CN211260520U - LED lamp panel and display device - Google Patents

Abstract

The utility model discloses a LED lamp plate and display device, wherein, the LED lamp plate includes PCB base plate and LED lamp body, and the PCB base plate is the single-sided board, and the PCB base plate has the bottom surface and the top surface relative with the bottom surface, LED lamp body paster to bottom surface, sets up the logical groove that runs through top surface and bottom surface on the PCB base plate, leads to the groove and apart from setting distance with the LED lamp body on the bottom surface. Set up logical groove through running through on single panel structure's PCB base plate, not only can reduce manufacturing cost, the light that can also make the LED lamp body send sees through the top surface of leading to groove to PCB base plate, satisfies the normal luminous demand of LED lamp plate, and sets up logical groove back, can make the LED lamp body carry out red gluey technology paster on PCB base plate, and machine automatic operation need not artifical installation, has promoted the packaging efficiency and the yield of LED lamp body.

Description

LED lamp panel and display device

Technical Field

The utility model relates to a display device technical field especially relates to a LED lamp plate and display device.

Background

A single-sided printed circuit board, is a basic PCB with all components concentrated on one side and wires concentrated on the other side. The single panel is low in price, and can effectively reduce the manufacturing cost, so that the single panel is often used in the field requiring strict cost control. When the LED lamp plate adopted the single-sided board, its LED lamp pearl was fixed on the PCB base plate with plug-in components assembly's mode basically, and plug-in components assembly indicates: the lamp pins of the LED lamp are inserted into the mounting holes of the PCB substrate, and the assembly mode has the following defects: 1. compared with a patch assembly mode, the material cost used by the plug-in assembly mode is increased; 2. the assembly of the plug-in units needs manual operation, which can increase the production cost, and the manual operation is easy to generate error plug-in, so that the reject ratio of the produced products is high.

And the patch assembly method is not suitable for single panel mounting of the LED lamp. As shown in fig. 1, when the LED lamp 1 ' is mounted on a chip, the LED lamp 1 ' must be mounted on the bottom 21 ' of the PCB substrate 2 ' due to the structural limitation of a single panel, and the PCB substrate 2 ' is opaque, so that light emitted from the LED lamp 1 ' cannot penetrate through the bottom 21 ' of the PCB substrate 2 ' to the top 22 ' of the PCB substrate 2 ', and a user cannot see the light emitted from the LED lamp 1 ' when viewing from the side where the top 22 ' of the PCB substrate 2 ' is located.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the LED lamp panel can be installed on a PCB substrate of a single-panel structure by adopting a surface mounting process, and is good in light transmission effect, low in production cost and high in product yield.

The embodiment of the utility model provides a another aim at: a display device is provided which is simple in structure and low in cost.

To achieve the purpose, the embodiment of the present invention adopts the following technical solutions:

in a first aspect, an LED lamp panel is provided, which includes a PCB substrate and an LED lamp body, the PCB substrate is a single-sided board, the PCB substrate has a bottom surface and a top surface opposite to the bottom surface, the LED lamp body is attached to the bottom surface, a through groove penetrating through the top surface and the bottom surface is formed on the PCB substrate, and the through groove and the LED lamp body are spaced apart from each other on the bottom surface by a set distance.

The utility model has the advantages that: set up logical groove through running through on single panel structure's PCB base plate, not only can reduce manufacturing cost, the light that can also make the LED lamp body send sees through the top surface of leading to groove to PCB base plate, satisfies the normal luminous demand of LED lamp plate, and sets up logical groove back, can make the LED lamp body carry out red gluey technology paster on PCB base plate, and machine automatic operation need not artifical installation, has promoted the packaging efficiency and the yield of LED lamp body.

As an optimal scheme of the LED lamp panel, the two opposite sides of the LED lamp body are provided with the through grooves. Through set up logical groove in the both sides that the LED lamp body is relative, the light that can make the LED lamp body send can pass the top surface of leading to groove to PCB base plate more evenly for the luminous more even of LED lamp plate.

As an optimal scheme of the LED lamp panel, the LED lamp body is in a long strip shape, the through groove is in a long strip shape, and the length of the through groove extends along the length direction of the LED lamp body. When the LED lamp body is long-strip-shaped, the through groove is also arranged to be long-strip-shaped, the length direction of the through groove and the length direction of the through groove are the same, light rays emitted by the LED lamp body can be guided to the top surface of the PCB substrate as much as possible, and the light emitting brightness of the LED lamp panel is improved.

As an optimal scheme of the LED lamp panel, the through grooves are formed in the two sides of the width direction of the LED lamp body. Through all setting up logical groove in LED lamp body width direction both sides, both can promote the luminous luminance of LED lamp plate, can also make the light that the LED lamp body sent pass the top surface of leading to groove to PCB base plate more evenly for the luminous more even of LED lamp plate.

As an optimal scheme of the LED lamp panel, the two through grooves are arranged along the length direction of the LED lamp body in a staggered mode. Two logical grooves that stagger and set up can guarantee LED lamp body length direction and derive light to the top surface of PCB base plate as much as possible, can also avoid seting up the logical groove structure isometric with the LED lamp body or length is greater than the LED lamp body, and then promote the intensity of the position that the LED lamp body was installed to the PCB base plate.

As a preferred scheme of LED lamp plate, two lead to groove in the length direction's of LED lamp body central point puts the partial coincidence. Through two logical groove at the length direction's of LED lamp body central part coincidence, can guarantee that LED lamp body length direction's all positions can all derive light to PCB base plate's top surface, promote the luminous luminance of LED lamp plate.

As a preferable scheme of the LED lamp panel, two ends of the through groove in the length direction are respectively a first end and a second end, the first end is located at the outer side of the LED lamp body in the length direction, the second end is located between the two ends of the LED lamp body in the length direction, a distance between the first end and an end portion, adjacent to the first end, of the LED lamp body is L1, and L1 is greater than or equal to 0 mm and less than 0.5 mm.

As an optimal scheme of the LED lamp panel, the through groove is any one of a waist-shaped groove, a rectangular groove and an elliptical groove.

As a preferable scheme of the LED lamp panel, the set distance is L2, and L2 is more than or equal to 0.5mm and less than or equal to 0.8 mm.

In a second aspect, a display device is provided, which includes the LED lamp panel. The utility model discloses a display device simple structure, it is with low costs.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a schematic structural view of an existing single-panel mounting LED lamp in a patch manner.

Fig. 2 is the utility model discloses a spatial structure schematic diagram of LED lamp plate.

Fig. 3 is a schematic bottom view of fig. 2.

In fig. 1:

1', LED lamp; 2', a PCB substrate; 21', bottom surface; 22', top surface.

In fig. 2 and 3:

1. a PCB substrate; 11. a bottom surface; 12. a top surface; 13. a through groove; 131. a first end; 132. a second end; 2. and the LED lamp body.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 2 and 3, the embodiment of the utility model provides a LED lamp plate can be used to display device, and as display device's backlight source, a side that display device is used for information such as display pattern is the front, and the top surface of LED lamp plate is the same with display device's front orientation.

As shown in fig. 2 and 3, the utility model discloses the LED lamp plate includes PCB base plate 1 and LED lamp body 2, and PCB base plate 1 is the single-sided board, and PCB base plate 1 has bottom surface 11 and top surface 12 relative with bottom surface 11, and PCB base plate 1's top surface 12 is the top surface of LED lamp plate promptly, and LED lamp body 2 paster to bottom surface 11, set up the logical groove 13 that runs through top surface 12 and bottom surface 11 on PCB base plate 1, lead to groove 13 and LED lamp body 2 apart from the set distance on bottom surface 11. Set up logical groove 13 through running through on single panel structure's PCB base plate 1, not only can reduce manufacturing cost, the light that can also make LED lamp body 2 send sees through top surface 12 of leading to groove 13 to PCB base plate 1, satisfy the normal luminous demand of LED lamp plate, and set up logical groove 13 after, can make LED lamp body 2 carry out red gluey technology paster on PCB base plate 1, machine automatic operation need not artifical installation, the packaging efficiency and the yield of LED lamp body 2 have been promoted.

The red glue process belongs to a wave soldering process, namely, the red glue is used for fixing an element during chip mounting, the element flows into an insert process, and wave soldering is used after the insert is completed. After the red glue process is pasted, only one welding process is needed, namely a wave soldering welding process.

The through groove 13 is formed before the LED lamp body 2 is pasted on the PCB substrate 1, and can be manufactured and molded by a manufacturer for manufacturing the PCB substrate 1, so that the through groove 13 is prevented from being formed after the LED lamp body 2 is pasted, and the risk that the LED lamp body 2 is damaged is reduced. Of course, the through groove 13 is not limited to be opened before the LED lamp body 2 is mounted on the PCB substrate 1, but may be opened after the LED lamp body 2 is mounted on the PCB substrate 1, and at this time, the LED lamp body 2 needs to be protected.

In one embodiment, the LED lamp body 2 is provided with through slots 13 on two opposite sides. Through set up logical groove 13 in 2 relative both sides of LED lamp body, can make the light that LED lamp body 2 sent pass through groove 13 to PCB base plate 1's top surface 12 more evenly for the luminous more even of LED lamp plate.

In this embodiment, LED lamp body 2 is rectangular shape, leads to groove 13 and is rectangular shape groove, leads to the length of groove 13 and extends along the length direction of LED lamp body 2. When LED lamp body 2 is rectangular shape, will lead to groove 13 and also set up to rectangular shape, and the two length direction is the same, can lead the light that LED lamp body 2 sent to PCB base plate 1's top surface 12 as much as possible, promotes the luminous luminance of LED lamp plate.

Further, the LED lamp body 2 is provided with through grooves 13 on both sides in the width direction. Through all setting up logical groove 13 in 2 width direction both sides of LED lamp body, both can promote the luminous luminance of LED lamp plate, can also make the light that LED lamp body 2 sent pass through groove 13 to PCB base plate 1's top surface 12 more evenly for the luminous more even of LED lamp plate. Of course, the through grooves 13 are not limited to being formed on both sides of the LED lamp body 2 in the width direction, and the through grooves 13 may be formed on both sides of the LED lamp body 2 in the longitudinal direction, that is, on the short sides of the LED lamp body 2.

Preferably, the two through grooves 13 are staggered along the length direction of the LED lamp body 2. Two through grooves 13 that stagger and set up can guarantee that 2 length directions of LED lamp body derive light to PCB base plate 1's top surface 12 as much as possible, can also avoid seting up the structure of being isometric with LED lamp body 2 or length is greater than 2 through grooves 13 of LED lamp body, and then promote the intensity of the position that LED lamp body 2 was installed to PCB base plate 1.

The two through grooves 13 partially overlap at the center in the longitudinal direction of the LED lamp body 2. Through two through groove 13 at the length direction's of LED lamp body 2 central part coincidence, can guarantee that 2 length direction's of LED lamp body all positions can all derive light to PCB base plate 1's top surface 12, promote the luminous luminance of LED lamp plate.

The two ends of the through groove 13 in the length direction are respectively a first end 131 and a second end 132, the first end 131 is located at the outer side of the LED lamp body 2 in the length direction, the second end 132 is located between the two ends of the LED lamp body 2 in the length direction, the distance between the first end 131 and the end of the LED lamp body 2 adjacent to the first end 131 is L1, and L1 is greater than or equal to 0 and less than 0.5 mm. The first end 131 of the through groove 13 in the length direction cannot exceed the end of the LED lamp body 2 in the length direction too much, which occupies the space of the PCB substrate 1 and reduces the overall strength of the PCB substrate 1, and in addition, the dimension of the through groove 13 extending to the outside of the end of the LED lamp body 2 in the length direction is too long and does not increase the light guiding amount of the LED lamp body 2.

