CN214409514U - Backlight module - Google Patents
Backlight module Download PDFInfo
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- CN214409514U CN214409514U CN202023315265.0U CN202023315265U CN214409514U CN 214409514 U CN214409514 U CN 214409514U CN 202023315265 U CN202023315265 U CN 202023315265U CN 214409514 U CN214409514 U CN 214409514U
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- light guide
- guide plate
- frame
- backlight module
- positioning
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Abstract
The utility model relates to a backlight module, the light guide plate is installed when gluing the frame, because the light guide plate reaches and glues corresponding constant head tank and the locating piece that is provided with on the frame, and the width of two locating pieces is different, each constant head tank respectively with a locating piece looks adaptation, during the installation, only with the constant head tank gomphosis of locating piece and adaptation, the light guide plate can be installed on gluing the frame, when the light guide plate installation is wrong, the locating piece is unmatched with the constant head tank, make the light guide plate can not install on gluing the frame, avoided the light guide plate to pack into to gluing the frame with wrong direction, thereby make the light guide plate can correctly install on gluing the frame, thereby reach the display effect of ideal.
Description
Technical Field
The utility model relates to a liquid crystal backlight technical field, in particular to backlight module.
Background
At present, the LED backlight source technology is widely used for the illumination of instruments in automobiles because of long service life and low power consumption, common backlight modules are flexible circuit boards of LEDs which are fixedly welded on the single face or the double faces of a light guide plate, and when light beams emitted by the LEDs pass through sawtooth reticulate patterns and cylindrical lattice points on the light guide plate, the light beams can be uniformly distributed on the light guide plate, so that the illumination of automobile instrument panels is realized.
In order to strengthen corresponding leaded light effect, can laminate leaded light subassemblies such as membrane of loosing light and brightness enhancement piece in the one side of light guide plate, the shape of current gluey frame and light guide plate is mostly the symmetry setting, and when the light guide plate was installed on gluey frame, the light guide plate was adorned anti-easily for leaded light subassembly's position changes, leads to backlight unit to be difficult to reach the display effect of ideal.
SUMMERY OF THE UTILITY MODEL
Accordingly, there is a need for a backlight module.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a backlight module includes: a rubber frame and a light guide plate;
the light guide plate and the rubber frame are arranged as follows:
the light guide plate is provided with two positioning grooves, and the rubber frame is provided with two positioning blocks;
or the like, or, alternatively,
the rubber frame is provided with two positioning grooves, and the light guide plate is provided with two positioning blocks;
or the like, or, alternatively,
the light guide plate is provided with a positioning groove and a positioning block, and the rubber frame is provided with another positioning groove and another positioning block;
the width of the two positioning blocks is different, each positioning groove is respectively matched with one positioning block, each positioning block is embedded with one positioning groove, and the light guide plate is installed on the rubber frame.
In one embodiment, a bottom plate is arranged in the rubber frame, and the first surface of the light guide plate faces the bottom plate.
In one embodiment, a grid plate is disposed on the bottom plate.
In one embodiment, the bottom plate is integrally provided with the rubber frame.
In one embodiment, the grid plate is integral with the base plate.
In one embodiment, the rubber frame is provided with a butt joint block, and the butt joint block is in butt joint with the first surface of the light guide plate.
In one embodiment, the light guide plate is provided with a plurality of clamping blocks, the rubber frame is provided with a plurality of clamping grooves, and each clamping block is clamped on one clamping groove.
In one embodiment, further comprising: and the shape of the diffusion film is matched with that of the light guide plate, and the diffusion film is arranged on the second surface of the light guide plate.
In one embodiment, the diffusion film is provided with a shading glue, and the shading glue is adhered to the joint of the diffusion film and the glue frame.
A light emitting display device comprising the backlight module described in any of the above embodiments.
The utility model has the advantages that: the utility model provides a pair of backlight module, the light guide plate is installed when gluing on the frame, because the light guide plate reaches it is provided with constant head tank and locating piece, and two to glue correspondingly on the frame the width of locating piece is different, each the constant head tank respectively with one locating piece looks adaptation, during the installation, only will locating piece and adaptation the constant head tank gomphosis, the light guide plate can be installed glue on the frame, work as when the light guide plate installation is wrong, the locating piece with the constant head tank is unmatched, makes the light guide plate can not install glue on the frame, has avoided the light guide plate is packed into with wrong direction extremely glue the frame, thereby make the light guide plate can correctly install glue on the frame to reach the display effect of ideal.
Drawings
FIG. 1 is a schematic structural diagram of a backlight module according to an embodiment;
FIG. 2 is a schematic structural diagram of a light guide plate according to an embodiment;
fig. 3 is a schematic structural diagram of a backlight module according to another embodiment.
In the drawings, 10, a backlight module; 100. a rubber frame; 110. a first positioning block; 120. a second positioning block; 200. a light guide plate; 210. a first positioning groove; 220. a second positioning groove; 300. a diffusion membrane; 400. and (5) shading glue.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.
It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.
In one embodiment, a backlight module includes: a rubber frame and a light guide plate;
the light guide plate and the rubber frame are arranged as follows:
the light guide plate is provided with two positioning grooves, and the rubber frame is provided with two positioning blocks;
or the rubber frame is provided with two positioning grooves, and the light guide plate is provided with two positioning blocks;
or, a positioning groove and a positioning block are arranged on the light guide plate, and another positioning groove and another positioning block are arranged on the rubber frame;
the width of the two positioning blocks is different, each positioning groove is respectively matched with one positioning block, each positioning block is embedded with one positioning groove, and the light guide plate is installed on the rubber frame.
In one embodiment, the backlight module is an instrument backlight source with a perfect circle viewing area, the side of the light guide plate includes an arc-shaped side and a straight side, the rubber frame is adapted to the shape of the light guide plate, the two positioning blocks are respectively a first positioning block and a second positioning block, the two positioning grooves are respectively a first positioning groove and a second positioning groove, the shape of the first positioning groove is adapted to the shape of the first positioning block, the shape of the second positioning groove is adapted to the shape of the second positioning block, and the width of the first positioning block is different from the width of the second positioning block; the first positioning block is embedded with the first positioning groove, the second positioning block is embedded with the second positioning groove, and the light guide plate is installed on the rubber frame.
As shown in fig. 1 and 2, in an embodiment, a first positioning groove 210 and a second positioning groove 220 are formed on a straight side edge of the light guide plate 200, the first positioning groove 210 and the second positioning groove 220 are respectively formed on two sides of the straight side edge of the light guide plate 200, a first positioning block 110 and a second positioning block 120 are disposed on the plastic frame 100, a position of the first positioning block 110 corresponds to a position of the first positioning groove 210, a position of the second positioning block 120 corresponds to a position of the second positioning groove 220, when the light guide plate 200 is reversely mounted, because a width of the first positioning block 110 is different from a width of the second positioning groove 220, the first positioning block 110 cannot be embedded in the second positioning groove 220, so that the light guide plate 200 cannot be mounted on the plastic frame 100, thereby playing a role of prompting, and preventing the light guide plate 200 from being mounted to the plastic frame 200 in an incorrect direction, so that an operator can correctly install the light guide plate 200.
In one embodiment, the straight side edge of the light guide plate is provided with a first positioning block and a second positioning block, the first positioning block and the second positioning block are respectively arranged at two sides of the straight side edge of the light guide plate, the rubber frame is provided with a first positioning groove and a second positioning groove, the position of the first positioning block corresponds to the position of the first positioning groove, the position of the second positioning block corresponds to the position of the second positioning groove, when the light guide plate is reversely installed, because the width of the first positioning block is different from that of the second positioning groove, the first positioning block can not be embedded in the second positioning groove, so that the light guide plate can not be arranged on the rubber frame, therefore, the light guide plate can play a role in prompting, the light guide plate is prevented from being arranged in the rubber frame in a wrong direction, and an operator can correctly install the light guide plate.
In one embodiment, a first positioning block and a second positioning groove may be disposed on the straight side edge of the light guide plate, and correspondingly, a second positioning block and the first positioning groove are disposed on the rubber frame. In this embodiment, a second positioning block and a first positioning groove may be disposed on the straight side edge of the light guide plate, and accordingly, the rubber frame is provided with a first positioning block and a second positioning groove, the first positioning block corresponds to the first positioning groove in position, and the second positioning block corresponds to the second positioning groove in position.
In an exemplary embodiment, in the backlight module 10 according to the present invention, when the light guide plate 200 is mounted on the plastic frame 100, since the light guide plate 200 and the plastic frame are respectively provided with the first positioning groove 210, the second positioning groove 220, the first positioning block 110 and the second positioning block 120, and the widths of the first positioning block 110 and the second positioning block 120 are different, only the first positioning block 110 is embedded into the first positioning groove 210 and the second positioning block 120 is embedded into the second positioning groove 220 during mounting, the light guide plate 200 can be mounted on the plastic frame 100, when the light guide plate 200 is incorrectly mounted, the first positioning block 110 is not matched with the second positioning groove 220, and the second positioning block 120 is not matched with the first positioning groove 210, so that the light guide plate 200 cannot be mounted on the plastic frame 100, thereby preventing the light guide plate from being mounted to the plastic frame in a wrong direction, therefore, the light guide plate 200 can be correctly mounted on the rubber frame 100, and an ideal display effect can be achieved.
In order to further enhance the light guiding performance of the backlight module 10, in one embodiment, a bottom plate is disposed in the plastic frame 100, and the first surface of the light guide plate 200 faces the bottom plate. Specifically, the bottom plate can reflect light, light guide plate 200 with the bottom plate sets gradually glue on the frame 100, like this, the cooperation the reflection of bottom plate light makes the process light that light guide plate 200 propagated can be better toward single direction propagation, backlight unit 10 can reach more ideal display effect.
Further, the bottom plate and the rubber frame 100 are integrally arranged, that is, the bottom plate and the rubber frame 100 are integrally obtained by not hollowing out the interior of the rubber frame 100 and leaving a thin bottom, which is the bottom plate, so that the rubber frame 100 has better structural strength.
Further, for the reinforcing glue frame 100's structural strength, be provided with the grating board on the bottom plate, like this, reach backlight unit 10 has better structural strength simultaneously, can also the attenuate the thickness of light guide plate 200, like this, the process light that light guide plate 200 propagated is enough to reach ideal display effect, need not the reflectance coating and further reflects to the light, reduces the use of reflectance coating, can directly reduce manufacturing cost, creates economic benefits.
To further enhance the structural strength of the rubber frame 100, in one embodiment, the grid plate is integrally provided with the bottom plate. Specifically, the grid plate may be formed by not hollowing out the interior of the rubber frame 100 and leaving a bottom to be processed to obtain a grid structure, so that the grid plate and the bottom plate may be directly integrated, and the rubber frame 100 has a light weight and a good structural strength.
In order to enable the light guide plate 200 to be mounted on the plastic frame 100, in one embodiment, an abutting block is disposed on the plastic frame 100, and the abutting block abuts against the first surface of the light guide plate 200. Specifically, the butt joint piece sets up on the inside wall of gluey frame 100, the butt joint piece encircles and sets up on the inside wall of gluey frame 100, like this, the lateral wall of light guide plate 200 with the inside wall butt of gluey frame 100, the outside edge of the first face of light guide plate 200 with the butt joint piece butt, light guide plate 200 can install steadily glue on the frame 100.
In order to enable the light guide plate 200 to be more stably installed on the rubber frame 100, in an embodiment, a plurality of clamping blocks are disposed on the light guide plate 200, a plurality of clamping grooves are disposed on the rubber frame 100, and each clamping block is clamped in one of the clamping grooves. Specifically, each of the fixture blocks is uniformly disposed on the sidewall of the light guide plate 200, and the fastening grooves are disposed one by one at corresponding positions on the inner sidewall of the plastic frame 100, so that each fixture block can correspond to one of the fastening grooves, and thus, the fixture blocks are fastened in the fastening grooves, so that the sidewall of the light guide plate 200 can be prevented from moving relative to the inner sidewall of the plastic frame 100, and can be connected together more stably, and the light guide plate 200 can be mounted in the plastic frame 100 more stably.
As shown in fig. 3, in order to further enhance the light guiding performance of the backlight module 10, in an embodiment, the backlight module further includes: the diffusion film 300, the shape of the diffusion film 300 is adapted to the light guide plate 200, the diffusion film 300 is disposed on the second surface of the light guide plate 200, that is, the diffusion film 300 is disposed on the surface of the light guide plate 200 away from the bottom plate, so that the light transmitted through the light guide plate 200 is uniformly diffused by the diffusion film 300, and the uniformity of the brightness of the backlight module 10 can be improved. Furthermore, the diffusion film 300 is provided with a shading adhesive 400, the shading adhesive 400 is adhered to the joint of the diffusion film 300 and the adhesive frame 100, and the shading adhesive 400 is attached to the joint of the adhesive frame 100 and the diffusion film 300, namely, the edge of the backlight module 10 is adhered to the shading adhesive 400, so that the function of dust prevention is achieved, the edge of the backlight module 10 can be shaded, and light is concentrated at the center of the backlight module 10.
In one embodiment, a light emitting display device is provided, which includes the backlight module described in any of the above embodiments. In this embodiment, the light emitting display device is a liquid crystal panel, the light emitting display device further includes a circuit board, a liquid crystal display screen, and an outer frame, the backlight module is disposed on the circuit board, and is mounted and fixed on the circuit board through a mounting pin and a fixing pin, the liquid crystal display screen is fixed on the backlight module, and the outer frame is disposed around the outside of the backlight module.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A backlight module, comprising: a rubber frame and a light guide plate;
the light guide plate and the rubber frame are arranged as follows:
the light guide plate is provided with two positioning grooves, and the rubber frame is provided with two positioning blocks;
or the like, or, alternatively,
the rubber frame is provided with two positioning grooves, and the light guide plate is provided with two positioning blocks;
or the like, or, alternatively,
the light guide plate is provided with a positioning groove and a positioning block, and the rubber frame is provided with another positioning groove and another positioning block;
the width of the two positioning blocks is different, each positioning groove is respectively matched with one positioning block, each positioning block is embedded with one positioning groove, and the light guide plate is installed on the rubber frame.
2. The backlight module according to claim 1, wherein a bottom plate is disposed in the plastic frame, and the first surface of the light guide plate faces the bottom plate.
3. The backlight module as claimed in claim 2, wherein the bottom plate is provided with a grid.
4. A backlight module according to claim 2 or 3, wherein the base plate is integrally formed with the bezel.
5. A backlight module according to claim 3, wherein the grid plate is integral with the base plate.
6. The backlight module as claimed in claim 1, wherein the rubber frame is provided with a contact block, and the contact block contacts with the first surface of the light guide plate.
7. The backlight module as claimed in claim 1, wherein the light guide plate has a plurality of clamping blocks, the rubber frame has a plurality of clamping grooves, and each clamping block is clamped in one of the clamping grooves.
8. The backlight module according to claim 1, further comprising: and the shape of the diffusion film is matched with that of the light guide plate, and the diffusion film is arranged on the second surface of the light guide plate.
9. The backlight module as claimed in claim 8, wherein the diffusion film is provided with a light blocking glue, and the light blocking glue is adhered to a joint of the diffusion film and the glue frame.
10. A light emitting display device comprising the backlight module according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315265.0U CN214409514U (en) | 2020-12-31 | 2020-12-31 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023315265.0U CN214409514U (en) | 2020-12-31 | 2020-12-31 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214409514U true CN214409514U (en) | 2021-10-15 |
Family
ID=78043543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023315265.0U Active CN214409514U (en) | 2020-12-31 | 2020-12-31 | Backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214409514U (en) |
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2020
- 2020-12-31 CN CN202023315265.0U patent/CN214409514U/en active Active
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