CN102800283A - LED drive chip - Google Patents
LED drive chip Download PDFInfo
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- CN102800283A CN102800283A CN2012103053016A CN201210305301A CN102800283A CN 102800283 A CN102800283 A CN 102800283A CN 2012103053016 A CN2012103053016 A CN 2012103053016A CN 201210305301 A CN201210305301 A CN 201210305301A CN 102800283 A CN102800283 A CN 102800283A
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Abstract
The invention discloses an LED drive chip which comprises an energy supply module, a signal input module, a processing module, a data drive module and a plurality of pins, wherein the energy supply module is respectively connected with various power supply positive pins, various power supply negative pins, the signal input module, the processing module and the data drive module; the signal input module is respectively connected with various signal input pins and the processing module and used for receiving input signals and transmitting the input signals to the processing module; the processing module is respectively connected with various signal output pins and the data drive module and used for analyzing and processing input signals, intercepting required input signals to generate display data and outputting the rest input signals after intercepting; and the data drive module is respectively connected with various drive output pins and used for distributing display data and outputting the data through various drive output pins.
Description
Technical field
The present invention relates to LED and drive, in particular, a kind of LED chip for driving.
Background technology
Along with constant development of economy; People are more and more stronger to awareness of saving energy; Existing illumination market; Especially a large amount of LED illuminating products have appearred in room lighting market, comprise LED plane lamp, LED fluorescent tube, LED Down lamp, LED shot-light, LED desk lamp with dimmer switch, LED floor-lamp, LED daylight lamp, LED lamp affixed to the ceiling, LED pendent lamp, LED bedside lamp, LED floor lamp, LED desk lamp, LED wall lamp, LED lamp at night etc.
Yet existing LED illuminating product and LED show product, lack adaptive chip for driving, the chip for driving of especially adjusting flexibly according to products scheme.
Therefore, there is defective in prior art, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, the new LED chip for driving is provided, and can flexible Application show product in LED illuminating product and LED.
Technical scheme of the present invention is following: a kind of LED chip for driving, and it comprises energy supply module, signal input module, processing module, data-driven module and number of pins; Said number of pins comprises at least one positive source pin, at least one power cathode pin, at least one driving output pin, at least one signal input pin and at least one signal output pin; Said energy supply module is connected with each positive source pin, each power cathode pin, said signal input module, said processing module, said data-driven module respectively; Said signal input module is connected with each signal input pin, said processing module respectively, is used for receiving inputted signal, is sent to said processing module; Said processing module is connected with each signal output pin, said data-driven module respectively, is used for analyzing, handling input signal, and therefrom its needed input signal of intercepting generates video data, and all the other input signals after the output intercepting; Said data-driven module drives output pin respectively and is connected with each, is used to distribute said video data, drives output pin output through each.
Preferably, said processing module is provided with storage unit.
Preferably, said processing module is provided with codec unit, is used for the said input signal of encrypted transmission.
Preferably, said processing module is provided with the width modulation submodule.
Preferably, said data-driven module is provided with capable driver element, is used for showing the said video data of distribution by row.
Preferably, said data-driven module is provided with the row driver element, is used for showing the said video data of distribution by row.
Preferably, said processing module is provided with frame processing unit, is used for the setting of branch frame and enables the time.
Preferably, said processing module is provided with authenticating unit, is used for when definite said input signal is legal, generating said video data.
Preferably, said processing module and said data-driven module are wholely set.
Preferably, said LED chip for driving has the said positive source pin and the said power cathode pin of equal number.
Each technical characterictic of above-mentioned each technical scheme, the LED chip for driving that is combined to form each other.
Adopt such scheme; The present invention is through energy supply module, signal input module, processing module, data-driven module and pin design; Can adjust the design of LED chip for driving in response to different LED illumination schemes and LED displaying scheme flexibly; Show the field adaptable across LED lighting field and LED, especially can integratedly be arranged in the LED illuminating product to have very high application market and be worth.
Description of drawings
Fig. 1 is the synoptic diagram of one embodiment of the present invention;
Fig. 2 is the structural representation of one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is elaborated.
One embodiment of the present of invention are, and are as shown in Figure 1, a kind of LED chip for driving 10, and it comprises number of pins 100; Preferably, each pin left-right symmetric is as shown in Figure 1, perhaps, and each pin center symmetry.Said number of pins comprises at least one positive source pin, at least one power cathode pin, at least one driving output pin, at least one signal input pin and at least one signal output pin.For example, the LED chip for driving comprises that a positive source pin, a power cathode pin, drive output pin, a signal input pin and a signal output pin; And for example, the LED chip for driving comprises that a positive source pin, a power cathode pin, two drive output pin, a signal input pin and a signal output pin; And for example, the LED chip for driving comprises that two positive source pins, a power cathode pin, three drive output pin, a signal input pin and a signal output pin; And for example, the LED chip for driving comprises two positive source pins, two power cathode pins, 4 wheel driven moving output pin, two signal input pins and two signal output pins; And for example, the LED chip for driving comprises that two positive source pins, two power cathode pins, three drive output pin, three signal input pins and three signal output pins; By that analogy.Preferably, said LED chip for driving has the said positive source pin and the said power cathode pin of equal number.The LED chip for driving can be set to rectangle, for example, and rectangle, square etc.; Perhaps the LED chip for driving can be set to unconventional shape, for example circle etc.
And the LED chip for driving also comprises energy supply module, signal input module, processing module and data-driven module; As shown in Figure 2, said energy supply module is connected with each positive source pin, each power cathode pin, said signal input module, said processing module, said data-driven module respectively; The energy supply module realizes that through each positive source pin, each power cathode pin power supply inserts, thereby power supply is provided for said signal input module, said processing module, said data-driven module.For example, energy supply module connects two positive source pins, two power cathode pins; And for example, the energy supply module connects two positive source pins, a power cathode pin etc., by that analogy.
Said signal input module is connected with each signal input pin, said processing module respectively, is used for receiving inputted signal, is sent to said processing module; Said processing module is connected with each signal output pin, said data-driven module respectively, is used for analyzing, handling input signal, and therefrom its needed input signal of intercepting generates video data, and all the other input signals after the output intercepting; That is to say that processing module obtains after the input signal, its needed part input signal of an intercepting is externally exported remaining input signal through the signal output pin.Like this, just realized the signal cascade transmission.For example, said signal input module connects a signal input pin, and and for example, signal input module connects two signal input pins etc., by that analogy.
Said data-driven module drives output pin respectively and is connected with each, is used to distribute said video data, drives output pin output through each; For example, with the video data of red-light LED, normally make-and-break time through the driving output pin of red-light LED, is controlled opening the time of red-light LED, by that analogy.Preferably, for dwindling small product size, reducing production costs, said processing module and said data-driven module are wholely set.
Among above-mentioned arbitrary embodiment, further, for realizing better handling property; Embodiments of the invention can also be, said processing module is provided with storage unit, and it can adopt modes such as shift register to realize; Be used for temporary input signal, preferred, temporary its needed part input signal.
Among above-mentioned arbitrary embodiment, further, for realizing better encrypted transmission control performance, embodiments of the invention can also be; Said processing module is provided with codec unit, is used for the said input signal of encrypted transmission, that is to say; The input signal of input signal for encrypting, codec unit is at first decoded, and offers processing module to decoded input signal; Perhaps temporary in storage unit, processing module is in analyzing, handle decoded input signal, and therefrom its needed input signal of intercepting generates video data; And, all the other input signals after the intercepting are encrypted output then through codec unit.
Among above-mentioned arbitrary embodiment, further, for realizing better digital control performance, embodiments of the invention can also be, said processing module is provided with the width modulation submodule, utilize the numeral of microprocessor to export mimic channel is controlled; Preferably; Said processing module setting and the feedback unit that the width modulation submodule is connected are used for the output according to actual current waveform adjustment width modulation submodule, for example; Target output current wave and actual current waveform are compared; The break-make control that relatively decides the width modulation submodule through both instantaneous values makes the actual output current waveform in time to adjust, thereby obtains better control effect and display effect.
Among above-mentioned arbitrary embodiment, further, for the type of drive of data, embodiments of the invention can also be that said data-driven module is provided with capable driver element, is used for showing the said video data of distribution by row; Perhaps, said data-driven module is provided with the row driver element, is used for showing the said video data of distribution by row.That is to say that LED chip for driving of the present invention can be adjusted its type of drive and be row type of drive or row type of drive according to the actual requirements, thereby shows that at LED the driving output facet of product is more flexible, convenient, is particularly useful for LED display etc.
Among above-mentioned arbitrary embodiment, further, for improving refreshing frequency; Embodiments of the invention can also be that said processing module is provided with frame processing unit, is used for the setting of branch frame and enables the time; Specifically, input signal generally includes the image information of some frames, adopts frame processing unit to be dispersed in image in two or more refresh cycles in the same frame period; And adjust it and enable the time (OE time), thereby the video data (being generally luma data) of a plurality of times refresh cycle is incorporated into a refresh cycle, like this; Enable the time through a minute frame setting; The luma data of N in the same frame period different refresh cycles is incorporated into a refresh cycle to constitute complete or approximate complete enabling the time, can simplifies video data, thereby realize high refresh rate, high gray, high image quality, high LED utilization factor.
Among above-mentioned arbitrary embodiment, further, for strengthening data presentation control, embodiments of the invention can also be that said processing module is provided with authenticating unit, is used for when definite said input signal is legal, generating said video data; That is to say to have only legal input signal just can show, for example, realize supvr's identification authentication through authenticating unit, is not that the supvr then can't show that product shows through LED illuminating product or LED.
Further, embodiments of the invention can also be each technical characterictic of above-mentioned each embodiment, the LED chip for driving that can implement that is combined to form each other.
