CN213276207U - Light source module and display device - Google Patents
Light source module and display device Download PDFInfo
- Publication number
- CN213276207U CN213276207U CN202022516699.0U CN202022516699U CN213276207U CN 213276207 U CN213276207 U CN 213276207U CN 202022516699 U CN202022516699 U CN 202022516699U CN 213276207 U CN213276207 U CN 213276207U
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- Prior art keywords
- light
- source module
- light source
- back plate
- adhesive layer
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- 239000012790 adhesive layer Substances 0.000 claims abstract description 47
- 239000003292 glue Substances 0.000 claims abstract description 10
- 239000012788 optical film Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 13
- 230000001070 adhesive effect Effects 0.000 claims description 13
- 239000010410 layer Substances 0.000 claims description 5
- 239000010408 film Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Abstract
The utility model provides a light source module, including backplate, light guide plate, light emitting component, reflector plate and first bonding glue film. The light guide plate is arranged on the back plate and is provided with a light incident surface, an opposite light emergent surface and a bottom surface. The light emitting element is arranged beside the light incident surface. The reflector plate is arranged between the back plate and the bottom surface, and one side of the reflector plate, which is far away from the light-emitting element, is provided with a groove. The groove has a plurality of recesses arranged at intervals, and the recesses are recessed toward the light emitting element. The first adhesive layer is arranged on the back plate and accommodated in the groove, the first adhesive layer is provided with a plurality of convex parts which are arranged at intervals, the convex parts respectively correspond to the plurality of concave parts of the groove, and the convex parts are connected with the back plate and the bottom surface. The utility model also provides a display device. The utility model discloses a light source module can promote the light-emitting degree of consistency, and uses this light source module's display device can promote the luminance degree of consistency of picture.
Description
Technical Field
The present invention relates to a light source module, and more particularly to a light source module for a display device and a display device using the same.
Background
Currently, liquid crystal display devices have been widely used in various electronic products as display components of electronic devices, and as electronic products are becoming thinner, the frames of electronic devices are becoming narrower and narrower. The light source module is an important component of the lcd device, and the frame of the light source module is necessarily narrower and narrower.
Meanwhile, pursuing better picture performance is also the design key point of the light source module. In the conventional light source module, when the light guide plate is attached to the back plate, a certain gap is formed between the adhesive and the reflective sheet disposed under the light guide plate for the convenience of assembly. However, the gap causes dark lines at the edges of the picture. On the other hand, when the whole section of adhesive is used to fix the edge of the light guide plate, the bright line phenomenon is easily caused by too much contact area.
In order to solve the above problem, the prior art has been to further attach a reflective sheet to the side surface of the light guide plate. However, after the light source module is thinned, it is difficult to attach the reflective sheet to the side surface of the light guide plate in actual operation.
The background section is provided to aid in understanding the present invention, and therefore the disclosure of the background section may include some prior art that does not constitute a part of the knowledge of one skilled in the art. Furthermore, the disclosure of the "background" does not represent a representation of the disclosure or the problems that may be solved by one or more embodiments of the present invention, or of what is known or appreciated by those of ordinary skill in the art prior to filing the present application.
SUMMERY OF THE UTILITY MODEL
The utility model provides a light source module can promote the light-emitting degree of consistency.
The utility model provides a display device, which can improve the brightness uniformity of pictures.
Other objects and advantages of the present invention can be obtained from the technical features disclosed in the present invention.
In order to achieve one or a part of or all of the above or other objects, an embodiment of the invention provides a light source module including a back plate, a light guide plate, a light emitting device, a reflective sheet and a first adhesive layer. The light guide plate is arranged on the back plate and is provided with a light incident surface, an opposite light emergent surface and a bottom surface. The light emitting element is arranged beside the light incident surface. The reflector plate is arranged between the back plate and the bottom surface, and one side of the reflector plate, which is far away from the light-emitting element, is provided with a groove. The groove is provided with a plurality of concave parts which are arranged at intervals and are concave towards the light-emitting element. The first adhesive layer is arranged on the back plate and accommodated in the groove, the first adhesive layer is provided with a plurality of convex parts which are arranged at intervals, the convex parts respectively correspond to the plurality of concave parts of the groove, and the convex parts are connected with the back plate and the bottom surface.
In order to achieve one or a part of or all of the above or other objects, an embodiment of the present invention provides a display device including a display panel and the light source module. The display panel is configured on the light emitting side of the light source module.
The utility model discloses among the light source module, one side that light emitting component was kept away from to the reflector plate has the recess to first bonding glue film holds in the recess, consequently compares in current light source module configuration, can reduce the clearance between reflector plate and the first bonding glue film, and then reduces dark line phenomenon. On the other hand, the first adhesive layer is provided with a plurality of protruding parts which are arranged at intervals, and the protruding parts are connected to the back plate and the bottom surface of the light guide plate. Therefore, the utility model discloses light source module can promote the light-emitting degree of consistency. The display device provided by the embodiment of the utility model can improve the brightness uniformity of the picture due to the use of the light source module.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic top view of a light source module according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view taken along line AA' of FIG. 1.
Fig. 3 is a schematic view of a reflective sheet and a first adhesive layer according to another embodiment of the present invention.
Fig. 4A and 4B are schematic views of a first adhesive layer according to other embodiments of the present invention.
Fig. 5 is a schematic cross-sectional view of a light source module according to another embodiment of the present invention.
Fig. 6 is a schematic cross-sectional view of a display device according to an embodiment of the invention.
List of reference numerals
1 display device
10. 10a light source module
20 display panel
100 back plate
110 side wall
200 light guide plate
210 incident surface
220 the light-emitting surface
230 bottom surface
231 diffusion microstructure
300 light emitting element
400. 400a reflector plate
401 side surface
410, a groove
410a opening a hole
411 concave part
420 an extension part
500. 500a first adhesive layer
501 first surface
502 second surface
510. 510a, 510b convex parts
520, a rubber block
600 optical film group
610. 620, 630 optical film
700 second adhesive layer
Cutting line AA
D is the direction
L is light
L1 area light source
T1, T2 thickness.
Detailed Description
The foregoing and other technical and scientific aspects, features and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.
Fig. 1 is a schematic top view of a light source module according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view taken along line AA' of FIG. 1. Referring to fig. 1 and 2, the light source module 10 of the present embodiment includes a back plate 100, a light guide plate 200, a light emitting device 300, a reflective sheet 400, and a first adhesive layer 500. The back plate 100 has, for example, a sidewall 110 away from the light emitting element 300. The light guide plate 200 is disposed on the back plate 100 and has a light incident surface 210, an opposite light emitting surface 220 and a bottom surface 230, wherein the bottom surface 230 faces the back plate 100. The light emitting element 300 is disposed beside the light incident surface 210 and adapted to emit light L into the light guide plate 200 through the light incident surface 210. The bottom surface 230 has a plurality of diffusion microstructures 231, for example, and the diffusion microstructures 231 may be dots or other microstructures capable of diffusing light. The reflective sheet 400 is disposed on the rear panel 100 and between the rear panel 100 and the bottom surface 230 of the light guide plate 200 to reflect the light L leaking from the lower side of the light guide plate 200 back into the light guide plate 200, thereby improving the light utilization efficiency. The first adhesive layer 500 is disposed on the back plate 100, and is connected to the back plate 100 and the bottom surface 230, for example, to fix the light guide plate 200. The first adhesive layer 500 is, for example, but not limited to, an overall unsegmented adhesive layer. In other embodiments, the configuration of the first adhesive layer 500 can be adjusted according to design requirements.
The side of the reflective sheet 400 away from the light emitting element 300 has a groove 410, as shown in fig. 1. The groove 410 has a plurality of concave portions 411 arranged at intervals, for example, in the present embodiment, the arrangement direction of the plurality of concave portions 411 is parallel to the light incident surface 220, and the concave portions 411 are concave toward the light emitting element 300. Specifically, the side of the reflective sheet 400 away from the light emitting element 300 has a side surface 401, the groove 410 is, for example, recessed from the side surface 401 toward the light emitting element 300, and the rear plate 100 is exposed to the groove 410. The first adhesive layer 500 is disposed on the exposed back plate 100 and accommodated in the groove 410. The first adhesive layer 500 has a plurality of protrusions 510 arranged at intervals, and the protrusions 510 correspond to the recesses 411 of the groove 410, respectively. In the present embodiment, the first adhesive layer 500 is, for example, but not limited to, connected to the back plate 100 and the bottom surface 230 through the protrusions 510. In other words, as shown in fig. 1 and 2, the light guide plate 200 covers the plurality of protrusions 510 of the first adhesive layer 500, for example.
The number of the corresponding plurality of concave portions 411 and the corresponding plurality of convex portions 510 in fig. 1 is shown by 6, but the present invention is not particularly limited to the number. In addition, in the embodiment, the protruding portions 510 are arranged at fixed intervals, for example, and the concave portions 411 are also arranged at fixed intervals corresponding to the protruding portions 510, but the invention is not limited thereto.
The side 401 of the reflective sheet 400 is, for example, the sidewall 110 adjacent to the side of the rear plate 100 away from the light emitting element 300. For example, a gap may be left between the side surface 401 and the sidewall 110 of the rear plate 100 on the side away from the light emitting element 300, or the side surface 401 may abut against the sidewall 110. The first adhesive layer 500 has a first surface 501 and a second surface 502 opposite to each other, in the embodiment, the first surface 501 and the second surface 502 are opposite side surfaces of the first adhesive layer 500 parallel to the sidewall 110, respectively, wherein the first surface 501 is far away from the light emitting device 300, and the second surface 502 is close to the light emitting device 300. The plurality of protrusions 510 are disposed on the second surface 502, that is, the plurality of protrusions 510 protrude toward the light emitting element 300. In the present embodiment, the first surface 501 is, for example, coplanar with the side surface 401 of the reflective sheet 400 (as shown in fig. 1), but is not limited thereto. Compared with the conventional light source module configuration, the configuration of the embodiment can reduce the gap between the reflective sheet 400 and the first adhesive layer 500, thereby reducing the dark line phenomenon.
The thickness T1 of the first adhesive glue layer 500 in the direction D perpendicular to the back sheet 100 is, for example, greater than the thickness T2 of the reflective sheet 400. Therefore, the bottom surface 230 of the light guide plate 200 can be prevented from contacting only the reflective sheet 400 without being connected to the first adhesive layer 500, thereby losing the fixing effect.
The light emitting device 300 is, for example, a strip lamp, but is not limited thereto. The light emitting element 300 may also be a light source assembly including a plurality of point light sources, such as Light Emitting Diodes (LEDs), and the present invention is not limited to the kind of the light emitting element 300.
The light source module 10 of the present embodiment further includes an optical film assembly 600 disposed on the light emitting surface 220. The optical film set 600 includes at least one optical film. At least one optical film of the optical film assembly 600 is, for example, but not limited to, a brightness enhancement film, a diffuser film, a prism sheet, or a composite prism sheet. The present invention is not limited to the number of at least one optical film, which may be one or more optical films, and in this embodiment, three optical films 610, 620, and 630 are taken as an example and are stacked on the light guide plate 200 according to the order. In addition, the optical films 610, 620, and 630 may be selected from different types according to different functions of the optical films.
In the light source module 10 of the present embodiment, the side 401 of the reflective sheet 400 away from the light emitting element 300 has the groove 410, and the first adhesive layer 500 is accommodated in the groove 410, so that compared with the conventional light source module configuration, the gap between the reflective sheet 400 and the first adhesive layer 500 can be reduced, thereby reducing the dark line phenomenon. On the other hand, the first adhesive layer 500 has a plurality of protrusions 510 arranged at intervals, and the protrusions 510 are connected to the back plate 100 and the bottom surface 230 of the light guide plate 200, so that the contact area between the first adhesive layer 500 and the light guide plate 200 is reduced, and the bright line phenomenon can be reduced. Therefore, the light source module 10 of the present embodiment can improve the uniformity of the emitted light.
Fig. 3 is a schematic view of a reflective sheet and a first adhesive layer according to another embodiment of the present invention. Referring to fig. 3, the first adhesive layer 500a of the present embodiment includes a plurality of adhesive blocks 520 respectively disposed in the grooves 410 of the reflective sheet 400, for example. Each of the rubber blocks 520 has at least one of the plurality of protrusions 510. Taking fig. 3 as an example, the first adhesive layer 500a includes two adhesive blocks 520, and each adhesive block 520 has three protrusions 510, but the present invention is not limited to the size and the number of the adhesive blocks 520. In the embodiment, a gap is formed between the two adhesive blocks 520 in the groove 410, however, since the first adhesive layer 500a is used to bond and fix the light guide plate by the protrusion 510, the gap does not affect the effect of the first adhesive layer 500 a. In another embodiment, for example, each of the rubber blocks 520 may have a single protrusion 510, that is, the number of the rubber blocks 520 is the same as that of the protrusions 510, and the rubber blocks 520 are arranged at intervals.
The shapes of the plurality of protrusions 510 of the first adhesive layers 500, 500a are, for example, the same as each other, but not limited thereto, and in another embodiment, the shapes of the plurality of protrusions 510 may be partially the same or different from each other. The shape of the protruding portion 510 is, for example, a rectangle, but is not limited thereto. Fig. 4A and 4B are schematic views of a first adhesive layer according to other embodiments of the present invention. Referring to fig. 1, fig. 4A and fig. 4B, the shape of the protrusion 510 includes, but is not limited to, a rectangle (as shown in fig. 1), an arc (as shown in fig. 4A) and a triangle (as shown in fig. 4B). The shape of the protrusion can be adjusted to any shape according to design requirements, and the shape of the recess 411 is adjusted corresponding to the protrusion 510, so as to reduce the gap between the reflective sheet 400 and the first adhesive layer 500.
Fig. 5 is a schematic cross-sectional view of a light source module according to another embodiment of the present invention. Referring to fig. 5, the light source module 10a of the present embodiment has similar structure and advantages to the light source module 10 described above, but the difference is that in the light source module 10a of the present embodiment, the reflective sheet 400a is further extended and disposed on the sidewall 110. Specifically, the reflective sheet 400a further has an extending portion 420, and the extending portion 420 extends upward (in a direction parallel to the sidewall 110) from a side of the reflective sheet 400a away from the light emitting element 300 and is disposed on the sidewall 110. Under this configuration, the light L leaking from the edge of the light guide plate 200 can be reflected back to the light guide plate 200 or to the optical film set 600, thereby reducing the phenomenon of light leakage at the edge and further improving the light utilization rate. On the other hand, in order to fix the extension portion 420 of the reflective sheet 400a disposed on the sidewall 110, the light source module further includes a second adhesive layer 700 disposed between the sidewall 110 and the reflective sheet 400a for adhering and connecting the sidewall 110 and the extension portion 420 of the reflective sheet 400 a. The material of the second adhesive glue layer 700 is, for example, the same as the material of the first adhesive glue layer 500, but is not limited thereto. In addition, the groove 410 of the reflective sheet 400 forms the shape of the opening 410a in the reflective sheet 400a of the present embodiment, and the first adhesive layer 500 is disposed in the opening 410a, but the advantages and effects achieved by the first adhesive layer are not affected.
Fig. 6 is a schematic cross-sectional view of a display device according to an embodiment of the invention. Referring to fig. 6, the display device 1 of the present embodiment includes the light source module 10 and the display panel 20. The display panel 20 is disposed on the light emitting side of the light source module 10. The display panel 20 may be a liquid crystal display panel or other non-self-emissive display panel. The light source module 10 is used for providing a surface light source L1 to the display panel 20 as a display light source. This light source module 10 may be replaced with the light source module of any of the above embodiments. Since the light source module 10 of the display device 20 of the present embodiment can improve the uniformity of the emitted light, the display device 1 using the light source module 10 can improve the brightness uniformity of the whole image.
To sum up, the utility model discloses among the light source module, one side that light emitting component was kept away from to the reflector plate has the recess to first bonding glue film holds in the recess, consequently compares in current light source module configuration, can reduce the clearance between reflector plate and the first bonding glue film, and then reduces dark line phenomenon. On the other hand, the first adhesive layer is provided with a plurality of protruding parts which are arranged at intervals, and the protruding parts are connected to the back plate and the bottom surface of the light guide plate. Therefore, the utility model discloses light source module can promote the light-emitting degree of consistency. When the reflector plate is extended and arranged on the side wall of the back plate, light leaked from the edge of the light guide plate can be reflected back to the light guide plate or reflected to the optical film group, so that the phenomenon of light leakage at the edge is reduced, and the light utilization rate is further improved. The display device provided by the embodiment of the utility model can improve the brightness uniformity of the picture due to the use of the light source module.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the specification of the present invention are still included in the scope covered by the present invention. Moreover, it is not necessary for any embodiment or claim of the invention to achieve all of the objects, advantages, or features disclosed herein. Furthermore, the abstract and the title of the specification are provided only for assisting the retrieval of patent documents and are not intended to limit the scope of the present invention. Furthermore, the terms "first," "second," and the like in the description and in the claims are used for naming elements (elements) or distinguishing between different embodiments or ranges, and are not intended to limit the upper or lower limit on the number of elements.
Claims (11)
1. The light source module is characterized by comprising a back plate, a light guide plate, a light emitting element, a reflecting sheet and a first adhesive layer, wherein:
the light guide plate is arranged on the back plate and is provided with a light incident surface, an opposite light emergent surface and a bottom surface;
the light-emitting element is arranged beside the light incident surface;
the reflector plate is arranged between the back plate and the bottom surface and is provided with one side far away from the light-emitting element, the side is provided with a groove, the groove is provided with a plurality of concave parts which are arranged at intervals, and the concave parts are concave towards the direction of the light-emitting element;
the first adhesive layer is disposed on the back plate and accommodated in the groove, the first adhesive layer has a plurality of protrusions arranged at intervals, the plurality of protrusions respectively correspond to the plurality of recesses of the groove, and the plurality of protrusions are connected to the back plate and the bottom surface.
2. The light source module of claim 1, wherein the back plate has a sidewall, and the reflective sheet is further disposed to extend from the sidewall.
3. The light source module of claim 2, further comprising a second adhesive layer disposed between the sidewall and the reflective sheet.
4. The light source module of claim 1, wherein the side of the reflective sheet away from the light emitting device has a side surface, the first adhesive layer has a first surface and a second surface opposite to each other, the plurality of protrusions are disposed on the second surface, and the first surface is coplanar with the side surface of the reflective sheet.
5. The light source module of claim 1, wherein the first adhesive layer comprises a plurality of adhesive blocks respectively disposed in the grooves, each of the plurality of adhesive blocks having at least one of the plurality of protrusions.
6. The light source module according to claim 1, wherein the plurality of convex portions have the same shape as each other.
7. The light source module of claim 1, wherein the plurality of protrusions have shapes including a rectangle, an arc, and a triangle, and the plurality of recesses have shapes corresponding to the plurality of protrusions.
8. The light source module of claim 1, wherein the thickness of the first adhesive glue layer in the direction perpendicular to the back plate is greater than the thickness of the reflective sheet.
9. The light source module of claim 1, wherein the plurality of protrusions are in a fixed spaced arrangement.
10. The light source module of claim 1, further comprising an optical film set disposed on the light emitting surface.
11. A display device, comprising a light source module and a display panel, wherein:
the light source module comprises a back plate, a light guide plate, a light emitting element, a reflecting sheet and a first bonding glue layer, wherein:
the light guide plate is arranged on the back plate and is provided with a light incident surface, an opposite light emergent surface and a bottom surface;
the light-emitting element is arranged beside the light incident surface;
the reflector plate is arranged between the back plate and the bottom surface and is provided with one side far away from the light-emitting element, the side is provided with a groove, the groove is provided with a plurality of concave parts which are arranged at intervals, and the concave parts are concave towards the direction of the light-emitting element; and
the first adhesive layer is configured on the back plate and accommodated in the groove, the first adhesive layer is provided with a plurality of convex parts which are arranged at intervals, the plurality of convex parts respectively correspond to the plurality of concave parts of the groove, and the plurality of convex parts are connected to the back plate and the bottom surface;
the display panel is configured on the light emitting side of the light source module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022516699.0U CN213276207U (en) | 2020-11-04 | 2020-11-04 | Light source module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022516699.0U CN213276207U (en) | 2020-11-04 | 2020-11-04 | Light source module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213276207U true CN213276207U (en) | 2021-05-25 |
Family
ID=75952220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022516699.0U Expired - Fee Related CN213276207U (en) | 2020-11-04 | 2020-11-04 | Light source module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213276207U (en) |
-
2020
- 2020-11-04 CN CN202022516699.0U patent/CN213276207U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210525 |
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| CF01 | Termination of patent right due to non-payment of annual fee |