CN104795025A - LED display module and method for detecting states thereof - Google Patents
LED display module and method for detecting states thereof Download PDFInfo
- Publication number
- CN104795025A CN104795025A CN201510214691.XA CN201510214691A CN104795025A CN 104795025 A CN104795025 A CN 104795025A CN 201510214691 A CN201510214691 A CN 201510214691A CN 104795025 A CN104795025 A CN 104795025A
- Authority
- CN
- China
- Prior art keywords
- module
- led
- led display
- interface
- driving circuit
- 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.)
- Granted
Links
Abstract
The invention relates to an LED display module and a method for detecting states thereof. The LED display module comprises a module display driving circuit, a microprocessor module and a first module input and output interface. The microprocessor module is provided with a first serial port and a plurality of input/output ports; the first module input and output interface comprises a module input interface portion and a first serial port portion, the module input interface portion is electrically connected with an input end of the module display driving circuit, and the first serial port portion is electrically connected with the first serial port of the microprocessor module; the multiple input/output ports of the microprocessor module are electrically connected with an output end of the module display driving circuit. The LED display module and the method have the advantages that the various states of the LED display module can be detected by the aid of circuit designs, additional configured monitoring cards can be omitted, and the intelligence of the LED display module can be improved.
Description
Technical field
The present invention relates to technical field of LED display, particularly a kind of LED shows the condition detection method of module and a kind of LED display module.
Background technology
At existing light emitting diode (light emitting diode, LED) display screen display control program comprises: receiving card and LED show module, wherein LED display is formed by multiple box body splicing, and each casing is spliced by multiple LED lamp panel.Show on module at traditional LED and be provided with storer, read and write by receiving card, realize lamp plate correction coefficient, the management of every module information such as production information, in order to realize correction data and production information management, receiving card is adopted to ask that LED shows the storer on module by SPI interface or the receiving of I2C interface direct in traditional approach, (SPI interface needs 4 signal wires to use SPI interface to there is the many problems of control line, also need as needed lamp plate cascade additionally to increase by two addressing lines), use that I2C interface control line can less slightly (I2C interface needs 2 signal wires, also need as needed lamp plate cascade additionally to increase by two addressing lines), but the traffic rate of I2C interface lower (being generally 400kbps).
Refer to Fig. 1, the LED display module in traditional scheme is provided with flash storage, and receiving card is read and write storer by module input interface, realizes the management of every module information such as lamp plate correction coefficient, production information.Module output interface connects the module input interface that another LED shows module, to realize cascade.In addition, traditional scheme in order to realize winding displacement detect and error detection (spot check of LED point) need usage monitoring card, by the display drive signals of end module collection selection be back to receiving card, it takes up room and increases cost.In addition, the LED in traditional scheme shows the state such as information such as temperature and voltage that module can not monitor module, causes it not intelligent.
Summary of the invention
Therefore, for deficiency of the prior art, the present invention proposes the condition detection method that a kind of LED shows module and a kind of LED display module.
Particularly, a kind of LED that the embodiment of the present invention provides shows module, and it comprises: module displays driving circuit; Microprocessor module, has a first serial and multiple I/O port; First module IO interface, comprise module input interface section and first serial part, described module input interface section is electrically connected the input end of described module displays driving circuit for inputting data and controlling signal to described module displays driving circuit, and described first serial part is electrically connected the described first serial of described microprocessor module; Wherein, described multiple I/O port of described microprocessor module is electrically connected the output terminal of described module displays driving circuit for the data and the control signal that receive the output of described module displays driving circuit.In addition, whether described microprocessor module is abnormal to judge the connection state of described module input interface section for the validity of the data and control signal that detect the output of described module displays driving circuit, and/or carries out the spot check result data of spot check for the multiple LED points obtained from the data of described module displays driving circuit output and control signal described LED display module band carries when described module displays driving circuit is in spot check mode of operation and store.
