CN216817744U

CN216817744U - LED lamp panel and LED display screen using same

Info

Publication number: CN216817744U
Application number: CN202220218853.2U
Authority: CN
Inventors: 汤煌怀; 张强; 罗通; 林清宝
Original assignee: Images Smart Glass Technologies Fu Jian Co ltd
Current assignee: Images Smart Glass Technologies Fu Jian Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-06-24
Anticipated expiration: 2032-01-26

Abstract

The utility model relates to an LED lamp panel and an LED display screen using the same. The lamp strips are arranged on the lamp panel body side by side or in an array manner, a plurality of LED lamp beads are arranged on the front side of the lamp strips, and the LED lamp beads are arranged at intervals along the length direction of the lamp strips; the lamp strip is provided with a first circuit connected with the LED lamp beads. Each driving board corresponds to at least one light bar, the driving boards are fixed to the back of the light bar, and the light bar shields the driving boards; the driving board is provided with at least one control chip and a second circuit connected with the control chip, and the first circuit is connected with the second circuit. According to the utility model, under the condition that the quantity of the LED lamp beads is the same and the arrangement intervals of the LED lamp beads are the same, the lamp strips with smaller widths can be used, so that the intervals between the adjacent lamp strips are enlarged, and the permeability of the product is greatly improved.

Description

LED lamp panel and LED display screen using same

Technical Field

The utility model relates to the technical field of LED display screens, in particular to an LED lamp panel and an LED display screen using the same.

Background

Traditional LED lamp plate hardware mode of arranging often can lead to the width broad of lamp plate and the interval between the adjacent lamp strip narrower because the space restriction that receives control chip to influence whole display screen's penetrating rate.

SUMMERY OF THE UTILITY MODEL

Aiming at the problem that the traditional LED lamp panel is limited by an IC chip to influence the permeability of the whole display screen, the utility model aims to provide the LED lamp panel and the LED display screen using the same, wherein the LED lamp panel has higher permeability under the condition of the same quantity of light sources.

In order to achieve the purpose, the utility model discloses an LED lamp panel which comprises a lamp panel body, wherein the lamp panel body comprises a plurality of lamp strips and a plurality of driving boards, and the lamp strips and the driving boards are PCB boards.

The LED lamp beads are arranged at intervals along the length direction of the lamp strip; and the lamp strip is provided with a first circuit for connecting each LED lamp bead.

Each driving board corresponds to at least one light bar, the driving boards are fixed on the back faces of the light bars, and the light bars shield the driving boards; the LED lamp comprises a driving board, and is characterized in that at least one control chip and a second circuit connected with the control chip are arranged on the driving board, the first circuit is connected with the second circuit, and the control chip is connected with and controls each LED lamp bead through the first circuit and the second circuit.

Preferably, the first line and the second line are connected by at least one connection terminal, the connection terminal comprises a male terminal and a female terminal, and the male terminal and the female terminal are plugged; the male terminal is arranged on the back face of the light bar, and the female terminal is arranged on the driving board.

Alternatively, the first and second wires are soldered.

Alternatively, the first and second lines abut.

Preferably, the driving board is connected with the light bar in an adhesive joint or a snap joint or through a fastener.

Preferably, the fastener is a clip or a band or a clip or a binding rope.

Preferably, the length of the driving board is equal to the length of the light bar.

Preferably, the driving board is perpendicular to the light bar.

Preferably, the difference between the width of the lamp strip and the diameter or width of the LED lamp bead is not more than 2 mm.

Preferably, the lamp plate body is partially hollowed to form the lamp strip.

In addition, the utility model also discloses an LED display screen which comprises a controller, a frame and at least one LED lamp panel as any one of the LED lamp panels, wherein the LED lamp panel is fixed on the frame, and the controller is connected with the lamp strip and the driving board.

Preferably, the controller further comprises a mounting box for placing and protecting the controller.

