TW201728981A - Light source module - Google Patents

Abstract

A light source module disposed at a side of a light entrancement surface of a light guide panel. The light source module includes a holder, a first circuit board, a second circuit board, a first light source, and a second light source. The holder includes a body and a bump, in which the bump extends along a major-axis direction of the holder and protrudes from the body toward the light entrancement surface of the light guide panel. The holder is divided as a first light-emitting zone and a second light-emitting zone by the bump. The first circuit board and the second circuit board are respectively disposed in the first light-emitting zone and the second light-emitting zone. The first light source is disposed on the first circuit board, and a first light-emitting surface of the first light source faces the light entrancement surface of the light guide panel. A minimum distance between the bump and the light entrancement surface of the light guide panel is less than a minimum distance between the first light source and the light entrancement surface of the light guide panel.

Description

Light source module

The invention relates to a light source module.

With the development of technology, the demand for display screens has increased. For example, the display screen can be found on a personal computer or a laptop. For the types of display screens, liquid crystal display panels using liquid crystal display technology have become one of the most common types on the market. In the structure of the liquid crystal display panel, the backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal itself does not emit light, the function of the backlight module is to supply sufficient light source with uniform brightness and distribution, so that the liquid crystal display panel can The image is displayed normally.

On the other hand, depending on the different application modes of the liquid crystal display panel, for example, a liquid crystal display panel for a vehicle, an industrial liquid crystal display panel, or a liquid crystal display panel for a Bo, the brightness demand thereof is also increasing. When the brightness requirement is higher, the number of light source modules in the backlight module also needs to be correspondingly increased. However, this will increase the cost and increase the time required for assembly.

An embodiment of the present invention provides a light source module, which is configured The first light source and the second light source are separated by a bump, and the first light source and the second light source are respectively disposed on the light guide plate. The first light emitting area and the second light emitting area are combined, so that the combination of the first light source and the second light source can be an array of light sources, thereby improving the brightness of the light provided by the light source module. On the other hand, the minimum distance between the bump and the light guide plate is smaller than the minimum distance between the first light source and the light guide plate, and the minimum distance between the second light source and the light guide plate prevents the first light source or the second light source from contacting the light guide plate, thereby Preventing the first light source or the second light source from causing damage to its components due to collision.

An embodiment of the present invention provides a light source module disposed on a light incident surface of a light guide plate. The light source module includes a lamp cover, a first circuit board, a second circuit board, a first light source and a second light source. The lamp cover comprises a body and a bump, wherein the bump extends from the body toward the light incident surface of the light guide plate along the long axis direction of the lamp cover, and the bump divides the lamp cover into the first light emitting region and the second light emitting region, wherein the bump The minimum distance from the light incident surface of the light guide plate is D. The first circuit board and the second circuit board are respectively disposed in the first light emitting area and the second light emitting area of the light cover. The first light source is disposed on the first circuit board, and the first light emitting surface of the first light source faces the light incident surface of the light guide plate, wherein a minimum distance between the first light source and the light incident surface of the light guide plate is d1, and D<d1. The second light source is disposed on the second circuit board, and the second light emitting surface of the second light source faces the light incident surface of the light guide plate, wherein a minimum distance between the second light source and the light incident surface of the light guide plate is d2, and D<d2.

In some embodiments, the first circuit board and the second circuit board are located on a surface of the body facing the light incident surface of the light guide plate, wherein the first light source and the second light source are forward light emitting diodes (top view light-emitting diode) ). The first light source is disposed on a surface of the first circuit board facing the light incident surface of the light guide plate, and second The light source is disposed on a surface of the second circuit board facing the light incident surface of the light guide plate.

In some embodiments, the bump has two opposite side surfaces, the side surface is perpendicular to the light incident surface of the light guide plate, and the first circuit board and the second circuit board are respectively located on the side surface, wherein the first light source and the second light source are The light source is a side view light-emitting diode. The first light source is disposed on a surface of the back side surface of the first circuit board, and the second light source is disposed on a surface of the back side surface of the second circuit board.

In some embodiments, the first circuit board and the second circuit board are disposed on a surface of the body facing the light incident surface of the light guide plate, and are respectively located on opposite sides of the bump.

In some embodiments, the light source module further includes a circuit board connection portion. The first circuit board and the second circuit board are respectively connected to opposite sides of the circuit board connecting portion, and the circuit board connecting portion covers the bump.

In some embodiments, the first circuit board, the second circuit board, and the circuit board connecting portion are integrally formed.

In some embodiments, the light source module further includes a protruding structure. The protruding structure is formed by bending a combination of the first circuit board, the second circuit board and the circuit board connecting portion, wherein the bump is located in the protruding structure.

In some embodiments, the first light-emitting region has a plurality of first light sources, wherein a portion of the first light source is a forward light-emitting diode and another portion of the first light source is a lateral light-emitting diode. The second light-emitting area has a plurality of second light sources, wherein some of the second light sources are forward light-emitting diodes, and the other part of the second light source is a lateral light-emitting diode.

In some embodiments, the lamp cover further includes a first sidewall and a second Side wall. The first side wall and the second side wall extend from the body toward the light incident surface of the light guide plate along the long axis direction of the lamp cover, wherein at least one gap exists between the first side wall and the bump, and between the second side wall and the bump There is at least another gap.

In some embodiments, the first circuit board covers at least the surface of the first sidewall facing the bump, and the second circuit board covers at least the surface of the second sidewall facing the bump. The first light source and the second light source are lateral light emitting diodes, the first light source is disposed on a surface of the first circuit board facing away from the first sidewall, and the second light source is disposed on the second circuit board facing away from the second sidewall On the surface.

100‧‧‧Backlight module

102, 202, 302, 402, 502, 602‧‧ ‧ light source module

104‧‧‧Light guide plate

106‧‧‧Into the glossy surface

108‧‧‧Glossy

110‧‧‧shade

112‧‧‧Ontology

114‧‧‧Bumps

115‧‧‧ side surface

116‧‧‧First side wall

117‧‧‧ second side wall

118‧‧‧ first edge

119‧‧‧ second edge

120‧‧‧First board

122‧‧‧Second circuit board

124‧‧‧Circuit board connection

126‧‧‧ protruding structure

128‧‧‧ fold line

130, 130a, 130b, 130c‧‧‧ first light source

131‧‧‧First luminous surface

132, 132a, 132b, 132c‧‧‧ second light source

133‧‧‧second luminous surface

A1‧‧‧first light-emitting area

A2‧‧‧second illuminating zone

D, d1, d2‧‧‧ distance

DL‧‧‧ long axis direction

DS‧‧‧Short axis direction

G‧‧‧ gap

FIG. 1A is a side view showing a backlight module formed by a light guide plate and a light source module according to the first embodiment of the present invention.

FIG. 1B is a front elevational view showing the light source module of FIG. 1A.

FIG. 2A is a side view showing a backlight module composed of a light guide plate and a light source module according to a second embodiment of the present invention.

FIG. 2B is a front elevational view showing the light source module of FIG. 2A.

FIG. 2C is a front elevational view showing the first circuit board, the second circuit board, and the circuit board connecting portion of FIG. 2A after being unfolded.

FIG. 3A is a side view showing a backlight module composed of a light guide plate and a light source module according to a third embodiment of the present invention.

FIG. 3B is a front elevational view showing the light source module of FIG. 3A.

FIG. 3C is a front elevational view showing the first circuit board, the second circuit board, and the circuit board connecting portion of FIG. 3A after being unfolded.

FIG. 4A is a side view showing a backlight module formed by a light guide plate and a light source module according to a fourth embodiment of the present invention.

FIG. 4B is a front elevational view showing the light source module of FIG. 4A.

FIG. 5A is a side view showing a backlight module formed by a light guide plate and a light source module according to a fifth embodiment of the present invention.

FIG. 5B is a front elevational view showing the light source module of FIG. 5A.

FIG. 6 is a side view showing a backlight module formed by a light guide plate and a light source module according to a sixth embodiment of the present invention.

The embodiments of the present invention are disclosed in the following drawings, and the details of However, it should be understood that these practical details are not intended to limit the invention. That is, in some embodiments of the invention, these practical details are not necessary. In addition, some of the conventional structures and elements are shown in the drawings in a simplified schematic manner in order to simplify the drawings.

The terms "first", "second", etc., as used herein, are not intended to refer to the order or the order, and are not intended to limit the invention, only to distinguish the elements described in the same technical terms. Or just operate.

In view of the fact that the brightness of the display panel is higher, the number of the light source modules in the backlight module also needs to be correspondingly increased. Therefore, the light source module of the present invention comprises a lamp cover, a first light source and a second light source, wherein the lamp cover can be used The first light source and the second light source are respectively disposed in the first light emitting area and the second light emitting area, so that the combination of the first light source and the second light source can be It becomes an array of light sources to enhance the brightness of the light source module, so that when there is a high brightness requirement, a single light source module can provide the set brightness requirement.

1A and 1B, FIG. 1A is a side view of the backlight module 100 formed by the light guide plate 104 and the light source module 102 of the first embodiment of the present invention, and FIG. 1B is a schematic view A front view of the light source module 102 of FIG. 1A. The backlight module 100 includes a light source module 102 and a light guide plate 104. The light guide plate 104 has a light incident surface 106 and a light exit surface 108, wherein the light incident surface 106 and the light exit surface 108 are adjacent to each other. The light source module 102 is disposed on the light incident surface 106 of the light guide plate 104 and is configured to provide light to the light guide plate 104. Specifically, the light source module 102 is disposed on one side of the light incident surface 106 of the light guide plate 104 and emits light toward the light guide plate 104, so that the light emitted from the light source module 102 can pass through the light incident surface 106 of the light guide plate 104. The light guide plate 104 is further separated from the light guide plate 104 through the light exit surface 108 of the light guide plate 104. In addition, since the light-incident surface 106 and the light-emitting surface 108 are adjacent to each other, the light source module 102 in this embodiment is a side-in type light source module relative to the light guide plate 104. Further, the light source module 102 is a pumpable light source module 102. In the configuration of the backlight module 100, the light source module 102 and the light guide plate 104 are two independent components. The backlight module 100 can further include a track (not shown), wherein the light source module 102 is placed in the track. When the light source module 102 of the backlight module 100 is damaged, the damaged light source module 102 can be extracted along the track, and the other light source module 102 can be placed along the track for replacement work.

The light source module 102 includes a lamp cover 110, a first circuit board 120, a second circuit board 122, a first light source 130 and a second light source 132. The lampshade 110 has a long axis direction DL and a short axis direction DS, wherein the long axis direction DL is parallel to the 1Bth image. In the vertical direction, the short-axis direction DS is parallel to the horizontal direction of FIG. 1B. In other words, the body 112 has a first edge 118 and a second edge 119 on each of the shorter sides, and the bump 114 extends from the first edge 118 to the second edge 119.

The lampshade 110 includes a body 112 and a bump 114. The body 112 and the bump 114 are integrally formed, and are formed by die casting or aluminum extrusion. The bump 114 extends from the body 112 toward the light incident surface 106 of the light guide plate 104 along the long axis direction DL of the globe 110. The bump 114 divides the lamp cover 110 into the first light-emitting area A1 and the second light-emitting area A2, that is, in the short-axis direction DS of the lamp cover 110, the opposite sides of the bump 114 are respectively divided into the first light-emitting area A1 and the first Two light-emitting areas A2.

The first circuit board 120 and the second circuit board 122 are respectively disposed in the first light-emitting area A1 and the second light-emitting area A2 of the lamp cover 110, and the first circuit board 120 and the second circuit board 122 are located on the body 112 facing the light guide plate 104. On the surface of the light incident surface 106. Further, the number of circuit boards of the light source module 102 of the present embodiment is two, which are respectively the first circuit board 120 and the second circuit board 122, and the first circuit board 120 and the second circuit board 122 are respectively located in the convex The opposite sides of block 114.

The first light source 130 is disposed on the first circuit board 120 , and the first light emitting surface 131 of the first light source 130 faces the light incident surface 106 of the light guide plate 104 . The second light source 132 is disposed on the second circuit board 122 , and the second light emitting surface 133 of the second light source 132 faces the light incident surface 106 of the light guide plate 104 . The light source module 102 can emit light to the light guide plate 104 through the first light source 130 and the second light source 132.

In addition, the first light source 130 and the second light source 132 depicted in FIG. 1B are symmetric with respect to the bump 114, that is, the bump 114 has the same vertical distance from each of the first light sources 130 or each of the second light sources 132. In other embodiments, the first light source 130 and the second light source 132 may also adopt an asymmetric configuration, that is, The vertical distance between the bumps 114 and each of the first light sources 130 or each of the second light sources 132 may be different. For example, the vertical distance between the bumps 114 and each of the first light sources 130 is smaller than the bumps 114 and each of the second light sources 132. The vertical distance.

