CN202976775U - Driving control circuit of LED array - Google Patents
Driving control circuit of LED array Download PDFInfo
- Publication number
- CN202976775U CN202976775U CN2012205300013U CN201220530001U CN202976775U CN 202976775 U CN202976775 U CN 202976775U CN 2012205300013 U CN2012205300013 U CN 2012205300013U CN 201220530001 U CN201220530001 U CN 201220530001U CN 202976775 U CN202976775 U CN 202976775U
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- controller
- control circuit
- read
- storer
- write
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Abstract
The utility model discloses a driving control circuit of an LED array. The driving control circuit comprises a signal control circuit and a scanning driving circuit, wherein the signal control circuit comprises a memory, a counter, an address controller, a master-slave controller, a read-write controller, a synchronization controller, a gray regulator and a shift latch. The circuit structure is obviously simpler, the area of the circuit is reduced, the reliability is reinforced, the debugging is simpler, multiple processes can be processed in parallel, the sequential processing efficiency of tasks is higher than a single-chip microcomputer, and the refresh frequency of the matrix is also increased. The response time is less than 20ms.
Description
Technical field
The utility model relates to the control circuit of a kind of LED, relates in particular to a kind of Drive and Control Circuit of LED array.
Background technology
The LED dot matrix is a kind of important display terminal of public information, and wherein the big screen LED dot matrix display screen is used in many occasions.Large Screen Display Technology is larger than medium and small screen display difficulty, because its screen is large, LED counts many, and refresh each point in the short time at the utmost point again, this just requires its sweep speed must be very high, and in addition, giant-screen is as the important medium of information issue, all very high to its stability, reliability and extensibility requirement, only have control circuit reasonable in design could satisfy above-mentioned requirements.The existing control circuit response time is slow, can't meet the demands.
The utility model content
The utility model purpose is that a kind of Drive and Control Circuit of LED array is provided for the defective that prior art exists.
The utility model adopts following technical scheme for achieving the above object:
a kind of Drive and Control Circuit of LED array, comprise signal control circuit and scan drive circuit, described signal control circuit comprises storer, counter, address control unit, master-slave controller, read-write controller, isochronous controller, gray scale regulator and displacement latch, wherein the input end of storer receives outside image information, counter exports signal to address control unit respectively after receiving the external sync clock signal, master-slave controller, read-write controller and isochronous controller, the output terminal difference ground connection location controller of master-slave controller and the input end of read-write controller, the output terminal of isochronous controller connects respectively read-write controller, the input end of gray scale regulator and displacement latch, the address signal of storer difference receiver address controller output and the read-write of read-write controller output, storer is sent to scan drive circuit by the displacement latch with image information, the gray scale regulator is sent to scan drive circuit by the displacement latch with grey scale signal.
Preferably, the input end of described storer also arranges data buffer.
Preferably, the output terminal of described storer also arranges data selector.
The beneficial effects of the utility model:
Circuit structure is obviously more succinct, and the area of circuit reduces and reliability strengthens, debug also more simple, can a plurality of processes of parallel processing, higher to the sequential processes efficient of task compared with single-chip microcomputer, the refreshing frequency of dot matrix is improve thereupon also.Response time reaches below 20ms.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
as shown in Figure 1, a kind of Drive and Control Circuit of LED array, comprise signal control circuit and scan drive circuit, described signal control circuit comprises storer, counter, address control unit, master-slave controller, read-write controller, isochronous controller, gray scale regulator and displacement latch, wherein the input end of storer receives outside image information, counter exports signal to address control unit respectively after receiving the external sync clock signal, master-slave controller, read-write controller and isochronous controller, the output terminal difference ground connection location controller of master-slave controller and the input end of read-write controller, the output terminal of isochronous controller connects respectively read-write controller, the input end of gray scale regulator and displacement latch, the address signal of storer difference receiver address controller output and the read-write of read-write controller output, storer is sent to scan drive circuit by the displacement latch with image information, the gray scale regulator is sent to scan drive circuit by the displacement latch with grey scale signal.
Preferably, the input end of described storer also arranges data buffer.
Preferably, the output terminal of described storer also arranges data selector.
When the LED display area was very large, the data volume of transmission was also very large, thus the response time that has increased display system cause flicker, be to improve visual effect, can show by Paralleled.When showing at a high speed dynamically, the luminosity of LED is directly proportional with fluorescent lifetime in the scan period, so can realize the gray scale demonstration by fluorescent lifetime and the ratio of scan period (being dutycycle) of modulating LED.
