CN107025868A - LED shows data storage, read method and the device of word fan - Google Patents
LED shows data storage, read method and the device of word fan Download PDFInfo
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- 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
- G09G3/005—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes forming an image using a quickly moving array of imaging elements, causing the human eye to perceive an image which has a larger resolution than the array, e.g. an image on a cylinder formed by a rotating line of LEDs parallel to the axis of rotation
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Abstract
Obtain LED the present invention relates to data storage, read method and the device that a kind of LED shows word fan, including step and show display data of the word fan in each display period；According to the time sequencing of each display period in storage area, the display data of each display period is stored successively.The display data that LED shows word fan is stored by the date storage method, and after the display data is read, without the display data is carried out into computing or decoding, it can directly push to and corresponding LED is driven on corresponding chip pin, save the conversion time of display data and LED dispaly states, the time resource of data operation is reduced, the LED for improving display shows the exhibit stabilization and display effect of word fan.
Description
Technical field
The present invention relates to field of data storage, more particularly to LED shows data storage, read method and the dress of word fan
Put.
Background technology
It is to install a row or multi-row LED in fan blade that LED, which shows word fan, according to the original of the suspenopsia of human eye
Reason, by the rotation of blade, reaches the display effect in a face, so as to show word or picture.Traditional LED shows word fan and existed
, it is necessary to be decoded to the data storage after the data storage of reading display content, according to decoded data-driven LED,
Complete the display work of storage content.During showing word fan display content in LED, data conversion shows shape into LED
The processing time of state is longer, and influence LED shows the stability that word fan is shown, and then influences the effect of display.
The content of the invention
Based on this, it is necessary to longer for the processing time of data conversion into LED dispaly states, influence LED shows word fan
There is provided data storage, read method and the device that a kind of LED shows word fan for the stability and display effect of display.
A kind of LED shows the date storage method of word fan, including step：
Obtain LED and show display data of the word fan in each display period；Wherein, the LED shows the blade of word fan
The time for rotating a circle is divided into several display periods；The display data of each display period is included in the display time
Dispaly state data in section corresponding to each LED；
According to the time sequencing of each display period in storage area, each display period is stored successively
Display data；Wherein, the dispaly state data in each display period corresponding to each LED show word according to the LED
Putting in order for LED stores successively on the blade of fan, and it is single that each dispaly state data correspondence takes a default storage
Position.
A kind of LED shows the method for reading data of word fan, including step：
According to the time sequencing of each display period, the display of each display period is read from storage area successively
Data；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into several display periods；During each display
Between the display data of section be included in dispaly state data in the display period corresponding to each LED；
From the display data in the same display period of reading, extract each described aobvious successively with default storage cell
Show status data；
In the display period accordingly, by the dispaly state data in the display period corresponding to each LED according to
The order of extraction, is exported on the chip pin connected to corresponding LED.
A kind of LED shows the data storage device of word fan, including：
First display data acquisition module, shows display data of the word fan in each display period for obtaining LED；Its
In, the time that the LED shows the circle of blade rotation one of word fan is divided into several display periods；It is each to show the aobvious of period
Registration is according to the dispaly state data being included in the display period corresponding to each LED；
First display data memory module, the time sequencing for showing the period according to each in storage area, according to
The display data of each display period of secondary storage, wherein, it is aobvious corresponding to each LED in each display period
Show that status data shows putting in order for LED on the blade of word fan according to the LED and stored successively, each dispaly state number
A default storage cell is taken according to correspondence.
A kind of LED shows the digital independent device of word fan, including：
First display data read module, for the time sequencing according to each display period, successively from storage area
The display data of middle reading each display period；Wherein, if the time that the LED shows the circle of blade rotation one of word fan is divided into
Dry display period；The display data of each display period is included in the display period corresponding to each LED
Dispaly state data；
First dispaly state data extraction module, for from the display data in the same display period of reading, with
Default storage cell extracts each dispaly state data successively；
Data outputting module, for by the dispaly state data output in the same display period read out to right
On the chip pin that the LED answered is connected.
