CN109830187A - A kind of flexible LED display screen - Google Patents
A kind of flexible LED display screen Download PDFInfo
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- CN109830187A CN109830187A CN201910292569.2A CN201910292569A CN109830187A CN 109830187 A CN109830187 A CN 109830187A CN 201910292569 A CN201910292569 A CN 201910292569A CN 109830187 A CN109830187 A CN 109830187A
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- Prior art keywords
- driving chip
- flexible
- display screen
- led
- led display
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 8
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012536 packaging technology Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The present invention provides a kind of flexible LED display screens, comprising: flexible parent metal and multiple LED units, LED unit include driving chip and LED lamp, and driving chip and LED lamp are fixed on flexible parent metal by serial signal line cascade and by COB technique；2 serial input terminals, 1 serial output terminal are set on driving chip.Flexible LED display screen provided by the invention reduces pel spacing and can effectively avoid serial signal line breaking, and flexible parent metal makes display screen more flexible with scene, brings better display effect.
Description
Technical field
The present invention relates to field of display technology, and in particular to a kind of flexible LED display screen of COB encapsulation.
Background technique
Traditional display screen is packaged by LED lamp and driving chip in advance and then is welded on pcb board, the material of pcb board
Matter allows display screen to be difficult flexibly to be used in different display scenes, and the shell encapsulated occupies space, will lead to pixel
Point spacing is excessive, and display effect is undesirable.
Therefore, it is necessary to a kind of new display screens to substitute traditional display screen.
Summary of the invention
The application's is designed to provide a kind of flexible LED display screen, ineffective for solving traditional display screen application scenarios
It is living, the undesirable problem of display effect.
To achieve the goals above, this application provides following technical schemes:
First aspect: this application provides a kind of flexible LED display screen, the flexible LED display screen includes: flexible parent metal, more
A LED unit, the LED unit include driving chip and LED lamp, and the driving chip connects with LED lamp and passes through COB
Technique is fixed on flexible parent metal.
The display screen of above scheme design, is encapsulated in soft by the technique that driving chip and LED lamp are directly passed through COB
Property substrate on, eliminate the shell of traditional LED lamp encapsulation, reduce pel spacing, while tradition is replaced using flexible parent metal
Pcb board so that display applications scene is more abundant, transparent material is also can be used in flexible parent metal, and display effect is compared to tradition
Display screen has significant progress.
In the optional embodiment of first aspect, the flexible parent metal includes etched circuit and is used for described in fixation
The pad of LED lamp and the driving chip.
In the optional embodiment of first aspect, the driving chip includes 2 serial input terminals and 1 Serial output
End, the serial input terminal are connect with higher level and top-ranking's driving chip respectively, the serial output terminal and junior and lower-level
Driving chip connection.
In the display screen of above scheme design, each driving chip receives the output letter of higher level and top-ranking's driving chip
Number, in this way in the display screen course of work, even if there is a situation where the open circuit of some driving chip, the junior of breaking driving chip
Driving chip can also be worked on by receiving the output signal of top-ranking's driving chip.
In the optional embodiment of first aspect, the LED lamp includes red chip, Green Chip and blue core
Piece.
In the optional embodiment of first aspect, the LED unit surrounding package has the transparency material to shield.
Transparency material can choose epoxy resin or silica gel.
In the optional embodiment of first aspect, the LED unit also includes decoupling capacitor.
In the optional embodiment of first aspect, LED unit also includes the resistance for adjusting driving chip electric current, institute
Resistance is stated to connect with the driving chip.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the application
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose, the feature and advantage of the application will be more clear.In whole
Identical appended drawing reference indicates identical part in attached drawing.Attached drawing, emphasis deliberately are not drawn by actual size equal proportion scaling
It is that the purport of the application is shown.
Fig. 1 is the LED unit schematic diagram that first embodiment of the invention provides；
Fig. 2 is the driving chip connection schematic diagram that first embodiment of the invention provides；
Fig. 3 is the flexible screen schematic diagram that first embodiment of the invention provides.
Icon: 11- driving chip；12-LED wick；121- blue chip；122- Green Chip；123- red chip；
21-GND pad；22-VCC pad；3- flexible parent metal.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application embodiment clearer, implement below in conjunction with the application
The technical solution in the application embodiment is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is a part of embodiment of the application, rather than whole embodiments.Based on the embodiment in the application, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the application
The range of protection.Therefore, the detailed description of the presently filed embodiment provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present application of protection is sought, but is merely representative of the selected embodiment of the application.Based on the embodiment in the application,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Apply for the range of protection.
