CN102543043A - Overscanning automatic adjustment method and system of display equipment - Google Patents
Overscanning automatic adjustment method and system of display equipment Download PDFInfo
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Abstract
The invention discloses an overscanning automatic adjustment method and an overscanning automatic adjustment system of display equipment. The method comprises the following steps that: the display equipment outputs a control signal to an image signal generator, wherein the control signal contains the format requirement of a current image display format supported by a current image input channel; the image signal generator is switched to the current image input channel according to the control signal and feeds back an image adjustment signal corresponding to the current image display format to the display equipment according to the format requirement; the display equipment adjusts an overscanning display area of the current image display format according to the image adjustment signal; and the display equipment is switched to an unadjusted next image display format or an image display format supported by an unadjusted next image input channel. The overscanning automatic adjustment method and the overscanning automatic adjustment system have the beneficial effects that the time consumed is short; no artificial participation is required; while the labor cost is saved, the productivity of an enterprise is greatly improved; and the consistence of the overscanning display area can be ensured, so that the display quality of the display equipment is improved.
Description
Technical field
The present invention relates to the image display technology field, specially refer to display device overscanning automatic adjusting method and system.
Background technology
Usually there is a kind of born physical imperfection on the CRT televisor in the past, cause image frame geometric distortion, and it is obvious more to arrive the edge more.So, reduce the distortion sense for picture displayed is truer, all can the content that be presented on the screen be adjusted to about 90%～95% of picture scope when dispatching from the factory, the parts of images pixel of having lost is exactly so-called overscanning.
When display device has got into the liquid crystal epoch, no longer there is above-mentioned physical imperfection in LCD, but because each regional TV signal can be variant, when transmitting AP information, has deviation.If the picture material that all receives is 100% show all, the situation that possibly have partial channel image display abnormality occurs, and such as leaking the limit, there is interference etc. at the edge.Simultaneously; For other image input channel; Like HDMI, AV, YPBPR etc., then because the image that the image output device (for example DVD, STB, game machine etc.) that different manufacturers is produced is exported can not be accomplished complete standard, the situation that has parts of images edge display abnormality equally occurs.So, even got into the liquid crystal epoch or even other following display technique, need that too the picture material of each input channel is carried out overscanning and handle, to guarantee can both perfect presenting the picture material that the user is watched on every display device.
At present; The method of adjustment of display device overscanning generally is to adjust the register of control overscanning in the display device through the slip-stick artist, and the image display area of actual displayed on equipment adjusted, and by the slip-stick artist adjusted image is measured again; Current overscanning and target overscanning are compared; Constantly revise, so repeatedly several times, the overscanning on display device conforms to the target overscanning.After the overscanning of current format adjustment is accomplished, need to change the image display format or the image input channel continues debugging, all adjust up to the input format of all passages, all supports to finish, just calculate the adjustment completion.Because equipment input channel such as televisor is more and more now, the input format of being supported is also more and more, is example with the televisor; The simulated television standard of now being supported has PAL, NTSC, SECAM etc.; The DTV standard has DVB, ATSC, ISDB, DMB etc., also has other input channel, like AV, YPBPR, S-VIDEO, SCART, HDMI, USB etc.; Cause the workload of the required adjustment of slip-stick artist increasing, efficient is also more and more lower.And different slip-stick artists' level can't guarantee in full accord, and debugging and data measured also can't guarantee in full accord.Even same slip-stick artist, the result who is adjusted in the time of different be deviation to some extent also, the factory state that can't guarantee display device is the show state an of the best.Particularly the update of display screen is more and more faster now, and producer need constantly remove to change the screen body, also just requires the slip-stick artist need constantly join screen, will constantly carry out the overscanning adjustment with regard to bound naturally, wastes a large amount of manpower and materials.
Summary of the invention
Fundamental purpose of the present invention is for providing a kind of quick, efficient, high-quality display device overscanning automatic adjusting method and system.