In one embodiment of the invention, above-mentioned microprocessor module also has a second serial, above-mentioned LED shows module and also comprises the second module IO interface, described second module IO interface comprises module output interface part and second serial part, described module output interface part is electrically connected the described output terminal of described module displays driving circuit for the data and the control signal that receive the output of described module displays driving circuit, and described second serial part is electrically connected the described second serial of described microprocessor module.
In one embodiment of the invention, above-mentioned first serial and second serial are universal asynchronous receiving-transmitting (UART, Universal Asynchronous Receiver/Transmitter) mouth.
In one embodiment of the invention, above-mentioned microprocessor module comprises ARM (AdvanceRISC Machine) processor, single-chip microcomputer or field programmable logic device (FPGA, FieldProgrammable Gate Array).
In one embodiment of the invention, above-mentioned first module IO interface and the second module IO interface are winding displacement interface.
In one embodiment of the invention, above-mentioned LED display module also comprises: flash memory, is electrically connected described microprocessor module to be electrically connected to described first module IO interface by described first serial.
In one embodiment of the invention, above-mentioned LED display module also comprises: temperature collection circuit and voltage collection circuit, be electrically connected to described microprocessor module respectively; Described temperature collection circuit is used for showing module to described LED and carries out temperature acquisition for the working temperature detecting described LED display module; Whether extremely described voltage collection circuit shows module input service voltage for gathering described LED shows the input service voltage of module for detecting described LED.
In addition, a kind of LED that the embodiment of the present invention provides shows the condition detection method of module, be applied to a kind of LED display control program, described LED display control program comprises described LED display module is connected described LED display module LED display control card with by winding displacement; Described LED shows module and comprises: module displays driving circuit, microprocessor module and the first module IO interface; Described microprocessor module has a first serial and multiple I/O port, described first module IO interface is electrically connected the described first serial of described microprocessor module and the input end of described module displays driving circuit, and described multiple I/O port of described microprocessor module is electrically connected the output terminal of described module displays driving circuit.Described condition detection method comprises step: (a) receives from the data of described LED display control card and control signal by described first IO interface; B () is obtained one's own data and control signal in the described data and control signal received and carries out display driver to multiple LED points that described LED display module band carries by described module displays driving circuit; Whether c () inputs to the data of described multiple I/O port and control signal by described microprocessor module to the described output terminal from described module displays driving circuit to carry out validation checking abnormal to judge that described LED display control card and the described LED winding displacement shown between module connects; And the judged result in step (c) is sent to described LED display control card via described first module IO interface by the described first serial of described microprocessor module by (d).
In one embodiment of the invention, above-mentioned condition detection method also comprises step: enter spot check mode of operation by module displays driving circuit described in the data of described first IO interface input and control signal drived control, the multiple LED points carried to show module band to described LED carry out spot check and export the described multiple I/O port of spot check result data to described microprocessor module; And control described microprocessor module by the instruction that the first serial of described LED display control card and described microprocessor module is supplied to described microprocessor module the described spot check result data stored is sent to described LED display control card.
In one embodiment of the invention, above-mentioned condition detection method also comprises step: the instruction being supplied to described microprocessor module by the first serial of described LED display control card and described microprocessor module controls described microprocessor module and the temperature detection result obtained by temperature collection circuit and/or voltage collection circuit and/or input service voltage detecting result are sent to described LED display control card.
The embodiment of the present invention can realize LED by circuit design and show every state of module such as: the detection of winding displacement state, error detection (spot check), temperature, input service voltage or other information, can increase LED show module intelligent without the need to additional configuration monitor card.In addition, by flash memory is connected to microprocessor module, utilize serial communication can realize the management of module correction data, production information or out of Memory with less signal wire.
By the detailed description below with reference to accompanying drawing, other side of the present invention and feature become obvious.But it should be known that this accompanying drawing is only the object design of explanation, instead of as the restriction of scope of the present invention, this is because it should with reference to additional claim.Should also be appreciated that, unless otherwise noted, unnecessaryly draw accompanying drawing to scale, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the structural representation that traditional LED shows module.
