CN215730575U - Backlight module, display device and terminal - Google Patents
Backlight module, display device and terminal Download PDFInfo
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- CN215730575U CN215730575U CN202121419957.1U CN202121419957U CN215730575U CN 215730575 U CN215730575 U CN 215730575U CN 202121419957 U CN202121419957 U CN 202121419957U CN 215730575 U CN215730575 U CN 215730575U
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Abstract
The utility model discloses a backlight module, a display device and a terminal, wherein the backlight module comprises a rubber frame, a reflecting sheet, a light guide plate and an optical diaphragm group, the rubber frame comprises a bottom plate and a side plate which is arranged around the periphery of the bottom plate, the bottom plate and the side plate are enclosed to form an accommodating cavity, and the reflecting sheet, the light guide plate and the optical diaphragm group are accommodated in the accommodating cavity; in the thickness direction of the light guide plate, the optical film group is arranged on one side of the light guide plate in a stacking manner, the reflector plate is arranged on the other side of the light guide plate in a stacking manner, and the reflector plate is positioned between the light guide plate and the bottom plate; the circular through-hole has been seted up to the one end that is close to the curb plate on the bottom plate, it still includes the nested sleeve in circular through-hole to glue the frame, the sleeve runs through the reflector plate, light guide plate and optical film group, telescopic height is 0.70mm ~ 0.72mm, telescopic internal diameter is 2.45mm ~ 2.50mm, backlight unit is through nested sleeve in the through-hole, the sleeve not only plays the effect of location installation, moreover, the steam generator is simple in structure, the processing preparation of being convenient for, backlight unit's product quality has been improved, the pleasing to the eye degree of outward appearance has been promoted, economic cost is reduced.
Description
Technical Field
The utility model relates to the technical field of backlight modules, in particular to a backlight module, a display device and a terminal.
Background
Along with the upgrading of market demands, the requirements of users on the visual impression of the screen of the smart phone are higher and higher, the screen occupation ratio is a parameter used for representing the relative ratio of the areas of the screen and the front panel of the smart phone, the larger the area of the screen is relative to the area of the front panel of the smart phone, the higher the screen occupation ratio is, the visual impression is easier to obtain by the appearance design of the smart phone, and the user experience impression is better, so that the smart phone screen gradually develops towards the direction of a full screen; at present, in a mobile phone backlight module, in order to improve the screen occupation ratio, a through hole is often only arranged at the position corresponding to a camera, a user generally refers to as a hole digging screen, the processing difficulty of the through hole on the existing hole digging screen backlight module is large, the roughness of the hole wall is large, the backlight module is low in product quality, poor in appearance attractiveness and high in manufacturing economic cost.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a backlight module, a display device and a terminal, and aims to solve the problem of low quality of a backlight module product.
In order to achieve the above object, the present invention provides a backlight module, which includes a rubber frame, a reflective sheet, a light guide plate and an optical film set, wherein the rubber frame includes a bottom plate and a side plate surrounding the bottom plate, the bottom plate and the side plate define an accommodating cavity, and the reflective sheet, the light guide plate and the optical film set are accommodated in the accommodating cavity; in the thickness direction of the light guide plate, the optical film group is arranged on one side of the light guide plate in a stacked manner, the reflector plate is arranged on the other side of the light guide plate in a stacked manner, and the reflector plate is positioned between the light guide plate and the bottom plate; the bottom plate is provided with a circular through hole at one end close to the side plate, the rubber frame further comprises a sleeve nested in the circular through hole, the sleeve penetrates through the reflector plate, the light guide plate and the optical diaphragm group, the height of the sleeve is 0.70-0.72 mm, and the inner diameter of the sleeve is 2.45-2.50 mm.
Preferably, the height of the sleeve is 0.70 mm.
Preferably, the inner diameter of the sleeve is 2.50 mm.
Preferably, the sleeve is integrally formed with the base plate.
Preferably, the optical film group comprises a diffusion film, and the diffusion film is stacked on one side of the light guide plate, which is far away from the reflection sheet.
Preferably, the optical film group further comprises a light-enhancing composite film, and the light-enhancing composite film is arranged on one side of the diffusion film, which is far away from the light guide plate in a laminated manner.