In the description of the present application, it is to be understood that term " center ", " length ", " width ", " thickness ", "upper",
The orientation or positional relationship of the instructions such as "lower", "front", "rear", "left", "right", "inner", "outside" is orientation based on the figure
Or positional relationship, it is merely for convenience of description the application and simplifies description, rather than the equipment or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can be expressed
Or implicitly include one or more of the features.In the description of the present application, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be direct phase
Even, can also indirectly connected through an intermediary, the interaction that can be connection or two elements inside two elements is closed
System.For the ordinary skill in the art, above-mentioned term in this application specific can be understood as the case may be
Meaning.
In this application unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
As shown in figure 3, the application provides a kind of flexible LED display screen, comprising: flexible parent metal 3 and multiple LED units.Its
In, as shown in Figure 1, LED unit includes driving chip 11 and LED lamp 12, driving chip 11 and LED lamp 12 connect and pass through
COB technique is fixed on flexible parent metal.The packaging technology of COB, conventional selection have two kinds of techniques of formal dress and upside-down mounting, and Fig. 1 is provided
Be LED unit 12 under formal dress mode schematic diagram, the present embodiment eliminates the shell of conventional LED package, so that LED unit body
Product is smaller, reduces the distance between pixel, brings better display effect.When using formal dress mode, LED lamp 12 is driven
Between circuit board on dynamic chip 11 and flexible parent metal 3, connected using gold thread or aluminum steel mutually；When using upside-down mounting mode, driving
Chip 11 is connected directly to the circuit board on flexible parent metal 3, LED chip 12 and driving chip 11 and is connected by the cabling on circuit board
It connects.Flexible parent metal 3 uses PET, and the flexible high molecular materials such as PEN, lighter compared to PCB material, flexibility is higher, according to making
With occasion, flexible parent metal material can be transparent or nontransparent, and transparent material has better display effect.Flexible LED is shown
Screen can increase sticky stuff at the light-emitting surface back side, be attached to other surfaces and shown, can also increase optical lens in light-emitting surface
Gelatin stick (OCA) is shown, display effect is good, more flexible with scene to be attached to transparent surface.
In the optional embodiment of the present embodiment, flexible parent metal also includes etched circuit and for fixing the LED
The pad of wick and the driving chip.As shown in Figure 1, being connected with GND pad 21 in 11 bottom of driving chip；In LED lamp
12 bottoms, are connected with VCC pad 12, and driving chip 11 and LED lamp 12 are fixed on flexible parent metal 3 by pad.
In the optional embodiment of the present embodiment, as shown in Fig. 2, driving chip 11 includes 2 serial input terminals and 1
Serial output terminal, serial input terminal are connect with higher level and top-ranking's driving chip respectively, serial output terminal and junior and lower-level
Driving chip connection.
In the flexible LED display screen of above scheme design, 2 serial input terminals of each driving chip receive respectively
The output signal of grade driving chip and the transmission of top-ranking's driving chip, both junior and lower-level driving chip pass through side in parallel
Formula is connected on the output end of higher level's driving chip.When open circuit occurs for junior's chip, output signal can be skipped under damage
Grade driving chip, is transferred directly to lower-level driving chip, effectively slows down the problem of serial signal line open circuit.
In the optional embodiment of the present embodiment, as shown in Figure 1, LED lamp 12 includes red chip 123, green core
Piece 122 and blue chip 121.
In the optional embodiment of the present embodiment, 12 surrounding package of LED unit has the transparency material of protective effect.
In the LED display of above scheme design, in LED unit 12 surrounding package transparency material such as epoxy resin or silica gel
Deng it is possible to prevente effectively from damage, meets richer display scene demand.
In the optional embodiment of the present embodiment, LED unit also includes decoupling capacitor.
In the LED display of above scheme design, LED unit 12 and decoupling capacitor are encapsulated together, can be effectively reduced
Preferable Anti-Jamming is played in power supply ripple and electromagnetic radiation.
In the optional embodiment of the present embodiment, LED unit 12 is also comprising one for adjusting the driving chip electricity
The resistance of stream, resistance are connect with driving chip 11.
