CN212113043U - Thin uniform light backlight module - Google Patents
Thin uniform light backlight module Download PDFInfo
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- CN212113043U CN212113043U CN202020819076.8U CN202020819076U CN212113043U CN 212113043 U CN212113043 U CN 212113043U CN 202020819076 U CN202020819076 U CN 202020819076U CN 212113043 U CN212113043 U CN 212113043U
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- plate
- mounting groove
- backlight
- light
- led circuit
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Abstract
The utility model discloses a slim uniform light backlight unit, a serial communication port, include: the backlight plate is made of a diffusion light-transmitting material and is provided with a mounting groove; the diffusion sheet is arranged in the mounting groove; the LED circuit is arranged at the lower part of the diffusion sheet, and an LED lamp group in the LED circuit is positioned in an interlayer of the backlight plate and the LED circuit; and the white reflecting plate is arranged between the LED circuit and the diffusion sheet and covers the diffusion sheet. According to the thin uniform light backlight module, through secondary diffusion, the backlight plate has good uniform light when emitting light; the sheet-shaped composition structure has simple structure, and the thin uniform light backlight module formed by assembling has thinner whole thickness and small occupied space.
Description
Technical Field
The utility model relates to a backlight unit field, in particular to slim uniform light backlight unit.
Background
With the development of LED backlight module technology, LED backlight modules are used as light sources in more and more places. The backlight module is often used as a light source at a logo of equipment such as a computer case, and the existing backlight module has a complex structure and a large volume and occupies a large space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a slim uniform light backlight unit, simple structure, the volume is less, wholly is platelike, saves installation space.
According to the utility model discloses slim uniform lighting backlight unit of first aspect embodiment includes:
the backlight plate is made of a diffusion light-transmitting material and is provided with a mounting groove;
the diffusion sheet is arranged in the mounting groove;
the LED circuit is arranged at the lower part of the diffusion sheet, and an LED lamp group in the LED circuit is positioned in an interlayer of the backlight plate and the LED circuit;
and the white reflecting plate is arranged between the LED circuit and the diffusion sheet and covers the diffusion sheet.
According to the utility model discloses slim uniform light backlight unit has following technological effect at least: light rays of an LED lamp group of the LED circuit are emitted into the diffusion sheet from the bottom end of the diffusion sheet, are refracted and diffused in the diffusion sheet and are transmitted to the whole diffusion sheet, are emitted into the backlight plate, and are finally emitted after being diffused in the backlight plate; through secondary diffusion, the backlight plate has good light uniformity when emitting light; the sheet-shaped composition structure has simple structure, and the thin uniform light backlight module formed by assembling has thinner whole thickness and small occupied space.
According to some embodiments of the present invention, the mounting groove further comprises a black mirror surface adhesive tape, one side of the black mirror surface adhesive tape is adhered to the bottom of the mounting groove; the other side of the black mirror surface adhesive tape is connected with the LED circuit. The black mirror surface adhesive tape is pasted in the mounting groove bottom to with LED circuit connection, cover around the LED banks, prevent the light leak, reduce the light loss, the mirror surface of adhesive tape lets the light transmission of directive adhesive tape to the white reflecting plate on, promote backlight unit's luminance.
According to the utility model discloses a some embodiments, the upper portion of mounting groove is provided with stupefied strip, stupefied strip is used for right the diffusion piece carries on spacingly. The position of diffusion piece is injectd to the interior stupefied strip that sets up of mounting groove for diffusion piece is difficult for the free movement in the mounting groove.
According to some embodiments of the present invention, the mounting groove is further provided with a first positioning block and a second positioning block, the first positioning block is disposed at the bottom end of the mounting groove, and the second positioning block is disposed at both sides of the bottom of the mounting groove; the white reflecting plate is provided with a positioning notch at a position corresponding to the second positioning block, and the LED circuit is provided with a positioning notch at a position corresponding to the first positioning block and the second positioning block respectively. Through the combination of the positioning block and the positioning notch, the LED circuit and the white reflecting plate can be accurately positioned and fixed at the bottom of the mounting groove and are not easy to shift.
According to some embodiments of the utility model, the board in a poor light still is provided with the trip, the trip sets up the top middle part of board in a poor light. The clamping tenon is used for installing the thin uniform light backlight module in the position needing to be installed such as the inside of the case, and the thin uniform light backlight module is installed more firmly by the clamping tenon structure in a buckling mode.
According to the utility model discloses a some embodiments, the board in a poor light still is provided with the fixed plate, the fixed plate sets up the middle part both sides of board in a poor light, the middle part of fixed plate still is provided with the through-hole. The screw passes through the through-hole and is connected with slim even light backlight unit installation department, through the setting of fixed plate, can let backlight unit's installation more firm, is difficult for the pine to take off.
According to some embodiments of the present invention, the backlight plate and the diffusion sheet are made of PC light diffusion plastic. The back light plate and the diffusion sheet made of PC light diffusion plastic have the characteristics of high light transmission, high diffusion and good light uniformity.
According to some embodiments of the invention, the LED light group comprises a red light emitting element, a green light emitting element and a blue light emitting element. Through RGB technique, backlight unit can realize multiple color light efficiency as required.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic back view of a thin uniform light backlight module according to an embodiment of the present invention;
fig. 2 is a schematic view of a backlight plate according to an embodiment of the present invention;
fig. 3 is an exploded view of a thin uniform light backlight module according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The thin uniform light backlight module 100 according to the embodiment of the present invention is described below with reference to the drawings.
The thin uniform backlight module 100 according to the embodiment of the present invention includes a backlight plate 110, a diffusion sheet 130, an LED circuit 140 and a white reflector 120. The backlight plate 110 is made of a diffusion light-transmitting material and is provided with a mounting groove 111; the diffusion sheet 130 is disposed in the mounting groove 111; the LED circuit 140 is arranged at the lower part of the diffusion sheet 130, and the LED lamp group 141 in the LED circuit 140 is positioned in the interlayer of the backlight plate 110 and the LED circuit 140; the white reflection plate 120 is disposed between the LED circuit 140 and the diffusion sheet 130, and covers the diffusion sheet 130.
As shown in fig. 1 and 3, the backlight plate 110 is a square thin plate, surrounding plates are arranged around the thin plate, and a mounting groove 111 is formed inside the surrounding plates; the diffusion sheet 130 is a square sheet having a width identical to that of the mounting groove 111, and is disposed in the middle of the mounting groove 111; the white reflecting plate 120 is adhered on the LED circuit 140, the LED circuit 140 is arranged in the mounting groove 111 and below the diffusion sheet 130, and the LED lamp group 141 in the LED circuit 140 is aligned with the side surface of the diffusion sheet 130; the white reflection plate 120 is positioned in the interlayer of the LED circuit 140 and the diffusion sheet 130, the width of the white reflection plate 120 is the same as that of the mounting groove 111, and the area covers the entire diffusion sheet 130.
According to the thin uniform light backlight module 100 of the embodiment of the present invention, the light of the LED lamp group 141 of the LED circuit 140 is incident into the diffusion sheet 130 from the bottom end of the diffusion sheet 130, and the light is refracted and diffused in the diffusion sheet 130 to the whole diffusion sheet 130, then is incident into the backlight plate 110, and finally is diffused in the backlight plate 110 and then is emitted; through the secondary diffusion, the backlight plate 110 has good light uniformity when emitting light; the structure of the plate-shaped assembly is simple, the thickness of the thin uniform backlight module 100 is small, and the occupied space is small.
As shown in fig. 2 and 3, in some embodiments of the present invention, the mirror surface adhesive tape further includes a black mirror surface adhesive tape 150, and one side of the black mirror surface adhesive tape 150 is adhered to the bottom of the mounting groove 111; the other side of the black mirror surface tape 150 is connected to the LED circuit 140. The black mirror surface tape 150 covers from the bottom of the diffusion sheet 130 to the bottom of the backlight plate 110, and the black mirror surface tape 150 is connected to the bottom of the LED circuit 140 board to wrap the LED circuit 140 and the slit of the mounting groove 111. The black mirror surface adhesive tape 150 is pasted at the bottom of the mounting groove 111 and is connected with the LED circuit 140, the periphery of the LED lamp group 141 is covered, light leakage is prevented, light loss is reduced, the mirror surface of the adhesive tape enables light emitted to the adhesive tape to be emitted to the white reflecting plate 120, and brightness of the backlight module is improved.
As shown in fig. 2, in some embodiments of the present invention, the upper portion of the mounting groove 111 is provided with a fillet 112, and the fillet 112 is used for limiting the diffusion sheet 130. The length of the fillet 112 is the same as the width of the mounting groove 111, is arranged in the mounting groove 111, and is positioned above the diffusion sheet 130. The position of the diffusion sheet 130 is limited by the fillets 112 arranged in the mounting groove 111, so that the diffusion sheet 130 is not easy to move randomly in the mounting groove 111, and the mounting position of the diffusion sheet 130 is quickly and accurately positioned when the mounting is convenient.
