CN217933056U - Line screen without LED carrier plate and display device thereof - Google Patents

Line screen without LED carrier plate and display device thereof Download PDF

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Publication number
CN217933056U
CN217933056U CN202220684571.1U CN202220684571U CN217933056U CN 217933056 U CN217933056 U CN 217933056U CN 202220684571 U CN202220684571 U CN 202220684571U CN 217933056 U CN217933056 U CN 217933056U
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led
line
led luminous
line screen
data signal
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袁楚卓
陈都
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Shenzhen Meisi Micro Semiconductor Co ltd
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Shenzhen Meixi Micro Semiconductor Co ltd
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Abstract

The utility model relates to an exempt line screen of LED support plate and display device thereof, include: the LED lamp comprises a plurality of groups of flexible circuits parallel to each other and a plurality of LED luminous bodies arranged on each group of flexible circuits; for each group of flexible lines, wherein each LED luminary comprises coded information of the LED luminary; the line is a three-wire system and comprises the following three lines: the first connecting wire is used for electrically connecting the power supply anode/VCC end of each LED luminous body; the second connecting wire is used for electrically connecting the power supply cathode/GND end of each LED luminous body; the third connecting line is used for electrically connecting the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal. The utility model discloses can effectively reduce LED screen overall cost and improve the yield, can improve luminousness and electric current bearing capacity even.

Description

Line screen without LED carrier plate and display device thereof
Technical Field
The utility model relates to a show the field, particularly, relate to a line screen of avoiding LED support plate and display device thereof.
Background
At present, the display devices in the prior art are wide in variety, wherein the outdoor large-screen LED screen appearing in recent years gets attention of the industry and users, and even if the outdoor large-screen LED screen is hollowed out to a certain extent, a carrier board is still needed, as shown in fig. 1. In addition, screens with through holes or transparent carrier plates have also begun to appear in the art, which have a certain light transmission capability.
However, the carrier plate of the LED screen increases the cost and cannot be applied to various scenes requiring deformation and installation, and the solder joint on the carrier plate brings a problem of yield. There is a need in the art to develop new schemes that can effectively reduce the overall cost of LED panels and improve yield.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an exempt line screen of LED support plate, include:
the LED lamp comprises a plurality of groups of flexible circuits which are parallel to each other, and a plurality of LED luminous bodies arranged on each group of flexible circuits;
for each set of flexible circuits, wherein,
based on the burning technology, all the LED luminous bodies have different addresses or IDs;
the line is a three-wire system and comprises the following three lines:
the first connecting wire is used for electrically connecting the power supply anode/VCC end of each LED luminous body;
the second connecting wire is used for electrically connecting the power supply cathode/GND end of each LED luminous body;
the third connecting line is used for electrically connecting the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
In a preferred embodiment of the method of the invention,
the flexible circuit is externally wrapped with a material with certain light transmittance.
In a preferred embodiment of the method of the invention,
the multiple groups of flexible circuits are not in contact with each other from the head end to the tail end.
Preferably, the first and second liquid crystal materials are,
and the gaps among the multiple groups of flexible circuits are used for air to pass through.
Preferably, the first and second liquid crystal materials are,
for each group of flexible circuits, the flexible circuit has any one of the following characteristics:
(1) From head end to tail end, which can be cut into multiple parts;
(2) From the head end or the tail end, the flexible circuit can be spliced with a group of flexible circuits of the line screen with the same structure;
(3) The LED luminous bodies are connected in parallel.
Preferably, the first and second liquid crystal materials are,
the first connecting line, the second connecting line and the third connecting line are approximately parallel.
Preferably, the first and second liquid crystal materials are,
the multiple groups of flexible circuits are arranged into a plurality of parallel rows/columns.
Preferably, the first and second liquid crystal materials are,
the first connecting line, the second connecting line and the third connecting line are all set to be single-stranded wires or multi-stranded wires.
Preferably, the first and second liquid crystal materials are,
a plurality of first type pins, a plurality of second type pins and a plurality of third type pins are respectively arranged on the first connecting line, the second connecting line and the third connecting line;
each first type pin is used for being electrically connected with a power supply anode/VCC end of each LED luminous body;
each second type pin is used for being electrically connected with the power supply cathode/GND end of each LED luminous body;
each third type pin is used for being electrically connected with the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
Furthermore, the utility model also discloses a display device, wherein, display device includes above-mentioned arbitrary exempt the line screen of LED support plate.
The above technical scheme of the utility model can effectively reduce LED screen overall cost and improve the yield, can improve luminousness and electric current bearing capacity even.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a diagram of an LED screen in the prior art;
FIG. 2 is a schematic structural diagram of an LED panel in the prior art;
FIG. 3 is a schematic diagram of another LED panel of the prior art;
fig. 4 is a schematic structural diagram of a line screen without an LED carrier according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 4 in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", "row", "column", "parallel", "vertical", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, it is only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 4, in one embodiment, the present invention discloses a line screen without an LED carrier plate, including:
the LED lamp comprises a plurality of groups of flexible circuits parallel to each other and a plurality of LED luminous bodies arranged on each group of flexible circuits;
for each set of flexible circuits, the flexible circuit, among others,
based on the burning technology, all the LED luminous bodies have different addresses or IDs;
the line is a three-wire system and comprises the following three lines:
the first connecting wire is used for electrically connecting the power supply anode/VCC end of each LED luminous body;
the second connecting wire is used for electrically connecting the power supply cathode/GND end of each LED luminous body;
the third connecting line is used for electrically connecting the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
For the above embodiment, only three wires are used, and compared with the prior art, not only the carrier board but also the data signal output pin DOUT and its circuit are eliminated, and fig. 4 just illustrates a structural schematic diagram of a set of flexible circuits.
Comparing fig. 4 with fig. 2, fig. 2 illustrates a structure of an LED panel in the prior art:
although the controller of fig. 2 also uses only one DATA signal, i.e., DATA1, this point is seemingly the same as the only DIN one DATA signal shown in fig. 4 of the present invention, but:
in the order from right to left in fig. 2, it can be found that: in fig. 2, in order to implement the breakpoint resume function, DATA1 is directly connected to DIN1 pin of the first LED luminary and also connected to DIN2 pin of the second LED luminary, so as to ensure that the second LED luminary can still obtain the DATA signal from DATA1 through DIN2 pin even if the first LED luminary is not working normally and thus its DOUT cannot send out a valid signal. If the first LED emitter is operating properly, DOUT will forward a DATA1 signal processed by the first LED emitter and pass to DIN1 pin of the second LED emitter. And a third LED luminary, and the like.
It is apparent that for the prior art illustrated in fig. 2: the main pin for transmitting data signals is DIN1, and DIN2 plays a role of redundancy only when DIN1 cannot receive signals or works abnormally. Also, the signal of DIN1 is by default from DOUT of the preceding stage, and the signal of DIN2 is by default from DIN1 of the preceding stage. For a subsequent stage, the signal itself input in DIN1 of the subsequent stage is processed by a previous stage, so that the subsequent stage can directly acquire the data signal corresponding to the subsequent stage; or, the signal input in DIN2 by the subsequent stage is processed by the subsequent stage according to a fixed processing algorithm, and the subsequent stage can still obtain the data signal corresponding to the subsequent stage. In other words, even if the first LED luminary near the controller is not operating properly on the right side of fig. 2, the second LED luminary in the subsequent stage will also operate properly. And when the first LED luminous body and the second LED luminous body are in failure, the other rear stages have large-area failure. That is, for the breakpoint resume scheme shown in fig. 2, if 2 consecutive luminaires fail, then the corresponding subsequent stage will fail as a whole.
The utility model discloses compare the prior art shown in fig. 2, can avoid completely falling the support plate that bears the weight of the circuit, and further avoid falling DIN2 pin/terminal and the wiring that corresponds, because the utility model discloses an every LED luminous element itself has the coding information that self corresponds, and it only needs according to the coding information of this LED luminous element, follows acquire in the data signal to this LED luminous element correspond data signal can to ensure that each LED luminous element normally works. The prior art shown in fig. 2 does not rely at all on the coding of the LED luminary, but: or the data signal is processed by the previous stage and then transmitted to the next stage through the DOUT, or the next stage processes the signal according to DIN2 according to a fixed processing algorithm, acquires the data signal required by the stage, and then transmits the data signal backwards through the DOUT. The coded information in the utility model refers to the address code information or ID code information of every LED luminous element to distinguish each LED luminous element, this information can be through OTP's mode or other burning record technique (based on floating gate, electric capacity silk or anti-fuse technique etc.) rigid storage in the LED luminous element, and change the state of relevant storage element with this solidification, rigid storage. In other words, based on the burning technique, all LED luminaries have different addresses or IDs.
Just because the utility model discloses can avoid falling the support plate, avoid falling DIN2 this type of redundant pin and its wiring of connecting preceding stage DIN1 to and avoid removing the wiring that preceding stage DOUT is connected to back stage DIN1, and only adopt the three-wire system to connect all LED luminous bodies, so, the utility model discloses can show reduction wiring complexity and overall cost, also can show reduction fault rate and improve the yield. Typically, because the utility model discloses well third connecting wire is as the data signal line, directly is connected with every LED luminous element's DIN, and every LED luminous element has its self coding information and the correct data signal who acquires self luminous element and correspond from the data signal line, and every LED luminous element self all connects VCC and GND that corresponds, so, after arbitrary LED luminous element trouble, two continuous LED luminous elements or more break down even, the utility model discloses an avoid the line screen of LED support plate still can ensure the work of all the other luminous elements.
In addition, compare the utility model with the prior art shown in fig. 3:
the controller of fig. 3 adds a DATA signal, i.e., DATA2, compared to fig. 2, which is different from the only DIN one DATA signal shown in fig. 4 of the present invention. It is apparent that fig. 3 is more complex in wiring than the prior art of fig. 2, and is more susceptible to increased failure than the prior art shown in fig. 2.
To sum up, the utility model discloses can effectively reduce and reduce LED screen overall cost and improve the yield, owing to avoided the support plate, still further improve the luminousness moreover.
In another embodiment of the present invention, the substrate is,
and each LED luminous body acquires a corresponding data signal aiming at the LED luminous body from the data signal according to the coding information of the LED luminous body.
In another embodiment of the present invention, the substrate is,
the flexible circuit is externally wrapped with a material with certain light transmittance.
A certain light transmission, for example near-completely transparent, or translucent, depends on what visual effect is desired for a line screen that is free from LED carrier plates. Furthermore, need to explain because the utility model discloses avoid support plate and wiring quantity to reduce, so under the prerequisite that satisfies the transparency, the utility model discloses compare prior art, more can improve the line width that has had the wiring in order to improve the ability of bearing the electric current.
In another embodiment of the present invention, the substrate is,
the flexible circuit is externally coated with an insulating material.
In another embodiment of the present invention, the substrate is,
the flexible circuit is a transparent enameled wire.
In another embodiment of the present invention, the substrate is,
the multiple groups of flexible circuits are not in contact with each other from the head end to the tail end.
In another embodiment of the present invention, the substrate is,
and the gaps among the multiple groups of flexible circuits are used for air to pass through.
In another embodiment of the present invention, the substrate is,
for each group of flexible circuits, the flexible circuit has any one of the following characteristics:
(1) From head end to tail end, which can be cut into multiple parts;
(2) From the head end or the tail end, the flexible circuit can be spliced with a group of flexible circuits of the line screen with the same structure;
(3) The LED luminous bodies are connected in parallel.
It can be understood that, for the above (1) and (2), only the cut parts or the spliced parts are needed, and the corresponding first connecting line, second connecting line and third connecting line have normal functions.
In addition, for each line screen which is free of an LED carrier plate, a plurality of LED luminous bodies are preferably connected in parallel, and the LED luminous bodies are more convenient to cut and splice when connected in parallel. The parallel connection is preferred, which means that other connection modes are not completely excluded, and the basic voltage and current resistance requirements are met whether the connection modes are in series connection or in parallel connection or in series-parallel connection.
In another embodiment of the present invention, the substrate is,
the first connecting line, the second connecting line and the third connecting line are approximately parallel.
In another embodiment of the present invention, the substrate is,
the multiple groups of flexible circuits are arranged into a plurality of parallel rows/columns.
For the above 2 embodiments, it can be understood that the parallel connection lines and the multiple groups of flexible circuits are arranged in parallel rows/columns, which are beneficial to the visual effect.
In another embodiment of the present invention, the substrate is,
the first connecting line, the second connecting line and the third connecting line are all set to be single-stranded or multi-stranded wires.
In another embodiment of the present invention, the substrate is,
a plurality of first type pins, a plurality of second type pins and a plurality of third type pins are respectively arranged on the first connecting line, the second connecting line and the third connecting line;
each first type pin is used for being electrically connected with a power supply anode/VCC end of each LED luminous body;
each second type pin is used for being electrically connected with the power supply cathode/GND end of each LED luminous body;
each third type pin is used for being electrically connected with the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
In another embodiment, the LED luminary comprises a patch LED.
In another embodiment, the LED luminary comprises: at least 1 LED lamp pearl chip and any IC or other components and parts of connecting LED lamp pearl chip.
It should be noted that, in terms of LED lighting, whether AC or DC driven, the minimum requirement of the LED itself is two wire power. Due to the development of LED chip technology, even without a driving IC, an LED light emitting body can be formed using a certain number of LED chips having a small occupied area and directly driven by AC or DC.
In addition, it should be noted that, in the field of driving of LEDs, a technique of transmitting a data signal while supplying power by using a power supply line such as a line zero line/a line positive negative line has appeared. This corresponds to a carrier technology. This means that even without the third connection line, it is equally capable of transmitting data signals only via the first connection line and the second connection line. Whether the data signal is a specific code signal for different LED luminaries or different LED chips in a single LED luminary, whether the data signal is an address code signal for a specific LED luminary/LED chip or a color signal for the color of the lighting or display, the transmission of the corresponding data signal can be achieved by using such a carrier technology.
In another embodiment of the present invention, the substrate is,
in each group of flexible circuits, the LED luminous bodies are arranged at equal intervals.
In another embodiment of the present invention, the substrate is,
in the multiple groups of flexible circuits, the LED luminous bodies in each row/column are arranged in an equidistant mode in the row/column.
