CN205508356U - LED display driver unit and LED display module - Google Patents
LED display driver unit and LED display module Download PDFInfo
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- CN205508356U CN205508356U CN201620123907.1U CN201620123907U CN205508356U CN 205508356 U CN205508356 U CN 205508356U CN 201620123907 U CN201620123907 U CN 201620123907U CN 205508356 U CN205508356 U CN 205508356U
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Abstract
The utility model relates to a LED shows the field, discloses a LED display driver unit and LED display module. The utility model discloses in, contain: control circuit, the driven element unit and be listed as the driven element unit of going, the driven element unit of going contains a plurality of capable drive circuit who establishes ties in proper order, each each data output position of going drive circuit is arranged in connecting a plurality of LED lamps of LED demonstration array with the delegation, control circuit contains capable signal control end and is listed as the signal control end, the signal control end of going is just connected in the input of line driven element unit for the serial ports data terminal, wherein, establish ties at the capables drive circuit's of first place the input input for capable driven element unit, it connects in the input that is listed as the driven element unit to be listed as the signal control end. The utility model discloses make circuit board design simple, reduce and walk the line, practiced thrift the cost, reduced the fault rate, make LED show that the product is more stable, satisfied the user's request.
Description
Technical field
This utility model relates to LED and shows field, particularly to a kind of LED display driver element and LED
Display module.
Background technology
LED display is that the plane formula utilizing LED lattice module or pixel cell composition shows
Screen.It has that luminous efficiency is high, brightness high, visual angle is wide, cost performance is high, flexible in configuration, can be with meter
The various word of calculation machine simultaneous display, figure, image, rich color and to indoor and outdoor surroundings adapt to ability
The advantage such as strong.The application of LED display has spread all over traffic, telecommunications, education, security, advertisement
The each side such as publicity；And cost and the stability requirement of LED Small Distance display product are more come by user therewith
The highest, traditional design scheme cannot meet demand.
Under traditional design scheme, control circuit uses parallel data end, the driving signal that will input from outside
Output parallel decoding signal and row drive control signal after treatment；Wherein, parallel decoding signal is through translating
It is input to row cutting subelement, if following arbitrary scan number, parallel decoding are swept in design 32 after code circuit decoding
Signal is different according to the scanning number of design, can have 15 signals (as 32 sweep 5 signals of needs,
16 sweep 4 signals of needs, and 8 sweep 3 signals of needs, and 4 sweep 2 signals of needs, and 2 sweep 1 letter of needs
Number), 14 decoders, common if 74HC138 is (as 8 sweep and below with 1 decoder, 9-16
Sweeping with 2 decoders, 17-24 sweeps with 3 decoders, and 25-32 sweeps with 4 decoders), decoding electricity
The horizontal-drive signal of road output correspondence scanning number drives row circuit (as 32 sweep corresponding 32 row cutting of output
Signal, 16 sweep corresponding 16 horizontal-drive signals of output) switch and light LED particle；Wherein, row cutting
Circuit is to be formed in parallel by multiple sub-line drive circuits.
In traditional design scheme, along with the increase of scanning number, parallel decoding signal number increases, decoder
Increasing, make board circuit complicated, design difficulty increases, and fault rate improves, and design cost increases, and
Parallel decoding signal intensity, interface pin number change, it is unfavorable for that interface signal is sought unity of standard, design side
Without special blanking sequential in case, ghost and coupling phenomenon, impact display effect cannot be eliminated in Small Distance field
Really.
Utility model content
The purpose of this utility model is to provide a kind of LED display driver element and LED display module,
Make board design simple, reduce cabling, and then make LED display product save cost, reduce
Fault rate, improves the stability of LED display product.
For solving above-mentioned technical problem, embodiment of the present utility model provides a kind of LED display and drives
Unit, comprises: control circuit, row cutting subelement and row drive subelement；Row cutting subelement bag
Containing the multiple horizontal drive circuits being sequentially connected in series；Each data output bit of each horizontal drive circuit is used for connecting LED
With multiple LED of a line in array of display；Control circuit comprises row signal and controls end and column signal control
End；It is serial data end and the input being connected to row cutting subelement that row signal controls end；Wherein, string
It is associated in the input that input is row cutting subelement of the horizontal drive circuit of first place；Column signal controls end even
It is connected to row and drives the input of subelement.
Embodiment of the present utility model provides a kind of LED display module, comprises: LED shows battle array
A kind of LED that row and this utility model additionally provide shows driver element.Each number of each horizontal drive circuit
The multiple LED with a line it are connected in LED array of display according to carry-out bit.