Preferably, a shading frame is arranged on one side, far away from the bottom plate, of the rubber frame, the shading frame is matched with the rubber frame in shape, and a through hole is formed in the position, corresponding to the sleeve, of the shading frame.
Preferably, the backlight module further comprises a flexible circuit board and an LED lamp accommodated in the accommodating cavity, two ends of the LED lamp are respectively connected with the light guide plate and the side plate, the flexible circuit board is connected to the side plate, and the flexible circuit board is electrically connected with the LED lamp.
The utility model also provides a display device which comprises the backlight module.
The utility model also provides a terminal which comprises the display device.
In the backlight module, the bottom plate and the side plate of the rubber frame enclose the accommodating cavity for accommodating the reflector plate, the light guide plate and the optical film group, the reflector plate is stacked on the bottom plate, the optical film group, the light guide plate and the reflector plate are sequentially stacked in the thickness direction, the bottom plate is provided with the circular through hole, the sleeve is nested in the through hole and communicated with the through hole, the reflector plate, the light guide plate and the optical film group are all sheathed outside the sleeve, the height of the sleeve is 0.70-0.72 mm, the inner diameter of the sleeve is 2.45-2.50 mm, the sleeve is nested in the through hole, the sleeve not only plays a role in positioning and mounting the reflector plate, the light guide plate and the optical film group, but also has a simple structure, is convenient to process and manufacture, improves the product quality of the backlight module, improves the appearance attractiveness and reduces the economic cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a backlight module according to an embodiment of the utility model;
FIG. 2 is a schematic plan view illustrating a backlight module according to an embodiment of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
fig. 4 is an enlarged schematic view of the region B in fig. 2.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
30 | |
| 10 | |
40 | |
| 11 | |
41 | |
| 111 | Through |
42 | Intensifying |
| 12 | |
50 | |
| 13 | Containing |
51 | Via |
| 14 | |
60 | |
| 20 | |
70 | LED lamp |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the present embodiment are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The description of the orientations of "up", "down", "left", "right", etc. in the present invention, with reference to the orientations shown in fig. 2 and 3, is merely used to explain the relative positional relationship between the components in the postures shown in fig. 2 and 3, and if the specific posture is changed, the directional indication is changed accordingly.
The utility model provides a backlight module.
In the backlight module 100 of this embodiment, the backlight module 100 includes a rubber frame 10, a reflective sheet 20, a light guide plate 30 and an optical film assembly 40, the rubber frame 10 includes a bottom plate 11 and a side plate 12 surrounding the bottom plate 11, the bottom plate 11 and the side plate 12 define an accommodating cavity 13, and the reflective sheet 20, the light guide plate 30 and the optical film assembly 40 are accommodated in the accommodating cavity 13; in the thickness direction of the light guide plate 30, the optical film group 40 is stacked on one side of the light guide plate 30, the reflective sheet 20 is stacked on the other side of the light guide plate 30, and the reflective sheet 20 is located between the light guide plate 30 and the bottom plate 11; the bottom plate 11 is provided with a circular through hole 111 at one end close to the side plate 12, the rubber frame 10 further comprises a sleeve 14 nested in the circular through hole 111, the sleeve 14 penetrates through the reflector plate 20, the light guide plate 30 and the optical diaphragm group 40, the height of the sleeve 14 is 0.70 mm-0.72 mm, and the inner diameter of the sleeve 14 is 2.45 mm-2.50 mm. It should be noted that the backlight module 100 of the present invention can be applied to a smart phone, a television, a computer, or other terminals with a display device, and in this embodiment, the application of the backlight module 100 to the smart phone is only taken as an example for description.
As shown in fig. 1 to 4, the bottom plate 11 and the side plate 12 of the rubber frame 10 enclose an accommodating cavity 13 for accommodating the reflective sheet 20, the light guide plate 30 and the optical film group 40, the thickness direction of the light guide plate 30 is the vertical direction, the reflective sheet 20 is stacked on the bottom plate 11, and the optical film group 40, the light guide plate 30 and the reflective sheet 20 are sequentially stacked from the thickness direction, that is, the optical film group 40, the light guide plate 30 and the reflective sheet 20 are sequentially stacked from top to bottom.
In an embodiment, the rubber frame 10 is a rectangular frame, the side plate 12 is disposed around the periphery of the bottom plate 11 and is formed with four corners, the bottom plate 11 is provided with a circular through hole 111, the through hole 111 is located at a position close to one of the corners, the sleeve 14 is nested in the through hole 111, the sleeve 14 is communicated with the through hole 111, the reflective sheet 20, the light guide plate 30 and the optical film group 40 are all nested outside the sleeve 14, as shown in fig. 2 and 3, the height of the sleeve 14 is h, h is 0.70mm to 0.72mm, the inner diameter of the sleeve 14 is d, d is 2.45mm to 2.50mm, the sleeve 14 is nested in the through hole 111, the sleeve 14 not only plays a role in positioning and mounting the reflective sheet 20, the light guide plate 30 and the optical film group 40, but also has a simple structure, and is convenient to process and manufacture, thereby improving the product quality of the backlight module 100, improving the appearance aesthetic degree, and reducing the economic cost. In other embodiments, the through hole 111 on the bottom plate 11 can be further opened between the two corners, the position where the through hole 111 is opened can be flexibly set according to the actual use requirement, and the position where the through hole 111 is opened is not limited by the backlight module 100 of the present invention.
In a preferred embodiment, as shown in fig. 2 and 3, the height of the sleeve 14 is 0.70mm, the inner diameter of the sleeve 14 is 2.50mm, i.e., h is 0.70mm, and d is 2.50mm, and the sleeve 14 is integrally formed on the bottom plate 11, i.e., the sleeve 14 is integrally formed on the hole wall of the through hole 111, which is not only easy to manufacture, but also has the advantages of saving assembly steps and assembly errors, and also reduces the processing difficulty, further improves the product quality, and reduces the economic cost.
The backlight module 100 of the present embodiment further includes a flexible circuit board 60 and an LED lamp 70 accommodated in the accommodating cavity 13, two ends of the LED lamp 70 are respectively connected to the light guide plate 30 and the side plate 12, the flexible circuit board 60 is connected to the side plate 12, and the flexible circuit board 60 is electrically connected to the LED lamp 70. As shown in fig. 2 and 4, one end of the light guide plate 30 facing the side plate 12 is provided with a flexible circuit board 60 and an LED lamp 70 electrically connected to the flexible circuit board 60, the flexible circuit board 60 and the LED lamp 70 are located at one end away from the through hole 111, the flexible circuit board 60 is connected to the side plate 12 and plays a role in connecting and conducting electricity, two ends of the LED lamp 70 are bonded to the light guide plate 30 and the side plate 12 by adhesive tapes, the LED lamp 70 is used for emitting a light source, the light guide plate 30 is used for absorbing the light source emitted by the LED lamp 70, so that the light guide plate 30 emits a uniform surface light source, the reflective sheet 20 is stacked on the lower side of the light guide plate 30, and the reflective sheet 20 is used for reflecting the light exposed on the lower side of the light guide plate 30 back into the light guide plate 30, thereby further improving the brightness of the light guide plate 30.
In this embodiment, the optical film group 40 includes a diffusion film 41, and the diffusion film 41 is stacked on one side of the light guide plate 30 away from the reflective sheet 20; the optical film group 40 further includes a light-enhancing composite film 42, and the light-enhancing composite film 42 is stacked on a side of the diffusion film 41 facing away from the light guide plate 30. As shown in fig. 1 to 3, the optical film group 40 includes a light-enhancing composite film 42 and a diffusion film 41 sequentially stacked from top to bottom, wherein the diffusion film 41 is stacked on the upper side of the light guide plate 30, the diffusion film 41 plays a role of correcting the light diffusion angle, the diffusion film 41 can correct the light into a uniform surface light source to achieve the effect of optical diffusion, and the light source has the advantages of large area, good uniformity and stable chromaticity after being diffused by the diffusion film 41; the brightness enhancement composite film 42 is disposed on the upper side of the diffusion film 41, and a plurality of diamond grooves for enhancing the brightness of light are disposed on the surface of the brightness enhancement composite film 42, so that a prism pattern is formed on the surface of the brightness enhancement composite film 42, and the brightness of the backlight module 100 is enhanced by the light source through the brightness enhancement composite film 42.
As shown in fig. 1 to 3, a light shielding frame 50 is disposed on a side of the rubber frame 10 away from the bottom plate 11, the light shielding frame 50 is matched with the rubber frame 10 in shape, and a through hole 51 is disposed at a position of the light shielding frame 50 corresponding to the sleeve 14. Shading frame 50 sets up in the upside of gluing frame 10, and shading frame 50 matches with the shape of gluing frame 10, and in preferred embodiment, shading frame 50 and gluey frame 10 are the rectangle frame, and shading frame 50 plays the effect of shielding light, has effectively prevented that light from taking place the loss from the side, has further improved backlight unit 100's luminance to the via hole 51 has still been seted up to the position that corresponds sleeve 14 on shading frame 50, and structural design is reasonable.
The present invention further provides a display device, which includes the backlight module 100 as described above, and the specific structure of the backlight module 100 refers to the above embodiments, and since the display device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not repeated herein.
The present invention further provides a terminal, which may be a smart phone, where the terminal includes the display device as described above, and the display device includes the backlight module 100 as described above, and the specific structure of the backlight module 100 refers to the foregoing embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A backlight module is characterized by comprising a rubber frame, a reflecting sheet, a light guide plate and an optical diaphragm group, wherein the rubber frame comprises a bottom plate and a side plate which is arranged around the periphery of the bottom plate, an accommodating cavity is formed by the bottom plate and the side plate in a surrounding mode, and the reflecting sheet, the light guide plate and the optical diaphragm group are accommodated in the accommodating cavity; in the thickness direction of the light guide plate, the optical film group is arranged on one side of the light guide plate in a stacked manner, the reflector plate is arranged on the other side of the light guide plate in a stacked manner, and the reflector plate is positioned between the light guide plate and the bottom plate; the bottom plate is provided with a circular through hole at one end close to the side plate, the rubber frame further comprises a sleeve nested in the circular through hole, the sleeve penetrates through the reflector plate, the light guide plate and the optical diaphragm group, the height of the sleeve is 0.70-0.72 mm, and the inner diameter of the sleeve is 2.45-2.50 mm.
2. The backlight module of claim 1, wherein the height of the sleeve is 0.70 mm.
3. The backlight module of claim 1, wherein the inner diameter of the sleeve is 2.50 mm.
4. The backlight module of claim 1, wherein the sleeve is integrally formed with the base plate.
5. The backlight module as claimed in claim 1, wherein the optical film group comprises a diffusion film, and the diffusion film is stacked on a side of the light guide plate facing away from the reflective sheet.
6. The backlight module as claimed in claim 5, wherein the optical film set further comprises a light-enhancing composite film, and the light-enhancing composite film is stacked on a side of the diffusion film facing away from the light guide plate.
7. The backlight module according to any one of claims 1-6, wherein a light shielding frame is disposed on a side of the plastic frame away from the bottom plate, the light shielding frame is matched with the plastic frame in shape, and a through hole is disposed at a position of the light shielding frame corresponding to the sleeve.
8. The backlight module according to any one of claims 1 to 6, further comprising a flexible circuit board and an LED lamp accommodated in the accommodating chamber, wherein two ends of the LED lamp are respectively connected to the light guide plate and the side plate, the flexible circuit board is connected to the side plate, and the flexible circuit board is electrically connected to the LED lamp.
9. A display device, characterized in that the display device comprises a backlight module according to any one of claims 1-8.
10. A terminal characterized in that it comprises a display device according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419957.1U CN215730575U (en) | 2021-06-24 | 2021-06-24 | Backlight module, display device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121419957.1U CN215730575U (en) | 2021-06-24 | 2021-06-24 | Backlight module, display device and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN215730575U true CN215730575U (en) | 2022-02-01 |
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|---|---|---|---|
| CN202121419957.1U Active CN215730575U (en) | 2021-06-24 | 2021-06-24 | Backlight module, display device and terminal |
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| CN (1) | CN215730575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115951516A (en) * | 2022-12-08 | 2023-04-11 | 业成科技（成都）有限公司 | Backlight module and display device |
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2021
- 2021-06-24 CN CN202121419957.1U patent/CN215730575U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115951516A (en) * | 2022-12-08 | 2023-04-11 | 业成科技（成都）有限公司 | Backlight module and display device |
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