CN102339567B - LED electric lighting board and its driving method - Google Patents
LED electric lighting board and its driving method Download PDFInfo
- Publication number
- CN102339567B CN102339567B CN201110051013.8A CN201110051013A CN102339567B CN 102339567 B CN102339567 B CN 102339567B CN 201110051013 A CN201110051013 A CN 201110051013A CN 102339567 B CN102339567 B CN 102339567B
- Authority
- CN
- China
- Prior art keywords
- led
- led element
- region
- control signal
- electrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/20—Illuminated signs; Luminous advertising with luminescent surfaces or parts
- G09F13/22—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent
- G09F2013/222—Illuminated signs; Luminous advertising with luminescent surfaces or parts electroluminescent with LEDs
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0202—Addressing of scan or signal lines
- G09G2310/0221—Addressing of scan or signal lines with use of split matrices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Led Devices (AREA)
- Control Of El Displays (AREA)
Abstract
The invention discloses an LED electric lighting board for driving a plurality of LED elements in a dynamic driving way, comprising an LED module, wherein the LED module is divided and a LED element is arranged, thus m*n LED elements are arranged in each area, m, n are natural numbers larger than 2; a controller for generating a selection control signal, thus each area is simultaneously electrically connected with any LED element; m*n selectors connected with one LED element in each area to response to the selection control signal and simultaneously electrically connected with the connected LED elements in 1/(m*n) period; an active circuit for supplying driving data to the LED elements electrically connected with the selector.
Description
Technical field
The present invention relates to a kind of LED electrical tabula rasa and driving method thereof, particularly a kind of can the LED electrical tabula rasa of scintillation of minimizes dynamic driving LED luminous plate and driving method thereof.
Background technology
The outdoor luminous plate of prior art, in order to advertising results etc., is arranged on roof or exterior wall etc. with large-scale state.
The kind of outdoor luminous plate has light emitting diode (Light Emitting Diode, hereinafter referred to as " LED ") luminous plate, FDT (Fluorescent Discharge Tube, fluorescence discharging tube) luminous plate, CRT (Cathode Ray Tube, cathode-ray tube (CRT)) luminous plate and LCD (Liquid Crystal Display, liquid crystal display) luminous plate etc.
FDT luminous plate is as the luminous plate of fluorescence discharge form, and manufacturing cost is high, difficult management, seldom uses recently; CRT luminous plate is as the luminous plate of cathodic discharge form, and manufacturing cost the same as FDT luminous plate is high, and weight is large, less uses.On the other hand, LCD luminous plate, as the luminous plate using liquid crystal material, is extensively utilized though existing, but not only needs high manufacturing cost, and formation large is also had any problem.
On the contrary, LED electrical tabula rasa is the luminous plate utilizing LED, and manufacturing cost is low, manageable, and not only the life-span is long, and large is also easy, occupies the high share of more than 90% in outdoor luminous plate.And LED electrical tabula rasa uses the LED of self luminescence, so have the advantage that power consumption is little, response speed is very fast.
The type of drive of this LED electrical tabula rasa is divided into static state (Static) type of drive and dynamic (Dynamic) type of drive.
Static drive mode is configured with source circuit by 1: 1 in each LED element, when the formation of LED element comprises multiple LED unit element, each unit element is configured with source circuit by 1: 1, because by lighting of each LED element of Related Active control circui or each LED unit element, so control than being easier to, there is the advantage that can not produce interference tones signal.But, because must have the active circuit with LED element or the same quantity of LED unit element, its formation can only be complicated, so have the high shortcoming of manufacturing cost.
On the contrary, dynamic driving mode laterally or is longitudinally combined LED element, and each group is configured with source circuit, and press configuration sequence selection LED group by selector switch, and Shi Ge LED group lights successively.
Namely, dynamic driving mode is the mode to lighting after LED electrical tabula rasa entire scan one-period, compared with static drive mode, do not need the active circuit of too many quantity, so manufacturing cost is low, because only lighting selected LED group successively, so have the advantage of saving power consumption, but light all LED successively within the short period, so there is the problem producing scintillation.
During by camera shooting LED electrical tabula rasa, occur that black periodic line is also the result of this scintillation.
Fig. 1 is the schematic diagram of the LED electrical tabula rasa representing dynamic driving mode in prior art, illustrates that LED element 10 configures and the example in 1/16 cycle of lighting after selecting successively 16 row in one-period with the form of dot matrix.
With reference to Fig. 1, in the dynamic drive method of prior art, LED element 10 is selected by selector switch portion 20 with behavior unit, provides driving data by active circuit portion 30 to the position of respectively itemizing of LED element 10.
At this moment, selector switch portion 20 comprises 16 selector switchs be connected with each row, and 30, active circuit portion comprises 16 active circuits be connected with each row.
That is, in the dynamic driving mode of prior art, when LED element 10 is selected in selector switch portion 20 successively, the driving data in active circuit portion 30 is supplied to selected LED element 10.
Therefore, the LED electrical tabula rasa of dynamic driving mode in prior art, its shape is the closer to maximization, and the travel distance that one-period domestic demand will be lighted is then larger, thus scintillation can only become serious.
Summary of the invention
Propose the present invention to improve the problems referred to above, object is to provide a kind of thorough shortening to light travel distance, minimize LED electrical tabula rasa and the driving method thereof of the dynamic driving mode of scintillation.
To achieve these goals, the LED electrical tabula rasa of one embodiment of the invention, as the LED electrical tabula rasa driving multiple LED element in dynamic driving mode, comprising:
LED module, partition is equipped with described LED element thereon, makes each region possess m × n LED element, and wherein, m, n are the natural number of more than 2;
Control part, it produces selects control signal, and each described region is electrically connected to any one LED element simultaneously;
M × n selector switch, it is respectively connected with a LED element in each described region, in response to described selection control signal, the LED element be connected in the cycle at 1/ (m × n) is electrically connected simultaneously; And
Active circuit, the LED element to the described selector switch of electrical connection provides driving data.
Above-mentioned each selector switch every 1/ (m × n) cycle in one-period just works once.
Above-mentioned control part produces above-mentioned selection control signal, makes LED element in above-mentioned each region be electrically connected by configuration sequence and light.
Above-mentioned control part produces above-mentioned selection control signal, makes LED element in described each region be electrically connected brokenly and light.
Above-mentioned control part produces above-mentioned selection control signal, makes LED element in above-mentioned each region be electrically connected by zigzag or inverse configuration sequence in a zigzag and light.
Above-mentioned control part produces above-mentioned selection control signal, makes the order of lighting of LED element in above-mentioned each region have cyclical variation.
Above-mentioned LED element is configured to comprise: at least one red LED unit element, at least one green LED unit element and at least one blue led unit element.
LED electrical tabula rasa according to other embodiments of the invention comprises:
LED module, is configured with multiple LED element thereon, and the formation of LED element comprises x LED unit element, and wherein, x is the natural number of more than 2;
Control part, it produces selects control signal, and each region is electrically connected any one LED element simultaneously;
X selector switch, it is respectively connected with a LED element in each described region, in response to described selection control signal, makes connected LED element be electrically connected within the 1/x cycle simultaneously; And
Active circuit, according to described selector switch, the LED element to electrical connection provides driving data.
Above-mentioned control part produces described selection control signal, LED unit element in described each region is lighted by configuration sequence or irregularly to light.
According to the driving method of the LED electrical tabula rasa of the embodiment of the present invention, the wherein multiple LED element of segmentation configuration in described LED electrical tabula rasa, make each region have m × n LED element, m, n are the natural number of more than 2, said method comprising the steps of:
Produce and select control signal, it makes each described region be electrically connected any one LED element simultaneously;
By m × n the selector switch be respectively connected with a LED element in each described region, in response to described selection control signal, within the 1/x cycle, LED element is electrically connected simultaneously in each described region; And
According to described selector switch, the LED element to electrical connection provides driving data.
In the driving method of above-mentioned LED electrical tabula rasa, produce above-mentioned selection control signal, to make in above-mentioned each region LED element by being electrically connected by configuration sequence and lighting.
In the driving method of above-mentioned LED electrical tabula rasa, produce above-mentioned selection control signal, make LED element in above-mentioned each region be electrically connected brokenly and light.
According to the present invention, LED element is carried out division driving by region, each region has a LED element to light simultaneously/extinguish, and shortens in one-period and lights travel distance and area, thus have the effect greatly reducing scintillation.
Meanwhile, according to the present invention, the LED element periodically in each region of irregular change light order, by the prediction of lighting systematicness repeatedly, the scintillation by eye perceives can be minimized.
Moreover, according to the present invention, when the unit LED element of multiple color is configured to microprocessor, a region is given to a microprocessor LED element, light in order in region, even so dynamic driving mode, also there is the actual effect by naked eyes perception static state.
Accompanying drawing explanation
Fig. 1 is the accompanying drawing of the LED electrical tabula rasa representing type of drive in prior art;
Fig. 2 a, 2b, 2c are the accompanying drawings of the LED electrical tabula rasa of dynamic driving mode according to the embodiment of the present invention;
Fig. 3 a and Fig. 3 b is the accompanying drawing of the configuration example representing each color of LED element;
Fig. 4 a and Fig. 4 b represents that in region, LED element lights the accompanying drawing of order example;
Fig. 5 a and Fig. 5 b represents by lighting accompanying drawing sequentially in a zigzag, against zigzag;
Fig. 6 is the accompanying drawing of the dynamic driving mode represented according to other embodiments of the invention.
Embodiment
Except above-mentioned purpose, with reference to the detailed description of the preferred embodiment of the invention and the accompanying drawing object that the present invention may be better understood and advantage.
Below, the preferred embodiment of the invention is described in detail by referring to Fig. 2 a to Fig. 6.
First, the term used in this specification and claims book or vocabulary can not be interpreted as the meaning on normally used or dictionary, inventor is to the invention of oneself, in order to the method with the best is described, in line with the principle suitably defining term concept, should be interpreted as meeting the technology of the present invention thought and concept.Therefore, on the embodiment recorded in this instructions and accompanying drawing, illustrated formation is most preferred embodiment of the present invention, and the technology of the present invention thought can not be replaced, so for the application's time point, be interpreted as having the various analogue and version that can replace these.
Fig. 2 a is the accompanying drawing of the LED electrical tabula rasa represented according to the embodiment of the present invention.
In Fig. 2 a, comprise LED module 100, selector switch portion 200 and active circuit portion 300 according to the LED electrical tabula rasa of the embodiment of the present invention.
First, LED module 100 is made up of with the configuration of dot matrix (Dot Matrix) form multiple LED element 110, LED element 110 division driving, has made laterally 4 regions and vertical 4 regions.
Here, the quantity of the LED element 110 configured in LED module 100 and divided region quantity, can be formed with various state as required.
In Fig. 2 a, LED module 100 is configured by the form of 16 × 16, LED element 110 can by laterally 4, vertical 4 totally 16 region L1 ~ L16 split.
In Fig. 2 a, the cut zone L1 ~ L16 of illustrated LED module 100 simply represents on Fig. 2 b, and Fig. 2 c understands to help, and represents the accompanying drawing of first area L1 and selector switch 201 ~ 216, first active circuit 301 structure in illustrated region L1 ~ L16 in Fig. 2 a.
Selector switch portion 200 is included in the selector switch 201 ~ 216 that each region is respectively connected jointly with a LED element 110.
Therefore, the quantity of selector switch 201 ~ 216 should be the quantity of the LED element 110 be included in a region, in Fig. 2 a, comprises 16 LED element 110 in each region L1 ~ L16, so preparation has 16 selector switchs 201 ~ 216 altogether.
At this moment, the LED element 110 be connected with each selector switch 201 ~ 216 can not repeat to be connected with other selector switchs 201 ~ 216.
Such as, first selector 201 is connected jointly by with the first LED element D1 of each region L1 ~ L16, and second selector 202 is connected jointly with the second LED element D2 of each region L1 ~ L16.
This selector switch 201 ~ 216 is made up of switch structure, controls the electrical connection with LED element 110.Here, if electrical connection refers to the charged guiding path preparing to have LED element 110, according to the driving data that active circuit 301 ~ 316 provides, LED element 110 can be lighted.
That is, by the work of selector switch 201 ~ 216, in the LED element D1 ~ D16 of each region L1 ~ L16, the LED element that will light is selected.
As Fig. 2 a, first selector 201 is electrically connected the first LED element D1 be connected with oneself in the LED element D1 ~ D16 of each region L1 ~ L16 simultaneously.Identical therewith, second selector 202 is electrically connected the second LED element D2 in the LED element D1 ~ D16 of each region L1 ~ L16 simultaneously.
In the present invention, can possess the control part 400 producing and select control signal, it controls the running of each selector switch 201 ~ 216.
Control part 400 produces selects control signal to be also provided to selector switch 201 ~ 216, described selection control signal as any one in running selector switch 201 ~ 216 to make the signal that in every region L1 ~ L16, any one LED element 110 is electrically connected simultaneously.
At this moment, select control signal that each selector switch 201 ~ 216 every 1/16 cycle in one-period is just worked once, make all LED element D1 ~ D16 of each region L1 ~ L16 in one-period all be selected once and light.
Therefore, based on the job order of the selector switch 201 ~ 216 of this selection control signal, determine that LED element D1 ~ D16's in each region L1 ~ L16 lights order.
This control part 400 can be formed independent of selector switch portion 200, also can be integrated in selector switch portion 200.
On the other hand, active circuit portion 300 comprises the multiple active circuits 301 ~ 316 connected by each region L1 ~ L16.
That is, each active circuit 301 ~ 316 is connected in LED module 100 and arranges in pairs or groups by 1: 1 with each region L1 ~ L16 and be configured in the LED element D1 ~ D16 in the L1 ~ L16 of region, and provides driving data.
In Fig. 2 a, LED module 100 is divided into 16 region L1 ~ L16, and preparation has 16 active circuits 301 ~ 316 altogether.
On concrete, in the LED element D1 ~ D16 in each region L1 ~ L16, when have selected by selector switch 201 ~ 216 LED element that will light, each active circuit 301 ~ 316 provides associated drives data to each selected LED element, makes it to light.
In embodiment as this Fig. 2 a, the quantity of cut zone is 16 altogether, in one-period, 16 selector switchs 201 ~ 206 select the LED element D1 ~ D16 that will light according to selecting control signal, 16 active circuits 301 ~ 316 provide driving data to selected LED element, and LED electrical tabula rasa is finally driven within 1/16 cycle.
That is, determine drive cycle according to the quantity of cut zone in the present invention, the cycle at this moment becomes " 1/ cut zone quantity ".
According to the dynamic driving mode of Fig. 1 prior art, in one-period, LED element 10 is lighted with behavior unit, so its travel distance will reach 16 row simultaneously in LED electrical tabula rasa.
But, according to Fig. 2 a in the present invention, light while segmenting by region, the travel distance in one-period only has 4 row.
Therefore, with regard to the LED electrical tabula rasa shown in Fig. 2 a, shown in final Fig. 2 b, relative to Fig. 1, the travel distance anyhow in one-period is reduced to 1/4.
Therefore, according to the present invention, even if LED electrical tabula rasa is from as the luminous plate maximized, because region segmentation drives, there is the effect that scintillation compared to existing technology greatly reduces.
With regard to the LED electrical tabula rasa of dynamic driving mode in prior art, if driven by 1/16 cycle, need 16 selector switchs and 16 active circuits.But, according to LED electrical tabula rasa of the present invention also as the prior art of foregoing, need use 16 selector switchs, 16 active circuits drive by 1/16 cycle, but be reduced to 1/4 compared with prior art travel distance.
On the other hand, according to prior art, when lighting with behavior unit, because of 16 LED element of the upper configuration of row, the time of running will postpone, so 16 × 16=256 LED element should be lighted in order simultaneously.
But, according to the present invention, only have 4 × 4=16 LED element in regional to light in order, area of advancing is reduced to 1/16.
That is, according to the present invention, formation additional on the LED electrical tabula rasa of the dynamic driving mode of prior art, also energy minimization scintillation.
Fig. 3 a is LED element arrangement plan according to an embodiment of the invention, is configured separately, such as, red LED element R, green LED elements G, blue-led element B is configured with a LED element 110 separately for each LED element 110 by color.
Fig. 3 b is the LED element arrangement plan according to the embodiment of the present invention, consists of a LED element 110 and comprises all red LED unit element R, green LED unit element G, blue led unit element.
That is, even if select a LED element 110 by selector switch 201 ~ 216, finally become LED unit element R, G, B of selecting 3 colors such as redness, green, blueness simultaneously.
At this moment, active circuit 301 ~ 316 provides respective driving data to these LED element R, G, B by respective path certainly.
Therefore, with regard to Fig. 3 a, in order to a shiny red, green and blue-led element R, G, B, need the travel distance of w1, but with regard to Fig. 3 b, red, green and blue-led element R, G, B are made up of a microprocessor element, so travel distance can foreshorten to w1/3.
According to one embodiment of present invention, control part 400 control each selector switch 201 ~ 216 light order time, to be electrically connected by configuration sequence to make in each region L1 ~ L16 LED element 110 and to light, produce and select control signal, also can light and produce selection control signal in order to irregular electrical connection when not considering configuration sequence.
That is, as Fig. 4 a shows, control part 400 can, by selecting control signal, make LED element 110 in each region L1 ~ L16 light by configuration sequence, or shows as Fig. 4 b, does not consider configuration sequence, lights brokenly.
Irregular can be embodied in according in a zigzag, the various form such as interference that is in a zigzag inverse or mess code table specifies, random appointment.But, light once if all LED element in each region are controlled in one-period, then can make in any way.
According to other embodiments of the invention, control part 400 can produce selection control signal, makes lighting of LED element 110 in each region L1 ~ L16 occur in sequence cyclical variation.
Fig. 5 a and Fig. 5 b represents to light example sequentially in a zigzag and against zigzag mode.
When making in this way, interimly press the same zigzag sequential illumination LED element 110 of Fig. 5 a in the last week.Therefore can by the inverse sequential illumination LED element 110 in a zigzag of such as Fig. 5 b display in next cycle.
Fig. 6 is the accompanying drawing representing other embodiments of the invention, describe when red LED unit element R, green LED unit element G, blue led unit element B by microprocessor form the example that can be suitable for.
In the embodiment of Fig. 2 a, each LED element 110 in LED module 100 carried out combining and carried out region segmentation, in the embodiment of contrary Fig. 6, a LED element 121,122 being considered as a region.
In detail, the embodiment of Fig. 2 a is the mode that the first LED element D1 of such as each region L1 ~ L16 is lighted by first selector 201 simultaneously, but according to the embodiment of Fig. 6, in the LED unit element comprised in any one and other LED element 121,122 in the LED unit element comprised in microprocessor LED element 121,122, any one is lighted after being selected simultaneously.
And the same with the embodiment of Fig. 2 a, in each LED element 121,122, LED unit element R, G, B are lighted once in one-period by the selector switch 221,222,223 be connected with oneself.
Such as, according to first selector 221, the red LED unit element R of the first LED element 121 and red LED unit element R of the second LED element 122 can carry out being electrically connected and lighting simultaneously.
At this moment, active circuit 321,322 is also the same with Fig. 2 a, to configure in each region, so be respectively configured with an active circuit 321,322 according to the LED element (121,122) being considered as a region in the embodiment of Fig. 6, there is provided driving data to LED unit element R, G, B of being electrically connected according to selector switch 221,222,223, make charged LED unit element start to light.
Generally, the process that microprocessor LED element is referred and synthesized by glow color color in element of the LED unit element of shades of colour comprised in element, finally develops the color.
Therefore, even if in a microprocessor LED element, light LED unit element successively, be also lighting of carrying out in a short period of time, so with the naked eye can only perception finally develop the color, can not the lighting successively of perception microprocessor LED element inside.
That is, in the static mode of prior art, although according to unit element, have source circuit, but in the embodiment of Fig. 6, according to static mode, active circuit quantity is reduced to 1/3, and contrary perception travel distance is 0, thus can obtain in fact the same with static mode effect.
On the other hand, in the embodiment of Fig. 6, describe the example of each configuration red LED unit element R, green LED unit element G and blue led unit element B in a LED element 121,122, but in addition microprocessor LED element can comprise the LED unit element of additional color more, at this moment, according to additional LED unit element, preparation has additional selector and active circuit, and microprocessor LED element is made up of the LED unit element combination of other colors in other situations, thus also prepare have selector switch and active circuit according to its formation.
Simultaneously, according to lighting mode or irregular lighting mode or light LED unit element or irregular lighting mode successively by configuration sequence according to the selection control signal that control part 420 produces in one-period successively in the one-period illustrated with reference to Fig. 2 a embodiment, be applicable to the embodiment of Fig. 6 above.
By content described above, to those skilled in the art, in the scope not departing from the technology of the present invention thought, various change and amendment can be carried out.Therefore, technical scope of the present invention can not be defined as the detailed description recorded in instructions, should specify within the scope of the claims.