Claims (7)
1. a kind of flexible LED display screen, it is characterised in that: including flexible parent metal and multiple LED units,
The LED unit includes driving chip and LED lamp, and the driving chip, which connects with LED lamp and passes through COB technique, to be consolidated
It is scheduled on flexible parent metal.
2. flexible LED display screen according to claim 1, it is characterised in that: the flexible parent metal include etched circuit with
And the pad for fixing the driving chip and LED lamp.
3. flexible LED display screen according to claim 1, it is characterised in that: the driving chip includes 2 serial inputs
End and 1 serial output terminal, the serial input terminal are connect with higher level and top-ranking's driving chip respectively, the serial output terminal
It is connect with junior and lower-level driving chip.
4. flexible LED display screen according to claim 1, it is characterised in that: the LED lamp includes red chip, green
Color chip and blue chip.
5. flexible LED display screen according to claim 1, it is characterised in that: the LED unit surrounding package has had protection
The transparency material of effect.
6. flexible LED display screen according to claim 1, it is characterised in that: the LED unit includes decoupling capacitor.
7. flexible LED display screen according to claim 1, it is characterised in that: the LED unit includes described for adjusting
The resistance of driving chip electric current, the resistance are connect with the driving chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910292569.2A CN109830187A (en) | 2019-04-12 | 2019-04-12 | A kind of flexible LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910292569.2A CN109830187A (en) | 2019-04-12 | 2019-04-12 | A kind of flexible LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109830187A true CN109830187A (en) | 2019-05-31 |
Family
ID=66874970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910292569.2A Pending CN109830187A (en) | 2019-04-12 | 2019-04-12 | A kind of flexible LED display screen |
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| Country | Link |
|---|---|
| CN (1) | CN109830187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599305A (en) * | 2020-06-04 | 2020-08-28 | 南京达斯琪数字科技有限公司 | Flexible transparent screen LED drive circuit |
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| CN104867954A (en) * | 2015-05-14 | 2015-08-26 | 深圳雷曼光电科技股份有限公司 | LED light-emitting device and display screen |
| CN205016161U (en) * | 2015-08-06 | 2016-02-03 | 林谊 | LED pixel, light -emitting component , luminescent panel and display screen |
| CN105898934A (en) * | 2016-06-08 | 2016-08-24 | 深圳市聚智德科技有限公司 | LED lamp bead with integrated lamp core and lamp bead control system |
| CN206907767U (en) * | 2017-04-14 | 2018-01-19 | 长春希达电子技术有限公司 | A kind of feux rouges low-power consumption integrated LED display module |
| CN108461043A (en) * | 2018-02-01 | 2018-08-28 | 上海九山电子科技有限公司 | A kind of display panel and preparation method thereof |
| CN209859505U (en) * | 2019-04-12 | 2019-12-27 | 南京达斯琪数字科技有限公司 | Flexible LED display screen |
-
2019
- 2019-04-12 CN CN201910292569.2A patent/CN109830187A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104867954A (en) * | 2015-05-14 | 2015-08-26 | 深圳雷曼光电科技股份有限公司 | LED light-emitting device and display screen |
| CN205016161U (en) * | 2015-08-06 | 2016-02-03 | 林谊 | LED pixel, light -emitting component , luminescent panel and display screen |
| CN105898934A (en) * | 2016-06-08 | 2016-08-24 | 深圳市聚智德科技有限公司 | LED lamp bead with integrated lamp core and lamp bead control system |
| CN206907767U (en) * | 2017-04-14 | 2018-01-19 | 长春希达电子技术有限公司 | A kind of feux rouges low-power consumption integrated LED display module |
| CN108461043A (en) * | 2018-02-01 | 2018-08-28 | 上海九山电子科技有限公司 | A kind of display panel and preparation method thereof |
| CN209859505U (en) * | 2019-04-12 | 2019-12-27 | 南京达斯琪数字科技有限公司 | Flexible LED display screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111599305A (en) * | 2020-06-04 | 2020-08-28 | 南京达斯琪数字科技有限公司 | Flexible transparent screen LED drive circuit |
| CN111599305B (en) * | 2020-06-04 | 2023-06-06 | 南京达斯琪数字科技有限公司 | LED drive circuit of flexible transparent screen |
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