The utility model has the following beneficial effects:

according to the LED lamp, the control chip is arranged on the drive board independent of the lamp strip, the drive board is fixed on the back of the lamp strip and is shielded and hidden, and the control chip is connected with the LED lamp beads through the first circuit and the second circuit and controls the LED lamp beads to emit light. According to the installation mode of the control chip, the light bars with smaller width can be used under the condition that the LED lamp beads are arranged in the same dot matrix, so that the distance between the adjacent light bars is increased, and the permeability of the product is greatly improved; or, under the condition of the same display area, the LED lamp beads can be arranged more densely, the display definition of the product is improved, and the resolution ratio is higher. In addition, benefit from the mounting means of drive plate, can regard the drive plate as the backup pad of putting more energy into of lamp strip for the structural strength of lamp plate main part is higher.

Drawings

Fig. 1 is a schematic diagram of a first embodiment.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged view of a portion B in fig. 1.

FIG. 4 is a diagram illustrating a second embodiment.

FIG. 5 is a schematic view of an LED display screen according to the present invention.

Description of the main part symbols:

the LED lamp comprises a lamp panel body 10, a lamp strip 11, a driving board 12, LED lamp beads 13, a control chip 14, a male terminal 15 and a female terminal 16;

a frame 20;

the case 30 is mounted.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

The first embodiment is as follows:

as shown in fig. 1-3, the present embodiment discloses an LED lamp panel, which includes a lamp panel body 10, where the lamp panel body 10 includes a plurality of lamp strips 11 and a plurality of driver boards 12, and the lamp strips 11 and the driver boards 12 are PCB boards.

Light bar 11 is formed by the local fretwork of lamp plate body 10, and light bar 11 sets up side by side or is the array and arranges on lamp plate body 10, preferably equidistant setting side by side, under the very big condition of lamp plate body 10 span, can consider to use the mode that sets up side by side. The front surface of the light bar 11 is provided with a plurality of LED lamp beads 13, and the LED lamp beads 13 are arranged at equal intervals along the length direction of the light bar 11. In addition, still be equipped with the first circuit (the copper foil circuit on the PCB) of connecting each LED lamp pearl 13 on lamp strip 11, be equipped with at least one public terminal 15 on first circuit, these public terminals 15 are fixed at the back of lamp strip 11, and each pin contact pin in public terminal 15 and LED lamp pearl 13 one-to-one. The number of the male terminals 15 is determined according to the number of the LED lamp beads 13 and the number of the pins carried by the male terminals 15. Note that, in the drawings, the male terminal is omitted and is only schematically illustrated.

Each driving board 12 corresponds to a light bar 11, and driving board 12 vertical fixation is at the back of light bar 11, and driving board 12 and the perpendicular setting of light bar 11 can do benefit to the installation counterpoint of fixed and connector. At least one control chip 14 is arranged on the driving board 12, and the number of the control chips 14 is determined according to the number of the LED lamp beads 13 on the corresponding lamp strip 11 and the control pins of the control chip 14. Fixed back drive plate 12 is sheltered from by lamp strip 11, and control chip 14 is horizontal also can shelter from by lamp strip 11 for lamp strip 11, and control chip 14's size just can not be to the influence that causes of lamp strip 11's width like this, and the width of lamp strip 11 can set up littleer, only need than LED lamp pearl 13 slightly bigger a bit can, the difference of the diameter or the width of requirement lamp strip 11 and LED lamp pearl 13 is not more than 2 mm.

The driving board 12 is further provided with a second circuit connected with each pin of the control chip 14, the second circuit is provided with a female terminal 16 matched with the male terminal 15, the male terminal 15 and the female terminal 16 are connected in an inserting mode to achieve connection of the first circuit and the second circuit, and therefore the control chip 14 can be connected with each LED lamp bead 13 through the first circuit and the second circuit and independently control each LED lamp bead 13 to emit light. Usually, the LED lamp beads 13 on the lamp strip 11 are all positive in the common power supply, and do not need to be connected to the control chip 14, the first line and the second line are connected to form a negative connection of the LED lamp beads 13, and the control chip 14 constitutes a switch for controlling the on-off of the negative pole of the power supply and the negative pole of the LED lamp beads 13. The male terminal 15 and the female terminal 16 are mating products, i.e., connection terminals, and are widely used in electronic products. Of course, the first and second lines may also be connected by soldering or directly abutting or otherwise, but connection via the connection terminals is relatively more convenient to handle. It should be noted that the circuit connection manner between the control chip 14 and the LED lamp bead 13 is a mature technology at present, and this embodiment only illustrates one connection manner, and other conventional connection manners should also be included in the protection scope of the present invention.