Claims (12)
1. a LED electrical tabula rasa, it drives multiple LED element in dynamic driving mode, it is characterized in that, comprising:
LED module, on described LED module, partition is equipped with described LED element, makes each region possess m × n LED element, and wherein, m, n are the natural number of more than 2;
Control part, described control part produces selects control signal, and each described region is electrically connected any one LED element simultaneously;
M × n selector switch, described selector switch is respectively connected with a LED element in each described region, in response to described selection control signal, makes connected LED element be electrically connected at 1/ (m × n) in the cycle simultaneously; And
Active circuit, described active circuit provides driving data to each LED element be electrically connected by described selector switch.
2. LED electrical tabula rasa according to claim 1, is characterized in that, every 1/ (m × n) cycle in one-period of selector switch described in each just works once.
3. LED electrical tabula rasa according to claim 1, is characterized in that, described control part produces described selection control signal, makes each LED element in region described in each be electrically connected by configuration sequence and light.
4. LED electrical tabula rasa according to claim 1, is characterized in that, described control part produces described selection control signal, makes each LED element in region described in each be electrically connected brokenly and light.
5. LED electrical tabula rasa according to claim 1, is characterized in that, described control part produces described selection control signal, makes each LED element in region described in each be electrically connected by zigzag or inverse configuration sequence in a zigzag and light.
6. the LED electrical tabula rasa according to claim 4 or 5, is characterized in that, described control part produces described selection control signal, and the order of lighting of each LED element in region described in each was changed relative to each cycle.
7. LED electrical tabula rasa according to claim 1, is characterized in that, described LED element comprises at least one red LED unit element, at least one green LED unit element and at least one blue led unit element.
8. a LED electrical tabula rasa, comprising:
LED module, described LED module is configured with multiple LED element, and the described multiple LED element on described LED electrical tabula rasa is split into multiple region, and the formation of LED element comprises x LED unit element, and wherein, x is the natural number of more than 2;
Control part, described control part produces selects control signal, and each region is electrically connected any one LED element simultaneously;
X selector switch, described selector switch is respectively connected with a LED element in each described region, in response to described selection control signal, makes connected LED element be electrically connected within the 1/x cycle simultaneously; And
Active circuit, described active circuit provides driving data according to described selector switch to each LED element be electrically connected by described selector switch.
9. LED electrical tabula rasa according to claim 8, is characterized in that, described control part produces described selection control signal, each LED unit element in LED element described in each is lighted in order or irregularly to light.
10. a driving method for LED electrical tabula rasa, the wherein multiple LED element of segmentation configuration in described LED electrical tabula rasa, make each region have m × n LED element, m, n are the natural number of more than 2, it is characterized in that, said method comprising the steps of:
Produce and select control signal, each described region is electrically connected any one LED element simultaneously;
By m × n the selector switch be respectively connected with a LED element in each described region, in response to described selection control signal, in each described region, each 1/ (m × n) makes LED element be electrically connected simultaneously in the cycle; And
According to described selector switch, the LED element to electrical connection provides driving data.
The driving method of 11. LED electrical tabula rasas according to claim 10, is characterized in that, produces described selection control signal, makes each LED element in region described in each be electrically connected by configuration sequence and light.
The driving method of 12. LED electrical tabula rasas according to claim 10, is characterized in that, produces described selection control signal, makes the irregular electrical connection of each LED element in region described in each and lights.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2010-0069439 | 2010-07-19 | ||
| KR1020100069439A KR100992383B1 (en) | 2010-07-19 | 2010-07-19 | Led electric lighting board and its driving method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102339567A CN102339567A (en) | 2012-02-01 |
| CN102339567B true CN102339567B (en) | 2015-04-29 |
Family
ID=43409381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110051013.8A Active CN102339567B (en) | 2010-07-19 | 2011-03-03 | LED electric lighting board and its driving method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100992383B1 (en) |
| CN (1) | CN102339567B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101237950B1 (en) | 2012-04-12 | 2013-03-11 | 빛샘전자주식회사 | Image data displaying method in dynamic type led display board |
| KR102246926B1 (en) * | 2016-11-09 | 2021-04-30 | 삼성전자주식회사 | Led display module and display apparatus |
| CN110168628B (en) * | 2016-12-01 | 2023-07-25 | Lrx投资公司 | Matrix screen, method of manufacturing the same, and display device including the same |
| KR101790467B1 (en) | 2017-02-01 | 2017-10-26 | (주)서울기전 | LED Module Binary Dynamic Driving Method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559063A (en) * | 2001-10-18 | 2004-12-29 | ���ǵ�����ʽ���� | Organic electroluminescence panel, organic electroluminescence display device including the same, and driving apparatus and driving method thereof |
| CN1896586A (en) * | 2005-07-15 | 2007-01-17 | 三星电机株式会社 | Surface light source using led and backlight unit having the surface light source |
| KR100769106B1 (en) * | 2006-09-08 | 2007-10-22 | (주)에니원 | Led screen driver for block scan display |
| CN101206834A (en) * | 2006-12-19 | 2008-06-25 | 日亚化学工业株式会社 | Luminescent device |
| WO2009110513A1 (en) * | 2008-03-07 | 2009-09-11 | ミツミ電機株式会社 | Liquid crystal backlight device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200347091Y1 (en) | 2003-12-24 | 2004-04-09 | (주)컴텔싸인 | A 16×16 matrix module active circuit of 1/8 duty method |
| KR100623036B1 (en) | 2005-09-22 | 2006-09-13 | 삼익전자공업 주식회사 | Electric signboard system improved resolution with dynamic interpolation scanning |
| JP2009271414A (en) | 2008-05-09 | 2009-11-19 | Nec Saitama Ltd | Lamp indicator |
-
2010
- 2010-07-19 KR KR1020100069439A patent/KR100992383B1/en active IP Right Grant
-
2011
- 2011-03-03 CN CN201110051013.8A patent/CN102339567B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1559063A (en) * | 2001-10-18 | 2004-12-29 | ���ǵ�����ʽ���� | Organic electroluminescence panel, organic electroluminescence display device including the same, and driving apparatus and driving method thereof |
| CN1896586A (en) * | 2005-07-15 | 2007-01-17 | 三星电机株式会社 | Surface light source using led and backlight unit having the surface light source |
| KR100769106B1 (en) * | 2006-09-08 | 2007-10-22 | (주)에니원 | Led screen driver for block scan display |
| CN101206834A (en) * | 2006-12-19 | 2008-06-25 | 日亚化学工业株式会社 | Luminescent device |
| WO2009110513A1 (en) * | 2008-03-07 | 2009-09-11 | ミツミ電機株式会社 | Liquid crystal backlight device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100992383B1 (en) | 2010-11-08 |
| CN102339567A (en) | 2012-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101690398B (en) | Systems and methods for controlling a solid state lighting panel | |
| CN101246669B (en) | Scanning type LED display unit and method | |
| CN101393924B (en) | Electroluminescence display panel | |
| US8836624B2 (en) | Partially filterless and two-color subpixel liquid crystal display devices, mobile electronic devices including the same, and methods of operating the same | |
| CN103247254B (en) | The method of the view data of display device and layout display device | |
| CN101868818B (en) | Backlight device and liquid crystal display device using the same | |
| CN101794562B (en) | Liquid crystal display and driving method of liquid crystal display | |
| CN1641739A (en) | Back-light driving circuit in field sequential liquid crystal display | |
| CN108389550A (en) | The driving method and organic light-emitting display device of display screen | |
| CN1206484A (en) | True color flat panel display using led dot matrix and led dot matrix drive method and apparatus | |
| CN102339567B (en) | LED electric lighting board and its driving method | |
| CN1244895C (en) | Method for aging display device and electronic apparatus using same | |
| CN101950513B (en) | Led display screen and control method thereof | |
| CN101025893A (en) | Scanning LED display device | |
| CN104853489B (en) | Light emitting diode driving circuit and driving system | |
| CN111583852B (en) | Light-emitting panel, control method of light-emitting panel, and display device | |
| CN104851397A (en) | Method of driving light-source and display apparatus for performing the method | |
| KR100790715B1 (en) | Backlight unit using light emitting diode | |
| CN101206341B (en) | Planar display and driving method thereof | |
| US20220043302A1 (en) | Display device | |
| JP2019009016A (en) | Light source device, method of controlling the same, and display device | |
| CN1822080B (en) | Organic EL display device and method of driving the device | |
| CN103514832B (en) | OLED display pixel and display packing, OLED display | |
| JP2003223142A (en) | Method to make luminance uniform for area color organic light emitting diode display | |
| CN201007900Y (en) | Scanning type LED display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |