CN202758557U - Light-emitting diode (LED) dot matrix module and LED display screen - Google Patents
Light-emitting diode (LED) dot matrix module and LED display screen Download PDFInfo
- Publication number
- CN202758557U CN202758557U CN2012203784498U CN201220378449U CN202758557U CN 202758557 U CN202758557 U CN 202758557U CN 2012203784498 U CN2012203784498 U CN 2012203784498U CN 201220378449 U CN201220378449 U CN 201220378449U CN 202758557 U CN202758557 U CN 202758557U
- Authority
- CN
- China
- Prior art keywords
- led
- lattice module
- driving chip
- dot matrix
- led lattice
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
Abstract
The embodiment of the utility model discloses a light-emitting diode (LED) dot matrix module which comprises a circuit board and LED wafers arranged on one side of the circuit board. The surfaces of the LED wafers are coated with protection glue. The other side of the circuit board is opposite to the LED wafers and is provided with a driver chip and a signal pin which is electrically connected with the driver chip and an external controlling system. At the same time, the utility model further discloses an LED display screen. The LED display screen comprises a plurality of the LED dot matrix modules, wherein the LED dot matrix modules are spliced in sequence. The driver chip is directly arranged on the circuit board in the LED dot matrix module, and the LED dot matrix module is connected with the external control system through the signal pin to control the LED wafers through the driver chip. Consequently, the LED dot matrix module is simple in structure, few in connection circuits, high in stability and capable of increasing the arranging amount of the LED wafers, improves the evenness of the LED display screen, corrects a coefficient memory and eliminates an implicit circuit through the arrangement of chromaticity and brightness, and improves the overall display effect of the LED display screen.
Description
Technical field
The utility model relates to the electronic display technical field, relates in particular to a kind of LED lattice module and LED display thereof.
Background technology
In today of scientific and technological high speed development, the demand of the indoor display screens such as billboard, TV screen, hardtop is increasing, traditional CRT monitor, rear projection display and liquid crystal display are subjected to size restrictions not become giant-screen by seamless assembled, and brightness is low, GTG is low, viewing distance is limited, can not satisfy people's user demand, the little space distance LED display screen that arises at the historic moment well addresses the above problem.
Little space distance LED display screen is spliced by some LED lattice modules usually, existing LED lattice module is made of wiring board, LED wafer and plastic mask usually, each base pixel must have data-interface and external circuit to join, its circuit is intensive, data-interface and the PCB number of plies is many, soldering reliability is low, cost is high, and module base pixel point is few, the display screen poor flatness.And it needs first wiring board and plastic mask to be fixed when making, and decides the LED wafer by pad nation in the plastic mask through hole again.The nation of this LED lattice module decides the technological requirement height, if run into the damage of LED wafer, must remove plastic mask, keeps in repair the LED wafer again, and test and maintenance is complicated, and cost of manufacture is high.
The utility model content
The utility model embodiment technical matters to be solved is, a kind of LED lattice module is provided, and simple in structure, cost of manufacture is low.
The further technical matters to be solved of the utility model embodiment is to provide a kind of LED display, and simple in structure, display effect is good.
In order to solve the problems of the technologies described above; the utility model embodiment has proposed a kind of LED lattice module; comprise wiring board and be arranged at the LED wafer of described wiring board one side; described LED wafer surface is coated with protection glue; the another side with respect to described LED wafer of described wiring board is provided with the driving chip, and the signal pins that is electrically connected with described driving chip and external control system respectively.
Further, described signal pins is straight cutting signal pins or pad signal pin.
Further, described driving chip is connected with control signal output port and the serial data signal output port of described external control system by described signal pins.
Further, described driving chip be provided with link to each other with described external control system to store the colourity that obtains after described external control system is proofreaied and correct described LED lattice module and the storer of brightness correction coefficients.
Further, described driving chip is connected with one by described signal pins and removes blanking circuit.
Further, described driving chip connects output port of power source by described signal pins.
Further, described LED wafer is monochromatic, double-colored or three-color light-emitting diode.
Further, described light emitting diode is direct insertion LED or paster type light emitting type.
Further, described protection glue is organic silica gel, epoxide-resin glue, polyurethane resin adhesive or without shadow glue.
Correspondingly, the utility model embodiment also provides a kind of LED display, comprises the aforesaid LED lattice module of some splicings.
The beneficial effect of the utility model embodiment is: drive chip and connect external control system by signal pins by arranging on wiring board, directly utilize and drive chip controls LED wafer, effectively reduce the wiring board number of plies and the number of ports of LED lattice module, connection line is few, soldering reliability is high, and cost is low, and can realize the setting of more LED wafers, the integral smoothness of Effective Raise LED display, and then the whole visual effect of reinforcement LED display; The chroma luminance correction coefficient memory is set simultaneously, utilizes the chroma luminance alignment technique, improve the uniformity coefficient of LED display, and remove blanking circuit by setting, thoroughly avoid occurring on the LED display return line, further improve the whole display effect of display screen.
Description of drawings
Fig. 1 is the stereographic map of the LED lattice module of the utility model embodiment.
Fig. 2 is the explosive view of the LED lattice module of the utility model embodiment.
Fig. 3 is the structural representation of a kind of embodiment of LED lattice module of the utility model embodiment.
Fig. 4 is the structural representation of the another kind of embodiment of LED lattice module of the utility model embodiment.
Fig. 5 is the circuit block diagram of the LED lattice module of the utility model embodiment.
Fig. 6 is the process flow diagram of the LED lattice module manufacture method of the utility model embodiment.
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can mutually combine, and below in conjunction with the drawings and specific embodiments the utility model are described in further detail.
Such as Fig. 1 ~ shown in Figure 5, the utility model embodiment provides a kind of LED display and LED lattice module thereof.Described LED display is comprised of some described LED lattice module splicings.
See also Fig. 1, Fig. 2, described LED lattice module comprises wiring board 1, LED wafer 2, protection glue 3, drives chip 4 and signal pins 5.
Described LED wafer 2 is arranged at a side of described wiring board 1, the pixel cell formation of being arranged by some rules.Among the utility model embodiment, be provided with the wafer pad that matrix is arranged on the described wiring board 1, described LED wafer 2 rectangular arrays are arranged on the described wiring board 1.Described LED wafer 2 can be set to direct insertion or SMD.
Understandable, described pixel unit is the general monochrome of LED display, double-colored or three-color light-emitting diode.Among the utility model embodiment, described pixel unit is set to redness, green, blue three-color light-emitting diode, to realize full-color display effect.As a kind of embodiment, the described pixel unit of the utility model embodiment also can be set to single color LED and show to provide monochromatic, perhaps, also can be set to dichromatic LED so that double-colored demonstration to be provided.
Described protection glue 3 is coated on described LED wafer 2 outside surfaces, and it can be organic silica gel, epoxide-resin glue, polyurethane resin adhesive or without shadow glue.The protective seam that described protection glue 3 can be used as described LED wafer 2 on the one hand is set; with water proof and dust proof; on the other hand; can be in its solidification process; utilize specific processing mold that curved surface forming is carried out forming curved luminous lens in its surface, thereby make described LED wafer 2 obtain the better light effect that goes out by described protection glue 3.
Described driving chip 4 and signal pins 5 are arranged at the another side with respect to described LED wafer 2 of described wiring board 1, are preset with the pin via hole be used to the chip bonding pad that welds described driving chip 4 and fixing described signal pins 5 on the corresponding side surface of described wiring board 1.Described signal pins 5 is electrically connected with described driving chip 4 and external control system 6 respectively, to give described driving chip 4 with the control data information transfer of described external control system 6.As shown in Figure 3, Figure 4, described signal pins 5 can be set to straight cutting signal pins or pad signal pin.
Please refer to Fig. 5, described signal pins 5 is connected to receive control signal and the serial data signal that is sent by described external control system 6 with control signal output port and the serial data signal output port of described external control system 6.Be provided with driving circuit 41 on the described driving chip 4, and the control signal and the serial data signal that receive by described signal pins 5 transmission operate to control described LED wafer 2.Meanwhile, described signal pins 5 output port that also is connected to power supply 7 thinks that described LED lattice module provides power supply.
Be the demonstration uniformity coefficient of the described LED display of Effective Raise, be provided with on the described driving chip 4 link to each other with described external control system 6 to store the colourity that obtains after the described LED lattice modules of 6 pairs of described external control systems are proofreaied and correct and the storer 42 of brightness correction coefficients.
Meanwhile, described driving circuit 41 also is connected with the blanking circuit 8 that goes of a row and column by described signal pins 5, the described LED lattice module of the utility model embodiment, effectively avoid return line occurring on the described LED display by the described blanking circuit 8 that goes is set, further improve the whole display effect of described LED display.