Claims (3)
1. the Drive and Control Circuit of a LED array, comprise signal control circuit and scan drive circuit, it is characterized in that described signal control circuit comprises storer, counter, address control unit, master-slave controller, read-write controller, isochronous controller, gray scale regulator and displacement latch, wherein the input end of storer receives outside image information, counter exports signal to address control unit respectively after receiving the external sync clock signal, master-slave controller, read-write controller and isochronous controller, the output terminal difference ground connection location controller of master-slave controller and the input end of read-write controller, the output terminal of isochronous controller connects respectively read-write controller, the input end of gray scale regulator and displacement latch, the address signal of storer difference receiver address controller output and the read-write of read-write controller output, storer is sent to scan drive circuit by the displacement latch with image information, the gray scale regulator is sent to scan drive circuit by the displacement latch with grey scale signal.
2. the Drive and Control Circuit of a kind of LED array according to claim 1, is characterized in that the input end of described storer also arranges data buffer.
3. the Drive and Control Circuit of a kind of LED array according to claim 1 and 2, is characterized in that the output terminal of described storer also arranges data selector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205300013U CN202976775U (en) | 2012-10-17 | 2012-10-17 | Driving control circuit of LED array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205300013U CN202976775U (en) | 2012-10-17 | 2012-10-17 | Driving control circuit of LED array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202976775U true CN202976775U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205300013U Expired - Fee Related CN202976775U (en) | 2012-10-17 | 2012-10-17 | Driving control circuit of LED array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202976775U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103778898A (en) * | 2014-02-28 | 2014-05-07 | 帝豪电子（扬州）有限公司 | Dynamic dimming method of liquid crystal display LED backlight |
| CN104240635A (en) * | 2013-06-10 | 2014-12-24 | 缪朝晖 | Display control interface circuit |
| CN107424553A (en) * | 2017-09-22 | 2017-12-01 | 深圳市华星光电技术有限公司 | Scan drive circuit plate and display device |
| CN110191536A (en) * | 2019-05-24 | 2019-08-30 | 亿信科技发展有限公司 | Drive control circuit, drive control chip, integrated packaging component, display system and sparse driving method |
-
2012
- 2012-10-17 CN CN2012205300013U patent/CN202976775U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240635A (en) * | 2013-06-10 | 2014-12-24 | 缪朝晖 | Display control interface circuit |
| CN103778898A (en) * | 2014-02-28 | 2014-05-07 | 帝豪电子（扬州）有限公司 | Dynamic dimming method of liquid crystal display LED backlight |
| CN103778898B (en) * | 2014-02-28 | 2016-07-06 | 帝豪电子（扬州）有限公司 | A kind of liquid crystal display LED backlight dynamic light adjustment device |
| CN107424553A (en) * | 2017-09-22 | 2017-12-01 | 深圳市华星光电技术有限公司 | Scan drive circuit plate and display device |
| CN110191536A (en) * | 2019-05-24 | 2019-08-30 | 亿信科技发展有限公司 | Drive control circuit, drive control chip, integrated packaging component, display system and sparse driving method |
| CN110191536B (en) * | 2019-05-24 | 2021-11-12 | 亿信科技发展有限公司 | Drive control circuit, drive control chip, integrated packaging device, display system and sparse driving method |
| US11393391B2 (en) | 2019-05-24 | 2022-07-19 | Faith Billion Technology Development Limited | Drive control circuit, drive control chip, integrated packaged device, display system, and sparse drive method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YONGJIN HIGH TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: WUXI LED-TRUST PHOTOELECTRON TECHNOLOGY LIMITED Effective date: 20140428 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Wu Inventor before: The inventor has waived the right to be mentioned |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214028 WUXI, JIANGSU PROVINCE TO: 425000 YONGZHOU, HUNAN PROVINCE Free format text: CORRECT: INVENTOR; FROM: REQUEST NOT TO RELEASE THE NAME TO: JIANG WU |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140428 Address after: 425000 Yongzhou City, Hunan province Shuangpai County Industrial Park Patentee after: Yongzhou Key Technology Co., Ltd. Address before: Two district 214028, Science Park, 7 Changjiang Road, Wuxi New District, Jiangsu, 208 Patentee before: Wuxi Led-trust Photoelectron Technology Limited |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141017 |
|
| EXPY | Termination of patent right or utility model |