In the present embodiment, the first light source 130 and the second light source 132 are top view light-emitting diodes. Further, the first light source 130 is disposed on the surface of the first circuit board 120, and the surface faces the light incident surface 106 of the light guide plate 104, and the connection interface between the first light source 130 and the first circuit board 120 is The first light emitting surfaces 131 of a light source 130 are opposed to each other. Similarly, the second light source 132 is disposed on the surface of the second circuit board 122, and the surface faces the light incident surface 106 of the light guide plate 104, and the connection interface between the second light source 132 and the second circuit board 122 is second. The second light emitting surfaces 133 of the light source 132 are opposed to each other.

The combination of the first source 130 and the second source 132 can be considered as a two-column array of light sources. Through the light source array, the brightness of the light source module 102 can be improved. In other words, when the backlight module 100 has a high brightness requirement, a single light source module 102 can provide the set brightness requirement.

In addition, the minimum distance between the bump 114 and the light incident surface 106 of the light guide plate 104 is the distance D, that is, the bump 114 has a surface facing the light guide plate 104, and the distance D is the surface and the guide of the bump 114. The minimum vertical distance between the light incident faces 106 of the light panel 104. The minimum distance between the first light source 130 and the light incident surface 106 of the light guide plate 104 is a distance d1, that is, the distance d1 is the minimum vertical distance between the first light emitting surface 131 of the first light source 130 and the light incident surface 106 of the light guide plate 104, and Distance D <distance d1. The minimum distance between the second light source 132 and the light incident surface 106 of the light guide plate 104 is a distance d2, that is, the distance d2 is the second light emitting surface 133 of the second light source 132 and the light guide. The minimum vertical distance of the light entrance surface 106 of the plate 104, and the distance D < distance d2.

With this configuration, when the light source module 102 is assembled to one side of the light incident surface 106 of the light guide plate 104, since the distance D < the distance d1 and the distance D < the distance d2, the first light source 130 or the second light source 132 can be avoided. It is in contact with the light incident surface 106 of the light guide plate 104, thereby preventing the first light source 130 or the second light source 132 from being damaged due to collision. On the other hand, in the case where the bumps 114 are provided, the spaces on both sides of the bumps 114 can provide a heat dissipation space as the first light source 130 and the second light source 132. The bumps 114 can increase the heat conduction path in the light source module 102 and simultaneously increase the heat dissipation area, so that the first light source 130 and the second light source 132 do not cause a decrease in optical efficiency due to overheating. That is to say, under the condition of the distance D<distance d1 and the distance D<distance d2, since the distance between the first light source 130 and the light guide plate 104 and the distance between the second light source 132 and the light guide plate 104 are increased, The overheating condition caused by the first light source 130 and the second light source 132 being too tightly arranged with the light guide plate 104 can be avoided.

In summary, the light source module of the present invention divides the lampshade into a first light-emitting area and a second light-emitting area by using a bump, wherein the first light source and the second light source are respectively disposed in the first light-emitting area and the second light-emitting area, so that The combination of a light source and a second source can be an array of light sources to enhance the brightness of the light source module. In addition, the first light source or the second source can be avoided by the minimum distance between the first light source and the light guide plate being greater than the minimum distance between the bump and the light guide plate and the minimum distance between the second light source and the light guide plate being greater than the minimum distance between the bump and the light guide plate. The light source is in contact with the light guide plate, thereby preventing the first light source or the second light source from being damaged due to collision. Moreover, through the above distance configuration, since the distance between the first light source and the light guide plate and the distance between the second light source and the light guide plate are increased, the first light source can be avoided. The overheating condition caused by the second light source being too tightly arranged with the light guide plate.

2A and 2B, wherein FIG. 2A is a side view of the backlight module 100 formed by the light guide plate 104 and the light source module 202 of the second embodiment of the present invention, and FIG. 2B A front view of the light source module 202 of FIG. 2A is shown. The difference between the embodiment and the first embodiment is that the light source module 202 of the present embodiment further includes a circuit board connecting portion 124, wherein the opposite sides of the circuit board connecting portion 124 are respectively connected to the first circuit board 120 and the second The circuit board 122 and the board connection portion 124 cover the bumps 114.

That is, in the present embodiment, the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 are integrally formed circuit boards, and the integrally formed circuit board covers the lamp cover 110 toward the light guide plate 104. The surface of the smooth surface 106. Since the number of circuit boards of the light source module 202 of the present embodiment is one, the number of components used can be reduced, thereby simplifying the assembly process.

In addition, in the light source module 202 of the present embodiment, the arrangement relationship of the distance D<distance d1 and the distance D<distance d2 is maintained, wherein the distance D is the minimum distance between the bump 114 and the light guide plate 104, and the distance d1 is the first light source. The minimum distance between the light source plate 104 and the light guide plate 104 is the minimum distance between the second light source 132 and the light guide plate 104. Therefore, the first light source 130 or the second light source 132 can still avoid contact with the light guide plate 104, thereby preventing damage to the components due to collision. On the other hand, the thickness of the board connecting portion 124 is not greater than the distance D to prevent the board connecting portion 124 from coming into contact with the light guide plate 104, thereby preventing damage due to collision.

2A and 2C, wherein FIG. 2C is a front elevational view showing the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 of FIG. 2A, and FIG. 2C Painted as the first circuit board 120, the second The schematic diagram of the circuit board 122 and the board connecting portion 124 before bending and assembling. The combination of the first circuit board 120, the second circuit board 122, and the circuit board connection portion 124 can be bent to form the protrusion structure 126, and wherein the bumps 114 are located within the protrusion structure 126. In particular, the protruding structure 126 can be formed by bending the circuit board at least twice. For example, in FIG. 2C, the protrusion structure 126 depicted in FIG. 2A can be formed by bending four fold lines 128 on the combination of the first circuit board 120, the second circuit board 122, and the board connection portion 124. On the other hand, the four fold lines 128 are located between the first light source 130 and the second light source 132.

Then, after seeing the second circuit board 120, the second circuit board 122, and the circuit board connecting portion 124, the first light source 130 and the second light source 132 are still located in the bumps. The opposite sides of 114, so the combination of the first source 130 and the second source 132 is still a two-column array of light sources. In other words, the brightness of the light provided by the light source module 202 is not affected by bending the first circuit board 120, the second circuit board 122, and the board connection portion 124.

Please refer to FIG. 3A and FIG. 3B , wherein FIG. 3A is a side view of the backlight module 100 formed by the light guide plate 104 and the light source module 302 of the third embodiment of the present invention, and FIG. 3B is a schematic view A front view of the light source module 302 of FIG. 3A. At least one difference between this embodiment and the second embodiment is that the bumps 114 have opposite side surfaces 115, wherein the side surfaces 115 are perpendicular to the light incident surface 106 of the light guide plate 104, that is, the extending direction of the side surfaces 115. The direction of extension of the light incident surface 106 of the light guide plate 104 is perpendicular to each other. The first circuit board 120 and the second circuit board 122 are respectively located on at least the side surface 115. Although the first circuit board 120 and the second circuit board 122 depicted in FIG. 3A are located on the surface of the body 112 and the side surface 115 of the bump 114, in other embodiments, the first circuit board 120 and the first circuit board 120 The two circuit boards 122 may be located only on the side surface 115 of the bumps 114.

On the other hand, in the present embodiment, the first light source 130 and the second light source 132 are side view light-emitting diodes. Further, the first light source 130 is disposed on the surface of the first circuit board 120, the surface faces away from the side surface 115, and the connection interface between the first light source 130 and the first circuit board 120 and the first light source 130 A light emitting surface 131 is adjacent to each other. Similarly, the second light source 132 is disposed on the surface of the second circuit board 122, and the surface faces away from the side surface 115, and the connection interface between the second light source 132 and the second circuit board 122 and the second light source 132 The two light emitting faces 133 are adjacent to each other.

In addition, in the light source module 302 of the present embodiment, the arrangement relationship of the distance D < the distance d1 and the distance D < the distance d2 is maintained, wherein the distance D is the minimum distance between the bump 114 and the light guide plate 104, and the distance d1 is the first light source. The minimum distance between the light source plate 104 and the light guide plate 104 is the minimum distance between the second light source 132 and the light guide plate 104. Therefore, the first light source 130 or the second light source 132 can still avoid contact with the light guide plate 104, thereby preventing damage to the components due to collision. The thickness of the board connection portion 124 is also maintained no greater than the distance D.

3A and 3C, wherein FIG. 3C is a front elevational view showing the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 of FIG. 3A, and FIG. 3C It is a schematic diagram of the first circuit board 120, the second circuit board 122 and the circuit board connecting portion 124 before being bent and assembled. In this embodiment, the first light source 130 is located between two of the four fold lines 128, and the second light source 132 is located between the other two of the four fold lines 128, and the first light emitting surface 131 of the first light source 130 and the first light source 130 The second light emitting surface of the two light sources 132 133 are facing each other before bending.

Next, please see the 3A and 3B, after the first circuit board 120, the second circuit board 122 and the circuit board connecting portion 124 are bent, the combination of the first light source 130 and the second light source 132 is still one. The light source arrays of the two rows of light, and the first light emitting surface 131 of the first light source 130 and the second light emitting surface 133 of the second light source 132 are all facing the light incident surface 106 of the light guide plate 104.

Please refer to FIG. 4A and FIG. 4B , wherein FIG. 4A is a side view of the backlight module 100 formed by the light guide plate 104 and the light source module 402 of the fourth embodiment of the present invention, and FIG. 4B is a schematic view A front view of the light source module 402 of FIG. 4A. At least one difference between the present embodiment and the second/third embodiment is that the first light-emitting area A1 of the present embodiment has a plurality of first light sources, and the second light-emitting area A2 has a plurality of second light sources.

Specifically, in the first embodiment, in the first light-emitting area A1, part of the first light source is a forward light-emitting diode, and another part of the first light source is a lateral light-emitting diode. For example, the first light source 130a is a forward light emitting diode, and the first light source 130b is a lateral light emitting diode. In the second light-emitting area A2, part of the second light source is a forward light-emitting diode, and the other part of the second light source is a lateral light-emitting diode. For example, the second light source 132a is a forward light emitting diode and the second light source 132b is a lateral light emitting diode. Therefore, the combination of the first light source and the second light source can be regarded as a four-column light source array. Through the light source array, the brightness of the light source module 402 can be further improved.

In addition, in the light source module of the present embodiment, the arrangement relationship of the distance D<distance d1 and the distance D<distance d2 is maintained, wherein the distance D is the minimum distance between the bump 114 and the light guide plate 104, and the distance d1 is the first light source 130a. Or the most in 130b The minimum distance from one of the light guide plates 104 to the light guide plate 104 is the minimum distance from the light guide plate 104 closest to one of the second light sources 132a or 132b. Therefore, the first light source or the second light source can still avoid contact with the light guide plate 104, thereby preventing the element from being damaged due to the collision. The thickness of the board connection portion 124 is also maintained no greater than the distance D.

In addition, the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 are still integrally formed circuit boards, and the first circuit board 120, the second circuit board 122, and the circuit board can be bent. The connecting portion 124 is then covered on the lamp cover 110, and details are not described herein.

Please refer to FIG. 5A and FIG. 5B , wherein FIG. 5A is a side view of the backlight module 100 formed by the light guide plate 104 and the light source module 502 according to the fifth embodiment of the present invention, and FIG. 5B is a schematic view A front view of the light source module 502 of FIG. 5A. The difference between the present embodiment and the fourth embodiment is that the lamp cover 110 of the present embodiment further includes a first sidewall 116 and a second sidewall 117, wherein the body 112, the bump 114, the first sidewall 116 and the second sidewall of the globe 110 The side wall 117 is integrally formed.

The first side wall 116 and the second side wall 117 extend from the body 112 toward the light incident surface 106 of the light guide plate 104 along the long axis direction DL of the lamp cover 110, wherein at least one gap exists between the first side wall 116 and the bump 114. There is at least another gap between the second sidewall 117 and the bump 114. For example, there is a gap G between the second sidewall 117 and the bump 114. That is, the lateral cross section of the globe 110 of the first to fourth embodiments is a chevron shape, and the lateral cross section of the globe 110 of the present embodiment is a mountain shape.

On the other hand, in this embodiment, the first circuit board 120 is at least Covering the surface of the first sidewall 116 facing the bump 114, the second circuit board 122 covers at least the surface of the second sidewall 117 facing the bump 114. Specifically, the circuit board formed by the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 covers the surface of the first side wall 116 facing the bump 114 and the second side wall 117 is convex. The surface of the block 114, the surface of the body 112 facing the light incident surface 106 of the light guide plate 104, the two side surfaces 115 of the bump 114, and the surface of the bump 114 facing the light incident surface 106 of the light guide plate 104.

In addition, the first light-emitting area A1 has a plurality of first light sources, and the second light-emitting area A2 has a plurality of second light sources. In the first light-emitting area A1, part of the first light source is a forward light-emitting diode, and another part of the first light source is a lateral light-emitting diode. For example, the first light source 130a disposed on the surface of the first circuit board 120 facing away from the body 112 is a forward light emitting diode, and the first light source disposed on the surface of the first circuit board 120 facing away from the surface of the bump 114 130b is a lateral light emitting diode, and the first light source 130c disposed on the surface of the first circuit board 120 facing away from the first sidewall 116 is a lateral light emitting diode. In the second light-emitting area A2, part of the second light source is a forward light-emitting diode, and another part of the second light source is a lateral light-emitting diode. For example, the second light source 132a disposed on the surface of the second circuit board 122 facing away from the body 112 is a forward light emitting diode disposed on the surface of the second circuit board 122 facing away from the surface of the bump 114. 132b is a lateral light emitting diode, and the second light source 132c disposed on the surface of the second circuit board 122 facing away from the second side wall 117 is a lateral light emitting diode. Therefore, the combination of the first light source 130 and the second light source 132 can be regarded as a six-column light source array. Through the light source array, the brightness of the light source module 502 can be further improved.

In addition, in the light source module of the embodiment, the distance D< a distance d1 and a distance D<distance d2, wherein the distance D is the minimum distance between the bump 114 and the light guide plate 104, and the distance d1 is the one of the first light source 130a, 130b or 130c closest to the light guide plate 104 and the light guide plate. The minimum distance of 104, the distance d2 is the minimum distance of one of the second light sources 132a, 132b or 132c closest to the light guide plate 104 and the light guide plate 104. Therefore, the first light source or the second light source can still avoid contact with the light guide plate 104, thereby preventing the element from being damaged due to the collision. The thickness of the board connection portion 124 is also maintained no greater than the distance D.

In addition, the first circuit board 120, the second circuit board 122, and the circuit board connecting portion 124 are still integrally formed circuit boards, and the first circuit board 120, the second circuit board 122, and the circuit board can be bent. The connecting portion 124 is then covered on the lamp cover 110, and details are not described herein.

Please refer to FIG. 6 , wherein FIG. 6 is a schematic side view of the backlight module 100 formed by the light guide plate 104 and the light source module 602 according to the sixth embodiment of the present invention. The difference between the present embodiment and the fifth embodiment is that the lamp cover 110 of the present embodiment has a larger size, and the first side wall 116 and the second side wall 117 of the lamp cover 110 extend from the body 112 toward the light guide plate 104, and respectively It extends to opposite sides of the light guide plate 104.

The first side wall 116 and the second side wall 117 extending to opposite sides of the light guide plate 104 prevent the light guide plate 104 from being displaced from the set position. In addition, the positions of the first side wall 116 and the second side wall 117 depicted in FIG. 6 are merely illustrative. In other embodiments, the first sidewall 116 and the second sidewall 117 may also extend from the body 112 toward the light guide plate 104 and extend to opposite sides of the light guide plate 104 and contact the opposite surfaces of the light guide plate 104 to The light guide plate 104 is sandwiched between the first sidewall 116 and the second sidewall 117. The other components of the light source module 602 can be configured The light source module 502 of the fifth embodiment is not described here.

In summary, the light source module of the present invention can divide the lampshade into a first light-emitting area and a second light-emitting area by using a bump, wherein the first light-emitting area and the second light-emitting area are respectively provided with a first light source and a second light source. The combination of the first light source and the second light source in the light source module can be an array of light sources, thereby improving the brightness of the light source module. On the other hand, the backlight module is disposed on one side of the light guide plate. The minimum distance between the bump and the light guide plate is smaller than the minimum distance between the first light source and the light guide plate, and the minimum distance between the second light source and the light guide plate is avoided. A light source or a second light source is in contact with the light guide plate, thereby preventing the first light source or the second light source from being damaged by the collision of the element. Furthermore, the light source module further includes a circuit board connecting portion connecting the first circuit board and the second circuit board, wherein the first circuit board, the second circuit board and the circuit board connecting portion are integrally formed circuit boards, so that the light source module The number of boards is one, which simplifies the assembly process by reducing the number of components used.

In addition, as described above, the light source module of the present invention may be a removable side-entry light source module, which has the visual size, specifications or other requirements of the general knowledge in the technical field of the present invention. The light source module of different embodiments is placed in the backlight module for replacement.

While the invention has been described above in terms of various embodiments, it is not intended to limit the invention, and the invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application attached.

100‧‧‧Backlight module

102‧‧‧Light source module

104‧‧‧Light guide plate

106‧‧‧Into the glossy surface

108‧‧‧Glossy

110‧‧‧shade

112‧‧‧Ontology

114‧‧‧Bumps

120‧‧‧First board

122‧‧‧Second circuit board

130‧‧‧First light source

131‧‧‧First luminous surface

132‧‧‧second light source

133‧‧‧second luminous surface

A1‧‧‧first light-emitting area

A2‧‧‧second illuminating zone

D, d1, d2‧‧‧ distance

Claims (10)

A light source module is disposed on a light incident surface of a light guide plate, and the light source module comprises: a light cover, comprising a body and a bump, wherein the bump is oriented by the body along a long axis direction of the light cover The light-incident surface of the light guide plate extends out, and the bump divides the light cover into a first light-emitting area and a second light-emitting area, wherein a minimum distance between the bump and the light-incident surface of the light guide plate is a first circuit board and a second circuit board are respectively disposed in the first light emitting area and the second light emitting area of the light cover; at least one first light source is disposed on the first circuit board, the first a first light emitting surface of the light source faces the light incident surface of the light guide plate, wherein a minimum distance between the first light source and the light incident surface of the light guide plate is d1, where D<d1; and at least one second light source, The second light-emitting surface of the second light source is disposed on the light-incident surface of the light-guide plate, wherein a minimum distance between the second light source and the light-incident surface of the light guide plate is d2, wherein D<d2. The light source module of claim 1, wherein the first circuit board and the second circuit board are located on a surface of the body facing the light incident surface of the light guide plate, wherein the first light source and the second light source are a first light source is disposed on a surface of the first circuit board facing the light incident surface of the light guide plate, and the second light source is disposed on the second light source (the top view light-emitting diode) The circuit board faces the surface of the light incident surface of the light guide plate. The light source module of claim 1, wherein the bump has two opposite side surfaces, the side surfaces are perpendicular to a light incident surface of the light guide plate, and the first circuit board and the second circuit board The first light source and the second light source are side view light-emitting diodes, and the first light source is disposed on the back side of the first circuit board. The surface of the side surface is disposed on a surface of the second circuit board facing away from the side surfaces. The light source module of claim 1, wherein the first circuit board and the second circuit board are disposed on a surface of the body facing the light incident surface of the light guide plate, and are respectively located at opposite sides of the bump On both sides. The light source module of claim 1, further comprising: a circuit board connecting portion, wherein the opposite sides of the circuit board connecting portion are respectively connected to the first circuit board and the second circuit board, and the circuit board is connected The portion covers the bump. The light source module of claim 5, wherein the first circuit board, the second circuit board and the circuit board connecting portion are integrally formed. The light source module of claim 6, further comprising a protruding structure formed by bending a combination of the first circuit board, the second circuit board and the circuit board connecting portion, wherein the protruding block Located within the raised structure. The light source module of claim 1, wherein the first light-emitting region has a plurality of the first light sources, and some of the first light sources are top view light-emitting diodes. The other part of the first light source is a side view light-emitting diode, wherein the second light emitting area has a plurality of the second light sources, and some of the second light sources are positive The light emitting diodes, and the other part of the second light sources are lateral light emitting diodes. The light source module of claim 1, wherein the lamp cover further comprises: a first side wall and a second side wall extending from the body toward the light incident surface of the light guide plate along a long axis direction of the lamp cover And wherein there is at least one gap between the first sidewall and the bump, and at least another gap exists between the second sidewall and the bump. The light source module of claim 9, wherein the first circuit board covers at least the first sidewall toward the surface of the bump, and the second circuit board covers at least the second sidewall toward the surface of the bump, and The first light source and the second light source are side view light-emitting diodes, and the first light source is disposed on a surface of the first circuit board facing away from the first sidewall, the second The light source is disposed on a surface of the second circuit board facing away from the second sidewall.