CN106157875A - Signal can transmitted in both directions formula LED display cell board - Google Patents
Signal can transmitted in both directions formula LED display cell board Download PDFInfo
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- CN106157875A CN106157875A CN201510118951.3A CN201510118951A CN106157875A CN 106157875 A CN106157875 A CN 106157875A CN 201510118951 A CN201510118951 A CN 201510118951A CN 106157875 A CN106157875 A CN 106157875A
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Abstract
The present invention discloses a kind of data signal can the LED display cell board of transmitted in both directions, this LED display cell board solves the data signal on current LED unit plate can only the technical problem of one-way transmission, by increasing forward and reverse transmission control instruction in control instruction, on LED unit plate hardware configuration, increase corresponding logical operation circuit simultaneously realize forward data transmission and reverse data transmission does not interfere with each other, do not conflict mutually, thus realize the purpose of data double-way transmission on LED unit plate, this technology solves when in forward transmission way, certain cell board breaks down data signal, cell board below can be controlled by reverse data signal transmission, and it is unlikely to the problem that cell board below all cannot normally work.
Description
Technical field
The present invention relates to LED display technical field, especially LED display cell board functional design field.
Background technology
Birth along with LED lamp bead, LED display receives the favor of all trades and professions with its flexible and changeable display function and bright and colourful display effect and rapidly be universal, but due to display screen displaying principle by form display screen each lamp bead light on and off control be combined into different character patterns, display area is the biggest, need lamp bead the most, but master controller can not have abundant pin individually to control each lamp bead, this introduces serial transmission control technology.In installation for convenience, therefore whole display screen is divided into cell board one by one, splice flexibly according to size, whole display screen just has many group cell boards first to connect parallel combination again, in whole series unit plate, factor data signal is single direction transmission, one is had to break down, cell board below just cannot receive valid data, arise that mess code, all light, the various unordered displays such as do not work entirely, increase along with display length, the cell board of series connection is the most, therefore the probability broken down is the biggest, therefore a kind of new technology of eager needs reduces this probability broken down as possible.
At present, along with the development of the sector and perfect, the two-way receive capabilities controlling card has been popularized at all-colour LED screen receiving card control field, but this only can guarantee that transmitting signal breaks down remain to normally show on computer end and display screen Jian Yin mono-tunnel, the most fundamentally do not solve when a module unit plate breaks down, the problem that subsequent cell plate cannot normally work.
Summary of the invention
It is an object of the invention to existing LED unit board communications mode and hardware configuration are improved, this cell board and the whole screen data signal that is stitched together can be enable after improvement to carry out transmitted in both directions, thus reach, when in data transmission path, certain block plank breaks down, not interfere with the purpose that follow-up LED unit plate normally works.
The present invention is that a kind of data signal can the LED unit plate of transmitted in both directions; it includes the control signal circuit of control chip signal forward and reverse transmission switching; the forward transmission of data signal and reverse transfer circuit; regulation data forward and reverse transmission channel switching with door or door, not gate related chip; signal relay amplification chip, line driving chip, coding chip; go here and there into and go out chip, LED lamp bead, signal wiring pricking with needle, supply terminals and protection circuit auxiliary circuit etc..
Wherein, forward and reverse control signal accesses on forward and reverse control end of signal relay amplification chip, each is gone here and there into and logically contiguous with forward and reverse data transmission channel after driving chip series connection of falling out, coding chip and line driving chip fit into every trade and drive scanning, on circuit board, all components and parts are powered by binding post, on plate, signal is introduced by wiring pricking with needle, and on plank, all LED lamp bead are lighted and turned off under the driving in order of each chip.
The positive effect of the present invention is: on the basis of the most compatible existing hardware interface, LED unit plate is made to be provided with the function of two-way signaling transmission, thus reached when in signal transmission pathway, certain module unit plate breaks down, the purpose that subsequent cell plate still can normally work.
Accompanying drawing explanation
Fig. 1 is LED unit plate data double-way transmission line part cabling principle sketch
Fig. 2 is the catenation principle sketch of the adjacent two blocks of LED unit plates described in Fig. 1
Fig. 3 A is that signal during normal work after common LED cell board polylith splices moves towards figure
Fig. 3 B be common LED cell board polylith splicing after one of break down after signal move towards figure
Fig. 3 C be function described in Fig. 1 the splicing of cell board polylith after move towards figure when the signal remaining to normally work follow-up after one of breaking down
Marginal data: 1-data forward and reverse transmission of control signals line；2-signal relay amplifies and forward and reverse transmission chip；The transmission of 3-signal forward controls and door；4-forward and reverse signal access point or door；5-goes here and there into and driving chip of falling out；6-signal wiring pricking with needle；7-forward signal transmission line；8-reverse signal transmission line；The transmission of 9-signals reverse controls and door；10,11-signal transmits forward and reverse branch road；12-signals reverse transmission tie-in line.
Detailed description of the invention
The embodiment that invention will be further ex-plained with reference to the appended drawings.