It can be understood that the above two embodiments are both beneficial to realizing the visual effect of equal spacing.
In another embodiment of the present invention, the substrate is,
the plurality of LED luminous bodies are connected with the ground in common.
In a further embodiment of the method according to the invention,
at the both ends of every group flexible circuit, still be provided with:
the data signal input pin DIN terminal is used for electrically connecting the data signal input pin DIN terminal of the LED luminous body.
In this way, the carrier board can be cascaded back and forth with the corresponding flexible circuit in the same configuration of the line screen, even though data signal input is involved.
In another embodiment of the present invention, the substrate is,
the coded information of each LED luminous body is different.
In another embodiment of the present invention, the substrate is,
the coded information for each LED luminary represents the ID of each LED luminary or the address of the LED luminary in the line screen free of the LED carrier plate.
In a further embodiment of the method according to the invention,
each LED luminary includes a memory containing coded information for that LED luminary.
In another embodiment of the present invention, the substrate is,
the coded information of the LED luminous bodies is burnt to each LED luminous body in advance.
In another embodiment of the present invention, the substrate is,
the line screen free of LED carrier plates can be mounted on any surface or in between any interlayers.
Furthermore, the utility model also discloses a display device, wherein, display device includes above-mentioned arbitrary exempt the line screen of LED support plate.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A line screen free of LED carrier plates, comprising:
the LED lamp comprises a plurality of groups of flexible circuits which are parallel to each other, and a plurality of LED luminous bodies arranged on each group of flexible circuits;
for each set of flexible circuits, the flexible circuit, among others,
based on the burning technology, all the LED luminous bodies have different addresses or IDs;
the line is a three-wire system and comprises the following three lines:
the first connecting wire is used for electrically connecting the power supply anode/VCC end of each LED luminous body;
the second connecting wire is used for electrically connecting the power supply cathode/GND end of each LED luminous body;
the third connecting line is used for electrically connecting the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
2. The LED carrier-exempt line screen of claim 1,
the flexible circuit is externally wrapped with a material with certain light transmittance.
3. The LED carrier-board-exempt line screen of claim 1, wherein,
the multiple groups of flexible circuits are not in contact with each other from the head end to the tail end.
4. The LED carrier-board-exempt line screen of claim 1, wherein,
and the gaps among the multiple groups of flexible circuits are used for air to pass through.
5. The LED carrier-board-exempt line screen of claim 1, wherein,
for each group of flexible circuits, the flexible circuit has any one of the following characteristics:
(1) From head end to tail end, which can be cut into multiple parts;
(2) From the head end or the tail end, the flexible circuit can be spliced with a group of flexible circuits of the line screen with the same structure;
(3) The LED luminous bodies are connected in parallel.
6. The LED carrier-board-exempt line screen of claim 1, wherein,
the first connecting line, the second connecting line and the third connecting line are approximately parallel.
7. The LED carrier-board-exempt line screen of claim 1, wherein,
the multiple groups of flexible circuits are arranged into a plurality of parallel rows/columns.
8. The LED carrier-board-exempt line screen of claim 1, wherein,
the first connecting line, the second connecting line and the third connecting line are all set to be single-stranded wires or multi-stranded wires.
9. The LED carrier-board-exempt line screen of claim 1, wherein,
a plurality of first type pins, a plurality of second type pins and a plurality of third type pins are respectively arranged on the first connecting line, the second connecting line and the third connecting line;
each first type pin is used for being electrically connected with a power supply anode/VCC end of each LED luminous body;
each second type pin is used for being electrically connected with the power supply cathode/GND end of each LED luminous body;
each third type pin is used for being electrically connected with the data signal input pin DIN terminal of each LED luminous body so as to provide a data signal.
10. A display device comprising the LED carrier-relieved line screen as claimed in any one of claims 1 to 9.
CN202220684571.1U 2022-03-27 2022-03-27 Line screen without LED carrier plate and display device thereof Active CN217933056U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023185462A1 (en) * 2022-03-27 2023-10-05 深圳市美矽微半导体有限公司 Wire screen without led carrier board and display device comprising wire screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023185462A1 (en) * 2022-03-27 2023-10-05 深圳市美矽微半导体有限公司 Wire screen without led carrier board and display device comprising wire screen

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Address after: 518000 East, floor 4, building 4, Shenzhen Software Park, No. 2, Gaoxin Zhonger Road, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong

Patentee after: Shenzhen Meisi Micro Semiconductor Co.,Ltd.

Address before: 518000 East, floor 4, building 4, Shenzhen Software Park, No. 2, Gaoxin Zhonger Road, Maling community, Yuehai street, Nanshan District, Shenzhen, Guangdong

Patentee before: SHENZHEN MEIXI MICRO SEMICONDUCTOR CO.,LTD.