In terms of existing technologies, the row signal of control circuit controls end and is this utility model embodiment
Serial data end and be connected to the input of row cutting subelement, directly eliminates parallel decoding drive circuit,
Make board design simple, reduce cabling, and then make LED display product save cost, reduce
Fault rate, improves the stability of LED display product.
It addition, control circuit also comprises horizontal blanking signal end, horizontal blanking signal end is connected to row cutting list
The input of unit.Increase special horizontal blanking signal end, effectively improve LED Small Distance display product
Field cannot eliminate the problem of ghost and coupling phenomenon, improves display effect.
It addition, row signal controls end comprises data output bit and clock carry-out bit.
It addition, row drive subelement to comprise the multiple column drive circuits being sequentially connected in series；Each column drive circuit
Each data output bit is for connecting in LED array of display the multiple LED with string；Wherein, series connection
Input at the first column drive circuit is the input that row drive subelement.
Connect it addition, LED array of display is common-anode.
Accompanying drawing explanation
Fig. 1 is that the LED according to the first embodiment shows driver element schematic diagram；
Fig. 2 is that the LED according to the second embodiment shows driver element schematic diagram；
Fig. 3 is the 8*8LED display module schematic diagram according to the 3rd embodiment；
In figure: 10, control circuit；11, row cutting subelement；12, row drive subelement.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing pair
Each embodiment of the present utility model is explained in detail.But, those of ordinary skill in the art can
To understand, in each embodiment of this utility model, in order to make reader be more fully understood that, the application proposes
Many ins and outs.But, even if there is no these ins and outs and kind based on following embodiment
Plant and change and modifications, it is also possible to realize the application each claim technical scheme required for protection.
First embodiment of the present utility model relates to a kind of LED display driver element, and (LED is luminescence
The abbreviation of diode).As Fig. 1, LED display driver element comprises: control circuit 10, row cutting
Unit 11 and row drive subelement 12.
Control circuit 10 comprises row signal and controls end and column signal control end；Wherein, row signal controls end
Comprising data output bit and clock carry-out bit, it is serial data end that row signal controls end, and column signal controls end
Also it is serial data end.
Row cutting subelement 11 comprises the N number of horizontal drive circuit being sequentially connected in series, and wherein, N is natural number,
And depending on the concrete numerical value of N is according to the number of scanning lines.The input of the horizontal drive circuit being connected on first place is row
Driving the input of subelement 11, the input of row cutting subelement 11 is connected to row signal and controls end；
Each data output bit of each horizontal drive circuit is for connecting in LED array of display the multiple LED with a line
Lamp, wherein, each horizontal drive circuit comprises multiple data output bit.
Row drive subelement 12 to comprise M the column drive circuit being sequentially connected in series, and wherein, M is natural number,
And depending on the concrete numerical value of M is according to the columns in LED array of display.The row being connected on first place drive electricity
The input on road is the input that row drive subelement 12, and row drive the input of subelement 12 to be connected to
Column signal controls end；Each data output bit of each column drive circuit is used for connecting in LED array of display same
Multiple LED of row, wherein, each column drive circuit comprises multiple data output bit.
Control circuit 10 is receiving the driving signal of outside input, after processing buffering, row signal
Controlling end utilizes data output bit and clock carry-out bit to export serial decoding signal and clock signal respectively, continues
And it being input to the input of row cutting subelement 11, serial decoding signal and clock signal directly drive row to drive
Subunit 11 controls switch, drives LED array of display to work in order.Column signal controls end output
Row drive control signal, is input to row and drives the input of subelement 12, and row drive control signal is directly driven
Dynamic row drive subelement 12, and row cutting subelement 11 has cooperated work.
It is seen that, the design principle of present embodiment is simple, eliminates parallel decoding circuit, makes circuit
Plate decreases cabling, has saved cost, uses serial data end, exports serial data, decreases interference,
Make LED display product more stable, and row signal control end output serial decoding signal with scanning number without
Closing, signal number does not changes with the change of scanning number, contributes to unified interface data, makes data process
Simplify.
Second embodiment of the present utility model relates to a kind of LED and shows driver element.Second embodiment
Roughly the same with the first embodiment, it is in place of the main distinction: in the first embodiment, controls
Circuit 10 comprises row signal and controls end and column signal control end.And at this utility model the second embodiment
In, as in figure 2 it is shown, comprise in control circuit 10, row signal controls end, column signal controls end and horizontal blanking
Signal end；Horizontal blanking signal end is connected to the input of row cutting subelement 11.
Specifically, horizontal blanking signal end output blanking signal, then it is input to row cutting subelement 11
In；Owing to, in LED Small Distance display product, ghost phenomenon is especially prominent with coupling phenomenon performance, logical
Cross blanking signal and drive row cutting subelement 11, eliminate ghost and coupling phenomenon, make LED show product
Display effect is more preferable.
This utility model the 3rd embodiment relates to a kind of LED display module, comprises: LED shows battle array
LED described in row and embodiment 1 or 2 shows driver element；Each data of each horizontal drive circuit
Carry-out bit is connected in LED array of display the multiple LED with a line；LED array of display is common anode
Pole connects.
It is illustrated in figure 3 the schematic diagram of 8*8LED display module, i.e. LED display driver element is used for
Drive a 8*8LED array of display, it is assumed that each horizontal drive circuit has 4 data output bit, the most such as
Row cutting subelement 11 shown in figure comprises 2 horizontal drive circuits being connected in series, each horizontal drive circuit
Each data output bit be connected in 8*8LED array of display 8 LED with a line.Assume every
Individual column drive circuit has 4 data output bit, and row drive subelement 12 to comprise series connection the most as illustrated in the drawing
2 column drive circuits connected, each data output bit of each column drive circuit is connected in and meets 8*8LED and show
With 8 LED of string in array.But, Fig. 3 is merely illustrative, and present embodiment is to row
Drive the data output bit of the number of horizontal drive circuit that subelement comprises and each horizontal drive circuit number,
The number of the column drive circuit that row driving subelement comprises and the number of the data output bit of each column drive circuit
Being not intended to be limited in any, designer can design according to actual needs.
It will be understood by those skilled in the art that the respective embodiments described above be realize of the present utility model
Specific embodiment, and in actual applications, can to it, various changes can be made in the form and details, and
Without departing from spirit and scope of the present utility model.
Claims (6)
1. a LED shows driver element, it is characterised in that comprise: control circuit, row cutting subelement and row drive subelement；
Described row cutting subelement comprises the multiple horizontal drive circuits being sequentially connected in series；Each data output bit of each horizontal drive circuit is for connecting in LED array of display the multiple LED with a line；
Described control circuit comprises row signal and controls end and column signal control end；It is serial data end and the input being connected to described row cutting subelement that described row signal controls end；Wherein, the input that input is described row cutting subelement of the horizontal drive circuit of first place it is connected on；
Described column signal controls end and is connected to the input of described row driving subelement.
LED the most according to claim 1 shows driver element, it is characterised in that described control circuit also comprises horizontal blanking signal end, and described horizontal blanking signal end is connected to the input of described row cutting subelement.
LED the most according to claim 1 shows driver element, it is characterised in that described row signal controls end and comprises data output bit and clock carry-out bit.
LED the most according to claim 1 shows driver element, it is characterised in that described row drive subelement to comprise the multiple column drive circuits being sequentially connected in series；Each data output bit of each column drive circuit is for connecting in described LED array of display the multiple LED with string；
Wherein, the input of the column drive circuit being connected on first place is the input that described row drive subelement.
5. a LED display module, it is characterised in that comprise: in LED array of display and Claims 1-4, the LED described in any one shows driver element；Each data output bit of each horizontal drive circuit is connected to the multiple LED in described LED array of display with a line.
LED display module the most according to claim 5, it is characterised in that described LED array of display is that common-anode connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123907.1U CN205508356U (en) | 2016-02-17 | 2016-02-17 | LED display driver unit and LED display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620123907.1U CN205508356U (en) | 2016-02-17 | 2016-02-17 | LED display driver unit and LED display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205508356U true CN205508356U (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620123907.1U Expired - Fee Related CN205508356U (en) | 2016-02-17 | 2016-02-17 | LED display driver unit and LED display module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358908A (en) * | 2017-05-22 | 2017-11-17 | 福建祥云光电科技有限公司 | A kind of P5.75 patterns LED display |
| CN109362150A (en) * | 2018-11-01 | 2019-02-19 | 郑州云海信息技术有限公司 | A kind of array hard disk backboard state lamp control device |
| WO2024130716A1 (en) * | 2022-12-23 | 2024-06-27 | 京东方科技集团股份有限公司 | Light-emitting module and display device |
-
2016
- 2016-02-17 CN CN201620123907.1U patent/CN205508356U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358908A (en) * | 2017-05-22 | 2017-11-17 | 福建祥云光电科技有限公司 | A kind of P5.75 patterns LED display |
| CN109362150A (en) * | 2018-11-01 | 2019-02-19 | 郑州云海信息技术有限公司 | A kind of array hard disk backboard state lamp control device |
| WO2024130716A1 (en) * | 2022-12-23 | 2024-06-27 | 京东方科技集团股份有限公司 | Light-emitting module and display device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160824 Termination date: 20210217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |