CN102290029B - A kind of driving chip of pointwise adjustment - Google Patents
A kind of driving chip of pointwise adjustment Download PDFInfo
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- CN102290029B CN102290029B CN201110130600.6A CN201110130600A CN102290029B CN 102290029 B CN102290029 B CN 102290029B CN 201110130600 A CN201110130600 A CN 201110130600A CN 102290029 B CN102290029 B CN 102290029B
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Abstract
The invention discloses the driving chip of a kind of pointwise adjustment, comprising the supplemental characteristic for automatically reading each LED in outside first storage unit, generate the automatic read module of parametric data table; According to parametric data table, generate the voltage transitions tables of data of each LED and the processing module of opening time table; Input the first video control signal, and according to voltage transitions tables of data and opening time table, change output voltage and the opening time of the first video control signal, obtain the modular converter of the second video control signal; Input the signal checking data pre-seted, according to display data and signal checking data, generate check code, and by check code, the second video control signal is verified, obtain the correction verification module of the 3rd video control signal; According to the 3rd video control signal, drive the driver module of outside each LED.The present invention has pointwise adjustment function, and adjustment degree of accuracy is high, and it is good that each LED adjusts display effect.
Description
Technical field
The present invention relates to the Driving technique of lighting device, particularly relate to the driving chip of a kind of pointwise adjustment.
Background technology
In the stage now, pursue healthy in the whole world, environmental protection pressure, in the great situation of energy crisis, semiconductor lighting by universally acknowledged be a kind of important channel of health energy-saving environment protective, expand its range of application just at faster speed.
In prior art, the driving chip being applied to LED display and LED decorations generally only has driving function, can be used for constant current or constant voltage drives each LED, the brightness point by point adjustment function of each LED is realized as needed, then need the functional chip installing other, by other functional chips to after video control signal adjustment, re-send to each driving chip, to drive each LED, so, relatively complicated owing to installing connection line, and, video control signal after adjustment is in the process being transferred to driving chip, due to the connection of circuit, the reasons such as line fault, the degree of accuracy of Adjustment effect is easily caused to reduce, thus do not reach default Adjustment effect.
Therefore, prior art existing defects, needs to improve.
Summary of the invention
Technical matters to be solved by this invention is, provides one to have pointwise adjustment function, and adjustment degree of accuracy is high, and each LED adjusts the driving chip of the good pointwise adjustment of display effect.
Technical scheme of the present invention is as follows: a kind of driving chip of pointwise adjustment, wherein, comprises the automatic read module of integrated setting, processing module, modular converter, correction verification module and driver module; Described automatic read module arranges the first port, is connected with the first storage unit of outside, for automatically reading the supplemental characteristic of each LED in described first storage unit, generating parametric data table, being sent to described processing module; Described processing module arranges the second port, for inputting the display data of each LED, and according to described parametric data table, generating voltage transitions tables of data and the opening time table of each LED, being sent to described modular converter; Described modular converter arranges the 3rd port, for inputting the first video control signal, and according to described voltage transitions tables of data and described opening time table, change output voltage and the opening time of described first video control signal, obtain the second video control signal, be sent to described correction verification module; Described correction verification module arranges the 4th port, for inputting the signal checking data pre-seted, and according to described display data and described signal checking data, generate check code, and, by described check code, described second video control signal is verified, obtain the 3rd video control signal, be sent to described driver module; Described driver module, according to described 3rd video control signal, drives outside each LED.
Being applied to technique scheme, in described driving chip, also comprising a detection module, be connected with each LED of outside, for detecting each LED, generating described display data.
Be applied to each technical scheme above-mentioned, in described driving chip, described automatic read module arranges automatic promoter module, after being communicated with described driving chip power supply, carry out self-inspection, the described automatic read module of automatic startup after self-inspection completes.
Be applied to each technical scheme above-mentioned, in described driving chip, also comprise the second storage unit, described second storage unit and each module integration are arranged, for storing the supplemental characteristic of each LED in described first storage unit, described parametric data table, described voltage transitions tables of data and described opening time table.
Be applied to each technical scheme above-mentioned, in described driving chip, described processing module set handling submodule, described process submodule is according to described display data, calculate the assorted LED quantity that described driving chip connects, and according to described supplemental characteristic, generate described voltage transitions tables of data.
Be applied to each technical scheme above-mentioned, in described driving chip, described correction verification module comprises code building submodule and syndrome module, and described code building submodule is used for showing data according to described signal checking data check, and generates described check code; Described syndrome module is used for according to described second video control signal of described check code verification.
Be applied to each technical scheme above-mentioned, in described driving chip, also arrange one be connected with described correction verification module pre-set module, for presetting described signal checking data, and input to described correction verification module.
