CN215416205U - Reflector and direct type backlight module - Google Patents
Reflector and direct type backlight module Download PDFInfo
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- CN215416205U CN215416205U CN202121725780.8U CN202121725780U CN215416205U CN 215416205 U CN215416205 U CN 215416205U CN 202121725780 U CN202121725780 U CN 202121725780U CN 215416205 U CN215416205 U CN 215416205U
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- reflector
- cups
- backlight module
- reflecting
- reflective
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Abstract
The utility model discloses a reflector and a direct type backlight module. The reflecting cover is provided with the reinforcing structure at the intersection of the adjacent reflecting cups so as to fix the positions of the reflecting cups connected by the reinforcing structure, improve the stability and avoid the expansion and contraction of the reflecting cups due to external factors during use, thereby changing the position of the reflecting cups. The direct type backlight module using the reflector can maintain the stable structure of the reflector and the relative position of the reflector and the lamp panel unchanged, and keep the good optical effect of the backlight module.
Description
Technical Field
The utility model relates to the field of backlight modules, in particular to a reflector and a direct type backlight module.
Background
BackLight module (BackLight) is a device for providing light source behind a Liquid Crystal Display (LCD), and its light emitting effect directly affects the visual effect of the liquid crystal display module (LCM). The liquid crystal itself does not emit light and it displays graphics or characters as a result of its modulation of the light produced by the backlight module.
For the direct type backlight module, in order to achieve better partitioned display effect, a reflection partition structure is generally adopted as a reflection structure of a light source in the direct type backlight module, so that the direct type backlight module is isolated into display partitions. Direct type backlight unit adopts the bowl as reflection configuration, and the bowl comprises a plurality of reflection cups, is equipped with one or more openings in the reflection cup to can hold one or more LED chip when making it be connected with the lamp plate, thereby be applicable to the direct type lamp plate structure of pitch value between different LEDs. However, through carrying out an RA experiment on an electronic product having a reflector in a backlight module, it is found that the reflector is affected by temperature, external force vibration and other factors, and is subjected to deformation such as expansion and contraction, displacement and the like, so that the relative position between the reflective cup and the LED chip is changed, and the optical effect of the direct-type backlight module is affected. Particularly, the connection part between the adjacent reflecting cups has insufficient stability and can deform under the influence of external factors, so that the relative position between the reflecting cup and the LED chip is gradually changed to influence the optical effect of the backlight module.
SUMMERY OF THE UTILITY MODEL
In order to overcome at least one of the above-mentioned drawbacks of the prior art, the present invention provides a reflective cover and a direct-type backlight module.
The technical scheme adopted by the utility model for solving the problems is as follows:
a bowl comprising a plurality of reflector cups and a plurality of reinforcing structures;
the reinforcing structure is connected to the intersection of the adjacent reflecting cups so as to fix the positions of the reflecting cups.
The reflecting cover provided by the utility model has the advantages that the reinforcing structure is arranged at the intersection of the adjacent reflecting cups to fix the positions of the reflecting cups connected by the reinforcing structure, so that the stability is improved, and the phenomenon that the reflecting cups expand and contract due to external factors in use, so that the position of the reflecting cups is changed, and the optical effect of the backlight module is influenced is avoided.
Further, the reinforcing structure is a hard rubber piece, and the hard rubber piece is arranged at an intersection point where the adjacent reflection cups are connected.
Furthermore, the hard rubber part is made of acrylic rubber.
Further, the reflection cup comprises a reflection bottom surface and a reflection side surface connected with the reflection bottom surface;
the reinforcing structure comprises colloid and a fixing strip connected with the colloid, and the colloid is respectively connected with the adjacent reflection side faces of the adjacent reflection cups.
Further, the fixing strip is made of metal.
Furthermore, a plurality of first through holes are formed in the reflection bottom surface.
Further, a plurality of the reflecting cup arrays are arranged.
In a second aspect, the utility model also discloses a direct type backlight module, which comprises a lamp panel, a double-sided adhesive tape, a diffusion plate, an optical film and the reflector;
the lamp plate, the double faced adhesive tape, the bowl, the diffuser plate and the optics diaphragm sets up in proper order.
The direct type backlight module provided by the utility model has the advantages that the position of the reflecting cup in the reflecting cover is stabilized by adopting the reinforcing structure, the stability of the reflecting cover is improved, the expansion and shrinkage caused by external factors in the use process are avoided, the relative position of the reflecting cover and the lamp panel is kept unchanged, and the optical effect of the backlight module is kept good.
Further, be provided with a plurality of LED chips on the lamp plate, at least one the LED chip with the reflection cup is connected.
Further, the optical film comprises a diffusion film, a fluorescent film, a lower brightness enhancement film and an upper brightness enhancement film which are sequentially connected, and the diffusion film is connected with the diffusion plate.
In summary, the reflective cover and the direct type backlight module of the present invention have the following technical effects:
the reflecting cover provided by the utility model has the advantages that the reinforcing structure is arranged at the intersection of the adjacent reflecting cups to fix the positions of the reflecting cups connected by the reinforcing structure, so that the stability is improved, and the phenomenon that the reflecting cups expand and contract due to external factors in use, so that the position of the reflecting cups is changed, and the optical effect of the backlight module is influenced is avoided.