The present invention proposes a kind of display device overscanning automatic adjusting method, comprises step:
Display device outputs control signals to picture signal generator, and said control signal comprises the call format of the present image display format of present image input channel support;
Said picture signal generator switches to the present image input channel according to said control signal, and adjusts signal according to said call format to the corresponding image of said display device feedback present image display format;
Said display device is according to the overscanning viewing area of said image adjustment signal adjustment present image display format;
Said display device switches to the image display format of unadjusted next image display format or unadjusted next image input channel support.
Preferably, said image adjustment signal is prone to the picture signal of identification for the overscanning frame.
Preferably, said display device specifically comprises according to the step of the overscanning viewing area of said image adjustment signal adjustment present image display format:
Said display device is discerned the overscanning frame of said image adjustment signal;
Said overscanning frame is set in the register of said display device with the overscanning viewing area of interior zone as the present image display format.
Preferably, the said display device step that switches to the image display format of unadjusted next image display format or unadjusted next image input channel support specifically comprises:
When said display device judges that the present image input channel still has the image display format not adjust, switch to unadjusted next image display format.
Preferably, the said display device step that switches to the image display format of unadjusted next image display format or unadjusted next image input channel support specifically comprises:
When said display device is judged the equal adjusted of image display format of present image input channel support, then judge whether to still have the image input channel not adjust and finish;
When said display device judges that still having the image input channel not adjust finishes, then switch to the image display format that unadjusted next image input channel is supported.
The present invention also proposes a kind of display device overscanning automatic adjustment system, comprises display device and picture signal generator,
Said display device specifically comprises:
Control module is used to output control signals to said picture signal generator, and said control signal comprises the call format of the present image display format of present image input channel support;
Adjusting module is used for the overscanning viewing area according to the image adjustment signal adjustment present image display format of said picture signal generator output;
Handover module is used to switch to the image display format that unadjusted next image display format or unadjusted next image input channel are supported;
Said picture signal generator is used for switching to the present image input channel according to said control signal, and adjusts signal according to said call format to the corresponding image of said display device feedback present image display format.
Preferably, said image adjustment signal is prone to the picture signal of identification for the overscanning frame.
Preferably, said adjusting module specifically is used for:
Discern the overscanning frame of said image adjustment signal;
Said overscanning frame is set in the register of said display device with the overscanning viewing area of interior zone as the present image display format.
Preferably, said handover module specifically is used for:
When judging that the present image input channel still has the image display format not adjust, switch to unadjusted next image display format.
Preferably, said handover module specifically also is used for:
When judging the equal adjusted of image display format that the present image input channel is supported, then judge whether to still have the image input channel not adjust and finish;
When judgement still has the image input channel not adjust to finish, then switch to the image display format that unadjusted next image input channel is supported.
The present invention's weak point consuming time need not artificial the participation, each display screen is updated become be more prone to, more quick; When having saved human cost; Also improve the yield-power of enterprise greatly, and can guarantee the consistance of overscanning viewing area, improved the display quality of display device.
Description of drawings
Fig. 1 is the process flow diagram of display device overscanning automatic adjusting method in one embodiment of the invention;
Fig. 2 a is the synoptic diagram of image adjustment signal in the display device overscanning automatic adjusting method of one embodiment of the invention;
Fig. 2 b is the synoptic diagram of image adjustment signal in the display device overscanning automatic adjusting method of another embodiment of the present invention;
Fig. 3 is the process flow diagram of adjustment overscanning viewing area in the display device overscanning automatic adjusting method of one embodiment of the invention;
Fig. 4 is the process flow diagram that switches the image display format in the display device overscanning automatic adjusting method of one embodiment of the invention;
Fig. 5 is the structural representation of display device overscanning automatic adjustment system in one embodiment of the invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, Fig. 1 is the process flow diagram of display device overscanning automatic adjusting method in one embodiment of the invention, and the display device overscanning automatic adjusting method that this embodiment mentions comprises:
Step S10, display device outputs control signals to picture signal generator, and control signal comprises the call format of the present image display format of present image input channel support;
Step S20, picture signal generator switches to the present image input channel according to control signal, and adjusts signal according to call format to the corresponding image of display device feedback present image display format;
Step S30, display device is according to the overscanning viewing area of image adjustment signal adjustment present image display format;
Step S40, display device switch to the image display format of unadjusted next image display format or unadjusted next image input channel support.