A kind of LED provided by the present invention shows data storage, read method and the device of word fan, is deposited by the data
Method for storing storage LED shows the display data of word fan, and after the display data is read, without the display data is carried out
Computing or decoding, can directly push to and corresponding LED is driven on corresponding chip pin, save display data and are shown with LED
The conversion time of state, reduces the time resource of data operation, and the LED for improving display shows exhibit stabilization and the display of word fan
Effect.
Brief description of the drawings
Fig. 1 shows the date storage method flow chart of word fan for the LED of an embodiment；
Fig. 2 is the data format schematic diagram of display data；
Fig. 3 shows the date storage method flow chart of word fan for the LED of a preferred embodiment；
Fig. 4 shows the method for reading data flow chart of word fan for the LED of an embodiment；
Fig. 5 shows the method for reading data flow chart of word fan for the LED of a preferred embodiment；
Fig. 6 shows the data storage device function structure chart of word fan for the LED of an embodiment；
Fig. 7 shows the data storage device function structure chart of word fan for the LED of a preferred embodiment；
Fig. 8 shows the digital independent apparatus module structure chart of word fan for the LED of an embodiment；
Fig. 9 shows the digital independent apparatus module structure chart of word fan for the LED of a preferred embodiment.
Embodiment
Purpose, technical scheme and technique effect for a better understanding of the present invention, below in conjunction with drawings and examples
Further explaining illustration is carried out to the present invention.State simultaneously, embodiments described below is only used for explaining the present invention, not
For limiting the present invention.
In one embodiment, as shown in figure 1, showing the date storage method flow chart of word fan, bag for the LED of an embodiment
Include step：
S101, obtains LED and shows display data of the word fan in each display period；Wherein, the LED shows word fan
The time that blade rotates a circle is divided into several display periods；The display data of each display period is included in the display
Dispaly state data in period corresponding to each LED.
S102, according to the time sequencing of each display period in storage area, when storing each described display successively
Between section display data；Wherein, the dispaly state data in each display period corresponding to each LED are according to described
LED shows putting in order for LED on the blade of word fan and stored successively, and each dispaly state data correspondence takes one and preset
Storage cell.
Wherein, one LED of each dispaly state data correspondence dispaly state, includes LED bright state and state of going out.Often
Individual LED correspondences one chip pin of connection, the logic level state of chip pin includes two states, i.e. high level and low electricity
It is flat.In the present embodiment, LED is in bright state, and the logic level state of the chip pin of the corresponding connections of the LED is high level
State；Conversely, when LED is to go out state, the logic level state of the chip pin of the corresponding connections of the LED is low level shape
State.Further, the high level state of the chip pin is represented using a binary coding " 1 ", a binary system is used
Encode the low level state that " 0 " represents the chip pin.Used binary coded data is corresponding to each LED
Dispaly state data.Meanwhile, the difference of correspondence LED logic levels can be driven according to the pin of different chips, obtains different
Dispaly state data.
Wherein, LED, which shows the blade of word fan, includes LED on several LED, blade according to the default progress that puts in order
Arrangement.Dispaly state data of each LED on the blade of the aobvious word fans of LED in section at the same time are obtained according to LED's
Put in order and encode successively, obtain above-mentioned display data.It is again that the display data is suitable according to the time of each display period
Sequence is stored successively.
In one embodiment, above-mentioned default storage cell be bit, a bit can store a binary coding " 0 " or
" 1 ", that is, correspond to above-mentioned dispaly state data.The dispaly state data are stored using minimum memory unit bit, to save as far as possible
Save storage resource.It should be noted that in actual applications, according to the difference of the state of the logic level or chip drives form
Difference, the default storage cell can be set to other conventional storage cells by those skilled in the art.
In one embodiment, the chip that the LED is connected includes two 16bit pin, each two storage
The dispaly state data for the LED that the pin that the display data of unit stores a 16bit is connected；The storage of the display data
Unit is byte.As the preferred embodiment of present embodiment, above-mentioned LED blade includes 32 LED, and LED institutes are right
The chip that should be connected includes 32 output pins, and the concrete model of chip can be the singlechip chip of STM32 series, STM32
The chip of series includes multigroup configuration pin：GPIOA, GPIOB, GPIOC etc., each group of configuration pin include 16 pins, i.e.,
BIT0 to BIT15.Each pin correspondence one LED of connection, correspondence is driven using two groups of configuration pin GPIOA and GPIOB
LED.As shown in Fig. 2 being the data format schematic diagram of display data, the pin of a 16BIT size is represented using 2 byte
State, first byte represents GPIOA groups BIT0 to BIT7 pin state, and 0 represents in low level, and 1 representative is in height
Level.Second byte represents the state of GPIOA group BIT8 to BIT15 pins.3rd byte represents GPIOB groups BIT0
To the state of BIT7 pins.4th byte represents the state of GPIOB group BIT8 to BIT15 pins.4 are thus used
Byte data represent the state of 2 16BIT pin completely, and this 4 byte data are to be shown at one in the period
Display data.
It should be noted that showing the difference of LED quantity in word fan blade, the chip pin of corresponding connection according to LED
Quantity it is also different, those skilled in the art can select other corresponding chips according to the quantity of pin.Meanwhile, according to display
The change of the selected storage cell of default storage cell of status data, the display data should also be selected according to practical application
Other conventional storage cells.
By the date storage method of above-described embodiment, it can directly know that LED's is aobvious by storing obtained display data
Show state, the logic level state of chip pin can directly be obtained by reading the display data, without being solved to the data
Code or computing, save the conversion time of display data and LED dispaly states, reduce the time resource of data operation, improve aobvious
The LED shown shows the exhibit stabilization and display effect of word fan.
In a preferred embodiment, as shown in figure 3, showing the date storage method of word fan for the LED of a preferred embodiment
Flow chart, including step：
S201, obtains the sub display data for showing the period for each showing that the period includes；Wherein, when being shown per height
Between the display data of section be included in dispaly state data in the sub- display period corresponding to each LED.
S202, according to the time sequencing of each display period, stores each son for including of display period successively
Show the display data of period.
Wherein, when the LED is color LED, the above-mentioned display period includes some height and shows the period.In order to more
The present embodiment is understood well, so that the aobvious word fans of LED show 256 color colors as an example.In each color LED again including it is red, green,
The LED of blue three colors, each display period is divided into 5 sons and shows the period.By taking red LED as an example, if in 5 son displays
The red LED for showing the period in period per height is all bright state, then red LED is within a display period
100% brightness；If conversely, 5 son show the periods in per height show the period red LEDs be all the state of going out,
Red LED is 0% brightness in one display period.Due to one display the period include 5 son show the periods, therefore
One display the period in red LED can for 0% brightness, 20% brightness, 40% brightness, the brightness of 60% brightness 80% and
Six kinds of states such as 100% brightness.Similarly, green LED and blue led also include above-mentioned six kinds of states, the LED of three kinds of colors
The colored display that 256 color precision are realized in the period is shown at one.
Wherein, each color LED correspondence 3 chip pins of connection, the i.e. LED of each color is connected respectively a core
Piece pin.The LED of each color shows one dispaly state data of correspondence in the period in a son.
Wherein, according to actual needs, it is necessary to when the color LED completes the colored display of different accuracy, during a display
Between son in section show that the quantity of period can be accordingly adjusted.
By the date storage method of this preferred embodiment, the corresponding display data of the dispaly state of color LED is carried out
Storage, is driven by the dispaly state data to color LED, it is possible to achieve the coloured silk similar with pwm controls display effect
Color shows, reduces LED fan and shows hardware requirement to chip, while simplifying the driver that LED shows fan, more
Save data resource.
In one embodiment, as shown in figure 4, showing the method for reading data flow chart of word fan, bag for the LED of an embodiment
Include step：
S301, according to the time sequencing of each display period, reads each display period from storage area successively
Display data；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into several display periods；Each
The display data of display period is included in the dispaly state data corresponding to each LED in the display period.
S302, from the display data in the same display period of reading, extracts each successively with default storage cell
The dispaly state data.
S303, in the display period accordingly, by the dispaly state data corresponding to each LED in the display period
According to the order of extraction, export on the chip pin connected to corresponding LED.
Wherein, the display data and the dispaly state data are successively according to display during above-mentioned storage
The display order of period and putting in order for LED are stored.Therefore, in the reading of above-mentioned data, the display read
Data can be exported on the chip pin connected to corresponding LED, i.e., corresponding LED in the display period accordingly.
In one embodiment, by the dispaly state data conversion into the logic level state on corresponding chip pin.
The dispaly state data that said extracted goes out are in output on corresponding chip pin, corresponding logic level is converted into drive pair
The LED answered.
The method for reading data of word fan is shown by the LED of the present embodiment, realized the reading process of above-mentioned display data,
Dispaly state data are extracted wherein in display data, the dispaly state data extracted can be directly output to corresponding chip
On pin.Whole process need not carry out computing and decoding, and the time of saving can make display process more steady.
In a preferred embodiment, the LED for being illustrated in figure 5 a preferred embodiment shows the method for reading data stream of word fan
Cheng Tu, including step：
S401, according to the time sequencing of each display period, reads each display period from storage area successively
Comprising son show the period display data；Wherein, show that the display data of period is included in the sub- display per height
Dispaly state data in period corresponding to each LED.
S402, from the display data in the same sub- display period of reading, is extracted often successively with default storage cell
The individual dispaly state data.
S403, shows the period, by the dispaly state corresponding to each LED in the sub- display period in corresponding son
Data are exported on the chip pin connected to corresponding LED according to the order of extraction.
Wherein, when the LED is color LED, a display period is divided into some height and shows the period, is reading
To one display the period display data when, then by the display period son show the period time sequencing read the son
Show the display data of period.Further, dispaly state number is extracted with default storage cell out of this sub- display period
According to by the dispaly state data output to corresponding LED pins.
In one embodiment, by the dispaly state data conversion into the logic level state on corresponding chip pin.
The dispaly state data that said extracted goes out are in output on corresponding chip pin, corresponding logic level is converted into drive pair
The LED answered.
The method for reading data of word fan is shown by the LED of this preferred embodiment, the display data of color LED is read,
The corresponding display period is driven by the dispaly state data to color LED, it is possible to achieve with pwm control display effects
Colored display as fruit, reduces LED fan and show hardware requirement to chip, while simplifying the drive of LED display fans
Dynamic program, more saves data resource.
In one embodiment, as shown in fig. 6, showing the data storage device modular structure of word fan for the LED of an embodiment
Figure, including：
First display data acquisition module 501, shows display number of the word fan in each display period for obtaining LED
According to；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into several display periods；Each display time
The display data of section is included in the dispaly state data corresponding to each LED in the display period.
First display data memory module 502, for the time sequencing in storage area according to each display period,
The display data of each display period is stored successively, wherein, in each display period corresponding to each LED
Dispaly state data show putting in order for LED on the blade of word fan according to the LED and stored successively, each dispaly state
Data correspondence takes a default storage cell.
By the data storage device of the present embodiment, obtain LED using the first display data acquisition module 501 and show word fan
Display data, stored by 802 pairs of display datas of the first display data memory module.Needing to the storage
When data are read out, without being decoded or computing to the data, the conversion of display data and LED dispaly states is saved
Time, the time resource of data operation is reduced, the LED for improving display shows the exhibit stabilization and display effect of word fan.
In a preferred embodiment, as shown in fig. 7, showing the data storage device of word fan for the LED of a preferred embodiment
Function structure chart, including：
Period adjusting module 601 is shown, for when the LED is color LED, by each display period point
The period is shown into several height.
Second display data acquisition module 602, the aobvious of period is shown for obtaining the son that each display period includes
Registration evidence；Wherein, show that the display data of period is included in the sub- display period corresponding to each LED per height
Dispaly state data.
Second display data memory module 603, for the time sequencing according to each display period, stores each successively
The son that the display period includes shows the display data of period.
, will be every by above-mentioned display period adjusting module 601 when needing the display data to color LED to store
The individual display period is divided into some height and shows the period.Obtain each aobvious by the second display data acquisition module 602
Show that son that the period includes shows the display data of period, be further advanced by the second display data memory module 603
Store the display data.
The data storage device of word fan is shown by the LED of this preferred embodiment, the dispaly state of color LED is corresponding
Display data is stored, and color LED is driven by the dispaly state data, it is possible to achieve control to show with pwm
The similar colored display of effect, reduces LED fan and show hardware requirement to chip, while simplifying LED display fans
Driver, more saves data resource.
In one embodiment, as shown in figure 8, showing the digital independent apparatus module structure of word fan for the LED of an embodiment
Figure, including：
First display data read module 701, it is empty from storage successively for the time sequencing according to each display period
Between in read the display data of each display period；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into
Several display periods；The display data of each display period is included in the display period corresponding to each LED
Dispaly state data.
First dispaly state data extraction module 702, for from the display data in the same display period of reading,
Each dispaly state data are extracted with default storage cell successively.
Data outputting module 703, for by the dispaly state data output in the same display period read out
On the chip pin connected to corresponding LED.
The display data of each display period is read by above-mentioned first display data read module 701, is further led to
Cross the first dispaly state data extraction module 702 and extract each dispaly state data, will be described aobvious by data outputting module 703
Show that status data is exported on the chip pin connected to corresponding LED.
The digital independent device of word fan is shown by the LED of the present embodiment, realized the reading process of above-mentioned display data,
Dispaly state data are extracted wherein in display data, the dispaly state data extracted can be directly output to corresponding chip
On pin.Whole process need not carry out computing and decoding, and the time of saving can make display process more steady.
In a preferred embodiment, as shown in figure 9, showing the digital independent device of word fan for the LED of a preferred embodiment
Function structure chart, including：
Second display data read module 801, it is empty from storage successively for the time sequencing according to each display period
Between in read the display data that the son that each display period includes shows the period；Wherein, the aobvious of period is shown per height
Registration is according to the dispaly state data being included in the sub- display period corresponding to each LED.
Second dispaly state data extraction module 802, from the display data in the same sub- display period of reading, with
Default storage cell extracts each dispaly state data successively.
In one embodiment, above-mentioned data outputting module 703 is additionally operable to the second dispaly state data extraction module
On the chip pin that 802 each dispaly state data output extracted are connected to corresponding LED.
The son that each display period includes is read by above-mentioned second display data read module 801 and shows the period
Display data, further extracts each dispaly state data by the second dispaly state data extraction module 802, defeated by data
Go out on the chip pin that module 703 is connected the dispaly state data output to corresponding LED.
The digital independent device of word fan is shown by the LED of this preferred embodiment, the display data of color LED is read,
The corresponding display period is driven by the dispaly state data to color LED, it is possible to achieve with pwm control display effects
Colored display as fruit, reduces LED fan and show hardware requirement to chip, while simplifying the drive of LED display fans
Dynamic program, more saves data resource.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (12)
1. a kind of LED shows the date storage method of word fan, it is characterised in that including step：
Obtain LED and show display data of the word fan in each display period；Wherein, the LED shows the blade rotation of word fan
The time of one circle is divided into several display periods；The display data of each display period was included in the display period
Dispaly state data corresponding to each LED；
According to the time sequencing of each display period in storage area, the display of each display period is stored successively
Data；Wherein, the dispaly state data in each display period corresponding to each LED show word fan according to the LED
Blade on putting in order for LED store successively, each dispaly state data correspondence takes a default storage cell.
2. LED according to claim 1 shows the storage method of word fan, it is characterised in that the default storage cell is
bit。
3. LED according to claim 2 shows the date storage method of word fan, it is characterised in that what the LED was connected
Chip include two 16bit pin, the pin that the display data of each two storage cell stores a 16bit connects
The LED connect dispaly state data；The storage cell of the display data is byte.
4. LED according to claim 1 shows the date storage method of word fan, it is characterised in that when the LED is colour
During LED, the display period includes some height and shows the period, and the acquisition LED shows word fan in each display time
The step of display data of section, includes：
Obtain the sub display data for showing the period for each showing that the period includes；Wherein, the aobvious of period is shown per height
Registration is according to the dispaly state data being included in the sub- display period corresponding to each LED；
The time sequencing for showing the period according to each in storage area, stores each display period successively
The step of display data, includes：
According to each display the period time sequencing, store successively each it is described display period include son show the period
Display data.
5. a kind of LED shows the method for reading data of word fan, it is characterised in that including step：
According to the time sequencing of each display period, the display number of each display period is read from storage area successively
According to；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into several display periods；Each display time
The display data of section is included in the dispaly state data corresponding to each LED in the display period；
From the display data in the same display period of reading, each display shape is extracted with default storage cell successively
State data；
In the display period accordingly, by the dispaly state data corresponding to each LED in the display period according to extraction
Order, export on the chip pin that is connected to corresponding LED.
6. LED according to claim 5 shows the method for reading data of word fan, it is characterised in that when the LED is colour
During LED, the display period include some height show the period, it is described according to each display the period time sequencing,
The step of display data for reading each display period from storage area successively, includes：
According to the time sequencing of each display period, the son that each the display period includes is read from storage area successively and is shown
Show the display data of period；Wherein, show that the display data of period is included in the sub- display period often per height
Dispaly state data corresponding to individual LED；
In display data in, extract each described aobvious successively with default storage cell
The step of showing status data includes：
From the display data in the same sub- display period of reading, each display is extracted with default storage cell successively
Status data；
It is described in the display period accordingly, by the dispaly state data in the display period corresponding to each LED according to
The order of extraction, the step exported on the chip pin connected to corresponding LED includes：
Show the period in corresponding son, by the dispaly state data corresponding to each LED in the sub- display period according to
The order of extraction, is exported on the chip pin connected to corresponding LED.
7. the LED according to claim 5-6 any one shows the method for reading data of word fan, it is characterised in that also wrap
Include step：
By the dispaly state data conversion into the logic level state on corresponding chip pin.
8. a kind of LED shows the data storage device of word fan, it is characterised in that including:
First display data acquisition module, shows display data of the word fan in each display period for obtaining LED；Wherein,
The time that the LED shows the circle of blade rotation one of word fan is divided into several display periods；The display of each display period
Data are included in the dispaly state data corresponding to each LED in the display period；
First display data memory module, for the time sequencing in storage area according to each display period, is stored up successively
The display data of each display period is deposited, wherein, the display shape in each display period corresponding to each LED
State data show putting in order for LED on the blade of word fan according to the LED and stored successively, each dispaly state data pair
A default storage cell should be taken.
9. LED according to claim 8 shows the data storage device of word fan, it is characterised in that also include：
Period adjusting module is shown, for when the LED is color LED, being divided into some each display period
Height shows the period；
Second display data acquisition module, for obtain it is each display the period include son show the period display data；
Wherein, show that the display data of period is included in the display shape in the sub- display period corresponding to each LED per height
State data；
Second display data memory module, for the time sequencing according to each display period, stores each described aobvious successively
Show that son that the period includes shows the display data of period.
10. a kind of LED shows the digital independent device of word fan, it is characterised in that including：
First display data read module, for the time sequencing according to each display period, reads from storage area successively
Take the display data of each display period；Wherein, the time of the circle of blade rotation one of the aobvious word fans of the LED is divided into several
Show the period；The display data of each display period is included in the display corresponding to each LED in the display period
Status data；
First dispaly state data extraction module, for from the display data in the same display period of reading, with default
Storage cell extracts each dispaly state data successively；
Data outputting module, for by the dispaly state data output in the same display period read out to corresponding
On the chip pin that LED is connected.
11. LED according to claim 10 shows the digital independent device of word fan, it is characterised in that in the LED be coloured silk
During color LED, in addition to：
Second display data read module, for the time sequencing according to each display period, reads from storage area successively
Take the sub display data for showing the period that each display period includes；Wherein, the display data of period is shown per height
It is included in the dispaly state data corresponding to each LED in the sub- display period；
Second dispaly state data extraction module, from the display data in the same sub- display period of reading, is deposited with default
Storage unit extracts each dispaly state data successively.
12. the LED according to claim 10-11 shows the digital independent device of word fan, it is characterised in that the data are defeated
Go out module and be additionally operable to each dispaly state data output for being extracted the second dispaly state data extraction module to correspondingly
The chip pins that are connected of LED on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710249199.5A CN107025868B (en) | 2017-04-17 | 2017-04-17 | Data storage and reading method and device for LED character display fan |
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| CN107025868B (en) | 2020-10-30 |
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