CN111610592A - Light source assembly and front light module - Google Patents
Light source assembly and front light module Download PDFInfo
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- CN111610592A CN111610592A CN202010260971.5A CN202010260971A CN111610592A CN 111610592 A CN111610592 A CN 111610592A CN 202010260971 A CN202010260971 A CN 202010260971A CN 111610592 A CN111610592 A CN 111610592A
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- light guide
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
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Abstract
The invention provides a light source assembly and a front light module, wherein the light source assembly comprises a light guide structure, an LED arranged on at least one surface of the light guide structure, and a second light guide structure arranged on the other surface of the light guide structure; a light guide structure comprising: the light guide plate is positioned in the light guide plate, and a plurality of light guide columns which are not connected with each other and are conducted are positioned in the light guide plate and comprise two ends which are respectively positioned on different surfaces of the light guide plate; the LED light is transmitted to the other side through at least one side of the light guide column and then transmitted to the second light guide structure; compared with the existing front light source structure, more tiny light sources conducted by the light guide structure are conducted to be used as light sources of the second light guide structure, and the second light guide structure diffuses each light path of the light guide structure again, so that the light source component can ensure the consistency of light emission by using fewer LEDs; furthermore, the invention also provides a front light module comprising the light source assembly, which can improve the brightness uniformity and reliability of the front light module.
Description
Technical Field
The invention relates to the application field of a front light module, in particular to a light guide structure, a light source assembly and a front light module.
Background
Front light modules are widely used in electronic readers, for example, a front light source is placed on a display module to illuminate characters on the display module; at present, as shown in fig. 1, the front light structure includes a Flexible circuit board 101(Flexible printed circuit, FPC for short) for providing a bonding wire for the light source; a double-sided tape 102 connecting the FPC101 and the light guide plate 104 together; an LED 103 providing a light source for the front light; a light guide plate 104 for uniformly spreading the light of the LED 103; according to the current market demand, the electronic reader needs to be charged for a long time, and when the front light source is used for the electronic reader, the minimum number of LEDs, such as 1-4 LEDs, are usually adopted to avoid frequent charging; as shown in fig. 2, when the area of the reader is small, fewer 1-4 left and right LEDs are used as light sources, and after light is diffused through the light guide plate, the light can be uniformly dispersed; however, when the area of the reader is large, the number of LEDs is small, and a significant dark area is formed even after light is diffused through the light guide plate.
Disclosure of Invention
The invention provides a light guide structure, a light source component and a front light module, which mainly solve the technical problems that: when a smaller number of LEDs are used, a significant dark area is also formed after light is diffused through the light guide plate, resulting in poor light emission consistency of the front light.
To solve the above technical problem, the present invention provides a light source assembly, including: the LED light guide structure comprises a light guide structure, an LED arranged on at least one surface of the light guide structure, and a second light guide structure arranged on the other surface of the light guide structure;
the light guide structure includes: the light guide plate is positioned in a plurality of light guide columns which are not connected with each other and are conducted, and each light guide column comprises two ends which are respectively positioned on different surfaces of the light guide plate; and the LED light is conducted to the second light guide structure after being conducted to the other surface through at least one surface of the light guide column.
Optionally, the LEDs are disposed on a side surface of at least one short side of the light guide structure, and the second light guide structure is disposed on a front surface of the long side of the light guide structure.
Optionally, the light source assembly further includes an upper reflector plate and a lower reflector plate located on the upper and lower surfaces of the light guide structure and the second light guide structure.
Optionally, the upper reflector plate and the lower reflector plate cover the light guide structure completely, and partially cover the second light guide structure.
Optionally, one end of the light guide column extends inwards from at least one side of the light guide plate and is bent, and then is connected with the other end of the front surface of the light guide plate, and the other ends of the light guide columns are uniformly distributed on the front surface.
Optionally, the surface of the light guide pillar is covered with a layer of high-reflection material.
Optionally, the cross section of the light guide structure includes an upper section formed by arranging a plurality of grooves and a lower section vertically symmetrical to the upper section, and the grooves of the upper section and the grooves of the lower section form the light guide column;
the lowest height between the upper section and the lower section is equal to the height of the groove and is equal to half of the thickness of the LED.
Optionally, the distance between the grooves on the side surface of the light guide plate is greater than 0.05mm and less than 0.1 mm.
Optionally, a blocking member for blocking connection of the grooves is arranged between the grooves.
The embodiment also provides a front light module, which includes the light source assembly.
Advantageous effects
The invention provides a light source component, which comprises a light guide structure, an LED arranged on at least one surface of the light guide structure, and a second light guide structure arranged on the other surface of the light guide structure; a light guide structure comprising: the light guide plate is positioned in the light guide plate, and a plurality of light guide columns which are not connected with each other and are conducted are positioned in the light guide plate and comprise two ends which are respectively positioned on different surfaces of the light guide plate; the LED light is transmitted to the other side through at least one side of the light guide column and then transmitted to the second light guide structure; the LED light source module comprises a plurality of light guide columns, a plurality of LED light sources and a plurality of LED light sources, wherein the plurality of light guide columns are arranged on the LED light sources; compared with the existing front light source structure, the light source component using the light guide structure conducts more tiny light sources conducted by the light guide structure as light sources of the second light guide structure, and the second light guide structure diffuses each light path of the light guide structure again, so that the light source component can ensure the consistency of light emission by using fewer LEDs; furthermore, the invention also provides a front light module comprising the light source assembly, which can improve the brightness uniformity and reliability of the front light module.
Drawings
FIG. 1 is a schematic diagram of a conventional front light;
FIG. 2 is a schematic view of a conventional front light;
fig. 3-1 is a schematic view of a light guide structure according to an embodiment of the present invention;
fig. 3-2 is a partially enlarged view of a light guide structure according to an embodiment of the invention;
fig. 4 is a schematic view of another light guide structure according to a first embodiment of the present invention;
fig. 5 is a schematic side view of a light guide structure according to an embodiment of the present invention;
fig. 6 is a schematic side view of another light guide structure according to the first embodiment of the present invention;
fig. 7 is a schematic side view of another light guide structure according to an embodiment of the present invention;
fig. 8 is a partially enlarged view of another light guide structure according to a first embodiment of the present invention;
fig. 9 is a schematic view of a light source module according to a second embodiment of the present invention;
FIG. 10 is a schematic view of another light source module according to the second embodiment of the present invention;
fig. 11 is a side view of a light source module according to a second embodiment of the present invention.
Detailed Description
In order that the contents of the present invention will be more readily understood, the present invention will now be described in further detail with reference to the accompanying drawings by way of specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
in the existing front light source structure, when the area of a reader is small, fewer 1-4 left and right LEDs are used as light sources, and light can be uniformly dispersed after being diffused by a light guide plate; however, when the area of the reader is large, the number of LEDs is small, and a significant dark area is formed even after light is diffused through the light guide plate. In order to solve the above problem, the present embodiment provides a light guiding structure, please refer to fig. 3-1, in which the light guiding structure 30 includes: a plurality of light guide plates 301, which are disposed in the light guide plates 301 and are not connected to each other, and are conductive to each other, wherein each light guide column 302 includes two ends respectively disposed on different surfaces, and one surface of light introduced from an LED (not shown in the figure) is transmitted to the other surface through the light guide column 302; in this embodiment, as shown in fig. 3-2, the light guide posts 302 are not connected to each other, the shape and size of the light guide posts 302 can be flexibly adjusted according to actual requirements, and preferably, the light guide posts 302 are the same.
The light guide column 302 in this embodiment disperses the light of fewer light sources arranged on the side of the light guide structure into more tiny light sources, and the tiny light sources are conducted to the front side through the path of the light guide column 302; for example, when the light guide plate 301 is rectangular, the side surface is the short side surface, and the front surface is the long side surface, so as to disperse the light of small area into large area.
Specifically, in the present embodiment, one end of the light guide pillar 302 extends and bends inward from the side surface of at least one short side of the light guide plate 301, and then is connected to the other end of the front surface of the long side of the light guide plate 301; as shown in fig. 3-1 and 3-2, that is, the light guiding columns 302 may be disposed simultaneously on two side surfaces of the light guiding plate 301, one end of the light guiding column 302 extends inward from the two side surfaces of the light guiding plate 301, and is connected to the other end of the front surface of the light guiding plate 301 after being bent by at least two pieces, wherein the light guiding columns 302 are not overlapped, and the bending angles of the light guiding columns 302 are the same to ensure that the light propagation angles are the same; the LED light paths on both sides follow the light guide pillar 302 to the front surface of the light guide plate 301. In this embodiment, preferably, the other end of the light guide pillar 302 is perpendicular to the front surface of the light guide plate 301, that is, the light is emitted vertically; of course, in some embodiments, there may be an oblique angle with the front surface of the light guide plate 301, that is, the light is emitted obliquely. Of course, the light guide bar 302 may also be a single side arrangement, extending inwardly from only one side of the light guide plate 301, such as when the light guide structure has LEDs disposed on only one side, the light guide bar 302 extends inwardly from one side.
In some embodiments, one end of the light guide bar 302 may also be bent inward from the long side of the light guide plate 301, and then connected to the other end of the other long side of the light guide plate 301, as shown in fig. 4, the light source on the left long side is diffused and conducted to the right long side through the light guide bar 302.
In some embodiments, the light guide pillar 302 in the light guide plate 301 may also be an arc shape, and two ends of the arc shape are respectively located at the side surface and the front surface. In some embodiments, the light guiding pillar 302 in the light guiding plate 301 may also be linear or wavy, and the two ends of the linear or wavy are respectively located at the side surface and the front surface; the shapes of the light guide bar 302 are just some of the shapes exemplified in the present embodiment, and it should be understood that the shapes of the light guide bar 302 are not limited to the examples.
It should be noted that, in order to ensure uniform light emitted from the front surface of the light guide plate 301, regardless of the shape of the light guide columns 302, the other ends of the light guide columns 302 are uniformly distributed on the front surface of the light guide plate 301, that is, the ends of the light guide columns 302 on the front surface of the light guide plate 301 are uniformly distributed and have the same spacing, as shown in fig. 3-1, the spacing may be determined according to the number of the light guide columns 302 and the length of the front surface of the light guide columns 302.
It should be noted that, in order to ensure that light does not overflow from the light guide bar 302 and is not absorbed by the light guide bar 302 during the transmission of light in the light guide bar 302, a layer of highly reflective material is covered on the surface of each light guide bar 302, and specifically, a layer of highly reflective material including at least one of Si, Al, Ti, Pt, Ag, Cr, Sn, such as silver, titania, silica, etc. having high reflectivity is covered on all the outer surfaces of the light guide bar through an electroplating or printing process.
In this embodiment, as shown in fig. 5, the cross section of the light guiding structure includes an upper section formed by arranging a plurality of grooves 303, and a lower section which is vertically symmetrical to the upper section, that is, the lower section is also formed by arranging a plurality of grooves 303, and the grooves 303 of the upper section are vertically aligned with and completely coincident with the grooves 303 of the lower section; the light guide bar 302 is formed by the grooves 303 of the upper and lower cross sections. It should be noted that the lowest height between the upper cross section and the lower cross section is equal to the height of the groove 303, wherein the height a corresponding to the lowest point between the upper cross section and the lower cross section is the thickness of the middle connection glue site of the light guide plate 301, and the height B of the groove 303 is the height from the lowest point of the groove 303 to the light guide plate 301.
In this embodiment, the height of the groove 303 is equal to half of the thickness of the LED, when the groove 303 is semicircular, the semicircular groove 303 with the upper cross section and the semicircular groove 303 with the lower cross section can be combined to form a whole circle, the diameter of the semicircular groove 303 is equal to the thickness of the LED, so that light emitted by the LED can be completely emitted into the whole circle formed by the groove 303, for example, when the LED is in the 4204 specification, the thickness of the LED is 0.4mm, the diameter of the semicircular groove 303 is 0.4mm, the height of the semicircular groove 303 is 0.2mm, the thickness of the middle connection glue site of the light guide plate 301 is 0.2mm, and the distance between the highest point of the upper cross section and the highest point of the lower cross. In some embodiments, the recess 303 is also square, trapezoidal, polygonal, etc., and as shown in fig. 6, the recess 303 is polygonal. It can be understood that, in order to ensure that the light guide plate 301 is uniformly distributed at the end of the front surface of the light guide plate 301, a distance D exists between the semicircular grooves 303 at the side surface of the light guide plate 301, and preferably, the distance D between the semicircular grooves 303 at the side surface of the light guide plate 301 is greater than 0.05 and less than 0.1 mm.
It can be understood that, in order to prevent the LED light from entering between the light guiding columns 302, as shown in fig. 7 and 8, a blocking member 304 for blocking the connection of the grooves 303 is disposed between the grooves 303 in this embodiment, the shape of the blocking member includes but is not limited to a sawtooth shape, a square concave shape, or a black silk-screen small square, etc., a sawtooth-shaped blocking member is disposed between the grooves 303 corresponding to the light guiding columns 302, and the light is blocked by the blocking member to enter between the light guiding columns, so as to ensure that the light completely passes through the light guiding columns 302; the length of the barrier is of course greater than 0.05 and less than 0.1 mm.
The embodiment provides a light guide structure, which comprises a light guide plate and a plurality of light guide columns arranged in the light guide plate, wherein the light guide columns comprise two ends respectively arranged on the side surface of the light guide plate and the front surface of the light guide plate, and the side surface light LED in from an LED is transmitted to the front surface through the light guide columns; through a plurality of leaded light post that sets up, disperse into more tiny light sources with the less light source of side, conduct to openly, wherein the frontal area is greater than the side area, through the separation piece between high reflective material and the leaded light post before guaranteeing that light does not get into the leaded light post, and can not spill over, for current light guide plate, the leaded light effect diffuses more.
Example two
This embodiment provides a light source subassembly, as shown in fig. 9, including light guide structure 30 in embodiment one, no longer describe here one by one, the light source subassembly is still including setting up in the LED 901 of at least one face of light guide structure 30, set up in the second light guide structure 902 of light guide structure 30 another face, the light that LED 901 sent becomes more tiny light sources through light guide structure 30 dispersion promptly, diffuse conduction to light guide structure 30 another face, then second light guide structure 902 diffuses each way light source of light guide structure 30 once more, promote the homogeneity and the uniformity of light source.
In this embodiment, the LED 901 is disposed on at least one short side of the light guide structure 30, and the second light guide structure 30 is disposed on the long side of the light guide structure 30; the surface of the short side is a side surface, the surface of the long side is a front surface, that is, the side surface 901 emits light, the light guide structure 30 disperses the light of fewer light sources arranged on the side surface into more fine light sources, the front surface of the light guide structure 30 is conducted, the more small light sources conducted from the front surface are used as light incident light sources of the second light guide structure 902, and the second light guide structure 902 is a light guide plate.
Specifically, the light guide structure 30 is parallel to the second light guide structure 902, and the area of the second light guide structure 902 is larger than that of the light guide structure 30, so that the second light guide structure 902 increases the degree of diffusing each light source, preferably, the area of the light emitting surface of the light guide structure 30 is equal to that of the light incident surface of the second light guide structure 902, or the area of the light incident surface of the second light guide structure 30 is slightly larger than that of the light emitting surface of the light guide structure 30, so that the second light guide structure 902 can completely diffuse the light emitted by the light guide structure 30.
It can be understood that the distribution and number of LEDs of the light source assembly can be flexibly adjusted according to actual requirements, for example, as shown in fig. 9, when the area of the light source assembly is large, two side surfaces of the light guide structure 30 both include one LED 901, and at this time, two side surfaces of the light guide structure 30 both include the light guide columns 302; as shown in fig. 10, when the light source module has a small area and the optics can be controlled, the light guide structure can be provided with one LED on a single side.
It should be noted that, as shown in fig. 11, the light source module further includes an upper reflector 903 and a lower reflector 904 on the upper and lower surfaces of the light guide structure 30 and the second light guide structure 902, where the upper reflector 903 and the lower reflector 904 are adhered to the light guide structure 30 and the second light guide structure 902 by a double-sided Adhesive (e.g., OCA optical Adhesive); in this embodiment, the light guide structure 30 and the second light guide structure 902 are both transparent structures, and optionally, the second light guide structure 902 is an existing light guide plate, and a reflective sheet is attached to the upper and lower surfaces of the second light guide structure 902, so that more light rays can enter the second light guide structure 902; optionally, the upper reflector 903 and the lower reflector 904 have the same shape and size, and the upper reflector 903 and the lower reflector 904 completely cover the light guide structure 30 and partially cover the second light guide structure 902; of course, in some embodiments, the upper and lower reflective sheets 903, 904 completely cover the light guide structure 30 and do not cover the second light guide structure 902.
The light source assembly provided by the embodiment comprises a light guide structure comprising a light guide column, an LED arranged on at least one side surface of the light guide structure, and a light guide plate arranged on the front surface of the light guide structure; compared with the existing front light source structure, more tiny light sources conducted from the front side of the light guide structure are conducted to be used as light sources of the light guide plate, and the light guide plate diffuses each light path of the light guide structure again, so that the light source component can also ensure the consistency of light emission by using fewer LEDs; meanwhile, the arrangement number and the arrangement positions of the LEDs can be flexibly adjusted according to the actual reading area requirement, so that the product diversity is ensured.
EXAMPLE III
In this embodiment, a front light module is provided, which includes the light source module according to the second embodiment, and for convenience of understanding, the present embodiment takes a relatively existing light source module as an example for description.
In this embodiment, as shown in fig. 9 and 11, the light source assembly includes a light guide structure 30, LEDs 901 disposed on two side surfaces of the light guide structure 30; a second light guide structure 902 juxtaposed with the light guide structure 30 and disposed on the front side of the light guide structure 30, further comprising a solder circuit FPC for providing a light source; as shown in fig. 7 and 8, the light guide structure 30 includes a light guide plate 301 and a light guide column 302 disposed in the light guide plate 301, wherein the light guide column 302 includes two ends respectively located on a side surface where a short side of the light guide plate 301 is located and a front surface where a long side of the light guide plate 301 is located; that is, in this embodiment, the front surface of the light guide plate 301 is the front surface of the light guide structure 30, the side surface of the light guide plate 301 is the side surface of the light guide structure 30, and the area of the side surface of the light guide plate 301 is smaller than that of the front surface of the light guide plate 301, and further, the light source assembly includes two LEDs 901 disposed on the left and right side surfaces of the light guide structure 30, and the light from the fewer light sources disposed on the side surfaces is dispersed into more fine light sources by the light guide column 302 disposed on the light guide structure 30 and is conducted to the front surface of the light guide structure 30, and the more fine light sources conducted from the front surface are used as light incident; in this embodiment, the area of the light incident surface of the second light guiding structure 902 is slightly larger than the light emitting surface of the light guiding structure 902, so that the second light guiding structure 902 can completely diffuse the light emitted from the light guiding structure 30; wherein second light guide structure 902 is current light guide plate, therefore, the light source subassembly in this embodiment, for current front-light source structure, the luminous uniformity is better for two LED 901 realization, and has avoided forming the dark space.
The light source assembly in this embodiment further includes an upper reflector 903 and a lower reflector 904 on the upper and lower surfaces of the light guide structure 30 and the second light guide structure 902; because two light guide structure are transparent structure, need pass through OCA and paste the reflector plate in the upper and lower surface to the guarantee can have more light to get into second light guide structure 902. The upper reflector 903 and the lower reflector 904 have the same shape and size, and the upper reflector 903 and the lower reflector 904 cover the light guide structure 30 completely and partially cover the second light guide structure 902.
Here, the light guide structure 30 is described, the light guide structure 30 in this embodiment includes a light guide plate 301, a plurality of light guide plates 301 are located, the light guide posts 302 are not connected to each other, and are turned on, one end of each light guide post 302 extends inwards from the side surface of the light guide structure 30 and is connected to the other end located on the front surface of the light guide structure 30, the bending angle of each light guide post 302 is the same, and both ends are perpendicular to the light guide structure 30, wherein the end portions of the light guide posts 302 on the front surface of the light guide plate 301 are uniformly distributed, and the distance is the same, so as to ensure that the light emitted from the front surface of the light.
In this embodiment, the surface of the light guide bar 302 is plated with highly reflective silver to ensure that light does not overflow from the light guide bar 302 and is not absorbed by the light guide bar 302.
In this embodiment, as shown in fig. 7, the cross section of the light guiding structure 30 includes an upper section formed by arranging a plurality of grooves 303, and a lower section also formed by arranging a plurality of grooves 303, and the grooves 303 of the upper section are aligned with and completely coincident with the grooves 303 of the lower section; the light guide column 302 is formed by the grooves 303 of the upper section and the lower section, the specific groove 303 is a polygon, the groove 303 of the upper section and the groove 303 of the lower section can be combined to form a whole circle, the LED 901 adopts the 4204 specification, the thickness of the LED 901 is 0.4mm, the diameter of the groove 303 is 0.4mm, the height of the groove 303 is 0.2mm, the thickness of a middle connecting glue position of the light guide plate 301 is 0.2mm, and the distance between the grooves 303 on the side surface of the light guide plate 301 is 0.08 mm; meanwhile, a blocking member 304 of a concave structure for blocking connection of the grooves 303 is arranged between the grooves 303 corresponding to the cross section of the light guide column 302, so that light of the LED 901 is prevented from entering between the light guide columns 302, and the length of the blocking member 304 is 0.08 mm.
The embodiment provides a specific front light module, which comprises a light source assembly, a light guide structure, an LED and a light guide plate, wherein the light source assembly comprises a light guide column; compared with the existing front light source structure, more tiny light sources which are transmitted out of the front surface of the light guide structure are conducted to serve as light incident sources of the light guide plate, and the light guide plate diffuses each light path of the light guide structure again, so that the light source component can also ensure the consistency of light emission by using fewer LEDs.
It should be understood that the light guide structure provided by this embodiment can be applied to various light emitting fields, for example, it can be manufactured into a front light module applied to a display front light field (which can be a front light module of a terminal such as a television, a display, a mobile phone, etc.). The above applications are only a few exemplified by the present embodiment, and it should be understood that the application of the light guiding structure is not limited to the above exemplified fields.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The light source component is characterized by comprising a light guide structure, an LED arranged on at least one surface of the light guide structure, and a second light guide structure arranged on the other surface of the light guide structure;
the light guide structure includes: the light guide plate is positioned in a plurality of light guide columns which are not connected with each other and are conducted, and each light guide column comprises two ends which are respectively positioned on different surfaces of the light guide plate; and the LED light is conducted to the second light guide structure after being conducted to the other surface through at least one surface of the light guide column.
2. The light source module as claimed in claim 1, wherein the LED is disposed on a side surface of at least one short side of the light guide structure, and the second light guide structure is disposed on a front surface of a long side of the light guide structure.
3. The light source assembly of claim 1, further comprising upper and lower reflectors positioned on upper and lower surfaces of the light guide structure and the second light guide structure.
4. The light source assembly of claim 3, wherein the upper and lower reflectors completely cover the light guide structure and partially cover the second light guide structure.
5. The light source module as claimed in claim 2, wherein one end of the light guiding pillar extends and bends inward from at least one of the side surfaces of the light guiding plate, and is connected to the other end of the front surface of the light guiding plate, and the other ends of the light guiding pillars are uniformly distributed on the front surface.
6. The light source module as recited in claim 5, wherein the surface of the light guide post is covered with a layer of highly reflective material.
7. The light source assembly according to any one of claims 1 to 6, wherein the cross section of the light guide structure includes an upper section formed by arranging a plurality of grooves, and a lower section which is vertically symmetrical to the upper section, and the grooves of the upper section and the grooves of the lower section form the light guide column;
the lowest height between the upper section and the lower section is equal to the height of the groove and is equal to half of the thickness of the LED.
8. The light source module as recited in claim 7, wherein a distance between the grooves on the side of the light guide plate is greater than 0.05mm and less than 0.1 mm.
9. The light source module according to claim 7, wherein a blocking member for blocking connection of the grooves is provided between the grooves.
10. A front light module, comprising a light source module as claimed in any one of claims 1-9.
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| CN202010260971.5A CN111610592A (en) | 2020-04-03 | 2020-04-03 | Light source assembly and front light module |
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| CN200941119Y (en) * | 2006-08-18 | 2007-08-29 | 艾默生网络能源有限公司 | Light guiding structure |
| CN101349406A (en) * | 2008-09-10 | 2009-01-21 | 友达光电股份有限公司 | Backlight module |
| CN101832517A (en) * | 2009-03-13 | 2010-09-15 | 鸿富锦精密工业（深圳）有限公司 | Back light module |
| JP2013080583A (en) * | 2011-10-03 | 2013-05-02 | Mitsubishi Electric Corp | Plane light source device and display device having the same |
| CN104033845A (en) * | 2014-06-18 | 2014-09-10 | 立达信绿色照明股份有限公司 | Light guide column and lamp |
| CN107102397A (en) * | 2017-05-19 | 2017-08-29 | 武汉华星光电技术有限公司 | Edge-type light guide plate and backlight module |
| CN212623172U (en) * | 2020-04-03 | 2021-02-26 | 深圳市德仓科技有限公司 | Light guide structure, light source assembly and front light module |
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