The direct type backlight module provided by the utility model has the advantages that the position of the reflecting cup in the reflecting cover is stabilized by adopting the reinforcing structure, the stability of the structure of the reflecting cover is improved, the expansion and shrinkage caused by external factors in the use process are avoided, the relative position of the reflecting cover and the lamp panel is kept unchanged, and the optical effect of the backlight module is kept good.
Other technical effects of the present invention are pointed out in the specification in combination with the specific structure.
Drawings
FIG. 1 is a top view of a reflective enclosure according to an embodiment of the present invention;
FIG. 2 is a rear view of a reflector according to an embodiment of the utility model;
FIG. 3 is a top view of a second reflective cover according to an embodiment of the present invention;
FIG. 4 is a rear view of a reflector according to a second embodiment of the present invention;
FIG. 5 is a schematic view of a direct-type backlight module according to the present invention.
Wherein the reference numerals indicate:
1. a reflector; 11. a reflective cup; 111. a reflective bottom surface; 1111. a first through hole; 112. a reflective side surface; 2. a reinforcing structure; 21. a colloid; 22. a fixing strip; 3. a lamp panel; 4. an LED chip; 5. double-sided adhesive tape; 51. a second through hole; 6. a diffusion plate; 7. an optical film.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.
Example one
Referring to fig. 1, 2 and 5, the present invention provides a direct type backlight module, which includes a lamp panel 3, a double-sided tape 5, a reflective cover 1, a diffuser plate 6 and an optical film 7 sequentially disposed in sequence.
Specifically, the reflective cover 1 includes a plurality of reflective cups 11 and a plurality of reinforcing structures 2, and the reinforcing structures 2 are connected to the intersections of the adjacent reflective cups 11 to fix the positions of the plurality of reflective cups 11. The reinforcing structure 2 is arranged at the intersection of the adjacent reflecting cups 11 to fix the positions of the reflecting cups 11 connected by the reinforcing structure 2, so that the stability is improved, and the phenomenon that the reflecting cups 11 expand and contract due to external factors in use is avoided, so that the position of the reflecting cups is changed, and the optical effect of the backlight module is influenced.
The reflective cup 11 includes a reflective bottom surface 111 and a reflective side surface 112 connected to the reflective bottom surface 111.
In the present invention, as an alternative, the reinforcing structure 2 is a hard adhesive member disposed at an intersection point where adjacent reflecting cups 11 are connected. Glue is added to the intersection points of the four reflecting cups 11, after the glue is hardened, the formed hard glue piece can fix the relative positions of the bonded reflecting cups 11, the integral reflecting cover 1 is fixed by respectively fixing the intersection points, and deformation caused by external factors is avoided.
Further, in the present invention, as an alternative, the hard adhesive member is made of acrylic adhesive. In addition, the hard glue member can be made of other known glues that set to a hard glue.
In the present invention, as an alternative, the reflective bottom surface 111 is provided with a plurality of first through holes 1111. The first through holes 1111 are used for accommodating the LED chips 4, usually only one first through hole 1111 is disposed on one reflective cup 11, and one LED chip 4 is accommodated in one first through hole 1111; however, in order to optimize the reflection effect of the reflection cover 1, there are two structures: one reflecting cup 11 is provided with only one first through hole 1111 which can accommodate a plurality of LED chips 4; one reflection cup 11 is provided with a plurality of first through holes 1111, and each of the first through holes 1111 accommodates one LED chip 4.
In the present invention, as an optional scheme, the plurality of reflective cups 11 are arranged in an array, so that the reinforcing structure 2 extends in a single direction, positions of more reflective cups 11 in the same direction can be fixed at the same time, and the division of the display partition of the reflective cover 1 is facilitated, and the present invention is convenient to manufacture and low in manufacturing cost.
In the present invention, as an optional scheme, the lamp panel 3 is provided with a plurality of LED chips 4, and at least one LED chip 4 is connected to the reflective cup 11. Usually, only one first through hole 1111 for accommodating only one LED chip 4 is disposed on the reflective bottom surface 111 in one reflective cup 11, so as to avoid mutual optical interference caused by different LED chips 4 in the same first through hole 1111; however, in a special case, a plurality of LED chips 4 may be used to form the light emitting effect of the shadowless lamp in the same first through hole 1111.
In the present invention, as a preferable scheme, a plurality of second through holes 51 are provided on the double-sided adhesive tape 5; the first through hole 1111 and the second through hole 51 are concentrically arranged, and the area of the first through hole 1111 is larger than that of the second through hole 51. Through the size that changes second through-hole 51 on first through-hole 1111 and the double faced adhesive tape 5 on the reflection bottom surface 111 of reflection cup 11, make the area of first through-hole 1111 is greater than the area of second through-hole 51, the area of contact increase of reflection bottom surface 111 and double faced adhesive tape 5, the orifice edge of first through-hole 1111 of melt adhesive tape parcel during the double faced adhesive tape 5 hot melt improves the adhesion properties of reflection cup 11 and double faced adhesive tape 5, improves the stability of bowl 1, avoids taking place the harmomegathus displacement because of external factor to influence backlight unit's optical effect. The arrangement of the same center of gravity means that the centers of gravity of the first through hole 1111 and the second through hole 51 are overlapped.
In the present invention, as a preferable mode, the optical film 7 includes a diffusion film, a fluorescent film, a lower brightness enhancement film, and an upper brightness enhancement film connected in this order, and the diffusion film is connected to the diffusion plate 6.
The direct type backlight module provided by the utility model has the advantages that the position of the reflecting cup 11 in the reflecting cover 1 is stabilized by adopting the reinforcing structure 2, the stability of the structure of the reflecting cover 1 is improved, the expansion and shrinkage caused by external factors in the use process are avoided, the relative position of the reflecting cover 1 and the lamp panel 3 is kept unchanged, and the optical effect of the backlight module is kept good. The direct type backlight module is mainly applied to large and medium-sized display products.
Example two
Referring to fig. 3 and 4, the difference between the second embodiment and the first embodiment is that, in particular, the reinforcing structure 2 includes a glue body 21 and a fixing strip 22 connected to the glue body 21, and the glue body 21 is connected to the adjacent reflective side surfaces 112 of the adjacent reflective cups 11 respectively. Wherein the colloid 21 is prepared from at least one soft colloid such as silica gel. The fixing strips 22 and the colloid 21 are fixedly connected with the adjacent reflecting side surfaces 112, so that the stability of the reflecting cup 11 in the reflecting cover 1 is enhanced, the capability of resisting deformation caused by external factors is improved, the reflecting cup is fixed in a large range along a certain direction, the fixing effect is better than that of a point, and the reflecting cup is suitable for the reflecting cover 1 with a larger size.
In the present invention, the fixing bar 22 is made of metal as an alternative. In addition, the fixing strip 22 may be made of a material that is known not to be affected by external factors and not to expand or contract.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.
Claims (10)
1. A bowl, characterized in that it comprises a plurality of reflector cups (11) and a plurality of reinforcing structures (2), wherein:
the reinforcing structure (2) is connected to the intersection of the adjacent reflecting cups (11) so as to fix the positions of the reflecting cups (11).
2. A reflector according to claim 1, characterized in that the reinforcing structure (2) is a hard glue provided at the intersection of the connections of adjacent reflector cups (11).
3. The reflective cover according to claim 2, wherein said hard adhesive member is made of acrylic adhesive.
4. The bowl according to claim 1, wherein the bowl (11) comprises a reflective bottom surface (111) and a reflective side surface (112) connected to the reflective bottom surface (111);
the reinforcing structure (2) comprises a colloid (21) and a fixing strip (22) connected with the colloid (21), and the colloid (21) is connected with the adjacent reflection side surfaces (112) of the adjacent reflection cups (11) respectively.
5. A reflector according to claim 4, characterized in that the fixing strip (22) is made of metal.
6. The bowl according to claim 5, characterized in that the reflecting bottom surface (111) is provided with a plurality of first through holes (1111).
7. A reflector according to any one of claims 1-6, characterized in that several reflector cups (11) are arranged in an array.
8. A direct type backlight module comprising a lamp panel (3), a double-sided tape (5), a diffuser plate (6) and an optical film (7), characterized by further comprising a reflection cover (1) according to any one of claims 1 to 7;
the lamp plate (3), double faced adhesive tape (5), bowl (1), diffuser plate (6) and optics diaphragm (7) set gradually in proper order.
9. The direct type backlight module according to claim 8, wherein the lamp panel (3) is provided with a plurality of LED chips (4), and at least one LED chip (4) is connected to the reflective cup (11).
10. A direct type backlight module according to claim 9, wherein the optical film (7) comprises a diffuser film, a fluorescent film, a lower light enhancement film and an upper light enhancement film connected in sequence, and the diffuser film is connected with the diffuser plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725780.8U CN215416205U (en) | 2021-07-26 | 2021-07-26 | Reflector and direct type backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121725780.8U CN215416205U (en) | 2021-07-26 | 2021-07-26 | Reflector and direct type backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215416205U true CN215416205U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121725780.8U Active CN215416205U (en) | 2021-07-26 | 2021-07-26 | Reflector and direct type backlight module |
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| CN (1) | CN215416205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115933251A (en) * | 2022-12-13 | 2023-04-07 | 伟志光电（深圳）有限公司 | Reflecting cover structure capable of guiding light uniformly and backlight module |
-
2021
- 2021-07-26 CN CN202121725780.8U patent/CN215416205U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115933251A (en) * | 2022-12-13 | 2023-04-07 | 伟志光电（深圳）有限公司 | Reflecting cover structure capable of guiding light uniformly and backlight module |
| CN115933251B (en) * | 2022-12-13 | 2024-07-02 | 伟志光电（深圳）有限公司 | Reflection cover structure with uniform light guide and backlight module |
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