Preset automatic overscanning adjustment function in the display device of present embodiment, when this function is opened, can carry out the overscanning adjustment automatically.When the entering overscanning is adjusted function automatically; Display device automatically switches to first image display format that required first image input channel of carrying out the overscanning adjustment is supported; And can export the port of control signal through debug port or USB etc.; Control signal is exported to the debug port of picture signal generator; The control picture signal generator switches to and the pairing passage of display device present image input channel, and picture signal generator is through exporting the corresponding image adjustment signal of present image display format to display device when prepass, and display device is accomplished the adjustment to present image display format overscanning viewing area according to image adjustment signal.After the overscanning adjustment of current format finished, display device automatic switchover image display format carried out the overscanning adjustment to other unadjusted image display formats.Present embodiment has remedied the shortcoming of existing overscanning method of adjustment, and weak point consuming time need not artificial the participation, each display screen is updated become be more prone to, more quick, when having saved human cost, also improved the yield-power of enterprise greatly.Simultaneously,, therefore can guarantee the consistance of overscanning viewing area, improve the display quality of display device because image adjustment signal can be provided with according to the overscanning standard-required in advance.
As shown in Figure 2, Fig. 2 a is the synoptic diagram of image adjustment signal in the display device overscanning automatic adjusting method of one embodiment of the invention, and Fig. 2 b is the synoptic diagram of image adjustment signal in the display device overscanning automatic adjusting method of another embodiment of the present invention.
Image adjustment signal in the present embodiment is prone to the picture signal of identification for the overscanning frame; It can be the black window signal of the white background shown in Fig. 2 a; Also can be the white with black window signal shown in Fig. 2 b, or other can be easier to be shown the signal of recognition of devices to the adjustment border.With the black window signal of white background is example, carries out overscanning automatically after the adjustment, and the final viewing area of display device is a complete black part in the black window signal of white background.Before adjusting automatically, black and white boundary sizes in the image adjustment signal that can in advance picture signal generator be set according to the overscanning standard-required of producer and be sent.For example, to the black window signal of white background, the overscanning standard-required of producer is 5%; Promptly require overscanning viewing area scope is controlled at 95% of whole image, then picture signal generator is provided with, make that white background partly accounts for 5% of entire image adjustment signal in the black window signal of white background; Black window partly accounts for 95% of entire image adjustment signal; Automatically after adjusting, the content that is presented on the screen just has only 95% of entire image content, satisfies the overscanning standard-required of producer.Because image adjustment signal can be provided with according to the overscanning standard-required in advance, therefore can guarantee the consistance of overscanning viewing area, has improved the display quality of display device, and has made the overscanning setting of every display device all satisfy the enterprise control standard.
As shown in Figure 3, Fig. 3 is the process flow diagram of adjustment overscanning viewing area in the display device overscanning automatic adjusting method of one embodiment of the invention, and step S30 specifically comprises:
Step S31, the overscanning frame of display device recognition image adjustment signal;
Step S32 is set to the overscanning frame in the register of display device with the overscanning viewing area of interior zone as the present image display format.
Present embodiment is an example with the black window signal of white background; After display device receives the image adjustment signal of the black window of white background; Black and white border to this image is discerned; Automatically the white background of image is partly removed after identification finishes, only shown black window part on screen, and this result is set in the register of display device.When display device dispatches from the factory use; Display device receives needs images displayed; According to the setting of register, the content beyond the deletion overscanning frame, only show the overscanning frame with interior picture material on display screen; Accomplish the overscanning of picture material and handle, guarantee that perfection presents the picture material that the user watches on the display device.