Below, the making flow process of the described LED lattice module of the utility model embodiment is described in further detail, please refer to Fig. 6, the manufacture method of the described LED lattice module of the utility model embodiment mainly may further comprise the steps:
Step 101 adopts the Reflow Soldering welding technology described driving chip 4 to be welded in a side of described wiring board 1;
Step 102 is cleaned described wiring board 1;
Step 103 is fixed in the side that described wiring board 1 is welded with described driving chip 4 with described signal pins 5;
Step 104 adopts the nation of die bond bonding wire to decide the another side with respect to described driving chip 4 that technique is fixed in described LED wafer 2 described wiring board 1;
Step 105 is tested described LED wafer 2;
Step 106 after the test passes, adopts frock clamp to encapsulate to form described LED lattice module in the described described protection glue 3 of LED wafer 2 surperficial drops and after the heating cure moulding.
Need to prove that when making described LED lattice module, described wiring board 1 is preset with the pin via hole according to design proposal, and is preset with the wafer pad that rectangular array is arranged in the one side, be preset with chip bonding pad in its another side simultaneously.
The described LED lattice module of the utility model embodiment, by being set on described wiring board 1, driving chip 4 also operates with direct driving LED wafer 2 by control signal and the serial data signal of signal pins 5 reception external control systems 6, connection line is few, manufacture craft is simple, cost is low, can realize the setting of more LED wafers 2, the integral smoothness of Effective Raise LED display and display effect, stability is high; In driving on the chip 4 chroma luminance correction coefficient memory 42 is set simultaneously, utilize the chroma luminance alignment technique, the demonstration uniformity coefficient of Effective Raise LED display, and remove blanking circuit 8 by setting, thoroughly avoid occurring return line on the LED display, so that LED display shows that clear picture is fine and smooth, rich color.
Understandable, described LED lattice module can be separately uses as a compact LED display screen, also can be used as basic components and forms monochromatic, double-colored or the large tracts of land of full color, the large LED display screen of high definition by splicing and combining.
Although illustrated and described embodiment of the present utility model, for the ordinary skill in the art, be appreciated that in the situation that does not break away from principle of the present utility model and spirit and can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present utility model is limited by claims and equivalency range thereof.
Claims (10)
1. LED lattice module; comprise wiring board and be arranged at the LED wafer of described wiring board one side; it is characterized in that; described LED wafer surface is coated with protection glue; the another side with respect to described LED wafer of described wiring board is provided with the driving chip, and the signal pins that is electrically connected with described driving chip and external control system respectively.
2. LED lattice module as claimed in claim 1 is characterized in that, described signal pins is straight cutting signal pins or pad signal pin.
3. LED lattice module as claimed in claim 1 is characterized in that, described driving chip is connected with control signal output port and the serial data signal output port of described external control system by described signal pins.
4. LED lattice module as claimed in claim 3, it is characterized in that, described driving chip be provided with link to each other with described external control system to store the colourity that obtains after described external control system is proofreaied and correct described LED lattice module and the storer of brightness correction coefficients.
5. LED lattice module as claimed in claim 1 is characterized in that, described driving chip is connected with one by described signal pins and removes blanking circuit.
6. LED lattice module as claimed in claim 1 is characterized in that, described driving chip connects output port of power source by described signal pins.
7. LED lattice module as claimed in claim 1 is characterized in that, described LED wafer is monochromatic, double-colored or three-color light-emitting diode.
8. LED lattice module as claimed in claim 7 is characterized in that, described light emitting diode is direct insertion LED or paster type light emitting type.
9. LED lattice module as claimed in claim 1 is characterized in that, described protection glue is organic silica gel, epoxide-resin glue, polyurethane resin adhesive or without shadow glue.
10. a LED display is characterized in that, comprise some splicings such as each described LED lattice module in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203784498U CN202758557U (en) | 2012-08-01 | 2012-08-01 | Light-emitting diode (LED) dot matrix module and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203784498U CN202758557U (en) | 2012-08-01 | 2012-08-01 | Light-emitting diode (LED) dot matrix module and LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758557U true CN202758557U (en) | 2013-02-27 |
Family
ID=47737726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203784498U Expired - Fee Related CN202758557U (en) | 2012-08-01 | 2012-08-01 | Light-emitting diode (LED) dot matrix module and LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758557U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413525A (en) * | 2013-08-16 | 2013-11-27 | 西安诺瓦电子科技有限公司 | LED lamp panel, LED box and LED display screen |
| CN103474000A (en) * | 2013-08-28 | 2013-12-25 | 深圳市奥拓电子股份有限公司 | Super-small-point-interval SMD (surface mounted device) composited LED lamp |
| CN104091538A (en) * | 2014-07-10 | 2014-10-08 | 福建华瀚明光电科技有限公司 | LED dot matrix module and production technology thereof |
| CN106128321A (en) * | 2016-08-26 | 2016-11-16 | 中山市佑阳光电科技有限公司 | Drive the LED digital display screen controlled |
| CN108230936A (en) * | 2018-03-22 | 2018-06-29 | 深圳市九洲光电科技有限公司 | A kind of encapsulating structure and its processing method for having data-transformation facility |
| CN108510902A (en) * | 2018-05-18 | 2018-09-07 | 江门吉华光电精密有限公司 | A kind of multipoint mode LED dot matrix charactron and its production technology |
-
2012
- 2012-08-01 CN CN2012203784498U patent/CN202758557U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413525A (en) * | 2013-08-16 | 2013-11-27 | 西安诺瓦电子科技有限公司 | LED lamp panel, LED box and LED display screen |
| CN103474000A (en) * | 2013-08-28 | 2013-12-25 | 深圳市奥拓电子股份有限公司 | Super-small-point-interval SMD (surface mounted device) composited LED lamp |
| CN104091538A (en) * | 2014-07-10 | 2014-10-08 | 福建华瀚明光电科技有限公司 | LED dot matrix module and production technology thereof |
| CN104091538B (en) * | 2014-07-10 | 2016-08-31 | 东莞市光劲光电有限公司 | A kind of LED dot array module and production technology thereof |
| CN106128321A (en) * | 2016-08-26 | 2016-11-16 | 中山市佑阳光电科技有限公司 | Drive the LED digital display screen controlled |
| CN108230936A (en) * | 2018-03-22 | 2018-06-29 | 深圳市九洲光电科技有限公司 | A kind of encapsulating structure and its processing method for having data-transformation facility |
| CN108230936B (en) * | 2018-03-22 | 2023-10-27 | 深圳市九洲光电科技有限公司 | Packaging structure with data transmission function and processing method thereof |
| CN108510902A (en) * | 2018-05-18 | 2018-09-07 | 江门吉华光电精密有限公司 | A kind of multipoint mode LED dot matrix charactron and its production technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202758557U (en) | Light-emitting diode (LED) dot matrix module and LED display screen | |
| JP7004777B2 (en) | Color ILED display on silicon | |
| CN110783324B (en) | High-density Micro LED sandwich structure active driving display unit | |
| WO2023065488A1 (en) | Display module and seamless splicing display device | |
| CN203800046U (en) | Combined diver board type LED packaging device | |
| CN201910207U (en) | High-density full-color LED (light-emitting diode) display plate | |
| WO2021103132A1 (en) | Display panel and display device | |
| KR20090080196A (en) | Backlight unit and display device including the same | |
| CN102034451A (en) | Liquid crystal display device | |
| CN214428633U (en) | Lamp panel | |
| CN111312090A (en) | Display panel, manufacturing method thereof and display device | |
| CN204463726U (en) | LED display and module group substrates | |
| CN109920344A (en) | A kind of seamless spliced Micro LED display | |
| TWI426480B (en) | Display apparatus and manufacturing method thereof | |
| CN204463727U (en) | Led display module | |
| CN103996676B (en) | A kind of LED encapsulation structure | |
| CN101692330B (en) | Color sequence liquid crystal display device and stereoscopic image display method | |
| CN212277196U (en) | Integrated packaged LED display panel | |
| CN114171508A (en) | Spliced screen, preparation method thereof and display device | |
| CN104183586A (en) | Light-emitting diode display array of vertical structure | |
| CN101285972B (en) | Joining method, display apparatus and display | |
| CN210606407U (en) | LED display device and LED display screen formed by same | |
| CN209641250U (en) | LED upside-down mounting display screen | |
| CN105788472A (en) | Module base plate and display device | |
| CN114764997A (en) | LED display structure, display module and LED display screen |
Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20200801 |