Fig. 2 is the configuration diagram comprising the LED display control program of LED display module of the preferred embodiment of the present invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, are described in detail the specific embodiment of the present invention below in conjunction with accompanying drawing.
Refer to Fig. 2, in a kind of LED display control program that the preferred embodiment of the present invention provides, each LED shows module 10 (only illustrating in Fig. 2) and comprising: the first module IO interface 11, module displays driving circuit 13, second module IO interface 15, microprocessor module 17, temperature collection circuit 18a, voltage collection circuit 18b and flash storage (flash memory) 19; Particularly:
First module IO interface 11 is suitable for showing module with LED display control card or prime LED and is connected, such as, connected by winding displacement.First module IO interface 11 comprises module input interface section and serial ports part, wherein the input end of module input interface section electrical connection module displays driving circuit 13, the serial ports 1 of serial ports part electrical connection microprocessor module 17.
Module displays driving circuit 13 for show according to one's own data and control signal drived control LED in the data of input and control signal module 10 multiple LED points of carrying of band carry out showing and in spot check mode of operation, error detection (also i.e. so-called lamp point spot check) carried out to described multiple LED point, and the data of rear class LED display module (being electrically connected to the LED display module of the second module IO interface 15) will be belonged to and control signal exports the second module IO interface 15 to.Preferably, module displays driving circuit 13 comprises the LED display drive chip of support point checking functions.Herein, data and control signal comprise the control signal such as RGB data signal and clock signal clk, latch signal LAT, polarity selection signal OE.
Second module IO interface 15 is suitable for showing module with rear class LED and is connected, such as, connected by winding displacement.Second module IO interface 15 comprises module output interface part and serial ports part, wherein the output terminal of module output interface part electrical connection module displays driving circuit 13, the serial ports 2 of serial ports part electrical connection microprocessor module 17.At this, serial ports 2 is for being electrically connected with the serial ports 1 that rear class LED shows module.
Multiple I/O ports (I/O) of microprocessor module 17 are electrically connected the described output terminal of module displays driving circuit 13.Microprocessor module 17 is such as that the microprocessor being configured with multiple serial ports is such as configured with the arm processor of multiple serial ports, single-chip microcomputer or field programmable logic device (FPGA), also can be configured with the microprocessor of single serial ports and the combination of serial expanded circuit.In the present embodiment, described serial ports 1 and 2 is universal asynchronous receiving-transmitting (UART, UniversalAsynchronous Receiver/Transmitter) mouth.
Temperature collection circuit 18a such as comprises thermistor equitemperature sensor, and it shows the working temperature of module 10 for gathering LED and collection result be supplied to microprocessor module 17 for the working temperature detecting LED display module 10.
Voltage collection circuit 18b such as comprises conventional voltage sampling circuit, and it shows the input service voltage of module 10 for gathering LED and collection result be supplied to microprocessor module 17 for whether extremely detecting the input service voltage of LED display module 10.
Flash storage 19 is also flash memory, and its electrical connection microprocessor module 17 is to be electrically connected to the first module IO interface 11 by serial ports 1; So, LED display control card can by realizing with the serial ports 1 of microprocessor module 17 alternately to the read/write operation of flash storage 19; And serial ports 1 needs 2 signal wires, even only need a signal wire in a half-duplex mode, and the traffic rate of serial ports can reach 6Mbps (or higher), compared to the prior art shown in Fig. 1, flash memory being connected directly to module input interface, it can save signal wire quantity.
Principle of work and the process of LED display module is described in detail below in conjunction with Fig. 2:
I microprocessor module that upper level control module (LED display control card is generally receiving card or claims scanning card) and the LED of () LED display module 10 show on module has serial communication protocol.When multiple LED shows module cascade use, the microprocessor module 17 shown on module due to each LED has two serial ports to connect the first module IO interface 11 and the second module IO interface 15 respectively, microprocessor module 17 can realize the cascaded transmission of serial data by program, and upper level control module (LED display control card) can access the microprocessor module 17 that each LED shows module.
(ii) LED show microprocessor module 17 on module can according to the validation checking of its multiple I/O port (I/O) is inputed to the described output terminal from module displays driving circuit 13 data and control signal judge LED to show between module and LED display control card or and prime LED show winding displacement connection status between module whether exception, such as when detecting that the signal of certain I/O mouth is continuously logical zero within a certain period of time or is continuously logical one, then can judge accordingly signal wire that certain root in winding displacement is corresponding with this I/O mouth exist to open a way etc. abnormal, be understandable that herein, because the logic arrangement of each signal in data and control signal normally meets certain rule, therefore some abnormal signal situations can be prestored in microprocessor module 17, if find these abnormal case when carrying out signal validation checking, then can judge that winding displacement connection status is abnormal accordingly.
(iii) when the module displays driving circuit 13 in LED display module includes the LED display drive chip of support point checking functions, by certain specific time sequence of the control signal in the data of input and control signal trigger module display driver circuit 13 enter spot check mode of operation time, module displays driving circuit 13 can to LED show module 10 multiple LED points with carrying carry out spot check and export the spot check result data multiple I/O ports (I/O) to microprocessor module 17 by its output terminal, received by microprocessor module 17 and store spot check result data., such as represent LED point failure with binary zero in spot check result data herein, it is normal that binary one represents LED point.In addition, LED point herein can be red LED, green LED, blue led, other color LED or its combination in any.
(iv) the LED microprocessor module 17 shown on module can realize the collection of the signal such as temperature, input service voltage LED being shown to module 10 respectively by temperature collection circuit 18a, voltage collection circuit 18b, by can realize temperature detection LED being shown to module 10 to the judgement of the temperature signal collected, by can realize the stability of the input service voltage detecting LED display module 10 to the judgement of the input service voltage signal collected.
V () LED microprocessor module 17 shown on module can receive the passback of instruction execution winding displacement testing result, error-detection result (spot check result data), temperature detection result and the voltage detecting result that upper level control module (LED display control card) is sent by serial ports 1, or by the read/write of outside flash storage 19 to realize the read/write that LED shows the correction data of module 10, production information and other information, reach the object of information management whereby.
In addition, can draw from above-mentioned principle of work and process, the LED of the present embodiment shows the state-detection that module 10 can realize the LED such as winding displacement detection, LED point spot check (error detection), temperature detection and/or input service voltage detecting display module, what concrete state-detection process can show the principle of work of module 10 and process with reference to aforementioned LED describes part, does not repeat them here.
In other embodiments, LED shows module 10 when showing module without the need to cascade rear class LED, also can omit the second module IO interface 15; Correspondingly, microprocessor module 17 also can omit serial ports 2.
In sum, the above embodiment of the present invention can realize LED by circuit design and show every state of module such as: the detection of winding displacement state, error detection (spot check), temperature, input service voltage or other information, can increase LED show module intelligent without the need to additional configuration monitor card.In addition, by flash memory is connected to microprocessor module, utilize serial communication can realize the management of module correction data, production information or out of Memory with less signal wire.
So far, apply specific case herein and show the principle of module and condition detection method thereof to a kind of LED of the present invention and embodiment is set forth, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention; all will change in specific embodiments and applications; in sum, this description should not be construed as limitation of the present invention, and protection scope of the present invention should be as the criterion with appended claim.
Claims (10)
1. LED shows a module, comprises module displays driving circuit; It is characterized in that, also comprise:
Microprocessor module, has a first serial and multiple I/O port;
First module IO interface, comprise module input interface section and first serial part, described module input interface section is electrically connected the input end of described module displays driving circuit for inputting data and controlling signal to described module displays driving circuit, and described first serial part is electrically connected the described first serial of described microprocessor module;
Wherein, described multiple I/O port of described microprocessor module is electrically connected the output terminal of described module displays driving circuit for the data and the control signal that receive the output of described module displays driving circuit;
Whether described microprocessor module is abnormal to judge the connection state of described module input interface section for the validity of the data and control signal that detect the output of described module displays driving circuit, and/or carries out the spot check result data of spot check for the multiple LED points obtained from the data of described module displays driving circuit output and control signal described LED display module band carries when described module displays driving circuit is in spot check mode of operation and store.
2. LED as claimed in claim 1 shows module, it is characterized in that, described microprocessor module also has a second serial, described LED shows module and also comprises the second module IO interface, described second module IO interface comprises module output interface part and second serial part, described module output interface part is electrically connected the described output terminal of described module displays driving circuit for the data and the control signal that receive the output of described module displays driving circuit, and described second serial part is electrically connected the described second serial of described microprocessor module.
3. LED as claimed in claim 2 shows module, and it is characterized in that, described first serial and described second serial are universal asynchronous receiving-transmitting (UART) mouth.
4. LED as claimed in claim 2 shows module, and it is characterized in that, described first module IO interface and described second module IO interface are winding displacement interface.
5. LED as claimed in claim 1 shows module, and it is characterized in that, described microprocessor module comprises arm processor, single-chip microcomputer or field programmable logic device (FPGA).
6. LED as claimed in claim 1 shows module, it is characterized in that, also comprises: flash memory, be electrically connected described microprocessor module to be electrically connected to described first module IO interface by described first serial.
7. LED as claimed in claim 1 shows module, it is characterized in that, also comprises: temperature collection circuit and voltage collection circuit, be electrically connected to described microprocessor module respectively; Described temperature collection circuit is used for showing module to described LED and carries out temperature acquisition for the working temperature detecting described LED display module; Whether extremely described voltage collection circuit shows module input service voltage for gathering described LED shows the input service voltage of module for detecting described LED.
8. the condition detection method of a LED display module, be applied to a kind of LED display control program, described LED display control program comprises described LED display module is connected described LED display module LED display control card with by winding displacement, and described LED shows module and comprises module displays driving circuit, microprocessor module and the first module IO interface; Described microprocessor module has a first serial and multiple I/O port, described first module IO interface is electrically connected the described first serial of described microprocessor module and the input end of described module displays driving circuit, and described multiple I/O port of described microprocessor module is electrically connected the output terminal of described module displays driving circuit; Described condition detection method comprises step:
A () receives from the data of described LED display control card and control signal by described first IO interface;
B () is obtained one's own data and control signal in the described data and control signal received and carries out display driver to multiple LED points that described LED display module band carries by described module displays driving circuit;
Whether c () inputs to the data of described multiple I/O port and control signal by described microprocessor module to the described output terminal from described module displays driving circuit to carry out validation checking abnormal to judge that described LED display control card and the described LED winding displacement shown between module connects; And
D judged result in step (c) is sent to described LED display control card via described first module IO interface by the described first serial of described microprocessor module by ().
9. condition detection method as claimed in claim 8, is characterized in that, also comprise step:
Enter spot check mode of operation by module displays driving circuit described in the data of described first IO interface input and control signal drived control, the multiple LED points carried to show module band to described LED carry out spot check and export the described multiple I/O port of spot check result data to described microprocessor module;
The instruction being supplied to described microprocessor module by the first serial of described LED display control card and described microprocessor module controls described microprocessor module and the described spot check result data stored is sent to described LED display control card.
10. condition detection method as claimed in claim 8, is characterized in that, also comprise step:
The instruction being supplied to described microprocessor module by the first serial of described LED display control card and described microprocessor module controls described microprocessor module and the temperature detection result obtained by temperature collection circuit and/or voltage collection circuit and/or input service voltage detecting result is sent to described LED display control card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214691.XA CN104795025B (en) | 2015-04-29 | 2015-04-29 | LED display modules and its condition detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510214691.XA CN104795025B (en) | 2015-04-29 | 2015-04-29 | LED display modules and its condition detection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104795025A true CN104795025A (en) | 2015-07-22 |
| CN104795025B CN104795025B (en) | 2017-10-17 |
Family
ID=53559792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510214691.XA Active CN104795025B (en) | 2015-04-29 | 2015-04-29 | LED display modules and its condition detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104795025B (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047135A (en) * | 2015-08-20 | 2015-11-11 | 西安诺瓦电子科技有限公司 | Lamp panel module group, box body, and LED display screen system |
| CN105070238A (en) * | 2015-07-29 | 2015-11-18 | 西安诺瓦电子科技有限公司 | LED module light-out detection circuit, LED module and light-out detection method thereof |
| CN105070240A (en) * | 2015-09-14 | 2015-11-18 | 东莞市亚通光电有限公司 | Circuit structure used for detecting backlight module |
| CN105261329A (en) * | 2015-11-26 | 2016-01-20 | 西安诺瓦电子科技有限公司 | Multi-LED display module management method |
| CN105357799A (en) * | 2015-11-26 | 2016-02-24 | 西安诺瓦电子科技有限公司 | LED display module management apparatus |
| CN106338941A (en) * | 2016-09-13 | 2017-01-18 | 深圳市洲明科技股份有限公司 | Monitoring system of LED display screen and monitoring method thereof |
| CN107705741A (en) * | 2017-09-07 | 2018-02-16 | 西安诺瓦电子科技有限公司 | Data input o controller and data input and output control method |
| CN108109567A (en) * | 2017-12-27 | 2018-06-01 | 苏州华兴源创电子科技有限公司 | A kind of LCD module group aging test device and include its equipment |
| 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 |
| CN110996438A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Display device and method based on IO module and robot |
| CN111968593A (en) * | 2020-09-08 | 2020-11-20 | 河源思比电子有限公司 | Split-screen display driving method of ultra-clear liquid crystal module |
| CN112463183A (en) * | 2019-09-06 | 2021-03-09 | 西安诺瓦星云科技股份有限公司 | Display control card aging detection method, device and system and computer readable medium |
| CN112685266A (en) * | 2020-11-30 | 2021-04-20 | 浙江大华技术股份有限公司 | Fault detection method, device, system, equipment and medium |
| CN113223446A (en) * | 2020-01-20 | 2021-08-06 | 西安诺瓦星云科技股份有限公司 | Display module controller and display system |
| CN113438064A (en) * | 2021-08-26 | 2021-09-24 | 德氪微电子(深圳)有限公司 | Data transmission method, backboard, display device and computer readable storage medium |
| CN114026534A (en) * | 2019-08-13 | 2022-02-08 | 三星电子株式会社 | Display device and control method thereof |
| CN117037654A (en) * | 2023-08-25 | 2023-11-10 | 北京显芯科技有限公司 | Backlight module detection method, IC chip and backlight module |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10116040A (en) * | 1996-10-11 | 1998-05-06 | Nippon Signal Co Ltd:The | Led display device with state detective function |
| CN101763799A (en) * | 2009-11-19 | 2010-06-30 | 深圳市元亨光电股份有限公司 | Remote detection system and method of LED information terminals |
