WO2019149081A1

WO2019149081A1 - Led light source, led module, backlight module and electronic device

Info

Publication number: WO2019149081A1
Application number: PCT/CN2019/072188
Authority: WO
Inventors: 欧阳志斌
Original assignee: Oppo广东移动通信有限公司
Priority date: 2018-02-01
Filing date: 2019-01-17
Publication date: 2019-08-08
Also published as: CN207796762U

Abstract

An LED light source (51), an LED module (50), a backlight module (20), and an electronic device. The LED light source (51) comprises a light emitting body (53), a bracket (54) and pole pieces (55). The bracket (54) is provided with a light emitting surface (501), the light emitting body (53) is encapsulated within the bracket (54), and light emitted from the light emitting body (53) is emitted from the light emitting surface (501). The pole pieces (55) comprise a first pole piece (56) and a second pole piece (57), the first pole piece (56) comprising a first body part (561) and a first welding part (562), and the second pole piece (57) comprising a second body part (571) and a second welding part (572). The first body part (561) and the second body part (571) are encapsulated within the bracket (54) and are electrically connected to the light emitting body (53). The first welding part (562) extends from the first body part (561) in the direction away from the light emitting surface (501), and a first protrusion (563) is formed by bending and protruding from the end of the first welding part (562) away from the light emitting surface (501), and the second welding part (572) extends from the second body part (571) in the direction away from the light emitting surface (501), and a second protrusion (573) is formed by bending and protruding from the end of the second welding part (572) away from the light emitting surface (501), and the first protrusion (563) and the second protrusion (573) are opposite to each other. As a result, the LED light source (51) has its lamp beads reduced in size without lowering its welding stability.

Description

LED light source, LED module, backlight module and electronic device

[Technical Field]

The present application relates to the field of lighting technologies, and in particular, to an LED light source, an LED module, a backlight module, and an electronic device.

【Background technique】

Currently, electronic devices are usually equipped with a display module, and the display module is used to display information for viewing by the user. Under the premise of a certain size of the display module, further expansion of the display area of the display module is a problem faced by engineers at present.

[Summary of the Invention]

The application provides an LED light source, the LED light source includes an illuminant, a bracket and a pole piece, the bracket is provided with a light emitting surface, the illuminant is encapsulated in the bracket, and the light emitted by the illuminant is emitted from the light emitting surface; the pole piece includes the first a pole piece and a second pole piece, the first pole piece includes a first body portion and a first welding portion, the second pole piece includes a second body portion and a second welding portion, the first body portion and the second body portion are packaged on the bracket Internally, and electrically connected to the illuminator, the first soldering portion extends from the first body portion toward the light exiting surface, and is bent and protruded at an end away from the light emitting surface to form a first protruding portion, and the second soldering portion is The second main body portion is disposed to extend away from the light emitting surface, and is bent and protruded at an end away from the light emitting surface to form a second protruding portion. The first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion. And the welding area of the second soldering portion and the circuit board, respectively.

The application also provides an LED module, the LED module comprises a circuit board and an LED light source, the circuit board is provided with a pad, the LED light source is electrically connected to the pad; the LED light source comprises an illuminant, a bracket and a pole piece, and the bracket a light-emitting surface is disposed, the light-emitting body is encapsulated in the bracket, and light emitted by the light-emitting body is emitted from the light-emitting surface; the pole piece includes a first pole piece and a second pole piece, and the first pole piece includes a first body portion and a first welding portion The second pole piece includes a second body portion and a second soldering portion. The first body portion and the second body portion are encapsulated in the bracket and electrically connected to the illuminator, and the first soldering portion is away from the first body portion The light-emitting surface extends and is bent at an end away from the light-emitting surface to form a first protrusion. The second solder portion extends from the second body portion toward the light-emitting surface, and is bent at an end away from the light-emitting surface. The second protruding portion is formed, and the first protruding portion and the second protruding portion are oppositely disposed to increase the welding area of the first welded portion and the second welded portion with the pad, respectively.