Specifically, the through groove 13 is a waist-shaped groove. The through grooves 13 are 3mm in length and 1mm in width. The size of the through groove 13 is adjusted according to the size of the LED lamp body 2. In other embodiments, the through groove 13 is not limited to a kidney-shaped groove, and may be a rectangular groove or an elliptical groove.

In addition, the distance between the through groove 13 and the bottom surface 11 of the LED lamp body 2 is L2, that is, the vertical distance between the long side of the through groove 13 and the long side of the LED lamp body 2 is L2, and L2 is not less than 0.5mm and not more than 0.8 mm. The distance cannot be too small, and the solder paste cannot be silkscreened too small, so that the strength of the PCB substrate 1 is reduced too much.

Of course, the shape of the LED lamp body 2 is not limited to a long strip, but may also be a square, a triangle, or a polygon of a pentagon and above, or even a circle, and accordingly, the arrangement position and the number of the through grooves 13 are adjusted to some extent. For example, when the LED lamp body 2 is square, the number of the through grooves 13 may be 1 or 2, the shape of the through groove 13 may be selected to be a strip, and when the number is two, the two through grooves 13 are disposed on two opposite sides of the LED lamp body 2. When the LED lamp body 2 is triangular, the through grooves 13 may also be in the shape of a bar, the length of the through grooves extends along the length direction of one of the sides of the triangular LED lamp body 2, at this time, the through grooves 13 may be formed on three sides of the triangular LED lamp body 2, the distance from the three through grooves 13 to the LED lamp body 2 is required to be different, and the three through grooves 13 are not communicated. When the LED lamp body 2 is a polygon with five or more sides, a plurality of through grooves 13 may be annularly and uniformly distributed along the circumferential direction of the LED lamp body 2, the through grooves 13 may be provided at corresponding positions on each side of the polygon, or the through grooves 13 may be provided at corresponding sides on the circumferential portion of the polygon, and the like, and the through grooves 13 may also be arranged in the circular LED lamp body 2 according to the arrangement manner of the pentagon.

The embodiment of the utility model provides a still disclose a display device, including the LED lamp plate of as above arbitrary embodiment. The specific structure of the LED lamp panel is not repeated.

In the description herein, it is to be understood that the terms "upper" and the like are used in a descriptive sense and based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, configuration and operation in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description herein, references to the description of "an embodiment" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. The utility model provides a LED lamp plate, includes PCB base plate and LED lamp body, its characterized in that, the PCB base plate is the single-sided board, the PCB base plate have the bottom surface and with the top surface that the bottom surface is relative, LED lamp body paster extremely the bottom surface, set up on the PCB base plate and run through the top surface with the logical groove of bottom surface, lead to the groove with the LED lamp body is in apart from setting distance on the bottom surface.

2. The LED lamp panel of claim 1, wherein the through grooves are formed on two opposite sides of the LED lamp body.

3. The LED lamp panel of claim 1, wherein the LED lamp body is elongated, the through groove is elongated, and the length of the through groove extends along the length direction of the LED lamp body.

4. The LED lamp panel of claim 3, wherein the through grooves are formed on both sides of the LED lamp body in the width direction.

5. The LED lamp panel of claim 4, wherein the two through grooves are arranged in a staggered manner along the length direction of the LED lamp body.

6. The LED lamp panel of claim 5, wherein the two through grooves are partially overlapped at the center of the LED lamp body in the length direction.

7. The LED lamp panel of claim 3, wherein two ends of the through groove in the length direction are respectively a first end and a second end, the first end is located at the outer side of the LED lamp body in the length direction, the second end is located between the two ends of the LED lamp body in the length direction, a distance between the first end and the end portion, adjacent to the first end, of the LED lamp body is L1, and L1 is greater than or equal to 0 and less than 0.5 mm.

8. The LED lamp panel according to any one of claims 1 to 7, wherein the through groove is any one of a waist-shaped groove, a rectangular groove and an elliptical groove.

9. The LED lamp panel according to any one of claims 1 to 7, wherein the set distance is L2, and L2 is 0.5mm or more and 0.8mm or less.

10. A display device, comprising the LED lamp panel according to any one of claims 1 to 9.

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