As shown in Figure 4, Fig. 4 is the process flow diagram that switches the image display format in the display device overscanning automatic adjusting method of one embodiment of the invention, and step S40 specifically comprises:
Step S41, display device judge whether the present image input channel still has the image display format not adjust; If, execution in step S42 then; If deny, then execution in step S43;
Step S42 switches to unadjusted next image display format;
Step S43 judges whether to still have the image input channel not adjust and finishes; If, execution in step S44 then; If deny, then execution in step S45;
Step S44 switches to the image display format that unadjusted next image input channel is supported;
Step S45 withdraws from overscanning and adjusts flow process automatically.
The overscanning adjustment of present embodiment present image display format finishes; Display device continues to judge whether adjust in addition in the image display format that the present image input channel supported; If have; Then switch to unadjusted next image display format, and output has the control signal control picture signal generator switching form of the call format of next image display format, continuation adjustment; If no, judging whether then that all passages have all been adjusted finishes.If also have passage not adjust, then automatically switch to next passage, continue adjustment; Finish if all passages have all been adjusted, then withdraw from overscanning and adjust function automatically.So far; All input channels of whole display device, the picture format of all supports have all been accomplished automatic overscanning adjustment, need not artificial participation, weak point consuming time; Efficient is high; Each display screen is updated become be more prone to, more quick, when having saved human cost, also improved the yield-power of enterprise greatly.In addition; The overscanning self-regulating process is carried out on the display device backstage; For the prompting slip-stick artist adjusts beginning and concluding time, can when the beginning self-regulating process, on the screen of display device, show " in the automatic adjustment of overscanning "; When accomplishing adjustment automatically, on the screen of display device, show " completion is adjusted in overscanning automatically ".
As shown in Figure 5, Fig. 5 is the structural representation of display device overscanning automatic adjustment system in one embodiment of the invention, and the display device overscanning automatic adjustment system that this embodiment mentions comprises display device 10 and picture signal generator 20,
Control module 11 is used to output control signals to picture signal generator 20, and control signal comprises the call format of the present image display format of present image input channel support;
Adjusting module 12 is used for the overscanning viewing area according to the image adjustment signal adjustment present image display format of picture signal generator output;
Handover module 13 is used to switch to the image display format that unadjusted next image display format or unadjusted next image input channel are supported;
The display device 10 of present embodiment is connected with the debug port of picture signal generator 20 through debug port (or USB etc. can export the port of debug signal), and control module 11 outputs control signals to picture signal generator 20; Corresponding each image input channel that connects display device 10 of each image signal output end mouth of picture signal generator 20 can accurately receive each different-format, different channel image signal to guarantee display device 10.In display device 10, preset automatic overscanning adjustment function; After this function is opened; Handover module 13 automatically switches to first image display format that required first image input channel of carrying out the overscanning adjustment is supported; And export control signal to picture signal generator 20 through debug port; Control picture signal generator 20 switches to and the pairing passage of display device 10 present image input channels, image adjustment signal to the display device 10 that picture signal generator 20 output present image display formats are corresponding, and adjusting module 12 is accomplished the adjustment to present image display format overscanning viewing area according to image adjustment signal.After the overscanning adjustment of current format finished, handover module 13 automatic switchover image display formats carried out the overscanning adjustment to other unadjusted image display formats.
Present embodiment has remedied the shortcoming of existing overscanning method of adjustment, and weak point consuming time need not artificial the participation, each display screen is updated become be more prone to, more quick, when having saved human cost, also improved the yield-power of enterprise greatly.Simultaneously,, therefore can guarantee the consistance of overscanning viewing area, improve the display quality of display device 10 because image adjustment signal can be provided with according to the overscanning standard-required in advance.
In the embodiment of the invention, image adjustment signal is the picture signal of the easy identification of overscanning frame, can be the black window signal of white background, or the white with black window signal, or other adjusting module 12 that can be easier to the equipment that is shown 10 recognizes the signal on adjustment border.With the black window signal of white background is example, carries out overscanning automatically after the adjustment, and the final viewing area of display device 10 is a complete black part in the black window signal of white background.Before adjusting automatically, black and white boundary sizes in the image adjustment signal that picture signal generator 20 sent can be set in advance according to the overscanning standard-required of producer.For example, to the black window signal of white background, the overscanning standard-required of producer is 5%; Promptly require overscanning viewing area scope is controlled at 95% of whole image, then picture signal generator 20 is provided with, make that white background partly accounts for 5% of entire image adjustment signal in the black window signal of white background; Black window partly accounts for 95% of entire image adjustment signal; Automatically after adjusting, the content that is presented on the screen just has only 95% of entire image content, satisfies the overscanning standard-required of producer.Because image adjustment signal can be provided with according to the overscanning standard-required in advance, therefore can guarantee the consistance of overscanning viewing area, has improved the display quality of display device 10, and has made the overscanning setting of every display device 10 all satisfy the enterprise control standard.
In the embodiment of the invention, adjusting module 12 specifically is used for:
The overscanning frame of recognition image adjustment signal;
The overscanning frame is set in the register of display device 10 with the overscanning viewing area of interior zone as the present image display format.
Present embodiment is an example with the black window signal of white background; After adjusting module 12 receives the image adjustment signal of the black window of white background; Black and white border to this image is discerned; Automatically the white background of image is partly removed after identification finishes, only shown black window part on screen, and this result is set in the register of display device 10.When display device 10 dispatches from the factory use; Display device 10 receives needs images displayed; According to the setting of register, the content beyond the deletion overscanning frame, only show the overscanning frame with interior picture material on display screen; Accomplish the overscanning of picture material and handle, guarantee that perfection presents the picture material that the user watches on the display device 10.
In the embodiment of the invention, handover module 13 specifically is used for:
When judging that the present image input channel still has the image display format not adjust, switch to unadjusted next image display format;
When judging the equal adjusted of image display format that the present image input channel is supported, then judge whether to still have the image input channel not adjust and finish;
When judgement still has the image input channel not adjust to finish, then switch to the image display format that unadjusted next image input channel is supported.
The overscanning adjustment of present embodiment present image display format finishes; Handover module 13 continues to judge whether adjust in addition in the image display format that the present image input channel supported; If have; Then switch to unadjusted next image display format, and output has the control signal control picture signal generator 20 switching forms of the call format of next image display format, continuation adjustment; If no, judging whether then that all passages have all been adjusted finishes.If also have passage not adjust, then automatically switch to next passage, continue adjustment; Finish if all passages have all been adjusted, then withdraw from overscanning and adjust function automatically.So far; All input channels of whole display device 10, the picture format of all supports have all been accomplished automatic overscanning adjustment, need not artificial participation, weak point consuming time; Efficient is high; Each display screen is updated become be more prone to, more quick, when having saved human cost, also improved the yield-power of enterprise greatly.In addition; The overscanning self-regulating process is carried out on display device 10 backstages; For the prompting slip-stick artist adjusts beginning and concluding time, can when the beginning self-regulating process, on the screen of display device 10, show " in the automatic adjustment of overscanning "; When accomplishing adjustment automatically, on the screen of display device 10, show " completion is adjusted in overscanning automatically ".
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes instructions of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a display device overscanning automatic adjusting method is characterized in that, comprises step:
Display device outputs control signals to picture signal generator, and said control signal comprises the call format of the present image display format of present image input channel support;
Said picture signal generator switches to the present image input channel according to said control signal, and adjusts signal according to said call format to the corresponding image of said display device feedback present image display format;
Said display device is according to the overscanning viewing area of said image adjustment signal adjustment present image display format;
Said display device switches to the image display format of unadjusted next image display format or unadjusted next image input channel support.
2. display device overscanning automatic adjusting method according to claim 1 is characterized in that, said image adjustment signal is prone to the picture signal of identification for the overscanning frame.
3. display device overscanning automatic adjusting method according to claim 2 is characterized in that, said display device specifically comprises according to the step of the overscanning viewing area of said image adjustment signal adjustment present image display format:
Said display device is discerned the overscanning frame of said image adjustment signal;
Said overscanning frame is set in the register of said display device with the overscanning viewing area of interior zone as the present image display format.
