Backlight module

Abstract

A backlight module includes a light guide plate, a light source, a fixing element, and a resilient element. The light guide plate has an entrance surface. The light source has opposite light emitting and back sides, the light emitting side facing the entrance surface. The fixing element is disposed opposite the back side. The resilient element connects the fixing element, wherein the resilient element is adapted to push the light source against the entrance surface.

Description

TECHNICAL FIELD

[0001] The present invention relates to a backlight module. BACKGROUND

[0002] A liquid crystal display device mainly includes a backlight module, a display panel, a frame and the like. According to the light-in method, the backlight module can be divided into a side-light type backlight module and a direct-light type backlight module. Generally, the side-light type backlight module has the advantages of thin thickness and low cost; on the other hand, the direct-light type backlight module has a better area light modulation effect, so that the picture has a better contrast.

[0003] The side-light type backlight module converts the light generated by the light source into a surface light source by means of a light guide plate. However, the heat generated by the light source will cause the temperature of the light guide plate to rise, and thus cause the volume of the light guide plate to expand. Similarly, after the light source is turned off, the volume of the light guide plate will gradually decrease due to the decrease in temperature. Therefore, the distance between the light source and the light guide plate will change with the change in the volume of the light guide plate, causing the optical quality of the backlight module to be unstable. SUMMARY

[0004] The present invention provides a backlight module, so that the distance between the light source and the light guide plate can be kept fixed to provide stable optical quality.

[0005] To achieve one or some or all of the above objects or other objects, the backlight module provided by the present invention includes a light guide plate, a light source, a fixing element and an elastic element. The light guide plate has a light-in surface. The light source has opposite light-emitting sides and a back side, and the light-emitting sides face the light-in surface. The fixing element is arranged opposite the back side. The elastic element is connected to the fixing element, and the elastic element is adapted to push the light source against the light-in surface.

[0006] In an embodiment of the present invention, the elastic element described above is, for example, in the form of a plate, and can have a seat portion and an elastic portion. The seat portion is fixed to the fixing element and opposite the back side. The elastic portion is connected to the seat portion and bent opposite the seat portion. The elastic portion is adapted to abut against the back side.

[0007] In an embodiment of the present invention, the shape of the elastic portion described above can include a first triangular shape, and has opposite first edges and a first corner. The first edges are connected to the seat portion, and the first corner is adapted to abut against the back side.

[0008] In an embodiment of the present invention, the elastic portion described above further includes a second triangular shape. The first triangular shape can further have a second edge, and the second edge is adjacent between the first edge and the first corner. The second triangular shape has a third edge, a fourth edge and a second corner. The third edge is opposite the second corner, and the fourth edge is adjacent between the third edge and the second corner. The third edge is connected to the seat portion. The second edge is adjacent to the fourth edge. The first corner is adjacent to the second corner, and the first corner and the second corner adjacent to each other are adapted to abut against the back side.

[0009] In one embodiment of the present application, the elastic portion has, for example, a plane of symmetry. The plane of symmetry passes through the second edge and the fourth edge that are adjacent to each other, and the first triangle and the second triangle are symmetrical with respect to the plane of symmetry.

[0010] In one embodiment of the present application, the elastic portion can include a first quadrangle, and the first quadrangle has a first fixed side and a first abutting side. The first fixed side is connected to the seat portion. The first abutting side is opposite to the first fixed side and is adapted to abut against the back side.

[0011] In one embodiment of the present application, the elastic portion further includes, for example, a second quadrangle. The seat portion can include a first portion and a second portion that are separated from each other. The first fixed side is connected to the first portion. The second quadrangle has a second fixed side and a second abutting side. The second fixed side is connected to the second portion. The second abutting side is opposite to the second fixed side and is connected to the first abutting side. The elastic portion further has a plane of symmetry passing between the first abutting side and the second abutting side, and the first quadrangle and the second quadrangle are symmetrical with respect to the plane of symmetry.

[0012] In one embodiment of the present application, the elastic element further has a fixing portion. The light source can include a substrate and a light emitting element disposed on the substrate. The light emitting side is located on a side of the light emitting element that faces away from the substrate, and the back side is located on a side of the substrate that faces away from the light emitting element. The fixing portion is connected to the seat portion and is fixed to the substrate.

[0013] In one embodiment of the present application, the substrate can have a surface and a side surface. The surface faces away from the back side, and the side surface is connected to the surface. The fixing portion is plate-shaped and has a first segment and a second segment. The first segment is connected to the second segment and the seat portion and is opposite to the side surface. The second segment is fixed to the surface.

[0014] In one embodiment of the present application, the elastic portion can have a first fixed side and a first abutting side. The first fixed side is connected to the seat portion. The first abutting side is opposite to the first fixed side and is adapted to abut against the back side. The fixing portion is plate-shaped and is connected to the first abutting side, and the fixing portion is adapted to abut against the back side.

[0015] In one embodiment of the present application, the fixing portion can have a first plate body, a second plate body, and a third plate body. The first plate body is connected to the first abutting side and is opposite to the third plate body. The second plate body is connected to the first plate body and the third plate body. The substrate is sandwiched between the first plate body and the third plate body.

[0016] The backlight module of the present application uses the elastic element to push against the light source, so that the light source can be tightly close to the light-incident surface of the light guide plate, or the distance between the light source and the light-incident surface is maintained at a fixed value. Based on the above structure, even if the volume of the light guide plate changes, the distance between the light source and the light-incident surface can still be kept fixed, so that the backlight module of the present application can provide stable optical quality.

[0017] The above description is only a summary of the technical solutions of the present application. In order to make the technical solutions of the present application more clearly understood and implemented, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below with reference to the contents of the description and in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a partial sectional view of a backlight module according to an embodiment of the present application.

[0019] Figure 2 is a sectional view of a backlight module according to an embodiment of the present application. Figure 1 is a sectional view of a backlight module according to an embodiment of the present application.

[0020] Figure 3 is a sectional view of a backlight module according to an embodiment of the present application. Figure 1 is a sectional view of a backlight module according to an embodiment of the present application.

[0021] Figure 4 is a sectional view of a backlight module according to an embodiment of the present application.

[0022] Figure 5 is a sectional view of a backlight module according to an embodiment of the present application. Figure 4 is a sectional view of a backlight module according to an embodiment of the present application.

[0023] Figure 6 is a sectional view of a backlight module according to an embodiment of the present application.

[0024] Figure 7 is a sectional view of a backlight module according to an embodiment of the present application. Figure 6 is a sectional view of a backlight module according to an embodiment of the present application.

[0025] Figure 8 is a sectional view of a backlight module according to an embodiment of the present application. Figure 6 is a sectional view of a backlight module according to an embodiment of the present application.

[0026] Figure 9 is a sectional view of a backlight module according to an embodiment of the present application.

[0027] Figure 10 is a sectional view of a backlight module according to an embodiment of the present application. Figure 9 is a sectional view of a backlight module according to an embodiment of the present application.

[0028] Figure 11 is a sectional view of a backlight module according to an embodiment of the present application.

[0029] Figure 12 is a sectional view of a backlight module according to an embodiment of the present application. Figure 11 is a sectional view of a backlight module according to an embodiment of the present application. DETAILED DESCRIPTION

[0030] Figure 1 is a partial cross-sectional view of a backlight module according to an embodiment of the present application. Figure 2 is Figure 1 is a schematic view of the elastic portion of the elastic element of the backlight module of Figure 3 is Figure 1 is a perspective view of the elastic element of Figure 1 and Figure 2 The backlight module 100 includes a light guide plate 110, a light source 120, a fixing element 130, and an elastic element 140. The light guide plate 110 has an incident light surface 111. The light source 120 has opposite light emitting side 121 and back side 122, and the light emitting side 121 faces the incident light surface 111. The fixing element 130 is disposed opposite to the back side 122. The elastic element 140 connects the fixing element 130, wherein the elastic element 140 is adapted to push the light source 120 against the incident light surface 111.

[0031] The light beam generated by the light source 120 is emitted from the light emitting side 121. Specifically, the light source 120 can include a substrate 123 and a light emitting element 124 disposed on the substrate 123. The light emitting side 121 is located on the side of the light emitting element 124 opposite to the substrate 123, and the back side 122 is located on the side of the substrate 123 opposite to the light emitting element 124. Further, the substrate 123 is, for example, a circuit board, and the light emitting element 124 can be electrically connected to the circuit board. The light emitting element 124 of the present embodiment can include a light-emitting diode (LED), but the present application is not limited thereto.

[0032] In the present embodiment, the elastic element 140 is capable of pushing the light source 120 from the back side 122, so that the light emitting side 121 of the light source 120 abuts against the incident light surface 111 of the light guide plate 110. However, in an embodiment, the elastic element 140 can maintain a constant distance between the light emitting side 121 and the incident light surface 111. For example, the light source 120 can further be provided with a support (not shown), which can abut between the substrate 123 and the incident light surface 111, so that the light emitting side 121 is spaced apart from the incident light surface 111 and the distance between the light emitting side 121 and the incident light surface 111 is maintained. Please refer to Figure 1 and Figure 3The elastic element 140 of the present embodiment is, for example, in a plate shape, and can have a seat portion 141 and an elastic portion 142. The seat portion 141 is fixed to the fixing element 130 and opposite to the back side 122. The elastic portion 142 is connected to the seat portion 141 and bent opposite to the seat portion 141. The elastic portion 142 is adapted to abut against the back side 122. In short, the elastic element 140 can be a thin plate spring, and the elastic element 140 can be formed by cutting and folding a metal sheet, but the present application does not limit the process of the elastic element 140. In addition, the seat portion 141 of the present embodiment can be in a plate shape to increase the contact area with the fixing element 130. In this way, the seat portion 141 can be more stably fixed to the fixing element 130, and can more quickly conduct the heat energy generated by the light source 120 to the fixing element 130, thereby improving the heat dissipation efficiency of the light source 120. Please refer to Figure 1 , Figure 2 and Figure 3 Furthermore, the elastic portion 142 can include a first triangular shape 1421 and have opposite first edges E1 (shown in Figure 3 ) and first corners C1. The first edges E1 are connected to the seat portion 141, and the first corners C1 are adapted to abut against the back side 122. For example, the first corners C1 can be sharp corners, but other embodiments are not limited thereto. In addition, in the present embodiment, the seat portion 141 can be in a trapezoidal shape, but the present application does not limit thereto.

[0033] Please continue to refer to Figure 1 and Figure 3 The elastic element 140 of the present embodiment can also have a fixing portion 143. The fixing portion 143 is connected to the seat portion 141 and fixed to the substrate 123. In this way, the elastic element 140 can be more stably fixed to the light source 120, and the fixing portion 143 can also provide additional heat conduction area, thereby further improving the heat dissipation efficiency of the elastic element 140 to the light source 120. Furthermore, the substrate 123 can have a surface S1 and a side surface S2. The surface S1 faces away from the back side 122, and the side surface S2 is connected to the surface S1. The fixing portion 143 can be in a plate shape and have a first segment L1 and a second segment L2. The first segment L1 is connected to the second segment L2 and the seat portion 141 and opposite to the side surface S2. The second segment L2 is fixed to the surface S1. In detail, the first segment L1 is, for example, bent opposite to the seat portion 141 and spaced apart from the substrate 123; in addition, the second segment L2 can be bent opposite to the first segment L1 and, for example, substantially parallel to the seat portion 141. However, in an embodiment, the first segment L1 can be fixed to the side surface S2 of the substrate 123. In the present embodiment, the first segment L1 and the second segment L2 can be in a quadrilateral shape, and Figure 3 the first segment L1 and the second segment L2 of the present embodiment are both shown as rectangles, but the present application does not limit thereto.

[0034] By the way, as Figure 2The number of the elastic elements 140 in the embodiment shown is, for example, plural, and the number of the elastic elements 140 can be adjusted according to the force applied to the light source 120 and the heat dissipation requirement, etc., and thus the present application does not make more limitation on this. It can be understood that in an embodiment, the backlight module 100 (marked in Figure 1 ) can also include another group of light sources, and the other group of light sources can be arranged on the opposite side of the light guide plate 110 with the light source 120; similarly, the other group of light sources can be pushed against by another group of elastic elements to maintain a fixed distance with the light guide plate 110.

[0035] Please refer to Figure 1 , the fixing element 130 in the embodiment is, for example, a back bezel. In detail, the fixing element 130 can have a bottom wall W1 and a side wall W2 connected (also shown in Figure 2 ), wherein the light source 120 and the light guide plate 110 can be arranged on the bottom wall W1, and the elastic element 140 can be fixed to the side wall W2. However, the present application does not make more limitation on the specific structure of the fixing element 130.

[0036] In the embodiment, the material of the light guide plate 110 can include Polymethylmethacrylate (PMMA); however, in other embodiments, the material of the light guide plate 110 can include Cyclo olefin polymer (COP) or Polycarbonate (PC). In addition, the light guide plate 110 in the embodiment can be made by hot pressing or injection molding, but the present application does not make more limitation on this.

[0037] Compared with the prior art, the backlight module 100 in the embodiment uses the elastic element 140 to push against the light source 120, so that the light source 120 can be tightly close to the light-incident surface 111 of the light guide plate 110, or the distance between the light source 120 and the light-incident surface 111 is maintained at a fixed value. Based on the above structure, even if the volume of the light guide plate 110 changes, the distance between the light source 120 and the light-incident surface 111 can still be kept fixed, so that the backlight module 100 in the embodiment can provide stable optical quality. In addition, because the elastic element 140 in the embodiment pushes against the light source 120, rather than the light guide plate 110, the backlight module 100 in the embodiment can also provide more stable optical quality.

[0038] Figure 4 is a schematic view of the elastic part of the elastic element of the backlight module in another embodiment of the present application pushing against the light source. Figure 5 is a perspective view of the elastic element of Figure 4 . The structure and advantages of the backlight module 100a in the embodiment are similar to those of the embodiment of Figure 1 , and only the differences are described below. Please refer toFigure 4 and Figure 5 The elastic portion 142a comprises a second trapezoid 1422 in addition to the first trapezoid 1421. The first trapezoid 1421 can also have a second edge E2, and the second edge E2 is adjacent to the first edge E1 and the first corner C1. The second trapezoid 1422 has a third edge E3, a fourth edge E4, and a second corner C2. The third edge E3 is opposite to the second corner C2, and the fourth edge E4 is adjacent to the third edge E3 and the second corner C2. The third edge E3 is connected to the seat portion 141a. The second edge E2 is adjacent to the fourth edge E4. The first corner C1 is adjacent to the second corner C2, and the first corner C1 and the second corner C2 adjacent to each other are adapted to abut against the back side 122. In short, the elastic element 140a pushes against the light source 120 via the first trapezoid 1421 and the second trapezoid 1422, so that the elastic element 140a can push against the light source 120 with more stable and uniform directional force, so that the distance between the light source 120 and the light-incident surface 111 is easier to keep fixed, and thus the backlight module 100a can provide more stable optical quality. In detail, the elastic portion 142a has a symmetry plane SP, for example. The symmetry plane SP passes through the second edge E2 and the fourth edge E4 adjacent to each other, and the first trapezoid 1421 and the second trapezoid 1422 are symmetrical to the symmetry plane SP; therefore, the elastic element 140a can more stably and uniformly provide directional force to push against the light source 120, and thus the backlight module 100a can provide more stable optical quality. Please continue to refer to Figure 5 By the way, the seat portion 141a and the fixing portion 143a are symmetrical to the symmetry plane SP, for example, wherein the seat portion 141a can be substantially perpendicular to the symmetry plane SP. In this embodiment, the seat portion 141a can comprise two trapezoids symmetrical to the symmetry plane SP, and the first trapezoid 1421 and the second trapezoid 1422 can be adjacent to the oblique edges of the two trapezoids, respectively, but the present application does not limit these details too much.

[0039] Figure 6 is a schematic view of the elastic portion of the plurality of elastic elements of the backlight module of another embodiment of the present application pushing against the light source. Figure 7 is Figure 6 is a perspective schematic view of the elastic element of Figure 8 is Figure 6 is a partial cross-sectional schematic view of the backlight module of Figure 1 the embodiment, only the differences will be described below. Please refer to Figure 6 and Figure 7The elastic part 142b of the elastic element 140b can include a first quadrangle 1421b, and the first quadrangle 1421b has a first fixed side FS1 and a first abutting side AS1. The first fixed side FS1 is connected to the seat part 141b. The first abutting side AS1 is opposite to the first fixed side FS1 and is adapted to abut against the back side 122. Further, the first quadrangle 1421b can be a rectangle, and the first abutting side AS1 and the first fixed side FS1 are, for example, opposite two long sides of the rectangle. In addition, the first fixed side FS1 is, for example, adjacent to the seat part 141b. It is noted that the seat part 141b can be a quadrangle, but the present application is not limited thereto. In the present embodiment, the fixing part 143b can be a plate and is connected to the first abutting side AS1, and the fixing part 143b is adapted to abut against the back side 122. In detail, the fixing part 143b in the form of a plate can further increase the contact area with the light source 120, and thus the fixing part 143b can be more firmly fixed to the light source 120 and can further improve the heat dissipation efficiency of the fixing part 143b to the light source 120. Please refer to Figure 7 and Figure 8 In the present embodiment, the fixing part 143b can have a first plate P1, a second plate P2 and a third plate P3. The first plate P1 is connected to the first abutting side AS1 and is opposite to the third plate P3. The second plate P2 is connected to the first plate P1 and the third plate P3. The substrate 123 is sandwiched between the first plate P1 and the third plate P3. In this way, the fixing part 143b can be more firmly fixed to the light source 120, and the area of the fixing part 143b contacting the light source 120 can be further increased, thereby further improving the heat dissipation efficiency of the fixing part 143b to the light source 120. In particular, the first plate P1 and the third plate P3 can hold opposite sides of the substrate 123, and the second plate P2 is spaced apart from the side surface S2 of the substrate 123. However, in an embodiment, the second plate P2 can contact the side surface S2 of the substrate 123. It is noted that, as shown in Figure 7 the first plate P1 of the present embodiment can be adjacent to the first abutting side AS1, and the first plate P1 can be in the form of a frame, but the present application is not limited to these details.

[0040] Figure 9 is a schematic view of the elastic part of the plurality of elastic elements of the backlight module of another embodiment of the present application abutting against the light source. Figure 10 is a schematic view of the elastic element of Figure 9 . The structure and advantages of the backlight module 100c of the present embodiment are similar to those of the embodiment of Figure 6 . Only the differences will be described below. Please refer to Figure 9 and Figure 10 The elastic part 142c of the elastic element 140c further includes, for example, a second quadrangle 1422c. The seat part 141c (marked in Figure 10) can include a first portion 1411c and a second portion 1412c separated from each other. The first fixed side FS1 is connected to the first portion 1411c. The second quadrilateral 1422c has a second fixed side FS2 and a second abutting side AS2. The second fixed side FS2 is connected to the second portion 1412c. The second abutting side AS2 is opposite to the second fixed side FS2 and is connected to the first abutting side AS1. The elastic portion 142c further has a symmetry plane SP1 between the first abutting side AS1 and the second abutting side AS2, and the first quadrilateral 1421c and the second quadrilateral 1422c are symmetrical to the symmetry plane SP1. In this way, the elastic portion 142c can stably and uniformly apply force to the light source 120, so that the distance between the light source 120 and the light-incident surface 111 is easier to be fixed, and thus the backlight module 100c can provide more stable optical quality. In detail, as shown in Figure 10 the first abutting side AS1 and the second abutting side AS2 can be connected to the second plate body P2 of the fixed portion 143c, and the symmetry plane SP1 can pass through the part of the second plate body P2 between the first abutting side AS1 and the second abutting side AS2. In addition, the first portion 1411c and the second portion 1412c can be symmetrical to the symmetry plane SP1, and the fixed portion 143c can be symmetrical to the symmetry plane SP1. In this embodiment, the symmetry plane SP1 is substantially perpendicular to the first portion 1411c and the second portion 1412c. The features of the second quadrilateral 1422c are similar to those of the first quadrilateral 1421c, and thus the relevant description is omitted here.

[0041] Figure 11 is a schematic view of the elastic portion of the plurality of elastic elements of the backlight module of another embodiment of the present application pushing against the light source. Figure 12 is Figure 11 a perspective schematic view of the elastic element. The structure and advantages of the backlight module 100d of the present embodiment are similar to those of the embodiments of Figure 1 and Figure 6 . Only the differences will be described below. Please refer to Figure 11 and Figure 12 , the backlight module 100d of the present embodiment can adopt the elastic element 140 of Figure 3 and the elastic element 140b of Figure 7 . Specifically, the elastic element 140 and the elastic element 140b can be arranged alternately with each other, but the present application does not limit the arrangement manner of the elastic element 140 and the elastic element 140b.

[0042] In summary, the backlight module of the present application uses the elastic element to push against the light source, so that the light source can be tightly close to the light-incident surface of the light guide plate, or the distance between the light source and the light-incident surface is maintained at a fixed value. Based on the above structure, even if the volume of the light guide plate changes, the distance between the light source and the light-incident surface can still be fixed, so that the backlight module of the present application can provide stable optical quality.

[0043] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments as above, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed methods and technical contents to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not depart from the technical solution of the present application. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the scope of the technical solution of the present application.

Claims

1. A backlight module, characterized by, Comprising: a light guide plate having an incident light surface; a light source having a light emitting side and a back side opposite to each other, the light emitting side facing the incident light surface; a fixing element disposed opposite to the back side; and a resilient element connected to the fixing element, wherein the resilient element is adapted to push the light source against the incident light surface; wherein the resilient element is plate-shaped and has a seat portion and a resilient portion, the seat portion is fixed to the fixing element and opposite to the back side, the resilient portion is connected to the seat portion and bent opposite to the seat portion, the resilient portion is adapted to abut against the back side; wherein the resilient portion comprises a first trilateral shape having a first edge and a first corner opposite to each other, the first edge is connected to the seat portion, and the first corner is adapted to abut against the back side.

2. The backlight module of claim 1, wherein, The resilient portion further comprises a second trilateral shape: The first trilateral shape further has a second edge, and the second edge is adjacent between the first edge and the first corner; The second trilateral shape has a third edge, a fourth edge and a second corner, the third edge is opposite to the second corner, and the fourth edge is adjacent between the third edge and the second corner, the third edge is connected to the seat portion; The second edge is adjacent to the fourth edge, the first corner is adjacent to the second corner, and the first corner and the second corner adjacent to each other are adapted to abut against the back side.

3. The backlight module of claim 2, wherein, The resilient portion has a symmetry plane passing through the second edge and the fourth edge adjacent to each other, and the first trilateral shape and the second trilateral shape are symmetrical to the symmetry plane.

4. A backlight module characterized by comprising: Comprising: a light guide plate having an incident light surface; a light source having a light emitting side and a back side opposite to each other, the light emitting side facing the incident light surface; a fixing element disposed opposite to the back side; and a resilient element connected to the fixing element, wherein the resilient element is adapted to push the light source against the incident light surface; wherein the resilient element is plate-shaped and has a seat portion and a resilient portion, the seat portion is fixed to the fixing element and opposite to the back side, the resilient portion is connected to the seat portion and bent opposite to the seat portion, the resilient portion is adapted to abut against the back side; wherein the resilient portion comprises a first trilateral shape having a first edge and a first corner opposite to each other, the first edge is connected to the seat portion, and the first corner is adapted to abut against the back side.

5. The backlight module of claim 4, wherein, The resilient portion further comprises a second trilateral shape: The first trilateral shape further has a second edge, and the second edge is adjacent between the first edge and the first corner; The second trilateral shape has a third edge, a fourth edge and a second corner, the third edge is opposite to the second corner, and the fourth edge is adjacent between the third edge and the second corner, the third edge is connected to the seat portion; The second edge is adjacent to the fourth edge, the first corner is adjacent to the second corner, and the first corner and the second corner adjacent to each other are adapted to abut against the back side.

6. The backlight module of claim 1 or 4, wherein, The resilient portion has a symmetry plane passing through the second edge and the fourth edge adjacent to each other, and the first trilateral shape and the second trilateral shape are symmetrical to the symmetry plane. The resilient element further has a fixing portion, the light source comprises a substrate and a light emitting element, the light emitting element is disposed on the substrate, the light emitting side is located on a side of the light emitting element opposite to the substrate, and the back side is located on a side of the substrate opposite to the light emitting element, the fixing portion is connected to the seat portion and fixed to the substrate.

7. The backlight module of claim 6, wherein, The substrate has a surface and a side surface, the surface is opposite to the back side, the side surface is connected to the surface, the fixing part is plate-shaped and has a first section and a second section, the first section is connected to the second section and the seat part, and is opposite to the side surface, and the second section is fixed to the surface.

8. The backlight module of claim 6, wherein, The elastic part has a first fixed side and a first abutting side, the first fixed side is connected to the seat part, and the first abutting side is opposite to the first fixed side and is adapted to abut against the back side, the fixing part is plate-shaped and is connected to the first abutting side, and the fixing part is adapted to abut against the back side.

9. The backlight module of claim 8, wherein, The fixing part has a first plate body, a second plate body and a third plate body, the first plate body is connected to the first abutting side and is opposite to the third plate body, and the second plate body is connected to the first plate body and the third plate body, and the substrate is clamped between the first plate body and the third plate body.

Images