The present application further provides a backlight module, which comprises a diffusion plate, a light guide plate, a circuit board and an LED light source. The light guide plate and the diffusion plate are stacked, and the LED light source is electrically connected to the circuit board, and the light emitting surface of the LED light source is provided. Aligning with the light-incident surface of the light guide plate; the LED light source comprises an illuminant, a bracket and a pole piece, the bracket is provided with a light-emitting surface, the illuminant is encapsulated in the bracket, and the light emitted by the illuminant is emitted from the light-emitting surface; the pole piece includes the first a pole piece and a second pole piece, the first pole piece includes a first body portion and a first welding portion, the second pole piece includes a second body portion and a second welding portion, the first body portion and the second body portion are packaged on the bracket Internally, and electrically connected to the illuminator, the first soldering portion extends from the first body portion toward the light exiting surface, and is bent and protruded at an end away from the light emitting surface to form a first protruding portion, and the second soldering portion is The second main body portion is disposed to extend away from the light emitting surface, and is bent and protruded at an end away from the light emitting surface to form a second protruding portion. The first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion. And the second welded part and the electric respectively Welding area of the plate.

The present application also provides an electronic device including a display module, a diffusion plate, a light guide plate, a circuit board, and an LED light source. The display module, the diffusion plate, and the light guide plate are sequentially stacked, and the LED light source and the circuit board are electrically connected. The light-emitting surface of the LED light source is aligned with the light-incident surface of the light guide plate; the LED light source comprises an illuminant, a bracket and a pole piece, the bracket is provided with a light-emitting surface, the illuminant is encapsulated in the bracket, and the light emitted by the illuminant is emitted from the light-emitting surface Shooting; the pole piece includes a first pole piece and a second pole piece, the first pole piece includes a first body portion and a first welding portion, the second pole piece includes a second body portion and a second welding portion, the first body portion and The second body portion is encapsulated in the bracket and electrically connected to the illuminator. The first soldering portion extends from the first body portion toward the light exiting surface, and is bent at an end away from the light emitting surface to form a first protruding portion. a second soldering portion extending from the second body portion toward the light exiting surface, and bending and protruding at an end away from the light emitting surface to form a second protruding portion, wherein the first protruding portion and the second protruding portion are oppositely disposed To increase the first weld And a second portion welded portions of the circuit board welding area.

The lamp bead of the LED light source of the present application reduces the size of the lamp bead without reducing the stability of the soldering ground.

[Description of the Drawings]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application. Other drawings may also be obtained from those of ordinary skill in the art in view of the drawings.

1 is a schematic exploded view of an electronic device of the present application;

2 is a schematic cross-sectional view showing a stack of a display module and a backlight module of the present application;

3 is a schematic exploded view of a backlight module of the present application;

4 is a schematic perspective view of the LED module of the present application;

5 is a schematic perspective structural view of an embodiment of an LED light source of the present application;

Figure 6 is a schematic exploded view of the pole piece and the bracket of Figure 5.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is understood that the specific embodiments described herein are merely illustrative of the application and are not intended to be limiting. In addition, it should be noted that, for the convenience of description, only some but not all of the structures related to the present application are shown in the drawings. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The electronic device provided by the embodiment of the present application includes an electronic device such as a smart phone, a tablet computer, a smart wearable device, a digital audio and video player, an electronic reader, a handheld game machine, and an in-vehicle electronic device.

The terms "first" and "second" in this application are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back, ...) in the embodiments of the present application are only used to explain the relative positional relationship between components in a certain posture (as shown in the drawing). , the movement situation, etc., if the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms "comprises" and "comprising" and "comprising" are intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or device that comprises a series of steps or components is not limited to the listed steps or components, but optionally includes steps or components not listed, or alternatively Other steps or components inherent to these processes, methods, products or devices are included.

References to "an embodiment" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the present application. The appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art will understand and implicitly understand that the embodiments described herein can be combined with other embodiments.

Please refer to FIG. 1. FIG. 1 is a schematic exploded view of an electronic device according to the present application.

The electronic device in this embodiment may include a display module 10, a backlight module 20, a middle frame 30, and a rear case 40.

The display module 10, the backlight module 20, the middle frame 30 and the rear case 40 are sequentially stacked, and a receiving space is formed between the middle frame 30 and the rear case 40. The receiving space is for accommodating electronic components of the electronic device, such as a camera module. , battery, motherboard, microphone and speakers, etc. The display module 10 is configured to display information received by the electronic device to the user, and the backlight module 20 is configured to provide illumination for the display module 10.

2 and FIG. 3, FIG. 2 is a schematic cross-sectional view showing a stack of the display module 10 and the backlight module 20 of the present application, and FIG. 3 is a schematic exploded view of the backlight module 20 of the present application.

The backlight module 20 may include components such as an upper brightness enhancement sheet 21, a lower brightness enhancement sheet 22, a diffusion plate 23, a light guide plate 24, a light reflection sheet 25, and an LED module 50. The display module 10, the upper brightness enhancement sheet 21, the lower brightness enhancement sheet 22, the diffusion plate 23, the light guide plate 24, and the light reflection sheet 25 are sequentially stacked, and the light exit surface 501 of the LED module 50 is aligned with the light incident surface 241 of the light guide plate 24. .

The light emitted by the LED module 50 travels farther through the conduction of the light guide plate 24, the diffuser plate 23 scatters the light evenly, and the reflective sheet 25 reflects the leaked light to the diffuser plate 23, and the upper brightness enhancement sheet 21 and the lower portion The light-increasing sheet 22 turns the optical path of the light transmitted through the diffusing plate 23 perpendicular to the display module 10 to enhance the display brightness of the display module 10.

The display module 10 includes a display area and a non-display area. The non-display area is generally used to set the LED module 50 of the backlight module, and the display area is used to display information received by the electronic device to the user. In order to achieve a larger display area under the same external dimensions, the display module 10 needs to find a way to shorten the size of the non-display area, and the size of the LED module 50 is a key factor. Specifically, under the premise that the external dimensions of the display module 10 are constant, the smaller the volume of the LED module 50 in the direction perpendicular to the light exit surface 501, the smaller the size of the non-display area, and correspondingly, the display area. The size is larger.

Please refer to FIG. 4. FIG. 4 is a schematic perspective view of the LED module 50 of the present application.

The LED module 50 can include an LED light source 51 and a circuit board 52. The circuit board 52 is provided with a pad (not shown). The LED light source 51 is soldered on the pad to electrically connect the LED light source 51 and the circuit board 52. .

The number of LED light sources 51 is plural, and the LED light sources 51 may be arranged in a row on the circuit board 52. The LED light sources 51 may also be arranged in a plurality of rows on the circuit board 52, and are surrounded by a triangle, a quadrangle, and a circle on the circuit board 52. Or an opposite sex or the like, in which the light-emitting surface 501 of the LED light source 51 and the light guide plate 24 are aligned perpendicular to either side of the diffusion plate 23 (see the figure).

The circuit board 52 can be a rigid PCB board, the hard PCB board is well cooled, and the LED light source 51 is soldered stably and firmly. The circuit board 52 can also be a flexible FPC board having a small thickness that can reduce the size of the LED light source 51 in a direction parallel to its light exit surface 501.

Please refer to FIG. 5. FIG. 5 is a schematic perspective structural view of an embodiment of the LED light source 51 of the present application.

The LED light source 51 can include an illuminator 53, a bracket 54 and a pole piece 55. The bracket 54 is provided with a light-emitting surface 501. The illuminant 53 is enclosed in the bracket 54. The light emitted by the illuminant 53 is emitted from the light-emitting surface 501, and the pole piece 55 is respectively The illuminator 53 is connected to a pad (not shown) of the circuit board 52 to electrically connect the circuit board 52 to the illuminator 53.

The bracket 54 may be a plastic piece, the pole piece 55 may be a metal piece, and the bracket 54 and the pole piece 55 may be integrally molded by integral injection molding, and the bracket 54 and the pole piece 55 may also be separately manufactured and then assembled.

Please refer to FIG. 6 at the same time. FIG. 6 is a schematic exploded view of the pole piece 55 and the bracket 54 of FIG. The pole piece 55 may include a first pole piece 56 and a second pole piece 57, the first pole piece 56 and the second pole piece 57 being spaced apart to insulate each other.

The first pole piece 56 may include a first body portion 561 and a first soldering portion 562. The first body portion 561 is encapsulated in the bracket 54 and electrically connected to the illuminant (refer to the illuminant 53 in FIG. 5). The soldering portion 562 extends from the first main body portion 561 toward the distance from the light emitting surface 501, and is bent and protruded at an end away from the light emitting surface 501 to form a first protruding portion 563, the first protruding portion 563 and the first soldering portion 562. It is used for soldering connection with a circuit board (not shown) to increase the soldering area of the first pole piece 56 and the circuit board. The first soldering portion 562 may be bent and protruded parallel to the light emitting surface 501 at one end away from the light emitting surface 501 to form a first protruding portion 563. The first soldering portion 562 may also be bent toward the light emitting surface 501 at an end away from the light emitting surface 501. The first protrusion 563 is formed by folding and folding, which is not limited herein.

The shape of the first welded portion 562 may be square, circular, triangular or opposite, which is not limited herein.

The second pole piece 57 may include a second body portion 571 and a second soldering portion 572. The second body portion 571 is encapsulated in the bracket 54 and electrically connected to the illuminant (refer to the illuminant 53 in FIG. 5). The soldering portion 572 extends from the second main body portion 571 toward the distance from the light emitting surface 501, and is bent and protruded at an end away from the light emitting surface 501 to form a second protruding portion 573, the second protruding portion 573 and the second soldering portion 572. It is used for soldering connection with the circuit board to increase the soldering area of the second pole piece 57 and the circuit board. The second soldering portion 572 can be bent and protruded parallel to the light exiting surface 501 to form a second protruding portion 573. The second soldering portion 572 can also be bent toward the light emitting surface 501 at an end away from the light emitting surface 501. The second protrusion 573 is formed by folding and forming, which is not limited herein.

The shape of the second soldering portion 572 may be square, circular, triangular or opposite, which is not limited herein.

The bracket 54 includes a longitudinal direction, a thickness direction, and a width direction, and the longitudinal direction, the thickness direction, and the width direction are perpendicular to each other, and the width direction is perpendicular to the light exit surface 501. The first welded portion 562 and the second welded portion 572 are disposed at opposite ends of the bracket 54 in the longitudinal direction of the bracket 54. The first protruding portion 563 and the second protruding portion 573 are oppositely disposed.

In the present embodiment, by reducing the size of the first soldering portion 562 and the second soldering portion 572 in a direction perpendicular to the light-emitting surface 501, the volume of the LED light source in the direction perpendicular to the light-emitting surface 501 is reduced. purpose. However, in order not to affect the welding stability of the LED light source and the circuit board. The first protruding portion 563 and the second protruding portion 573 are respectively protruded from the first soldering portion 562 and the second soldering portion 572, and the first protruding portion 563 and the second protruding portion 573 are parallel or directed toward the light. The surface of the surface 501 is convexly disposed, and the welding area of the LED light source and the circuit board is increased without increasing the volume of the LED light source in the direction perpendicular to the light-emitting surface 501, thereby ensuring welding of the LED light source and the circuit board. stability.

The first pole piece 56 further includes a first bent portion 564 that is bent along one side of the first welded portion 562. The first bent portion 564 and the first protruding portion 563 may be disposed at the opposite side of the first welded portion 562. On both sides, the first bent portion 564 abuts on the bracket 54 , and the first bent portion 564 is used to increase the contact area between the first pole piece 56 and the bracket 54 , thereby improving the stability of the connection between the first pole piece 56 and the bracket 54 . Further, the first bent portion 564 is bent in the thickness direction of the bracket 54. The first bent portion 564 may be disposed on the same side of the first welded portion 562 as the first protruding portion 563, which is not limited herein.

The second pole piece 57 further includes a second bent portion 574 which is bent along one side of the second welded portion 572, and the second bent portion 574 and the second protruding portion 573 may be disposed at the opposite side of the second welded portion 572 On both sides, the second bent portion 574 abuts on the bracket 54 , and the second bent portion 574 is used to increase the contact area between the second pole piece 57 and the bracket 54 , thereby improving the stability of the connection between the second pole piece 57 and the bracket 54 . Further, the second bent portion 574 is bent in the thickness direction of the bracket 54. The second bent portion 574 may be disposed on the same side of the second welded portion 572 as the second protruding portion 573, which is not limited herein.

The bracket 54 includes a receiving portion 541 and a sealing portion 542. The illuminating body is housed in the accommodating portion 541. The sealing portion 542 is connected to the accommodating portion 541 to seal the accommodating portion 541. The end surface of the accommodating portion 541 away from the sealing portion 542 is a light emitting surface 501.

The first body portion 561 and the second body portion 571 may be embedded in the sealing portion 542 and parallel to the light exit surface 501 to be laminated with the illuminant. The first body portion 561 and the second body portion 571 may be embedded in the accommodating portion 541 and parallel to the light-emitting surface 501 to be laminated with the illuminant. The first soldering portion 562 and the second soldering portion 572 abut against the sealing portion 542 toward the surface of the circuit board, respectively.

Further, the sealing portion 542 is provided with a first accommodating groove 543 and a second accommodating groove 544. The first accommodating groove 543 and the second accommodating groove 544 are disposed at opposite ends of the sealing portion 542 in the longitudinal direction. A soldering portion 562 extends from the first body portion 561 along the bottom wall of the first receiving groove 543, and the first protruding portion 563 is received in the first receiving groove 543 to reduce the thickness of the LED light source in the bracket 54. The volume in the direction. The second soldering portion 572 extends from the second body portion 571 along the bottom wall of the second receiving groove 544, and the second protruding portion 573 is received in the second receiving groove 544 to reduce the LED light source in the bracket 54. Volume in the thickness direction.

Optionally, the shape of the first accommodating groove 543 may be L-shaped, that is, the first accommodating groove 543 further extends in the thickness direction of the bracket 54 , and the first bending portion 564 is received in the first accommodating groove. Within 543, thereby reducing the volume of the bracket 54 in the length direction. The shape of the second accommodating groove 544 may be L-shaped, that is, the second accommodating groove 544 is further extended in the thickness direction of the bracket 54 , and the second bent portion 574 is received in the second accommodating groove 544 , thereby The volume of the bracket 54 in the length direction is reduced.

Specifically, the one end of the first welded portion 562 and the second welded portion 572 away from the light-emitting surface 501 does not exceed the sealing portion 542 . That is, the end surface of the sealing portion 542 away from the one end of the light-emitting surface 501 may be flush with the end surface corresponding to the first soldering portion 562 and the second soldering portion 572, and the end surface of the sealing portion 542 away from the end of the light-emitting surface 501 may also exceed the first soldering portion 562. An end surface corresponding to the second welded portion 572.

A heat dissipating groove 545 is provided at one end of the sealing portion 542 facing away from the accommodating portion 541 to increase the heat dissipating area of the illuminating body. In addition, when the bracket 54 is a plastic member, the heat sink 545 can serve as a glue injection port, and the protruding portion of the glue injection port is received in the heat dissipation groove 545, so that the size of the bracket 54 in the direction of the vertical light exit surface 501. Reduced.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of this application.

Claims

An LED light source, comprising: an illuminant, a bracket and a pole piece, the bracket is provided with a light emitting surface, the illuminant is encapsulated in the bracket, and light emitted by the illuminator is emitted from the light Shot out

The pole piece includes a first pole piece and a second pole piece, the first pole piece includes a first body portion and a first welded portion, and the second pole piece includes a second body portion and a second welded portion, The first body portion and the second body portion are encapsulated in the bracket and electrically connected to the illuminator, and the first soldering portion extends from the first body portion toward the light exiting surface Arranging and bending at an end away from the light-emitting surface to form a first protrusion, the second soldering portion extending from the second body portion away from the light-emitting surface, and away from the One end of the light-emitting surface is bent and protrudes to form a second protruding portion, and the first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion and the second welded portion respectively The soldering area of the board.
The LED light source of claim 1 wherein

The first body portion and the second body portion are respectively laminated with the illuminants and spaced apart from each other.
The LED light source of claim 1 wherein

The bracket includes a receiving portion and a sealing portion, wherein the illuminating body is received in the accommodating portion, and the sealing portion is connected to the accommodating portion to seal the accommodating portion, wherein the accommodating portion is away from the sealing portion The first main body portion and the second main body portion are embedded in the accommodating portion and parallel to the illuminating surface, and the first welded portion and the second welded portion are respectively attached Relying on the surface of the seal.
The LED light source of claim 3, wherein

The sealing portion is provided with a first accommodating groove and a second accommodating groove, and the first accommodating groove and the second accommodating groove are disposed at opposite ends of the sealing portion, the first welded portion Extending from the first body portion along the bottom wall of the first accommodating groove, the first protruding portion is received in the first accommodating groove, and the second welded portion is from the The second body portion extends along a bottom wall of the second receiving groove, and the second protruding portion is received in the second receiving groove.
The LED light source of claim 4, wherein

The first pole piece further includes a first bent portion that is bent along one side of the first welded portion, the first bent portion and the first protruding portion being disposed at the first welding The second pole piece further includes a second bent portion disposed along one side of the second welded portion, and the second bent portion and the second protruding portion are disposed on opposite sides of the portion The first bent portion and the second bent portion abut against the sealing portion on opposite sides of the second welded portion.
The LED light source of claim 5, wherein

The first bent portion is further bent in a thickness direction of the welded portion, the shape of the first receiving groove is L-shaped, and the first bent portion is received in the first receiving groove The second bent portion is further bent along a thickness direction of the welded portion, the second receiving groove has an L shape, and the second bent portion is received in the second portion Set in the slot.
The LED light source of claim 3, wherein

A heat dissipating groove is disposed at one end of the sealing portion facing away from the light emitting surface.
An LED module, comprising: a circuit board and an LED light source, wherein the circuit board is provided with a pad, and the LED light source is electrically connected to the pad;

The LED light source includes an illuminant, a bracket and a pole piece, the bracket is provided with a light emitting surface, the illuminant is encapsulated in the bracket, and light emitted by the illuminating body is emitted from the light emitting surface;

The pole piece includes a first pole piece and a second pole piece, the first pole piece includes a first body portion and a first welded portion, and the second pole piece includes a second body portion and a second welded portion, The first body portion and the second body portion are encapsulated in the bracket and electrically connected to the illuminator, and the first soldering portion extends from the first body portion toward the light exiting surface Arranging and bending at an end away from the light-emitting surface to form a first protrusion, the second soldering portion extending from the second body portion away from the light-emitting surface, and away from the One end of the light-emitting surface is bent and protrudes to form a second protruding portion, and the first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion and the second welded portion respectively The soldering area of the pad.
The LED module of claim 8 wherein:

The bracket includes a receiving portion and a sealing portion, wherein the illuminating body is received in the accommodating portion, and the sealing portion is connected to the accommodating portion to seal the accommodating portion, wherein the accommodating portion is away from the sealing portion The first main body portion and the second main body portion are embedded in the accommodating portion and parallel to the illuminating surface, and the first welded portion and the second welded portion are respectively attached Relying on the surface of the seal.
The LED module according to claim 9, wherein

The sealing portion is provided with a first accommodating groove and a second accommodating groove, and the first accommodating groove and the second accommodating groove are disposed at opposite ends of the sealing portion, the first welded portion Extending from the first body portion along the bottom wall of the first accommodating groove, the first protruding portion is received in the first accommodating groove, and the second welded portion is from the The second body portion extends along a bottom wall of the second receiving groove, and the second protruding portion is received in the second receiving groove.
The LED module of claim 10, wherein

The first pole piece further includes a first bent portion that is bent along one side of the first welded portion, the first bent portion and the first protruding portion being disposed at the first welding The second pole piece further includes a second bent portion disposed along one side of the second welded portion, and the second bent portion and the second protruding portion are disposed on opposite sides of the portion The first bent portion and the second bent portion abut against the sealing portion on opposite sides of the second welded portion.
The LED module of claim 11 wherein:

The first bent portion is further bent in a thickness direction of the welded portion, the shape of the first receiving groove is L-shaped, and the first bent portion is received in the first receiving groove The second bent portion is further bent along a thickness direction of the welded portion, the second receiving groove has an L shape, and the second bent portion is received in the second portion Set in the slot.
A backlight module, comprising: a diffusion plate, a light guide plate, a circuit board, and an LED light source, wherein the light guide plate and the diffusion plate are stacked, and the LED light source is electrically connected to the circuit board. The light emitting surface of the LED light source is aligned with the light incident surface of the light guide plate;

The LED light source includes an illuminator, a bracket and a pole piece, the bracket is provided with the illuminating surface, the illuminant is encapsulated in the bracket, and light emitted by the illuminating body is emitted from the illuminating surface;

The pole piece includes a first pole piece and a second pole piece, the first pole piece includes a first body portion and a first welded portion, and the second pole piece includes a second body portion and a second welded portion, The first body portion and the second body portion are encapsulated in the bracket and electrically connected to the illuminator, and the first soldering portion extends from the first body portion toward the light exiting surface Arranging and bending at an end away from the light-emitting surface to form a first protrusion, the second soldering portion extending from the second body portion away from the light-emitting surface, and away from the One end of the light-emitting surface is bent and protrudes to form a second protruding portion, and the first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion and the second welded portion respectively The soldering area of the board.
A backlight module according to claim 13, wherein

The bracket includes a receiving portion and a sealing portion, wherein the illuminating body is received in the accommodating portion, and the sealing portion is connected to the accommodating portion to seal the accommodating portion, wherein the accommodating portion is away from the sealing portion The first main body portion and the second main body portion are embedded in the accommodating portion and parallel to the illuminating surface, and the first welded portion and the second welded portion are respectively attached Relying on the surface of the seal.
The backlight module of claim 14, wherein

The sealing portion is provided with a first accommodating groove and a second accommodating groove, and the first accommodating groove and the second accommodating groove are disposed at opposite ends of the sealing portion, the first welded portion Extending from the first body portion along the bottom wall of the first accommodating groove, the first protruding portion is received in the first accommodating groove, and the second welded portion is from the The second body portion extends along a bottom wall of the second receiving groove, and the second protruding portion is received in the second receiving groove.
The backlight module according to claim 15, wherein

The first pole piece further includes a first bent portion that is bent along one side of the first welded portion, the first bent portion and the first protruding portion being disposed at the first welding The second pole piece further includes a second bent portion disposed along one side of the second welded portion, and the second bent portion and the second protruding portion are disposed on opposite sides of the portion The first bent portion and the second bent portion abut against the sealing portion on opposite sides of the second welded portion.
The backlight module of claim 16, wherein

The first bent portion is further bent in a thickness direction of the welded portion, the shape of the first receiving groove is L-shaped, and the first bent portion is received in the first receiving groove The second bent portion is further bent along a thickness direction of the welded portion, the second receiving groove has an L shape, and the second bent portion is received in the second portion Set in the slot.
An electronic device, comprising: a display module, a diffusion plate, a light guide plate, a circuit board, and an LED light source, wherein the display module, the diffusion plate and the light guide plate are sequentially stacked, the LED light source Electrically connecting with the circuit board, the light emitting surface of the LED light source is aligned with the light incident surface of the light guide plate;

The LED light source includes an illuminator, a bracket and a pole piece, the bracket is provided with the illuminating surface, the illuminant is encapsulated in the bracket, and light emitted by the illuminating body is emitted from the illuminating surface;

The pole piece includes a first pole piece and a second pole piece, the first pole piece includes a first body portion and a first welded portion, and the second pole piece includes a second body portion and a second welded portion, The first body portion and the second body portion are encapsulated in the bracket and electrically connected to the illuminator, and the first soldering portion extends from the first body portion toward the light exiting surface Arranging and bending at an end away from the light-emitting surface to form a first protrusion, the second soldering portion extending from the second body portion away from the light-emitting surface, and away from the One end of the light-emitting surface is bent and protrudes to form a second protruding portion, and the first protruding portion and the second protruding portion are oppositely disposed to increase the first welded portion and the second welded portion respectively The soldering area of the board.
The LED light source of claim 18, wherein

The first body portion and the second body portion are respectively laminated with the illuminants and spaced apart from each other.
The LED light source of claim 18, wherein

The bracket includes a receiving portion and a sealing portion, wherein the illuminating body is received in the accommodating portion, and the sealing portion is connected to the accommodating portion to seal the accommodating portion, wherein the accommodating portion is away from the sealing portion The first main body portion and the second main body portion are embedded in the accommodating portion and parallel to the illuminating surface, and the first welded portion and the second welded portion are respectively attached Relying on the surface of the seal.