Be applied to each technical scheme above-mentioned, in described driving chip, described modular converter comprises step-down submodule and boosting submodule, for according to described voltage transitions tables of data, reduces or raise the output voltage of described second video control signal.
Be applied to each technical scheme above-mentioned, in described driving chip, described drive module setting at least three drives passage, and each passage that drives is connected with assorted LED respectively, and each drives channel serial to drive coupled each LED.
Be applied to each technical scheme above-mentioned, in described driving chip, described driver module also arranges a driving distribution sub module, for according to the driving number of channels arranged, distributes described 3rd video control signal.
Adopt such scheme, the present invention is by the automatic read module of integrated setting in driving chip, processing module, modular converter, correction verification module and driver module; First port being set by described automatic read module, for automatically reading the supplemental characteristic of each LED in outside first storage unit, generating parametric data table; The display data that second port inputs each LED are set by described processing module, and according to described parametric data table, generate voltage transitions tables of data and the opening time table of each LED; 3rd port is set by described modular converter and inputs the first video control signal, and according to described voltage transitions tables of data and described opening time table, be converted to the second video control signal; The signal checking data that the input of 4th port pre-sets are set by described correction verification module, generate check code, described second video control signal is verified, obtains the 3rd video control signal; Finally by described driver module according to described 3rd video control signal, drive outside each LED.Thus make described driving chip have pointwise adjustment function, can by the driving voltage of the connected each LED of adjustment and lighting time, pointwise adjustment is carried out to lighting time of each LED and brightness, each LED can be lighted under specific voltage and special time, and carry out display video image according to each video control signal, thus it is high to reach adjustment degree of accuracy, each LED adjusts the effect shown.
Accompanying drawing explanation
Fig. 1 is a kind of connection diagram of the specific embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, present embodiments provide the driving chip of a kind of pointwise adjustment, described driving chip is for driving connected each LED, can according to each LED supplemental characteristic, carry out pointwise and adjust each LED, each LED can be lighted at specific voltage with under the specific time, and carry out display video image according to each video control signal, adjustment degree of accuracy is high, and adjustment display effect is good.
Described driving chip comprises the automatic read module of integrated setting, processing module, modular converter, correction verification module and driver module.
Wherein, described automatic read module arranges the first port, as, described driving chip can arrange the first pin as described first port, described first port is connected with the first outside storage unit by circuit, when being communicated with the power supply of described driving chip, described automatic read module then reads the supplemental characteristic of each LED in described first storage unit automatically, wherein, the supplemental characteristic of each LED comprises the standard display voltage of each LED, standard display brightness, standard display wavelength etc., and, described automatic read module also generates corresponding parametric data table according to described supplemental characteristic, and described parametric data table is sent to described processing module, wherein, the assorted LED that described parametric data table is connected with described driving chip becomes relation one to one.
And, described processing module arranges the second port, as, described driving chip can arrange the second pin as described second port, described second port is for inputting the display data of each LED, described display data can be carried out detection by outside detecting unit to each LED and be obtained, or, obtained by other approach, after described processing module obtains the display data of each LED, and according to described parametric data table, generate voltage transitions tables of data and the opening time table of each LED, voltage transitions tables of data described in it is corresponding with the display voltage of each LED, described opening time table is corresponding with the lighting time of each LED, described voltage transitions tables of data and described opening time table are sent to described modular converter by described processing module.
Such as, described processing module can set handling submodule, described process submodule is according to the described display data of each LED, calculate the assorted LED quantity be connected with described driving chip, as, calculate the red LED be connected with described driving chip respectively, green LED, and the quantity of blue led, and calculate the connected mode that assorted LED is parallel connection or series connection each other, and the standard display voltage corresponding according to assorted LED, standard display brightness, the supplemental characteristics such as standard display wavelength, generate each LED institute described voltage transitions tables of data one to one, and the described opening time table of each LED is obtained according to each LED connected mode.
And, described modular converter arranges the 3rd port, as, described driving chip can arrange three-prong as described 3rd port, wherein, described 3rd port can be connected with the control device of outside, by described control device, vision signal is converted to described first video control signal, and input to described modular converter, the described voltage transitions tables of data that described modular converter receives according to it, change the voltage of described first video control signal, make its voltage exporting described first video control signal consistent with the standard input voltage of each LED, and, according to described opening time table, by the opening time of described first video control signal of described modular converter conversion, make each LED when display video control signal, its ignition voltage and lighting time show voltage with standard and standard lighting time consistent, after the first video control signal described in described module processing, obtain the second video control signal, and be sent to described correction verification module.
Such as, described modular converter can comprise a step-down submodule and a boosting submodule, described step-down submodule and described boosting submodule can according to described voltage transitions tables of data, reduce or raise the output voltage of described video control signal, wherein, when the numerical value of described voltage transitions tables of data be on the occasion of time, the output voltage of described second video control signal is then reduced by described step-down submodule, or, when the numerical value of described voltage transitions tables of data is negative value, then raised the output voltage of described second video control signal by described boosting submodule.
And, described correction verification module arranges the 4th port, as, described driving chip can arrange the 4th pin as described 4th port, described 4th port is for inputting the signal checking data pre-seted, and according to described display data and described signal checking data, generate check code, by described check code, described second video control signal is verified, obtain the 3rd video control signal after verifying, and described 3rd video control signal is sent to described driver module, described check code may be used for described second video control signal of verification and whether there is loss of data, or, verify described second video control signal and whether there is data distortion, and repair each data of described second video control signal in time, obtain described 3rd video control signal.
Such as, described correction verification module comprises code building submodule and syndrome module, and wherein, described code building submodule can show data according to described signal checking data check, and, according to check results, generate described check code; Further, then come according to described check code by described syndrome module, verify described second video control signal, repair each data of described second video control signal in time, obtain described 3rd video control signal.
After described driver module receives described 3rd video control signal, described 3rd video control signal is sent to outside each LED, drives each LED, make each LED according to described 3rd video control signal, described video image can be shown; After voltage transitions and opening time conversion, namely can adjust one by one the brightness of each LED and lighting time, adjustment degree of accuracy is high, makes each LED have better display effect.
Be applied to each example of example, described driving chip also comprises a detection module, and described detection module is connected with outside each LED, is detected the display parameter certificate of each LED by described detection module, and according to testing result, generate described display data, so, by arranging a detection module described driving chip is inner integrated, the display data of each LED can be generated by described detection module direct-detection, make described drive singal also have measuring ability, syndeton is simple, and effect is better.
Or, be applied to each example of example, described driving chip can also arrange the second storage unit, described second storage unit and each module integration are arranged, by the supplemental characteristic of each LED in the first storage unit described in described second cell stores, described parametric data table, described voltage transitions tables of data and described opening time table, namely described second storage unit by arranging replaces described first storage unit to store each data, so, make described driving chip without the need to being connected with described first storage unit of outside, just directly described second storage unit can be set by its inside and store each data, store and use also convenient.
Or, combine with above-mentioned each example, described automatic read module is provided with automatic promoter module, described automatic promoter module is after the described driving chip power supply of connection, self-inspection is carried out to described automatic read module, wherein, can described in self-inspection automatically read module whether there is connection fault, whether its inner each parts are complete, whether the connection each other of each parts is correct, after the self-inspection of described automatic promoter module completes, then automatically start described automatic read module, thus guarantee the normal work of described automatic read module.
Or, be applied to each example of example, described driving chip also arrange one be connected with described correction verification module pre-set module, the described module that pre-sets can according to the display situation of reality, preset described signal checking data, such as, according to the connection state of each connection line, each LED connection each other and the video control signal etc. of each LED display, pre-set described signal checking data, and described signal checking data are inputed to described correction verification module.
Or, combine with above-mentioned each example, the driving passage of described drive module setting more than three or three, such as, arrange three and drive passage, wherein, comprising red LED drives passage, green LED to drive passage and blue led to drive passage, the assorted LED that each driving passage is corresponding with it is respectively connected, further, each drives channel serial to drive coupled each LED, and namely each each LED driving passage to connect is connected in series, such as, channel attached multiple red LED is driven to be connected in series with red LED.
Or, combine with above-mentioned each example, described driver module can also arrange a driving distribution sub module, described driving distribution sub module and each driving expanding channels, for driving the quantity of passage according to arranging, distribute described 3rd video control signal, as, arrange three and drive passage, then described 3rd video control signal can be assigned as three groups of video control signals, and each group of video control signal is sent in the driving passage corresponding to it respectively, make assorted LED according to described 3rd video control signal of correspondence, described video image can be shown.
It should be noted that, the mutual combination of above-mentioned each technical characteristic, forms each embodiment, should be considered as the scope that instructions of the present invention is recorded.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1. a driving chip for pointwise adjustment, is characterized in that, comprises the second storage unit of integrated setting, automatically read module, processing module, modular converter, correction verification module and driver module;
Described automatic read module arranges the first port, is connected with the second storage element, for automatically reading the supplemental characteristic of each LED in described second storage element, generating parametric data table, being sent to described processing module;
Described processing module arranges the second port, for inputting the display data of each LED, and according to described parametric data table, generating voltage transitions tables of data and the opening time table of each LED, being sent to described modular converter;
Described modular converter arranges the 3rd port, for inputting the first video control signal, and according to described voltage transitions tables of data and described opening time table, change output voltage and the opening time of described first video control signal, obtain the second video control signal, be sent to described correction verification module;
Described correction verification module arranges the 4th port, for inputting the signal checking data pre-seted, and according to described display data and described signal checking data, generate check code, and, by described check code, described second video control signal is verified, obtain the 3rd video control signal, be sent to described driver module;
Described driver module, according to described 3rd video control signal, drives outside each LED;
Described second storage unit and each module integration are arranged, for storing the supplemental characteristic of each LED, described parametric data table, described voltage transitions tables of data and described opening time table;
Described processing module set handling submodule, described process submodule is according to the described display data of each LED, calculate the assorted LED quantity be connected with described driving chip, and calculate the connected mode that assorted LED is parallel connection or series connection each other, and the supplemental characteristic corresponding according to assorted LED, generate each LED institute described voltage transitions tables of data one to one, and obtain the described opening time table of each LED according to each LED connected mode.
2. driving chip according to claim 1, is characterized in that, also comprises a detection module, is connected with each LED of outside, for detecting each LED, generates described display data.
3. driving chip according to claim 1, is characterized in that, described automatic read module arranges automatic promoter module, after being communicated with described driving chip power supply, carry out self-inspection, the described automatic read module of automatic startup after self-inspection completes.
4. driving chip according to claim 1, it is characterized in that, described correction verification module comprises code building submodule and syndrome module, and described code building submodule is used for showing data according to described signal checking data check, and generates described check code; Described syndrome module is used for according to described second video control signal of described check code verification.
5. driving chip according to claim 4, is characterized in that, also arrange one be connected with described correction verification module pre-set module, for presetting described signal checking data, and input to described correction verification module.
6. driving chip according to claim 1, is characterized in that, described modular converter comprises step-down submodule and boosting submodule, for according to described voltage transitions tables of data, reduces or raise the output voltage of described second video control signal.
7. according to the arbitrary described driving chip of claim 1 to 6, it is characterized in that, described drive module setting at least three drives passage, and each passage that drives is connected with assorted LED respectively, and each drives channel serial to drive coupled each LED.
8. driving chip according to claim 7, is characterized in that, described driver module also arranges a driving distribution sub module, for according to the driving number of channels arranged, distributes described 3rd video control signal.
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| CN201110130600.6A CN102290029B (en) | 2011-05-19 | 2011-05-19 | A kind of driving chip of pointwise adjustment |
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| CN201110130600.6A CN102290029B (en) | 2011-05-19 | 2011-05-19 | A kind of driving chip of pointwise adjustment |
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| CN102290029B true CN102290029B (en) | 2015-11-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101192362A (en) * | 2006-12-01 | 2008-06-04 | 康佳集团股份有限公司 | LEDLED display screen on site single-point calibration device and its method |
| CN101515438A (en) * | 2009-03-18 | 2009-08-26 | 北京中庆微数字设备开发有限公司 | Display system of point-to-point brightness control and a method |
| CN201413624Y (en) * | 2009-04-17 | 2010-02-24 | 晶能光电（江西）有限公司 | LED backlight LCD display system available for point-to-point alignment and display thereof |
| CN101814259A (en) * | 2009-11-03 | 2010-08-25 | 北京巨数数字技术开发有限公司 | LED display system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101192362A (en) * | 2006-12-01 | 2008-06-04 | 康佳集团股份有限公司 | LEDLED display screen on site single-point calibration device and its method |
| CN101515438A (en) * | 2009-03-18 | 2009-08-26 | 北京中庆微数字设备开发有限公司 | Display system of point-to-point brightness control and a method |
| CN201413624Y (en) * | 2009-04-17 | 2010-02-24 | 晶能光电（江西）有限公司 | LED backlight LCD display system available for point-to-point alignment and display thereof |
| CN101814259A (en) * | 2009-11-03 | 2010-08-25 | 北京巨数数字技术开发有限公司 | LED display system |
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Inventor after: Chen Lunqiang Inventor after: Chen Dongwen Inventor before: Shang Song |
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Effective date of registration: 20170503 Address after: 526020 building, two floor, zone 6, west side of Duanzhou Road,, Duanzhou District, Zhaoqing, Guangdong Patentee after: ZHAOQING BOSHIXIN ELECTRONIC TECHNOLOGY Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170503 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: Futian District Che Kung Temple Tairan industrial zone of Shenzhen city in Guangdong province 518040 211 706 Patentee before: Shenzhen Zhongqingwei Technology Development Co.,Ltd. |
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