LED display light bar

Abstract

The LED display light bar comprises a U-shaped shell, a flexible circuit board, a first electric lead and a second electric lead are arranged in the U-shaped shell, the first electric lead and the second electric lead are used for supplying power, and the left side and the right side of the flexible circuit board are bent downwards to form an inverted-U-shaped structure; lED luminous bodies are regularly arranged on the outer surface of the upper side of the flexible circuit board, and the LED luminous bodies are electrically connected with the flexible circuit board; the first conductive wire is arranged on the inner surface of the left side of the flexible circuit board, the second conductive wire is arranged on the inner surface of the right side of the flexible circuit board, and the first conductive wire and the second conductive wire are electrically connected with the flexible circuit board. The problem that the LED brightness is weakened due to far-end voltage attenuation can be solved.

Description

Technical Field

[0001] The present application relates to the field of LED display, and in particular to an LED display light bar. Background Art

[0002] LED light strips are widely used in decorative display scenarios such as shopping malls, hotels, and restaurants because of their strong design flexibility. Multiple light strips can be flexibly combined to form an LED display screen, and can be expanded according to installation requirements of different sizes.

[0003] In the prior art, in order to improve the display effect and achieve a higher pixel density, the spacing between LED light strips is usually reduced. To this end, the size of the LED light strip and its internal circuit board also needs to be reduced accordingly. However, this reduction will limit the wiring space of the power supply line, thereby limiting the overcurrent capacity of the line, resulting in a weakening of the luminous intensity at the far end of the display screen. Moreover, in order to achieve a larger LED display screen, the length of the LED light strip also needs to be increased accordingly. Too long a line will also cause voltage attenuation, resulting in uneven color and brightness. Summary of the invention

[0004] In view of this, the present invention provides an LED display light bar, comprising: A U-shaped housing, wherein the U-shaped housing is provided with: A flexible circuit board, and a first conductive line and a second conductive line for power supply, wherein the left and right sides of the flexible circuit board are bent downward to form an inverted U-shaped structure; The upper outer surface of the flexible circuit board is regularly provided with LED illuminants, and the LED illuminants are electrically connected to the flexible circuit board; The first conductive line is arranged on the left inner surface of the flexible circuit board, and the second conductive line is arranged on the right inner surface of the flexible circuit board. Both the first conductive line and the second conductive line are electrically connected to the flexible circuit board.

[0005] In a possible implementation, a glue sealing filling layer is further provided in the U-shaped shell, and the glue sealing filling layer seals the flexible circuit board, the first conductive wire, and the second conductive wire in the U-shaped shell.

[0006] In a possible implementation, an insulating portion is further provided in the flexible circuit board and the U-shaped housing, and the insulating portion is used to electrically insulate the first conductive wire from the second conductive wire, and the first conductive wire, the second conductive wire and the housing.

[0007] In a possible implementation manner, the LED illuminant exposes the glue sealing filling layer.

[0008] In a possible implementation, a signal line is further provided on the flexible circuit board, and the signal line is electrically connected to the LED light-emitting body.

[0009] In a possible implementation, the U-shaped housing is made of stainless steel, aluminum, plastic or glass.

[0010] In the present application, the first conductive wire and the second conductive wire for power supply are arranged on the left inner surface and the right inner surface of the flexible circuit board, rather than arranging the power supply line inside the circuit board, so that the cross-sectional size of the conductive wire is no longer limited by the size of the circuit board. In this way, the cross-sectional size of the conductive wire can be adjusted as needed to meet the demand for excessive current, thereby avoiding the voltage attenuation phenomenon of the remote LED light source and ensuring the color consistency of the LED display light bar. Moreover, the present application bends the flexible circuit board into an inverted U-shaped structure, and arranges the power supply line in the inverted U-shaped structure, which can save the space occupied by the light bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] in: Figure 1 is a schematic diagram of an LED display light bar provided in an embodiment of the present application; Figure 2 is a schematic diagram of a U-shaped housing provided in one embodiment of the present application; Figure 3 Schematic diagram of an LED display light bar provided in one embodiment of the present application. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0014] As mentioned in the background technology, in the prior art, in order to improve the display effect and achieve a higher pixel density, the spacing between LED light strips is usually reduced. When the spacing between the LED light strips is reduced to a certain extent, in order to further reduce the distance between the LED lamp beads, the cross-sectional dimensions of the LED light strip and its internal circuit board 1 also need to be reduced accordingly. However, this reduction will limit the wiring space of the power supply line, thereby limiting the overcurrent capacity of the line, resulting in a reduction in the luminous intensity of the remote LED, and then causing uneven color and brightness. Moreover, in order to achieve a longer LED display screen, the length of the LED light strip also needs to be lengthened, and an excessively long line will also cause voltage attenuation.

[0015] Based on this, the present application provides an LED display light bar that can prevent the voltage at the far end of the light bar from attenuating.

[0016] like Figure 1 As shown, an LED display light strip includes a U-shaped shell 6, characterized in that: a flexible circuit board 1, and a first conductive line 2 and a second conductive line 3 for power supply are arranged in the U-shaped shell 6, the left and right sides of the flexible circuit board 1 are bent downward to form an inverted U-shaped structure, and are arranged in the U-shaped shell, and the opening direction of the inverted U-shaped structure formed by bending the flexible circuit board 1 is opposite to the opening direction of the U-shaped shell.

[0017] LED light-emitting bodies 4 are regularly arranged on the upper outer surface of the flexible circuit board 1, and the LED light-emitting bodies 4 are electrically connected to the flexible circuit board 1. The light-emitting surface of the LED light-emitting bodies 4 is consistent with the opening surface of the U-shaped shell; the first conductive wire 2 is arranged on the left inner surface of the flexible circuit board 1, and the second conductive wire 3 is arranged on the right inner surface of the flexible circuit board 1, and the first conductive wire 2 and the second conductive wire 3 are both electrically connected to the flexible circuit board 1.

[0018] In order to reduce the far-end voltage attenuation and increase the overcurrent capability, the first conductive line 2 and the second conductive line 3 are preferably conductors capable of carrying large currents, such as copper bars of a certain thickness, or multiple ordinary lines are connected in parallel into one line capable of carrying large currents.

[0019] Of course, other types of conductive wires can also be selected according to actual conditions, and the materials of the first conductive wire 2 and the second conductive wire 3 can also be selected from aluminum, gold, silver, iron and other conductive materials. In the present application, the first conductive wire 2 can be a power line, and the second conductive wire 3 can be a ground line, or the first conductive wire 2 can be a ground line, and the second conductive wire 3 can be a power line.

[0020] The material of the U-shaped housing 6 can be stainless steel, or aluminum, plastic, glass or other materials can be used as the housing of the LED light strip.

[0021] It should be pointed out that if Figure 1As shown, the circuit board in the present application may also include a signal line 5, which is arranged on the upper outer surface of the circuit board and is electrically connected to the LED light-emitting body 4 arranged on the circuit board to realize signal transmission. Of course, the LED light bar of the present application may not include the signal line 5. In this case, the signal is transmitted in the form of a carrier through the first conductive line 2 and the second conductive line 3.

[0022] The flexible circuit board 1 in the present application can be a single-sided board, a common double-sided board, a single-sided board generated by a substrate, or a double-sided board generated by a substrate, and the present application does not limit this.

[0023] In the embodiment of the present application, the first conductive wire 2 and the second conductive wire 3 for power supply are arranged on the upper outer surface of the circuit board instead of inside the circuit board, so that the cross-sectional size of the conductive wire is no longer limited by the size of the circuit board. In this way, the cross-sectional size of the conductive wire can be adjusted as needed to meet the demand for a larger current, thereby avoiding the voltage attenuation phenomenon of the remote LED light source 4 and ensuring the color consistency of the LED display light bar.

[0024] In some embodiments, Figure 3 As shown, in order to meet the outdoor use requirements of the light bar and achieve dustproof and waterproof functions, a glue sealing filling layer 7 is further provided in the U-shaped shell, and the glue sealing filling layer 7 fills the interior of the light bar and seals the flexible circuit board 1, the first conductive wire 2 and the second conductive wire 3 in the U-shaped shell 6. It can be understood that in order not to affect the light-emitting effect of the LED light-emitting body 4, the light-emitting surface of the LED light-emitting body 4 can expose the glue sealing filling layer 7.

[0025] In some embodiments, an insulating portion 8 is further provided in the flexible circuit board 1 and the U-shaped housing 6 , and the insulating portion 8 is used to electrically insulate the first conductive wire 2 from the second conductive wire 3 , and the first conductive wire 2 , the second conductive wire 3 from the housing.

[0026] like Figure 3 As shown, the insulating part 8 is disposed between the flexible circuit board 1 and the U-shaped housing 6, so as to electrically insulate the first conductive wire 2, the second conductive wire 3, and the first conductive wire 2, the second conductive wire 3 and the housing.

[0027] It should be understood that the references to "one embodiment" or "some embodiments" throughout the specification mean that specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0028] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An LED display light bar, comprising a U-shaped housing, characterized in that: The U-shaped housing is provided with: A flexible circuit board, and a first conductive line and a second conductive line for power supply, wherein the left and right sides of the flexible circuit board are bent downward to form an inverted U-shaped structure; The upper outer surface of the flexible circuit board is regularly provided with LED illuminants, and the LED illuminants are electrically connected to the flexible circuit board; The first conductive line is arranged on the left inner surface of the flexible circuit board, and the second conductive line is arranged on the right inner surface of the flexible circuit board.

2. The LED display light strip according to claim 1, characterized in that: A glue sealing filling layer is also arranged in the U-shaped shell, and the glue sealing filling layer seals the flexible circuit board, the first conductive wire and the second conductive wire in the U-shaped shell.

3. The LED display light strip according to claim 2, characterized in that: The light-emitting surface of the LED light-emitting body exposes the glue sealing filling layer.

4. The LED display light strip according to claim 1, characterized in that: The flexible circuit board and the U-shaped shell are further provided with an insulating part, and the insulating part is used to electrically insulate the first conductive wire from the second conductive wire, and the first conductive wire, the second conductive wire and the shell.

5. The LED display light strip according to claim 1, characterized in that: A signal line is also arranged on the upper outer surface of the flexible circuit board, and the signal line is electrically connected to the LED light-emitting body.

6. The LED display light strip according to claim 1, characterized in that: The U-shaped shell is made of stainless steel, aluminum, plastic or glass.

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