Need to prove that above-mentioned each technical characterictic continues combination each other, forms the various embodiment that do not enumerate in the above, all be regarded as the scope of instructions record of the present invention; And, concerning those of ordinary skills, can improve or conversion, and all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (10)
1. a LED chip for driving is characterized in that, comprises energy supply module, signal input module, processing module, data-driven module and number of pins;
Said number of pins comprises at least one positive source pin, at least one power cathode pin, at least one driving output pin, at least one signal input pin and at least one signal output pin;
Said energy supply module is connected with each positive source pin, each power cathode pin, said signal input module, said processing module, said data-driven module respectively;
Said signal input module is connected with each signal input pin, said processing module respectively, is used for receiving inputted signal, is sent to said processing module;
Said processing module is connected with each signal output pin, said data-driven module respectively, is used for analyzing, handling input signal, and therefrom its needed input signal of intercepting generates video data, and all the other input signals after the output intercepting;
Said data-driven module drives output pin respectively and is connected with each, is used to distribute said video data, drives output pin output through each.
2. according to the said LED chip for driving of claim 1, it is characterized in that said processing module is provided with storage unit.
3. according to the said LED chip for driving of claim 2, it is characterized in that said processing module is provided with codec unit, be used for the said input signal of encrypted transmission.
4. according to the said LED chip for driving of claim 3, it is characterized in that said processing module is provided with the width modulation submodule.
5. according to the said LED chip for driving of claim 4, it is characterized in that said data-driven module is provided with capable driver element, be used for showing the said video data of distribution by row.
6. according to the said LED chip for driving of claim 4, it is characterized in that said data-driven module is provided with the row driver element, be used for showing the said video data of distribution by row.
7. according to the arbitrary said LED chip for driving of claim 1 to 6, it is characterized in that said processing module is provided with frame processing unit, be used for the setting of branch frame and enable the time.
8. according to the said LED chip for driving of claim 7, it is characterized in that said processing module is provided with authenticating unit, be used for when definite said input signal is legal, generating said video data.
9. said according to Claim 8 LED chip for driving is characterized in that, said processing module and said data-driven module are wholely set.
10. according to the said LED chip for driving of claim 9, it is characterized in that it has the said positive source pin and the said power cathode pin of equal number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103053016A CN102800283A (en) | 2012-08-24 | 2012-08-24 | LED drive chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103053016A CN102800283A (en) | 2012-08-24 | 2012-08-24 | LED drive chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102800283A true CN102800283A (en) | 2012-11-28 |
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| CN2012103053016A Pending CN102800283A (en) | 2012-08-24 | 2012-08-24 | LED drive chip |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761960B1 (en) * | 2006-05-18 | 2007-09-28 | 주식회사 대한트랜스 | Apparatus for operating high power led using pwm(pulse width modulation) |
| CN201233711Y (en) * | 2008-07-21 | 2009-05-06 | 北京巨数数字技术开发有限公司 | Single line cascade chip for lamp point display |
| CN201307949Y (en) * | 2008-10-22 | 2009-09-09 | 北京巨数数字技术开发有限公司 | Single-wire serial transmission drive chip and application circuit |
| CN201323044Y (en) * | 2008-11-20 | 2009-10-07 | 北京巨数数字技术开发有限公司 | Control chip of LED display screen with 44 pins |
| CN201355608Y (en) * | 2008-12-02 | 2009-12-02 | 北京巨数数字技术开发有限公司 | Control chip of LED display screen |
| CN101995005A (en) * | 2009-08-10 | 2011-03-30 | 友达光电股份有限公司 | Back light module and liquid crystal display system using same |
-
2012
- 2012-08-24 CN CN2012103053016A patent/CN102800283A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100761960B1 (en) * | 2006-05-18 | 2007-09-28 | 주식회사 대한트랜스 | Apparatus for operating high power led using pwm(pulse width modulation) |
| CN201233711Y (en) * | 2008-07-21 | 2009-05-06 | 北京巨数数字技术开发有限公司 | Single line cascade chip for lamp point display |
| CN201307949Y (en) * | 2008-10-22 | 2009-09-09 | 北京巨数数字技术开发有限公司 | Single-wire serial transmission drive chip and application circuit |
| CN201323044Y (en) * | 2008-11-20 | 2009-10-07 | 北京巨数数字技术开发有限公司 | Control chip of LED display screen with 44 pins |
| CN201355608Y (en) * | 2008-12-02 | 2009-12-02 | 北京巨数数字技术开发有限公司 | Control chip of LED display screen |
| CN101995005A (en) * | 2009-08-10 | 2011-03-30 | 友达光电股份有限公司 | Back light module and liquid crystal display system using same |
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| C06 | Publication | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518000 Guangdong province Shenzhen city Longgang District Guanlan Street South Ring concept yishida Science Park Applicant after: Shenzhen Eastar Electronic Co., Ltd. Address before: 518000 Guangdong province Shenzhen city Longgang District Guanlan Street South Ring concept yishida Science Park Applicant before: Shenzhen EASTAR Electronic Co., Ltd. |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Guanlan street of Longhua city of Shenzhen province Guangdong District 518000 south ring concept yishida Science Park Applicant after: Shenzhen Eastar Electronic Co., Ltd. Address before: 518000 Guangdong province Shenzhen city Longgang District Guanlan Street South Ring concept yishida Science Park Applicant before: Shenzhen Eastar Electronic Co., Ltd. |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121128 |