goes image detection and the analytic process of control chart as analysis portion 201, brightness that is detected and analyze by graphical analysis portion 201 and color coordinate value are deposited into storage part 202, go relatively the brightness and the color coordinate value and Benchmark brightness and the color coordinate value in storage part 202, deposited that are detected and analyze by graphical analysis portion 201, automatically proofread and correct and set the brightness and the color coordinate value of television receiver 100 then according to result relatively; Be provided with connecting portion 204, be used for transmitting brightness and the color coordinate value that receives by control part to television receiver 100.
The brightness and the color coordinate of picture 102 privileged sites will detect according to the control requirement of control part 203 in graphical analysis portion 201, remove to analyze detected brightness and color coordinate, then being sent to control part 203 with brightness and the color coordinate value analyzed after testing.
If result relatively, judge detected brightness and color coordinate value by graphical analysis portion 201, identical with the color coordinate value with the Benchmark brightness in leaving storage part 202 in advance in, control part 203 will go to keep brightness and the color coordinate value in the Video processing portion 105 so.
If result relatively, judge detected brightness and color coordinate value by graphical analysis portion 201, different with the Benchmark brightness in leaving storage part 202 in advance in the color coordinate value, control part 203 will be proofreaied and correct the brightness and the color coordinate value that are set in the Video processing portion 105 according to the brightness relatively and the error amount of color coordinate so.
Connecting portion 110 receives the brightness/color coordinate data that transmit by from control part 203 with going, and is sent to the Video processing portion 105 of television receiver 100 then.This connection can realize with wired or wireless mode, but for enforcement of the present invention, preferably adopts wired mode.
To in having the gamma Adjustment System of said structure, the method for gammate is elaborated automatically below.
Fig. 4 is in example of the present invention, the workflow diagram of television receiver grey coefficient regulating method.
With reference to Fig. 4 as can be known, at first, on the picture of television receiver 100, just under the situation of output image, if the operating personnel indicates the correction (S401) of gamma, gray coefficient adjusting device 200 will remove to detect the brightness and the color coordinate of television receiver 100 picture privileged sites so, remove the brightness and the color coordinate (S402) of analyzing and testing, temporary then brightness and the color coordinate value (S403) that detects and analyze.
Like this, if brightness and color coordinate obtain detecting, just remove relatively more temporary brightness and the Benchmark brightness and the color coordinate value of color coordinate value and regulation, i.e. rgb value (S404) by gray coefficient adjusting device 200 so.Go to judge the Benchmark brightness of temporary brightness and color coordinate value and regulation and color coordinate value whether identical (S405) then; If the result who judges is identical, gray coefficient adjusting device 200 will go to keep the brightness and the color coordinate value (S406) of television receiver 100 so.
If the brightness that the result who judges keeps in and the Benchmark brightness and the color coordinate value of color coordinate value and regulation are inequality, so by gray coefficient adjusting device 200, to proofread and correct brightness and the color coordinate value (S407) in television receiver 100, set according to the brightness relatively and the error amount of color coordinate.
In trimming process (S406), if temporary color coordinate R value is greater than the R value of the reference color coordinate of regulation, and color coordinate G value is identical with the B value, gray coefficient adjusting device 200 will reduce the color coordinate R value of television receiver 100 so, make its reference color coordinate R value identical, so as to proofreading and correct with regulation.
Equally, if temporary color coordinate G value is less than the G value of the reference color coordinate of regulation, and color coordinate R value is identical with the B value, gray coefficient adjusting device 200 will promote the color coordinate G value of television receiver 100 so, make its reference color coordinate G value identical, so as to proofreading and correct with regulation.
The process of this gammate will be carried out repeatedly, when the Benchmark brightness of the brightness that obtains setting in television receiver 100 and color coordinate value and regulation is identical with the color coordinate value for extremely.
Technological thought of the present invention specifies according to example; But, here to remind, this example just is used for describing, rather than be used for limiting.In addition, if the common expert in the technology of the present invention field it will be appreciated that so in technological thought scope of the present invention, can enumerate multiple example.
Claims (10)
1, be used for regulating automatically the gray coefficient adjusting device of picture brightness, it is characterized in that comprising following part:
Be provided with graphical analysis portion, it removes to detect the brightness and the color coordinate of picture under the state of television receiver screen output image, then detected brightness and color coordinate value is analyzed;
Be provided with storage part, be used for storing the brightness and the color coordinate value that are detected and analyze by graphical analysis portion, also be used for Memory Reference brightness and color coordinate value;
Be provided with control part, it goes image detection and the analytic process of control chart as analysis portion, brightness that is detected and analyze by graphical analysis portion and color coordinate value are deposited into storage part, go relatively the brightness and the color coordinate value and Benchmark brightness and the color coordinate value in storage part, deposited that are detected and analyze by graphical analysis portion, automatically proofread and correct and set the brightness and the color coordinate value of television receiver then according to result relatively;
Be provided with connecting portion, be used for transmitting brightness and the color coordinate value that receives by control part to television receiver.
2, the gray coefficient adjusting device that is used for regulating automatically picture brightness according to claim 1 is characterized in that described graphical analysis portion is brightness and the color coordinate that is used for detecting the picture privileged site.
3, the gray coefficient adjusting device that is used for regulating automatically picture brightness according to claim 1 is characterized in that described control part will go brightness and the color coordinate value and the Benchmark brightness and the color coordinate value that leave in the storage part that relatively obtains detecting by graphical analysis portion; If coming to the same thing relatively will go to keep current state so, and the brightness and the color coordinate value of not removing the correcting TV receiver.
4, the gray coefficient adjusting device that is used for regulating automatically picture brightness according to claim 1 is characterized in that described control part will go brightness and the color coordinate value and the Benchmark brightness and the color coordinate value that leave in the storage part that relatively obtains detecting by graphical analysis portion; If difference as a result relatively, brightness and the color coordinate value that will remove the correcting TV receiver so, the Benchmark brightness in making it and leaving storage part in is identical with the color coordinate value.
5, the gray coefficient adjusting device that is used for regulating automatically picture brightness according to claim 1 is characterized in that described connecting portion will receive brightness and the color coordinate data that transmit from control part by wired.
6, be used for regulating automatically the gamma Adjustment System of picture brightness, it is characterized in that comprising following part:
Be provided with television receiver and will receive and export composite picture signal, and brightness according to the rules and color coordinate value, to the screen output image signal;
Be provided with gray coefficient adjusting device, then remove to detect the brightness and the color coordinate of television receiver and picture, remove the brightness and the color coordinate of analyzing and testing, and the brightness and the color coordinate value of going temporary detection and analyzing, go the relatively more temporary brightness and the Benchmark brightness and the color coordinate value of color coordinate value and regulation, go then to judge whether temporary brightness is identical with the Benchmark brightness and the color coordinate value of regulation with the color coordinate value, the brightness and the color coordinate value of removing the calibration setup television receiver according to the result who judges.
7, be used for regulating automatically the grey coefficient regulating method of picture brightness, it is characterized in that comprising the steps:
Be provided with the picture brightness and the color coordinate that detect television receiver by gray coefficient adjusting device, remove the brightness and the color coordinate of analyzing and testing, the temporary then brightness that detects and analyze and the step of color coordinate value;
Be provided with by gray coefficient adjusting device and go the relatively temporary brightness and the Benchmark brightness and the color coordinate value of color coordinate value and regulation, go to judge the step that the Benchmark brightness of temporary brightness and color coordinate value and regulation and color coordinate value be whether identical then;
Be provided with according to the result who judges and come the brightness of correcting TV receiver setting and the step of color coordinate value by gray coefficient adjusting device.
8, the grey coefficient regulating method that is used for regulating automatically picture brightness according to claim 7 is characterized in that graphical analysis portion will detect the brightness and the color coordinate of picture privileged site.
9, the grey coefficient regulating method that is used for regulating automatically picture brightness according to claim 7 is characterized in that gray coefficient adjusting device, will go the Benchmark brightness and the color coordinate value of more detected brightness and color coordinate value and regulation; If coming to the same thing relatively will go to keep current state so, and the brightness and the color coordinate value of not removing the correcting TV receiver.
10, the grey coefficient regulating method that is used for regulating automatically picture brightness according to claim 7 is characterized in that gray coefficient adjusting device, will go the Benchmark brightness and the color coordinate value of more detected brightness and color coordinate value and regulation; If difference as a result relatively, brightness and the color coordinate value that will remove the correcting TV receiver so, the Benchmark brightness in making it and leaving storage part in is identical with the color coordinate value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610056922 CN101035298A (en) | 2006-03-07 | 2006-03-07 | Gray coefficient adjusting device for automatically adjusting the picture brightness and the gray coefficient adjusting system and its method using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610056922 CN101035298A (en) | 2006-03-07 | 2006-03-07 | Gray coefficient adjusting device for automatically adjusting the picture brightness and the gray coefficient adjusting system and its method using the same |
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| CN101035298A true CN101035298A (en) | 2007-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200610056922 Pending CN101035298A (en) | 2006-03-07 | 2006-03-07 | Gray coefficient adjusting device for automatically adjusting the picture brightness and the gray coefficient adjusting system and its method using the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618861A (en) * | 2013-10-28 | 2014-03-05 | 南京熊猫电子股份有限公司 | A method for calibrating image brightness of a tablet television receiver |
| CN105516824A (en) * | 2015-12-10 | 2016-04-20 | 小米科技有限责任公司 | Method and device for adjusting brightness of television screen |
| CN112601080A (en) * | 2020-12-11 | 2021-04-02 | 四川长虹电器股份有限公司 | Method for judging television monochromatic field signal |
-
2006
- 2006-03-07 CN CN 200610056922 patent/CN101035298A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618861A (en) * | 2013-10-28 | 2014-03-05 | 南京熊猫电子股份有限公司 | A method for calibrating image brightness of a tablet television receiver |
| CN105516824A (en) * | 2015-12-10 | 2016-04-20 | 小米科技有限责任公司 | Method and device for adjusting brightness of television screen |
| CN112601080A (en) * | 2020-12-11 | 2021-04-02 | 四川长虹电器股份有限公司 | Method for judging television monochromatic field signal |
| CN112601080B (en) * | 2020-12-11 | 2022-03-15 | 四川长虹电器股份有限公司 | Method for judging television monochromatic field signal |
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