Through the mode of connecting terminal or soldering tin connection, can also make drive plate 12 and lamp strip 11 realize fixed connection without taking other measures. Of course, other fixing manners may be further provided to ensure that the driving board 12 cannot easily fall off, and the connection reliability of the first circuit and the second circuit is ensured, for example, the driving board 12 and the light bar 11 are fixed by gluing, or fixed by being provided with a buckle, or connected by a fastener, and the like, and the fastener may be a hoop or a ribbon or a clip or a binding rope.

Preferably, the length of the driving board 12 is equal to the length of the light bar 11, so that the driving board 12 can support the light bar 11, and the structural strength of the whole light panel is further improved. Of course, the length of the driving board 12 may be shorter than that of the light bar 11, and it is only necessary to ensure that the first line and the second line can be connected.

Example two:

as shown in fig. 4, the present embodiment is different from the first embodiment in that: one driving board 12 corresponds to a plurality of light bars 11, the driving board 12 is fixed on one of the light bars 11, a first circuit on the light bar 11 can be connected with a second circuit on the driving board 12 in a manner as in the first embodiment, while a first circuit on the other light bar 11 can be connected with the second circuit on the driving board 12 in a manner of leading out a connecting line, and the connecting line can be laid along the non-hollow part of the lamp panel main body. The control chip 14 on the driving board 12 is also adjusted according to the number of the light bars 11 controlled by the control chip.

In addition, the utility model also discloses an LED display screen, as shown in fig. 5, which includes a controller, a frame 20 and at least one LED lamp panel as in the first embodiment or the second embodiment, the LED lamp panel is fixed on the frame 20, and the controller is connected with the lamp strip 11 and the driving board 12. The controller is a master control end which is linked with each control chip 14, and can be connected with a power supply and play a role in power distribution. In addition, a mounting box 30 may be provided to place the controller in order to protect the controller.

The above description is only for the preferred embodiment of the present invention, but the 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 are included in the scope of the present invention.

Claims

1. The utility model provides a LED lamp plate which characterized in that: the LED lamp panel comprises a lamp panel body, wherein the lamp panel body comprises a plurality of lamp strips and a plurality of driving boards, and the lamp strips and the driving boards are PCB boards;

the LED lamp beads are arranged at intervals along the length direction of the lamp strip; the lamp strip is provided with a first circuit for connecting each LED lamp bead;

2. The LED lamp panel of claim 1, wherein: the first line and the second line are connected through at least one connecting terminal, the connecting terminal comprises a male terminal and a female terminal, and the male terminal and the female terminal are spliced; the male terminal is arranged on the back of the light bar, and the female terminal is arranged on the driving board;

or the first circuit and the second circuit are connected by soldering tin;

alternatively, the first and second lines abut.

3. The LED lamp panel of claim 1, wherein: the driving board is connected with the light bar in an adhesive joint or a buckling manner or connected through a fastener.

4. The LED lamp panel of claim 3, wherein: the fastener is a hoop or a band or a clamp or a binding rope.

5. The LED lamp panel of claim 1, wherein: the length of the driving board is equal to that of the light bar.

6. The LED lamp panel of claim 1, wherein: the driving board is perpendicular to the light bars.

7. The LED lamp panel of claim 1, wherein: the difference between the width of the lamp strip and the diameter or width of the LED lamp bead is not more than 2 mm.

8. The LED lamp panel of claim 1, wherein: the lamp plate body is partially hollowed to form a lamp bar.

9. An LED display screen, its characterized in that: the LED lamp panel comprises a controller, a frame and at least one LED lamp panel according to any one of claims 1 to 8, wherein the LED lamp panel is fixed on the frame, and the controller is connected with a lamp bar and a driving board.

10. The LED display screen of claim 9, wherein: the controller also comprises a mounting box for placing and protecting the controller.