| CN201829169U (en) * | 2010-04-19 | 2011-05-11 | 天津市协力光电有限公司 | Ultra large light-emitting diode (LED) full-color display system with pixel detection function |
| CN201838296U (en) * | 2010-10-09 | 2011-05-18 | 深圳市洲明科技股份有限公司 | Automatic dead pixel detecting device of LED (light-emitting diode) display |
| CN203118405U (en) * | 2012-12-25 | 2013-08-07 | 深圳市金立翔科技有限公司 | Led monitoring module and led display module |
| CN103500542A (en) * | 2013-09-26 | 2014-01-08 | 西安诺瓦电子科技有限公司 | Led lamp panel |
| CN203397666U (en) * | 2013-07-09 | 2014-01-15 | 中山市晶威电子科技有限公司 | LED display based on LED on-line state detection to realize mode output |
| CN103943069A (en) * | 2014-05-06 | 2014-07-23 | 西安诺瓦电子科技有限公司 | LED lamp panel, LED display screen control card and LED display screen system |
| CN103985357A (en) * | 2014-05-27 | 2014-08-13 | 西安诺瓦电子科技有限公司 | LED lamp panel, tail end terminating module, LED control card and LED display system |
| CN104021748A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | LED display screen dead point detecting system |
| CN104112413A (en) * | 2013-04-17 | 2014-10-22 | 深圳市德彩光电有限公司 | LED display screen dead pixel point inspection system |
-
2015
- 2015-04-29 CN CN201510214691.XA patent/CN104795025B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10116040A (en) * | 1996-10-11 | 1998-05-06 | Nippon Signal Co Ltd:The | Led display device with state detective function |
| CN101763799A (en) * | 2009-11-19 | 2010-06-30 | 深圳市元亨光电股份有限公司 | Remote detection system and method of LED information terminals |
| CN201829169U (en) * | 2010-04-19 | 2011-05-11 | 天津市协力光电有限公司 | Ultra large light-emitting diode (LED) full-color display system with pixel detection function |
| CN201838296U (en) * | 2010-10-09 | 2011-05-18 | 深圳市洲明科技股份有限公司 | Automatic dead pixel detecting device of LED (light-emitting diode) display |
| CN203118405U (en) * | 2012-12-25 | 2013-08-07 | 深圳市金立翔科技有限公司 | Led monitoring module and led display module |
| CN104112413A (en) * | 2013-04-17 | 2014-10-22 | 深圳市德彩光电有限公司 | LED display screen dead pixel point inspection system |
| CN203397666U (en) * | 2013-07-09 | 2014-01-15 | 中山市晶威电子科技有限公司 | LED display based on LED on-line state detection to realize mode output |
| CN103500542A (en) * | 2013-09-26 | 2014-01-08 | 西安诺瓦电子科技有限公司 | Led lamp panel |
| CN103943069A (en) * | 2014-05-06 | 2014-07-23 | 西安诺瓦电子科技有限公司 | LED lamp panel, LED display screen control card and LED display screen system |
| CN103985357A (en) * | 2014-05-27 | 2014-08-13 | 西安诺瓦电子科技有限公司 | LED lamp panel, tail end terminating module, LED control card and LED display system |
| CN104021748A (en) * | 2014-06-18 | 2014-09-03 | 无锡市崇安区科技创业服务中心 | LED display screen dead point detecting system |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070238A (en) * | 2015-07-29 | 2015-11-18 | 西安诺瓦电子科技有限公司 | LED module light-out detection circuit, LED module and light-out detection method thereof |
| CN105047135A (en) * | 2015-08-20 | 2015-11-11 | 西安诺瓦电子科技有限公司 | Lamp panel module group, box body, and LED display screen system |
| CN105070240A (en) * | 2015-09-14 | 2015-11-18 | 东莞市亚通光电有限公司 | Circuit structure used for detecting backlight module |
| CN105261329A (en) * | 2015-11-26 | 2016-01-20 | 西安诺瓦电子科技有限公司 | Multi-LED display module management method |
| CN105357799A (en) * | 2015-11-26 | 2016-02-24 | 西安诺瓦电子科技有限公司 | LED display module management apparatus |
| CN105261329B (en) * | 2015-11-26 | 2018-02-16 | 西安诺瓦电子科技有限公司 | More LED display modules management methods |
| CN106338941A (en) * | 2016-09-13 | 2017-01-18 | 深圳市洲明科技股份有限公司 | Monitoring system of LED display screen and monitoring method thereof |
| CN107705741A (en) * | 2017-09-07 | 2018-02-16 | 西安诺瓦电子科技有限公司 | Data input o controller and data input and output control method |
| CN108109567A (en) * | 2017-12-27 | 2018-06-01 | 苏州华兴源创电子科技有限公司 | A kind of LCD module group aging test device and include its equipment |
