CN101964174A - Method and device for increasing refresh rate of light-emitting diode (LED) display screen and video display system - Google Patents
Method and device for increasing refresh rate of light-emitting diode (LED) display screen and video display system Download PDFInfo
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- CN101964174A CN101964174A CN2010102889125A CN201010288912A CN101964174A CN 101964174 A CN101964174 A CN 101964174A CN 2010102889125 A CN2010102889125 A CN 2010102889125A CN 201010288912 A CN201010288912 A CN 201010288912A CN 101964174 A CN101964174 A CN 101964174A
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Abstract
The invention discloses a method and a device for increasing the refresh rate of a light-emitting diode (LED) display screen and a video display system. The method comprises the following steps of: storing the transmitted video data into an external memory according to a preset sequence; when the external memory stores one frame of the video data, combining the n-th bit of each piece of stored video data to be the n-th bit of new data, wherein n is an integer and is more than or equal to 1; and reading the preset bit of the new data according to a parameter displayed by the LED display screen and transmitting the read preset bit of the new data to the LED display screen. The method and the device for increasing the refresh rate of the LED display screen and the video display system have the advantages of increasing the refresh rate of the display screen, increasing the control range of a scanning plate, reducing the using times of the scanning plate and correspondingly reducing the cost of the system.
Description
Technical field
The present invention relates to LED video display control system field, relate in particular to a kind of method and device and a kind of video display system that improves the LED display refresh rate.
Background technology
The video display system of a LED giant-screen of the prior art comprises a dash receiver and several scanning boards; Principle of work is: the video data that scanning board transmits dash receiver is sent to LED display according to the display parameter of LED display.The range of control of general scanning board is big more, and it is many more that promptly each scans counting of strip, and the needed scanning board of whole LED giant-screen is just few more, otherwise the scanning board that needs is just many more.Therefore increase the range of control of scanning board, just can reduce the quantity of scanning board, thereby reduce the cost of The whole control system.This is for will seem especially important in market competition from now on.But scanning board increases the internal memory that control area can reduce refreshing frequency or increase acp chip on the scanning board.Reduce refresh rate and make the display effect of giant-screen that flickering be arranged, the internal memory that increases acp chip need increase the price of each scanning board equally.
Summary of the invention
The invention provides a kind of method and device and a kind of video display system that improves the LED display refresh rate, it can improve the display screen refresh rate, increases the range of control of scanning board, reduces system cost.
Technical scheme of the present invention is:
A kind of method that improves the LED display refresh rate comprises step:
The video data that transmits is stored in the external memory storage by predefined procedure;
Behind described external memory stores one-frame video data, the n position of each video data of storage is merged the n position be combined as new data, wherein n round numbers, n is more than or equal to 1;
From external memory storage, read the pre-determined bit of described new data according to the display parameter of LED display, and the pre-determined bit of the new data that reads is sent to LED display.
A kind of device that improves the LED display refresh rate comprises:
Receiver module, the video data that is used for transmitting stores external memory storage into by predefined procedure;
Data processing module is used for behind described external memory stores one-frame video data, and the n position of each video data of storage is merged the n position be combined as new data, wherein n round numbers, and n is more than or equal to 1;
Read module is used for reading the pre-determined bit of described new data according to the display parameter of LED display from external memory storage, and the pre-determined bit of the new data that reads is sent to LED display.
A kind of video display system comprises dash receiver and scanning board; And the external memory storage that is connected with scanning board;
Scanning board stores the video data that dash receiver transmits in the external memory storage into by predefined procedure;
Behind described external memory stores one-frame video data, the n position of each video data that scanning board will be stored merges the n position that is combined as new data, wherein n round numbers, and n is more than or equal to 1;
Scanning board reads the pre-determined bit of described new data according to the display parameter of LED display from external memory storage, and the pre-determined bit of the new data that reads is sent to LED display.
The present invention stores into the video data that transmits in the external memory storage earlier, externally behind the memory stores one-frame video data, the n position of each video data of storage is merged the n position be combined as new data, promptly again video data stored is made up, the 1st hyte of each video data of these storages is combined into the 1st of new data, the 2nd hyte of each video data is combined into the 2nd of new data ...; Owing to store into the video data that transmits in the external memory storage earlier, then can improve the transfer rate of video data, and by the one-frame video data of storing is reconfigured, read according to the pre-determined bit of display parameter again the new data after making up, and be sent to LED display, then can improve the data rate that is sent to LED display, also just can improve the refresh rate of LED display, increase the range of control of scanning board, reduce the use number of scanning board, also just reduced the cost of system accordingly.
Description of drawings
Fig. 1 is the process flow diagram that the present invention improves the method for LED display refresh rate;
Fig. 2 is the structural representation that the present invention improves the device of LED display refresh rate;
Fig. 3 is the structural representation of video display system of the present invention;
To be the present invention reconfigure synoptic diagram into new data with the video data that transmits to Fig. 4.
Embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are done a detailed elaboration.
The method of raising LED display refresh rate of the present invention as Fig. 1, comprises step:
S101, the video data that transmits is stored in the external memory storage by predefined procedure; Described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display, earlier the video data that transmits is stored in promptly that (scheme of the prior art is without external memory storage in the external memory storage, be after the video data that will transmit is sent to LED display, receive the video data that transmits again, the video data that receives then can not cover the video data of previous reception, so the video data transfer rate is very slow), can not cover the video data of previous transmission, can improve the transfer rate of video data accordingly;
S102, behind described external memory stores one-frame video data, the n position of each video data of storage is merged the n position be combined as new data, wherein n round numbers, n is more than or equal to 1; The 1st merging that is about to each video data of storage be combined as the 1st of new data, the 2nd merging of each video data is combined as the 2nd of new data ... the n position of each video data is merged the n position that is combined as new data; As shown in Figure 4, video data stored has 16, each video data comprises 16 (bit0 to bit15), after reconfiguring, the 1st bit0 position that comprises each video data of new data, the 2nd bit1 position that comprises each video data of new data ... the 15th bit15 position that comprises each video data of new data;
S103, read the pre-determined bit of described new data, and the pre-determined bit of the new data that reads is sent to LED display according to the display parameter of LED display.Because video data stored is reconfigured, certain position that only need read new data when then at every turn reading gets final product, can improve the data rate that is sent to LED display, also just can improve the refresh rate of display screen, increase the range of control of scanning board, reduce the use number of scanning board, also just reduced the cost of system accordingly.
Wherein, the n position of each video data that step will be stored merges the n position that is combined as new data, is specially:
The one-frame video data of elder generation's reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.Can improve data processing speed like this, improve the refresh rate of display screen further.
Corresponding with the method for above-mentioned raising LED display refresh rate, the invention also discloses a kind of device that improves the LED display refresh rate, as Fig. 2, comprising:
Receiver module, the video data that is used for transmitting stores external memory storage into by predefined procedure; Described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display;
Data processing module is connected with described receiver module, behind described external memory stores one-frame video data, the n position of each video data of storage is merged the n position be combined as new data, wherein n round numbers, and n is more than or equal to 1;
Read module is connected with described data processing module, is used for reading according to the display parameter of LED display the pre-determined bit of described new data, and the pre-determined bit of the new data that reads is sent to LED display.
Wherein, the n position of each video data that data processing module will be stored merges the n position that is combined as new data, is specially:
The one-frame video data of elder generation's reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.Can improve data processing speed like this, improve the refresh rate of display screen further.
The invention also discloses a kind of video display system,, comprise dash receiver, scanning board and external memory storage as Fig. 3; Dash receiver is connected with scanning board respectively with external memory storage;
Scanning board stores the video data that dash receiver transmits in the external memory storage into by predefined procedure; Described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display;
Behind described external memory stores one-frame video data, the n position of each video data that scanning board will be stored merges the n position that is combined as new data, wherein n round numbers, and n is more than or equal to 1;
Scanning board reads the pre-determined bit of described new data according to the display parameter of LED display, and the pre-determined bit of the new data that reads is sent to LED display.
Wherein, the n position of each video data that scanning board will be stored merges the n position that is combined as new data, is specially:
The one-frame video data of elder generation's reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.Can improve data processing speed like this, improve the refresh rate of display screen further.
During specific implementation, scanning board can comprise a FPGA, this FPGA is connected with external memory storage with dash receiver respectively, FPGA is buffered in the video data that dash receiver transmits in the external memory storage, behind external memory storage buffer memory one-frame video data, the one-frame video data of FPGA reading external memory buffer memory is in the FPGA internal memory, store in the external memory storage after reconfiguring the video data in the internal memory for new data again, the display parameter according to LED display read the pre-determined bit of new data and are sent to LED display afterwards at every turn.
Counting that FPGA reads at every turn equates with the data channel number of scanning board, if each scanning board has 16 data passages, then each externally storer reads in the video data of 16 points in the FPGA internal memory, each point data comprises the gray scale of R, G, B three looks, promptly read in the data of 48 bit at every turn, these 48 data can be pressed R, G, B separate storage.Use the PWM mode drive lamp luminous in, FPGA whenever reads the data of first certain the bit position of reading 16 passages that is equivalent to walk abreast, data read rates is very fast, the time of lighting of corresponding bit position correspondence just can be finished the gray scale demonstration in cooperations.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (9)
1. a method that improves the LED display refresh rate is characterized in that, comprises step:
The video data that transmits is stored in the external memory storage by predefined procedure;
Behind described external memory stores one-frame video data, the n position of each video data of storage is merged the n position be combined as new data, wherein n round numbers, n is more than or equal to 1;
From external memory storage, read the pre-determined bit of described new data according to the display parameter of LED display, and the pre-determined bit of the new data that reads is sent to LED display.
