CN212301956U - Backlight structure for preventing diaphragm from shifting - Google Patents
Backlight structure for preventing diaphragm from shifting Download PDFInfo
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- CN212301956U CN212301956U CN202020908825.4U CN202020908825U CN212301956U CN 212301956 U CN212301956 U CN 212301956U CN 202020908825 U CN202020908825 U CN 202020908825U CN 212301956 U CN212301956 U CN 212301956U
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- plate
- diaphragm
- ear plate
- light guide
- film
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- 239000012788 optical film Substances 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 4
- 239000010408 film Substances 0.000 claims description 30
- 238000003825 pressing Methods 0.000 claims description 19
- 238000009792 diffusion process Methods 0.000 claims description 14
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 206010063659 Aversion Diseases 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012958 reprocessing Methods 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
A backlight structure for preventing diaphragm displacement relates to the field of display backlight, and comprises a rubber frame shell, a light guide plate and an optical diaphragm, wherein the rubber frame shell consists of a bottom plate and a side plate, a notch part is arranged on the side plate, and the light guide plate is positioned in the rubber frame shell and is attached to the bottom plate; the side edge of the optical diaphragm is provided with an ear plate part extending outwards; the optical film is attached to the light guide plate, and the ear plate part of the optical film is fixed in the notch part through a clamping seat; through add the otic placode portion on the optics diaphragm to utilize the cassette to support to press the realization to the fixed of optics diaphragm to the otic placode portion, guarantee the stability of optics diaphragm, the condition that the optics diaphragm breaks away from the aversion from the light guide plate can not appear, does benefit to and guarantees product quality, reduces the rate of reprocessing.
Description
Technical Field
The utility model relates to show the field in a poor light, specifically be a prevent structure in a poor light of diaphragm aversion.
Background
In the existing structure of matching the light guide plate with the optical film, referring to fig. 7, the assembly method adopted is as follows: the optical film is directly provided with a double-sided adhesive tape with the light guide plate, and the optical film is firmly connected with the light guide plate by utilizing the adhesive tape.
However, in actual production, it is found that after the whole backlight structure is subjected to a high-temperature test, the double-sided adhesive tape deforms under the influence of high temperature to influence the flatness of the optical film relative to the light guide plate; meanwhile, the high temperature causes the viscosity of the double-sided adhesive to be reduced, and the situation that the optical film is not firmly adhered occurs; so that the phenomenon that the optical film is separated and displaced relative to the guide light plate often occurs in the carrying process, thereby influencing the quality of products and increasing the repair rate of the products.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a structure in a poor light ensures the stability of optics diaphragm to reach and reduce the product and reprocess the rate, reduce the extravagant purpose of cost.
The utility model provides a technical scheme as follows:
a backlight structure for preventing diaphragm displacement comprises a rubber frame shell, a light guide plate and an optical diaphragm, wherein the rubber frame shell consists of a bottom plate and a side plate, and a notch part is arranged on the side plate;
the light guide plate is positioned in the rubber frame shell and is attached to the bottom plate;
the side edge of the optical diaphragm is provided with an ear plate part extending outwards;
the optical film is attached to the light guide plate, and the ear plate part of the optical film is fixed in the notch part through a clamping seat.
Furthermore, the optical film comprises an upper brightness enhancement film, a lower brightness enhancement film and a diffusion film attached to the light guide plate, and the upper brightness enhancement film, the lower brightness enhancement film and the diffusion film are overlapped from top to bottom.
Furthermore, a first lug plate is arranged on the side edge of the upper brightness enhancement sheet; a second lug plate is arranged on the side edge of the lower brightness enhancement film; and a third lug plate is arranged on the side edge of the diffusion plate, and the first lug plate, the second lug plate and the third lug plate jointly form a lug plate part in a stepped structure.
Further, the clamping seat comprises a pressing part and a hooking part; the sticking and pressing part is of a step-shaped structure matched with the lug plate part;
the side edge of the bottom plate is provided with a convex block extending upwards, and a clamping hook part is arranged on the convex block;
the clamping hook part is connected and matched with the hooking part, so that the sticking and pressing part is abutted against the ear plate part and the clamping seat is filled in the gap.
Further, the clamping seat is of an injection molding and integral forming structure.
Furthermore, the hooking part is of an inwards concave hooking groove structure; the clamping hook part is of a convex hook structure.
Furthermore, an elastic pad is arranged between the pressing part and the ear plate part.
Furthermore, the elastic pad is an elastic double-sided adhesive tape.
Furthermore, a reflecting sheet is arranged between the light guide plate and the bottom plate.
The beneficial effect that adopts this technical scheme to reach does:
through add the otic placode portion on the optics diaphragm to utilize the cassette to support to press the realization to the fixed of optics diaphragm to the otic placode portion, guarantee the stability of optics diaphragm, the condition that the optics diaphragm breaks away from the aversion from the light guide plate can not appear, does benefit to and guarantees product quality, reduces the rate of reprocessing.
Drawings
Fig. 1 is an overall structural view of a backlight structure.
Fig. 2 is a partially enlarged view of a portion a in fig. 1, showing a matching manner of the card seat and the notch portion.
Fig. 3 is a schematic view of a card seat with a resilient pad.
Fig. 4 is a schematic view of the structure of the ear plate portion in an exploded view.
Fig. 5 is a top view structural diagram of the backlight structure.
Fig. 6 is a cross-sectional view of B-B in fig. 5, showing the internal structure after assembly.
Fig. 7 is a schematic diagram illustrating a light guide plate bonded to an optical film through a double-sided adhesive tape according to the prior art.
Wherein: 10 rubber frame shell, 11 bottom plate, 12 side plate, 13 clamping hook part, 20 light guide plate, 30 optical film, 31 ear plate part, 32 upper brightness enhancement piece, 33 lower brightness enhancement piece, 34 diffusion piece, 40 clamping seat, 41 laminating part, 42 hook part, 100 cavity, 121 gap part, 311 first ear plate piece, 312 second ear plate piece, 313 third ear plate piece, 411 first step, 412 second step and 413 third step.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
A backlight structure for preventing diaphragm displacement is disclosed, referring to fig. 1 and fig. 4, comprising a rubber frame casing 10, wherein the rubber frame casing 10 is composed of a bottom plate 11 and side plates 12, the side plates 12 are arranged around the bottom plate 11 and jointly enclose a cavity 100 capable of accommodating a light guide plate 20 and an optical diaphragm 30, and the optical diaphragm 30 and the light guide plate 20 are overlapped from top to bottom in the cavity 100; the overlapping arrangement described here can be understood in particular as: the light guide plate 20 is attached to the bottom plate 11, and the optical films 30 are attached to the light guide plate 20, so that the overlapping arrangement is realized by arranging the layers one by one.
In the embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 4, the side of the optical film 30 is provided with an outward extending ear plate portion 31, the side plate 12 is provided with a notch portion 121 matching with the ear plate portion 31, where the matching means that the ear plate portion 31 can be smoothly placed in the notch portion 121, after the ear plate portion 31 is placed in the notch portion 121, a card seat 40 is further clamped into the ear plate portion 31, the size of the card seat 40 matches with the size of the notch portion 121, and the ear plate portion 31 is fixed in the notch portion 121 by the card seat 40.
Through add ear plate portion 31 on optics diaphragm 30 to utilize the card seat 40 to realize fixing optics diaphragm 30 to the support of ear plate portion 31, guarantee optics diaphragm 30's stability, the condition that optics diaphragm 30 breaks away from the aversion from light guide plate 20 can not appear, does benefit to assurance product quality, reduces the rate of reprocessing.
Referring to fig. 4, the optical film 30 in the present embodiment includes an upper brightness enhancement film 32, a lower brightness enhancement film 33, and a diffusion film 34 attached to the light guide plate 20, wherein the upper brightness enhancement film 32, the lower brightness enhancement film 33, and the diffusion film 34 are overlapped from top to bottom.
The ear plate portion 31 is composed of a plurality of ear plate pieces, specifically, a first ear plate piece 311 is disposed on the side of the upper brightness enhancement film 32; a second ear plate piece 312 is arranged on the side edge of the lower brightness enhancement film 33; a third ear plate piece 313 is arranged on the side edge of the diffusion sheet 34; the first, second and third ear plate pieces 311, 312, 313 together constitute the ear plate portion 31.
Through the design, when the clamping seat 40 is used for abutting and clamping, the clamping seat 40 can act on the first ear plate piece 311, the second ear plate piece 312 and the third ear plate piece 313 at the same time, namely the clamping seat 40 is equal to respectively fixing the upper light adding piece 32, the lower light adding piece 33 and the diffusion piece 34, so that the stability of each membrane is ensured; compared with the mode that only the upper brightness enhancement film 32 acts on the uppermost edge, the clamping seat 40 only presses the upper brightness enhancement film 32 to enable the pressing force to be transmitted from top to bottom so as to realize simultaneous fixation, and the respective fixation in the embodiment is not only more beneficial to improving the stability of the upper brightness enhancement film 32, the lower brightness enhancement film 33 and the diffusion film 34, but also can avoid the situation that part of the optical films 30 are cracked due to uneven stress in the pressing process of the clamping seat 40.
Specifically, referring to fig. 2 to 3, the ear plate portion 31 has a stepped structure, that is, it can be understood that: the first otic placode piece 311, the second otic placode piece 312 and the third otic placode piece 313 are arranged in layers, and one layer is in a step-shaped distribution; the clamping seat 40 is provided with a pressing part 41 matched with the ear plate part 31, and the pressing part 41 is also in a step-shaped structure, which can be understood as follows: the sticking and pressing part 41 is provided with a first step 411 matched with the first ear plate piece 311, a second step 412 matched with the second ear plate piece 312 and a third step 413 matched with the third ear plate piece 313, when the clamping seat 40 is abutted on the ear plate part 31, the first step 411 on the sticking and pressing part 41 is jointed with the first ear plate piece 311, the second step 412 is jointed with the second ear plate piece 312, and the third step 413 is jointed with the third ear plate piece 313; the fixation of the optical film is realized in such a way that the optical film is respectively attached, so that the stabilizing effect is enhanced.
Preferably, referring to fig. 3, an elastic pad is disposed between the pressing portion 41 and the ear plate portion 31, so that stability is further ensured by the elastic pad, and the elastic pad can avoid hard contact friction between the ear plate portion 31 and the pressing portion 41, thereby effectively protecting the ear plate portion 31.
Preferably, the elastic pad is a double-sided adhesive tape with elasticity, and the pressing part 41 and the ear plate part 31 are bonded by the double-sided adhesive tape, so that the connection stability of the ear plate part 31 is ensured; even if the double-sided adhesive is deformed and the adhesive force is reduced during a high-temperature test, the deformed double-sided adhesive is still located between the attaching and pressing portion 41 and the ear plate portion 31, and the elastic property of the double-sided adhesive still protects the ear plate portion 31 and prevents hard contact between the ear plate portion 31 and the attaching and pressing portion 41.
Certainly, in order to prevent the card seat 40 from easily falling off during the abutting process of the ear plate portions 31, a hooking portion 42 is further disposed on the card seat 40, and the hooking portion 42 is used for being connected with the side plate 12 or the bottom plate 11, so as to ensure the stability of the card seat 40.
In this embodiment, referring to fig. 2-3 and 5-6, in order to meet the operation habit and facilitate installation of the card socket 40, the bottom plate 11 is provided with a hook portion 13 corresponding to the hook portion 42, specifically, the hook portion 42 is an inward concave hook groove structure, the hook portion 13 is an outward convex hook structure, and the hook portion 42 and the hook portion 13 cooperate with each other, that is, the hook is hooked into the hook groove to realize installation and fixation of the card socket 40.
Considering that the bottom plate 11 is thin, the hook part 13 is directly added on the side edge of the bottom plate 11, so that the processing is not easy, and the thin thickness causes the connection part between the bottom plate 11 and the hook part 13 to have low stability, so that the separation is easy to occur; in this embodiment, the side of the bottom plate 11 is provided with a protrusion extending upward, and the hook portion 13 is disposed on the protrusion to ensure the connection stability of the hook portion 13.
When the light guide plate is used, the light guide plate 20, the diffusion sheet 34, the lower light enhancement sheet 33 and the upper light enhancement sheet 32 are sequentially stacked in the cavity 100, the first ear plate piece 311, the second ear plate piece 312 and the third ear plate piece 313 are ensured to be positioned in the notch part 121 in a step shape, then the clamping seat is clamped in along the notch part 121, the clamping hook part 13 is hooked on the hook part 42, meanwhile, the laminating part 41 on the clamping seat 40 is laminated on the first ear plate piece 311, the second ear plate piece 312 and the third ear plate piece 313, and therefore the stability of the upper light enhancement sheet 32, the lower light enhancement sheet 33 and the diffusion sheet 34 is ensured, and the situation of deviation cannot occur.
In order to ensure the integrity of the side plate 12 of the rubber frame shell 10, the clamping seat 40 should be matched with the size of the notch 121, and when the clamping seat 40 is clamped and fixed, the clamping seat 40 can fill the notch 121, so that the integrity of the whole side plate 12 is ensured.
Preferably, the clamping seat 40 is an injection-molded and integrally molded structure.
Preferably, a reflective sheet is provided between the light guide plate 20 and the chassis 11 in order to enhance the backlight performance and minimize the loss of the light guide plate 20.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. A backlight structure for preventing diaphragm displacement comprises a rubber frame shell (10), a light guide plate (20) and an optical diaphragm (30), and is characterized in that,
the rubber frame shell (10) consists of a bottom plate (11) and a side plate (12), and a notch part (121) is arranged on the side plate (12);
the light guide plate (20) is positioned in the rubber frame shell (10) and is attached to the bottom plate (11);
the side edge of the optical film (30) is provided with an ear plate part (31) extending outwards;
the optical film (30) is attached to the light guide plate (20) and the ear plate portion (31) of the optical film (30) is fixed in the notch portion (121) through a clamping seat (40).
2. A backlight structure for preventing film shift according to claim 1, wherein the optical film (30) comprises an upper light enhancement film (32), a lower light enhancement film (33) and a diffusion film (34) attached to the light guide plate (20), and the upper light enhancement film (32), the lower light enhancement film (33) and the diffusion film (34) are overlapped from top to bottom.
3. The backlight structure for preventing film shift according to claim 2, wherein the upper brightness enhancement film (32) has a first ear piece (311) at a side thereof; a second ear plate piece (312) is arranged on the side edge of the lower brightness enhancement sheet (33); and a third ear plate piece (313) is arranged on the side edge of the diffusion sheet (34), and the first ear plate piece (311), the second ear plate piece (312) and the third ear plate piece (313) jointly form an ear plate part (31) in a step-shaped structure.
4. The backlight structure for preventing the diaphragm from shifting according to claim 3, wherein the clamping seat (40) comprises a pressing part (41) and a hooking part (42); the sticking and pressing part (41) is of a step-shaped structure matched with the ear plate part (31);
a convex block extending upwards is arranged on the side edge of the bottom plate (11), and a clamping hook part (13) is arranged on the convex block;
the clamping hook part (13) is connected and matched with the hooking part (42), so that the pressing part (41) is pressed against the ear plate part (31) and the clamping seat (40) fills the gap.
5. The backlight structure for preventing the diaphragm from shifting according to claim 4, wherein the hook portion (42) is a concave hook groove structure; the clamping hook part (13) is of a convex hook structure.
6. The backlight structure for preventing the diaphragm from shifting according to claim 5, wherein the clamping seat (40) is an injection-molded and integrally molded structure.
7. The backlight structure for preventing the diaphragm from shifting according to any one of claims 4 to 6, wherein an elastic pad is arranged between the pressing portion (41) and the ear plate portion (31).
8. The backlight structure of claim 7, wherein the elastic pad is a double-sided adhesive tape with elasticity.
9. A backlight structure for preventing film shift according to claim 1, wherein a reflective sheet is disposed between the light guide plate (20) and the bottom plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908825.4U CN212301956U (en) | 2020-05-26 | 2020-05-26 | Backlight structure for preventing diaphragm from shifting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908825.4U CN212301956U (en) | 2020-05-26 | 2020-05-26 | Backlight structure for preventing diaphragm from shifting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212301956U true CN212301956U (en) | 2021-01-05 |
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ID=73970665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020908825.4U Active CN212301956U (en) | 2020-05-26 | 2020-05-26 | Backlight structure for preventing diaphragm from shifting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212301956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326215A (en) * | 2022-02-09 | 2022-04-12 | Tcl华星光电技术有限公司 | Backlight module and display device |
-
2020
- 2020-05-26 CN CN202020908825.4U patent/CN212301956U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326215A (en) * | 2022-02-09 | 2022-04-12 | Tcl华星光电技术有限公司 | Backlight module and display device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Backlight Structure with Anti Film Shift Effective date of registration: 20231229 Granted publication date: 20210105 Pledgee: Hubei Science and Technology Financing Guarantee Co.,Ltd. Pledgor: Harbin ship Optoelectronics (Wuhan) Co.,Ltd. Registration number: Y2023980075304 |