| 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 |
| CN114026534A (en) * | 2019-08-13 | 2022-02-08 | 三星电子株式会社 | Display device and control method thereof |
| CN112463183A (en) * | 2019-09-06 | 2021-03-09 | 西安诺瓦星云科技股份有限公司 | Display control card aging detection method, device and system and computer readable medium |
| CN110996438A (en) * | 2019-11-12 | 2020-04-10 | 珠海格力电器股份有限公司 | Display device and method based on IO module and robot |
| CN110996438B (en) * | 2019-11-12 | 2020-11-24 | 珠海格力电器股份有限公司 | Display device and method based on IO module and robot |
| CN113223446A (en) * | 2020-01-20 | 2021-08-06 | 西安诺瓦星云科技股份有限公司 | Display module controller and display system |
| CN111968593A (en) * | 2020-09-08 | 2020-11-20 | 河源思比电子有限公司 | Split-screen display driving method of ultra-clear liquid crystal module |
| CN112685266A (en) * | 2020-11-30 | 2021-04-20 | 浙江大华技术股份有限公司 | Fault detection method, device, system, equipment and medium |
| CN113438064A (en) * | 2021-08-26 | 2021-09-24 | 德氪微电子(深圳)有限公司 | Data transmission method, backboard, display device and computer readable storage medium |
| CN117037654A (en) * | 2023-08-25 | 2023-11-10 | 北京显芯科技有限公司 | Backlight module detection method, IC chip and backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104795025B (en) | 2017-10-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104795025A (en) | LED display module and method for detecting states thereof | |
| CN103680411B (en) | A kind of LED shows single wire transmission circuit and the method for module single point correction data | |
| CN105261329A (en) | Multi-LED display module management method | |
| US7673092B2 (en) | PCI Express interface | |
| CN103533727B (en) | LED (light-emitting diode) light panel and LED display screen system | |
| CN103500552B (en) | LED display control card | |
| CN103500553B (en) | LED (Light Emitting Diode) display screen system | |
| CN103500542B (en) | Led lamp panel | |
| CN105047135A (en) | Lamp panel module group, box body, and LED display screen system | |
| CN107403601A (en) | A kind of display driver chip and terminal device | |
| CN203573621U (en) | LED lamp panel and LED display screen | |
| CN109446142A (en) | Electronic equipment, mainboard and control method | |
| CN113626360B (en) | Low-speed MIPI observation type SOC chip and operation method thereof | |
| CN105357799A (en) | LED display module management apparatus | |
| CN101163308A (en) | Intelligent platform management controller | |
| CN109063459A (en) | A kind of USB device filter device and method | |
| CN1893605B (en) | Electronic apparatus and control method thereof | |
| CN104050921B (en) | Show control and monitor component and display system | |
| CN103229158A (en) | Control circuit and control method for inter-integrated circuit bus | |
| CN203706639U (en) | Single-line transmission circuit for LED display module single-point correction data | |
| CN105070238A (en) | LED module light-out detection circuit, LED module and light-out detection method thereof | |
| CN103687226B (en) | A kind of parallel connection lamp control system and sub-controller thereof | |
| JPH02285748A (en) | Transmission controller for optical fiber | |
| US10120828B2 (en) | Bridge for bus-powered peripheral device power management | |
| WO2019185031A1 (en) | Optical module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710075 DEF101, Zero One Square, Xi'an Software Park, No. 72 Zhangbajie Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee after: XI'AN NOVASTAR TECH Co.,Ltd. Address before: 710075 Qinfengge D District 401, Xi'an Software Park, 68 Science and Technology Second Road, Xi'an High-tech Zone, Shaanxi Province Patentee before: Xi'an NovaStar Tech Co.,Ltd. |