Bidirectional data transfers LED unit plate as shown in Figure 1, including data forward and reverse transmission of control signals line 1, signal forward transmission channel part 7,3,4,5,11, signals reverse transmission channel part 12,4,5,10,9,8, also includes that other assist clipped.
nullForward transmission mode: when forward and reverse control signal 1 circuit is high level，Signal relay amplification chip 2 signal under the control of 1 control signal is introduced by left side wiring pricking with needle，Amplified transmit to the right，The output signal that forward transmission controls with door is transmitted data by control signal high level and forward and is drawn，Because when forward transmits, control signal is high level，Therefore output signal level follows the change of forward input signal，At forward and reverse incoming end or door 4，Reversely incoming line is by pull down resistor ground connection，Low level is kept when no signal is incoming，Therefore or door output follow completely forward input signal change，Forward input signal is after each row driving chip 5，Divide 10、11 liang of branch roads，Input such as Fig. 2 of the incoming next cell board of branch road 11，10 tributary signals because of with the logic NOT phase of control signal high level with，Therefore 8 circuits now remain low level，Signal cannot reverse transfer，It is only capable of forward transmission.
nullReverse transfer pattern: when forward and reverse control signal 1 circuit is low level，Signal relay amplification chip 2 signal under the control of 1 control signal transmits from right to left，Signal is introduced the right side wiring pricking with needle end 6 of this cell board by the output signal pricking with needle of right sided cell plate，Introduce through backward transmission line 12，Carry out or computing at forward and reverse incoming end or door 4 and forward input signal，And be low level with one of door 3 input control signal，Therefore the output of 3 now keeps low level，Or the output signal of door 4 follows reverse signal and is changed，Reversely input signal is after each row driving chip 5，Divide 10、11 liang of branch roads，Branch road 11 signal incoming right sided cell plate input，But owing to the signal amplification chip 2 on right sided cell plate is now operated in transmission mode from right to left，Therefore this signal cannot incoming right sided cell plate.
On branch road 10 signal at 9 and control signal logic NOT phase with, it it is now low level because of control signal, logic NOT is high level, therefore the change of reverse input signal is followed in the output of 9, at chip 2, because chip 2 is now operated in transmission mode from right to left, reverse signal passes through through backward transmission line 8, transmits pricking with needle incoming left cell plate through left-side signal.Therefore, now signal can only reverse transfer.
To sum up analyzing, this circuit structure has the low and high level by controlling forward and reverse control circuit, and then controls the function of the forward and reverse transmission of data signal of whole series unit plate.
Claims (3)
1. signal can a transmitted in both directions formula LED display cell board, it includes controlling the logical operations original paper of forward and reverse signal transmission, forward and reverse control
Signal circuit, forward and reverse data signaling circuit, row cutting original paper, row drive original paper, auxiliary circuit etc., it is characterised in that can
With the low and high level by controlling forward and reverse control signal, forward and reverse transmission of data signal on control unit plate.
2. signal as claimed in claim 1 can transmitted in both directions formula LED display cell board, it is characterised in that it can also be by controlling forward and reverse control
The low and high level of signal processed, and then control the logical operations original paper forward and reverse data signal transmission of selectivity break-make.
3. the signal as described in claim 1 claim 2 can transmitted in both directions formula LED display cell board, it is characterised in that its data signal can
With transmitted in both directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118951.3A CN106157875A (en) | 2015-03-18 | 2015-03-18 | Signal can transmitted in both directions formula LED display cell board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510118951.3A CN106157875A (en) | 2015-03-18 | 2015-03-18 | Signal can transmitted in both directions formula LED display cell board |
Publications (1)
| Publication Number | Publication Date |
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| CN106157875A true CN106157875A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510118951.3A Pending CN106157875A (en) | 2015-03-18 | 2015-03-18 | Signal can transmitted in both directions formula LED display cell board |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841184A (en) * | 2019-04-04 | 2019-06-04 | 郑州新双恒信息技术有限公司 | A kind of LED control card of both-way communication and the composite structure of LED unit plate |
| CN111341247A (en) * | 2019-07-31 | 2020-06-26 | 深圳市晶泓科技有限公司 | Drive chip, LED lamp and LED display screen |
| CN111768721A (en) * | 2020-07-22 | 2020-10-13 | 大连集思特科技有限公司 | LED lamp pearl of four-wire inner seal IC with two-way data transmission |
| CN112259040A (en) * | 2019-07-02 | 2021-01-22 | 浙江宇视科技有限公司 | Adapter plate, display module and display device |
| CN112885294A (en) * | 2021-01-27 | 2021-06-01 | 深圳市帝麦德斯科技有限公司 | LED drive chip, drive circuit and display unit of dual signal source input |
| US11568792B2 (en) | 2020-12-18 | 2023-01-31 | Novatronics Co., Limited | Driver chip, LED lamp and LED display screen |
-
2015
- 2015-03-18 CN CN201510118951.3A patent/CN106157875A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841184A (en) * | 2019-04-04 | 2019-06-04 | 郑州新双恒信息技术有限公司 | A kind of LED control card of both-way communication and the composite structure of LED unit plate |
| CN112259040A (en) * | 2019-07-02 | 2021-01-22 | 浙江宇视科技有限公司 | Adapter plate, display module and display device |
| CN111341247A (en) * | 2019-07-31 | 2020-06-26 | 深圳市晶泓科技有限公司 | Drive chip, LED lamp and LED display screen |
| CN111768721A (en) * | 2020-07-22 | 2020-10-13 | 大连集思特科技有限公司 | LED lamp pearl of four-wire inner seal IC with two-way data transmission |
| US11568792B2 (en) | 2020-12-18 | 2023-01-31 | Novatronics Co., Limited | Driver chip, LED lamp and LED display screen |
| CN112885294A (en) * | 2021-01-27 | 2021-06-01 | 深圳市帝麦德斯科技有限公司 | LED drive chip, drive circuit and display unit of dual signal source input |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Liu Feipeng Document name: Notification of Passing Preliminary Examination of the Application for Invention |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |