CN102737607A - Display control device, display control method and display device of liquid crystal screen - Google Patents
Display control device, display control method and display device of liquid crystal screen Download PDFInfo
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- CN102737607A CN102737607A CN2012102562146A CN201210256214A CN102737607A CN 102737607 A CN102737607 A CN 102737607A CN 2012102562146 A CN2012102562146 A CN 2012102562146A CN 201210256214 A CN201210256214 A CN 201210256214A CN 102737607 A CN102737607 A CN 102737607A
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Abstract
The invention provides a display control device of a liquid crystal screen. The display control device comprises a frequency obtaining unit and a signal output unit, wherein the frequency obtaining unit is used for obtaining a corresponding initial signal frequency according to received image information of an image display signal; and the signal output unit is used for outputting a corresponding initial signal to a display driving device of a liquid crystal screen according to the initial signal frequency, so that the liquid crystal screen has a corresponding scanning frequency. According to another aspect of the invention, a display control method of the liquid crystal screen is provided. With the adoption of the technical scheme of the invention, the liquid crystal screen can be controlled to fresh an image in a corresponding scanning frequency according to the information of an image signal; poor image display effect or influence to the eyesight of a user caused by the simplification of an image fresh frequency is avoided; and an optimal display effect is achieved.
Description
Technical field
The present invention relates to LCD screen actuation techniques field, in particular to a kind of sweep frequency control device display control unit of LCD screen and sweep frequency control method display control method, a kind of display device.
Background technology
Traditional liquid crystal panel generally is divided into 60 hertz, 120 hertz, 240 hertz these three kinds of main flow panels; The single image refreshing frequency of 60 hertz or 120 hertz is mostly adopted in the normal tv signal source; And for fast gate-type 3D liquid crystal display; Its 3D rendering mostly adopts the single image refreshing frequency control of 120 hertz or 240 hertz, and does not have the application scheme of changeable frequency, all is single a kind of fixedly refreshing frequency.Such as for fast gate-type 3D rendering, 240 hertz of image effects will be got well, and for normal signal; 60 hertz or 120 hertz of image effects are just relatively good, if the mandatory down low frequency possibly cause the picture card to pause; If force to improve frequency; Then possibly produce hangover or ghost, not only can influence image effect, also maybe user's eyesight be impacted.
Therefore, need a kind of new display control technology, the image display effect that can avoid the simplification owing to the image refreshing frequency to cause is good or to user's eyesight influence.
Summary of the invention
Can't cooperate preferably with picture signal in order to solve fixedly refreshing frequency single in the correlation technique; Thereby the picture effect that causes is poor, influence problems such as user's eyesight; The invention provides a kind of display control technology of LCD screen; Can make image display effect desirable more according to the information Control LCD screen of picture signal with corresponding sweep frequency refreshed image.
In view of this, the present invention proposes a kind of display control unit of LCD screen, comprising: the frequency acquiring unit is used for the corresponding start signal frequency of image information acquisition according to the image display signal that receives; Signal output unit is used for according to said start signal frequency, exports the display drive apparatus of corresponding start signal to said LCD screen, so that said LCD screen has corresponding sweep frequency.
In this technical scheme; According to the pictures different signal, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image; Thereby the frequency difference through start signal; Make LCD screen with the sweep frequency refreshed image of correspondence, thereby avoided the pictures different signal is adopted identical sweep frequency, make every kind of image all can refresh through sweep frequency correspondence, only; To reach best display effect, can be owing to sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.
According to another aspect of the invention, also proposed a kind of display control method of LCD screen, having comprised: step 202, according to the corresponding start signal frequency of the image information acquisition of the image display signal that receives; Step 204 according to said start signal frequency, is exported the display drive apparatus of corresponding start signal to said LCD screen, so that said LCD screen has corresponding sweep frequency.
In this technical scheme; According to the pictures different signal, choose corresponding start signal, because the frequency of start signal has determined the sweep frequency of correspondence image; Thereby the frequency difference through start signal; Make LCD screen with the sweep frequency refreshed image of correspondence, thereby avoided the pictures different signal is adopted identical sweep frequency, make every kind of image all can refresh through sweep frequency correspondence, only; To reach best display effect, can be owing to sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.
According to another aspect of the invention, also propose a kind of display device, comprised the display control unit of the described LCD screen of above-mentioned arbitrary technical scheme.
Pass through technique scheme; Can be according to the information Control LCD screen of picture signal with corresponding sweep frequency refreshed image; The image display effect of avoiding the simplification owing to the image refreshing frequency to cause is good or to user's eyesight influence, realizes best display effect.
Description of drawings
Fig. 1 shows the block diagram of the display control unit of LCD screen according to an embodiment of the invention;
Fig. 2 shows the process flow diagram of the display control method of LCD screen according to an embodiment of the invention;
Fig. 3 shows the start signal frequency and the synoptic diagram of sweep frequency according to an embodiment of the invention accordingly.
Embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with accompanying drawing and embodiment.Need to prove that under the situation of not conflicting, the application's embodiment and the characteristic among the embodiment can make up each other.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 shows the block diagram of the display control unit of LCD screen according to an embodiment of the invention.
As shown in Figure 1, the display control unit 100 of LCD screen comprises according to an embodiment of the invention: frequency acquiring unit 102 is used for the corresponding start signal frequency of image information acquisition according to the image display signal that receives; Signal output unit 104 is used for exporting the display drive apparatus of corresponding start signal to LCD screen according to the start signal frequency, so that LCD screen has corresponding sweep frequency.
In this technical scheme, each two field picture of LCD screen all has a corresponding start signal, and the frequency of start signal has determined the sweep frequency of correspondence image.According to the pictures different signal; Choose corresponding start signal; Because the frequency of start signal has determined the sweep frequency of correspondence image, thereby the frequency difference through start signal, make the sweep frequency refreshed image of LCD screen with correspondence; Thereby avoided the pictures different signal is adopted identical sweep frequency; Make every kind of image all can refresh through sweep frequency correspondence, only, to reach best display effect, can be owing to sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.As for 3D rendering, the sweep frequency that can control LCD screen is 120 hertz, cooperates scanning backlight; Realizing 120 hertz fast gate-type 3D effect, if when having relatively high expectations for 3D effect, the sweep frequency that can control LCD screen is 240 hertz; Required minimum crosstalk effect when satisfying high request, and for non-3D rendering, the sweep frequency that then can control LCD screen is 60 hertz; Make sweep frequency corresponding, guaranteed that the picture signal loss is minimum with the incoming frequency of picture signal.Through control the sweep frequency of LCD screen according to the difference of image type, can be so that the display effect of image be desirable more.
In technique scheme, under a kind of situation, image information comprises the frequency of image display signal, and then frequency acquiring unit 102 is used for: obtain the frequency of image display signal, and with the frequency of image display signal as the start signal frequency.
In this technical scheme; The image display signal of input itself has certain frequency, like 60Hz or 120Hz etc., and can be with the frequency of image display signal start signal frequency as correspondence; Thereby dynamically adjust the sweep frequency of corresponding liquid crystal screen, in the hope of reaching optimal display result.
In technique scheme; Under the another kind of situation; Image information comprises the type of image display signal, and then the display control unit of LCD screen also comprises: association store unit 106 is used for the type and at least a start signal frequency of at least a image display signal are carried out association store; And frequency acquiring unit 102 is used for: confirm the real-time type of image display signal, and obtain the start signal frequency that is associated with real-time type.
In this technical scheme; Can image type (be embodied in the type of image display signal; Such as this image display signal is 2D picture signal or 3D rendering signal) carry out association store with corresponding start signal frequency; Can directly judge and export the start signal of corresponding frequencies according to the type of image,, the 3D rendering signal is associated with 240Hz such as the 2D picture signal is associated with 60Hz; Be 2D signal or 3D signal then, can select corresponding 60Hz or 240Hz as corresponding start signal frequency according to the current images shows signal; And if do not carry out association store, then can also pass through preset algorithm, according to the image type that obtains; Calculate corresponding optimum scanning frequency; And the start signal of output respective frequencies, but obviously, through corresponding stored with image type and start signal frequency; Can save the time of calculating sweep frequency, improve the travelling speed of system.
In technique scheme, also comprise: unit 108 is set, is used for the start signal frequency being provided with according to the order that is provided with that receives.
In this technical scheme, the user can be provided with the start signal frequency as required, and then regulates sweep frequency, obtains the display effect of actual needs.
In above-mentioned arbitrary technical scheme, signal output unit 104 can be sequential control (TCON, a Timing Controller) plate.
In above-mentioned arbitrary technical scheme, the image display signal that frequency acquiring unit 102 receives comprises 3D rendering signal or 2D picture signal, and wherein: at image display signal is under the situation of 3D rendering signal, and then the start signal frequency is 120 hertz or 240 hertz; At image display signal is under the situation of 2D picture signal, and then the start signal frequency is 60 hertz.
Certainly, what it should be appreciated by those skilled in the art is that the frequency of different start signals differs and is decided to be above-mentioned 60,120 or 240 hertz, can also set according to actual needs arbitrarily or improved signal frequency for other.
Fig. 2 shows the process flow diagram of the display control method of LCD screen according to an embodiment of the invention.
As shown in Figure 2, the display control method of LCD screen according to an embodiment of the invention comprises: step 202, according to the corresponding start signal frequency of the image information acquisition of the image display signal that receives; Step 204 according to the start signal frequency, is exported the display drive apparatus of corresponding start signal to LCD screen, so that LCD screen has corresponding sweep frequency.
In this technical scheme, each two field picture of LCD screen all has a corresponding start signal, and the frequency of start signal has determined the sweep frequency of correspondence image.According to the pictures different signal; Choose corresponding start signal; Because the frequency of start signal has determined the sweep frequency of correspondence image, thereby the frequency difference through start signal, make the sweep frequency refreshed image of LCD screen with correspondence; Thereby avoided the pictures different signal is adopted identical sweep frequency; Make every kind of image all can refresh through sweep frequency correspondence, only, to reach best display effect, can be owing to sweep frequency is crossed slow cause Ka Dun or too fast hangover, the ghost etc. of producing of sweep frequency.As for 3D rendering, the sweep frequency that can control LCD screen is 120 hertz, cooperates scanning backlight; Realizing 120 hertz fast gate-type 3D effect, if when having relatively high expectations for 3D effect, the sweep frequency that can control LCD screen is 240 hertz; Required minimum crosstalk effect when satisfying high request, and for non-3D rendering, the sweep frequency that then can control LCD screen is 60 hertz; Make sweep frequency corresponding, guaranteed that the picture signal loss is minimum with the incoming frequency of picture signal.Through control the sweep frequency of LCD screen according to the difference of image type, can be so that the display effect of image be desirable more.
In technique scheme, under a kind of situation, image information comprises the frequency of image display signal, and then step 202 comprises: obtain the frequency of image display signal, and with the frequency of image display signal as the start signal frequency.
In this technical scheme; The image display signal of input itself has certain frequency, like 60Hz or 120Hz etc., and can be with the frequency of image display signal start signal frequency as correspondence; Thereby dynamically adjust the sweep frequency of corresponding liquid crystal screen, in the hope of reaching optimal display result.
In technique scheme, under the another kind of situation, image information comprises the type of image display signal, then before step 202, also comprises: the type and at least a start signal frequency of at least a image display signal are carried out association store; And step 202 comprises: confirm the real-time type of image display signal, and obtain the start signal frequency that is associated with real-time type.
In this technical scheme; Can image type (be embodied in the type of image display signal; Such as this image display signal is 2D picture signal or 3D rendering signal) carry out association store with corresponding start signal frequency; Can directly judge and export the start signal of corresponding frequencies according to the type of image,, the 3D rendering signal is associated with 240Hz such as the 2D picture signal is associated with 60Hz; Be 2D signal or 3D signal then, can select corresponding 60Hz or 240Hz as corresponding start signal frequency according to the current images shows signal; And if do not carry out association store, then can also pass through preset algorithm, according to the image type that obtains; Calculate corresponding optimum scanning frequency; And the start signal of output respective frequencies, but obviously, through corresponding stored with image type and start signal frequency; Can save and calculate the time of obtaining sweep frequency, improve the travelling speed of system.
In technique scheme, also comprise:, said start signal frequency is provided with according to the order that is provided with that receives.
In this technical scheme, the user can be provided with the start signal frequency as required, and then regulates sweep frequency, obtains the display effect of actual needs.
In above-mentioned arbitrary technical scheme, image display signal comprises 3D rendering signal or 2D picture signal, and wherein: if image display signal is the 3D rendering signal, then the start signal frequency is 120 hertz or 240 hertz; If image display signal is the 2D picture signal, then the start signal frequency is 60 hertz.
Certainly, what it should be appreciated by those skilled in the art is that the frequency of different start signals differs and is decided to be above-mentioned 60,120 or 240 hertz, can also set according to actual needs arbitrarily or improved signal frequency for other.
Fig. 3 shows the start signal frequency and the synoptic diagram of sweep frequency according to an embodiment of the invention accordingly.
As shown in Figure 3; Present LCD screen generally has three kinds of sweep frequencies, is respectively 60 hertz, 120 hertz, 240 hertz, all corresponding start signal of every two field picture; Specifically can be the STV signal; The triggering mode of start signal can be to become high level by low level, and high level triggered every two field picture and scans after lasting a period of time.
The frequency of start signal has also determined the sweep frequency of image, and as when start signal changes with 60 hertz frequency, every two field picture scans with 60 hertz frequency, and the scan period is 1/60=16.7ms; When start signal changed with 120 hertz frequency, every two field picture scanned with 120 hertz frequency, and the scan period is 1/120=8.3ms; When start signal changed with 240 hertz frequency, every two field picture scanned with 240 hertz frequency, and the scan period is 1/240=4.2ms.
According to another aspect of the invention, also propose a kind of display device, comprised the display control unit of the described LCD screen of above-mentioned arbitrary technical scheme.
More than be described with reference to the accompanying drawings technical scheme of the present invention, considered in the correlation technique, the LCD screen sweep frequency is fixed, and can't change sweep frequency according to different images.The present invention proposes a kind of display control unit of LCD screen; Can be according to the information Control LCD screen of picture signal with corresponding sweep frequency refreshed image; The image display effect of avoiding the simplification owing to the image refreshing frequency to cause is good or to user's eyesight influence, thereby realizes best display effect.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the display control unit of a LCD screen is characterized in that, comprising:
The frequency acquiring unit is used for the image information according to the image display signal that receives, and obtains corresponding start signal frequency;
Signal output unit is used for according to said start signal frequency, exports the display drive apparatus of corresponding start signal to said LCD screen, so that said LCD screen has corresponding sweep frequency.
2. the display control unit of LCD screen according to claim 1 is characterized in that, said image information comprises the frequency of said image display signal, and then said frequency acquiring unit is used for:
Obtain the frequency of said image display signal, and with the frequency of said image display signal as said start signal frequency.
3. the display control unit of LCD screen according to claim 1 is characterized in that, said image information comprises the type of said image display signal, and then the display control unit of said LCD screen also comprises:
The association store unit is used for the type and at least a said start signal frequency of at least a said image display signal are carried out association store; And
Said frequency acquiring unit is used for: confirm the real-time type of said image display signal, and obtain the start signal frequency that is associated with said real-time type.
4. the display control unit of LCD screen according to claim 3 is characterized in that, also comprises:
The unit is set, is used for said start signal frequency being provided with according to the order that is provided with that receives.
5. according to the display control unit of each described LCD screen in the claim 1 to 4, it is characterized in that said signal output unit comprises the sequential control plate.
6. the display control method of a LCD screen is characterized in that, comprising:
Step 202 is according to the corresponding start signal frequency of the image information acquisition of the image display signal that receives;
Step 204 according to said start signal frequency, is exported the display drive apparatus of corresponding start signal to said LCD screen, so that said LCD screen has corresponding sweep frequency.
7. the display control method of LCD screen according to claim 6 is characterized in that, said image information comprises the frequency of said image display signal, and then said step 202 comprises:
Obtain the frequency of said image display signal, and with the frequency of said image display signal as said start signal frequency.
8. the display control method of LCD screen according to claim 6 is characterized in that, said image information comprises the type of said image display signal, then before said step 202, also comprises:
The type and at least a said start signal frequency of at least a said image display signal are carried out association store; And
Said step 202 comprises:
Confirm the real-time type of said image display signal, and obtain the start signal frequency that is associated with said real-time type.
9. the display control method of LCD screen according to claim 8 is characterized in that, also comprises:
According to the order that is provided with that receives, said start signal frequency is provided with.
10. a display device is characterized in that, comprises the display control unit like each described LCD screen in the claim 1 to 5.
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| CN103165093A (en) * | 2013-02-26 | 2013-06-19 | 深圳市金立通信设备有限公司 | Method for adjusting screen refresh rate and display device |
| CN103997335B (en) * | 2014-05-13 | 2017-04-05 | 合肥鑫晟光电科技有限公司 | The setting device of the signal frequency of time schedule controller, method and display device |
| CN106652919A (en) * | 2016-09-09 | 2017-05-10 | 青岛海信电器股份有限公司 | Image display method and display apparatus |
| CN111326126A (en) * | 2020-04-16 | 2020-06-23 | 福州京东方光电科技有限公司 | Signal supply circuit, signal supply method and display device |
| CN113643664A (en) * | 2021-08-16 | 2021-11-12 | 成都京东方光电科技有限公司 | Drive module and display device |
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| CN111326126A (en) * | 2020-04-16 | 2020-06-23 | 福州京东方光电科技有限公司 | Signal supply circuit, signal supply method and display device |
| CN111326126B (en) * | 2020-04-16 | 2022-03-25 | 福州京东方光电科技有限公司 | Signal supply circuit, signal supply method and display device |
| CN113643664A (en) * | 2021-08-16 | 2021-11-12 | 成都京东方光电科技有限公司 | Drive module and display device |
| CN113643664B (en) * | 2021-08-16 | 2022-12-02 | 成都京东方光电科技有限公司 | Drive module and display device |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Video Technology Co., Ltd Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: HISENSE ELECTRIC Co.,Ltd. |