2. the method for raising LED display refresh rate according to claim 1 is characterized in that: described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display.
3. the method for raising LED display refresh rate according to claim 1 and 2 is characterized in that: the n position of each video data that will store merges the n position that is combined as new data, is specially:
The one-frame video data of elder generation's reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.
4. a device that improves the LED display refresh rate is characterized in that, comprising:
Receiver module, the video data that is used for transmitting stores external memory storage into by predefined procedure;
Data processing module behind described external memory stores one-frame video data, merges the n position be combined as new data with the n position of each video data of storage, wherein n round numbers, and n is more than or equal to 1;
Read module is used for reading the pre-determined bit of described new data according to the display parameter of LED display from external memory storage, and the pre-determined bit of the new data that reads is sent to LED display.
5. the device of raising LED display refresh rate according to claim 4 is characterized in that: described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display.
6. according to the device of claim 4 or 5 described raising LED display refresh rates, it is characterized in that: the n position of each video data that described data processing module will be stored merges the n position that is combined as new data, is specially:
The one-frame video data of elder generation's reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.
7. a video display system comprises dash receiver and scanning board; It is characterized in that, also comprise the external memory storage that is connected with scanning board;
Scanning board stores the video data that dash receiver transmits in the external memory storage into by predefined procedure;
Behind described external memory stores one-frame video data, the n position of each video data that scanning board will be stored merges the n position that is combined as new data, wherein n round numbers, and n is more than or equal to 1;
Scanning board reads the pre-determined bit of described new data according to the display parameter of LED display from external memory storage, and the pre-determined bit of the new data that reads is sent to LED display.
8. video display system according to claim 7 is characterized in that: described predefined procedure comprises putting in order of LED lamp in delivery time order or the LED display.
9. according to claim 7 or 8 described video display systems, it is characterized in that: the n position of each video data that scanning board will be stored merges the n position that is combined as new data, is specially:
The one-frame video data of scanning board elder generation reading external memory storage in internal memory, with the n position of each video data in the internal memory merge be combined as the n position of new data after, more described new data is stored in the external memory storage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102889125A CN101964174A (en) | 2010-09-21 | 2010-09-21 | Method and device for increasing refresh rate of light-emitting diode (LED) display screen and video display system |
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| CN2010102889125A CN101964174A (en) | 2010-09-21 | 2010-09-21 | Method and device for increasing refresh rate of light-emitting diode (LED) display screen and video display system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103531146A (en) * | 2013-10-22 | 2014-01-22 | 无锡紫芯集成电路系统有限公司 | Data processing module supporting full-color multi-gray-scale LED screen refreshing |
| CN110517626A (en) * | 2019-07-16 | 2019-11-29 | 上海景吾智能科技有限公司 | A kind of method and device improving LED display image refresh rate |
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| KR20070080449A (en) * | 2006-02-07 | 2007-08-10 | 삼성전자주식회사 | Multi-view video encoding apparatus and method |
| CN101404135A (en) * | 2008-11-03 | 2009-04-08 | 北京巨数数字技术开发有限公司 | Method for improving refreshing speed, scanning control apparatus and display system |
| CN101692325A (en) * | 2009-08-12 | 2010-04-07 | 康佳集团股份有限公司 | Method and system for enhancing refresh rate of video display of light-emitting diode |
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2010
- 2010-09-21 CN CN2010102889125A patent/CN101964174A/en active Pending
Patent Citations (4)
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| JP2000148442A (en) * | 1998-11-09 | 2000-05-30 | Sony Corp | Distribution medium and data processing device and method |
| KR20070080449A (en) * | 2006-02-07 | 2007-08-10 | 삼성전자주식회사 | Multi-view video encoding apparatus and method |
| CN101404135A (en) * | 2008-11-03 | 2009-04-08 | 北京巨数数字技术开发有限公司 | Method for improving refreshing speed, scanning control apparatus and display system |
| CN101692325A (en) * | 2009-08-12 | 2010-04-07 | 康佳集团股份有限公司 | Method and system for enhancing refresh rate of video display of light-emitting diode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103531146A (en) * | 2013-10-22 | 2014-01-22 | 无锡紫芯集成电路系统有限公司 | Data processing module supporting full-color multi-gray-scale LED screen refreshing |
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| CN110517626A (en) * | 2019-07-16 | 2019-11-29 | 上海景吾智能科技有限公司 | A kind of method and device improving LED display image refresh rate |
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Application publication date: 20110202 |