4. according to claim 2 or 3 described display device overscanning automatic adjusting method; It is characterized in that the step that said display device switches to the image display format of unadjusted next image display format or unadjusted next image input channel support specifically comprises:
When said display device judges that the present image input channel still has the image display format not adjust, switch to unadjusted next image display format.
5. display device overscanning automatic adjusting method according to claim 4; It is characterized in that the step that said display device switches to the image display format of unadjusted next image display format or unadjusted next image input channel support specifically comprises:
When said display device is judged the equal adjusted of image display format of present image input channel support, then judge whether to still have the image input channel not adjust and finish;
When said display device judges that still having the image input channel not adjust finishes, then switch to the image display format that unadjusted next image input channel is supported.
6. a display device overscanning automatic adjustment system is characterized in that, comprises display device and picture signal generator,
Said display device specifically comprises:
Control module is used to output control signals to said picture signal generator, and said control signal comprises the call format of the present image display format of present image input channel support;
Adjusting module is used for the overscanning viewing area according to the image adjustment signal adjustment present image display format of said picture signal generator output;
Handover module is used to switch to the image display format that unadjusted next image display format or unadjusted next image input channel are supported;
Said picture signal generator is used for switching to the present image input channel according to said control signal, and adjusts signal according to said call format to the corresponding image of said display device feedback present image display format.
7. display device overscanning automatic adjustment system according to claim 6 is characterized in that, said image adjustment signal is prone to the picture signal of identification for the overscanning frame.
8. display device overscanning automatic adjustment system according to claim 7 is characterized in that said adjusting module specifically is used for:
Discern the overscanning frame of said image adjustment signal;
Said overscanning frame is set in the register of said display device with the overscanning viewing area of interior zone as the present image display format.
9. according to claim 7 or 8 described display device overscanning automatic adjustment systems, it is characterized in that said handover module specifically is used for:
When judging that the present image input channel still has the image display format not adjust, switch to unadjusted next image display format.
10. display device overscanning automatic adjustment system according to claim 9 is characterized in that said handover module specifically also is used for:
When judging the equal adjusted of image display format that the present image input channel is supported, then judge whether to still have the image input channel not adjust and finish;
When judgement still has the image input channel not adjust to finish, then switch to the image display format that unadjusted next image input channel is supported.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475822A (en) * | 2013-08-28 | 2013-12-25 | 小米科技有限责任公司 | Image processing method, device and terminal equipment |
| CN107613361A (en) * | 2017-09-25 | 2018-01-19 | 福州瑞芯微电子股份有限公司 | A kind of over-scanned images processing method and a kind of storage device |
| CN108012180A (en) * | 2017-12-06 | 2018-05-08 | 深圳Tcl新技术有限公司 | Program broadcasting method, TV and storage medium |
| CN109873922A (en) * | 2019-02-20 | 2019-06-11 | 广州视源电子科技股份有限公司 | Method and device for adjusting overscan parameters, display equipment and storage medium |
-
2012
- 2012-02-03 CN CN201210024376.7A patent/CN102543043B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475822A (en) * | 2013-08-28 | 2013-12-25 | 小米科技有限责任公司 | Image processing method, device and terminal equipment |
| CN107613361A (en) * | 2017-09-25 | 2018-01-19 | 福州瑞芯微电子股份有限公司 | A kind of over-scanned images processing method and a kind of storage device |
| CN108012180A (en) * | 2017-12-06 | 2018-05-08 | 深圳Tcl新技术有限公司 | Program broadcasting method, TV and storage medium |
| CN108012180B (en) * | 2017-12-06 | 2020-12-08 | 深圳Tcl新技术有限公司 | Program playing method, television and storage medium |
| CN109873922A (en) * | 2019-02-20 | 2019-06-11 | 广州视源电子科技股份有限公司 | Method and device for adjusting overscan parameters, display equipment and storage medium |
| CN109873922B (en) * | 2019-02-20 | 2021-01-19 | 广州视源电子科技股份有限公司 | Method and device for adjusting overscan parameters, display equipment and storage medium |
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|---|---|
| CN102543043B (en) | 2014-06-18 |
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