As shown in fig. 1 and 2, in some embodiments of the present invention, the mounting groove 111 is further provided with a first positioning block 113 and a second positioning block 114, the first positioning block 113 is disposed at the bottom end of the mounting groove 111, and the second positioning block 114 is disposed at two sides of the bottom of the mounting groove 111; the white reflecting plate 120 is provided with a positioning notch 142 at a position corresponding to the second positioning block 114, and the LED circuit 140 is provided with a positioning notch 142 at a position corresponding to the first positioning block 113 and the second positioning block 114, respectively. The second positioning block 114 is provided with two semi-cylindrical projections, which are respectively arranged on two sides of the bottom of the mounting groove 111 and connected with the surrounding plate of the backlight plate 110; the first positioning block 113 is arranged in the middle of the bottom end of the mounting groove 111 and is a square bump; the LED circuit 140 and the white reflective plate 120 are provided with positioning notches 142 at positions corresponding to the second positioning blocks 114 at both sides, and the bottom end of the LED circuit 140 is provided with a positioning notch 142 at a position corresponding to the first positioning block 113. Through the combination of the positioning block and the positioning notch 142, the LED circuit 140 and the white reflecting plate 120 can be accurately positioned and fixed at the bottom of the mounting groove 111 without displacement.
As shown in fig. 1, in some embodiments of the present invention, the backlight plate 110 is further provided with a latch 115, and the latch 115 is disposed at the middle of the top end of the backlight plate 110. The tenon 115 is used to install the thin uniform light backlight module 100 at a desired installation position such as the inside of a chassis, and the installation is more firm by the tenon 115 structure through a fastening manner.
As shown in fig. 1 and 2, in some embodiments of the present invention, the backlight plate 110 is further provided with fixing plates 116, the fixing plates 116 are disposed on two sides of the middle portion of the backlight plate 110, and the middle portion of the fixing plates 116 is further provided with a through hole 1161. The fixing plate 116 extends outwards from the middle of the two sides of the backlight plate 110, and a through hole 1161 for passing a screw is arranged in the middle of the fixing plate 116; the screws pass through the through holes 1161 to connect with the mounting position of the thin uniform light backlight module 100, and the backlight module can be more stably mounted and is not easy to loosen due to the arrangement of the fixing plate 116.
In some embodiments of the present invention, the backlight plate 110 and the diffusion sheet 130 are made of PC light diffusion plastic. The light diffusion PC plastic is also called polycarbonate light diffusion plastic, and is a light-transmitting and opaque light diffusion material particle which is polymerized by taking transparent polycarbonate plastic as a base material, adding a certain proportion of light diffusion agent and other auxiliary agents through a special process. The backlight plate 110 and the diffusion sheet 130 made of the PC light-diffusing plastic have the characteristics of high light transmittance, high diffusion and good light uniformity.
In some embodiments of the present invention, the LED light group 141 includes a red light emitting element, a green light emitting element, and a blue light emitting element. Through RGB technique, backlight unit can realize multiple color light efficiency as required.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A thin uniform light backlight module is characterized by comprising:
the backlight plate is made of a diffusion light-transmitting material and is provided with a mounting groove;
the diffusion sheet is arranged in the mounting groove;
the LED circuit is arranged at the lower part of the diffusion sheet, and an LED lamp group in the LED circuit is positioned in an interlayer of the backlight plate and the LED circuit;
and the white reflecting plate is arranged between the LED circuit and the diffusion sheet and covers the diffusion sheet.
2. The thin uniform light backlight module as claimed in claim 1, further comprising a black mirror surface tape, wherein one side of the black mirror surface tape is adhered to the bottom of the mounting groove; the other side of the black mirror surface adhesive tape is connected with the LED circuit.
3. The thin uniform light backlight module as claimed in claim 1, wherein the upper part of the mounting groove is provided with fillets, and the fillets are used for limiting the diffusion sheet.
4. The thin uniform light backlight module as claimed in claim 1, wherein the mounting groove is further provided with a first positioning block and a second positioning block, the first positioning block is disposed at the bottom end of the mounting groove, and the second positioning block is disposed at two sides of the bottom of the mounting groove; the white reflecting plate is provided with a positioning notch at a position corresponding to the second positioning block, and the LED circuit is provided with a positioning notch at a position corresponding to the first positioning block and the second positioning block respectively.
5. The thin uniform light backlight module as claimed in claim 1, wherein the backlight plate is further provided with a tenon, and the tenon is disposed at the middle of the top end of the backlight plate.
6. The thin uniform light backlight module as claimed in claim 1, wherein the backlight plate is further provided with a fixing plate, the fixing plate is disposed at two sides of the middle portion of the backlight plate, and the middle portion of the fixing plate is provided with a through hole.
7. The thin uniform light backlight module as claimed in claim 1, wherein the backlight plate and the diffuser plate are made of PC light diffusing plastic.
8. The thin, uniform illumination backlight module as recited in claim 1, wherein the LED light set comprises red, green and blue light emitting elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020819076.8U CN212113043U (en) | 2020-05-15 | 2020-05-15 | Thin uniform light backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020819076.8U CN212113043U (en) | 2020-05-15 | 2020-05-15 | Thin uniform light backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212113043U true CN212113043U (en) | 2020-12-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020819076.8U Active CN212113043U (en) | 2020-05-15 | 2020-05-15 | Thin uniform light backlight module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212113043U (en) |
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2020
- 2020-05-15 CN CN202020819076.8U patent/CN212113043U/en active Active
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